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Five-Year Annual Transmission Capability Statement (2009 - 2013)

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Preface

This Transmission Capability Statement is provided by the Oman Electricity Transmission Company according to Transmission and Dispatch Licence Condition number 27 and in accordance to the Grid Code / Planning Code. The Statement describes in detail the transmission system capability over the coming five years 2009-2013. The Statement provides up-to-date transmission system data in order to identify those parts of the system, which offer the opportunity for future development of existing and potential users of the system.

In this Capability Statement the results of load flow and short circuit analysis are presented based on the planned system reinforcement to meet the demand forecast provided by Oman Power and Water Procurement Company and the distribution companies. The Statement presents complete solutions of all problems reported in the previous Five Year Capability Statement (2008-2012). By the end of the period covered by the present Statement, problems of line and transformer loadings, voltage, and fault current issues will be completely removed. Significant improvement has been introduced in the OETC grid model, e.g. updated project schedule, generation data, system data and control settings.

The existing and planned development in the generation and is transmission system is described and a new section for transmission system derogations is also included in the Statement.

Eng: Ali Said Al Hadabi

OETC General Manager


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Contents

Preface 2

List of Figures 5

List of Tables 6

Document History and Status 7

1. Executive Summary 8

2. Introduction 9

3. Technical Requirements for Compliance with the Grid Code and Licence 22 3.1. System Frequency 25 3.2. System Voltage 26 3.3. Security of Supply 26

4. OETC System Design and Planning Standards 27 4.1 Oman Electrical Standard OES 11 27 4.2 Oman Electrical Standard OES 25A and 25B 27 4.3 Oman Electrical Standard OES 27 27 4.4 Oman Electrical Standard OES 32 27 4.5 Other Standards 28

5. OETC Transmission System 28 5.1 Existing 220/132 kV Transmission System 28 5.2 Future System Development Projects 30

5.2.1 Projects expected to be completed to meet the 2009 peak demand 30 5.2.2 Projects expected to be completed to meet the 2010 peak demand 30 5.2.3 Projects expected to be completed to meet the 2011 peak demand 31 5.2.4 Projects expected to be completed to meet the 2012 peak demand 32 5.2.5 Projects expected to be completed to meet the 2013 peak demand 32

5.3 Summary 33

6. Existing and Planned Developments in Generation 39 6.1 Existing Generation 39 6.2 Planned Retirements of Existing Plant 43 6.3 Planned Future Generation (2009 – 2013) 43 6.4 Non-Contracted Generating Capacity 44 6.5 Interconnections 46 6.5.1 Interconnection with the UAE and the rest of the GCC Grid 46

6.5.2 Interconnection with PDO 47 6.6 Economic Dispatch 47 6.7 Spinning Reserve 47

7. Demand Forecast and Generation Availability 48


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7.1 System Demand 47 7.2 Demand Forecast 49 7.3 System Maximum Demand Forecast and Generation Availability 53

8. Transmission System Performance 58 8.1 Power Flow and Voltage Profiles 58 8.2 Fault Lvels 66

9. Development Opportunities 67

9.1 Review of the generation versus load balance on an area basis 67

9.2 Available grid station capacity 69

10. Derogations 76 Appendix A Review of Future Developments 80

A.1 Summery to projects to be completed annually between 2009-2013 peak demand 80 A.2 Projects expected to be completed to meet the 2009 peak demand 80

A.3 Projects expected to be completed to meet the 2010 peak demand 81




Appendix B Transmission System data 94

B.1 Substations Loads and Capacitor data 94 B.2 Overhead Line Circuit Capacities and Parameters 94

B.3 Transformer data 94

Appendix C Power System Studies 109

C.1 Summary of Load Flow Study results 109 C.2 Summary of Fault Level Study results 109

C.3 Diagrames of the model for the Load Flow Study Results 109


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List of Figures Figure 1: OETC existing transmission system in 2009 34

Figure 2: Expected development by 2010 35



Figure 5: Expected development by 2013 38 Figure 6: OETC System Load on 2008 Peak Day (31/5/2008) 48

Figure 7: OETC System Load on 2008 Minimum Load Day (18/1/2008) 49

Figure 8: Reduction of number of out-of-firm transmission lines during 2009-2013 62

Figure 9: Reduction of number of out-of-firm transformers during 2009-2013 63

Figure 10: Transmission power losses at peak demand of the years 2009-2013 64

Figure 11: Trend in peak load growth over the period 2009-2013 65

Figure 12: Future OETC Transmission System (2013) 70

Figure C.1 OETC Transmission System 2009 Max. Load Flow Condition 135






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Tables

Table1: Summary of Planned Developments on OETC Transmission System (2009 - 2013) 10

Table 2: Existing and Committed Future Generating Capacity 41

Table 3: New Contracted and Planned Generating Capacity 44

Table 4: Non-Contracted Generating Capacity 45

Table 5: Centrally Dispatched Generating Capacity on OETC Transmission System 46

Table 6: Historic Growth in Peak Demand and Transmission Losses (2003 – 2008) 48

Table 7: Expected oad Transfers amounge Grid Supply Points (2009 - 2013) 51

Table 8: OETC Transmission System Demand Forecast by Grid Station 53

Table 9: Comparison of Demand Forecast with Available Generating Capacity including Planned Retirements 56

Table 10: Comparison of Demand Forecast with Available Generating Capacity with Retirements Postponed and

Non-Contracted Generation in service 57

Table 11: Summary of Connected Generation used in Load Flow Studies of Maximum Demand 59

Table 12: Summary of Connected Generation used in Load Flow Studies of Minimum Demand 60

Table 13: Estimated Power Surplus and Power Deficit on an Area Basis (2009 - 2013) 71

Table 14: Available Grid Station Capacity of more than 10 MVA in 2013 75

Table 15: Expected Over head lines/ cables which will not comply with N-1 criterion at peak demand in 2009 78

Table 16: Expected Grid stations/ Transformers 132/33 kV which will not comply with N-1 criterion at peak demand in 2009 79

Table B.1: Load and Capacitor Data for Grid Stations (2009 - 2013) 95

Table B.2: 2009 Branch Data Listing 98

Table B.3: Progressive Changes to Branch Circuit Data for 2010-2013 100

Table B.4: Grid Stations Transformer Data at peak 2009 103

Table B.5: Grid Stations Transformer Data from 2010 to 2013 105

Table C.1: Transformer Loading (%) at Grid Station (2009-2013) 110

Table C.2: Available Capacity at Grid Stations (2009 – 2013) for Connection of New Demand 113

Table C.3: Overhead Line and Cable Circuit Loading (%) at Peak Demand (2009-2013) 116

Table C.4: Transmission System Voltage Profile at Peak and Minimum Demand (2009 - 2013) 120

Table C.5: Estimation of Transmission Losses at Peak Demand (2009-2013) 125

Table C.6: Maximum 3-Phase Short Circuit Fault Levels 126

Table C.7: Maximum 1- Phase Short Circuit Fault Levels 131


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Document History and Status

Revision Date issued Reviewed by Approved by Date approved Revision type

D.0 21/2/2009 Eng. Hilal Al Hadi First draft

Prof. Omar Hanafy Abdalla “

Eng. Khamis Al Romaimi “

Eng. Hisham Al Riyami “

D.1 4/3/2009 Eng. Hilal Al Hadi Second draft




D.2 7/3/2009 Eng: Rashid Al Badwawi Third draft

Eng. Hilal Al Hadi “





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Distribution of Copies Revision Copy no Quantity Date Issued to

v.0 1 1 Eng. Ali Al Hadabi

1 1 Eng. Rashid Al Badwawi

1 1 Eng. Thani Al -Khusabi

1 1 Dr.Hilal Al Nasssri

1 1 Dr. Bhowmick

1 1 Eng: Younis Al Rewahi

1 1 Eng: Mohamed Al Mazroui

1 1 Eng: Masoud Al Reyami

1 1 Eng: El Tayeb Bashir

1 1 Mrs. Lubna Al Mahrouqi

1 1 Eng: K.S Babu

1 1 Mrs. Celia Whitaker

V.1 Revised meeting( All above members)

V.2 1 1 31/3/2009 Sent to AER for approval

19/5/2009 Comment from AER

18/5/2009 Meeting with AER

Revision of Projects

New List of projects sent to Discos

Receiving Comments from Discos

Revising of projects and analysing them in the model

20/6/2009 Start new analysis

23/6/2009 Requesting AER to extend the submission date

24/6/2009 Receiving letter from AER for extension

28/6/2009 Draft Submission

1/7/2009 Sent to SKM for review

10/7/2009 final revised document from SKM

11/7/2009 OETC review the comments and updates SKM Comments

13/7/2009 OETC Sent the updates to SKM

15/7/2009 Final comments are dealt with by OETC

15/7/2009 OETC received certification letter for the 5 Year Statement and Model from SKM

18/7/2009 Sent to AER for final revised approval

26/7/2009 Recived from AER for minor changes

29/7/2009 Sent back to AER

1/8/2009 Final version submitted for approval

Printed: 1 August 2009

Last saved: 1 August 2009 04:20 PM

Author: Strategic Planning and Projects / Strategic Planning and Study Section

Name of organisation: Oman Electricity Transmission Company S.A.O.C

Name of document: Five-Year Annual Transmission Capability Statement (2009 - 2013)

Document version: v.2 "As submitted to the Authority for Approval, March 2009"


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1.0 Executive Summary This Capability Statement presents the Oman Electricity Transmission Company’s development plans for the 220 kV and 132 kV transmission systems for the years 2009 to 2013.

The Statement includes data for the generators, loads, overhead line and cable circuits, transformers and capacitors used in the development of transmission system models for the power system studies undertaken with OETC’s DIgSILENT power system analysis software, version 14, in preparation of this Capability Statement. The Statement also includes the results of power system analysis of the transmission system that defines system performance when operating under the extremes of peak and minimum demand in each of the five years. From this analysis an assessment has been made of the opportunities for the connection of new generation and new demand on the system.

Table 1 lists the schedule for committed and planned system development projects on the 220/132 kV transmission system, although it should be noted that not all of the projects listed have full authorisation at this time. Implementation of these system development projects will increase the number of 220/132 kV grid stations from six to fourteen before the summer peak of 2013, with an additional installed firm grid substation capacity of 5,000 MVA. The number of 132/33 kV grid stations will also increase from the thirty one in service at the beginning of 2009 to forty nine (49) by the summer peak of 2013.

During the next five years the company is introducing direct voltage transformation from 220 kV to 33 kV and from 132 kV to 11 kV on the transmission system with respective 220/33 kV and 132/11 kV substations for the major residential/tourism developments at Blue City and Azaiba Coast (Wave Project).

It is also one of OETC’s strategic planning concepts to complete a 220 kV double circuit ring around northern Oman. By the summer of 2010 the proposed 220 kV connection between the Sohar Interconnector Station (SIS) and Al-Wasit in Mahadah will be completed to link the main load centre in Oman (Muscat) with the UAE and the rest of the GCC Grid via Sohar and the rapidly developing Sohar port and industrial area. By the first quarter of 2012 the 220 kV transmission system will also be extended from Misfah in the Muscat area to Jahloot and further eastwards to Sur. In addition, OETC plans to upgrade the line between Mahadah to Ibri to 220 kV to support the voltage and meet the expected load growth.

Beyond the period covered by this Statement, i.e. by the end of 2014, the 220 kV ring will be completed with the connection of Misfah Switching Station to Nizwa University Grid Station. The proposed 1,000 MW power plant at Duqum is scheduled for connection to the transmission system at some stage from 2015 onwards.

In accordance with Condition 27 of OETC’s Transmission Licence the power flow studies presented in this Capability Statement are based on demand forecast data provided by Oman Power and Water Procurement Company (OPWP) which it has used in its Seven-Year Statement (2009 – 2015). The forecast has been disaggregated by grid station, according to available DISCO data, for detailed power system analysis.


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Table1: Summary of Planned Developments on OETC Transmission System (2009 - 2013)

Project No.

Description Status Details Purpose

Peak 2009

1 132/33 kV GSP at Adam, 132 kV double circuit line Adam - Manah Power Station

Energized 2 x 40 MVA transformers, 47 km 132 kV SCCT line

Load transfer from Nizwa and feeds loads with voltage problems (66 km from Nizwa)

2

Upgrade Bahla GSP from 2 x 40 MVA to 2 x 125 MVA transformers Upgrade Nizwa GSP from 2 x 63 MVA to 2 x 125 MVA transformer

Partially Energized Bahla: 2 x 125 MVA transformers; Nizwa 2 x 125 MVA transformer

Increases capacity at Bahla and Nizwa to meet load growth requirements and to maintain N-1 criteria

Project No.


Peak 2010

3 New 132/33 kV GSP at Muladah on same site of MIS 220/132 kV grid station

Energized 2 x 125 MVA transformers, 132/33 kV at Muladah Grid Station 220/132kV

New Muladah (MIS) will take load transfer from Old Muladah (11km) and Khabourah (53km)

4

Phase 1: 132/33 kV GSP at Liwa, connect to Wadi Jizzi Power Station. Phase 2: Upgrade Wadi Jizzi-Liwa and Liwa-Shinas 132 kV SCCT line to DCCT (ph 2)

Energized not loaded 2 x 125 MVA transformers, 22km 132 kV DCCT line

Takes load transfer from Sohar Grid and Shinas


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Table1 (continued): Summary of Planned Developments on OETC Transmission System (2009 - 2013)

Project No.


Cont: 2010

5

132/33 kV GSP at Saham with 132 kV DCCT line from Khabourah and 220/132 kV SIS (Seh Al Makarim) grid station looped in and out of Saham

Under construction due in service Q3’09

2 x 125 MVA transformers Takes load transfer from Sohar Grid and Khabourah

6 220 kV DCCT line from Barka Power station to Filaj

Under construction, due in service Sep'09

11km, 220 kV DCCT line Reinforcement of OETC system between Barka P/Stn and Filaj

7 220/132/33 kV GSP at Airport Heights fed from the 220 kV Al Falaij - MSQ DCCT line

Under construction, due in service Nov.'09

2 x 500 MVA + 2 x 125 MVA transformers

Supplies new load and transfers some load from Bousher and Mawalleh

8 Azaiba Coast 132/11 kV grid station to supply Wave Project

Under construction, due in service Nov.'09 due to Airport Heights project

3x50MVA transformers Dedicated for the Wave project

9

Upgrade Seeb Main 132/33 kV grid station from 2 x 63 MVA transformers to 2 x 125 MVA. Upgrade 132kV DCCT overhead line from Mawalih to Seeb Main from single conductor to twin conductor

Evaluation of bids is ongoing.Expected

completion date is Q3’10 2 x 125 MVA transformers

Reinforcement of OETC system. Existing Seeb main grid is overloaded


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Project No.


Cont:2010

10 132/33 kV GSP at Wadi Sa'a connected to Mahadah- Dank 132 kV DCCT line

Contracted 2 x 63 MVA transformers. Around 37 km from Mahadah

Dedicated load for Al Buraimi Cement Co.

11 132/33 kV GSP at Yitti connected to new 132 kV busbars at Jahloot grid station via 132 kV DCCT line

Awarded 2 x 125 MVA transformers, 40km 132 kV DCCT line

Dedicated load for Yitti Resort and local Yitti load

12

Replacing portion of existing 220kV & 132kV OHL by underground Cables near existing & planned Residential Area in Muscat

EPC contract awarded Expected to be in

Q2_10

The 132kV lines will be replaced by 2500mm2 underground cable

Environment requirements

13 Rusail-Mawalih 132kV Expected to be in Q3'10 Reconnecting of 132kV lines between Rusail and Bousher(200m)

To meet N-1 and to cuter new load in the area.

14 Adding Temporary Transformer 40MVA at Ghoubrah

Expected to be in Q2’10 1 x 40MVA Transformer

To meet N-1 for the existing grid. This transformer will be removed after upgrading of Ghoubrah to 2x125MVA

15 Adding Temporary Transformer 63MVA at Seeb Main


To relief loading of the existing grid. This transformer will be removed after UPGRADING OF Seeb Main to 2 x 125MVA


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Project No.


Cont:2010

16 Adding New transformer 125MVA at MSQ


To meet N-1 for the existing grid. This transformer will be connected to the new 125MVA transformer at 2011 as MSQ-2 Grid within the same boundary of the existing grid.

17 Adding New transformer 125MVA at Mawalih grid.


To meet N-1 for the existing grid. This transformer will be connected to the new 125MVA transformer at 2011 as Mawalih-2 Grid within the same boundary of the existing grid.


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Project No.


Peak 2011

18 Bousher Airport Heights Expected to be in Q3'10 Reconnecting of 132kV lines between Rusail and Bousher(1000m) to Airport Heights

To meet N-1 and to Reduce short circuit Current at Bousher Grid.

19 Adding of new 125MVA transformer at Bousher Grid station and connecting of transformer 3

Expected to be in Q2'10 1 x 125MVA Transformer To meet N-1, load transfer from existing

grid, and to cater the new demand in the area.

20 132/33 kV GSP at Quriyat connected new 132 kV busbars at Jahloot via 132 kV DCCT line

Proposed scheme. Currently supplied at 33 kV via long lines. Expected to

be in Q2_11

2 X 125 MVA transformers, 30km 132 kV DCCT line

Currently supplied at 33 kV via long lines. This scheme will address voltage

problems.

21 Construction of 132/33kV Grid Station & associated transmission system at Al-Misfah area

Expected to be in Q1’11 2 x 125 MVA transformers LILO For new demand it will release load from Rusail Grid station

22 132 kV DCCT line between Dank and Al Hail grid stations

EPC tender floated. Expected to be in Q1_11 52km 132 kV DCCT line

Required to meet (N-1) requirements. This scheme is high priority and needs to be implemented as soon as possible.

23 132/33 kV GSP at Qurum connected to the proposed MSQ - Muttrah 132 kV DCCT line

Awarded due in service Q3_10

2 x 125 MVA transformers, 132/33kV in Al Qurum Grid station

Takes load transfer from Wadi Adai & MSQ, plus new developments at

Carrefour and Ras Al Hamra

24 Upgrade Al Wasit to Buraimi GS from 175mm2 to 400mm2.& 132 kV DCCT line onto steel towers

EPC tender Floated, due in service Q1_11 35km 132 kV DCCT line System reinforcement

25 220 kV DCCT line between SIS (Seh Al Makarem) and Al Wasit grid stations

Awarded Due in service 65km 220 kV DCCT line System reinforcement

Q3_10

26 220/33 kV GSP at Blue City connected to MIS 220 kV grid station via 220 kV DCCT line

EPC tender document is ready for tendering, due in

service Q1_11

2 x 160 MVA transformers, 50 km 220 kV DCCT line Dedicated to supply load at Blue City

27 132/33 kV GSP at Muttrah, connected direct to Qurum 132/33 kV grid station via 132 kV DCCT line

Floated due in service Q1-11

2 x 125 MVA transformers, 12km 132 kV DCCT line

Takes load transfer from Wadi Kabir and Al Falaj


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Table1 (continued): Summary of Planned Developments on OETC Transmission System (2009 - 2013) Project

No. Description Status Details Purpose

Cont:2011

28 Second phase of 220/132 kV GSP at Sohar Port Industrial Area (SIA2) Floated. Due in service Q4_10 2 x 500 MVA transformers

Dedicated to supply Sohar Industrial Area loads and provide load relief to Sohar

Industrial Area 'A' grid station

29 Upgrade Dank grid station from 2 x 15 MVA to 2 x 63 MVA transformers

Proposed scheme. Target date Q4_10

2 x 63 MVA transformers bay shafting Ibri transformers

Increases capacity at Dank to ensure (N-1) met.

30 Adding new Transformer 125MVA at MSQ Tx.4 Expected to be in Q2’11 1 x 125MVA Transformer

To meet N-1 for the existing grid. This transformer will be connected with the third transformer as new MSQ-2 grid within the

same boundary.

31 Adding new Transformer 125MVA at Mawalih (Mawalih-2) Tx.4 Expected to be in Q2’11 1 x 125MVA Transformer

To meet N-1 for the existing grid. This transformer will be connected with the third transformer as new Mawalih-2 grid within

the same boundary.

32 Upgrade of Ibri grid station from 2 x 63 MVA to 2 x 125 MVA transformers

Proposed scheme. Target date Q2_11 2 x 125 MVA transformers To meet the demand growth in area.

33 Construction of 132/33kV Grid Station & associated transmission system at Nakhal Area

Awarded to be in service Q4_10 2 x 125 MVA , 20km 132kV lines

For new demand it will release load from Barka main grid station to improve voltage

profile of 33kV lines in the area.

34 Construction of new 220kV lines from Mahadah to Ibri Expected to be in Q2_11 2 x 500MVA,120km 220 kV System reinforcement and voltage support

in Dahirah Area( Ibri,hank and AlHair)


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Peak 2012

35 132/33 kV GSP at Yankit connected to new 132 kV busbars at Jahloot grid station via 132 kV DCCT line

Expected to be in Q2'12 2 x 125 MVA transformers 45km 132 kV DCCT line

Phase 1 (2010): 60 MVA supplied at 132 kV from Yitti (5km away). Phase 2 (2011): With

220 kV established at Jahloot supply to Yankit taken from Yitti at 132 kV. Seefa Resort (15km from Yankit) supplied from Yankit. This project not confirmed waiting

conformation form the developer.

36 220/132 kV GSP at Jahloot connected to Misfah grid station via 220 kV DCCT line Expected to be in Q2'12 Adding 2 x 500MVA with 70km of 220kV

O/H line between Misfah and Jahloot

To meet load growth requirements and improve voltage profile and to be linked with

Sur area.

37 220/132 kV grid station at Sur connected to Jahloot grid station via a 220 kV DCCT line when 220 kV bus established at Jahloot

Expected to be in Q2'12 2 x 500 MVA transformers 160km 220 kV DCCT line

Required to support voltage in Sur and BB Ali areas. And to meet load growth ( OETC studying to construct this line as 400kV and

operated as 220kV)

38 Upgrade of Mudhabi grid station from 2 x 63 MVA to 2 x 125 MVA transformers Expected to be in Q2_12 2 x 125 MVA transformers To meet load growth requirements and to

maintain N-1

39 Upgrade of Izki grid station from 2 x 40 MVA to 2 x 125 MVA transformers Expected to be in Q2_12 2 x 125 MVA transformers To meet load growth requirements and to

maintain N-1

40 Upgrade of Rustaq grid station from 2 x 63 MVA to 2 x 125 MVA transformers Expected to be in Q2_12 2 x 125 MVA transformers To meet load growth requirements and to

maintain N-1

41 Upgrade of Sumail grid station from 2 x 63 MVA to 2 x 125 MVA Tx. Expected to be in Q2_12 2 x 125 MVA transformers To meet load growth requirements and to

maintain N-1

42 132/33 kV GSP at Al Kamil Expected to be in Q2_12 2 x 125 MVA transformers Load transfer and to met load growth requirements in the area.

43 132/33 kV GSP at Nizwa (University) Expected to be in Q2_12 2 x 125 MVA transformers connected to LILO of Izki - Nizwa 132kV lines.

Load transfer and to met load growth requirements in the area.

44 132/33 kV GSP at Al Roudha Expected to be in Q2_12 2 x 63MVA transformers connected to Al Modhabi through 40km 132kV lines.

To increase Voltage profile for the long 33kV lines (60km), Load transfer and to met load

growth requirements in the area.

45 Construction of new 220kV Grid station at Misfah Expected to be in Q212 New 220kV GIS interconnection Grid for

new IPP at Misfah To connect the new IPP to the Grid.

46 Upgrading of Ghoubrah 132kV Expected to be in Q2'12 2 x 125MVA Transformers To meet N-1 , cater load growth and to

connect the new IPP

47 Upgrading of Wadi Adai 220/132kV Expected to be in Q4'11 2 x 500MVA transformers, with 45km 220kV over head lines

To connect the new IPP from Barka and to support the Voltage at Muscat Grid Stations (Wadi Adai, Wadi Al Kabir and Al Falaj and to be as alternative supply for these Grids.


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Cont:2012

48 Construction of new 220kV lines between SPS and SIS grid stations.(For new IPP at Sohar) Expected to be in Q1'12

New 220kV GIS switch gear at Sohar with 6 km 2500mm2 cable and 36km 220kV

DCCT line

To connect the new IPP from Sohar to SIS Grid station.

49 Construction of new 220kV Grid Station at Barka for the new IPP Expected to be in Q1'12 New 220kV GIS interconnection Grid for

new IPP to Misfah

To connect the new IPP to the Grid. This project is linked with new Barka 220kV and

Misfah grid.

50 Construction of new 220kV Grid Station at Sohar for the new IPP Expected to be in Q1'12 New 220kV GIS interconnection Grid for

new IWPP to SIS To connect the new IPP to the Grid.

51 New grid at Amerat area Expected to be in Q2'12 2 x 125MVA , 25km 132kV lines between MSQ and Jahloot Lines (LILO)

Load transfer from Jahloot and to be as voltage support in Amerat area

52 New Grid station at Multaqa (Sohar) Expected to be in Q2'12 2 x 125MVA , 10km 132kV from Sohar grid station load transfer from Sohar Grid.(77.7MW)

53 New Grid at Al-Ghala area (Muscat) Expected to be in Q2’12 2 x 125MVA transformers connected to Airport Heights grid station

To cater the expected load growth in the area and load transfer

54 New grid at Buraimi Expected to be in Q2'12 2 x 125MVA, connected to the existing

Mahadah-Buraimi 132kV LILO with additional around 4km

To meet N-1, load transfer from existing Buraimi Grid(64.2MW), and new load at the

area.

55 New Grid at Sohar Special Economic Zone(SSEZ) Expected to be in Q2'12

2 x 125MVA , 10km 132kV from SIA-2 grid station by using 2500mm2

underground cable

To cater the new load requirement for this area.

56 Aijah (Sur-2) Expected to be in Q212 2 x 125MVA, 25km 132kV from Sur grid

To cater the load growth at Ras Al Had area and to solve the issue of voltage drop,

currently this area is fed by 33Kv feeders from Sur grid 60km and load transfer(40MW)

from existing Sur Grid

57 Adding 2 new 132kV circuits (11km) between Filaj-Barka Main 132kV Lines Expected to be in Q2’12 2 new 132kV Circuits to meet N-1 To meet N-1

58 Upgrading of Wadi Adai-Wadi Kabir 132kV lines (8km) Expected to be in Q2'12

Upgrading of Wadi Adai Wadi Kabir 132kV conductor to be twin YEW to meet

N-1 To meet N-1


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Peak 2013

59 New Grid station at Dreez Expected to be in Q1'13 2 x 63MVA, 30km 132kV lines from Ibri grid station.

To cater the load growth at Dreez area and to solve the issue of voltage drop, currently

this area is fed by two 33Kv feeders from Ibri grid/ load transfer(46.1MW)

60 New Grid Station at Al Khadh(Muscat) Expected to be in Q1'13 2 x 125MVA, 10km 132kV lines from Mawalih grid station

To cater the load growth at Mawalih and Mabailaha and load transfer with grids in this

area(Mawalih , Seeb Main and Mabailah)

61 Upgrading of Barka Main Expected to be in Q1'13 2 x 125MVA

To meet N-1 for the existing grid. These transformers will be connected with existing Barka main as new Barka Main-2 grid within the same boundary.

62 Upgrading of Manah-Nizwa 132kV lines Expected to be in Q1'13 Upgrading of the conductor (20km) This project to be organized with UPCo. 63 Upgrading of Mahadah Grid Station Expected to be in Q1'13 2 x 63MVA To meet N-1 for the existing grid.

64 Installing of Fault Current Limiters at Ghoubrah Expected to be in Q1'13 using latest technology To reduce short circuit Current effect in the area.


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In order to model future system development as accurately as possible the distribution companies are required by the Grid Code to provide OETC with information that identifies their load transfer plans, including the load to be transferred, the timing and the grid stations involved, data that is also provided to OPWP for its own forecast of generation requirements. From the individual demand forecasts of the distribution companies, OETC has developed its own demand forecast for the transmission system as a whole, including the load transfers between grid stations that are then incorporated into the power system models for each year.

The forecast average annual growth in system demand of almost 12 % over the period 2009 –2013 drives many of the planned grid station reinforcements with a large portion of the additional demand supplied to the distribution companies through the 132/33 kV grid stations. To meet security of supply requirements and provide load relief to the heavier loaded grid stations it will be necessary to transfer excess load to the new or existing, but lightly-loaded grid stations. Comparison of the demand forecast with generation availability as defined in the OPWP Seven-Year Statement (2009-2015) shows a potential shortfall in generation capacity at system peak in 2010 and 2011. To meet the shortfall caused by planned plant retirements at Ghubrah and Wadi Jizzi it is assumed that power will be imported from direct customer generation. In addition the new generating capacity from Barka Phase-2 (SMN), Barka Phase-3 and Sohar Phase-2 will be required to meet future growth and avoid a further shortfall in generating capacity.

As the demand grows there is a greater need to extend the 220 kV transmission system so that bulk power is transmitted at this voltage rather than 132 kV in order to avoid overloads, improve voltages and reduce power losses. Consequently it is OETC’s objective to operate 220 kV as the main transmission voltage and use 132kV for sub-transmission and at some future date consider the introduction of 400 kV for the transmission of bulk power over long distances.

From Table 1 a total of 64 transmission projects are planned over a three year period, most of which are designed to increase the transmission system capacity so that it can meet future growth in demand and satisfy the security criteria. This is a major programme of capital investment in its infrastructure that will be spread across the whole network to improve transmission system performance across northern Oman and power system studies presented in this Statement confirm that the planned investment in 220 kV grid stations and transmission circuits will provide substantial spare capacity on the 220 kV transmission system to well beyond 2013.

The major technical issue identified in the studies was with high short-circuit fault levels on the 132 kV busbars at 4 grid stations in the Muscat area. The grid stations at Ghubrah, Bousher, Rusail and Madinat Sultan Qaboos (MSQ) were all shown in earlier studies (OETC Five Year Capability Statement 2008-2012) to have high 132 kV fault levels. Accordingly, OETC has taken appropriate remedial action to address this problem by implementing in the short–term, measures to split the 132 kV busbars at Rusail and Ghubrah.


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In 2009, the 132 kV busbars were split at Rusail, but practical difficulties at Ghubrah prevented its implementation and the action to split the 132 kV busbars there has been postponed to be implemented later. Until then operating restrictions are being applied to avoid performing any works near switchgear at Ghubrah Power Station. Splitting the 132 kV busabrs at these power stations significantly reduces the fault level on the 132 kV transmission system in the Muscat area and temporarily solves the short circuit problem at zero cost.

In 2012 Rusail will no longer need splitting due to the network development and reconfiguration works completed to facilitate the addition of new IPPs, and therefore the Rusail busbars will be returned to normal operation. In 2013, with the completion of transmission system developments required to facilitate the introduction of new IWPP at Ghubrah, splitting of the busbars will no longer be required.

Load flow studies have confirmed that with the exception of the 132 kV bus-bars at Al Hail, the voltage levels across the transmission system can be maintained within the +/-10 % limits defined in the Grid Code. In the case of Al Hail, the 132/33 kV grid station is currently supplied via a single circuit line from Dank, but by the end of 2010 this will be upgraded to a double circuit connection

At Al Hail and at other remote locations, such as Sur at the eastern end of the transmission system, there is a strong case for the deployment of reactive compensation as a cost effective means of improving the system voltage. Similarly, with the demand in the Muscat area continuing to grow there are occasions when some grid stations in the Muscat area suffer reduced voltages at times of heavy load. To overcome this problem, Muscat Electricity Distribution Company (MEDC) have agreed to install new capacitor banks on the 33 kV busbars at Bousher, MSQ, Muttrah, Qurum, and Jahloot grid stations and studies presented in the report have confirmed that their addition by the summer of 2010 will produce a significant improvement in the voltage profile across the Muscat area.

Consequently, OETC has written to the distribution companies to request that they add more capacitor banks at the distribution voltage level to operate within the recommended power factor as an additional measure for improving system efficiency for the 2010 and 2011 system peaks.

The voltage problems experienced in the Al Dahirah area has led OETC to review its plans for system reinforcement to this area with the 220 kV system extended from Mahadah (Al Wasit) to Ibri, with Ibri scheduled upgraded before the 2011 peak. When this work is completed, the transmission system in this area will be fully compliant with the voltage requirements set by the Grid Code and the (N-1) security requirements set by Licence Condition 26.

OETC has floated a reactive power and voltage study in coordination with the distribution companies and a detailed study of the short circuit issue is also in progress to formulate long term plans for dealing with the fault level issue beyond 2013.

The Statement has reviewed the opportunities for the connection of new generation and new demand and identified those grid stations with substantial spare capacity where it should be possible to connect new demand to the system. A review of the balance between generation and demand has shown that the


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construction of a new 500 MW power plant at Ghubrah in 2013 to supplement the existing generation at Ghubrah and the Barka Phase 2 and Phase 3 power plants will produce a generation surplus in the Greater Muscat area.

Section 2 of the Statement provides an introduction to the document, identifying the main related documentation and the key changes that have taken place on the transmission system since the previous issue of the Statement.

Section 3 identifies the technical requirements of the Grid Code and the Transmission Licence with specific attention to system voltage, frequency and security of supply.

Section 4 describes the main engineering standards used by OETC in its planning and design of the transmission system.

Section 5 describes the existing transmission system and summarises the planned developments in each year over the period 2009 to 2013.

Section 6 identifies the existing and planned developments in generation and describes the interconnections both inside Oman and internationally, i.e. PDO and the UAE respectively.

Section 7 presents the demand forecast and compares this with the generation capacity available.

Section 8 discusses transmission system performance and presents the results of load flow and short-circuits studies that show the performance of the transmission system at both peak and minimum demand in each year from 2009 to 2013.

Section 9 identifies the development opportunities for the connection of new demand and new generating plant to the transmission system.

Section 10 presents the areas of the network where network components will be operating above firm capacity during the period 2009 - 2013 and identifies the need for new or renewed derogations from application of the N-1 security criterion, as appropriate.


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2. Introduction 2.1 Licence conditions, Codes and Standards

This Transmission System Five-Year Capability Statement covers the period 2009 – 2013 which has been prepared by the Oman Electricity Transmission Company S.A.O.C. (OETC) in accordance with the requirements set down under Licence Condition 27 of the Electricity Transmission and Dispatch Licence granted to the Company on 1 May 2005 by the Authority of Electricity Regulation (AER). The Licence has been granted under the powers invested in the Authority by Article (2) of the Law for the Regulation and Privatisation of the Electricity and Related Water Sector promulgated by Royal Decree 78/2004.

The purpose of the Statement is to provide up-to-date transmission system data for potential and existing users of the transmission system so they can identify those parts of the transmission system which offer the opportunity for future development. The Statement is required to be updated annually so that users and potential users of the transmission system are furnished with the latest information.

Potential users of the transmission system should be aware of the following main documents that influence the planning and future development of the transmission system infrastructure:

i) The Grid Code for the Sultanate of Oman.

ii) The Electricity Transmission and Dispatch Licence granted to OETC, notably Licence Condition 26, which defines the requirements for the Security Standards and the maintaining of an Efficient and Economic Transmission System.

iii) The approved Transmission Security Standards prepared in accordance with Condition 26 of OETC’s Transmission and Dispatch Licence.

iv) The Statement of Charges for Connection to the OETC Electricity Transmission System.

v) The Statement of Charges for the Use of the OETC Electricity Transmission System.

2.2 System Development since the 2008-2012 Statement

Since the issue of the previous Capability Statement, covering the period 2008 – 2012, the following projects have been completed and are currently being energized in time to meet 2009 system peak demand:

i. Construction of the 132/33 kV Manah to Adam double circuit overhead line and associated Grid Station at Adam.

ii. Upgrading of the 132/33 kV substations at Nizwa and Bahla. The works undertaken were for replacement of the two 63 MVA transformers at Nizwa grid station with two


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125MVA transformers, and replacement of the two 40MVAtransformers at Bahla grid station with two 125MVA transformers.

The following projects are in the final stage and will be in service by the end of 2009.

i. Construction of the132/33kV grid station at Saham and the associated 132 kV transmission system.

ii. Installation of two 125 MVA transformers at Liwa Grid Station. The double circuit 132 kV Wadi Jizzi – Liwa - Shinas transmission line has been already energiesd.

iii. Installation of two 125 MVA transformers at the 220/132 kV Muladah Grid Station.

In addition to the transmission system developments, three new, large industrial customers have been connected directly to the transmission system in the Sohar area:

i. Shadeed Steel connected to the 220 kV SIA-A grid station.

ii. Aromatics industrial load has been connected to the same grid station at 132 kV.

iii. Sharq Steel connected to the 132 kV SIA-A grid station.

2.3 Improvements in the preparation of the Statement

Since the issue of the Transmission System Capability Statement for 2008 – 2012 there have been a number of improvements in the data and the power system modelling upon which the studies that are discussed in the Statement are based. The most significant of these are:

i. The Statement presents complete solutions of all problems reported in the previous Five Year Capability Statement (2008-2012). By the end of the period covered by the present Statement, problems of line and transformer loadings, voltage, and fault current issues will be completely removed.

ii. The OETC demand forecast is based on the data provided by OPWP and distribution companies which should make for a more accurate forecast.

iii. A review of power system model resulted in more appropriate settings being used for the transformers tap changers and the terminal voltages of generating units.


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The improvements in the demand forecast and the power system modelling should result in similar improvements being achieved in the accuracy of the power system studies upon which network development planning is based.


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3. Technical requirements for compliance with the Grid Code and Licence

In order to comply with Condition 26 of the Electricity Transmission and Dispatch Licence the transmission system must be planned, designed and operated to provide a secure, efficient and economic supply of electricity that is of an acceptable quality to its users.

Whilst Condition 26 specifically sets out the Security of Supply requirements, the most important characteristics that determine the quality of supply are frequency and voltage. The requirements for maintaining transmission system frequency and voltage within specified operating limits are set out in the Grid Code, and most clearly defined under conditions ASC4.1 and ASC4.2 respectively of the Ancillary Services Code.

Other issues that relate to the planning of an economic and cost effective transmission system that provides a voltage supply of acceptable quality, such as standardisation of equipment ratings, limitation of system losses, and the control and limitation of disturbing factors that affect the voltage waveform are covered by relevant Omani and/or International Standards.

3.1 System Frequency

In accordance with condition ASC4.1 of the Ancillary Services Code, OETC is required to maintain System Frequency within the following limits:

a) During normal operating conditions, the nominal system frequency of the transmission system shall be 50.00Hz and will be controlled normally between 49.95Hz and 50.05Hz.

b) During exceptional steady state conditions, frequency deviations will not exceed 49.90Hz to 50.10Hz unless disturbed circumstances prevail.

c) Under disturbed conditions, system frequency could rise transiently to 51.50 Hz or fall to 48.0 Hz, but not exceed these limits.

As ASC4.1 points out, the frequency of the total system is responsive to changes in the balance between the active power demand and total available generation capacity. OETC must therefore ensure that sufficient generation capacity and demand is available and connected to the system at all times to respond automatically to active power imbalances and correct any frequency change.


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3.2 System Voltage

In accordance with condition ASC4.2 of the Ancillary Services Code, OETC is required to control system voltage within the following limits:

a) The voltage on the 220 kV and 132 kV parts of the Transmission System at each site with a user connection will remain within the limits of ±10% of the nominal voltage level.

b) The voltage on the 33 kV and 11 kV sides of transmission transformers at Connection Sites with Users will normally remain within the limits of ±6% of the nominal value unless abnormal conditions prevail.

During some system disturbances, such as where short circuits occur, the voltage could collapse transiently to zero at the point of fault until the fault is cleared.

Voltage regulation requires both active and reactive power flows across the transmission system to be carefully controlled. The physical characteristics of the plant on the transmission system also give rise to the generation and absorption of reactive power. Reactive power flows across the transmission system can give rise to substantial voltage differences and it is therefore necessary to maintain reactive power balances between sources of capacity and demand on a “zone” basis.

Unlike frequency, which is consistent across an interconnected transmission system, voltages at different points on an interconnected system are determined by the local sources of demand and capacity, by the prevailing network configuration and by the reactive power flows across the network.

The management of voltage requires control of reactive power and this can be provided by centrally dispatched generators, transformer tap-changers, by the connection of capacitor banks at 33 kV or below, or by means of static compensation.

3.3 Security of Supply

In accordance with Condition 26 of the OETC Transmission Licence the capacity of the Transmission System to transmit electricity shall not be reduced in the event that a single electric line, cable, transformer, circuit breaker and/or associated plant is not in service, provided that during a period in which such single electric line, cable, transformer, circuit breaker and/or associated plant is not in service. The operating voltage of the Transmission System may reduce to any level specified from time to time for such purposes in the Grid Code. In effect, the transmission system should be planned and operated to provide an (N-1) level for security of supply.

The Transmission System taken over by OETC in 2005 had several components that failed to meet the (N-1) criterion, and the Licence recognised that it might take two years, but at system peak 2012 and 2013 all grid stations and overhead lines will meet most of required standards and criteria to bring the whole system into full compliance. To date some of these out of firm situations have been addressed, but equally the steep growth in demand has caused further circuits / transformers to become out of firm. Section 10 summarizes the system grid condition.


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4. OETC System Design and Planning Standards

In addition to the technical requirements of the Transmission Licence and the Grid Code, the principal electrical standards used by OETC in its planning and design of the 220 kV and 132 kV transmission systems are:

4.1 Oman Electrical Standard OES 11

The standard covers the topic “General Specifications for Electrical Materials and Equipment” and defines the worst case conditions for system design purposes by the following parameters:

a) maximum ambient temperature (50˚C)

b) maximum surface temperature for metal surfaces (80˚C)

c) altitude (between sea level and 30 metres above sea level)

d) maximum wind velocity (125km per hour)

e) average annual rainfall (100mm)

f) Maximum relative humidity (100%)

In determining the thermal rating of an overhead line conductor “still air” (i.e. a wind speed of 0.5km per hour) is used as this has the least cooling effect on the conductor. The standard also defines the design parameters for the 132 kV systems in terms of highest voltage (145 kV), design fault level (31.5 kA) and the requirement that the system be solidly earthed. Currently it does not specify corresponding figures for the 220 kV systems.

4.2 Oman Electrical Standard OES 25A and 25B

These standards define the requirements for aluminium conductor steel reinforced and aluminium alloy conductor overhead lines and aluminium alloy stranded conductor overhead lines.


Volume 1 of the standard covers the design requirements for a 132/33 kV, 2 x 125 MVA substation with 132 kV gas insulated switchgear, including the 33 kV switchgear. Volume 2 covers similar requirements for the 132/33 kV, 2 x 63 MVA substation with 132 kV outdoor SF6 switchgear.


The standard covers the design requirements for 132 kV double circuit overhead transmission lines with 400mm2 All Aluminium Alloy Twin Conductors (AAAC) on lattice steel towers that are deployed across much of the 132 kV transmission system.

4.5 Other Standards

In cases where an Omani Standard is not applicable it is usual OETC practice to adopt the appropriate IEC Standard. This particularly applies to the design of the 220 kV transmission systems.


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5. OETC Transmission System

5.1 Existing 220/132 kV Transmission System

The Oman Electricity Transmission Company is authorized to undertake all regulated activities of electricity transmission and dispatch in northern Oman at voltages of 132 kV and above. The existing transmission system has two operating voltages, i.e. 220 kV and 132 kV. It extends across the whole of northern Oman and interconnects bulk consumers and generators of electricity located in the Governorate of Muscat and in the regions of Batinah, Dhahirah, Dakhliyah and Sharquiya.

The transmission system was first established under the Ministry of Housing, Electricity and Water (MHEW) in 1983 and underwent rapid expansion during the 1990s. Consequently much of it has less than 15 years service experience. After the electrical sector was unbundled, the OETC took over the operation of the transmission system on 1 May 2005. The present OETC transmission system consists of:

686 circuit-km of 220 kV overhead transmission line

2837 circuit-km of 132 kV overhead transmission line

12 circuit-km of 220 kV underground cable

14 circuit-km of 132 kV underground cable

5630 MVA of 220/132 kV transformer capacity

6970 MVA of 132/33 kV transformer capacity

Two 220 kV interconnection grid stations

Two 220/132 kV grid stations

Four 220/132/33 kV grid stations

Thirty one 132/33 kV grid supply point substations

The transmission system is interconnected at 220 kV from Al Wasit grid station in Mahadah with the transmission system of the UAE and through this interconnection it will form part of the GCC Grid that links the electricity supply systems of Kuwait, Saudi Arabia, Bahrain, Qatar, the UAE and Oman. This should provide increased security of supply and benefits to the member countries in the form of cost savings from the sharing of reserve capacity and energy resources. The interconnector will be fully energised and brought into service when the Inter-Governmental agreement is signed.

The OETC transmission system is also interconnected with the PDO transmission network at 132 kV via a single circuit overhead line that runs between Nizwa on the OETC system and Nahda on the PDO system. Under normal conditions the power transfer across the interconnection is forecast to be negligible, but in the event of an emergency on either network the interconnection can facilitate a power transfer of up to 60 MW to address the shortfall. The energy transfer between OETC and PDO is managed such that annually the net energy transfer is around zero.

The transmission system is supplied with electricity generated from eight gas-based power stations located at Ghubrah, Rusail, Wadi Jizzi, Manah, Al Kamil, Barka AES & Barka SMN (phase 2) and Sohar.


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In addition the transmission system may be supplied from direct customers, such as Sohar Aluminium and OMIFCO and some more additional generating units have been added at Barka. .

Three Distribution Licence holders, i.e. Muscat Electricity Distribution Company(MEDC), Mazoon Electricity Company (MZEC) and Majan Electricity Company (MJEC), take the bulk of the power transmitted through the main grid, from the 220/132/33 kV and 132/33 kV grid stations.

In addition to the three distribution companies, eleven large private customers are directly connected to the transmission system. Seven of these are connected to the transmission system in the Sohar Industrial Area. The existing private customers are:

220 kV Connections

i. Sohar Aluminium

ii. Shadeed

132 kV Connections

i. Sohar Industrial Estate

ii. Sharq Steel

iii. PDO

iv. OMCO

v. Aromatics

vi. Sohar Refinery

vii. OMIFCO

viii. Rusail Industrial Estate

The following new customers will be directly connected during the period covered by the Statement:

Zoom will be connected with the new 220kV Sur grid station in 2010.

VALE will be supplied via a single circuit connection to the existing SIA-1 substation, with the second circuit connected from the new 220kV SIA-2 station by the end of 2010.

The New Muscat International Airport (Ministry of Transport) will be connected to Airport Heights grid station by 2011.


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In 2008 the system gross peak demand of 3,139 MW which occurred at 15:00 hours on 31 May, an increase of 13.2 % on the 2007 peak demand. During 2008, the energy imported to the system from connected generating plant was 14,017.1 GWh, whilst that exported to private customers and the distribution companies was 13,837.6 GWh, resulting in system energy losses of 179.5 GWh, which equates to an system energy loss of 1.3 %.

5.2 Future System Development Projects

The power system studies presented later in this Capability Statement and used to define the constraints and opportunities that exist on the transmission system over the next five years have been performed on the basis that the committed and planned development projects detailed in Appendix A and summarised below will proceed as planned and be completed to the current schedule.

5.2.1 Projects completed to meet the 2009 peak demand

A geo-schematic diagram of the existing transmission system in 2009 is shown in Figure 1. In section 2.2 of this Statement it was noted that a number of projects had been completed since the 2008 – 2012 Capability Statement was published and that the new works were being energised so that they were available to meet the peak demand in summer 2009. These projects will provide load relief to some of the heavily loaded grid stations and transmission circuits in addition to improving the voltage profile. The projects designed to meet the 2009 system demand include a new grid station at Adam, and the upgrading of the transformers capacity at Nizwa and Bahla.

5.2.2 Projects expected to be completed to meet the 2010 peak demand

Figure 2 shows in geo-schematic form the system development plan to meet the 2010 peak demand.

The new projects scheduled for completion in time to meet the summer peak demand in 2010 are at various stages of development and the major projects for which a consultant has been appointed for construction are:

i) 220/132/33kV Airport Heights grid station

ii) Azaiba Coast grid station (Wave project)

iii) New 132/33 kV grid stations at Wadi Sa’a, and Yitti.

iv) Construction of the132/33kV grid station at Saham and the associated 132 kV transmission system.

v) Installation of two 125 MVA transformers at Liwa Grid Station. The double circuit 132 kV Wadi Jizzi – Liwa - Shinas transmission line has been already energised.

vi) Installation of two 125 MVA transformers at the 220/132 kV Muladah Grid Station.

A number of grid stations cannot maintain (N-1) security of supply and additional transformer capacity is being provided to meet the 2010 peak at MSQ (125MVA), Ghubrah (40MVA), Bousher (125MVA),


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Mawalih (125MVA) and Seeb Main (63MVA) until new grid stations are available to provide load relief in the future. At MSQ and Mawalih the third 125 MVA transformer installed in 2010 will be further reinforced in 2011 as part of the process to establish a second grid station within the boundary of each site. At Bousher, two 125 MVA transformers will be installed to meet peak 2010.

The replacement of overhead lines with underground cables in the Muscat area is also planned for completion in time for the 2010 peak.

5.2.3 Projects expected to be completed to meet the 2011 peak demand


The major transmission system developments that are expected to come into service between the summers of 2010 and 2011 to meet the summer peak in 2011 are planned for the coastal areas to the east of Muscat. Other major projects scheduled for that period are a second 220/132 kV grid supply point in the Sohar Industrial Area (i.e. Sohar Industrial Area ‘B’), a new 220/33 kV grid station at Blue City, the new 220 kV double circuit line between SIS (Seh Al Makarim) and Mahadah (Al Wasit) grid stations and the upgrade of the 132 kV double circuit line between Mahadah (Al Wasit) and Buraimi. In addition, the 220 kV system will be extended into the Al Dahirah area by the construction of a new 220 kV 120 km double circuit overhead transmission line from Mahadah to Ibri, where a new 220/132 kV 2 x 500 MVA grid station will be established. This project will help in transferring the flow of the bulk electric power to the more efficient 220 kV system, thus improving the voltage profiles in this area, and reducing power losses. By summer 2011 the 132 kV single circuit connection between Dank and Al Hail will be upgraded to a double circuit connection. This work is a priority as it is required to meet the (N-1) security requirements and OETC is striving to advance the completion date for this project by combining it in the same tender as the project for upgrading the 132 kV line between Mahadah (Al Wasit) and Buraimi grid stations.

The other major project to be commissioned before the 2011 summer peak that has been floated for consultancy services is the construction of a new 132 kV 30 km double circuit overhead line from Jahloot to Quriyat, with a new 132/33 kV, 2 x 125 MVA grid station to be established at Quriyat.


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5.2.4 Projects expected to be completed in time to meet the 2012 peak demand

In the Muscat area, the main development is the further reinforcement of transformer capacity at MSQ, Bousher and Mawalih. The addition of a fourth 125 MVA transformers will enable OETC to establish two grid stations on each site by converting the temporary transformers installed for 2010 into permanent fixtures. The new grid stations (i.e. MSQ-2, Bousher-2 and Mawalih-2) will provide load relief for each of the existing grid stations. These projects are expected to be completed to meet the 2012 peak demand.


The main investment to meet the 2012 peak is in the extension of the 220 kV transmission system from Barka (i.e. Barka – 2) to Misfah and on to Wadi Adai where the grid station would be upgraded 220 kV. The 220 kV transmission system will be extended from Misfah to Jahloot and on to Sur, a total distance of approximately 300 km. To cater for future growth in demand, consideration is being given to constructing these lines for operation at 400 kV, but operating initially at 220kV. This option will be discussed with the consultant in due course.

The other major projects planned for completion before summer 2012 are the new 220/132 kV, 2 x 500 MVA grid stations to be established at Sur, Wadi Adai and Jahloot. The consultancy services for these projects have been floated and the work is in progress. The new IPPs at Barka and Sohar will be connected to the 220 kV transmission system through new 220 kV GIS substations at Barka (Barka-2) and Sohar (SPS-2). SPS-2 will be connected to SIS (Sohar Interconnector Station) at 220 kV via a double circuit connection over a distance of around 40 km. However, part of the route near the power station will have to be run underground because of expected difficulties in obtaining a right of way for another overhead line circuit. Other projects that are required to meet the 2012 peak are the construction of new 132/33 kV grid stations at Yankit, Al Amerat, Ghala, Nizwa University, Al-Kamil, Al-Roudah, Multaqa (Sohar area) Free Zone and Buraimi-2Further upgrading projects are also required at Mudaibi, Izki, Rustaq and Sumail.

5.2.5 Projects expected to be completed in time to meet the 2013 peak demand

Figure 5 shows in geo-schematic form the system arrangement to meet the 2013 peak demand. Major projects expected to be connected to the transmission system by summer 2013are construction of new 132/33 kV grid stations at Al Khaudh (Muscat), Barka Main - 2which is required to supply the Blue City demand and Dreez which will be connected to Ibri. Further upgrading is planned for the Manah - Nizwa 132kV lines and the Mahadah 132/33 kV transformers from 30MVA to 63MVA.

To address the fault level issues at Ghubrah power station a number of design options are under evaluation to determine the most appropriate long term solution for the site.


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The ambitious nature of the development programme planned for the period 2009 - 2012 is recognised and for the purpose of this Statement a conservative view has therefore been taken for developments in 2013 on the assumption that some projects may suffer slippage due to unforeseen circumstances and completion that was planned for 2012 could slip into 2013.

5.3 Summary

Table 1 in the Executive Summary has summarised the development plans for the OETC Transmission System on a project by project basis at the time of this Statement. The table identifies the projects to which OETC are already committed and those projects that are considered likely to proceed.

The power system studies presented later in this Capability Statement to show the expected performance of the transmission system over the period 2009-2013 have been performed on the basis that the committed and planned development projects in Table 1 and detailed in Appendix A will proceed as planned and be completed on schedule. The system studies are used to identify areas of the transmission system where there are opportunities for connecting new demand and new generation and where constraints should be applied to further development.


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Figure 1: OETC existing transmission system in 2009.


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Muscat

Al Batinah South

Al Batinah North

Ad Dhahirah

Al Wusta

UAE

KSA

Al Dhahirah

Alkamil

JBB Ali

Sur

OMIFCOMudhiribMudaybi

Adam

Manah

Nizwa

Bahla

NahadaPDO

Ibri

Alhayl

Dank

Wadi Al Jizzi

LiwaShinas

Sohar

SIS

SPSSIA-1

SRC

Saham

Khaburah

MIS

Muladah

Rustaq

Sumail

Izki

Filaj

BarkaBarka Main

Mabailah Rusail

Seeb Main

Mawalih

Bawsher

Ghoubrah

MSQ Wadi Adai

AlFalaj

Wadi Kabir

3km

73km

55km

51km

60km

43 km

3 km

8.2km

35 k

m

28km

8 km

8 km

10km

15km

61km

32km

19.7

km

67km

120km

37km

33 km

24km

28km

40km

12 km 43km

64km

6.3

km

121 km

0.5km

52km

3km

25km

Jahloot

G

Auha

Yitti

47km

40 km

Aluminium

13kmSmelter

2.2k

m

47km

28km

Airport High

10km

Wave

30 km

43km

Wadi Sa’a

G

G

Oman GulfMhadah(Alwasit)

28 km

G

G

ARCURIA x 2

Bureimi33km

63 km

46 km

28 km

20 km

6 km

54 km

54 km

YEW x 2

YEW x 2

YEW x 2

ELM x1

YEW

x 2225 AAAC

225 AAAC

YEW x 2

225 AAAC

YEW x 2

YEW x 2

YEW x 2

YEW x 2

YEW

x 2

YEW

x 2

AR

CU

RIA

x 2

ARCURIA x 2

ARCURIA x 2

YEW x 2

2000

mm

2 1c

Cu

XLPE

CABL

E

2500

mm

2 XL

PE C

AB

LE

G

Legend

220kv Grid Station

220kv Double Circuit

220kv Double Circuit Cable

132kv Grid Station

132kv Double Circuit 132kv Single Circuit wooden pole

Power Station41 km

2500mm2 XLPE

CABLE3km

G

ARCURIA x 2

11 k

m

YEW x 2

YEW x 1 240 ZTAC

IR

225 AAA

C

33 km

YEW x 2

YEW x 2

YEW x 2

YEW x 2

YEW

x 2

YEW x 1

YEW x 2

ELM

x1

YEW x 2 YEW x 2

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Figure 2: Expected development by 2010.


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Al Batinah South

Al Batinah North

Ad Dhahirah

Al Wusta

UAE

Al Dhahirah

Muscat

Alkamil

JBB Ali

Sur

OMIFCOMudhiribMudaybi

Adam

Manah

Nizwa

Bahla

NahadaPDO

Ibri

Alhayl

Dank

BureimiWadi Al

Jizzi

LiwaShinas

Sohar

SIS

SPS

SIA-1

SRC

Saham

Khaburah

MIS

Muladah

Rustaq

Sumail

Izki

Filaj

Barka

Barka Main

MabailahRusail

Seeb Main

Mawalih

Bawsher

Ghoubrah

MSQWadi Adai

AlFalaj

Wadi Kabir

Mutrah

3km

73km

55km

51km

60km

43 km

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8.2km

28km

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61km

32km

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120km

37km

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Quriat

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Blue City

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43km

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45 km

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Figure 3: Expected development by 2011


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Figure 4: Expected development by 2012


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55km

28km

8km

19.7km

54 km

5km

Qurum

YEW x 2

39.2km

51.3km

YEWx 2

ARCURIAx 2

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YEW x 2

ARCURIAx 2

10 km2500mm2 XLPE

22 kmYEW

x 2

10km

Figure 5: Expected development by 2013.


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6. Existing and Planned Developments in Generation

6.1 Existing generation

The OETC transmission system is supplied by eight gas-based power stations:

• Ghubrah, Rusail and Barka (AES & SMN) in the Muscat region (Muscat Electricity Distribution Company supply area).

• Sohar (Phase 1) and Wadi Jizzi in North Batinah (Majan Electricity Company supply area).

• Manah in Dakhilya region and Al Kamil in Sharqiyah region (Mazoon Electricity Company supply area).

The eight power stations are described briefly below:

a) Ghubrah Power and Desalination Plant

The initial development of Ghubrah Power Station started in 1976 and the installation of the power and desalination plant was accomplished in six phases, four of which included the commissioning of new generating units. The layout of the site is complex and is a mixture of thirteen gas turbines and four steam turbines of various ratings. The net generation capacity is approximately 481.6 MW. However, 500 MW of new generation is planned to be in service at Ghubrah in 2013. This will contribute to improving voltage levels in the Muscat area.

b) Rusail Power Station

Rusail Power Station is located in the Rusail Industrial Estate. The power station has eight Frame 9E gas turbines installed and operating in open-cycle. The gross site rating of the units varies from 81 MW to 96 MW. The units were installed progressively between 1984 and 2000. The net generation capacity of the power station is approximately 684 MW.

.

c) Wadi Jizzi Power Station

Wadi Jizzi Power Station comprises ten Frame 6B gas turbines (with gross site ratings in the range of 27.6 - 30.2 MW) and one Frame 5P gas turbine (17.8 MW gross site rating) where are all operating in open cycle. The units were installed progressively from 1982 and the net generation capacity is approximately 290 MW.


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d) Manah Power Station

Manah Power Station is owned by the United Power Company and when commissioned in 1996 was the first Independent Power Project (IPP) to be built in Oman. The station comprises three GE PG6541B gas turbines (each site rated at 26.7 MW) and two GE PG9171E gas turbines (site ratings of 95 MW and 97 MW respectively). The net generation capacity is approximately 279 MW.

e) Al Kamil Power Station

Al Kamil Power Station is another IPP and was commissioned in 2002. The station comprises three GE PG9171E gas turbines (site rating 94 MW) operating in open cycle and the net generation capacity is approximately 282 MW.

f) Barka Power and Desalination Plant

There are two power stations in Barka:

1. The Barka Power and Desalination Plant was commissioned in 2003 by AES Barka and was developed as an Independent Water & Power Plant (IWPP). The power plant comprises two Ansaldo V94.2 gas turbines (manufactured under licence from Siemens) and a steam turbine operating in combined cycle. The net generation capacity is approximately 434 MW.

2. The new Barka SMN plant (Barka – Phase 2) is an Independent Water & Power Plant (IWPP) and is due to be commissioned in 2009. There will be three gas turbines of 131 MW capacity each and two steam turbine of 161 MW capacity each. The total expected net generation capacity is approximately 683 MW.

g) Sohar Power and Desalination Plant

Sohar Power and Desalination Plant was also developed as an IWPP by the Sohar Power Company. The plant consists of three Siemens V 94.2 gas turbines (Ansaldo Extraction Type), a steam turbine and four desalination units. The three gas turbines came into service during summer 2006. The net power plant capacity is 590 MW.

Table 2 lists on a yearly basis the existing and committed future generating capacity over the period 2009 - 2013. The table presents the gross and net maximum capacity for each generating unit at each power station and takes account of the desalination load where appropriate.


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Table 2: Existing and committed future generating capacity Power Station Net Generating Capacity (MW)

Type Unit 2009 2010 2011 2012 2013 Al-Ghubrah Power & Desalination Plant Steam Turbine ST 3 8.3 0.0 0.0 0.0 0.0 Steam Turbine ST 4 39.2 39.2 39.2 39.2 0.0 Steam Turbine ST 5 31.8 31.8 31.8 31.8 31.8 Steam Turbine ST 6 30.2 30.2 30.2 30.2 30.2 Gas Turbine GT1 17.8 17.0 17.0 17.0 0.0 Gas Turbine GT2 17.1 17.0 17.0 17.0 0.0 Gas Turbine GT3 17.8 17.0 17.0 17.0 0.0 Gas Turbine GT4 16.4 0.0 0.0 0.0 0.0 Gas Turbine GT5 15.4 0.0 0.0 0.0 0.0 Gas Turbine GT6 17.1 0.0 0.0 0.0 0.0 Gas Turbine GT7 17.3 0.0 0.0 0.0 0.0 Gas Turbine GT8 17.2 0.0 0.0 0.0 0.0 Gas Turbine GT9 17.1 0.0 0.0 0.0 0.0 Gas Turbine GT10 27.4 27.4 27.4 27.4 27.4 Gas Turbine GT11 27.4 27.4 27.4 27.4 27.4 Gas Turbine GT12 95.7 95.7 95.7 95.7 95.7 Gas Turbine GT13 96.4 96.4 96.4 96.4 96.4 Gen sub-total 509.6 398.9 398.9 398.9 308.8 Desalination load 28 28 28 28 20 Net Generation 481.6 370.9 370.9 370.9 288.8

Rusail Power Plant Gas Turbine GT 1 80.6 80.6 80.6 80.6 80.6 Gas Turbine GT 2 80.6 80.6 80.6 80.6 80.6 Gas Turbine GT 3 80.6 80.6 80.6 80.6 80.6 Gas Turbine GT 4 83.9 83.9 83.9 83.9 83.9 Gas Turbine GT 5 83.9 83.9 83.9 83.9 83.9 Gas Turbine GT 6 83.9 83.9 83.9 83.9 83.9 Gas Turbine GT 7 95.9 95.9 95.9 95.9 95.9 Gas Turbine GT 8 94.9 94.9 94.9 94.9 94.9 Net Generation 684.4 684.4 684.4 684.4 684.4

Wadi Al-Jizzi Power Plant Gas Turbine GT3 17.6 17.6 17.6 0.0 0.0 Gas Turbine GT4 27.8 27.8 27.8 27.8 27.8 Gas Turbine GT5 23.6 23.6 23.6 23.6 23.6 Gas Turbine GT6 27.1 27.1 27.1 0.0 0.0 Gas Turbine GT7 26.0 26.0 26.0 0.0 0.0 Gas Turbine GT8 26.6 26.6 26.6 26.6 26.6 Gas Turbine GT9 26.7 26.7 26.7 26.7 26.7 Gas Turbine GT10 27.4 27.4 27.4 27.4 27.4 Gas Turbine GT11 28.3 28.3 28.3 28.3 28.3 Gas Turbine GT12 29.3 29.3 29.3 29.3 29.3 Gas Turbine GT13 30.0 30.0 30.0 30.0 30.0 Net Generation 290.2 290.2 290.2 219.5 219.5


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Table 2 (continued): Existing and committed future generating capacity Power Station

Net Generating Capacity (MW)

Type Unit 2009 2010 2011 2012 2013 Manah Power Plant Gas Turbine GT1A 29.1 29.1 29.1 29.1 29.1

Gas Turbine GT1B 29.2 29.2 29.2 29.2 29.2 Gas Turbine GT1C 28.9 28.9 28.9 28.9 28.9 Gas Turbine GT2A 97.0 97.0 97.0 97.0 97.0 Gas Turbine GT2B 95.0 95.0 95.0 95.0 95.0

Net Generation 279.3 279.3 279.3 279.3 279.3 Al Kamil Power Plant Gas Turbine GT 1A 94.1 94.1 94.1 94.0 94.0

Gas Turbine GT 1B 94.1 94.1 94.1 94.0 94.0 Gas Turbine GT 1C 94.1 94.1 94.1 94.0 94.0

Net Generation 282.3 282.2 282.2 282.1 282.1 Barka I Power & Desalination Plant Gas Turbine GT 1 119.5 119.5 119.5 119.5 119.5

Gas Turbine GT 2 119.5 119.5 119.5 119.5 119.5 Steam Turbine ST 220 220 220 220 220 Gen sub-total 459 459 459 459 459 Desalination load 25 25 25 25 25 Net Generation 434 434 434 434 434

Sohar Power & Desalination Plant Gas Turbine GT 1 134 134 134 134 134 Gas Turbine GT 2 134 134 134 134 134 Gas Turbine GT 3 134 134 134 134 134 Steam Turbine ST 220 220 220 220 220 Gen sub-total 621 621 621 621 621 Desalination load 31 31 31 31 31 Net Generation 590 590 590 590 590

Barka II Power & Desalination Plant Gas Turbine GT 1 131 130 130 130 129 Gas Turbine GT 2 131 130 130 130 129 Gas Turbine GT 3 131 130 130 130 129 Steam Turbine ST1 161 161 161 161 161 Steam Turbine ST2 161 161 161 161 161 Gen sub-total 714 712 711 711 710 Desalination load 31.2 31.2 31.2 31.2 31.2 Net Generation 683 681 680 680 679


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6.2 Planned Retirements of Existing Plant There are a number of planned retirements of the existing units in 2010 and further retirements are planned before 2012. The planned retirements are as follows:

a) Ghubrah Power and Desalination Plant

In 2010, it is planned to retire the existing units ST3 (8.3 MW) and GT4-9 (100.5 MW). Also, in 2013 ST4 (39.2 MW) and GT1-3 (51 MW) will be retired.

b) Wadi Jizzi Power Station

The two Frame 6B gas turbines and the Frame 5P gas turbine have had their retirement delayed until 2012, when the gross generation capacity at Wadi Jizzi will be reduced from 290 MW to 219 MW.

6.3 Planned future generation (2009 – 2013)

There are four main generation developments planned for the period 2009 to 2013:

a) Barka SMN (phase 2) Power Station (714 MW)

During 2008 three Siemens V 94.2 gas turbines (Ansaldo Extraction Type) were declared for early commissioning, this gave an additional 392 MW of gross generating capacity in the system. In addition two steam turbines are due in service to meet the 2009 peak with a gross generating capacity of 322 MW, giving a total gross generation capacity of 714 MW with desalination.

This generation is essential to minimize the shortfall in contracted generation and will also provide reactive power for voltage support during the summer 2009 period.

b) New IPP at Barka (phase 3) Power Station (650-750MW)

Due to the expected future shortfall in generation OPWP has instigated planning work for a third power plant at Barka. This independent power plant (IPP) will be designed to have a generating capacity of between 650MW and 750MW (final capacity dependent on the results of the OPWP tender evaluation). For the purposes of preparing this Capability Statement OETC has assumed that the lowest capacity of 650 MW is connected in order to represent the worst case scenario for the system as a whole, but is making plans to connect the larger capacity if that is selected. The generation development assumed at Barka-3 in the studies used in this Capability Statement are for the first stage development generating 375 MW in 2011 and second stage 275 MW in 2012. Barka - 3 is currently at the consultancy stage, with the total plant capacity and size of the individual units still to be decided.

c) New IPP at Sohar (phase 2) Power Station (650-750MW)

OPWP has also taken action to instigate planning work for a second power plant at Sohar where there is already a large industrial demand and projections of future load growth show that additional power generation is required in the area. The new IPP will be introduced in two stages, like Barka – 3. For the purposes of preparing this Capability Statement OETC has assumed that the lowest capacity of 650 MW


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is connected in order to represent the worst case scenario for the system as a whole, but is making plans to connect the larger capacity if that is selected. The generation development assumed at Sohar-2 in the studies used in this Capability Statement are for the first stage increasing system generating capacity by 375MW in 2011 and second stage a further 275 MW in 2012. The project is currently at the consultancy services stage.

d) New Ghubrah IWPP

The first phase of a new combined cycle power plant with a nominal capacity of 500 MW is planned for 2013 at Ghubrah.

Table 3 summarises the net capacity of the additional future generating plant over the period 2009 to 2013 assumed in this Capability Statement. The table shows that an additional 1800 MW of generating capacity from these plants is planned to be in service before the 2013 peak.

Table 3: New Contracted and Planned Generating Capacity

Power Station Net Generating Capacity (MW)

2009 2010 2011 2012 2013

Barka Phase III

Phase 1 375 375 375

Phase 2 275 275

Net Generation 375 650 650

Sohar Phase II

Phase 1 375 375 375

Phase 2 275 275

Net Generation 375 650 650

New Ghubrah IWPP

Phase 1 500

Net Generation 500


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6.4 Non-Contracted Generating Capacity There are a number of private industrial customers directly connected to the transmission system that either operate or plan to operate their own on-site generation. The largest generating plant among these is Sohar Aluminium, which may export up to 220 MW. In addition, the UAE interconnected system is expected to provide an import/export capacity of up to 300 MW in future.

The interconnected system and the private customer generating plants can with the customer’s agreement be made available to support the contracted generation under emergency conditions in order to avoid power cuts in northern Oman because of a shortfall in the contracted generation. These generators are termed “non-contracted” generating plants. Table 4 shows the non-contracted generating capacity

Table 4: Non-Contracted Generating Capacity.

Power Station Net Generating Capacity (MW)

2009 2010 2011 2012 2013

UAE Interconnector 170* 170* 300* 300* 300*

PDO 60 60 60 60 60

Sohar Aluminum 230 400 # 400 # 400 # 400 #

Sohar Refinery Company (SRC). 35 35 35 35 35

Oman Cement Company (OCC). 5 0 0 0 0

Oman Mining Company (OMCO). 20 20 20 20 20

Net Generation 520 685 815 815 815

*These values are provisional.

# Updated contact with OPWP

Table 5 summarises the Centrally Dispatched Net Generation Capacity available over the period 2008 – 2013, with the new generation at Barka Phase III, Sohar II and the new Ghubrah 500 MW plant in service with the planned retirement of generating units at Al Ghubrah and Wadi Al-Jizzi taken into account.


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Table 5: Centrally Dispatched Generating Capacity on OETC Transmission System

Power Stations 2008 2009 2010 2011 2012 2013 Al-Ghubrah Power & Desalination Plant 475 509.6 398.9 398.9 398.9 308.8 Rusail Power Plant 684 684.4 684.4 684.4 684.4 684.4 Wadi Al-Jizzi Power Plant 288 290.2 290.2 290.2 219.5 219.5 Manah Power Plant 279 279.3 279.3 279.3 279.3 279.3 Al Kamil Power Plant 282 282.3 282.2 282.2 282.1 282.1 Barka I Power & Desalination Plant 434 459 459 459 459 459 Sohar I Power & Desalination Plant 585 621 621 621 621 621 Barka II Power & Desalination Plant 714 712 711 711 710 Barka III Power & Desalination Plant 375 650 650 Sohar II Power & Desalination Plant 375 650 650 New Al Ghubrah Power Plant 500

Total Generating Capacity (MW) 3027 3839.9 3727.2 4476.2 4955.5 5364.4 Retirements and Degradation - - -112.7 -113.7 -184.4 -274.5

6.5 Interconnections

6.5.1 Interconnection with the UAE and the rest of the GCC Grid The 220 kV transmission interconnection with the United Arab Emirates (UAE) was completed in the first quarter of 2007. The interconnection connects Mahadah Grid (Al Wasit) to Al Oha Grid Station in Al Ain in the UAE. However, contractual issues have to date prevented the interconnection from coming into service. Nevertheless it is reasonable to expect that these will be resolved and that the interconnection can provide power to Oman in the event of a possible shortfall in generation.

The interconnection is via a 220 kV double circuit overhead transmission line with twin “Arcuria” (2 x 700mm2) AAAC conductors per phase, with a conductor thermal rating of 2000 Amps (i.e. 762 MVA per circuit).


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In the longer term the principal technical benefit to be obtained from connecting Oman to the GCC Grid is in a reduced spinning reserve requirement, which will be shared between the members of the GCC Grid. However, in the shorter term the interconnection will allow Oman to import power from the GCC Grid to meet any potential generation shortfall. An import capacity of up to 200 MW will be available from the GCC Grid according to OPWP in its Seven-Year Statement (2009-2015).

6.5.2 Interconnection with PDO

The OETC transmission system is interconnected with the transmission system of the Petroleum Development Oman (PDO) which provides electricity to its sites across the central region of Oman for the purpose of oil exploration and development. . The interconnection is made at 132 kV between Nizwa grid station on the OETC system and Nahda 132 kV substation on the PDO 132 kV network by a 67 km overhead line with a single “Elm” (175mm2 AAC) conductor per phase and a circuit rating of 357 Amp (i.e. 82 MVA). The over head line is owned by PDO. Under normal conditions the power transfer between the two networks is allowed to float around zero MW, with power transfers balanced out over a period. The interconnection essentially allows OETC and PDO to share spinning reserve and supply limited power to each other in emergency conditions on either system.

6.6 Economic Dispatch

The Load Dispatch Centre of OETC dispatches generation based on its availability as stated by the Generator on a day-ahead basis, and its price as listed by the Oman Power and Water Procurement Co. (OPWP).

Under circumstances where the system frequency is seen to stray outside the specified limits, LDC will issue dispatch instructions to Generators based on Merit Order to rectify the situation.

6.7 Spinning Reserve The Load Dispatch Centre strives to maintain a spinning reserve equal to the rating of the largest generating unit connected to the transmission system, namely the 220 MW steam turbine generators at Barka. This figure might be reviewed by OPWP after introducing the new IPPs at Barka and Sohar if a larger unit size is adopted.


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7. Demand Forecast and Generation Availability

7.1 System Demand Maximum demand usually occurs on the OETC transmission on a weekday in the months of June or July, during a period of particularly high temperature and humidity. The growth in air conditioning equipment in domestic and commercial premises in Oman has ensured that peak demand usually occurs during the afternoon. Figure 6 shows the 24-hour demand profile for the transmission system on the day of the 2008 system peak demand (i.e. 31 May 2008). The 2008 system peak demand of 3,139 MW was recorded at 15:00 hours by the OETC Load Dispatch Centre. The historic growth in system peak demand over the period (2003-2008) is shown in Table 6.

Figure 6: OETC System Load on 2008 Peak Day (31/5/2008)

Table 6: Historic growth in peak demand and transmission losses (2003 – 2008)

*estimated

2003 2004 2005 2006 2007 2008

System Max Demand (MW) based on gross demand 2232 2371 2495 2613 2773 3139

Annual growth rate based on gross demand (%) --- 6.2 5.2 4.7 6.1 13

System Max Demand (MW) based on net demand 2139 2294 2395 2505 2662 3033

Transmission System Losses (MW) at system peak 35 38* 40 37 40* 61

Transmission System Losses (%) 1.64 1.66 1.67 1.47 1.50 2.0


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Minimum demand generally occurs on the transmission system during night-time in December/January when electricity consumption in all major load categories is reduced. In 2008 the system minimum demand was 586 MW and this occurred on 18 January 2008 at 04:00 AM. The 2008 system minimum demand was 18.67 % of the 2008 system peak demand. The 24-hour profile for the day of minimum demand is shown in Figure 7.

Figure 7: OETC System Load on 2008 Minimum Load Day (18/1/2008)

7.2 Demand Forecast

Under clause 3 of Condition 27 of the OETC Transmission and Dispatch Licence it is stated that:

“The Licensee shall, when preparing the Capability Statement …. ensure that the forecasts of electricity flows and loading on each part of the Transmission System are consistent with the prevailing electricity demand forecasts prepared and used by the OPWP for the purposes of the Statement of future capacity requirements required by Condition 5 of the OPWP licence”.

The OPWP demand forecast is based on data supplied to them by the three distribution companies (i.e. Muscat EDC, Mazoon EC and Majan EC) and includes demand forecasts for the major customers that are, or will be, directly connected to the OETC transmission system at either 220 kV or 132 kV in their respective supply areas. The distribution company forecasts are provided in terms of:

a) The growth in major industrial loads

b) The growth in major tourism loads

c) The annual domestic growth.

0

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d) The growth in other major loads

The forecasts supplied to OPWP relate to the totals for each distribution company and do not indicate how this load is allocated to the individual grid supply points. The forecast data provided to OPWP does, however, include major future connections and the cumulative increase in load over the seven-year period covered by the OPWP Statement. OPWP has then reviewed this data and taken a view as to the probability that the individual schemes will proceed and if so, the rate at which their load will develop. The outcome of this review is presented as the OPWP Demand Forecast in its Seven-Year Statement.

The OPWP Demand Forecast was therefore taken as the starting point for developing the demand forecast presented in this OETC Capability Statement. The OETC forecast, however, is required to identify the future demand at individual grid stations at the system peak for each year over the period 2009 to 2013, since this information is required for the power flow studies.

Analysis of the demand forecast data used by OPWP in developing its Seven-Year Statement (2008 – 2014) identified basic annual percentage rates of 5, 6 and 7 % respectively for the growth in peak demand (excluding major projects) in the Mazoon EC, Muscat EDC and Majan DC supply areas. These rates have been applied to the grid station demands in the respective supply areas as noted by the OETC Load Dispatch Centre at the 2008 system peak (i.e. on 31 May, 1500hours). The demand associated with major industrial and tourism projects as assessed by OPWP (with diversity taken into account) was then superimposed on to the steady growth in the basic demand to produce a basic forecast. Section 5 identified a number of new grid supply points that are scheduled to come into service to meet the summer peak demands from 2009 onwards. These gird stations will provide load relief to the more heavily loaded grid stations and in some cases supply new loads.

The distribution companies’ plans for load transfers from existing grid stations that are heavily loaded to new grid stations are one of the most important elements of the demand forecast. Table 7 summarises the load transfers adopted in the studies based on consideration of what is required and what OETC has considered viable. OETC, however, acknowledges that this aspect of the forecast needs to be improved in future and believes that it would be helpful if the distribution companies were to give greater consideration to feasible load transfers when planning their distribution networks, and to develop proposals for load transfers in coordination with OETC.


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Table 7: Expected Load Transfers between Grid Supply Points (2009-2013).

From Grid Station To Grid Station Load Transfer (MW)

2009 2010 2011 2012 2013 Muscat Area

Wadi Kabir Muttrah 50 Al Falaj Wadi Kabir 20 Al Falaj Muttrah 50

MSQ Qurum 40 Jahloot Quriat 30

Bousher-A Bousher-B 50 Bousher-A Air Port Heights 40 Bousher-A Ghala 30 Bousher-B Ghala 40 Bousher-B MSQ-2 10

Rusail Misfah 40 Ghoubrah Ghoubrah-Temp. 30 Wadi Adai Qurum 28.4 Wadi-Adai Amerat 40

MSQ MSQ-2 60 Jahloot Yitti 5 Jahloot Amerat 30

Seeb Main Seeb Main Temp. 40 Mawalih Mawalih-2 60 20 Mawalih Rusail 20

Seeb Main AlKhoudah 30 Seeb Main Mawalih-2 10 Mawalih AlKhoudah 30

Total 20 300 273.4 150 60

Mazoon Area Izki Nizwa University 20

Barka Main Nakhal 41 30 Mouladah MIS 80 Mouladah Barka Main-2 70 Mudhabi Rawdah 15

Mu Mudhairib Al Kamil 40 JBB Ali Al Kamil 20 40

Sur Aijah(Sur-2) 40 Khaborah Saham

Nizwa Adam 20 Nizwa Nizwa University 50

Total (MW) 20 80 41 215 110


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Continue Table 7: Expected Load Transfers between Grid Supply Points (2009-2013).

Majan Area Ibri Dreez 20 Al Hail Dreez 20 Buraimi Buraimi‐2 50 Shinas Liwa 45 Sohar Sohar Temp. 27 Sohar Liwa 30 Sohar Saham 40 Sohar Free Zone 60 Khabourah Saham 60

Total 27 175 0 110 40


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7.3 System Maximum Demand Forecast and Generation Availability Table 8 shows the grid station demand forecast for the period 2009 – 2013 with prospective load transfers taken into account and the forecast developed in accordance with the methodology described in sub-section 7.2.

Table 8: OETC Transmission System Demand Forecast by Grid Station

Grid Station Total Demand by Grid Station 2008 2009 2010 2011 2012 2013

MUSCAT Rusail 108.3 114.8 141.7 110.2 116.8 121.5 Ghubrah 33 77.5 84.9 58.7 64.8 99.1 103.5 Ghubrah Temporary 30 30 Wadi Adai 117.4 119.2 120.9 94.4 85.8 87.1 Wadi Kabir 123.8 149.4 151.6 104.6 107.8 109.4 Al Falaj 155.2 144.5 148.8 103.3 105.4 107.0 MS Qaboos 156.0 163.0 116.9 82.7 84.0 85.2 Jahloot 86.0 94.2 101.2 76.9 53.9 58.0 Mawalla 151.6 161.5 91.1 77.1 82.1 87.4 Seeb Main 100.1 109.6 65.1 108.3 103.8 78.9 Seeb Temporary 40.0 Bousher-A 181.3 188.6 108.0 113.4 87.9 92.3 Mobella 66.0 72.3 78.1 86.2 91.4 96.0 Muttrah 100.0 104.0 106.1 Airport Heights 50.0 55.3 61.9 67.8 Qurum 60.0 93.9 101.9 Bousher-B 110.0 101.1 65.1 67.7 Azaiba Cost (Wave Project) 30.0 33.2 36.2 39.0 Yitti 35.0 38.7 42.9 48.1 Quriat 30.0 32.8 36.7 Yankit 33.0 35.5 Misfah 80.0 81.0 90.7 Ghala 70.0 79.8 Al Khoud 60.0 Amerat 70.0 96.3 Mawallah-2 60.0 80.0 96.4 70.3 MSQ-2 60.0 80.0 89.6 98.6 Transport (Muscat area) 20.0 20.0 20.0

Total (MW) 1323.2 1401.8 1597.1 1730.1 1914.7 2044.7 % Growth - 5.9% 13.9% 8.3% 10.7% 6.8%


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Table 8 (continued): OETC Transmission System Demand Forecast by Grid Station

MAZOON 2008 2009 2010 2011 2012 2013 Barka Main 144.0 157.0 169.5 135.3 88.0 89.3 Muladah 195.0 204.8 134.0 140.7 149.8 85.8 Izki 50.0 57.0 65.0 72.8 57.5 64.7 Nizwa 103.8 98.3 112.1 125.6 83.7 94.2 Nizwa University 70.0 78.8 Bahla 57.0 65.0 74.1 83.0 88.4 99.4 Mudhaibi 55.0 62.7 71.5 80.1 70.3 79.0 Mudhairib 80.0 91.2 104.0 116.4 84.0 94.5 JBB Ali 81.0 92.3 105.3 117.9 105.6 74.0 Sur 80.0 91.2 104.0 116.4 84.0 94.5 Sumail 60.0 68.4 78.0 87.3 93.0 98.1 Rustaq 72.0 82.1 89.5 95.3 101.5 105.5 Adam 20.0 22.8 25.5 27.2 30.6 MIS 80.0 89.6 95.4 103.1 Blue City 20.0 50.0 120.0 Alrawdah 15.0 15.2 Al Kamil 30.0 70.3 Sur-2 40.0 40.4 Nakhal 41.0 71.4 102.1 Barka Main-2 70.0 Zoom load (Sur area) 70.0 70.0 70.0

Total (MW) 977.8 1089.9 1209.6 1416.8 1474.8 1679.6 % Growth - 11.5% 11.0% 17.1% 4.1% 13.9%


Page | 55

Table 8 (continued): OETC Transmission System Demand Forecast by Grid Station

MAJAN 2008 2009 2010 2011 2012 2013 Ibri 78.7 90.5 95.9 108.9 117.6 103.5Dank 16.6 19.1 19.9 22.6 24.5 26.4 Al Hayl 26.7 30.7 32.1 36.4 39.3 22.5 Mahadah(Al Wasit) 19.2 22.1 24.0 27.2 29.4 31.7Bureimi 83.8 96.4 110.8 125.8 85.8 92.7 Shinas 66.0 75.9 37.0 42.0 45.3 48.9 Liwa 75.0 85.1 91.9 96.5Sohar 178.3 178.0 123.2 134.3 84.3 88.6 Sohar Temporary 27.0 27.4 27.8 28.2 28.7 Khaborah 126.0 126.0 77.3 85.1 88.9 92.9Saham 83.0 94.2 98.0 99.9 SIA-1 75.5 86.8 88.1 89.4 90.8 92.2 Wadi Sa'a 18.0 30.0 40.0 50.0Dreez 46.2 Moltaqa 87.2 88.1 Free Zone 70.0 74.2Bureimi-2 70.0 75.6 SSSRM connected to 132kV(SIA-1) 30.0 30.0 50.0 50.0 50.0 Shadeed connected to 220(SIA-1) 50.0 50.0 120.0 120.0 120.0CVRD(VALE) connected to 132kV(SIA-2) 70.0 120.0 140.0 Garamco(132 Liwa) 20.0 30.0 30.0 30.0

Total (MW) 670.8 832.5 911.8 1178.8 1411.3 1498.6 % Growth - 24.1% 9.5% 29.3% 19.7% 6.2%

Muscat EDC 1323.2 1401.8 1597.1 1730.1 1914.7 2044.7 Mazoon EC 977.8 1089.9 1209.6 1416.8 1474.8 1679.6 Majan EC 670.8 832.5 911.8 1178.8 1411.3 1498.6

Total (MW) 2971.8 3324.2 3718.5 4325.8 4800.8 5222.9


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Table 9 compares the total demand forecast with the available generating capacity from Table 5 and shows that with no additional non-contracted generating capacity connected and zero power import over the cross-border interconnection with the UAE, then there will be a shortfall in generating capacity in Oman in 2010, 2012 and 2013 should the planned retirements at Ghubrah and Wadi Jizzi go ahead as planned.

Table 9: Comparison of Demand Forecast with Available Generating Capacity including Planned Retirements


Total Generating Capacity (MW) 3027 3839.9 3727.2 4476.2 4955.5 5364.4 Demand Forecast (MW) 2972 3324 3718 4326 4801 5223

Surplus/Deficit Capacity (MW) 55 516 9 150 155 141

Retirements - - -112.7 -113.7 -184.4 -274.5

Table 10 compares the total demand forecast with the available generating capacity from Table 5 and shows that with the non-contracted generating capacity connected, zero power import over the cross-border interconnection with the UAE, and the initial tranche of plant retirements at Ghubrah postponed to 2011.


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Table 10: Comparison of Demand Forecast with Available Generating Capacity with Retirements Postponed and Non-Contracted Generation in service


Total Generating Capacity (MW) 3027 3839.9 3837.9 4476.2 4955.5 5364.4 Demand Forecast (MW) 2972 3324 3718 4326 4801 5223

Surplus/Deficit Capacity (MW) 55 492 119 46 151 99 Non-Contracted Generating Capacity (MW) 59 520 685 815 815 815

Surplus/Deficit Capacity (MW) 114 1012 804 861 966 914

Retirements - - - -113.7 -184.4 -274.5


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8. Transmission System Performance

The transmission system data used in the power system studies to determine the system performance over the period from 2009 to 2013 is presented in Appendix B of this document.

8.1 Power Flow and Voltage Profiles The extreme cases of maximum and minimum system demand are used to define the performance of the OETC transmission system when it is most heavily stressed. From the studies of these extreme conditions it is possible to identify where the system is strong and has capacity to spare and, conversely, where it is weak and will need strengthening before new connections could be considered. The peak demand case identifies where there is a risk of overloading, of operation above firm capacity, or of system voltages falling below the voltage limits as defined in the Grid Code.

The system data described and presented in Appendix B has been used in a series of load flow studies to establish the performance of the OETC transmission system at peak demand in each year from 2009 to 2013 inclusive. The studies were undertaken on the basis that all circuits and plant will be available at system peak in each of the five years and that the system will be developed in accordance with the plans described in Section 5 of the Statement. The studies also assume that the demand will grow in accordance with the Demand Forecast, which is consistent with that produced by the OPWP and distribution companies, and that sufficient generation will be available from both Contracted and Non-Contracted Generating Plants to meet each annual system peak as indicated in the OPWP latest 7 Year Statement (2009-2015).

Table 11 shows the generating plant power assumed to be in service at peak load in each year of the study from 2009 to 2013. Under peak load conditions it is assumed that capacitive support will be fully switched on, i.e. capacitor banks at 33 kV grid stations are raised to provide maximum reactive power and voltage support. In the studies the generator terminal voltage and generator-transformer taps are set to control the voltage on the transmission system at the target busbar to within the allowable limits.

A second series of load flow studies were undertaken with the transmission system supplying minimum demand. The minimum demand case identifies where there is a risk of the busbar voltages rising above the voltage limits defined in the Grid Code and where additional generation has to be operated to absorb excess reactive power, since there are no reactors connected to the system. In 2008 the system minimum demand was approximately 18% of peak demand and under this condition the generation has been reduced to a level that provides the necessary margin of reserve capacity that is consistent with the operational practices adopted by LDC to handle minimum load conditions.

Table 12 shows the generating plant assumed to be in service at minimum load in each year of the study. For 2009, real data are listed in the table. These actual values have been obtained from the LDC Daily Report of the 2009 minimum load which occurred on 17 January 2009. The total generation was 623 MW on that date. Under minimum load conditions it is assumed that all capacitor banks will be switched out.


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Table 11: Summary of Connected Generation used in load flow studies of maximum demand

2009 2010 2011 2012 2013

Total Spare Gen Total Spare Gen Total Spare Gen Total Spare Gen Total Spare Gen

Ghubrah 509.6 36.6 473.0 398.9 20.6 378.3 398.9 17.8 381.1 398.9 21.5 377.4 308.8 15.7 293.1

Rusail 684.4 50.0 634.4 684.4 35.5 648.9 684.4 30.2 654.2 684.4 37.6 646.8 684.4 34.4 650.0

Wadi Al-Jizzi 290.2 21.2 269.0 290.2 15.1 275.1 290.2 12.9 277.3 219.5 12.0 207.5 219.5 11.0 208.5

Manah 279.3 20.5 258.8 279.3 14.6 264.7 279.3 12.4 266.9 279.3 15.4 263.9 279.3 14.2 265.1

Al Kamil 282.3 20.7 261.6 282.2 14.6 267.6 282.2 12.5 269.7 282.1 15.4 266.7 282.1 14.2 267.9

Barka I 459 33.7 425.3 459 23.8 435.2 459 20.4 438.6 459 25.3 433.7 459 23.1 435.9

Sohar 621 45.4 575.6 621 32.3 588.7 621 27.7 593.3 621 34.2 586.8 621 31.4 589.6

Barka II 714.1 88.4 625.7 712.2 96.7 615.5 711.2 175.2 536.0 711.2 136.9 574.3 710.2 169.2 541.0

New Barka 375 16.7 358.3 650 35.8 614.2 650 32.8 617.2

New Sohar 375 16.7 358.3 650 35.8 614.2 650 32.8 617.2

New Ghubrah 500 25.3 474.7 External Sources 520 520 40 685 184 501 815 351.5 463.5 815 347.1 467.9 815 269.3 545.7

Total Gen (MW) 4359.9 836.5 3563.4 4412.2 437.2 3975.0 5291.2 694.0 4597.2 5770.4 717.0 5053.4 6179.3 673.4 5505.9Grid Load (MW) 3324.2 3718.5 4325.8 4800.8 5222.9


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Table 12: Summary of Connected Generation used in load flow studies of minimum demand

2009 2010 2011 2012 2013

Total Spare Gen Total Spare Gen Total Spare Gen Total Spare Gen Total Spare Gen

Ghubrah 271.9 105.6 166.3 315.4 107.9 207.5 359.7 60.2 299.5 359.7 57.5 302.2 308.8 93.2 215.6

Rusail 95.9 37.2 58.7 94.9 32.5 62.4 95.9 16.0 79.9 94.9 15.2 79.7 95.6 28.9 66.7

Wadi Al-Jizzi

Manah 29.1 11.3 17.8 28.9 9.9 19 95 15.9 79.1 192 30.7 161.3 28.9 8.7 20.2

Al Kamil 94.1 36.5 57.6 94.1 32.2 61.9 94.1 15.8 78.3 94 15.0 79 94 28.4 65.6

Barka I 239 92.8 146.2 239 81.8 157.2 239 40.0 199 239 38.2 200.8 239 72.2 166.8

Sohar 268 104.2 163.8 268 91.9 176.1 267 44.4 222.6 267 42.4 224.6 267 80.4 186.6

Barka II 260 88.9 171.1 259.5 43.4 216.1 259.5 41.5 218 258.8 78.2 180.6

New Barka III 375 113.2 261.8

New Sohar II 375 113.2 261.8

New Ghubrah External Sources 115 102 13 115 98 17 115 93 22 115 89 26 115 87 28

Total Gen (MW) 1113 489.6 623.4 1415.3 543.1 872.2 1525.2 328.7 1196.5 1621.1 329.5 1291.6 2157.1 703.4 1453.7 Grid Load (MW) 542 762 1076 1167 1291


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The key results of the load flow and fault level studies on the OETC transmission system are presented in detail in Appendix C for each year over the period 2009 to 2013. System diagrams showing the results of the peak demand load flows have also been produced and are available in Appendix C.

The results include the following:

The Transformers percentage loading of all grid stations at system peak demand are as per Table C.1.

Available spare capacity at each grid station in relation to firm capacity at system peak demand can be seen in Table C.2. It should be noted that although spare MVA capacities are available at some individual grid stations, there is no guarantee that all can be exploited simultaneously. Lack of available generation and/or voltage level limits may restrict simultaneous utilization of all spare MVA capacities.

Percentage loading of each overhead line and underground cable in the transmission system at system peak demand is as per Table C.3.

Voltage profile at each 220 kV, 132 kV and 33 kV bus-bar at maximum and minimum load, Table C.4.

Annual transmission losses at peak demand are as shown Table C.5.

Maximum 3-phase and single-phase to earth short-circuit fault levels are as shown in Table C.6 and Table C.7 respectively.

The principal findings from the power system studies are:

Out of firm conditions

a) Two of the six existing 220/132 kV grid stations have large amounts of spare capacity available over the period from 2009 to 2013 to cope with future growth in demand. These are MIS and Sohar Industrial Port ‘A’ (SIA-1) grid stations. The six new 220 kV grid stations commissioned over the period 2009 – 2013 at Airport Heights, Jahloot, Sohar Industrial Port “B”, Ibri, Sur, and Wadi-Adai will substantially increase the amount of grid transformer capacity connected to the transmission system to facilitate further development of the power sector. The additional capacity will enable load transfers between grid stations to eliminate over-firm operation such as at MSQ and Mawilah.

b) The 132/33 kV grid stations show more constraints. For example, at the summer peak in 2009, only twelve out of thirty two grid stations are operating within their firm capacity, i.e. more than 60% of the grid stations will be operating above firm capacity. One of these, Seeb Main, is shown to be overloaded. Upgrading Seeb Main 132/33 kV grid station from 2 x 63 MVA to 2 x 125 MVA transformers is at the consultancy stage (evaluation of EPC tenders) and planned to be commissioned in the third quarter of 2010.

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Page | 66

8.2 Fault levels

a) Three-Phase Short Circuit Studies The maximum 3-Phase and Single-Phase short-circuit fault levels have been determined in accordance with IEC 60909 and as such the calculation excludes the contribution to fault level from sources at lower voltages, e.g. from induction motors connected at 11 kV or below. The method is valid and consistent with that followed by other transmission companies in the absence of data from the distribution companies for short-circuit back-feeds to the grid station 33 kV busbars. Table C.6 summarises the results of the 3-phase fault studies:

a) All of the 220 kV busbars have fault levels within the corresponding switchgear ratings over the period 2009-2013.

b) All the 132 kV buses, except Ghubrah in 2009, have fault levels within the corresponding switchgear ratings. However, by splitting the busbars for 2010 the fault level is reduced to within the switchgear rating.

c) The 3-phase short-circuit level at all 33 kV busbars except Rusail, does not exceed the switchgear rating. At Rusail the fault level marginally exceeds switchgear rating in 2009 and even less so in 2010.

b) Single-Phase Short Circuit Studies Table C.7 summarises the results of maximum single-phase short circuit studies for years 2009 to 2013:

a) In 2009 the single-phase fault levels at all buses on the transmission system are within the switchgear rating except at the Ghubrah and MSQ 132 kV busbars, due to delay in splitting Ghubrah busbars

b) In the years 2010 to 2013 the fault levels across the transmission system are within the corresponding switchgear short-circuit ratings. During 2010-2012 busbar splitting at Ghubrah (or MSQ) in addition to Rusail will be adopted. In 2013 fault current limiters will be installed at Ghubrah, thus limiting short-circuit currents to be within switchgear rating. This will provide a long-term permanent solution in the OETC Transmission System. In this case, there will be no need to apply the splitting technique at any busbars in the system. Both Rusail and Ghubrah Busbars will be operating normally without the need for splitting.


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9. Development Opportunities

From the results of the load flow and fault level studies, and from analysis of the magnitude and location of generation and demand on the transmission system it is possible to give some indication as to where future generation and demand can be connected to the transmission system without causing or exacerbating any critical technical issues.

9.1 Review of the generation versus load balance on an area basis The performance of the transmission system is affected by the transfer of power, both real and reactive, from one region to another. Large power transfers between regions over long distances increase the voltage drop across the transmission system. They also increase the power losses and reduce the efficiency of the system. Ideally if the balance between generation and demand is maintained on a regional or area basis then power transfers over long distances can be minimised and the efficiency of the transmission system improved.

Figure 12 shows the connectivity of the OETC transmission in 2013 as it extends over the northern regions of Oman, a distance of around 500km from Shinas in the North West to JBB Ali in the south-east. To assess how generation and load is distributed over the transmission system the whole supply area has been split into seven geographic areas:

a) Central Muscat

b) Outer Muscat

c) North Coast

d) Sohar

e) Border and Interior

f) Nizwa

g) Sur.

The Central Muscat area, although geographically the smallest area, is by far the most heavily populated, with the highest demand and with the greatest amount of connected generation, even though much of the generation currently operating at Ghubrah is the oldest on the system and the most inefficient.

The Sohar area is rapidly developing around the new port with new industry seeking connections to the OETC transmission system or the distribution system of the Majan Electricity Company. Some of the larger industrial customers in this area also operate their own generating plant and on occasions supply power to the transmission system on a non-contracted basis.


Page | 68

The North Coast area covers the coastal strip between Barka on the western outskirts of the Muscat area and Sohar. This area is likely to develop as Sohar port grows, since the main road link between Muscat and Sohar runs through it. It also has been chosen for the Blue City Development which is a major residential and tourist development.

The Outer Muscat area is also being developed as a major tourism area along the coast just south of Muscat, with resorts being developed at Yitti and Yankit. However, the generation in Outer Muscat is located at Barka, around 140km from the resorts.

The transmission system in the Border area provides the interconnection with the UAE and supplies a number of grid stations that feed the Majan distribution system to supply a number of small towns and villages in this remote area. The power station at Wadi Jizzi is located in the north of the area and over 160km from the grid stations at Ibri and Al Hail where the voltage quality is poor. However, the development plan for the period 2009 – 2013 will see the extension of the 220 kV system from Al Wasit to Ibri and this should produce a marked improvement in the voltage quality.

The other areas, Nizwa and Sur, are provincial load centres that are exhibiting moderate growth. In both areas there is a local power station connected to the transmission system, and in the Sur area a private customer has installed generation that can provide support when required again on a non-contracted basis.

Table 13 compares the generation capacity installed in each of the seven areas with the forecast demand at the grid station at the annual system peak over the period 2009 to 2013. From the table it can be seen that there is a surplus of generating capacity in the Outer Muscat area across the period with the commissioning of Barka Phase 2 in 2009 and new IPP at Barka (Barka -3) in 2011/2012. The power balance in Central Muscat area is shown to be in deficit over the period from 2009 to 2013.

At Nizwa, the minor surplus in generation in 2009 becomes a deficit by 2011 as the demand grows From 2011 to 2013 there will be a modest, but increasing shortage of generation in the Nizwa area, so there may be a need for new generation in that area in future.

At Sohar a generation surplus is forecast to 2013 and the magnitude of the surplus suggests it could remain in surplus for some time after 2013. The load forecast shows there will continue to be high growth in industrial demand in the Sohar area.

The major power deficit on the transmission system is in the North Coastal area where it increases from 413 MW in summer 2009 peak to 709 MW in 2013. No generation is connected to the transmission system in this area, which stretches about 180km from east to west, and this area could obtain some benefit from generation at a central location.

The Border & Interior and the Sur areas will experience an increasing deficit in generating capacity over the period. By 2013, the deficiency in the two areas will be around 567 MW and 256 MW respectively. In the Interior the 132 kV transmission system experiences poor voltage levels at peak demand and new generation could provide the necessary voltage support, although reactive compensation would probably


Page | 69

be more cost effective. At Sur the voltage problems will be addressed by extending the 220 kV transmission systems from Jahloot to Sur in 2012.

9.2 Available grid station capacity Table C.2 in Appendix C identifies the available capacity at grid stations for the connection of new demand over the period 2009 to 2013.

Table 14 lists the grid stations where spare grid transformer capacity of more than 10 MVA is available1 to supply new demand, on the same area basis as that presented in sub-section 9.1. The MVA figure quoted refers to the available capacity in 2013.

1 The available capacity was determined in relation to the firm capacity of the substation.


Page | 70

55km

28km

8km

19.7km

54 km

5km

Qurum

YEW x 2

39.2km

51.3km

YEWx 2

ARCURIAx 2

3.2 km

YEW x 29.7 km2500mm2

XLPE

CABLE

YEWx 2

YEWx 2

YEW x 2

40km

YEW x 2

YEW x 2

YEW x 2

YEW x 2

YEWx 2

YEWx 2

ARCURIA x 2

YEW x 2

YEW x 2

ARCURIAx 2

10 km2500mm2 XLPE

22 kmYEW

x 2

10km

Figure 12: Future OETC Transmission System (2013).


Page | 71

Table 13: Estimated power surplus and power deficit on an area basis (2009 - 2013)

Area Grid & Power Stations Grid Station loads at System Peak Demand 2009 2010 2011 2012 2013

Central Muscat Ghubrah Power Plant 509.6 398.9 398.9 398.9 308.8 Rusail Power Plant 684.4 684.4 684.4 684.4 684.4 New Ghubrah Power Plant 500 Total Generation MW) 1194.0 1083.3 1083.3 1083.3 1493.3 Al Falaj 144.5 148.8 103.3 105.4 107.0 Airport Heights 50.0 55.3 61.9 67.8 Azaiba Coast 30.0 33.2 36.2 39.0 Al Khoudh 60.0 Boushar-A 188.6 108.0 113.4 87.9 92.3 Boushar-B 110.0 101.1 65.1 67.7 Ghala 70.0 79.8 Ghubrah 84.9 58.7 64.8 99.1 103.5 Ghubrah Temporary 30.0 30.0

Mawellah 161.5 91.1 77.1 82.1 87.4 Mawellah-2 60.0 80.0 96.4 70.3 MS Qaboos 163.0 116.9 82.7 84.0 85.2 MS Qaboos-2 60.0 80.0 89.6 98.6

Muttrah 100.0 104.0 106.1 Qurum 60.0 93.9 101.9 Rusail 114.8 141.7 110.19 116.80 121.47 Seeb Main 109.6 65.1 108.3 103.8 78.9 Seeb Temporary 40.0 Wadi Adai 119.2 120.9 94.4 85.8 87.1 Wadi Kabir 149.4 151.6 104.6 107.8 109.4 Transport(Muscat) 20 20 20 Total Load (MW) 1235 1383 1418 1510 1583 Power Surplus (MW) -41 -300 -335 -426 -90


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Table 13(continued): Estimated power surplus and power deficit on an area basis (2009 - 2013)

Outer Muscat Barka phase-1 Power Plant 459 459 459 459 459 Barka phase-2 Power Plant 714 712 711 711 710 New Barka Power Plant 375 650 650 Total Generation MW) 1173 1171 1545.2 1820.2 1819.2 Barka Main 157.0 169.5 135.3 88.0 89.3 Barka Main-2 70.0 Jahloot 94.2 101.2 76.9 53.9 58.0 Amerat 70.0 96.3 Misfah 80.0 81.0 90.7 Mobella 72.3 78.1 86.2 91.4 96.0 Quriyat 30.0 32.8 36.7 Sumail 68.4 78.0 87.3 93.0 98.1 Yankit 33.0 35.5 Yitti 35.0 38.7 42.9 48.1 Total Load (MW) 392 462 534 586 719 Power Surplus (MW) 781 709 1011 1234 1100 North Coast Total Generation (MW) 0 0 0 0 0 Blue City 20.0 50.0 120.0 Nakhal 41.0 71.4 102.1 Khabourah 126.0 77.3 85.1 88.9 92.9 MIS 80.0 89.6 95.4 103.1 Muladha 204.8 134.0 140.7 149.8 85.8 Rustaq 82.1 89.5 95.3 101.5 105.5 Saham 83.0 94.2 98.0 99.9 Total Load (MW) 413 464 566 655 709 Power Surplus (MW) -413 -464 -566 -655 -709


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Sohar Sohar I Power Plant 621 621 621 621 621 Sohar II Power Plant 375 650 650 Total Generation MW) 621 621 996 1271 1271 Sohar Ind'l A 86.8 88.1 89.4 90.8 92.2 Sohar Grid 178.0 123.2 134.3 84.3 88.6 Sohar Temporary 27.0 27.4 27.8 28.2 28.7 Sohar Industrial Area-A (132 kV) 30.0 30.0 50.0 50.0 50.0 Sohar Industrial Area-A (220 kV) 50.0 50.0 120.0 120.0 120.0 Sohar Industrial Area-B (220 kV) 70 120 140 Total Load (MW) 372 319 492 493 519 Power Surplus (MW) 249 302 504 778 752 Border & Interior Wadi Jizzi Power Plant 290.2 290.2 290.2 219.5 219.5 Total Generation MW) 290.2 290.2 290.2 219.5 219.5 Al Hail 30.7 32.1 36.4 39.3 22.5 Al Wasit 22.1 24.0 27.2 29.4 31.7 Dreez 46.2 Shinas 75.9 37.0 42.0 45.3 48.9 Buraimi 96.4 110.8 125.8 85.8 92.7 Dank 19.1 19.9 22.6 24.5 26.4 Ibri 90.5 95.9 108.9 117.6 103.5 Moltaqa 87.2 88.1 Free Zone 70.0 74.2 Buraimi-2 70.0 75.6 Liwa 75.0 85.1 91.9 96.5 Wadi Sa'a 18.0 30.0 40.0 50.0 Garamco(132 Liwa) 20.0 30.0 30.0 30.0 Total Load (MW) 335 433 508 731 786 Power Surplus (MW) -44 -143 -218 -512 -567


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Nizwa Manah Power Plant 279.3 279.3 279.3 279.3 279.3 Total Generation MW) 279.3 279.3 279.3 279.3 279.3 Adam 20.0 22.8 25.5 27.2 30.6 Bahla 65.0 74.1 83.0 88.4 99.4 Izki 57.0 65.0 72.8 57.5 64.7 Nizwa 98.3 112.1 125.6 83.7 94.2 Nizwa University 70.0 78.8 Total Load (MW) 240 274 307 327 368 Power Surplus (MW) 39 5 -28 -47 -88 Sur Al Kamil Power Plant 282.3 282.2 282.2 282.1 282.1 Total Generation MW) 282.3 282.2 282.2 282.1 282.1 JBB Ali 92.3 105.3 117.9 105.6 74.0 Mudhaibi 62.7 71.5 80.1 70.3 79.0 Mudharib 91.2 104.0 116.4 84.0 94.5 Sur 91.2 104.0 116.4 84.0 94.5 Al Rawdah 15.0 15.2 Al Kamail 30.0 70.3 Al Ayjah 40.0 40.4 Zoom Load 70 70 70 Total Load (MW) 337.4 384.7 500.8 498.8 537.9 Power Surplus (MW) -55 -102 -219 -217 -256 Colour Key: Generation deficit Not in service


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Table 14: Available Grid Station Capacity of more than 10 MVA in 2013

Region Available Grid Station Capacity (MVA)

Central Muscat

Airport Heights (42.6 MVA); Muttrah (14.8 MVA); MS Qaboos-A (38.6) ; Rusail (75.1 MVA); Azaiba Coast (51.5 MVA); Bousher-A (17.7MVA); Bousher-B (57MVA); Wadi Adai (37MVA); Wadi Kabair (10.3MVA); Al Falaj (13.8MVA)

Outer Muscat

Jahloot (64.1 MVA); Misfah (18.6 MVA); Quriyat (80.7 MVA); Yankit (81.4 MVA); Yitti (66 MVA); Ghala (27.3MVA); Al Koudh (54.6MVA); Mawallah-A ( 36.9MVA); Mawallah-B ( 46.6MVA); Moballah (25MVA); Seeb (31.9MVA); Sumail (10.7MVA); Rusail (75.1MVA)

North Coast Nakhal (18.3 MVA); Blue City (20.2 MVA); Khaborah (27.1MVA); Barka Main-A (31.5MVA); Barka Main-B (41.9MVA); Muladah (37.1MVA); MIS (17.8MVA); Rustaq (11.3MVA)

Sohar Sohar Industrial Area ‘A’ (20 MVA); Sohar (35.7MVA); Multaqa(22.3MVA); Free Zone (40.4MVA); JBB Ali (37.5MVA)

Border and Interior Dank (33.1 MVA); Shinas (13.6 MVA); Liwa ( 13.5MVA); Ibri (12.7MVA); Bureimi-A (25.6MVA); Bureimi-B (38MVA); Al Hail (13.5MVA); Al Wasit (26.9MVA)

Nizwa Izki (47.9 MVA); Nizwa University (31.6 MVA); Nizwa (14.6 MVA); Bahla (21.4MVA)

Sur Al Kamil (43.5 MVA); Al Raoudha (88.5 MVA); Ayjah ( 78.3MVA); Mudaibi (29.8 MVA); Sur ( 16.8MVA)


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10. Derogation

The load flow studies summarised in Appendix C and discussed in Sections 8 and 9 of this Statement indicate a number of out-of firm grid stations and circuits in the early years of the Statement. In this final section we review each station / circuit which is currently failing to meet the N-1 criterion; we describe the development activities that OETC is undertaking or planning to undertake to address this non-compliance; and we indicate the expected time by which, in each instance, full N-1 compliance should be achieved.

It should be noted that the N-1 situation on the transmission system will change in future as demand on the system increases and as the system configuration changes. It is possible that further N-1 non-compliances might arise in the future until the overall system becomes substantially more robust through interconnection. OETC will keep this situation under review, and the non-compliance status will be updated in the 2010 Capability Statement.

As indicated in sections 8 and 9 and summarized in tables 15 and 16, there are some grid stations and overhead lines which do not comply with the N-1 criterion. The implicit derogations from the N-1 standard expired on 31st January 2009. It will be necessary therefore for a further location and duration specific derogations to be put in place by the Authority for each of the out of firm stations noted in table 15, and for each of the out of firm circuits noted in table 16.

The following points should be noted:

1- The loading values show in tables C1 and C3 (Appendix C), are those at the peak load conditions. The system peak lasts only for a period of less than one hour in one day during the relevant year. (For example refer to Figure 6 of 2008 daily load curve peak day.)

2- According to the most recent OPWP 7-year statement (2009-2015) which has been approved by AER, there are two forecast cases: (i) base case, and (ii) high case. The difference between the high and basic case in 2009 is 64 MW at the peak. This difference increases in the subsequent years and reaches 622 MW in 2013, indicating uncertainty in the forecast over the coming years especially with regards to new industrial loads. OETC supports OPWP’s view that the likelihood of the high case demands being realized is heavily dependent on the rate of recovery of the current global economic and financial conditions. OETC intends to monitor closely, in coordination with OPWP, the situation in order to assess the probability associated with the high case projection.

3- It is not prudent to invest in uncertain expansion. OETC will, of course, initiate new projects as new demand becomes more certain. Therefore, in Tables 15 and 16 we concentrate on covering N-1 conditions at the peak in 2009.

4- The modelling reflects all load transfer schemes that have been formally accepted by the relevant distribution company and included in their load forecasts. In addition, the modelling includes certain load transfer schemes, which are not yet confirmed by the distribution company concerned, but which


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in the view of OETC are technically feasible and where no technical impediment to implementation exists.

OETC has adopted a three-fold approach to addressing these out of firm situations:

1) Reinforcement plans: strategic upgrading to add new circuits and/or to increase the capacity of grid stations within a minimum of two to five years. This will not just solve the problem; but it will also strengthen the transmission system for future development. This type of solution can only be applied as a longer term solution because of the time taken to implement. Reinforcement is the most robust long term solution for secure system development, but may not necessarily be the least cost solution to address the immediate out of firm conditions on the network.

2) Installing temporary transformers at heavily loaded grid stations, such as MSQ, Bousher, Mawalih, and Seeb Main. These will provide a temporary solution to the out-of-firm problems at the heavily loaded grid stations until a permanent solution is put in place.

3) Load Transfer: through agreement with distribution companies, load can be transferred from heavily loaded grid stations to more lightly loaded grid stations over the next three years. This would reduce the loading issues and balance the system during peak time. This is a mid-term solution which could be implemented with the cooperation of distribution companies in certain cases. Given the uncertainty of mid-term load forecasts in Oman at present, this is in some circumstances the most appropriate and economic action to address out of firm conditions on the network.

Tables 15 and 16 indicate a number of locations on the system where, at present, the out of firm condition of certain circuits or transformers is shown to exist to 2013 and possibly beyond. In respect of these currently unresolved out-of-firm conditions, OETC intends to hold further in-depth discussions with relevant system users, and particularly with the distribution companies, over the coming months to explore all possible options and to agree the most suitable option in each case. In this way, it is OETC's objective that the 2010 Capability Statement will forecast full resolution of the out-of-firm conditions by the end of the next Capability Statement period.


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Table 15: Expected Over head lines/ cables which will not comply with N-1 criterion at peak demand in 2009

* This project was planned to upgrade the conductors but Government requirements may now mean that undergrounding is necessary. Await final government decision and review project if necessary.

No Send Bus Receive Bus

Voltage (kV)

No. of circuits

Circuit Type

Conductor Size/Type

Circuit length (km)

Circuit Rating (MVA)

Loading (%)

Indicative Date for full

Compliance against N-1

Proposed solution Mitigation

1 Barka Power Station 1-2 Filaj 220 2 OHL ARCURIA

x 2 11 762 67.55 End Q3 2009 Construction of new circuits 3 and 4

--

2 Al Wasit Buraimi 132 2 OHL ELM x1 33 82 70.31 End Q2 2011 Construction of new

double circuits with steel towers

--

3 Barka Main Filaj 132 2 OHL YEW x 2 9 261 66.19 Not firm by end Q4 2011

Construction of new circuit (circuit 3)

Load transfer by Discos

4 Dank Al Wasit 132 2 OHL 225 AAAC 81 89 51.00 End Q2 2011

Upgrading the conductors following splitting of the line and construction of

Wadi Sa’a grid station (In progress)

5 Manah Nizwa 132 2 OHL YEW x 2 20 261 59.89 Not firm by end Q4 2013

Design required for reinforcement project in coordination with UPC

6 Mawalih Seeb Main 132 2 OHL 240 ACSR 8 101 70.42 End Q2 2010 Replacement of the

conductors with higher rated components*

7 Mawalih Rusail 132 2 OHL 240 ZTACIR 8 261 66.67 End Q1 2010

Options to be reviewed for further

reinforcement

8 MSQ Wadi Adai 132 2 OHL YEW x 2 8.2 261 60.02 Not firm by end

Q2 2011

Options to be reviewed for further

reinforcement

Load Transfer by Discos

9 Wadi Jizzi Al Wasit 132 2 OHL ELM x 2 33 163 68.54 End Q3 2010

Construction of new 220kV line between SIS

and Mahadah ( In progress)

10 Wadi Jizzi Shinas 132 1 OHL ELM x 1 45.6 82 105.20 Q3 2009 Construction of new double-circuit line

11 Wadi Kabir Wadi Adai 132 2 OHL YEW x 1 8 130 54.81 Q2 2011

Design required for upgrading to twin

conductor (Q4 2010)


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Table 16: Expected Grid stations/ Transformers 132/33 kV which will not comply with N-1 criterion at peak demand in 2009.

No. Location

Total Transformer

Capacity (MVA)

Substation Firm

Capacity (MVA)

Loading (%)

Indicative Date for full Compliance against N-1 Proposed Solution Mitigation

1 Al Falaj 2 x 125 125 79.27 Not firm by end Q2 2011 Design required for increased capacity.

Load transfer by Disco from Falaj to Muttrah Grid Station

2 Barka Main 2 x 125 125 73.20 Not firm by end of Q4 2012 Design required for increased capacity

Load transfer by Disco to Nakhal

3 Bousher-A 2 x 125 125 97.53 Not firm by end of Q1 2012 Construction of Tx 3 and 4 (Bousher- B) plus options to be reviewed for further reinforcement

Load transfer by Disco to Bousher-B and Airport Heights

4 Dank 2 x 15 15 74.20 End Q4 2010 Upgrade of Dank by shifting Ibri transformer to Dank bringing capacity to 63MVA (In progress)

5 Ibri 2 x 63 63 89.21 End Q1 2011 Upgrade of Ibri to 125MVA ( In progress) 6 Izki 2 x 40 40 89.24 End Q2 2012 New upgrade of Izki

7 MSQ 2 x 125 125 83.98 End Q2 2010 40MW Load transfer by Disco to Qurum , plus options to be reviewed for further reinforcement

8 Mawaleh 2 x 125 125 77.22 End of Q2 2010 Load Transfer to Azaiba Coast under discussion with Disco , plus options to be reviewed for further reinforcement

9 Mudaibi 2 x 63 63 63.04 End Q2 2012 Upgrade of Mudaibi to 2x125MVA 10 Muladah 2 x 125 125 95.53 End Q1 2013 Add Tx 3 & Tx 4 Load transfer 11 Rustaq 2 x 63 63 82.00 End Q2 2012 Upgrade of Rustaq to 2 x 125 MVA transformers 12 Seeb Main 2 x 63 63 112.45 End Q2 2010 Upgrade of Seeb Main (In progress) 13 Shinas 2 x 63 63 65.41 End Q2 2010 Load transfer to Liwa GS

14 Sohar 2 x 125 125 80.65 Not firm by end of Q2 2012 Load transfer by Disco from Sohar to Liwa and Saham , plus options to be reviewed for further reinforcement

15 Sumail 2 x 63 63 66.85 Not firm by end of Q1 2012 Upgrade of Sumail to 2 x 125MVA planned but latest data from Disco indicates that this will not resolve non compliance. Requires review and possible redesign.

16 Wadi Adai 2 x 125 125 52.13 Not firm by end of Q2 2011 Load Transfer by Disco to new station at Qurum ( In progress)

17 Wadi Kabir 2 x 125 125 57.13 Not firm by end of Q12011 Load Transfer by Disco to new station Mutrah ( In

progress)


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Appendix A: Review of Future Developments

The OETC transmission network is undergoing widespread and rapid development due to the expansion requirements of distribution companies, large private customers, and new generation requirements based on the yearly demand growth and further reinforcements on the transmission network to ensure the security, quality and reliability of the system.

An important change to the Omani electricity sector is the new interconnector between Oman and the UAE (GCC link). The work on the interconnector was completed in the first quarter of 2008, but the circuits will not come into use until the GCC Intergovernmental Agreements are signed. A further development is the Mahadah to SIS interconnection through a 220kV double circuit. There are a significant number of projects required to meet the annual peak demands over the period of this Statement (2009-2013). These projects are considered below under the following categories:

• Projects of 2009 system peak.

• Projects that are at the tender evaluation stage prior to appointment of the preferred EPC Contractor.

• Projects for future developments which represent the least cost options to address problems with system growth, voltage profile, N-1 security criteria transmission system reinforcement.

The entire programme of ongoing and future projects which are planned for implementation over the period 2009 to 2013 are listed and described below. It should be noted that the project numbers referred to in the Appendix are identical to those in Table 1 of the Executive Summary, and it should also be noted that not all of the projects described have full authorisation at this time.

A.1 Projects of 2009 system peak

Project #1: 132/33 kV grid supply point at Adam

The project establishes at new 132/33 kV, 2 x 40 MVA grid supply point (GSP) at Adam in Dakhiliya Region which will be supplied directly from Manah Power Station via a 132 kV, 47 km double circuit overhead line. The new GSP will provide some load relief from Nizwa 132/33 kV GSP substation and will also greatly improve the voltage for Mazoon customers in Adam area, which are currently fed from Nizwa at 33 kV by around 70km to the north of Adam.

This project is in its final stage of construction and was completed on 10 June 2009.


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Project #2: Upgrade of the transformer capacity at Nizwa and Bahla grid stations

The 132/33 kV grid stations at Nizwa (2 x 63 MVA) and Bahla (2 x 40 MVA) were both loaded above firm capacity at peak demand in 2008 and to address this situation both grid stations will have their existing transformers replaced with 2 x 125 MVA transformers. One 125MVA transformer at each grid station was energised in May 2009.

A.2 Projects expected to be completed to meet the 2010 peak demand

Project #3; 132/33 kV grid supply point at Muladah

The new 132/33kV, 2 x 125 MVA GSP at Muladha in South Batinah is being constructed on the same site as the MIS 220/132 kV interconnection grid station. One transformer at this new GSP station was energised on 11 April 2009. This GSP will provide load relief to the existing Muladha (11km from MIS) and Khabourah substations (53km from MIS).

Project #4: 132/33 kV grid supply point at Liwa

The new 132/33kV, 2 x 125 MVA GSP at Liwa in North Batinah provides load relief to both Shinas and Sohar grid stations. The project is completed in two phases. In the first phase the grid station was located at a point close to the existing 132 kV single circuit overhead line between Wadi Jizzi Power Station and Shinas. In the second phase, the existing single circuit line between Wadi Jizzi and Shinas was replaced with a new double circuit line. The project was energised on 20 June 2009.

Project #5: 132/33 kV grid station at Saham

The new 132/33kV, 2 x 125 MVA grid station is located near to the existing 132 kV double circuit line between the Khabourah 132/33 kV grid station and the 220/132 kV SIS (Seh Al Makarim) interconnector station and both circuits will be looped in and out of Saham. The new grid station will take load transfers from Sohar grid and Khabourah. This project should be completed in time by the third quarter of 2009 in order to meet 2010 peak demand.

Project #6: New 220 kV double circuit line between Barka Power Station and Filaij (circuits 3 and 4)

The capacity of the existing 220 kV double circuit line between Barka Power Station and Filaij 220/132 kV grid station needs to be reinforced in order to satisfy the N-1 security criterion when the Barka power station phase 2 development is commissioned in 2009. To reinforce the


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connection a second 220 kV double circuit line between Barka Power Station and Filaij was scheduled to be commissioned at the end of 2009. The contract has been awarded and is in progress. This project has been delayed due to routing problems and a longer than expected delivery time for the 220 kV circuit breakers.

Project #7: New 220/132/33 kV grid supply point at Airport Heights

The new 220/132/33 kV grid station at Airport Heights is equipped with 220/132 kV, 2 x 500 MVA transformers and 132/33 kV, 2 x 125 MVA transformers. The grid station will supply new load and take load transfers from Bousher and Mawalih. The substation is located near the 220 kV double circuit line between Al Filaij and Madinat Sultan Qaboos (MSQ) which is looped in and out of Airport Heights. The work is scheduled for completion in the final quarter of 2009 (November 2009).

Project #8: New 132/11 kV grid station at Azaiba Coast

The new grid station at Azaiba Coast is dedicated to supply the electricity demand to the Wave Project and will be supplied from Airport Heights via two 132 kV, 10km underground cable circuits. The project is the first time direct transformation from 132 kV to 11 kV has been used on the OETC transmission system. Although the work is scheduled for completion in the second quarter of 2009 (May2009), the energization of Azaiba Coast is dependent upon Airport Heights grid station having already been commissioned. The indications are, however, that Airport Height may not be energised until November 2009.

Project #9: Upgrade of the 132/33 kV grid station at Seeb Main

The existing grid station with an installed transformer capacity of 2 x 63 MVA was loaded above its firm capacity during 2008 peak load conditions with each transformer loaded to 93 % of rating. The proposed scheme will see the existing transformers replaced with 2 x 125 MVA transformers. The existing 132 kV double circuit line to Seeb Main from Mawalih that was loaded at 59% of thermal rating will be upgraded from a single 240 mm2 ACSR conductor per phase to twin “Yew” AAAC conductors per phase, increasing the thermal rating of the overhead line from 101 MVA to 261 MVA per circuit. The work is scheduled for completion by the third quarter of 2010.

Project #10: 132/33 kV Grid Supply Point at Wadi Sa’a

The Al Buraimi Cement Factory has applied to the Majan Electricity Company for a connection to supply a demand of 20 MW in 2009 and a further 12 MW in 2010. To meet this requirement a new 132/33 kV, 2 x 63 MVA grid supply point is scheduled to come into service during the second quarter of 2010 at Wadi Sa’a, near Buraimi in the Dhahirah region. The cement factory is located around 40 km from Mahadah (Al Wasit) grid station and so to avoid voltage drop problems in this area the Wadi Sa’a grid station is being established.


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• Project #11: 132/33 kV Grid Supply Point at Yitti

The new Yitti tourist resort in the Muscat Governorate will be supplied from a new 132/33kV, 2 x 125 MVA grid station at Yitti, which in turn will be fed from a new 132 kV bus-bar arrangement installed at Jahloot 132/33 kV grid station via a 132 kV double circuit line. The new GSP will also supply the existing Yitti load, which is currently supplied from Jahloot at 33 kV. The work is scheduled to be completed during the second quarter of 2010. The overhead line will be designed for operation at 220kV, but energized at 132kV. The 220 kV design makes provision for a possible future upgrade of the supply to 220 kV in the event that demand in the Yitti area grows to the extent that a higher transmission voltage is required to supply the area.

Project #12: Replacing portion of existing 220kV & 132kV OHL by Underground cables

near existing & planned residential Area in Muscat

Replacement of the existing 220kV & 132kV overhead lines with underground cables near existing and planned residential areas within the Muscat governorate is required for environmental reasons. When the transmission towers were established around fifteen years ago the Muscat area was not so heavily residential, but with urban development has come increased health and safety considerations. Undergrounding will also assist in eliminating or at least reducing the voltage drop issues that occur with overhead lines. The project is scheduled to be completed by the second quarter of 2010.

Project #13: Rusail-Mawalih 132kV

The Rusail-Bousher 132kV line will be disconnected from Bousher side and reconnected to Mawalih grid station. The existing line passes near Mawaleh at a distance of about 200 m. The project is expected to be in service by Q3 2010.

Project #14: Addition of new temporary 40 MVA transformer at Ghubrah

A new 132/33 kV 40 MVA transformer will be installed temporarily at Ghubrah by the second quarter of 2010 to support the existing 40MVA transformers by providing load relief of up to 30MW to meet N-1. The transformer will be in service until the capacity is upgraded to 2 x 125MVA to meet the 2012 peak.

Project #15: Addition of temporary 63 MVA transformer at Seeb Main

A 132/33 kV 63 MVA transformer will be installed temporarily at Seeb Main by the second quarter of 2010 to support the existing 63 MVA transformers by providing load relief of up to 30MW to meet N-1. As with Project #17, the transformer will be in service until the capacity is upgraded to 2 x 125MVA at some later date.


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Project #16: Addition of third 132/33 kV 125MVA transformer at MSQ

A third 132/33 kV 125 MVA grid transformer will be installed at MSQ to shift around 60MW from the existing two transformers in order to meet N-1. The work is scheduled for completion in the second quarter of 2010.

Project #17: Addition of third 132/33 kV 125MVA transformer at Mawalih

A third 132/33 kV 125 MVA grid transformer will be by installed at Mawilah to shift around 60MW from the existing two transformers in order to meet N-1. The work is scheduled for completion in the second quarter of 2010.

A.3 Projects expected to be completed to meet the 2011 peak demand

Project #18: Bousher- Airport Heights 132kV

This project is linked with Project #14. The work requires the reconnection of 1.5 km of the 132kV double circuit line between Rusail and Bousher to become part of the new 132 kV Airport Heights – Bousher double circuit line. The connection of Bousher to Airport Heights rather than Rusail is required to satisfy N-1 and to limit short circuit fault level at Bousher and Rusail. The project is expected to be in service by the third quarter of 2010.

Project #19: Addition of fourth 125MVA transformer at Bousher Grid station The addition of a fourth 132/33 kV 125 MVA grid transformer at Bousher Grid will enable the 33 kV network at Bousher to be supplied from two groups of 2 x 125 MVA transformers, i.e. GT1/GT2 and GT3/GT4, effectively establishing two grid stations at Bousher (Bousher 1 and Bousher 2). This will enable OETC to share the load evenly between the two groups and enable each to meet N-1. It will also reduce the short circuit level at the 33kV busbars.

Project #20: New 132/33 kV Grid Supply Point at Quriyat

The demand at Quriyat is currently supplied at 33 kV from Jahloot, a distance of 30km, which causes reduced voltage during peak load conditions. The planned 132/33 kV 2 x 125 MVA grid station at Quriyat supplied from Jahloot via a 132 kV double circuit line will address the voltage problems around Quriyat. The work is scheduled to be completed by the second quarter of 2011. This project has been awarded for consultancy service.


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Project #21: New 132/33kV grid supply point at Misfah and 132 kV connection

The new 132/33 kV 2 x 125 MVA grid station at Misfah is scheduled to come into service in the first quarter of 2011 to accept load transfers from Rusail, and meet future load growth and support the system voltage. The existing 132 kV Rusail – Wadi Adai double circuit line will be looped in and out of Misfah.

Project #22: Upgrade of the 132 kV connection between Dank and Al Hail

The existing connection to Al Hail is by a 132 kV 52km single circuit overhead line from Dank which is not compliant with the N-1 security requirements and therefore in contravention of Licence Condition 26. Al Hail also suffers the worst voltage conditions on the OETC transmission system because of its remote location on the system and its single circuit connection. Upgrading the connection to a double circuit is considered a high priority scheme and is required at the earliest date. OETC has taken action to that effect and as a result the work is scheduled for completion in the first quarter of 2011.

Project #23: New 132/33 kV grid supply point at Qurum

The new 132/33 kV, 2 x 125 MVA grid station is required to supply new developments in Ras Al Hamra and Qurum and to receive load transfers from MSQ and Wadi Adai grid stations. This project was planned to be in service by the 2009 summer peak, but due to difficulties in obtaining a suitable route and location for the substation the project has been delayed, with completion now scheduled for third quarter of 2010.

Project #24: Upgrade of the 132 kV double circuit line between Al Wasit and Buraimi

The existing 132 kV, 33 km double circuit line between Al Wasit and Buraimi was operating over-firm under 2008 peak load conditions, with each circuit loaded at 80% of thermal rating. To increase the capacity of the single ‘Elm’ conductor per phase to be replaced with twin ‘Yew’ conductor, but to carry the extra weight of the conductor the line will be rebuilt with steel lattice towers. Approximately 6km of the route will be by underground cable to avoid environmental impact and related health and safety issues, the cable size chosen to match the capacity of the upgraded conductor. The work is scheduled to be completed by the fourth quarter of 2010.

Project #25: 220 kV double circuit line between SIS (Seh Al Makarim) and Al Wasit

With the completion of this project, a double circuit 220 kV connection will be established across northern Oman from MSQ grid station in Muscat to the 220 kV interconnection with the UAE at Mahadah (Al Wasit). This will strengthen the network and improve the effectiveness of the cross-border interconnector. This work is scheduled to be completed during the third quarter of 2010. The EPC contract is awarded.

Project #26: New 220/33 kV grid supply point at Blue City

The electricity supply to the new Blue City development in the South Batinah region will be fed from a new 220/33 kV grid supply point connected between the MIS and Filayj grid stations by


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routing the 220kV MIS – Filayj double circuit connection through the new grid station in a line-in-line-out (LILO) arrangement. The diversion will require two 220 kV double circuit overhead lines over part of the route and four 220 kV 2500mm2 cable circuits over the last 6 km of the route as it reaches the Blue City grid supply point. The project is dedicated to supply the Blue City project as requested by Mazoon Electricity Company and is currently in the design stage with the EPC tender ready to be floated when confirmation to proceed is received from Mazoon. At present the grid station is due in service during the first quarter of 2011.

Project #27: New 132/33 kV grid supply point at Muttrah:

A new 132/33 kV 2 x 125 MVA grid station is planned for Muttrah to take load transfers from Wadi Kabir and Al Falaj 132/33 kV grid stations. The new grid station will be supplied directly from Qurum 132/33 kV grid station (established under project #23) by construction of a new 132 kV double circuit line.

The Muttrah area is currently supplied from the existing Al Falaj and Wadi Kabir grid stations, which were both operating above firm capacity under 2008 peak load conditions. The work is scheduled to be completed during the fourth quarter of 2010.

The new grid station at Muttrah is preferred to the alternative of reinforcement of the existing Al Falaj and Wadi Kabir grid stations although it may be more complex and costly to undertake due to constraints on available building land due to the mountainous nature of the terrain.

Project #28: Second phase of development at Sohar Industrial Area 220/132 kV grid station:

This project is required in order to meet the expected industrial demand growth in Sohar industrial area. In addition this project will support and ensure that the existing Sohar Industrial Area 220/132/33 kV grid station which developed in the first phase meets the N-1 security requirements. This grid station is scheduled for the final quarter of 2010. This project was proposed to be 220kV/132kV/33kV but after confirmation from Majan, the grid will be constructed as 220kV/132kV system and it is designed to accept 33kV if required in the future. Currently there is one customer to be fed from this grid station, confirmed at around 90MW as a first stage, later rising to 170MW.

Project #29: Upgrade of 132/33/11 kV Grid Supply Point at Dank

The existing 2 x 15 MVA, 132/33 kV grid supply point at Dank in the Dhahirah region was loaded to 69 percent of its rating during the 2008 summer peak and further growth is likely to occur in 2009 above to the firm capacity during the 2009 summer peak. OETC recognises the need to increase the transformer capacity at Dank and is considering the options, with 2 x 63 MVA favoured, although 2 x 40 MVA or the installation of a third 15 MVA unit would offer a lower cost solution. The project completion date is expected during the fourth quarter of 2010.


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Project #30: Adding new transformer 125MVA at MSQ Tx.4

This project will be done in addition to project # 16 where a fourth transformer will be installed at MSQ (MSQ-2) as part of the scope of this project. By this project MSQ-1 will meet N-1 and will be fine for the expected load in the area. This project is expected to be in service by Q2 2011.

Project #31: Adding new transformer 125MVA at Mawalih Tx.4

This project will be done in addition to project # 17 where a fourth transformer will be installed at Mawalih ( Mawalih-2) as part of the scope of this project. By this project Mawalih-1 will meet N-1 and will be fine for the expected load in the area. This project is expected to be in service by Q2 2011.

Project #32: Upgrade of Ibri grid station from 2 x 63MVA to 125MVA transformers

The existing 2 x 63 MVA, 132/33 kV grid supply point at Ibri in the Dhahirah region was overloaded during the 2008 summer peak. The favoured option for this project is to replace the two 63 MVA transformers with 2 x 125 MVA transformers. The award of the Consultancy Contract was done in last October 2008 and the project is scheduled to be completed by Q2 2010.

Project #33: Construct 132/33 kV grid station at Nakhal area with associated transmission system:

Construct 132/33kV Nakhal new grid stations and connect it with Al-Falij via 132kV lines. This project will assist with the new load growth in the area and also support the voltage. The load at Nakhal is now fed by two 33kV feeders from Barka main grid station which is fully loaded. This project will release load from Barka main. This project is expected to be completed by final quarter of 2010 and so will meet the peak of year 2011.

Project #34: Construction of new 220kV lines from Mahadah to Ibri:

This project was planned to be as 132kV system. OETC decided to build this project as 220kV to connect Al Dahirah grid stations with 220kV system due to shortage of reactive power and low voltage. This project will support the voltage in the area and it will meet the N-1 for all 132kV lines. The existing wooden lines will remain and the link between Wadi Sa’a and Dhank will be opened and used for emergency, and Dhank will be connected from Ibri. The existing lines can carry the required power to Dhank and Al Hail. This project would reinforce the transmission system voltage issues and further load demand in the area. By this connection the 220kV link will be ready for the completion on the ring around the four areas (Muscat, Batinah Dahira and Al


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Dakhliah) through Misfah –Nizwa university 220kV system later on .This project is expected to be completed on second quarter of 2011 before the 2011 peak.

A.5 Projects expected to be completed in time to meet the 2012 peak demand:

Project #35: 132/33 kV grid supply point at Yankit:

The proposal to establish a 132/33 kV grid supply point at Yankit is in the early stages of development. The local load at Yankit is currently supplied at 33 kV from Jahloot, over a distance of 45km, which causes reduced voltages at peak load. However, with the introduction of Yitti 132/33 kV grid station, only 5km from Yankit, there is an option to receive a supply at either 132 kV or 33 kV from Yitti as a first phase in the development.

In the second phase, with the 220 kV system extended to Jahloot and a 132 kV GSP established at Yitti, a 132 kV double circuit line would be built to supply Yankit from Yitti. The proposed new resort at Seefa, only 15km from Yankit, would be supplied from Yankit at 33 kV. A number of options are still being considered by OETC before tender documents are finalised and issued for the appointment of a consultant. The project is expected to be completed by Q2’12. In addition confirmation of requirements has been requested from Muscat Distribution Company.

Project #36: 220/132 kV Grid Supply Point at Jahloot connected to Misfah Grid Station via

220kV DCCT line:

Extension of 220 kV transmission system from Misfah to Jahloot with a 220 kV, ≈ 100km double circuit line to the new grid station will eliminate voltage problems in the Jahloot area and strengthen the supply to this provincial expected load centre. The Existing Jahloot grid station will be connected to the proposed 220/132kV system by installing 2 x 500MVA transformers. This project will feed the Yitti and Quriat grid stations and the 220kV system will be extended to Sur. This project expected to be completed by the end of the second quarter of 2012.

Project #37: Construction of 220/132 kV Grid Supply Point at Sur:

Extension of 220 kV transmission system from Jahloot to Sur with a 220 kV, 160km double circuit line to the new grid station will eliminate voltage problems in the Sur area and strengthen the supply to this provincial load centre. The existing Sur grid station will be connected to the proposed 220/132kV system by installing 2 x 500MVA transformers. This project expected to be completed by the end of the second quarter of 2012.


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Project #38: Upgrade 132/33 kV Mudhaibi grid station:

This project is to upgrade the two transformers of Mudaibi grid stations from 63MVA to 125MVA. The project will have an impact on reducing the overloading on the grid stations and also will support the voltage in the area. This project is expected to be completed by second quarter of 2012.

Project #39: Upgrading Izki grid station:

This project is to upgrade the transformers at Izki grid stations from 40MVA to 125MVA which are owned by United Power Company. This project will address both overloading and voltage issues. This project is expected to be completed by second quarter of 2012.

Project #40: Upgrade of Rustaq grid station:

Upgrade of Rustaq grid station from 2x63MVA to 2x125MVA transformers. This will address the current overloading and voltages problems. The project is expected to be in service by second quarter of 2012.

Project #41: Upgrade of Sumail grid station:

Upgrade of Sumail grid station from 2x63MVA to 2x125MVA transformers. This will address the current overloading and voltages problems. The project will come to service by second quarter of 2012.

Project #42: Construction of new Al-Kamil grid station:

Construct a new 2x125MVA grid station. This is required to meet load growth in the Sharqiya area. The project is planned to come into service by the second quarter of 2012.

Project #43: Construction of new Nizwa University grid station:

Construct of a new 132/33kV GSP at Nizwa to meet the load requirement in the area. It will also facilitate the Duqm project, if that development proceeds. The project will be in by second quarter of 2012.

Project #44: Construction of new Al-Rawdah grid station:

Construction of 132/33kV GSP at Al-Rawdah is needed to meet the load growth requirement in the area. It will also improve the voltage profile. Currently this area is supplied from Mudaibi grid station via 33kV line of around 40km. The project is expected to be in service by second quarter of 2012.


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Project #45: Construction of new 220kV grid station at Misfah:

This project will be constructed to connect the new IPP power at Barka this station will be connected to the proposed Barka-2 as interconnect grid for other links ( Wadi Adai, Jahloot and Nizwa University (Duqm project)). This grid will be connected through 220kV overhead lines 30km of high rating conductors to curry around 750MW and around 6km of 2500mm2 cables due to difficulties of rout between Barka and Filaj. The consultancy tender is in progress. This project expected to be in service Q1’2012.

Project #46: Upgrading of Ghoubrah 132/33kV grid station:

Currently this grid is 2 x 42MVA and not meeting N-1; the proposed new scheme will be 2 x 125MVA transformers with the GIS outside the Ghoubrah power plant area to connect the new proposed IPP for Ghoubrah. By construction of this project Ghoubrah will meet N-1 and accommodate the new growth in coastal area on Bousher. This project expected to be in serves by end of Q2 2012.

Project #47: Construction of new 220kV grid station at Wadi Adai:

This grid will be connected through 220kV overhead lines 45km from Misfah grid. The proposed grid will be connected to the existing 132/33kV grid at Wadi Adai. The route for this grid is high terrain. By construction of this grid all stressed 132kV lines between MSQ and Wadi Adai will be released and the voltage will be improved in the area. The consultancy tender is in progress. This project is expected to be in service by Q1’2012.

Project #48: Construction of new 220kV lines between SPS and SIS grid stations:

This project will be constructed to connect the new IPP power at Sohar by construction of 220kV over head lines 36km and around 6km underground cables these lines will be connected to the proposed Sohar-2 (SPS-2) as interconnect grid station. These lines will be designed as high rating conductors to carry around 750MW and. The consultancy tender is in progress. This project expected to be in service Q1’2012.

Project #49: Construction of new 220kV Grid at Barka(Barka-2)

This grid will be used for the new IPP at Barka (Phase-3). The grid will be as interconnection bus for the new IPP and for the new proposed 220kV lines which will be connected to Misfah. The proposed Bus will be connected to the existing through two bus section CBs and are kept open if all machines are running to avoid high short circuit effect on the existing grid, by using proper inter locking scheme. This project will be in line with Misfah and Wadi Adai projects. This project expected to be in service at Q1’2012.


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Project #50: Construction of new 220kV Grid at Sohar (SPS-2)

This grid will be used for the new IPP at Sohar (Phase-2). The grid will be as interconnection bus for the new IPP and for the new proposed 220kV lines which will be connected to SIS. The proposed bus will be connected to the existing through two bus section CBs and kept open if all machines are running to avoid high short circuit effect on the existing grid, by using proper inter- locking scheme. This project will be in line with Misfah and Wadi Adai projects. This project expected to be in service at Q1’2012.

Project #51: New Grid Station at Al Amerat ( Muscat area)

This project will be as new grid 132/33kV with 2 x125MVA connected as LILO between MSQ-Jahloot 132kV lines. This grid will support the low voltage in Al Amerat area which currently fed from Jahloot. This grid will release load from Jahloot around 40MW and can be used to transfer load from Wadi Adai through three number of 33kV lines. The location of this grid will be finalized by MEDC. This project expected to be in service Q2’2012.

Project #52: New Grid station at Al Multaqa( Sohar area)

This project will be as new grid 132/33kV with 2 x125MVA connected to Sohar grid around 10km. This grid will relief load from Sohar Grid and to cater for load growth in the area.. The location of this grid will be finalized by Majan Company. This project expected to be in service Q2’2012.

Project #53: New Grid station at Al Ghala( Muscat area)

This project will be as new grid 132/33kV with 2 x125MVA connected to Airport Heights grid around 10km. This grid will release load from Bousher Grid and cater for load growth in the area. The location of this grid will be finalized by MEDC. This project expected to be in service Q2’2012.

Project #54: New Grid station at Al Buraimi

This project will be as new grid 132/33kV (Burimai-2) with 2 x125MVA connected to the lines between Mahadah and the existing Al Buraimi grid as LILO for an around 4km. This grid will release load from Buraimi Grid and to cater for load growth in the area.. The location of this grid will be finalized by Majan Co. This project is expected to be in service by Q2’2012.


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Project #55: New Grid station at Sohar Economic Zone(SSEZ):

This project will be as new grid 132/33kV Free Zone with 2 x125MVA connected proposed SIA-2 grid station (220/132kV) around 7km underground cable from SIA-2. This grid will release load from Liwa Grid and cater for the load growth in the area. The location of this grid will be finalized by Majan Company. This project expected to be in service Q2’2012.

Project #56: New grid station at Al Aijah(Sur-2) 132/33kV:

This project will be connected to existing upgraded Sur grid station which includes the construction of a new 132kV/33kV grid station in the Al Aijah area to meet the new tourism load in the Ras Al Had area, and to support the voltage with 25km over head lines. Currently the load is supplied through 33kV lines of around 60km from the existing Sur grid station 132kV/33kV. This project is included in the price control as Sur-2 station, but after discussion with Mazoon Company, it has been decided to build new grid station in a location selected by Mazoon Company. The route survey has been started to save time and to assist in the selection of the proper location for this grid station. This project expected to be completed by the end of the second quarter of 2012.

Project #57: Adding 2 new 132kV lines between Barka Main and Filaj:

This project will be as new 132kV overhead lines( 3 and 4) connected between Filaj and Barka Main around 11km steel towers. By construction of these lines the other existing lines (1and 2) will meet N-1. This project expected to be in service Q2’2012.

Project #58: Upgrading of Wadi Adai Wadi Al Kabir 132kV lines:

These lines are constructed as single conductor which is not N-1. By construction of these lines the N-1 criteria will be met. This project expected to be in service Q2’2012.

A.6 Projects expected to be completed to meet the 2013 peak demand:

Project #59: New Grid station at Dreez:

New grid station will be constructed at Adreez area as 132/33 kV 2 x 63MVA transformers and it will be connected to Ibri grid station 30km on steel tower. This grid will support the low voltage in distribution system in the area and to release load from Ibri and Al Hail. This project expected to be in service at Q1’2013.


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Project #60 New Grid station at Al Khoudh (Muscat):

New grid station will be constructed at Al Khoudh area Muscat) area as 132/33kV 2 x 125MVA transformers and it will be connected to Al Mawalih grid station 10km on steel tower/cable. This grid will release load from Mawalih and Seeb Main grid stations. This project expected to be in service at Q1’2013.

Project #61: Upgrading of Barka Main Grid station:

This project will be by adding two 125MVA transformers to the existing grid, which will be connected to the 132kV bus bar and the 33kV side will be as two groups to avoid short circuit and complication of the operation of these transformers. This grid will release load from Existing Barka Main grid. This project expected to be in service at Q1’2013.

Project #62: Upgrading of Manah Nizwa 132kV lines:

The existing lines are not N-1 , and these lines are owned by United Power Company(UPC), and need to be confirmed and addressed to them either by upgrading the conductor or by adding new circuits. This project expected to be in service at Q1’2003.

Project #63 Upgrading of Mahadah grid station:

The existing grid station is 30MVA it will be upgraded to 63MVA to meet the N-1 and to cater for the load growth in the area. Normally the growth in this area is very slow which can be overcome by using this capacity of transformers. This project expected to be in service by end of Q1’2013

Project #64: Installing of Fault Current Limiters at Ghoubrah

The short circuit current for the existing Goubrah grid station are more than the rated (26.2kA and 31.5kA). To address the fault level issues at Ghubrah power station a number of design options are under evaluation to determine the most appropriate long term solution for the site. OETC is looking seriously to add additional fault current limiter elements for each out going circuits. This option will be studied by third party to select the proper technology used and selecting the best to avoid any complication or any system stability problems which may will occur. By installing this equipment the short circuit current will be reduced on (Bousher and MSQ). This project expected to be in service by end of Q1’2013.


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Appendix B: Transmission System Data

B.1 Substations Loads and Capacitor data. The grid station real and reactive power load at system peak demand for the period 2009 to 2013 and the respective reactive power support from capacitor banks connected at the grid station 33 kV busbars is shown in Table B.1.2 This data was used in the power flow studies of system peak demand presented in Section 8 of this Capability Statement.

B.2 Overhead Line Circuit Capacities and Parameters. The continuous thermal rating of a circuit is the maximum power flow that can be carried by that circuit on a continuous basis. The thermal rating of an overhead line is the power flow that can be carried by that line without infringing the statutory clearances and causing a risk to public safety and to the line itself. The thermal rating of an underground cable, however, is the maximum power flow that the cable can carry without either causing the cable to fail or to effectively reduce its projected lifespan through a deterioration of the cable insulation.

Although the thermal rating of an overhead line is affected by climatic conditions, for the purpose of assessing spare capacity on the transmission system the key climatic condition that limits the circuit rating is the summer rating when the temperature is at its highest and the solar radiation is at its peak. This also corresponds to when the electricity demand is at or near to its peak.

The circuit data presented in Table B.2 for the first year of the Statement period (2009) comprises the voltage, resistance, reactance, susceptance and thermal rating of the line and cable circuits. It also shows the circuit length and the type of overhead conductor or underground cable for each circuit.

Table B.3 shows the changes to the circuit data required in each of the other four years covered by the Statement.

B.3 Transformer data The data used to model the grid supply point transformers in the power flow studies of the 2009 summer peak demand condition is listed in Table B.4. The data comprises the transformer voltage ratio, the resistance and reactance, the tap range and step size. Table B.5 lists changes to the transformer data for the remaining four years of the Statement.

2 The 33 kV busbars at the grid supply points and the capacitors connected to them are owned and operated by the distribution companies.


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Table B.1: Load and Capacitor Data for Grid Stations (2009 - 2013)

2009 2010 2011 2012 2013 Grid Stations P Load Q Load Caps P Load Q Load Caps P Load Q Load Caps P Load Q Load Caps P Load Q Load Caps

(MW) (MVAr) (MVAr) (MW) (MVAr) (MVAr) (MW) (MVAr) (MVAr) (MW) (MVAr) (MVAr) (MW) (MVAr) (MVAr) Adam 20 10.2 0 22.8 11.7 0 25.5 13.1 0 27.2 13.9 0 30.6 15.7 0 Al Falaj 144.5 74.0 40 148.8 76.2 40 103.3 52.9 40 105.4 54.0 40 107.0 54.8 40 Al Khoudh 60.0 30.7 0 Amerat 70 35.9 0 96.3 49.3 0 Al Hail 30.7 22.2 10 32.1 23.2 30 36.4 26.4 10 39.3 28.5 10 22.5 16.3 10 Al Kamil 30 15.4 0 70.3 36.0 0 Al Wasit 22.1 11.9 0 24 13.0 0 27.2 14.7 0 29.4 15.9 0 31.7 17.1 0 Airport Heights 50 25.6 0 55.3 28.3 0 61.9 31.7 0 67.8 34.7 0 Azaiba Coast 30 15.4 0 33.2 17.0 0 36.2 18.5 0 39.0 20.0 0 Al Rawdah 15 7.7 0 15.2 7.8 0 Ayjah 40 20.5 0 40.4 20.7 0 JBB Ali 92.3 44.7 0 105.3 51.0 0 117.9 57.1 0 105.6 51.1 0 74.0 35.8 0 Bahla 65.0 35.1 0 74.1 40.0 0 83 44.8 0 88.4 47.7 0 99.4 53.7 40 Blue City 20 10.2 0 50 25.6 0 120.0 61.5 0 Barka Main-A 157.0 89.0 40 169.5 96.1 40 135.3 76.7 40 88 49.9 40 89.3 50.6 40 Barka Main-B 70.0 35.9 0 Boushar-A 188.6 96.6 0 108 55.3 0 113.4 58.1 0 87.9 45.0 0 92.3 47.3 0 Boushar-B 110 56.4 40 101.1 51.8 40 65.1 33.4 40 67.7 34.7 40 Buraimi-A 96.4 72.3 40 110.8 83.1 40 125.8 94.4 40 85.8 64.4 40 92.7 69.5 40 Buraimi-B 70 35.9 0 75.6 38.7 0 Dank 19.1 14.3 10 19.9 14.9 10 22.6 17.0 10 24.5 18.4 10 26.4 19.8 10 Dreez 46.2 23.7 0 Ghoubrah 84.9 43.5 0 58.7 30.1 0 64.8 33.2 0 99.1 50.8 0 103.5 53.0 0 Ghoubrah Temporary 30 15.4 0 30 15.4 0


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Table B.1 (continued): Load and Capacitor Data for Grid Stations (2009 - 2013)

Grid Stations

2009 2010 2011 2012 2013 P

Load (MW)

Q Load

(MVAr)

Caps. (MVAr)

P Load (MW)

Q Load

(MVAr)

Caps. (MVAr)

P Load (MW)

Q Load

(MVAr)

Caps. (MVAr)

P Load (MW)

Q Load

(MVAr)

Caps. (MVAr)

P Load (MW)

Q Load

(MVAr)

Caps. (MVAr)

Ghala 70 35.9 0 79.8 40.9 0 Ibri 90.5 46.4 10 95.9 49.1 10 108.9 55.8 10 117.6 60.2 10 103.5 53.0 10 Izki 57 29.2 0 65 33.3 0 72.8 37.3 0 57.5 29.5 0 64.7 33.1 0 Jahloot 94.2 42.9 0 101.2 46.1 40 76.9 35.0 40 53.9 24.6 40 58.0 26.4 40 Misfah 80 41.0 0 81 41.5 0 90.7 46.5 0 Khabourah 126 74.8 40 77.3 45.9 40 85.1 50.5 40 88.9 52.8 40 92.9 55.1 40 Liwa 75 38.4 0 85.1 43.6 0 91.9 47.1 0 96.5 49.4 0 Mawellah-A 161.5 63.8 0 91.1 36.0 40 77.1 30.5 40 82.1 32.4 40 87.4 34.5 40 Mawellah-B 60 30.7 0 80 41.0 0 96.4 49.4 0 70.3 36.0 0 Mudharib 91.2 49.2 0 104 56.1 0 116.4 62.8 0 84 45.3 0 94.5 51.0 0 MIS 80 41.0 0 89.6 45.9 0 95.4 48.9 0 103.1 52.8 40 Muladha 204.8 93.3 40 134 61.1 40 140.7 64.1 40 149.8 68.3 40 85.8 39.1 40 Mobella 72.3 37.0 0 78.1 40.0 40 86.2 44.2 40 91.4 46.8 40 96.0 49.2 40 Moltaqa 87.2 44.7 0 88.1 45.1 0 MS Qaboos-A 163 88.0 0 116.9 63.1 40 82.7 44.6 40 84 45.3 40 85.2 46.0 40 MS Qaboos-B 60 30.7 0 80 41.0 0 89.6 45.9 0 98.6 50.5 0 Mudaybi 62.7 30.4 0 71.5 34.6 0 80.1 38.8 0 70.3 34.0 0 79.0 38.3 0 Muttrah 100 51.2 40 104 53.3 40 106.1 54.4 40 Nakhal 41 21.0 0 71.4 36.6 0 102.1 52.3 40 Nizwa 98.3 50.4 0 112.1 57.4 0 125.6 64.3 0 83.7 42.9 0 94.2 48.3 0 Nizwa University 70 35.9 0 78.8 40.4 0 Qurum 60 30.7 0 93.9 48.1 0 101.9 52.2 0 Quriyat 30 15.4 0 32.8 16.8 0 36.7 18.8 0 Rusail 114.8 71.1 0 141.7 87.8 0 110.2 68.3 0 116.8 72.4 0 121.5 75.3 0 Rustaq 82.1 46.5 0 89.5 50.7 0 95.3 54.0 0 101.5 57.5 40 105.5 59.8 40


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Table B.1 (continued): Load and Capacitor Data for Grid Stations (2009 - 2013)

Grid Stations

2009 2010 2011 2012 2013

P Load (MW)

Q Load

(MVAr)

Caps. (MVAr)

P Load (MW)

Q Load

(MVAr) 1.

P Load (MW)

Q Load

(MVAr)

Caps. (MVAr)

P Load (MW)

Q Load

(MVAr) 2.

P Load (MW)

Q Load

(MVAr)

Caps. (MVAr)

Saham 83 42.5 0 94.2 48.3 0 98 50.2 0 99.9 51.2 0 Seeb Main 109.6 56.1 0 65.1 33.4 0 108.3 55.5 0 103.8 53.2 0 78.9 40.4 0 Seeb Temporary 40 20.5 0 Shinas 75.9 56.9 40 37 27.8 40 42 31.5 40 45.3 34.0 40 48.9 36.7 40 Sohar Industrial Area-A 86.8 44.5 0 88.1 45.1 0 89.4 45.8 0 90.8 46.5 0 92.2 47.2 0 Sohar Grid 178 100.9 40 123.2 69.8 40 134.3 76.1 40 84.3 47.8 40 88.6 50.2 40 Sohar Temporary 27 13.8 0 27.4 14.0 0 27.8 14.2 0 28.2 14.4 0 28.7 14.7 0 Sumail 68.4 31.2 0 78 35.5 0 87.3 39.8 0 93 42.4 0 98.1 44.7 0 Sur 91.2 41.6 0 104 47.4 40 116.4 53.0 0 84.0 38.3 0 94.5 43.1 0 Free Zone 70.0 35.9 0 74.2 38.0 0 Wadi Adai 119.2 54.3 40 120.9 55.1 40 94.4 43.0 40 85.8 39.1 40 87.1 39.7 40 Wadi Kabir 149.4 80.6 40 151.6 81.8 40 104.6 56.5 40 107.8 58.2 40 109.4 59.0 40 Wadi Sa'a 18 9.2 0 30 15.4 0 40 20.5 0 50.0 25.6 0 Yankit 33 16.9 0 35.5 18.2 0 Yitti 35 17.9 0 38.7 19.8 0 42.9 22.0 0 48.1 24.6 0

Total 33 kV load (MW) 3244.5 1716.9 390.0 3618.6 1909.6 650.0 3965.9 2090.9 630.0 4390.8 2299.2 670.0 4792.9 2509.2 790.0 Sohar Industrial Area-A (132 kV) 30 14.5 0 30 14.5 0 50 24.2 0 50 24.2 0 50 24.2 0 Sohar Industrial Area-A (220 kV) 50 24.2 0 50 24.2 0 120 58.1 0 120 58.1 0 120 58.1 0 Sohar Industrial Area-B (132 kV) 70 33.9 0 120 58.1 0 140 67.8 0 Garamco (132 kV liwa) 20 9.7 0 30 14.5 0 30 14.5 0 30 14.5 0 Zoom Load (Sur Area) 70 33.9 0 70 33.9 0 70 33.9 0 Transport (Muscat) 20 9.7 0 20 9.7 0 20 9.7 0

GRAND TOTAL (MW) 3324.5 1755.6 390.0 3718.6 1958.0 650.0 4325.9 2265.2 630.0 4800.8 2497.8 670.0 5222.9 2717.4 790.0


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Table B.2: 2009 Branch Data Listing

From To Voltage No. Conductor Length pu on 100 MVA base Rating Conductor Length pu on 100 MVA base Rating

Substation Substation (kV) Circuits type (OHL) Km R[pu] X[pu] B[pu] (MVA) type (Cable) Km R[pu] X[pu] B[pu] (MVA)

Al Wasit Al Oha (UAE) 220 2 ARCURIA x 2 46.7 0.0025 0.0310 0.0863 762 − − − − − −

Barka Power station Filaj 220 2 ARCURIA x 2 10 0.0005 0.0066 0.0185 762 − − − − − −

Filaj MS Qaboos 220 2 ARCURIA x 2 60 0.0032 0.0398 0.1109 762 − − − − − −

Filaj MIS 220 2 ARCURIA x 2 63.8 0.0034 0.0423 0.1180 762 − − − − − −

MIS SIS 220 2 ARCURIA x 2 107 0.0057 0.0710 0.1978 762 2500mm2 XLPE cable 0.1 0.000005 0.0001 0.0002 762

SPS SIS 220 2 ARCURIA x 2 38 0.0020 0.0252 0.0703 762 2500mm2 XLPE cable 3 0.0002 0.0020 0.0055 762

SPS Sohar Industrial Area 'A' 220 2 − − − − − − 2500mm2 XLPE cable 3 0.0002 0.0020 0.0055 762

Al Kamil JBB Ali 132 2 YEW x 2 55 0.0135 0.0890 0.0381 261 − − − − − −

Al Kamil Mudharib 132 2 YEW x 2 51.2 0.0126 0.0829 0.0355 261 − − − − − −

Al Kamil Sur 132 2 YEW x 2 73.1 0.0180 0.1184 0.0507 261 − − − − − −

Al Wasit Buraimi 132 2 ELM x1 33 0.0285 0.0777 0.0160 82 − − − − − −

Barka Main Filaj 132 2 YEW x 2 6.3 0.0015 0.0102 0.0044 261 − − − − − −

Dank Al Wasit 132 2 225 AAAC 81 0.0699 0.1906 0.0394 89 − − − − − −

Dank Al Hail 132 1 225 AAAC 52 0.0449 0.1224 0.0253 89 − − − − − −

Filaj Muladha 132 2 YEW x 2 46.5 0.0114 0.0753 0.0322 261 − − − − − −

Ghubrah Boushar 132 2 240 ZTACIR 2.2 0.0018 0.0052 0.0011 261 800mm2 XLPE cable 0.5 0.000414 0.00119 0.000242 261

Ghubrah MS Qaboos 132 2 YEW x 2 6.1 0.0015 0.0099 0.0042 261 800mm2 XLPE cable 0.3 0.0001 0.0005 0.0002 261

Ghubrah MS Qaboos 132 2 YEW x 2 6.6 0.0016 0.0107 0.0046 261 800mm2 XLPE cable 1 0.0002 0.0016 0.0032 261

Ibri Dank 132 2 225 AAAC 54 0.0466 0.1271 0.0263 89 − − − − − −

Izki Mudaybi 132 2 YEW x 2 62.1 0.0153 0.1005 0.0431 261 − − − − − −

Izki Nizwa 132 2 YEW x 2 31.1 0.0076 0.0504 0.0216 261 − − − − − −

Manah Nizwa 132 2 YEW x 2 19.7 0.0048 0.0319 0.0137 261 − − − − − −

Mawellah Seeb Main 132 2 240 ACSR 7.8 0.0066 0.0184 0.0038 101 − − − − − −

Mawellah Rusail 132 2 240 ZTACIR 8 0.0066 0.0191 0.0039 261 800mm2 XLPE cable 0.3 0.0002 0.0007 0.0001 261

MIS Khabourah 132 2 YEW x 2 53.4 0.0131 0.0865 0.0370 261 − − − − − −

Mabalah Barka Main 132 2 YEW x 2 11.6 0.0029 0.0188 0.0080 261 − − − − − −


Page | 99

Table B.2 (continued): 2009 Branch Data Listing



MS Qaboos Jahloot 132 2 YEW x 2 44 0.0108 0.0712 0.0305 261 800mm2 XLPE cable 0.1 0.00002 0.0002 0.0001 261

MS Qaboos Wadi Adai 132 2 YEW x 2 8.2 0.0020 0.0133 0.0057 261 800mm2 XLPE cable 0.2 0.00005 0.0003 0.0001 261

Mudhabi Mudharib 132 2 YEW x 2 60.1 0.0148 0.0973 0.0417 261 − − − − − −

Muladha MIS 132 2 YEW x 2 11.4 0.0028 0.0185 0.0079 261 − − − − − −

Nizwa Nahda (PDO) 132 1 ELM x1 67 0.0578 0.1577 0.0326 82 − − − − − −

Nizwa Bahla 132 2 YEW x1 32 0.0157 0.0725 0.0162 130 − − − − − −

Nizwa Ibri 132 2 YEW x 2 123.5 0.0304 0.2000 0.0856 261 − − − − − −

Rusail Boushar 132 2 240 ZTACIR 31.5 0.0261 0.0750 0.0153 261 800mm2 XLPE cable 0.5 0.000414 0.00119 0.000242 261

Rusail Mabalah 132 2 YEW x 2 13.1 0.0032 0.0212 0.0091 261 − − − − − −

Rusail Sumail 132 2 YEW x 2 31.2 0.0077 0.0505 0.0216 261 − − − − − −

Rusail Wadi Adai 132 2 YEW x 2 46.5 0.0114 0.0753 0.0322 261 800mm2 XLPE cable 0.5 0.0001229 0.0008095 0.0003467 261

Rustaq Muladha 132 2 YEW x 2 29.5 0.0073 0.0478 0.0205 261 − − − − − −

SIS Sohar Grid 132 2 YEW x 2 27.5 0.0068 0.0445 0.0191 261 − − − − − −

Sohar Grid Wadi Jizzi 132 2 YEW x 2 24.7 0.0061 0.0400 0.0171 261 − − − − − −

Sohar Grid_ ext Wadi Jizzi 132 2 YEW x 2 0.1 0.0000 0.0002 0.0001 261 − − − − − −

Sohar Industrial Area 'A'

Sohar Refinery Co. 132 2 − − − − − − 800mm2 XLPE cable 2.2 0.0005 0.0036 0.0015 261

Sumail Izki 132 2 YEW x 2 61 0.0150 0.0988 0.0423 261 − − − − − −

Wadi Adai Al Falaj 132 2 YEW x 2 3 0.0007 0.0049 0.0021 261 800mm2 XLPE cable 0.3 0.0001 0.0005 0.0002 261

Wadi Jizzi Al Wasit 132 2 ELM x 2 36.7 0.0205 0.0667 0.0243 163 − − − − − −

Wadi Jizzi Shinas 132 2 ELM x1 45.6 0.0393 0.1073 0.0222 82 − − − − − −

Wadi Kabir Wadi Adai 132 2 YEW x1 6 0.0029 0.0136 0.0030 130 800mm2 XLPE cable 1.1 0.0005 0.0025 0.0006 130

Manah Adam 132 2 YEW x 2 47 0.0116 0.0761 0.0326 261 − − − − − −

Khabourah SIS 132 2 YEW x 2 70 0.0172 0.1133 0.0485 261 − − − − − −


Page | 100

Table B.3: Progressive Changes to Branch Circuit Data for 2010-2013

2010 Deletions



Filaj MS Qaboos 220 2 ARCURIA x 2 59 0.0031 0.0391 0.1091 760 − − − − − −

Mawellah Seeb Main 132 2 240 ACSR 8 0.0068 0.0189 0.0039 101 − − − − − −

Dank Al Wasit 132 2 225 AAAC 81 0.0699 0.1906 0.0394 89 − − − − − −

Ghubrah Boushar 132 2 240 ZTACIR 4 0.0033 0.0095 0.0019 261 800mm2 XLPE cable 0.5 0.000414 0.00119 0.000242 261

Ghubrah MS Qaboos 132 2 YEW x 2 7 0.0018 0.0116 0.0050 261 800mm2 XLPE cable 0.3 0.0001 0.0005 0.0002 261

Ghubrah MS Qaboos 132 2 YEW x 2 7 0.0018 0.0116 0.0050 261 800mm2 XLPE cable 1 0.0002 0.0016 0.0032 261

Wadi Jizzi Shinas 132 2 ELM x1 45.6 0.0393 0.1073 0.0222 82 − − − − − −

Khabourah SIS 132 2 YEW x 2 70 0.0172 0.1133 0.0485 261 − − − − − −

2010 Additions



Filaj Airport Heights 220 2 ARCURIA x 2 28 0.0015 0.0186 0.0518 762 − − − − − −

Airport Heights MS Qaboos 220 2 ARCURIA x 2 29 0.0015 0.0192 0.0536 762 − − − − − −

Barka Power station Filaj 220 2 ARCURIA x 2 11 0.0006 0.0073 0.0203 762 − − − − − −

Wadi Jizzi Liwa 132 2 YEW x 2 28 0.0068 0.0447 0.0191 261 − − − − − −

Liwa Shinas 132 2 YEW x 2 20 0.0049 0.0324 0.0139 261 − − − − − −

Khabourah Saham 132 2 YEW x 2 40 0.0098 0.0648 0.0277 261 − − − − − −

Saham SIS 132 2 YEW x 2 30 0.0074 0.0486 0.0208 261 − − − − − −

Jahloot Yitti 132 2 ARCURIA x 2 40 0.0021 0.0265 0.0740 762 − − − − − −

Mawellah Seeb Main 132 2 YEW x 2 8 0.0020 0.0130 0.0055 261 − − − − − −

Al Wasit Wadi Sa'a 132 2 225 AAAC 37 0.0319 0.0871 0.0180 89 − − − − − −

Wadi Sa'a Dank 132 2 225 AAAC 43 0.0371 0.1012 0.0209 89 − − − − − −

Airport Heights Wave 132 2 − − − − − − 2000mm2 XLPE cable 10 0.0025 0.0162 0.0069 261

Ghubrah Boushar 132 2 − − − − − − 2500mm2 XLPE cable 2.25 0.0006 0.0036 0.0016 261

Ghubrah MS Qaboos 132 2 − − − − − − 2500mm2 XLPE cable 4.8 0.0012 0.0078 0.0033 261

Ghubrah MS Qaboos 132 2 − − − − − − 2500mm2 XLPE cable 4.35 0.0011 0.0070 0.0030 261


Page | 101

Table B.3 (continued): Progressive Changes to Branch Circuit Data for 2010-2013

2011 Deletions



Filaj MIS 220 2 ARCURIA x 2 64 0.0034 0.0424 0.1183 762 − − − − − −

Wadi Sa'a Dank 132 2 225 AAAC 43 0.0371 0.1012 0.0209 89 − − − − − −

Rusail Wadi Adai 132 2 YEW x 2 46 0.0113 0.0745 0.0319 261 800mm2 XLPE cable 0.5 0.0001229 0.0008095 0.0003467 261

Rusail Boushar 132 2 240 ZTACIR 31.5 0.0261 0.0750 0.0153 261 800mm2 XLPE cable 0.5 0.000414 0.00119 0.000242 261

Al Wasit Buraimi 132 2 ELM x1 33 0.0285 0.0777 0.0160 82 − − − − − −

Dank Al Hail 132 1 225 AAAC 52 0.0449 0.1224 0.0253 89 − − − − − −

2011 Additions



Al Wasit SIS 220 2 ARCURIA x 2 66 0.0035 0.0438 0.1220 762 − − − − − −

Filaj Blue City 220 2 ARCURIA x 2 39.2 0.0021 0.0260 0.0725 762 2500mm2 XLPE cable 6 0.0003 0.0040 0.0111 762

Blue City MIS 220 2 ARCURIA x 2 51.3 0.0027 0.0340 0.0948 762 2500mm2 XLPE cable 6 0.0003 0.0040 0.0111 762

SPS Sohar Industrial Area 'B' 220 2 − − − − − − 2500mm2 XLPE cable 3 0.0002 0.0020 0.0055 762

Al Wasit Ibri 220 2 ARCURIA x 2 134 0.0071 0.0889 0.2477 762 − − − − − −

Rusail Misfah 132 2 YEW x 2 10 0.0025 0.0162 0.0069 261 − − − − − −

Misfah Wadi Adai 132 2 YEW x 2 36 0.0088 0.0583 0.0250 261 − − − − − −

MS Qaboos Qurum 132 2 YEW x 2 10 0.0025 0.0162 0.0069 261 2500mm2 XLPE cable 0.3 0.0001 0.0005 0.0002 261

Qurum Muttrah 132 2 YEW x 2 9.7 0.0024 0.0157 0.0067 261 2500mm2 XLPE cable 3.2 0.0008 0.0052 0.0022 261

Al Wasit Buraimi 132 2 YEW x 2 33 0.0081 0.0534 0.0229 261 − − − − − −

Dank Al Hail 132 2 YEW x 2 52 0.0128 0.0842 0.0361 261 − − − − − −

Jahloot Quriyat 132 2 YEW x 2 30 0.0074 0.0486 0.0208 261 − − − − − −

Shinas Shinas Resort 132 2 YEW x 2 5 0.0012 0.0081 0.0035 261 − − − − − −

Mawellah Rusail 132 2 240 ZTACIR 8 0.0066 0.0191 0.0039 261 800mm2 XLPE cable 0.3 0.0002 0.0007 0.0001 261

Airport Height Bousher 132 2 240 ZTACIR 15 0.0124 0.0357 0.0073 261 − − − − − −

Nakhal Filaj 132 2 YEW x 2 20 0.0049 0.0324 0.0139 261 − − − − − −


Page | 102

Table B.3 (continued): Progressive Changes to Branch Circuit Data for 2010-2013

2012 Deletions From To Voltage No. Conductor Length pu on 100 MVA base Rating Conductor Length pu on 100 MVA base Rating

Substation Substation (kV) Circuits type (OHL) Km R[pu] X[pu] B[pu] (MVA) type (Cable) Km R[pu] X[pu] B[pu] (MVA) Rusail Mabalah 132 2 YEW x2 13.1 0.0032 0.0212 0.0091 261 − − − − − − Izki Nizwa 132 2 YEW x2 33 0.0081 0.0534 0.0229 261 − − − − − − Misfah Wadi Adai 132 2 YEW x2 36 0.0088 0.0583 0.0250 261 − − − − − − Wadi Kabir Wadi Adai 132 2 YEW x1 6 0.0029 0.0136 0.0030 130 800mm2 XLPE cable 1.1 0.0005 0.0025 0.0006 130 Al Wasit Buraimi 132 2 YEW x2 33 0.0081 0.0534 0.0229 261 − − − − − − MS Qaboos Jahloot 132 2 YEW x2 44 0.0108 0.0712 0.0305 261 800mm2 XLPE cable 0.1 0.00002 0.0002 0.0001 261

2012 Additions From To Voltage No. Conductor Length pu on 100 MVA base Rating Conductor Length pu on 100 MVA base Rating

Substation Substation (kV) Circuits type (OHL) Km R[pu] X[pu] B[pu] (MVA) type (Cable) Km R[pu] X[pu] B[pu] (MVA) Jahloot Sur 220 2 ARCURIA x 2 160 0.0085 0.1061 0.2958 762 − − − − − − IPP Barka Misfah 220 2 ARCURIA x 2 35 0.0019 0.0232 0.0647 762 − − − − − − IPP Sohar SIS 220 2 ARCURIA x 2 38 0.0020 0.0252 0.0703 762 2500mm2 XLPE cable 3 0.0002 0.0020 0.0055 762 Misfah Wadi Adai 220 2 ARCURIA x 2 36 0.0019 0.0239 0.0666 762 − − − − − − Misfah Jahloot 220 2 ARCURIA x 2 65 0.0035 0.0431 0.1202 762 − − − − − − Airport Height Ghala 132 2 YEW x2 10 0.0025 0.0162 0.0069 261 SIA-2 Free Zone 132 2 − − − − − − 2500mm2 XLPE cable 10 0.0025 0.0162 0.0069 261 Sohar Multaqa 132 2 YEW x2 10 0.0025 0.0162 0.0069 261 − − − − − − Al Wasit New Buraimi 132 2 YEW x2 20 0.0049 0.0324 0.0139 261 − − − − − − New Buraimi Buraimi 132 2 YEW x2 13 0.0032 0.0210 0.0090 261 − − − − − − MS Qaboos Amerat 132 2 YEW x2 22 0.0054 0.0356 0.0153 261 − − − − − − Amerat Jahloot 132 2 YEW x2 22 0.0054 0.0356 0.0153 261 − − − − − − Wadi Kabir Wadi Adai 132 2 YEW x2 6 0.0015 0.0097 0.0042 261 − − − − − − Barka Main Filaj 132 2 YEW x2 6.3 0.0015 0.0102 0.0044 261 − − − − − − Yitti Yankit 132 2 YEW x2 5 0.0012 0.0081 0.0035 261 − − − − − − Sur Ayjah 132 2 YEW x2 20 0.0049 0.0324 0.0139 261 − − − − − − Mudhabi Raoudha 132 2 YEW x2 40 0.0098 0.0648 0.0277 261 − − − − − − Nizwa Nizwa university 132 2 YEW x2 16 0.0039 0.0259 0.0111 261 − − − − − −

Nizwa university Izki 132 2 YEW x2 16 0.0039 0.0259 0.0111 261 − − − − − −

2013 Additions From To Voltage No. Conductor Length pu on 100 MVA base Rating Conductor Length pu on 100 MVA base Rating

Substation Substation (kV) Circuits type (OHL) Km R[pu] X[pu] B[pu] (MVA) type (Cable) Km R[pu] X[pu] B[pu] (MVA) Ibri Drezz 132 2 YEW x2 30 0.0074 0.0486 0.0208 261 − − − − − − Manah Nizwa 132 1 YEW x2 19.7 0.0048 0.0319 0.0137 261 − − − − − − Mawallih Al Khoud 132 2 YEW x2 10 0.0025 0.0162 0.0069 261 − − − − − −


Page | 103

Table B.4: Grid Stations Transformer Data at peak 2009

Peak 2009 No. of Rating Voltage Vector Tap Tap Step Neutral Min Max Off-Nominal Tap range Reactance Copper

Substation Units (MVA) (kV) Group Side (%) Tap Tap Tap Upper (pu) Lower (pu) (% on rating) Loss (kW)

Al Wasit 2 315 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 23 856.8

Filaj 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 23.25 750

MS Qaboos 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 23.3 750

SIP-1 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 22.075 750

SIS 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 22.075 750

MIS 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 22.075 750

Al Falaj 2 125 132/33 YNd5 HV 1.67 4 1 13 5 -15 19.56 340

Al Hail 2 40 132/33 YNd11 HV 1.25 5 1 17 5 -15 11.92 160

Al Wasit 2 30 132/33 YNd11 HV 1.67 4 1 13 5 -15 12.33 135

Bahla 2 125 132/33 YNd5 HV 1.1 6 1 19 5.5 -15.54 18 340

Barka Main 2 125 132/33 YNd5 HV 1.67 4 1 13 5 -15 17 340

Boushar 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Buraimi 2 125 132/33 YNd5 HV 1.25 5 1 17 5 -15 18.82 220

Dank 2 15 132/33 YNd11 HV 1.25 5 1 17 5 -15 11.97 200

Ghubrah 2 42 132/33 YNd5 HV 1.35 5 1 19 5.4 -15.54 13.2 160

Ibri 2 63 132/33 YNd11 HV 1.25 5 1 17 5 -15 10.9 220

Izki 2 40 132/33 YNd5 HV 1.11 6 1 19 5.5 -15.54 10 150

Jahloot 2 125 132/33 YNd5 HV 1.1 6 1 21 5.55 -15.4 19.03 420

JBB Ali 2 125 132/33 YNd5 HV 1.11 6 1 21 5.55 -15.4 17.84 340

Khaburah 2 125 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 17.78 340

Mawalih 2 125 132/33 YNd5 HV 1.25 5 1 17 5 -15 18.7 445

Mudarib 2 125 132/33 YNd5 HV 1.11 6 1 21 5.55 -15.4 17.81 340

Muladah (old) 2 125 132/33 YNd5 HV 1.67 4 1 13 5 -15 17 340


Page | 104

Table B.4: (continued): Grid Stations Transformer Data at peak 2009

No. of Rating Voltage Vector Tap Tap Step Neutral Min MaxOff-Nominal

Tap range Reactance Copper

Substation Units (MVA) (kV) Group Side (%) Tap Tap Tap Upper (pu) Lower (pu) (% on rating) Substation

Muladah (old) 2 125 132/33 YNd5 HV 1.67 4 1 13 5 -15 17 340

Mobalah 2 125 132/33 YNd5 HV 1.1 6 1 19 5.5 -15.54 18 340

MS Qaboos 2 125 132/33 YNd5 HV 1.67 4 1 13 5 -15 17.44 340

Mudaibi 2 63 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.4 15.21 220

Nizwa 2 125 132/33 YNd5 HV 1.1 6 1 19 5.5 -15.54 18 340

Rusail 4 75 132/33 YNd5 HV 1.25 5 1 17 5 -15 17.85 250

Rustaq 2 63 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 16.8 220

Seeb 2 63 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 16.97 220

Shinas 2 63 132/33 YNd11 HV 1.25 5 1 17 5 -15 10.29 220

SIP-1 2 125 132/33 YNd11 HV 1.67 4 1 13 5 -15 17.78 340

Sohar 2 125 132/33 YNd11 HV 1.11 6 1 20 5.55 -15.54 17.78 340

Sumail 2 63 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 14.74 220

Sur 2 125 132/33 YNd5 HV 1.11 6 1 21 5.55 -15.4 17.85 340

Wadi Adai 2 125 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 17.94 340

Wadi Kabir 2 125 132/33 YNd5 HV 1.11 6 1 19 5.57 -15.54 18.8 340

Adam 2 40 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 10.23 150


Page | 105

Table B.5: Grid Stations Transformer Data at peak 2009

2010 Changes

Substation No. of Rating Voltage Vector Tap Tap Step Neutral Min Max Off-Nominal Tap range Reactance Copper

Units (MVA) (kV) Group Side (%) Tap Tap Tap Upper (pu) Lower (pu) (% on rating) Loss (kW)

Deletions

Seeb 2 63 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 16.97 220

Additions

Airport Hight 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 23 750

Boushar-2 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Liwa 2 125 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 18.45 340

Saham 2 125 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 18.45 340

MIS 2 125 132/33 YNd11 HV 1.11 6 1 20 5.55 -15.54 18 340

Airport Hight 2 125 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 18 340

Azaiba Coast 3 50 132/11 YNd1 HV 1.11 6 1 19 5.55 -15.54 31.5 220

Seeb 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Wadi Sa'a 2 63 132/33 YNd11 HV 1.25 6 1 17 5 -15 10.9 220

Yitti 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340


Page | 106


2011 Changes



Deletions

Dank 2 15 132/33 YNd11 HV 1.25 6 1 17 5 -15 11.97 200

Ibri 2 63 132/33 YNd11 HV 1.25 6 1 17 5 -15 10.9 220

Additions

Sohar industrial area-2 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 22.075 750

Blue City 2 160 220/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.5 750

Ibri 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 17.5 750

MSQ-2 2 125 132/33 YNd5 HV 1.67 4 1 13 5 -15 17.44 340

Mawallah-2 2 125 132/33 YNd5 HV 1.25 5 1 17 5 -15 18.7 445

Qurum 2 125 132/33 YNd5 HV 1.67 4 1 13 5 -15 17 340

Misfah 2 125 132/33 YNd5 HV 1.67 4 1 13 5 -15 17 340

Dank 2 63 132/33 YNd11 HV 1.25 6 1 17 5 -15 10.9 220

Ibri 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.55 17.26 340

Muttrah 2 125 132/33 YNd5 HV 1.67 4 1 13 5 -15 17 340

Nakhal 2 125 132/33 YNd5 HV 1.67 4 1 13 5 -15 17 340

Quriyat 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.55 17.26 340


Page | 107


2012 Changes



Deletions

Mudaibi 2 63 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.4 15.21 220

Izki 2 40 132/33 YNd5 HV 1.11 6 1 19 5.5 -15.54 10 150

Rustaq 2 63 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 16.8 220

Ghubrah 2 42 132/33 YNd5 HV 1.35 5 1 19 5.4 -15.54 13.2 160

Sumail 2 63 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 14.74 220 Additions

Jahloot 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 22.075 750

Sur 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 22.075 750

Wadi Adai 2 500 220/132 YNa0d1 HV 1.11 6 1 20 5.55 -15.54 22.075 750

Amerat 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Multaqa 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Ghala 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

New Buraimi 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Free Zone 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Yankit 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Kamil 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Nizwa University 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Al Raoudha 2 63 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 16.8 220

Mudaibi 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Izki 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Ayjah 2 125 132/33 YNd5 HV 1.11 6 1 21 5.55 -15.4 17.85 340

Rustaq 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Ghubrah 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Sumail 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340


Page | 108


2013 Changes



Deletions

Al Wasit 2 30 132/33 YNd11 HV 1.67 4 1 13 5 -15 12.33 135

Additions

Dreez 2 63 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 16.8 220

Al Khoudh 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Barka Main-2 2 125 132/33 YNd5 HV 1.11 6 1 20 5.55 -15.54 17.26 340

Al Wasit 2 63 132/33 YNd5 HV 1.11 6 1 19 5.55 -15.54 16.8 220


Page | 109

Appendix C: Power System Studies

C.1 Summary of Load Flow Study results The expected performance of the system at peak and minimum demand for each year from 2009 to 2013 are summarised in a series of tables and presented pictorially.

The study results are presented in the following tables:

Table C.1 – Grid transformer loadings at Peak Demand (2009 – 2013)

Table C.2 – Available capacity at Grid Stations (2009 – 2013) for connection of new demand

Table C.3 – Overhead line and cable circuit loadings at peak demand (2009 – 2013)

Table C.4 – Transmission system voltage profile at peak and minimum demand (2009 – 2013)

Table C.5 – Estimation of transmission losses at peak demand (2009-2013)

C.2 Summary of Fault Level Study results The expected maximum busbar 3-phase and single phase fault levels are presented in tabular form as follows:

Table C.6 – Maximum 3-Phase Short Circuit Fault Levels (2009 – 2013)

Table C.7 – Maximum Single-Phase Short Circuit Fault Levels (2009 – 2013).

C.3 Diagrames of the model for the Load Flow Study Results

The result of peak demand load flow studies for the years 2009 through to 2013 are presented as Figures C.1 to C.5 respectively.


Page | 110

Table C.1: Transformer Loading (%) at Grid Station (2009-2013)

Location Total

Transformer Capacity (MVA)

Substation Firm Capacity (MVA)

Transformer loading (%)

2009 2010 2011 2012 2013

220/132 kV Transformers Airport Heights 2 x 500 500 8.57 18.59 28.68 24.19 Al Wasit 2 x 315 315 2.66 23.60 34.98 30.50 49.09 Filaj 2 x 500 500 43.61 44.60 44.36 32.47 41.03 Jahloot 2 x 500 500 18.72 19.53 MS Qaboos 2 x 500 500 39.90 53.13 63.84 30.76 34.94 MIS 2 x 500 500 28.04 30.14 31.86 29.35 28.80 SIS 2 x 500 500 37.00 45.33 29.42 44.41 37.99 Sohar Industrial Port 'A' 2 x 500 500 13.58 10.54 13.77 13.61 13.49 Sohar Industrial Port 'B' 2 x 500 500 7.73 19.61 22.45 Ibri 2 x 500 500 30.76 27.98 30.99 Wadi Adai 2 x 500 500 28.02 19.46 Sur 2 x 500 500 16.34 23.16 220/33 kV Transformers Blue City 2 x 160 160 7.17 17.58 43.68 132/33 kV Transformers Adam 2 x 40 40 28.80 33.27 36.75 39.64 43.27 Airport Heights 2 x 125 125 23.55 26.07 28.70 32.94 Al Falaj 2 x 125 125 79.27 65.70 43.42 44.13 44.47 Al Hail 2 x 40 40 48.50 50.04 55.56 59.01 33.16 Al Wasit 2 x 30 30 45.28 47.35 51.61 57.98 Al Wasit (upgrading) 2 x 63 63 28.65 Al Kamil 2 x 125 125 13.78 32.60 Al Raoudha 2 x 125 125 7.37 14.60 Al Koudh 2 x 125 125 28.18 Ayjah 2 x 125 125 18.49 18.68 Amerat 2 x 125 125 33.46 46.07 Bahla 2 x 125 125 32.52 37.82 41.96 44.39 41.42 Barka Main-A 2 x 125 125 73.20 77.52 58.99 35.91 37.39 Barka Main-B 2 x 125 125 33.25 Bousher-A 2 x 125 125 97.53 53.07 54.79 41.17 42.92 Bousher-B 2 x 125 125 47.24 42.25 26.13 27.19 Bureimi-A 2 x 125 125 46.78 53.10 57.21 38.18 39.77 Bureimi-B 2 x 125 125 33.78 34.81 Dank 2 x 15 15 74.20 77.28


Page | 111

Table C.1 (continued): Transformer Loading (%) at Grid Station (2009-2013)

Location Total



Transformer loading (%)2009 2010 2011 2012 2013

Dank (upgrading) 2 x 63 63 20.34 21.75 23.71 Dreez 2 x 63 63 44.15 Free Zone 2 x 125 125 31.56 33.84 Ghubrah 2 x 42 42 54.31 39.89 28.98 Ghubrah (upgrading) 2 x 125 125 24.24 48.19 Ghubrah Temporary 1 x 40 40 90.07 90.41 Ghala 2 x 125 125 32.71 39.10 Ibri 2 x 63 63 89.21 95.75 Ibri (upgrading) 2 x 125 125 50.98 53.75 44.94 Izki 2 x 40 40 89.24 103.63 116.12 Izki (upgrading) 2 x 125 125 27.49 30.84 Jahloot 2 x 125 125 46.60 42.58 32.01 22.54 24.34 JBB Ali 2 x 125 125 46.41 53.64 58.62 50.19 35.01 Khaborah 2 x 125 125 56.21 31.44 35.68 36.32 39.17 Liwa 2 x 125 125 34.65 39.06 42.87 44.60 MS Qaboos Temporary 1 x 125 125 57.96 MS Qaboos-A 2 x 125 125 83.98 49.92 32.90 34.61 34.54 MS Qaboos-B 2 x 125 125 39.90 43.27 46.34 Mawallah Temporary 1 x 125 125 54.59 Mawalleh-A 2 x 125 125 77.22 36.95 31.12 32.84 35.25 Mawalleh-B 2 x 125 125 35.77 41.39 31.37 Mobalah 2 x 125 125 35.70 32.53 35.51 37.13 40.02 Mudaibi 2 x 63 63 63.04 73.47 82.72 Mudaibi (upgrading) 2 X 125 125 33.71 38.08 Mudarib 2 X 125 125 47.03 54.46 60.42 40.74 46.36 Muladah 2 x 125 125 95.53 57.69 60.55 63.48 35.15 Multaqa 2 x 125 125 40.13 41.07 Muttrah 2 x 125 125 42.07 44.03 44.08 Misfah 2 x 125 125 37.58 36.58 42.56 MIS 2 x 125 125 38.41 43.03 45.01 42.89 Nakhal 2 x 125 125 19.27 33.46 42.69 Nizwa 2 x 125 125 48.02 55.79 61.89 40.16 44.17 Nizwa University 2 x 125 125 33.62 37.37 Quriyat 2 x 125 125 14.59 15.59 17.74 Qurum 2 x 125 125 28.57 45.24 48.65 Rusail 4 x 75 225 49.83 61.17 46.28 45.88 49.96 Rustaq 2 x 63 63 82.00 92.78 98.92 Rustaq (upgrading) 2 x 125 125 42.86 45.48 Saham 2 x 125 125 38.14 45.06 45.23 47.80


Page | 112

Location Total



Transformer loading (%)2009 2010 2011 2012 2013

Seeb Main Temporary 1 x 63 63 77.13 Seeb Main 2 x 63 63 112.45 Seeb Main (upgrading) 2 x 125 125 30.82 51.73 47.27 37.25 Shinas 2 x 63 63 65.41 30.85 33.99 36.37 39.18 Sohar 2 x 125 125 80.65 50.90 56.81 33.69 35.73 Sohar Temporary 1 x 60 60 53.46 52.33 53.82 54.01 55.69 Sohar Industrial Area 'A' 2 x 125 125 40.09 39.68 41.94 41.07 42.00 Sumail 2 x 63 63 66.85 76.25 85.15 Sumail (upgrading) 2 x 125 125 42.24 45.72 Sur 2 x 125 125 45.67 45.31 53.50 38.18 43.28 Wadi Adai 2 x 125 125 52.13 51.10 38.94 35.03 35.21 Wadi Kabir 2 x 125 125 57.13 68.29 44.34 45.26 45.88 Wadi Sa'a 2 x 63 63 17.31 26.77 37.16 44.77 Yankit 2 x 125 125 15.91 17.43 Yitti 2 x 125 125 17.06 18.88 20.66 23.62 132/11 kV Transformers Azaiba Coast (Wave Project) 3 x 50 100 23.99 26.63 28.59 32.32

Color Key:

Transformers not in service


Page | 113

Table C.2: Available Capacity at Grid Stations (2009 – 2013) for Connection of New Demand

Location

Total Transformer

Capacity (MVA)

Substation Firm Capacity

(MVA)

Available capacity (MVA)

2009 2010 2011 2012 2013

220/132 kV Transformers Airport Heights 2 x 500 500 414.3 314.1 213.2 258.1 Al Wasit 2 x 315 315 298.2 166.3 94.6 122.8 5.7 Filaj 2 x 500 500 63.9 54.0 56.4 175.3 89.7 Jahloot 2 x 500 500 312.8 304.7

MS Qaboos 2 x 500 500 101.0 -31.3 -

138.4 192.4 150.6 MIS 2 x 500 500 219.6 198.6 181.4 206.5 212.0 SIS 2 x 500 500 130.0 46.7 205.8 55.9 120.1 Sohar Industrial Port 'A' 2 x 500 500 364.2 394.6 362.3 363.9 365.1 Sohar Industrial Port 'B' 2 x 500 500 422.7 303.9 275.5 Ibri 2 x 500 500 192.4 220.2 190.1 Wadi Adai 2 x 500 500 219.8 305.4 Sur 2 x 500 500 336.6 268.4 220/33 kV Transformers Blue City 2 x 160 160 137.1 103.7 20.2 132/33 kV Transformers Adam 2 x 40 40 17.0 13.4 10.6 8.3 5.4 Airport Heights 2 x 125 125 66.1 59.8 53.2 42.6 Al Falaj 2 x 125 125 -73.2 -39.2 16.5 14.7 13.8 Al Hail 2 x 40 40 1.2 0.0 -4.5 -7.2 13.5 Al Wasit 2 x 30 30 2.8 1.6 -1.0 -4.8 Al Wasit (upgrading) 2 x 63 63 26.9 Al Kamil 2 x 125 125 90.6 43.5 Al Raoudha 2 x 125 125 106.6 88.5 Al Koudh 2 x 125 125 54.6 Ayjah 2 x 125 125 78.8 78.3 Amerat 2 x 125 125 41.4 9.8 Bahla 2 x 125 125 43.7 30.5 20.1 14.0 21.4 Barka Main-A 2 x 125 125 -58.0 -68.8 -22.5 35.2 31.5 Barka Main-B 2 x 125 125 41.9

Bousher-A 2 x 125 125 -

118.8 -7.7 -12.0 22.1 17.7 Bousher-B 2 x 125 125 6.9 19.4 59.7 57.0 Bureimi-A 2 x 125 125 8.0 -7.8 -18.0 29.6 25.6 Bureimi-B 2 x 125 125 40.5 38.0


Page | 114

Table C.2 (continued): Available Capacity at Grid Stations (2009 – 2013) for Connection of New Demand

Location

Total Transformer

Capacity (MVA)


(MVA)


2009 2010 2011 2012 2013

Dank 2 x 15 15 -7.3 -8.2 Dank (upgrading) 2 x 63 63 37.4 35.6 33.1 Dreez 2 x 63 63 7.4 Free Zone 2 x 125 125 46.1 40.4 Ghubrah 2 x 42 42 -3.6 8.5 17.7 Ghubrah (upgrading) 2 x 125 125 64.4 4.5 Ghubrah Temporary 1 x 40 40 -32.1 -32.3 Ghala 2 x 125 125 43.2 27.3 Ibri 2 x 63 63 -49.4 -57.6 Ibri (upgrading) 2 x 125 125 -2.5 -9.4 12.7 Izki 2 x 40 40 -31.4 -42.9 -52.9 Izki (upgrading) 2 x 125 125 56.3 47.9 Jahloot 2 x 125 125 8.5 18.6 45.0 68.6 64.1 JBB Ali 2 x 125 125 9.0 -9.1 -21.5 -0.5 37.5 Khaborah 2 x 125 125 -15.5 46.4 35.8 34.2 27.1 Liwa 2 x 125 125 38.4 27.4 17.8 13.5 MS Qaboos Temporary 1 x 125 125 -19.9 MS Qaboos-A 2 x 125 125 -85.0 0.2 42.8 38.5 38.6 MS Qaboos-B 2 x 125 125 25.2 16.8 9.1 Mawalleh Temporary 1 x 125 125 -11.5 Mawalleh-A 2 x 125 125 -68.0 32.6 47.2 42.9 36.9


Page | 115

Table C.2 (continued): Available Capacity at Grid Stations (2009 – 2013) for Connection of New Demand

Location

Total Transformer

Capacity (MVA)


(MVA)


2009 2010 2011 2012 2013

Mawalleh-B 2 x 125 125 35.6 21.5 46.6 Mobalah 2 x 125 125 35.8 43.7 36.2 32.2 25.0 Mudaibi 2 x 63 63 -16.4 -29.6 -41.2 Mudaibi (upgrading) 2 X 125 125 40.7 29.8 Mudarib 2 X 125 125 7.4 -11.1 -26.1 23.2 9.1 Muladah 2 x 125 125 -113.8 -19.2 -26.4 -33.7 37.1 Multaqa 2 x 125 125 24.7 22.3 Muttrah 2 x 125 125 19.8 14.9 14.8 Misfah 2 x 125 125 31.0 33.5 18.6 MIS 2 x 125 125 29.0 17.4 12.5 17.8 Nakhal 2 x 125 125 76.8 41.4 18.3 Nizwa 2 x 125 125 5.0 -14.5 -29.7 24.6 14.6 Nizwa University 2 x 125 125 40.9 31.6 Quriyat 2 x 125 125 88.5 86.0 80.7 Qurum 2 x 125 125 53.6 11.9 3.4 Rusail 4 x 75 225 75.5 41.5 86.1 87.3 75.1 Rustaq 2 x 63 63 -40.3 -53.9 -61.6 Rustaq (upgrading) 2 x 125 125 17.8 11.3 Saham 2 x 125 125 29.6 12.4 11.9 5.5

Seeb Main Temporary 1 x 63 63 -34.2 Seeb Main 2 x 63 63 -78.7 Seeb Main (upgrading) 2 x 125 125 48.0 -4.3 6.8 31.9 Shinas 2 x 63 63 -19.4 24.1 20.2 17.2 13.6 Sohar 2 x 125 125 -76.6 -2.2 -17.0 40.8 35.7 Sohat Temporary 1 x 60 60 -4.1 -2.8 -4.6 -4.8 -6.8 Sohar Industrial Area 'A' 2 x 125 125 24.8 25.8 20.1 22.3 20.0 Sumail 2 x 63 63 -21.2 -33.1 -44.3 Sumail (upgrading) 2 x 125 125 19.4 10.7 Sur 2 x 125 125 10.8 11.7 -8.7 29.5 16.8 Wadi Adai 2 x 125 125 -5.3 -2.7 27.6 37.4 37.0

Wadi Kabir 2 x 125 125 -17.8 -45.7 14.1 11.8 10.3 Wadi Sa'a 2 x 63 63 41.2 29.3 16.2 6.6 Yankit 2 x 125 125 85.2 81.4 Yitti 2 x 125 125 82.4 77.8 73.4 66.0 132/11 kV Transformers Azaiba Coast (Wave Project) 3 x 50 100 64.0 60.1 57.1 51.5

Color Key:

Transformers not in service


Page | 116

Table C.3: Overhead Line and Cable Circuit Loading (%) at Peak Demand (2009-2013)

Send Bus Receive Bus Voltage (kV)

No. of circuits


Circuit Loading at Max Demand (%)

2009 2010 2011 2012 2013

Al Wasit Al Oha (UAE) 220 2 762 13.28 13.43 15.88 Al Wasit SIS 220 2 762 18.91 17.10 22.64 New Barka IPP Misfah 220 2 762 39.74 40.01 New Sohar IPP SIS 220 2 762 38.72 39.27 Airport Heights Filaj 220 2 762 40.2 53.81 38.75 36.64 Airport Heights MS Qaboos 220 2 762 34.81 41.82 20.15 22.89 Barka Power station Filaj 220 2 762 67.55 Barka Power station Filaj 220 4 762 34.88 42.71 31.20 34.41 Filaj MS Qaboos 220 2 760 26.14 Filaj MIS 220 2 762 13.76 4.43 Filaj Blue City 220 2 762 5.23 4.35 10.17 Blue City MIS 220 2 762 8.35 5.74 4.10 MIS SIS 220 2 762 6.68 19.35 17.13 17.98 16.57 SPS SIS 220 2 762 28.85 47.60 53.38 24.33 26.66 SPS Sohar Industrial Area 'A' 220 2 762 12.40 10.34 17.19 17.18 17.14 SPS Sohar Industrial Area 'B' 220 2 762 5.06 12.85 14.71 Al Wasit Ibri 220 2 762 20.15 18.33 20.31 Jahloot Sur 220 2 762 11.04 15.79 Misfah Jahloot 220 2 762 22.02 27.38 Misfah Wadi Adai 220 2 762 18.36 12.78 Al Kamil JBB Ali 132 2 261 22.26 25.67 28.11 24.07 16.79 Al Kamil Mudharib 132 2 261 19.07 20.13 30.42 23.22 30.39 Al Kamil Sur 132 2 261 21.90 21.71 38.65 7.11 5.67 Al Wasit Buraimi 132 2 82 70.31 79.98 Al Wasit Buraimi 132 2 261 26.93 Al Wasit Buraimi-2 132 2 261 33.60 34.86 Buraimi-2 Buraimi 132 2 261 17.97 18.72


Page | 117

Table C.3 (continued): Overhead Line and Cable Circuit Loading (%) at Peak Demand (2009-2013)


No. of circuits



2009 2010 2011 2012 2013

Barka Main Filaj 132 2 261 66.19 87.61 70.22 Barka Main Filaj 132 4 261 17.48 26.17 Dank Al Wasit 132 2 89 51.00 Dank Al Hail 132 1 89 43.52 46.08 Dank Al Hail 132 2 261 8.53 9.06 5.84 Filaj Muladha 132 2 261 17.90 8.48 12.65 12.69 6.20 Ghubrah Boushar 132 2 261 43.35 Ghubrah Boushar 132 2 261 35.73 33.24 17.92 32.22 Ghubrah MS Qaboos 132 4 261 24.92 Ghubrah MS Qaboos 132 4 261 12.64 13.51 38.58 42.52 Ibri Dank 132 2 89 19.53 54.23 37.74 40.17 29.44 Ibri Dreez 132 2 261 10.64 Izki Mudabi 132 2 261 18.91 27.67 52.59 16.09 12.42 Izki Nizwa 132 2 261 18.42 21.02 38.15 Manah Nizwa 132 2 261 59.89 61.35 60.67 47.81 Manah Nizwa 132 3 261 38.96 Mawellah Seeb Main 132 2 101 70.42 Mawellah Seeb Main 132 2 261 24.09 24.81 22.67 17.87 Mawellah Rusail 132 2 261 66.67 55.57 Mawellah Rusail 132 4 261 28.64 29.15 32.09 Mawellah Al Khoudh 132 2 261 13.51 MIS Khabourah 132 2 261 12.37 11.98 4.53 4.36 4.02 Mabalah Barka Main 132 2 261 34.50 53.51 43.37 17.81 19.20 MS Qaboos Jahloot 132 2 261 22.35 27.90 29.85 MS Qaboos Amerat 132 2 261 13.07 22.07 Amerat Jahloot 132 2 261 5.45 MS Qaboos Wadi Adai 132 2 261 60.02 55.24 45.77 6.59 26.09 Mudhabi Mudharib 132 2 261 5.37 12.83 37.16 6.22 8.97 Muladha MIS 132 2 261 47.42 49.80 44.41 38.62 32.09


Page | 118



No. of circuits



2009 2010 2011 2012 2013

Nizwa Bahla 132 2 130 31.20 36.30 40.26 42.58 39.74 Nizwa Ibri 132 2 261 16.37 12.56 20.73 12.42 22.23 Rusail Boushar 132 2 261 5.44 15.68 Rusail Mabalah 132 2 261 24.88 38.32 26.83 Rusail Sumail 132 2 261 35.34 40.81 51.35 36.61 27.46 Rusail Wadi Adai 132 2 261 31.91 33.46 Rusail Misfah 132 2 261 34.19 17.38 20.41 Misfah Wadi Adai 132 2 261 16.69 Rustaq Muladha 132 2 261 19.82 22.43 23.91 20.56 21.81 SIS Sohar Grid 132 2 261 47.09 38.09 20.00 39.40 38.66 Sohar Grid Wadi Jizzi 132 2 261 9.10 8.03 25.84 2.35 27.18 Sohar Grid Multaqa 132 2 261 19.24 19.69 SIA-2 Free Zone 132 2 261 15.13 16.23 Sumail Izki 132 2 261 21.60 23.67 32.35 18.05 6.26 Wadi Adai Al Falaj 132 2 261 38.01 31.50 20.82 21.16 21.32 Wadi Jizzi Al Wasit 132 2 163 68.54 57.85 21.92 25.93 16.42 Wadi Jizzi Shinas 132 1 82 105.2 Wadi Jizzi Liwa 132 2 261 26.32 31.48 34.25 35.76 Liwa Shinas 132 2 261 7.51 8.11 8.74 9.26 Wadi Kabir Wadi Adai 132 2 130 54.81 65.52 42.54 Wadi Kabir Wadi Adai 132 2 261 21.71 22.01 Manah Adam 132 2 261 4.41 5.10 5.63 6.08 6.63 Khabourah SIS 132 2 261 22.54 Khabourah Saham 132 2 261 24.70 20.86 20.28 16.26 Saham SIS 132 2 261 42.48 41.11 41.29 37.83 Jahloot Yitti 132 2 261 8.17 9.04 17.45 19.60 Al Wasit Wadi Sa'a 132 2 89 98.52 18.65 26.25 31.44 Wadi Sa'a Dank 132 2 89 87.22 Airport Heights Wave 132 2 261 6.90 7.66 8.23 9.30


Page | 119



No. of circuits



2009 2010 2011 2012 2013

Airport Heights Boushar 132 2 261 14.10 17.64 Airport Heights Ghala 132 2 261 15.69 18.75 MS Qaboos Qurum 132 2 261 32.81 41.53 43.04 Qurum Muttrah 132 2 261 20.17 21.12 21.14 Jahloot Quriyat 132 2 261 6.99 7.47 8.50 Nakhal Filaj 132 2 261 9.24 16.05 20.48 Yitti Yankit 132 2 261 7.62 8.35 Sur Ayjah 132 2 261 8.87 8.96 Mudhabi Raoudha 132 2 261 3.54 3.53 Nizwa Nizwa university 132 2 261 29.42 37.92 Nizwa university Izki 132 2 261 16.40 20.22 Color Key:

Lines or cables not in service


Page | 120

Table C.4: Transmission System Voltage Profile at Peak Demand (2009 - 2013)

Location Busbar Voltage at Peak Demand (per unit)

2009 2010 2011 2012 2013 220 kV Busbars Airport Heights 0.98 1.00 1.01 0.97 Al Wasit 0.96 1.03 0.98 1.02 0.99 Blue City 1.03 1.00 1.01 Barka Power Station 0.99 1.02 1.04 1.04 1.03 New Barka IPP 1.04 1.01 New Sohar IPP 1.05 1.02 New Ghubrah IWPP 1.01 Filaj 0.98 0.98 1.03 1.03 1.01 Jahloot 1.00 0.98 Misfah 1.02 1.00 MS Qaboos 0.95 0.96 0.98 1.00 0.94 MIS 0.97 0.99 1.01 1.02 1.01 SIS 1.00 1.01 1.02 1.03 1.02 SPS 1.03 1.06 1.05 1.06 1.05 Sohar Industrial Port 'A' 1.03 1.06 1.05 1.06 1.05 Sohar Industrial Port 'B' 1.05 1.06 1.05 Ibri 0.93 0.96 0.97 Wadi Adai 1.00 0.99 Sur 1.00 0.99


Page | 121

Table C.4 (continued): Transmission System Voltage Profile at Peak Demand (2009 - 2013)

Location Busbar Voltage at Peak Demand (per unit) 2009 2010 2011 2012 2013

132 kV Busbars Ayjah 1.00 1.00 Al Rawdh 0.96 0.96 Adam 1.00 0.99 1.00 0.99 1.02 Amerat 0.98 0.99 Al Falaj 0.94 0.97 0.98 0.98 0.99 Al Hayl 0.88 0.87 0.93 0.95 0.97 Al Kamil Power Station 0.95 0.95 0.98 1.01 1.01 Al Wasit 0.96 0.99 1.05 1.00 1.05 Al Khoudh 0.99 Airport Heights 0.99 0.99 1.00 0.96 Azaiba Coast 0.98 0.98 1.00 0.96 Bahla 0.95 0.93 0.94 0.95 0.99 Barka Main 0.94 0.97 0.98 1.00 0.98 Bousher 0.94 0.96 0.98 1.00 1.01 Buraimi A 0.92 0.95 1.03 0.98 1.03 Buraimi B 0.99 1.03 Dank 0.91 0.91 0.94 0.96 0.96 Dreez 0.96 Filaj 0.95 0.98 0.99 1.00 0.99 Free Zone 1.03 1.02 Ghoubrah 0.95 1.01 Ghubrah-A 0.96 0.98 1.00 Ghubrah-B 0.98 0.98 0.99 Ghala 1.00 0.95 Ibri 0.91 0.90 0.97 1.00 0.97 Izki 0.94 0.93 0.94 0.97 0.98 Jahloot 0.92 0.96 0.96 0.98 0.97 JBB Ali 0.92 0.91 0.94 0.98 0.98 Khaborah 0.96 1.00 0.98 1.00 0.98 Liwa 1.00 1.02 0.99 1.02 MS Qaboos 0.95 0.98 0.98 0.98 1.00 Manah Power Stataion 1.00 0.99 1.01 1.00 1.03 Mawalleh 0.96 0.99 1.00 1.04 0.99 MIS 0.95 0.97 0.98 1.00 0.99 Mobella 0.95 0.97 0.98 1.00 0.98 Misfah 1.00 1.05 1.00 Mudaibi 0.92 0.91 0.91 0.96 0.96 Mudarib 0.92 0.91 0.92 0.97 0.97 Muladah 0.94 0.96 0.97 0.99 0.98 Muttrah 0.97 0.97 0.99 Multaqa 1.02 1.01 Nakhal 0.99 1.00 0.98


Page | 122



Nizwa 0.96 0.95 0.97 0.98 1.00 Nizwa University 0.97 0.99 Qurum 0.98 0.97 0.99 Quriyat 0.96 0.98 0.96 Rusail 1.05 1.01 Rusail-A 0.95 0.97 1.01 Rusail-B 0.98 1.01 0.98 Rustaq 0.92 0.95 0.95 0.98 0.97 Saham 1.02 0.98 1.02 0.98 Seeb Main 0.95 0.98 0.99 1.04 0.99 Shinas 0.93 1.01 1.02 1.01 1.02 SIS 1.02 1.05 1.01 1.05 1.01 Sohar 0.99 1.03 1.01 1.03 1.01 Sohar Industrial Area 'A' 1.02 1.04 1.00 1.04 1.03 Sohar Industrial Area 'B' 1.04 1.04 1.03 Sumail 0.94 0.94 0.95 1.01 0.98 Sur 0.91 0.93 1.00 1.00 1.00 Wadi Adai 0.94 0.97 0.98 0.98 0.99 Wadi Jizzi Power Station 1.00 1.02 1.04 1.03 1.04 Wadi Kabir 0.93 0.96 0.97 0.98 0.99 Wadi Sa'a 0.95 1.04 0.99 1.03 Yankit 0.96 0.95 Yitti 0.95 0.95 0.97 0.95


Page | 123



33 kV busbars Ayjah 1.00 1.00

Al Rawdh 1.00 1.00 Adam 0.99 1.00 0.99 1.00 1.00

Amerat 0.99 1.00 Al Falaj 0.99 1.00 1.00 1.00 0.99 Al Hayl 0.99 0.99 0.99 1.00 1.00

Al Kamil Power Station 1.00 1.00 Al Wasit 1.00 1.00 1.00 1.00 1.00

Al Khoudh 1.00 Airport Heights 1.00 1.00 1.00 0.99

Bahla 1.00 1.00 1.00 1.00 0.99 Blue City 1.01 1.00 0.99

Barka Main A 0.99 1.01 1.00 0.99 1.00 Barka Main B 1.00

Bousher A 1.00 1.00 0.99 1.00 0.99 Bousher B 1.00 1.00 1.00 1.00 Buraimi A 1.01 1.00 1.00 0.99 1.00 Buraimi B 0.99 1.00

Dank 1.00 0.99 1.00 0.99 0.99 Dreez 0.99

Free Zone 1.01 0.99 Ghubrah 0.97 1.00 0.96 1.00 0.99

Ghala 0.99 1.00 Ibri 1.00 1.00 1.00 1.00 0.99 Izki 0.99 0.99 0.98 0.99 1.00

Jahloot 0.99 1.00 1.00 1.00 1.00 JBB Ali 0.99 1.00 0.98 0.99 1.00

Khaborah 1.00 1.00 1.00 1.00 1.00 Liwa 1.00 1.00 0.99 0.99

MS Qaboos A 1.00 0.99 0.99 0.99 0.99 MS Qaboos B 1.00 1.00 1.00 1.00 Mawalleh A 0.99 1.00 1.00 1.00 0.99 Mawalleh B 1.00 0.99 1.01 1.00

MIS 1.00 1.00 0.99 0.99 Mobella 0.99 0.99 1.00 1.00 1.00 Misfah 1.00 1.00 1.00

Mudaibi 1.00 0.99 0.99 1.00 1.00 Mudarib 1.00 0.99 1.00 1.00 1.00 Muladah 0.99 0.99 1.00 1.00 0.99 Muttrah 0.99 0.99 1.01


Page | 124



Multaqa 0.99 0.99 Nakhal 1.00 1.00 1.00 Nizwa 0.99 1.00 0.98 1.00 0.99 Nizwa University 1.00 0.99 Qurum 1.00 1.01 0.99 Quriyat 1.00 1.00 0.99 Rusail 1.00 0.99 0.99 1.00 1.00 Rustaq 1.00 0.99 0.99 1.00 1.00 Saham 1.00 0.99 1.00 0.99 Seeb Main 0.98 0.99 0.99 1.00 0.99 Shinas 1.00 1.01 1.00 1.00 0.99 Sohar 0.99 1.00 1.00 1.00 1.00 Sohar Industrial Area 'A' 1.00 1.00 1.00 1.00 0.99 Sumail 0.98 0.99 0.98 1.00 0.99 Sur 0.98 1.00 1.00 1.00 1.00 Wadi Adai 0.99 1.00 0.99 1.00 1.00 Wadi Kabir 0.98 0.99 1.00 1.00 0.99 Wadi Sa'a 0.99 1.00 0.99 1.00 Yankit 0.99 1.00 Yitti 0.99 0.99 0.99 0.99 11 kV busbars Azaiba Coast 0.99 0.99 0.99 0.99 Colour Key:

Substation not in service


Page | 125

Table C.5: Estimation of Transmission Losses at Peak Demand (2009-2013)

2009 2010 2011 2012 2013

MW MVAr MW MVAr MW MVAr MW MVAr MW MVAr Installed Capacity 4360 4412 5291 5770 6179

Gross Generation 3523 2384 3474 2126 4134 2363 4586 2268 4960 2538 Desalination and Auxiliary

Load 166 85 166 85 174 89 178 91 200 103

Net Generation 3357 2299 3308 2041 3959 2273 4407 2177 4760 2436

External Infeed 40 25 501 310 464 287 468 290 546 338

Load 3324.5 1755.6 3718.6 1958.0 4325.9 2265.2 4800.8 2497.8 5222.9 2717.4

Grid Losses 72.5 568.4 90.4 393.0 97.1 294.8 74.2 -30.8 83.1 56.6

Grid Losses (%) 2.1 2.4 2.2 1.5 1.6

Load Growth Rate (%) --- 12 16 11 9


Page | 126

Table C.6: Maximum 3-Phase Short Circuit Fault Levels

Substations Voltage Switchgear

Fault 2009 2010 2011 2012 2013

(kV) Rating (kA) Ik"

(kA) Ik"

(kA) Ik"

(kA) Ik"

(kA) Ik"

(kA) Al Wasit (Interconnected) 220 40 11.75 11.85 19.40 19.90 19.90 Airport Heights 220 40 16.92 20.12 18.70 16.60Blue City 220 40 17.96 16.47 16.00 Barka PS 220 40 26.90 27.44 32.34 26.80 25.45 New Barka IPP 220 50 11.08 10.84Filaj 220 40 25.17 26.45 30.81 25.73 24.20 Jahloot 220 40 8.97 6.97 MIS 220 40 14.47 15.63 15.84 15.10 14.85Misfah 220 40 10.98 10.58 MSQ 220 40 15.16 13.36 14.86 14.70 13.73 sipA 220 40 12.66 22.72 28.28 26.21 26.20sipB 220 40 28.25 26.19 26.17 Sis 220 40 13.09 17.36 23.37 26.65 26.59 Sps 220 40 12.83 23.27 29.14 26.95 26.93New Sohar IPP 220 50 16.89 16.90 Ibri 220 40 6.54 6.60 6.62 Wadi Adai 220 40 9.77 10.12Sur 220 40 5.24 4.83 Ayjah 132 31.5 6.55 6.26 Al Rawdh 132 31.5 5.31 5.31 Amerat 132 31.5 15.00 11.80Al Khoudh 132 31.5 13.70 Adam 132 31.5 6.38 6.36 6.50 6.54 6.67 Al falaj 132 31.5 21.87 15.88 16.55 17.24 17.51Al hail 132 31.5 2.27 3.30 3.00 3.01 3.01 Al kamil 132 40 9.31 8.44 8.46 11.27 11.07 Al wasit 132 31.5 15.92 16.35 16.48 16.20 16.20


Page | 127

Airport Heigh 132 31.5 12.90 17.82 16.97 12.78Azaiba Coast 132 31.5 11.87 15.84 15.18 11.78 JBB Ali 132 40 4.98 4.72 4.72 5.49 5.44 Bahla 132 31.5 6.59 6.56 6.79 6.86 6.94Barka 132 31.5 23.27 23.14 22.46 16.73 16.40 Boushar 132 31.5 27.76 13.19 14.37 14.33 11.34 Buraimi-A 132 40 6.57 6.63 8.57 8.49 8.49Buraimi-B 132 31.5 10.45 10.45 Dank 132 40 5.91 5.96 4.08 4.09 4.10 Dreez 132 31.5 6.39Filaj 132 31.5 25.52 26.00 26.26 19.17 18.74

Substations

Voltage (kV)

Switchgear Fault

Rating (kA)

2009 2010 2011 2012 2013 Ik" (kA)

Ik" (kA)

Ik" (kA)

Ik" (kA)

Ik" (kA)

Free Zone 132 31.5 13.93 13.93 New Ghubrah IWPP 132 40 20.95 Ghubrah 132 26.2 32.78 11.52 Ghubrah-A 132 26.2 13.11 14.29 14.22 Ghubrah-B 132 31.5 18.86 19.98 21.59 Ghala 132 31.5 13.18 10.51 Ibri 132 31.5 5.81 5.83 9.37 9.45 9.48 Izki 132 31.5 12.73 12.49 12.73 13.27 13.41 Jahloot 132 40 9.52 7.98 8.17 13.57 7.81 khaburah 132 31.5 11.09 11.62 11.91 11.75 11.70 Liwa 132 31.5 10.48 10.41 10.00 10.00 Mawalih 132 31.5 13.41 12.61 14.77 17.85 17.87 Mudarib 132 40 7.55 7.17 7.20 8.28 8.22 MIS 132 31.5 18.45 19.40 19.90 18.55 18.32 Multaqa 132 31.5 13.35 13.35 Muladah 132 31.5 17.00 17.66 18.06 16.45 16.25 Manah 132 31.5 13.02 12.95 13.53 13.72 14.29 Mobalah 132 31.5 23.36 22.01 19.94 11.73 11.57


Page | 128

Misfah 132 31.5 16.47 16.04 16.06MSQ 132 31.5 31.49 19.19 20.35 22.37 21.95 Mudaibi 132 40 7.91 7.70 7.75 8.31 8.31 Muttrah 132 31.5 11.72 12.37 12.32Nahda 132 31.5 4.19 4.18 4.21 4.22 4.23 Nakhal 132 31.5 13.88 11.62 11.46 Nizwa 132 31.5 13.36 13.25 14.19 14.51 14.87Nizwa Universtity 132 31.5 13.40 13.63 Quram 132 31.5 15.01 16.09 16.00 Quraiyat 132 31.5 5.77 8.02 5.59Rusail 132 31.5 22.04 22.07 Rusail-A 132 31.5 26.21 23.27 17.52 Rusail-B 132 31.5 18.84 17.28 19.87 Rustaq 132 31.5 9.87 10.09 10.22 9.68 9.61 Saham 132 31.5 13.16 13.66 13.70 13.67 Seeb 132 31.5 10.51 10.76 12.30 14.36 14.37 Shinas 132 40 5.69 7.72 7.69 7.46 7.46 sipA 132 31.5 11.18 15.34 16.57 16.15 16.15 sipB 132 31.5 15.78 15.38 15.37 SIS 132 31.5 18.07 20.59 22.11 22.58 22.54 Sohar 132 31.5 16.31 17.63 17.70 17.28 17.26 Sumail 132 31.5 13.99 13.41 12.73 13.37 13.41

Substations

Voltage (kV)

Switchgear Fault

Rating (kA)

2009 2010 2011 2012 2013 Ik" (kA)

Ik" (kA)

Ik" (kA)

Ik" (kA)

Ik" (kA)

Sur 132 40 5.09 4.12 4.13 8.42 7.94 Wadi Adai 132 31.5 24.92 17.42 18.24 19.09 19.41 Wadi Jizzi 132 31.5 19.31 20.91 20.65 19.10 19.09 Wadi Kabir 132 31.5 16.14 12.63 13.06 14.74 14.94 Wadi Sa'a 132 31.5 7.98 6.42 6.38 6.38 Yankit 132 31.5 6.66 4.89 Yitti 132 31.5 5.17 5.25 7.06 5.11


Page | 129

Ayjah 33 25 13.63 13.30Al Rawdh 33 25 12.16 11.27 Amerat 33 25 18.62 17.19 Al Koudh 33 25 18.43Adam 33 25 9.56 9.55 9.63 9.65 9.72 Al falaj 33 25 20.24 18.61 18.83 19.05 19.13 Al hail 33 25 5.44 6.67 6.32 6.33 6.33alkamil 33 25 17.70 17.57 Al wasit 33 25 8.36 8.39 8.41 8.39 17.50 Airport Heigh 33 25 18.29 20.28 19.99 18.23JBB Ali 33 25 11.71 11.34 11.35 12.39 12.32 Bahla 33 25 13.69 13.66 13.90 13.97 14.05 Blue City 33 31.5 25.88 25.38 25.21 Barka-A 33 25 22.26 22.22 22.06 20.35 20.22 Barka-B 33 25 20.22 BousharA 33 25 23.18 18.87 19.41 19.39 17.79 BousharB 33 25 18.87 19.41 19.39 17.79 Buraimi-A 33 25 13.76 13.84 15.44 15.38 15.37 Buraimi-B 33 25 16.74 16.74 Dank 33 25 4.10 4.10 9.75 9.77 9.78 Dreez 33 25 12.06 Free Zone 33 25 18.56 18.56 Ghubrah 33 25 17.13 15.57 15.66 23.26 21.18 Ghubrah Temporary 33 25 6.93 6.96 Ghala 33 25 18.43 16.93 Ibri 33 25 11.56 11.86 16.45 16.51 16.53 Izki 33 25 11.75 11.94 11.99 18.82 18.89Jahloot 33 25 16.27 15.03 15.20 18.63 14.86 khaburah 33 25 17.31 17.62 17.79 17.70 17.67 Liwa 33 25 16.93 16.89 16.61 16.61Mawalih-A 33 25 18.17 17.78 18.72 19.81 19.81 Mawalih-B 33 25 10.78 18.72 19.81 19.81


Page | 130

Mudarib 33 25 14.63 14.27 14.30 15.29 15.24

Substations

Voltage (kV)

Switchgear Fault

Rating (kA)

2009 2010 2011 2012 2013 Ik" (kA)

Ik" (kA)

Ik" (kA)

Ik" (kA)

Ik" (kA)

MIS 33 25 20.77 20.91 20.51 20.44 Multaqa 33 25 18.27 18.27 Muladah 33 25 20.46 20.69 20.82 20.25 20.17 Mobalah 33 25 21.76 21.45 20.92 17.68 17.58 Misfah 33 25 19.82 19.67 19.67 MSQ-A 33 25 23.73 21.17 21.51 22.04 21.93 MSQ-B 33 25 12.28 21.51 22.04 21.93 Mudaibi 33 25 10.80 10.50 10.52 15.32 15.32 Muttrah 33 25 18.03 18.04 18.02 Nakhal 33 25 19.17 17.61 17.52 Nizwa 33 25 18.54 18.49 18.92 19.06 19.21 Nizwa University 33 25 18.56 18.67 Qurum 33 25 19.67 19.68 18.99 Quraiyat 33 25 12.47 14.68 12.25 Rusail 33 25 25.85 25.06 23.95 24.68 24.69 Rustaq 33 25 11.58 11.41 11.46 16.38 16.63 Saham 33 25 18.44 18.68 18.69 18.68 Seeb 33 25 11.82 17.12 18.00 19.00 19.00 Seeb Temporary 33 25 6.80 Shinas 33 25 11.80 13.50 13.48 13.31 13.30 sipA 33 25 17.12 19.11 19.56 19.41 19.41 Sohar 33 25 19.47 19.91 19.94 19.80 19.80 Sohar temp 33 25 6.51 6.53 6.57 6.55 6.55 Sumail 33 25 12.39 12.27 12.12 17.95 18.56 Sur 33 25 11.86 10.44 10.44 15.40 15.21 Wadi Adai 33 25 22.08 20.15 20.42 20.67 20.76 Wadi Kabir 33 25 19.72 18.17 18.39 19.15 19.23 Wadi Sa'a 33 25 13.76 12.47 12.43 12.43


Page | 131

Yankit 33 25 13.43 11.36Yitti 33 25 11.74 11.84 13.82 11.64 Color Key:

Not in service

Table C.7: Maximum 1- Phase Short Circuit Fault Levels

Substations Voltage Switchgear

Fault 2009 2010 2011 2012 2013 (kV) Rating (kA) Ik" (kA) Ik" (kA) Ik" (kA) Ik" (kA) Ik" (kA)

Alwasit (Interconnected) 220 40 9.86 10.07 15.83 16.41 16.87 Airport Heights 220 40 16.65 19.35 18.90 16.98 Blue City 220 40 16.59 15.69 15.40 Barka PS 220 40 30.04 30.40 36.62 30.26 29.09 New Barka IPP 220 50 13.02 12.82 Filaj 220 40 23.87 27.05 31.78 27.49 26.40 Jahloot 220 40 9.50 7.69 MIS 220 40 11.79 13.84 14.20 13.85 13.72 Misfah 220 40 10.70 10.58 MSQ 220 40 14.63 13.80 15.25 15.20 14.39 sipA 220 40 15.35 25.82 32.32 29.60 29.59 sipB 220 40 32.22 29.57 29.56 sis 220 40 11.38 13.97 18.17 22.21 22.22 sps 220 40 15.58 26.48 33.38 30.48 30.47 New Sohar IPP 220 50 17.98 18.03


Page | 132

Ibri 220 40 6.56 6.60 6.87 Wadi Adai 220 40 10.55 10.91 sur 220 40 5.80 5.46

Ayjah 132 31.5 7.98 7.69 Rawdh 132 31.5 6.52 6.37 Amerat 132 31.5 16.41 12.57 Al Khoudh 132 31.5 15.01 Adam 132 31.5 6.73 6.71 6.83 6.86 6.96 Al falaj 132 31.5 23.12 18.22 18.92 19.74 19.97 Al hail 132 31.5 2.79 3.85 3.65 3.66 3.66 Al kamil 132 40 13.94 12.64 12.66 16.93 16.62 Al wasit 132 31.5 15.42 16.15 17.27 17.55 18.43 Airport Heights 132 31.5 15.52 20.97 21.10 15.99 Azaiba Coast 132 31.5 14.28 18.60 18.64 14.63 JBB Ali 132 40 6.16 5.89 5.94 6.70 6.66 Bahla 132 31.5 7.72 7.69 7.92 7.98 8.05 Barka 132 31.5 23.61 23.70 23.48 19.36 20.14 Boushar 132 31.5 28.79 16.73 18.20 18.67 15.15 Buraimi-A 132 40 7.57 7.64 9.43 9.85 9.86 Buraimi-B 132 31.5 12.19 12.25 Dank 132 40 5.66 6.16 5.17 5.18 5.19 Dreez 132 31.5 7.41 Filaj 132 31.5 25.50 26.65 28.27 22.52 22.58 Free Zone 132 31.5 16.49 16.49

Substations

Voltage (kV)

Switchgear Fault

Rating (kA)

2009 2010 2011 2012 2013

Ik" (kA) Ik" (kA) Ik" (kA) Ik" (kA) Ik" (kA)New Ghubrah IWPP 132 31.5 25.63 Ghubrah 132 26.2 39.80 15.39 Ghubrah-A 132 26.2 16.62 18.07 18.51 Ghubrah-B 132 31.5 23.39 25.42 26.93 Ghala 132 31.5 14.84 12.31


Page | 133

Ibri 132 31.5 6.69 6.79 10.60 10.67 11.17 Izki 132 31.5 12.57 12.44 12.63 14.73 14.86 Jahloot 132 40 10.27 9.42 10.00 16.09 9.87 khaburah 132 31.5 11.68 12.42 12.65 12.54 12.50 Liwa 132 31.5 12.04 11.99 11.61 11.61 Mawalih 132 31.5 15.10 15.26 18.15 21.43 21.89 Mudarib 132 40 8.88 8.54 8.60 9.63 9.58 MIS 132 31.5 17.20 20.77 21.30 20.32 20.13 Multaqa 132 31.5 14.47 14.46 Muladah 132 31.5 17.84 18.96 19.35 18.28 18.12 Manah 132 31.5 15.42 15.35 15.93 16.12 16.88 Mobalah 132 31.5 24.15 23.15 21.50 12.89 12.89 Misfah 132 31.5 18.09 17.19 17.21 MSQ 132 31.5 35.74 23.86 26.01 28.30 27.65 Mudaibi 132 40 8.30 8.11 8.19 9.89 9.87 Muttrah 132 31.5 13.25 13.78 13.71 Nahda 132 31.5 3.57 3.57 3.59 3.59 3.60 Nakhal 132 31.5 14.30 12.57 12.47 Nizwa 132 31.5 15.24 15.14 16.00 16.71 17.29 Nizwa University 132 31.5 15.15 15.37 Qurum 132 31.5 17.53 18.51 18.37 Quraiyat 132 31.5 7.00 9.16 6.88 Rusail 132 31.5 28.00 28.08 Rusail-A 132 31.5 29.99 27.28 21.74 Rusail-B 132 31.5 22.33 20.88 23.63 Rustaq 132 31.5 9.81 9.95 10.05 10.71 10.71 Saham 132 31.5 13.84 14.25 14.34 14.31 Seeb 132 31.5 11.05 12.73 14.02 15.81 15.93 Shinas 132 40 6.61 8.82 8.79 8.59 8.59 sipA 132 31.5 13.78 18.13 19.50 18.99 18.99 sipB 132 31.5 17.29 18.11 18.11 SIS 132 31.5 16.28 18.66 20.45 21.89 21.88


Page | 134

Sohar 132 31.5 17.26 18.30 18.41 19.37 19.36 Sumail 132 31.5 12.82 12.47 12.07 13.67 13.84 Sur 132 40 6.29 5.21 5.24 10.19 9.73 Wadi Adai 132 31.5 27.77 20.98 21.96 23.10 23.43

Substations VoltageSwitchgear

Fault 2009 2010 2011 2012 2013 (kV) Rating (kA) Ik" (kA) Ik" (kA) Ik" (kA) Ik" (kA) Ik" (kA)Wadi Jizzi 132 31.5 22.32 24.24 24.03 21.97 21.99 Wadi Kabir 132 31.5 16.61 13.92 14.30 16.25 16.40 Wadi Sa'a 132 31.5 8.91 7.30 7.28 7.29 Yankit 132 31.5 8.38 6.44 Yitti 132 31.5 6.31 6.41 8.91 6.75 Color Key:

Not in service


Page | 135

Figure C.1 OETC Transmission System 2009 Max. Load Flow Condition.

V o l t a g e L e v e ls

2 2 0 . k V1 3 2 . k V3 3 . k V1 9 . k V1 7 . k V1 5 . 7 5 k V1 5 . k V1 4 . k V1 1 .5 k V1 1 . k V0 . 4 1 5 k V

Wadi Al Kabir

Al Khabourah

SoharInterconnection SS

Bousher

Wadi Adai

OMIFCO

OCC

OMCO

Al Hail

Oman - UAE220kV Interconnection

Adam

Figure C.1 OETC Transmission System2009 Max. load Flow Condition

Seeb Main

BB Ali

Mudarb

Mhdhabi

Izki

Nizwa

PDO

Ibri

Dank

Al Wasit ( Mhadah)

Sohar Refinery

Sohar Ind Port-A

Sohar Grid (Old)

Rustaq

Muladha (Old)

MusannaInterconnection SS

Mobalah

AlMawalih

MSQ

Jahloot

Ghubrah P/SWadi Jizzi P/S

Sohar IWPPSohar Aluminum

AES Barka P/S

Manah P/S

Al Kamil P/S

Rusail P/S

AlFalaj

Sur

Shinas

Sumail

Bahla

Filaj

Barka Main

Al Buraimi

Sohar Refinery 132kV

134.091.0221.68

Ghoubrah 132 kV

126.040.9513.07

Rusail B132

129.960.9814.19

Wadi Al..

131.501.0013.40

Rusail A132

125.680.9513.15

alkamil 132..

126.210.964.61

Mawalla..

126.310.9612.89

0.41

5 bu

sbar

..0.41

0.99

69.6

1

0.415 busbar..0.421.001.02

Soha

r Tem

p..

32.7

40.

9939

.61

Al Hay..32.891.0030.31

Al Hayl..

115.930.882.86

Filaj 220..

214.560.9822.06

Wadi Al ..

123.220.9310.73

0.415 busbar..0.411.00

-112.79

Adam33 ..

32.851.00

-142.79

0.415 busbar..0.410.9965.38

0.415 busbar..0.411.0078.14

0.415 busbar..0.410.9966.56

Sohar ..

32.700.9936.56

0.415 busbar..0.421.00

-110.55

0.415 busbar..0.410.99

-113.19

Mulada..32.630.99

-143.19

0.415 busbar..0.411.00

-111.72

0.415 busbar..0.421.01

-110.88

Barka ..

33.281.01

-140.88

0.415 busbar..0.411.00

-109.20

Mobalah..

32.881.00

-139.20

0.415 busbar..0.411.00

-114.74

Seeb 3..

32.851.00

-144.74

0.415 busbar..0.411.00

-114.74

0.415 busbar..0.421.01

-113.55

0.415 busbar..0.410.99

-113.40

Wadi Ad..

32.710.99

-143.40

0.415 busbar..0.410.99

-116.11

Al Fa..

32.790.99

-146.11

0.415 busbar..0.411.0065.67

Wadi A..

32.931.00

-144.33

0.415 busbar.. 0.421.00

-113.25

MSQ 33k..

33.131.00

-143.25

0.415 busbar..0.431.04

-114.27

Bousher..32.901.00

-144.27

0.41

5 bu

sbar

..0.

410.

99-1

13.0

4

Jahl

oo..

32.7

20.

99-1

43.0

4

0.41

5 bu

sbar

..0.

410.

99-1

13.0

4

0.415 busbar..0.411.00

-122.29

0.415 busbar..0.421.00

-121.46

JBB Ali ..

33.141.00

-151.46

0.415 busbar..0.421.00

-120.55

Mudhairb..

33.031.00

-150.55

0.415 busbar..0.410.99

-120.40

Mudhaib..

32.810.99

-150.40

0.415 busbar..0.411.000.31 0.415 busbar..

0.411.000.31

0.415 busbar..0.411.0067.50

Al Was..

32.941.0037.50

Sumail ..

32.911.00

-144.69

0.415 busbar..0.411.00

-114.69

0.415 busbar..0.431.04

-116.74

Bahla ..

32.891.00

-146.74

0.415 busbar..0.441.05

-117.29

Izki 3..

33.101.00

-147.29

0.415 busbar..0.431.04

-116.76

Nizwa 3..

32.790.99

-146.76

0.415 busbar..0.411.00-0.57

Ibri ..

32.961.0029.43

Dank33..

33.021.0031.02

0.415 busbar..0.411.0067.50

0.415 busbar0.421.00

-116.04

Sur 132k..

120.970.921.34

Bahla 1..

124.760.955.86

Al Fal..123.850.9411.24

Rustaq..

32.921.00

-141.72

SIP-A 3..

32.881.0048.14

Bureim..

33.141.00

-146.04

Adam132..

132.021.008.66

Manah13..

132.571.009.07

Jahl

oot..

121.

950.

9210

.76

Seeb132k..

124.790.9512.40

17.8

51.

05-1

20.9

2

khabora..

33.001.00

-140.55

Sur 33..

32.911.00

-152.29

SIP-A132..

134.091.0221.68

Shinas3..32.830.9935.38

khabora..

127.080.9614.48

JBB Ali 1..

122.040.922.16

Sohar 1..

130.710.9913.78

Mawalla..

33.191.01

-143.55

Rusail..

32.901.00

-140.58

Al Wasit 220kV

212.000.969.99

Bureimi..

121.490.927.97

Dank132..

120.560.915.13

Al Wasi..126.390.9610.00

Nahda132k.. 136.631.049.72

Nizwa 1..

127.480.977.15

Izki 13..

124.370.946.64

Mudhaibi..

121.700.923.85

MSQ 132..

125.180.9512.74

15.5

51.

04-1

36.4

5

11.5

51.

05-1

37.1

1

11.0

01.

0076

.60

MSQ 220..

208.530.9517.74

MIS 220..

213.640.9719.44

SIP-A 22..227.351.0323.08

SPS 220..

227.421.0323.11

SIS 220..

219.191.0020.40

SIS132k..

134.011.0216.68

Shinas13..

122.100.938.87

Rustaq ..

121.830.9213.75

Ibri 13..120.040.913.71

Mudhairb..122.040.923.04

MIS132kV

125.420.9515.95

Filaj 132..

125.620.9516.50

Barka PS ..

217.170.9924.15

Muladah..

123.550.9414.76

Mobalah..124.930.9513.69

Barka 1..

124.750.9515.02

Ghubra..

32.060.97

-139.34

Wadi Ad..

124.220.9411.52

Bousher..124.830.9512.70

Sumail 1..

123.910.9410.05

alw220 (1)

212.280.969.99

Soh

ar R

efin

ery-

SIP

-A 1

32kV

0.00-0.310.06

Soh

ar R

efin

ery-

SIP

-A 1

32kV

-0.000.000.06

Sohar Refinery

0.00 MW0.00 Mvar

1.00

Ghubrah-Bous..

166.39121.2243.10

Ghubrah-Bous..

-165.58-119.3143.10

gbr S

T4 T

X(1)

3

gbr S

T4 T

X(1)

3

G~gbr_ST4(1)

36.3023.4966.52

gbr G

T10

-11

TX

3

gbr G

T10

-11

TX

3

G~gbr_GT10-11

50.8054.9079.57

Dsl Ghoubrah(2)

28.0014.34

Ax Ghoubrah(2)

7.003.59

Wad

i Ada

i-Wad

i Kab

air 1

32kV

126.4842.6154.52

Wad

i Ada

i-Wad

i Kab

air 1

32kV

-126.03-41.3254.52

Wad

i Al J

azzi

-Shi

n..

79.8929.07105.35

Wad

i Al J

azzi

-Shi

n..

-76.15-22.97105.35

Khahorah..

-78.07-80.6522.37

Khahorah..

79.1778.4222.37

Rus

ail-B

oush

e..

23.848.135.46

Rus

ail-B

oush

e..

-23.75-10.205.46

rsl G

T8

TX

3

rsl G

T8

TX

3

rsl G

T7

TX

3

rsl G

T7

TX

3

G~rsl_GT8

88.0061.1991.61

G~rsl_GT7

88.9057.4770.57

rsl G

T4-5

TX

3

rsl G

T4-5

TX

3

G~rsl_GT4-5

155.60126.9094.93

rsl G

T3

TX

3

rsl G

T3

TX

3

G~rsl_GT3

74.7071.0875.27

Rusail-..

-272.73-164.2366.45

Rusail-..

276.73174.5666.45

Rus

ail-.

.

-127.82-89.4131.80

Rus

ail-.

.

129.3593.5531.80

Fila

j-MS

..

366.07110.2726.10

Fila

j-MS

..

-363.62-99.8926.10

Mudharib-M..

-23.515.025.48

Mudharib-M..

23.57-11.765.48

MIS

-SIS

..

-51.28-83.146.60M

IS-S

IS ..

51.4847.406.60

Ghu

brah

-..

-185.07-161.8724.87

Ghu

brah

-..

185.39162.0324.87

Ax Rusail

7.003.59

Alkamil- Mud..

-67.80-62.7719.17

Alkamil- Mud..

68.4060.4619.17

gbr G

T12

-13

TX

3

gbr G

T12

-13

TX

3

gbr S

T5-6

TX

3

gbr S

T5-6

TX

3

gbr G

T4-

9 TX

3

gbr G

T4-

9 TX

3

rsl G

T6

TX

3

rsl G

T6

TX

3

rsl G

T1-2

TX

3

rsl G

T1-2

TX

3

G~rsl_GT6

77.8063.4594.93

G~gbr_GT12-13

178.00143.4095.64

G~gbr_GT4-9

93.00108.0079.18

G~gbr_ST5-6

57.4048.9092.52

MSQ-Wadi ..

289.6859.8559.88

MSQ-Wadi ..

-288.68-54.2759.88

G~rsl_GT1-2

149.40164.4081.07

0.16 MVA earthing TX

0.00

-0.0

00.

00

3

0.16 MVA earthing TX

-0.0

00.

000.

00

3

Dsl Barka ph2

31.2015.98

OMIFCO

0.00 MW0.00 Mvar

1.00

SVS

Static Va..

OCC

0.00 MW0.00 Mvar

1.00

OMCO

0.00 MW0.00 Mvar

1.00

soha

r tem

p

27.0

013

.83

soh Temp 60MVA x1

27.0

616

.67

53.4

9

11soh Temp 60MVA x1

-27.

00-1

3.83

53.4

9

11

Line

(4)

Line

(4)

-14.4616.839.03

Line

(2)

41.55-1.6016.11

Line

(2)

Line(3)

-27.

06-1

6.67

12.3

1Line(3)

27.0

616

.67

12.3

1

SIS

-SPS

2..

SIS

-SPS

2..

-368.02-237.7628.85

alh cap(1)

0.00-4.97

1

UAE Network

0.00 MW0.00 Mvar

1.00

Rus

taq

..

82.3347.9581.93

3

Rus

taq

..

-82.10-37.4181.93

3

Mud

hairi

b 1.

.

91.3257.7546.75

7

Mud

hairi

b 1.

.

-91.20-49.2246.75

7

Dan

k 15

MV

..

19.275.9373.59

4

Dan

k 15

MV

..

-19.10-4.3273.59

4

Nizwa-..

-41.66-78.7018.13

Nizwa-..

42.0176.8318.13

alw

asit.

.

84.0113.2550.46

alw

asit.

.

-81.21-12.6150.46

Filaj-MI..

204.98-3.8013.81

Filaj-MI..

-204.23-9.2213.81

Sohar Al

0.00 MW0.00 Mvar

1.00

adm

0.3

15 M

VA

0.000.000.00

3

adm

0.3

15 M

VA

-0.000.000.00

3

G~brk ST1-2 Ph-2

264.02102.0569.76

shns

0.2

MV

A

0.000.000.00

3

shns

0.2

MV

A

-0.000.000.00

3

sipA

0.3

15 M

VA

0.000.000.00

3si

pA 0

.315

MV

A

-0.00-0.000.00

3so

h 0.

315

MVA

0.00-0.000.00

3

soh

0.31

5 M

VA

-0.000.000.00

3

khb

0.31

5 M

VA

0.000.000.00

3

khb

0.31

5 M

VA

-0.000.000.00

3

mld

0.2

MVA

0.00-0.000.00

3

mld

0.2

MVA

-0.000.000.00

3

rtq 0

.2 M

VA

0.000.000.00

3

rtq 0

.2 M

VA

-0.00-0.000.00

3

brk

0.2

MV

A

0.00-0.000.00

3

brk

0.2

MV

A

-0.00-0.000.00

3

mob

0.3

15 M

VA

0.00-0.000.00

3

mob

0.3

15 M

VA

-0.000.000.00

3

seb

0.15

MV

A

0.00-0.000.00

3

seb

0.15

MV

A

-0.000.000.00

3

seb

0.12

7 M

VA

0.000.000.00

3

seb

0.12

7 M

VA

-0.00-0.000.00

3

maw

0.3

15 M

VA

0.000.000.00

3

maw

0.3

15 M

VA

-0.00-0.000.00

3

wda

0.3

15 M

VA

0.00-0.000.00

3

wda

0.3

15 M

VA

-0.000.000.00

3

alf 0

.25

MV

A

0.000.000.00

3

alf 0

.25

MV

A

-0.00-0.000.00

3

wdk

0.2

MV

A

0.00-0.000.00

3

wdk

0.2

MV

A

-0.000.000.00

3

msq

0.2

MV

A

-0.00-0.000.00

3

msq

0.2

MV

A

0.000.000.00

3

bsr 0

.315

MV

A

0.00-0.000.00

3

bsr 0

.315

MV

A

-0.000.000.00

3

jah 0.315 MVA(2)

0.00

0.00

0.00

3jah 0.315 MVA(2)

-0.0

0-0

.00

0.00

3

jah 0.315 MVA

0.00

-0.0

00.

00

3jah 0.315 MVA

-0.0

00.

000.

00

3

sur 0

.315

MV

A

0.00-0.000.00

3

sur 0

.315

MV

A

-0.000.000.00

3

bbal

i 0.3

15 M

VA

0.000.000.00

3

bbal

i 0.3

15 M

VA

-0.00-0.000.00

3

mdr

b 0.

315

MV

A

0.000.000.00

3

mdr

b 0.

315

MV

A

-0.000.000.00

3

mud

b0.3

15 M

VA

0.000.000.00

3

mud

b0.3

15 M

VA

-0.000.000.00

3

alh

0.2

MV

A(1

)

0.00-0.000.00

3

alh

0.2

MV

A(1

)

-0.000.000.00

3

alw

0.16

MV

A(1

)

0.00-0.000.00

3

alw

0.16

MV

A(1

)

-0.000.000.00

3

sum

l 0.3

15 M

VA

0.000.000.00

3

sum

l 0.3

15 M

VA

-0.000.000.00

3

bhl 0

.315

MV

A

0.000.000.00

3

bhl 0

.315

MV

A

-0.00-0.000.00

3

izk

0.31

5 M

VA

(1) 0.00

-0.000.00

3

izk

0.31

5 M

VA

(1)

-0.000.000.00

3

nzw

0.3

15 M

VA

0.00-0.000.00

3

nzw

0.3

15 M

VA

-0.000.000.00

3

dank

0.2

MV

A

0.00-0.000.00

3

dank

0.2

MV

A

-0.00-0.000.00

3

alh

0.2

MV

A

0.000.000.00

3

alh

0.2

MV

A

-0.00-0.000.00

3

ibr

0.2

MV

A

0.000.000.00

3

ibr

0.2

MV

A

-0.000.000.00

3

alw

0.16

MV

A

0.00-0.000.00

3

alw

0.16

MV

A

-0.000.000.00

3

burim

i 0.3

15 M

VA 0.00

-0.000.00

3

burim

i 0.3

15 M

VA

-0.000.000.00

3

Zoom Load

Sur 1

2..

91.3149.6245.36

7

Sur 1

2..

-91.20-41.5545.36

7

sur33_load

91.2041.55

JBB

Ali

..

92.4153.0246.09

7

JBB

Ali

..

-92.30-44.7046.09

7

Alk

amil-

JB

..

93.2952.0122.11

Alk

amil-

JB

..

-92.41-53.0222.11

mdrb33_load

91.2049.22

bhl33_load

65.0035.08

Nizw

a 1.

.

98.5760.5947.91

8

Nizw

a 1.

.

-98.30-50.3647.91

8

adm33_load

20.0010.25

nzw33_load

98.3050.36

Adam

..

20.0711.1828.75

13

Adam

..

-20.00-10.2528.75

13

ibr cap2(1)

-0.00-4.99

1

MS

Q 1

25M

..

-163.00-87.9883.87

3

MS

Q 1

25M

..

163.48113.1083.87

3

Bou

sher

..

189.33129.5197.16

4

Bou

sher

..

-188.60-96.6297.16

4

Jahloo..

94.3

251

.56

46.5

4

8Jahloo..

-94.

20-4

2.92

46.5

4

8

Wad

i Al..

126.0341.3256.82

6

Wad

i Al..

-125.70-28.0256.82

6

wdk cap2(1)

-0.00-19.91

4

Al F

al..

170.3573.5879.13

4

Al F

al..

-169.90-47.5679.13

4

alf cap2(1)

4

alf33_load

169.9087.04

Wad

i Ad.

.

-119.20-15.0052.05

8

Wad

i Ad.

.

119.5026.8452.05

8

wda33_load

119.2054.31

wda cap1(1)

-0.00-19.65

4

Maw

alla

h..

-161.50-63.8376.99

5

Maw

alla

h..

162.0387.5476.99

5

Maw

alla

h..

110.7076.6970.15

Maw

alla

h..

-110.02-75.4770.15

seb33_load

109.6056.15

rtq33_load

82.1037.41

Mul

adah

..

205.4087.5295.44

4

Mul

adah

..

-204.80-54.2195.44

4

mld33_load

204.8093.31

mld cap1(1)

0.00-19.55

4

Mob

alla

h..

72.4943.1435.64

7

Mob

alla

h..

-72.30-37.0435.64

7

mob33_load

72.3037.04

Bar

ka ..

157.4068.1372.61

4

Bar

ka ..

-157.00-48.2972.61

4

brk cap2(1)

0.00-20.34

4

brk33_load

157.0088.98

khb cap1(1)

-0.00-20.00

4

khab

orah

1..

126.3448.3956.20

8

khab

orah

1..

-126.00-34.7656.20

8

MIS

-Kha

..

48.53-37.4112.37

MIS

-Kha

..

-48.2732.2612.37

SIP

-A 1

25M

VA

x2

87.0152.8640.09

9

SIP

-A 1

25M

VA

x2

-86.80-44.4740.09

9

sip33A_load

86.8044.47

Soh

ar 1

2..

178.6089.6580.72

9

Soh

ar 1

2..

-178.00-61.6180.72

9

soh33_load

178.00100.88

soh cap2(1)

0.00-19.63

4

Al W

asit

315.

.

-0.0016.152.66

15

Al W

asit

315.

.

0.19-13.172.66

15

dank-Al hayl 132kV

31.4814.0743.41

dank-Al hayl 132kV

-30.82-14.3443.41

alh33_load

30.7022.23

alwasit-..

98.9243.3969.82

alwasit-..

-96.56-41.0269.82

alw33_load

22.1011.93

Nahada-Niz..

-38.39-24.4857.77

Nahada-Niz..

40.0024.7957.77

Manah-Ad..

20.104.814.41

Manah-Ad..

-20.07-11.184.41

Man

ah-N

i..

-229.41-193.2559.58

Man

ah-N

i..

231.77206.0959.58

Bah

la 1

25M

VA

x2

65.1840.3532.43

7

Bah

la 1

25M

VA

x2

-65.00-35.0832.43

7

Niz

wa-

Bah

..

65.6939.7831.12

Niz

wa-

Bah

..

-65.18-40.3531.12

msq33_load

163.0087.98

Ax Manah

6.003.07

Alkamil-sur..

-91.31-49.6221.75

Alkamil-sur..

92.4248.0521.75

brk cap2

0.00-20.34

4

alh cap

0.00-4.97

1

dnk cap2

1

khb cap1

-0.00-20.00

4

soh cap2

0.00-19.63

4

dnk cap1

1

wdk cap2

-0.00-19.91

4

wda cap1

-0.00-19.65

4

alf cap2

4

mld cap1

0.00-19.55

4

sps

GT1

-3 T

X

11

sps

GT1

-3 T

X

11

sps

ST1

TX

11

sps

ST1

TX

11

brk

ST1

-3 P

2 TX

11

brk

ST1

-3 P

2 TX

11

brk

ST1

TX

11

brk

ST1

TX

11

brk

GT1

-3 P

2 TX

12

brk

GT1

-3 P

2 TX

12

brk

GT1

-2 T

X

12

brk

GT1

-2 T

X

12

wdj

GT

6-7

TX

9

wdj

GT

6-7

TX

9

wdj

GT

5 TX

9

wdj

GT

5 TX

9

wdj

GT

4 TX

9

wdj

GT

4 TX

9

mnh

GT

1-3

TX

3

mnh

GT

1-3

TX

3

mnh

GT

4-5

TX

12

mnh

GT

4-5

TX

12

G~brk GT1-3 Ph-2

363.30135.0473.83

G~sps ST1

203.90130.1087.95

G~brk GT1-2

221.4091.8075.37

khb33_loadA

126.0074.76

dnk33_load

19.1014.32

bbali33_load

92.3044.70

wdk33_load

125.7067.85

MS

Q 5

00M

VA

x 2

363.6299.8939.84

13

MS

Q 5

00M

VA

x 2

-363.11-62.0239.84

13

Fila

j 500

MV

A x

2

408.53115.4743.59

15

Fila

j 500

MV

A x

2

-407.97-69.1443.59

15

MIS

500

MV

A x2

255.5092.3628.02

15

MIS

500

MV

A x2

-255.11-70.5928.02

15

SIS-SPS1 220kV

370.17220.2728.30

SIS-SPS1 220kV

SIP

-A 5

00M

VA

x 2

117.3576.2713.56

15

SIP

-A 5

00M

VA

x 2

-117.01-67.0813.56

15

G~sps GT1-3

371.70259.4684.41

SIS

500

MV

A x

2

316.54190.3737.13

10

SIS

500

MV

A x

2

-316.03-158.1737.13

10

Wad

i Ada

i..

-170.35-73.5837.94

Wad

i Ada

i..

170.5174.2237.94

Soh

ar-W

a..

14.61-18.209.04

Soh

ar-W

a..

-14.5816.769.04

Wadi Al ..

209.8667.6368.07

Wadi Al ..

-205.33-57.0268.07

G~brk ST1

203.9082.2378.52

See

b 63

M..

110.0275.47112.01

3

See

b 63

M..

-109.60-56.15112.01

3

bsr33_loadA

188.6096.62

rsl33_load

114.8071.15

Rus

ail 7

5MV

..

115.1983.2049.75

6

Rus

ail 7

5MV

..

-114.80-71.1549.75

6

jah3

3_lo

ad

94.2

042

.92

alka

mil

GT

1-3

TX

-260.11-163.6099.75

11

alka

mil

GT

1-3

TX

261.60218.2599.75

11

Muladah-..

82.6547.0819.80

Muladah-..

-82.33-47.9519.80

Ibri-Dank 132kV

30.46-7.4019.25

Ibri-Dank 132kV

-30.203.7019.25

Al H

ayl 4

0M..

30.8214.3448.38

2

Al H

ayl 4

0M..

-30.70-12.2948.38

2

bur33_load

96.4072.30

Bur

eim

i 125

..

96.5641.0246.45

3

Bur

eim

i 125

..

-96.40-31.9746.45

3

MSQ-Jahloot ..

95.0250.9322.32

MSQ-Jahloot ..

-94.

32-5

1.56

22.3

2

Al W

asit

30..

22.2113.5445.28

6

Al W

asit

30..

-22.10-11.9345.28

6

PDO Network

40.00 ..24.79 ..0.85

G~mnh GT1-3

80.7954.3083.74

Nizwa-Ib..

61.5340.5416.41

Nizwa-Ib..

-60.57-48.8116.41

Ax Alkamil

6.003.07

Izki

-Mud

h..

87.1322.2818.72

Izki

-Mud

h..

-86.40-25.1218.72

izk33_load

57.0029.20

Izki

40M

..

57.2134.7388.90

5

Izki

40M

..

-57.00-29.2088.90

5

mudb33_load

62.7030.37

Mud

haib

i 6..

62.8436.8862.72

4

Mud

haib

i 6..

-62.70-30.3762.72

4

ibr cap2

-0.00-4.99

1

bur cap2

0.00-20.17

4

bur cap1

0.00-20.17

4

shns cap2

0.00-19.80

4

shns cap1

0.00-19.80

4

wdj

GT

12-1

3 TX

9

wdj

GT

12-1

3 TX

9

wdj

GT

11 T

X

9

wdj

GT

11 T

X

9

wdj

GT9

-10

TX

9

wdj

GT9

-10

TX

9

wdj

GT

8 TX

9

wdj

GT

8 TX

9

wdj

GT

3 TX

9

wdj

GT

3 TX

9

gbr G

T1-

3 TX

3

gbr G

T1-

3 TX

3

gbr S

T1-3

TX

3

gbr S

T1-3

TX

3

G~wdj GT8

24.6022.5088.90

G~wdj GT5

21.805.7564.86G~

wdj GT425.8020.8695.44G~

wdj GT316.3018.0676.63

G~wdj GT12-13

54.903.5659.48

G~wdj GT11

26.201.7570.02

G~wdj GT9-10

50.2046.5088.29

G~mnh GT4-5

178.00198.0080.68

G~gbr_GT1-3

49.8015.0757.81

ibr33_load

90.5046.36

Bar

ka P

S-F

ilaj 2

20kV

-979.58-221.9467.57

Bar

ka P

S-F

ilaj 2

20kV

982.69256.6867.57

Ibri

63M

VA

x2

90.7645.1188.74

3

Ibri

63M

VA

x2

-90.50-36.3988.74

3

SPS

-SIP

-A 2

20kV

167.3672.3212.39

SPS

-SIP

-A 2

20kV

-167.35-100.4912.39

Dsl Sohar

31.0015.88

sip220_load

50.0024.22

Ax Sohar

6.003.07

SIS

-Soh

a..

236.8679.7547.45

SIS

-Soh

a..

-234.76-69.8547.45

shns33_load

75.9056.92

Shi

nas

63M

VA

..

76.1522.9768.24

6

Shi

nas

63M

VA

..

-75.90-17.3368.24

6

G~wdj GT6-7

49.2043.3290.79

sip132_load

30.0014.53

Ax_wdj

7.003.59

Muladah-..

206.58107.9947.20

Muladah-..

-205.69-103.6147.20

Fila

j-Mul

a..

-82.36-30.9918.04

Fila

j-Mul

a..

82.8228.6918.04

Filaj-Bark..

325.1440.4666.07

Filaj-Bark..

-323.83-32.9466.07

Dsl Barka ph 1

25.0012.81

Ax Barka ph-2

6.003.07

Ax Barka phase 1

6.003.07

Rusail-M..

-93.1480.5124.97

Rusail-M..

93.35-80.4024.97

Mobalah-..

-165.8437.2634.53

Mobalah-..

166.44-35.1934.53

maw33_load

161.5063.83

G~gbr_ST3

7.703.7063.77

gbr33_load

84.9043.50

Ghu

brah

4..

27.6733.9754.63

5

Ghu

brah

4..

-27.59-30.7854.63

5

Rus

ail-S

umai

..

-172.17-15.9135.34

Rus

ail-S

umai

..

173.6321.1635.34

suml33_load

68.4031.16

Sum

ail 6

3M..

68.5638.8666.63

5

Sum

ail 6

3M..

-68.40-31.1666.63

5

Al wasit-UAE 220 kV

0.00-16.151.10

Al wasit-UAE 220 kV

-0.000.001.10

G~alk GT1-3

261.60218.2593.66

Sum

ail-I

z..

103.61-22.9521.69

Sum

ail-I

z..

-102.6721.6921.69

DIg

SILE

NT


Page | 136




OETC Planning Dpt.

PowerFactory 14.0.508

2010 Peak Load in OETC Network

Summer Peak Load Studied areas: Majan, Mazoon and Muscat

(Master Model)

Project: 2010 Graphic: Expanded Grid Date: 8/1/2009 Annex: OETC

Ghubrah P/S

AlMawalih

Seeb Main

Sumail

Yitti

AlFalaj

Wadi Al Kabir

Bousher

Wadi Adai

Wadi Jizzi P/S

Azaiba Coast

OMIFCO

OCC

OMCO Figure C.2 OETC Transmission System2010 Max. load Flow Condition

Al Hail

BB Ali

Mudarb

Mhdhabi

Izki

Nizwa

PDO

Ibri

Wadi Sa'a

Dank

Al Wasit ( Mhadah)

Liwa

Sohar Refinery

Sohar Ind Port-A

Sohar Grid (Old)

Al Khabourah

Saham

Rustaq

Muladha (Old)


Mobalah

Air Port High

MSQ

Jahloot



AES Barka P/S

Manah P/S

Al Kamil P/S

Rusail P/S

Sur

Shinas

Bahla

Filaj

Barka Main

Adam

Al Buraimi


msq Tem 33

33.061.00

-142.72

maw Tem33

32.981.00

-142.28

0.415 busbar..

0.421.00

-111.27

ghb33 kV

32.770.99

-142.41

Seeb Temp 33 kV

32.760.99

-143.12

msq3332.720.99

-142.83

wdk33

32.690.99

-146.24

bsr33B32.981.00

-142.82

0.415 busbarB0.431.05

-112.82

wda132

128.290.9710.75

Rusail B 132 kV133.171.0113.90

Ghoubrah A 132 kV127.150.9611.49

Ghoubrah B 132 kV

129.600.9811.81

ytt1

3212

5.87

0.95

8.34

0.415 busbar.. 0.410.99

-112.83

wdk132

126.940.969.87

mob3332.830.99

-139.12

0.415 busbar..0.410.99

-110.37

seb3332.700.99

-140.37

0.415 busbar..

0.410.99

-110.37

0.415 busbar..0.410.9963.76

bsr33A

32.901.00

-142.62

0.415 busbar..0.431.04

-112.62

0.41

5 bu

sbar

..0.

411.

00-1

15.1

7

jah3

332

.91

1.00

-145

.17

0.41

5 bu

sbar

..0.

411.

00-1

15.1

7

0.41

5 bu

sbar

..0.

410.

99-1

13.1

8

ytt3

3

32.7

60.

99-1

43.1

8

jah1

32

126.

920.

968.

99

maw33

33.011.00

-141.27

Rusail A 132 kV

127.550.9713.16

seb132

129.890.9812.27

gbr33

32.680.99

-139.04

bsr132

126.870.9611.49

suml132

124.280.949.83

maw132

130.590.9912.63

0.415 busbar..0.410.9974.90

azb11

10.920.99

-14.03

0.415 busbar..0.410.9915.97

0.41

5 bu

sbar

..

0.41

0.99

78.8

3

soh

tem

p 33

(1)

32.8

10.

9948

.83

wdj132

135.121.0222.67

alh132

115.200.878.81

wds33

32.710.9944.90

azb 132

129.860.9819.49

0.415 busbar..0.421.00

-112.74

adm33

33.061.00

-142.74

0.415 busbar..0.421.0178.99

0.415 busbar..0.421.00

-101.88

liwa33

33.071.00

-131.88

0.415 busbar..0.421.0089.94

0.415 busbar..0.411.0078.00

soh33

32.961.0048.00

0.415 busbar..0.411.00

-100.50

0.415 busbar..0.411.00

-102.37

0.415 busbar..0.411.0076.77

mis33

32.941.0046.77

0.415 busbar..0.410.99

-106.74

mld3332.760.99

-136.74

0.415 busbar..0.410.99

-108.55

0.415 busbar..0.421.01

-110.19

brk33

33.221.01

-140.19

0.415 busbar..0.410.99

-109.12

0.415 busbar..0.421.00

-114.15

wda33A

33.011.00

-144.15

0.415 busbar..0.421.00

-115.89

alf33

33.051.00

-145.89

0.415 busbar..0.411.00

-102.47

arph33

32.961.00

-132.47

0.415 busbar..0.411.00

-127.46

0.415 busbar..0.411.00

-126.29

bbali33

32.961.00

-156.29

0.415 busbar..0.410.99

-124.39

mdrb33

32.750.99

-154.39

0.415 busbar..0.410.99

-123.21

mudb33

32.810.99

-153.21

0.415 busbar..0.410.996.11

alh3332.610.9936.11

0.415 busbar..0.411.0077.04

alw33

32.961.0047.04

suml33

32.770.99

-145.59

0.415 busbar..0.410.99

-115.59

0.415 busbar..0.431.03

-117.19

bhl33

32.500.98

-147.19

0.415 busbar..0.431.04

-118.30

izk33

32.740.99

-148.30

0.415 busbar..0.431.04

-117.05

nzw33

32.901.00

-147.05

0.415 busbar..0.410.996.87

0.415 busbar..0.410.996.11

0.415 busbar..0.411.002.89

ibr33

32.951.0032.89

dnk33

32.800.9936.87

0.415 busbar..0.411.0077.04

0.415 busbar0.411.00

-106.96

sur132A

122.860.93-3.21

bhl132

122.340.935.84

alf132128.010.9710.52

rtq 33

32.730.99

-138.55

sah33

32.861.00

-130.50

sip33A

33.151.0059.94

bur33

32.931.00

-136.96

adm132

130.130.998.88

mnh132

130.800.999.35

msq132

129.390.9811.80

17.0

01.

00-1

08.8

3

f ilaj220

221.391.0123.50

khb33A

32.991.00

-132.37

sur33

32.981.00

-157.46

sipA132

137.481.0433.47

shns3333.231.0148.99

liwa 132133.321.0121.09

khb132

131.491.0020.80

bbali132

120.510.91-2.13

soh132

135.651.0323.07

arph132130.050.9919.53

alw220 (Interconnected)

225.831.0322.24

bur132

125.370.9517.66

wds132

125.390.9515.74

dnk132

120.220.9111.18

alw132131.290.9919.74

nahda132 136.841.0410.64

nzw132

125.550.957.36

izk132

122.770.936.12

mudb132

119.550.911.75

alkamil132

125.460.950.71

sah132

134.451.0222.81

11.0

01.

0076

.65

msq220

210.910.9617.86

arph220215.770.9820.57

mis220

218.830.9923.65

sipA220232.231.0634.54

sps220

232.291.0634.56

sis220

222.411.0129.55

sis132

138.671.0525.23

shns132

133.461.0120.73

rtq132

125.070.9517.54

ibr132

118.020.897.17

mdrb132120.220.91-0.26

mis132A

128.590.9719.94

filaj132

128.840.9818.06

brkps220

223.441.0224.47

mld132

127.260.9618.56

mob132127.410.9714.13

brk132

127.590.9716.16

rsl3332.540.99

-141.48

alw220 (1)

228.931.0423.21

msq Tem33_load

60.0030.74

msq

Tem

125

-60.00-30.7457.97

6

msq

Tem

125

60.1537.7357.97

6

maw Tem33_load

60.0023.71

maw

Tem

125

-60.00-23.7154.60

9

maw

Tem

125

60.1730.6254.60

9

gbr Tem33_load

30.0015.37

Seeb

Tem

p 63

MV

A

-40.00-20.4977.13

8

Seeb

Tem

p 63

MV

A

40.1825.8277.13

8

seb33 Tem_load

40.0020.49

MSQ CB2

0.00-19.67

4

MSQ CB1

0.00-19.67

4

Mawallah cap2

0.00-20.01

4

Mawallah cap1

0.00-20.01

4

Moballah cap 2

-0.00-19.79

4

Moballah cap 1

-0.00-19.79

4

Gho

ubra

h T

em 4

0 M

VA -30.00

-15.3790.07

9

Gho

ubra

h T

em 4

0 M

VA

30.1118.4790.07

9

Bousher CB 2

0.00-19.98

4

Bousher CB 1

0.00-19.98

4

jahl

oot C

B 2

0.00

-19.

89

4

jahl

oot C

B 1

0.00

-19.

89

4

bsr 0

.315

MV

AB 0.00

0.000.00

3

bsr 0

.315

MV

AB

-0.00-0.000.00

3

bsr33_loadB

110.0056.35

bsr1

25B

110.2726.3047.24

10

bsr1

25B

-110.00-16.3947.24

10

Wad

i Ada

i-Wad

i Kab

ir

152.7064.2365.52

Wad

i Ada

i-Wad

i Kab

ir

-152.05-62.0865.52

rsl-m

aw

259.90105.3655.57

rsl-m

aw

-257.10-98.3955.57

rsl G

T4-5

TX

3

rsl G

T4-5

TX

3

G~rsl_GT4-5

159.00103.4689.69

rsl G

T3

TX

3

rsl G

T3

TX

3

G~rsl_GT3

76.5045.0764.81

rsl G

T8 T

X

3

rsl G

T8 T

X

3rsl G

T7

TX

3

rsl G

T7

TX

3

G~rsl_GT8

90.0039.2683.92

G~rsl_GT7

90.9033.9364.68

rusa

il-W

adi A

dai

-153.86-71.1333.46

rusa

il-W

adi A

dai

155.5876.0833.46

Ghb-Bousher

-144.56-105.6035.73

Ghb-Bousher

144.8899.2035.73 gb

r ST

4 TX

3

gbr S

T4

TX

3

G~gbr_ST4

37.2019.2264.42

gbr G

T12

3

gbr G

T12

3

G~gbr_GT12

91.0571.7096.98

Dsl Ghoubrah

28.0014.34

Ax Ghoubrah

7.003.59

gbr G

T10

-11

TX

3

gbr G

T10

-11

TX

3

G~gbr_GT10-11

52.0044.6572.92

bsr33_loadA

108.0055.33

msq

0.2

MV

A(1

) 0.000.000.00

3

msq

0.2

MV

A(1

)

-0.00-0.000.00

3

msq33_load

116.9063.10

seb

0.15

MV

A

0.00-0.000.00

3

seb

0.15

MV

A

-0.000.000.00

3

seb

0.12

7 M

VA

0.00-0.000.00

3

seb

0.12

7 M

VA

-0.00-0.000.00

3

maw

0.3

15 M

VA

0.000.000.00

3

maw

0.3

15 M

VA

-0.000.000.00

3

wdk

0.2M

VA

0.000.000.00

3

wdk

0.2M

VA

-0.00-0.000.00

3

bsr 0

.315

MV

A(2

) 0.00-0.000.00

3

bsr 0

.315

MV

A(2

)

-0.000.000.00

3

jah 0.315 MVA(2)

0.00

-0.0

00.

00

3jah 0.315 MVA(2)

-0.0

00.

000.

00

3

jah 0.315 MVA

0.00

0.00

0.00

3jah 0.315 MVA

-0.0

0-0

.00

0.00

3

jah125x2

101.

3114

.52

42.5

8

13

jah125x2

-101

.20

-6.3

242

.58

13

yitt 0.315 MVA

0.00

-0.0

00.

00

3yitt 0.315 MVA

-0.0

0-0

.00

0.00

3

yitt125x2

35.1

220

.39

17.0

6

10

yitt125x2

-35.

00-1

7.93

17.0

6

10

bsr1

25A

108.3166.9953.07

8

bsr1

25A

-108.00-55.3353.07

8

maw

125x

2

-91.104.0236.95

12

maw

125x

2

91.323.4536.95

12

gbr G

T13

TX

3

gbr G

T13

TX

3

gbr G

T4-

9 TX

3

G~gbr_GT13

91.0571.7096.98

G~gbr_ST5-6

58.7034.0783.28

MS

Q-A

rph

-477.34-175.5634.81

MS

Q-A

rph

479.50192.3634.81

gbr-

msq

-108.44-70.2412.64

gbr-

msq

108.6039.8012.64

ytt3

3_lo

ad

35.0

017

.93

jah3

3_lo

ad

101.

2046

.11

rsl-b

sr

74.79-12.6115.68

rsl-b

sr

-74.0212.3115.68

jah-ytt x2

35.2

115

.86

8.17

jah-ytt x2

-35.

12-2

0.39

8.17

Ax Rusail

7.003.59

gbr S

T5-6

TX

3

gbr S

T5-6

TX

3

rsl G

T6

TX

3

rsl G

T6

TX

3

G~rsl_GT6

79.5063.4596.19

G~gbr_GT4-9

mqb-wda

270.1780.7055.24

mqb-wda

-269.31-76.1855.24

seb33_load

65.1033.35

maw

-seb

105.6164.3224.09

maw

-seb

-105.45-64.3824.09

seb

125x

2

65.2838.5730.82

12

seb

125x

2

-65.10-33.3530.82

12

maw33_load

91.1036.01

gbr 4

2 x

2

10.5931.1439.88

6

gbr 4

2 x

2

-10.54-29.2339.88

6

rsl-s

umi x

2

-194.05-49.5840.81

rsl-s

umi x

2

195.9857.9240.81

Shunt/Filter(1)

0.00-19.98

4

Shunt/Filter

0.00-19.98

4

G~wdj GT11

26.80-10.9677.22

Garamco load (132 liwa)

20.009.69

Dsl Barka phase 2

31.2015.98

Azi

ba 0

.5 M

VA

0.000.000.00

3

Azi

ba 0

.5 M

VA

-0.00-0.000.00

3

OMIFCO

0.00 MW0.00 Mvar

1.00

SVS

Static Va..

OCC

0.00 MW0.00 Mvar

1.00

OMCO

14.40 ..8.92 Mvar

0.85

soh Temp 0.16 MVA0.

000.

000.

00

3soh Temp 0.16 MVA

-0.0

00.

000.

00

3

soh

Tem

load

27.4

014

.04

soh Temp 60MVA

27.4

616

.95

52.3

5

14soh Temp 60MVA

-27.

40-1

4.04

52.3

5

14

Line

(5)

Line

(5)

-19.62-8.267.98

Line

(3)

47.1123.5719.67

Line

(3)

Line(4)

-27.

46-1

6.95

12.0

5Line(4)

27.4

616

.89

12.0

5

msq

125x

2

117.1635.1149.92

8

msq

125x

2

-116.90-23.7649.92

8

Sohar Refinery

25.30 ..15.68 ..0.85

sis-

sps

x2(1

)si

s-sp

s x2

(1)

-690.00-248.7947.60

azb5

0x3

30.1418.5823.99

10

azb5

0x3

-30.00-15.3723.99

10

arph

125x

2

50.1529.1923.55

11

arph

125x

2

-50.00-25.6223.55

11

wdk1

25x2

152.0562.0868.30

8

wdk1

25x2

-151.60-42.5668.30

8

alh cap(1)

0.00-4.88

1

filaj-mis

-7.4543.674.43

filaj-mis

7.50-66.704.43

izk-nzw

-80.78-62.1321.02

izk-nzw

81.2661.2221.02

adm

40x

2

22.8812.8133.28

11

adm

40x

2

-22.80-11.6833.28

11

mnh

GT

1-3

TX

-82.32-60.3376.29

3

mnh

GT

1-3

TX

82.5969.7576.29

3

Sohar Al

288.60..178.86..0.85

adm

0.3

15 M

VA

0.000.000.00

3

adm

0.3

15 M

VA

-0.00-0.000.00

3

G~brk ST1-2 Ph-2

245.62152.4371.24

shns

0.2

MV

A

0.000.000.00

3

shns

0.2

MV

A

-0.00-0.000.00

3

liwa

0.31

5 M

VA

0.00-0.000.00

3

liwa

0.31

5 M

VA

-0.000.000.00

3

sipA

0.3

15 M

VA

0.00-0.000.00

3si

pA 0

.315

MV

A

-0.000.000.00

3so

h 0.

315

MV

A

0.00-0.000.00

3

soh

0.31

5 M

VA

-0.000.000.00

3

sah

0.31

5 M

VA

0.00-0.000.00

3

sah

0.31

5 M

VA

-0.000.000.00

3

khb

0.31

5 M

VA

0.00-0.000.00

3

khb

0.31

5 M

VA

-0.00-0.000.00

3

mis

0.3

15 M

VA

0.000.000.00

3

mis

0.3

15 M

VA

-0.00-0.000.00

3

mld

0.2

MV

A

0.000.000.00

3

mld

0.2

MV

A

-0.00-0.000.00

3

rtq 0

.2 M

VA

0.00-0.000.00

3

rtq 0

.2 M

VA

-0.00-0.000.00

3

brk

0.2

MV

A

0.00-0.000.00

3

brk

0.2

MV

A

-0.000.000.00

3

mob

0.3

15 M

VA

0.000.000.00

3

mob

0.3

15 M

VA

-0.00-0.000.00

3

wda

0.3

15 M

VA

0.00-0.000.00

3

wda

0.3

15 M

VA

-0.00-0.000.00

3

alf 0

.25

MV

A

0.00-0.000.00

3

alf 0

.25

MV

A

-0.00-0.000.00

3

arph

0.3

15 M

VA

0.00-0.000.00

3

arph

0.3

15 M

VA

-0.00-0.000.00

3

sur 0

.315

MV

A

0.00-0.000.00

3

sur 0

.315

MV

A

-0.000.000.00

3

sur1

25x2

104.1216.0345.27

10

sur1

25x2

-104.00-7.4345.27

10

bbal

i 0.3

15 M

VA

0.00-0.000.00

3

bbal

i 0.3

15 M

VA

-0.000.000.00

3

mdr

b 0.

315

MV

A 0.00-0.000.00

3

mdr

b 0.

315

MV

A

-0.00-0.000.00

3

mud

b0.3

15 M

VA 0.00

-0.000.00

3

mud

b0.3

15 M

VA

-0.00-0.000.00

3

alh

0.2

MV

A(1

) 0.000.000.00

3

alh

0.2

MV

A(1

)

-0.00-0.000.00

3

alw

0.16

MV

A(1

)

0.00-0.000.00

3

alw

0.16

MV

A(1

)

-0.00-0.000.00

3

sum

l 0.3

15 M

VA

0.000.000.00

3

sum

l 0.3

15 M

VA

-0.00-0.000.00

3

bhl 0

.315

MV

A

0.00-0.000.00

3

bhl 0

.315

MV

A

-0.000.000.00

3

izk

0.31

5 M

VA

(1) 0.00

0.000.00

3

izk

0.31

5 M

VA

(1)

-0.00-0.000.00

3

nzw

0.3

15 M

VA

0.00-0.000.00

3

nzw

0.3

15 M

VA

-0.000.000.00

3

alw

0.16

MV

A

0.000.000.00

3

alw

0.16

MV

A

-0.000.000.00

3

dank

0.2

MV

A

0.000.000.00

3

dank

0.2

MV

A

-0.00-0.000.00

3

alh

0.2

MV

A

0.000.000.00

3

alh

0.2

MV

A

-0.00-0.000.00

3

ibr

0.2

MV

A

0.000.000.00

3

ibr

0.2

MV

A

-0.00-0.000.00

3

wds

0.3

15 M

VA

0.000.000.00

3

wds

0.3

15 M

VA

-0.00-0.000.00

3

burim

i 0.3

15 M

VA

0.00-0.000.00

3

burim

i 0.3

15 M

VA

-0.000.000.00

3

Zoom Load

sur33_load

104.0047.38

bbal

i125

105.4561.6953.53

6

bbal

i125

-105.30-51.0053.53

6

alk-

bbal

i1

106.6362.8325.67

alk-

bbal

i1

-105.45-61.6925.67

mdr

bx2

104.1567.1554.43

6

mdr

bx2

-104.00-56.1354.43

6

mdrb33_load

104.0056.13

mdrb-mudb

-56.6415.7812.83

mdrb-mudb56.95-20.5512.83

bhl33_load

74.1039.99

nzw

125x

2

112.4270.2855.75

6

nzw

125x

2

-112.10-57.4355.75

6

adm33_load

22.8011.68

nzw33_load

112.1057.43

ibr cap2(1)

0.00-4.99

1

azb33_load

30.0015.37

arph33_load

50.0025.62

wdk cap2(1)

-0.00-19.63

4

alf1

25

149.1655.7465.70

6

alf1

25

-148.80-36.1165.70

6

alf cap2(1)

4

alf33_load

148.8076.23

wda1

25x2

-120.90-15.0751.10

10

wda1

25x2

121.2127.0451.10

10

wda cap1(1)

-0.00-20.01

4wda33_load

120.9055.08

rtq 6

3x2

89.8064.8892.80

4

rtq 6

3x2

-89.50-50.7292.80

4

rtq33_load

89.5050.72

mld

125x

2

134.3035.9257.70

7

mld

125x

2

-134.00-21.6357.70

7

mld33_load

134.0061.05

mld cap1(1)

0.00-19.71

4

mob

125x

2

78.286.1032.53

11

mob

125x

2

-78.10-0.4232.53

11

mob33_load

78.1040.01

brk1

25

169.9578.7577.54

5

brk1

25

-169.50-55.5277.54

5

brk cap2(1)

0.00-20.27

4

brk33_load

169.5096.06

mis

125x

2

80.2248.1538.41

10

mis

125x

2

-80.00-40.9938.41

10

mis33_load

80.0040.99

khb cap1(1)

-0.00-19.99

4

khb1

25x2

77.4811.4831.45

13

khb1

25x2

-77.30-5.8831.45

13

mis

-khb

-39.55-46.2011.98

mis

-khb

39.7940.4911.98

sah1

25x2

83.2250.1638.15

13

sah1

25x2

-83.00-42.5238.15

13

sah33_load

83.0042.52

sip1

25x2

88.3153.6539.68

10si

p125

x2

-88.10-45.1339.68

10

sip33A_load

88.1045.13

liwa33_load

75.0038.42

liwa1

25x2

75.2044.8434.67

12

liwa1

25x2

-75.00-38.4234.67

12

soh

125x

2

123.5243.1150.92

14

soh

125x

2

-123.20-29.9150.92

14

soh33_load

123.2069.82

soh cap2(1)

0.00-19.96

4

alw

315

x 2

122.4491.3923.63

15

alw

315

x 2

-122.18-80.2023.63

15

arph

500

x 2

80.6323.448.57

14

arph

500

x 2

-80.32-17.028.57

14

dnk-alh 2 x 2

32.9715.7146.08

dnk-alh 2 x 2

-32.23-15.7346.08

alh33_load

32.1023.24

alw-bur

114.0959.1179.98

alw-bur

-110.98-55.3379.98

wds

63

x 2

18.0910.1917.35

9

wds

63

x 2

-18.00-9.2217.35

9

alw33_load

24.0012.95

nahda-nzw

-47.52-28.7571.54

nahda-nzw

50.0030.9971.54

mnh-adm

22.916.685.10

mnh-adm

-22.88-12.815.10

mnh

-nzw

-232.33-196.3361.35

mnh

-nzw

234.83210.1961.35

bhl 1

25 T

X2

74.3046.5537.83

6

bhl 1

25 T

X2

-74.10-39.9937.83

6

nzw

-bhl

2

74.9946.9436.30

nzw

-bhl

2

-74.30-46.5536.30

Ax Manah

6.003.07

alk-sur x2

-104.12-16.0321.71

alk-sur x2

105.2614.5621.71

khb-sah x2

-117.27-51.9724.70

khb-sah x2

118.0851.6124.70

brk cap2

0.00-20.27

4

alh cap

0.00-4.88

1

khb cap1

-0.00-19.99

4

soh cap2

0.00-19.96

4

wdk cap2

-0.00-19.63

4

wda cap1

-0.00-20.01

4

alf cap2

4

mld cap1

0.00-19.71

4

sps

GT

1-3

TX

15

sps

GT

1-3

TX

15

sps

ST

1 TX

15

sps

ST

1 TX

15

brk

ST1

-2 P

2 TX

15

brk

ST1

-2 P

2 TX

15

brk

ST1

TX

15

brk

ST1

TX

15

brk

GT1

-2 T

X

16

brk

GT1

-2 T

X

16

wdj

GT

12-1

3 TX

9

wdj

GT

12-1

3 TX

9

wdj

GT

11 T

X

9

wdj

GT

11 T

X

9

wdj

GT9

-10

TX

9

wdj

GT9

-10

TX

9

wdj

GT

8 TX

9

wdj

GT

8 TX

9

wdj

GT

6-7

TX

9wdj

GT

6-7

TX

9wdj

GT

5 TX

9wdj

GT

5 TX

9wdj

GT

4 TX

9wdj

GT

4 TX

9wdj

GT

3 TX

9wdj

GT

3 TX

9

mnh

GT

4-5

TX

-181.42-159.6183.92

10

mnh

GT

4-5

TX

182.10188.7783.92

10

G~brk GT1-3 Ph-2

369.90202.3580.31

G~sps ST1

208.6082.3781.55

G~brk GT1-2

226.60139.8283.73

G~wdj GT8

25.2015.4078.75

G~wdj GT5

22.30-2.6764.61

G~wdj GT4

26.4012.1183.56

G~wdj GT3

16.6010.3161.54

G~wdj GT12-13

56.10-21.8765.10

G~wdj GT9-10

51.3046.5089.34

khb33_loadA

77.3045.87

wds33_load

18.009.22

bbali33_load

105.3051.00

wdk33_load

151.6081.83

arph-Filaj

-560.13-215.8140.15

arph-Filaj

562.91240.1640.15

msq

500

x 2

477.34175.5653.13

10

msq

500

x 2

-476.67-115.3653.13

10

filaj

500

x 2

423.29148.7344.65

15

filaj

500

x 2

-422.70-100.1144.65

15

mis

-sis

-292.10-26.6919.35m

is-s

is

294.5617.5219.35

mis

500

x 2

284.6093.3930.16

15

mis

500

x 2

-284.18-68.6530.16

15

sis-sps x2

695.95275.7947.22

sis-sps x2

sipA

500

x 2

93.3660.3510.55

15

sipA

500

x 2

-93.01-52.5010.55

15

G~sps GT1-3

380.10160.9876.87

Ax Sohar

6.003.07

sis

500

x 2

395.44231.2745.38

8

sis

500

x 2

-394.83-187.2345.38

8

wdj

-liw

a x

2

133.0041.2026.32

wdj

-liw

a x

2

-132.36-40.9926.32

wda

-alf2

-149.16-55.7431.50

wda

-alf2

149.2756.0331.50

soh-

wdj

19.766.748.03

soh-

wdj

-19.74-8.338.03

G~wdj GT6-7

50.4041.2390.19

G~brk ST1

208.60124.3486.73

arph

-azb

30.18-12.166.90

arph

-azb

-30.14-18.586.90

rsl33_load

141.7087.82

alka

mil

GT

1-3

TX

-266.06-161.57101.64

11

alka

mil

GT

1-3

TX

267.60218.25101.64

11

mld-rtq

90.2164.4322.43

mld-rtq

-89.80-64.8822.43

ibr-dnk x 2

87.78-7.3354.23

ibr-dnk x 2

-85.618.9254.23

alh

40 x

2

32.2315.7351.36

2

alh

40 x

2

-32.10-13.4751.36

2

bur33_load

110.8083.10

bur 1

25x

2

110.9855.3353.21

5

bur 1

25x

2

-110.80-43.2753.21

5

msq-jah1 x2

137.6332.0627.90

msq-jah1 x2

-136

.52

-30.

3827

.90

dnk

15 x

2

20.096.8377.66

4

dnk

15 x

2

-19.90-5.0577.66

4

alw

30

x 2

24.1214.8047.42

8

alw

30

x 2

-24.00-12.9547.42

8

PDO Network

50.00 ..30.99 ..0.85

UAE

122.70..76.04 ..0.85

G~mnh GT1-3

82.5969.7592.99

nzw-ibr

11.1746.6412.56

nzw-ibr

-10.67-57.5412.56

Ax Alkamil

6.003.07

izk-

mud

b

130.2325.8227.67

izk-

mud

b

-128.63-22.6627.67

izk33_load

65.0033.30

izk4

0 x

2

65.2540.33103.65

5

izk4

0 x

2

-65.00-33.30103.65

5

mudb33_load

71.5034.63

mud

b 63

x 2

71.6843.2273.35

2

mud

b 63

x 2

-71.50-34.6373.35

2

alk-mdrb x2

-47.52-82.9320.13

alk-mdrb x2

48.1781.1120.13

sis-sah

-201.30-101.7742.48

sis-sah

203.09109.1342.48

ibr cap2

0.00-4.99

1

dnk cap2

1

dnk cap1

1

bur cap2

0.00-19.92

4

bur cap1

0.00-19.92

4

shns cap2

0.00-20.28

4

shns cap1

0.00-20.28

4

brk

GT1

-3 P

2 TX

16

brk

GT1

-3 P

2 TX

16

gbr G

T1-

3 TX

3gbr G

T1-

3 TX

3gbr S

T1-3

TX

3

rsl G

T1-2

TX

3

rsl G

T1-2

TX

3

G~mnh GT4-5

182.10188.7779.48

G~gbr_GT1-3

48.305.6754.03

dnk33_load

19.9014.93

ibr33_load

95.9049.13

filaj

-brk

ps3-

4

490.20222.4034.88

filaj

-brk

ps3-

4

-489.37-216.2834.88

filaj

-brk

ps 1

-2

-489.37-216.2834.88

filaj

-brk

ps 1

-2

490.20222.4034.88

ibr

63 T

X2

96.2848.6295.75

2

ibr

63 T

X2

-95.90-39.1695.75

2

sps-

sia

x 2

143.3755.1510.34

sps-

sia

x 2

-143.36-84.5710.34

Dsl Sohar

31.0015.88

sip220_load

50.0024.22

sis-

soh

191.7478.1038.09

sis-

soh

-190.39-73.4238.09

liwa-shns x 2

37.16-13.547.51

liwa-shns x 2

-37.1210.957.51

shns33_load

37.0027.75

shns

63

x 2

37.12-10.9530.86

14

shns

63

x 2

-37.0012.8130.86

14

sip132_load

30.0014.53

Ax_wdj

7.003.59

wdj-alw

187.6143.8157.85

wdj-alw

-184.33-37.5857.85

mld-mis

243.5266.7049.80

mld-mis

-242.52-61.7349.80

filaj

-mld

18.01-38.638.48

filaj

-mld

-17.9233.628.48

brk-filaj

440.6166.4987.61

brk-filaj

-438.30-52.4887.61

Dsl Barka phase 1

25.0012.81

Ax Barka ph-2

6.003.07

Ax Barka phase1

6.003.07

rsl-mob

-188.1541.8138.32

rsl-mob

188.64-39.8838.32

mob-brk

-266.9233.7753.51

mob-brk

268.36-26.2753.51

G~gbr_ST3

gbr33_load

58.7030.07

suml33_load

78.0035.54

sum

63

x 2

78.2145.4776.26

5

sum

63

x 2

-78.00-35.5476.26

5

rsl 7

5 x

4

142.20105.9661.18

7

rsl 7

5 x

4

-141.70-87.8261.18

7

alw220-uae220

-122.44-91.399.77

alw220-uae220

122.7076.049.77

wds-

dnk

x 2

145.3123.7487.22

wds-

dnk

x 2

-140.84-15.2187.22

G~alk GT1-3

267.60218.2594.93

alw-wds x 2

168.3143.8798.52

alw-wds x 2

-163.40-33.9398.52

G~rsl_GT1-2

153.00164.4081.96

sum

i-izk

sum

i-izk

-114.70-4.0123.67

DIg

SILE

NT


Page | 137




OETC Planning Dpt.




(Master Model)


MSQ

Yitti

Ghubrah P/S

Seeb Main

AlMawalih

Sumail

Rusail P/S

Sohar IWPP

Blue

Wadi Jizzi P/S

OMIFCO

OCC

OMCOFigure C.3 OETC Transmission System

2011 Max. load Flow Condition

Shinas

BB Ali

Mudarb

Mhdhabi

Izki

Nizwa

PDO

Ibri

Al Hail

Wadi Sa'a

Dank

Al Wasit ( Mhadah)

Liwa

Sohar Refinery

Sohar Ind Port-BSohar Ind Port-A

Sohar Grid (Old)

Al Khabourah

Saham

Rustaq

Muladha (Old)


Nakhal

Mobalah

Wadi Adai

Wadi Al Kabir

Al-Misfah

Air Port High

Azaiba Coast

Bousher

Jahloot


Sohar Aluminum

AES Barka P/S

Manah P/S

Al Kamil P/S

AlFalaj

Qurum

Sur

Bahla

Muttrah

Filaj

Quriat

Barka Main

Adam

Al Buraimi


0.415 busbar.. 0.411.00

-113.03

msq33-B

32.971.00

-143.03

gbr Tem33

30.830.93

-144.60

maw33 A 32.951.00

-143.07

msq33-A32.750.99

-143.08

mob3332.881.00

-136.72

maw33 B

32.770.99

-143.10

0.415 busbar..0.410.99

-113.10

Ibri 220205.300.9319.48

Rusail A 132132.671.0110.92

msf33

32.901.00

-142.91

Ghoubrah A132

129.620.9818.17

Ghoubrah B132

129.840.9810.14

ytt3

3

32.6

80.

99-1

45.2

6

wds33

32.971.0052.63

0.415 busbar..0.411.00

-106.72

qrm3333.111.00

-142.93

0.415 busbar..0.410.99

-114.43

seb33

32.660.99

-144.43

0.415 busbar..0.410.99

-114.43

0.415 busbar..0.411.00

-113.07

0.415 busbar..0.411.00

-112.91

0.415 busbar.. 0.410.99

-113.08

0.415 busbar..0.431.05

-105.82

bsr33B32.981.00

-135.82

jah3

332

.84

1.00

-146

.06

0.415 busbar..0.411.0082.63

jah1

32

126.

950.

967.

15


216.130.9826.96

wds132

137.111.0423.99

dnk132

124.140.9413.79

ytt1

3212

5.78

0.95

6.42

seb132

130.620.999.89

msq132

129.620.9810.14

msq220

214.680.9817.83

Misfah132

131.421.0010.29

ibr132

127.920.9715.88

gbr33

31.530.96

-141.38

wda132

129.170.989.20

maw132

131.351.0010.27

Rusail B 132129.550.9816.17

0.415 busbar..0.410.9914.93

azb11

10.870.99

-15.07

0.41

5 bu

sbar

..

0.41

0.99

80.7

5

soh3

3(..

32.7

50.

9950

.75

wdk132

128.500.978.59

0.415 busbar..0.410.99

-110.80

adm33

32.710.99

-140.80

0.41

5 bu

sbar

..0.

421.

00-1

01.9

9

0.415 busbar..0.421.0184.16

blue33

33.221.0154.16

0.415 busbar..0.421.0081.40

0.415 busbar..0.411.00

-99.61

liwa33

32.901.00

-129.61

0.415 busbar..0.411.0090.73

0.415 busbar..0.421.0079.60

soh33

33.131.0049.60

0.415 busbar..0.410.99

-100.18

0.415 busbar..0.411.00

-101.91

0.415 busbar..0.411.0077.45

mis33

32.921.0047.45

0.415 busbar..0.411.00

-105.76

mld3332.851.00

-135.76

0.415 busbar..0.410.99

-107.79

0.415 busbar..0.421.00

-106.74

brk33

33.111.00

-136.74

0.415 busbar..0.421.00

-112.93

0.415 busbar..0.410.99

-115.13

muttr3332.770.99

-145.13

0.415 busbar..0.410.99

-114.71

wda33A

32.800.99

-144.71

0.415 busbar..0.411.00

-115.56

alf33

32.841.00

-145.56

0.415 busbar..0.421.0064.37

wdk33

33.071.00

-145.63

0.415 busbar..0.411.00

-103.35

arph33

32.891.00

-133.35

0.415 busbar..0.431.04

-106.22

bsr33A

32.660.99

-136.22

0.41

5 bu

sbar

..0.

411.

00-1

16.0

60.

415

busb

ar..

0.41

1.00

-116

.06

0.41

5 bu

sbar

..0.

410.

99-1

15.2

6

0.415 busbar..0.411.00

-114.56

qryt33

32.941.00

-144.56

0.415 busbar..0.421.00

-140.68

0.415 busbar..0.410.98

-137.06

bbali33

32.450.98

-167.06

0.415 busbar..0.410.99

-132.13

mdrb33

32.590.99

-162.13

0.415 busbar..0.400.97

-127.38

mudb33

32.160.97

-157.38

0.415 busbar..0.410.999.82

alh3332.700.9939.82

0.415 busbar..0.411.0081.50

alw33

32.941.0051.50

suml33

32.440.98

-144.14

0.415 busbar..0.410.98

-114.14

0.415 busbar..0.431.03

-115.40

bhl33

32.400.98

-145.40

0.415 busbar..0.431.02

-118.09

izk33

32.330.98

-148.09

0.415 busbar..0.431.03

-115.42

nzw33

32.390.98

-145.42

0.415 busbar..0.411.0012.75

0.415 busbar..0.410.999.82

0.415 busbar..0.410.99

-168.39

ibr33

32.570.99

-138.39

dnk33

32.871.0042.75

0.415 busbar..0.411.0081.50

0.415 busbar0.411.00

-102.28

sur132A

132.001.00

-16.14

bhl132

123.960.947.99

alf132129.030.989.04

rtq 33

32.690.99

-137.79

sah33

32.650.99

-130.18

sip33A

32.921.0060.73

alh132

122.820.9312.86

bur33

32.991.00

-132.28

adm132

132.021.0011.05

mnh132

132.781.0111.57

muttr132

128.350.978.87

qrm 132

128.830.989.38

17.0

01.

00-1

07.4

3

filaj220

225.861.0325.15

blue220

225.601.0324.86

khb33A

32.931.00

-131.91

sur33

33.111.00

-170.68

sipA132

132.111.0034.36

shns3333.031.0051.40

liwa 132134.741.0223.77

shns132

134.771.0223.39

khb132A

128.780.9821.57

bbali132

123.960.94

-12.29

wdj132

137.131.0425.60

soh132

133.931.0125.04

brkps220

228.081.0426.35

nhl3

3A

33.1

21.

00-1

31.9

9

bur132

135.521.0322.91

alw132138.561.0524.55

nahda132 138.701.0512.83

Nhl

132

130.

180.

9919

.60

qryt132126.270.966.73

nzw132

127.550.979.64

izk132

123.620.946.96

mudb132

119.730.91-1.64

azb 132

129.860.9818.84

alkamil132

129.470.98-9.30

sah132

129.750.9823.61

14.9

61.

00-1

33.4

0

11.2

01.

02-1

34.1

8

11.0

01.

0074

.49

arph220219.361.0021.17

mis220

221.581.0124.71

sipB220231.631.0535.88

sipA220231.551.0535.85

sps220

231.651.0535.89

sis220

223.551.0229.95

sipB132

137.661.0435.07

sis132

132.891.0126.31

rtq132

125.540.9518.69

mdrb132121.880.92-7.48

mis132A

129.000.9821.01

arph132

130.080.9918.88

filaj132

130.800.9919.96

mld132

127.900.9719.76

mob132129.490.9816.84

brk132

129.830.9818.45

bsr132129.360.9818.16

suml132

125.510.9512.01

rsl3332.600.99

-137.47

alw220(UAE)

220.301.0028.37

Muttrah cap1

0.00-19.72

4

Muttrah cap2

0.00-19.72

4

msq

0.2

MV

A-B

0.000.000.00

3

msq

0.2

MV

A-B

-0.00-0.000.00

3

msq33_load-B

82.7044.64

msq

125x

2-B

82.9052.1339.90

7

msq

125x

2-B

-82.70-44.6439.90

7

gbrTem33_load

30.0015.37

Mawallah cap2

0.00-19.94

4

Mawallah cap1

0.00-19.94

4

MSQ cap2-A

0.00-19.70

4

MSQ cap1-A

0.00-19.70

4

msq

0.2

MV

A-A

-0.000.000.00

3

msq

0.2

MV

A-A

0.00-0.000.00

3

Moballh cap2

-0.00-19.85

4

Moballh cap1

-0.00-19.85

4

msq

125x

2-A

-80.00-3.7932.90

9

msq

125x

2-A

80.179.5632.90

9

gbr 4

0 x

1

30.1218.8490.41

14

gbr 4

0 x

1

-30.00-15.3790.41

14

MS

Q-Q

uram

161.0146.5132.81

MS

Q-Q

uram

-160.64-45.4532.81

maw

0.3

15 M

VA

B 0.000.000.00

3

maw

0.3

15 M

VA

B

-0.000.000.00

3

maw

125

B

-80.00-31.6235.77

11

maw

125

B

80.2138.5335.77

11

maw33_load B

80.0031.62

maw33_load A

77.1030.47

maw

125

A

-77.109.4031.12

13

maw

125

A

77.29-3.6431.12

13

Wad

i Ada

i-Wad

i Kab

air

105.1326.0242.54

Wad

i Ada

i-Wad

i Kab

air

-104.86-25.6242.54

Al wasit-Ibri 220 kV

-273.65-85.4420.15

Al wasit-Ibri 220 kV

276.8980.2520.15

Ibri

220

kV T

X

273.6585.4430.76

10

Ibri

220

kV T

X

-273.23-62.1830.76

10

Bousher cap 2

0.00-19.98

4

Bousher cap 1

0.00-19.98

4

jahl

oot S

hunt

2

0.00

-19.

81

4 jahl

oot S

hunt

1

0.00

-19.

81

4

rsl-maw

267.76105.1728.64

rsl-maw

-266.27-102.5828.64

Airp

ort-B

oush

er

69.384.2614.10

Airp

ort-B

oush

er

-69.05-4.6714.10

rsl G

T4-5

TX

3

rsl G

T4-5

TX

3

G~rsl_GT4-5

160.40112.9292.75

rsl G

T3

TX

3

rsl G

T3

TX

3

G~rsl_GT3

77.1049.1666.75

rsl G

T8

TX

3

rsl G

T8

TX

3

rsl G

T7

TX

3rsl G

T7

TX

3

G~rsl_GT8

90.7042.7585.70

G~rsl_GT7

91.6037.6766.03

rsl-m

sf x

2

-150.68-93.6734.19

rsl-m

sf x

2

151.0794.8434.19

Ghoubrah-Bousher

146.3179.9533.24

Ghoubrah-Bousher

-146.02-86.6433.24

G~gbr_ST4

37.509.6459.57

gbr S

T4

TX

3

gbr S

T4

TX

3

gbr G

T12

TX

3

gbr G

T12

TX

3

G~gbr_GT12

91.7584.1779.69

Dsl Ghoubrah

28.0014.34

Ax Ghoubrah

7.003.59

gbr G

T10

-11

TX

3

gbr G

T10

-11

TX

3

G~gbr_GT10-11

52.4021.8560.40

mob

0.3

15 M

VA

0.000.000.00

3

mob

0.3

15 M

VA

-0.000.000.00

3

seb

0.15

MV

A

0.00-0.000.00

3

seb

0.15

MV

A

-0.000.000.00

3

seb

0.12

7 M

VA

0.00-0.000.00

3

seb

0.12

7 M

VA

-0.000.000.00

3

maw

0.3

15 M

VA

0.00-0.000.00

3

maw

0.3

15 M

VA

-0.000.000.00

3

msf

0.3

15 M

VA 0.00

0.000.00

3

msf

0.3

15 M

VA

-0.000.000.00

3

bsr 0

.315

MV

A

0.00-0.000.00

3

bsr 0

.315

MV

A

-0.000.000.00

3

yitt 0.315 MVA

0.00

0.00

0.00

3yitt 0.315 MVA

-0.0

0-0

.00

0.00

3

yitt125x2

38.8

322

.56

18.8

8

10

yitt125x2

-38.

70-1

9.83

18.8

8

10

wds

0.3

15 M

VA 0.00

-0.000.00

3

wds

0.3

15 M

VA

-0.00-0.000.00

3

bsr33_loadB

101.1051.80

Mis

fah1

25x2

80.1948.1637.58

8

Mis

fah1

25x2

-80.00-40.9937.58

8

mob33_load

86.2044.16

dnk-

alh

2 x

2

36.6613.838.53

dnk-

alh

2 x

2

-36.55-19.378.53

msq33_load-A

80.0043.18

gbr G

T13

TX

3

gbr G

T13

TX

3

gbr G

T4-

9 TX

5

rsl G

T6

TX

3

rsl G

T6

TX

3

rsl G

T1-2

TX

3

rsl G

T1-2

TX

3

G~gbr_GT13

91.7582.1278.81

G~gbr_GT4-9

G~gbr_ST5-6

59.1032.5982.81

msf33_load

80.0040.99

arph-Filaj

-784.04-232.8153.81

arph-Filaj

789.04284.4553.81

msq

500

x 2

602.34155.4763.84

12

msq

500

x 2

-601.47-66.8463.84

12

gbr-

msq

-103.68-91.5113.51

gbr-

msq

103.8760.9713.51

ytt3

3_lo

ad

38.7

019

.83

qrm33_load

60.0030.74

jah-ytt x2

38.9

318

.16

9.04

jah-ytt x2

-38.

83-2

2.56

9.04

Ax Rusail

7.003.59

msf

-wda

x2

-70.16-48.2416.69

msf

-wda

x2

70.4945.5116.69

gbr S

T5-6

TX

3gbr S

T5-6

TX

3

G~rsl_GT6

80.2063.4596.70

mqb-wda

233.7514.8145.77

mqb-wda

-233.16-12.0645.77

MS

Q-A

rph

-602.34-155.4741.82

MS

Q-A

rph

605.47183.9641.82

seb33_load

108.3055.48

maw

-seb

108.7867.6924.81

maw

-seb

-108.61-67.7024.81

seb

125x

2

108.6167.7051.73

11

seb

125x

2

-108.30-55.4851.73

11

rsl-mob

-134.5126.1526.83

rsl-mob

134.75-25.9026.83

rsl-s

umi x

2

-247.65-58.6851.35

rsl-s

umi x

2

250.7274.3751.35

wds-

dnk

x 2

ibr-dnk x 2

-59.36-21.9537.74

ibr-dnk x 2

60.3919.9037.74

alw

-wds

x 2

30.2813.4218.65

alw

-wds

x 2

-30.11-16.9418.65

G~rsl_GT1-2

154.20149.0478.27

Transport

20.009.69

G~

New Soha 375 MW

358.3078.8678.27

G~wdj GT11

27.0010.3577.11

Garamco (132liwa)

30.0014.53

Ax

New

Bar

ka

4.002.05

Dsl

Bar

ka p

hase

2

31.2015.98

Ax New Sohar

4.002.05

Azi

ba 0

.5M

VA

0.000.000.00

3

Azi

ba 0

.5M

VA

-0.00-0.000.00

3

mis

-blu

e(1)

mis

-blu

e(1)

-26.74-125.30

8.35

filaj

-Blu

e(1)

filaj

-Blu

e(1)

-47.05-66.765.23

OMIFCO

0.00 MW0.00 Mvar

1.00

SVS

Static Va..

0.00-166.95

OCC

0.00 MW0.00 Mvar

1.00

OMCO

11.00 ..6.82 Mvar

0.85

soh Temp 0.16 MVA

-0.0

00.

000.

00

3

soh Temp 0.16 MVA0.

00-0

.00

0.00

3

soh temp 60MVA-2

7.80

-14.

2453

.82

13

soh temp 60MVA

27.8

617

.24

53.8

2

13

soh

Tem

load

27.8

014

.24

Line(1)

-27.

86-1

7.24

12.3

9Line(1)

27.8

617

.24

12.3

9

Line

(2)

Line

(2)

35.6758.5625.88

Line

-7.55-41.3615.90

Line

New

Bar

ka T

x 1-

2

-357.38-110.7083.68

16

New

Bar

ka T

x 1-

2358.30162.1583.68

16

G~brk ST1-2 Ph-2

163.97125.0150.82

SRC

19.20 ..11.90 ..0.85

qrm

-mut

tr..

qrm

-mut

tr..

-100.21-20.2120.17

liwa-

shns

42.17-9.058.11

liwa-

shns

-42.136.458.11

alh cap(1)

0.00-4.91

1

sis-

sps

x2(1

)si

s-sp

s x2

(1)

-809.13-170.0253.38

sis-

sps

x2

816.64216.1953.13

sis-

sps

x2

izk-nzw

-169.65-76.8238.15

izk-nzw

171.2483.1538.15

mis

-blu

e

26.9254.567.26

mis

-blu

e

filaj-Blue

47.07-1.573.09

filaj-Blue

sis-

alw

x2

249.21130.0018.91

sis-

alw

x2

-247.80-136.9018.91

adm

40x

2

25.5814.4236.75

13

adm

40x

2

-25.50-13.0636.75

13

Sohar Al

219.00..135.72..0.85

sip-B

70.0033.90

adm

0.3

15 M

VA

0.00-0.000.00

3

adm

0.3

15 M

VA

-0.000.000.00

3

nhkl 0.315 MVA

0.00

-0.0

00.

00

3

nhkl 0.315 MVA

-0.0

0-0

.00

0.00

3

Nkh 125x2

41.1

323

.77

19.2

7

8

Nkh 125x2

-41.

00-2

1.00

19.2

7

8

blue

0.3

15 M

VA

0.00-0.000.00

3

blue

0.3

15 M

VA

-0.00-0.000.00

3

blue

160

x2

-20.00-10.257.17

16

blue

160

x2

20.1312.207.17

16

shns

0.2

MV

A

0.000.000.00

3

shns

0.2

MV

A

-0.000.000.00

3

liwa

0.31

5 M

VA

0.000.000.00

3

liwa

0.31

5 M

VA

-0.00-0.000.00

3

sipA

0.3

15 M

VA

0.00-0.000.00

3si

pA 0

.315

MV

A

-0.00-0.000.00

3so

h 0.

315

MV

A

0.00-0.000.00

3

soh

0.31

5 M

VA

-0.00-0.000.00

3

sah

0.31

5 M

VA

0.00-0.000.00

3

sah

0.31

5 M

VA

-0.000.000.00

3

khb

0.31

5 M

VA

0.000.000.00

3

khb

0.31

5 M

VA

-0.00-0.000.00

3

mis

0.3

15 M

VA

0.00-0.000.00

3

mis

0.3

15 M

VA

-0.00-0.000.00

3

mld

0.2

MVA

0.00-0.000.00

3

mld

0.2

MVA

-0.000.000.00

3

rtq 0

.2 M

VA

0.00-0.000.00

3

rtq 0

.2 M

VA

-0.00-0.000.00

3

brk

0.2

MV

A

0.00-0.000.00

3

brk

0.2

MV

A

-0.000.000.00

3

qrm

0.3

15 M

VA

0.00-0.000.00

3

qrm

0.3

15 M

VA

-0.00-0.000.00

3

qrm

125x

2

60.1535.2028.57

7

qrm

125x

2

-60.00-30.7428.57

7

mut

tr 0.

315

MV

A 0.00-0.000.00

3

mut

tr 0.

315

MV

A

-0.000.000.00

3

Mut

trah

125x

2

100.2120.2142.07

8

Mut

trah

125x

2

-100.00-11.7942.07

8

wda

0.3

15 M

VA

0.00-0.000.00

3

wda

0.3

15 M

VA

-0.00-0.000.00

3

alf 0

.25

MV

A

0.00-0.000.00

3

alf 0

.25

MV

A

-0.000.000.00

3

wdk

0.2M

VA

0.000.000.00

3

wdk

0.2M

VA

-0.000.000.00

3

wdk1

25x2

104.8625.6244.34

10

wdk1

25x2

-104.60-16.2944.34

10

arph

0.3

15 M

VA 0.00

0.000.00

3

arph

0.3

15 M

VA

-0.00-0.000.00

3

bsr 0

.315

MV

A(2

) 0.000.000.00

3

bsr 0

.315

MV

A(2

)

-0.00-0.000.00

3

jah 0.315 MVA(2)

0.00

0.00

0.00

3jah 0.315 MVA(2)

-0.0

0-0

.00

0.00

3

jah 0.315 MVA

0.00

0.00

0.00

3jah 0.315 MVA

-0.0

0-0

.00

0.00

3

qryt

0.3

15 M

VA

0.00-0.000.00

3

qryt

0.3

15 M

VA

-0.000.000.00

3

sur 0

.315

MV

A

0.000.000.00

3

sur 0

.315

MV

A

-0.00-0.000.00

3

sur1

25x2

116.5865.5553.50

13

sur1

25x2

-116.40-53.0353.50

13

bbal

i 0.3

15 M

VA

0.00-0.000.00

3

bbal

i 0.3

15 M

VA

-0.000.000.00

3

mdr

b 0.

315

MV

A 0.00-0.000.00

3

mdr

b 0.

315

MV

A

-0.00-0.000.00

3

mud

b0.3

15 M

VA 0.00

-0.000.00

3

mud

b0.3

15 M

VA

-0.000.000.00

3

alh

0.2

MV

A(1

) 0.000.000.00

3

alh

0.2

MV

A(1

)

-0.000.000.00

3

alw

0.16

MV

A(1

) 0.000.000.00

3

alw

0.16

MV

A(1

)

-0.00-0.000.00

3

sum

l 0.3

15 M

VA

0.000.000.00

3

sum

l 0.3

15 M

VA

-0.000.000.00

3

bhl 0

.315

MV

A

0.00-0.000.00

3

bhl 0

.315

MV

A

-0.000.000.00

3

bhl 1

25x2

83.2352.7441.96

7

bhl 1

25x2

-83.00-44.8041.96

7

izk

0.31

5 M

VA

(1) 0.00

-0.000.00

3

izk

0.31

5 M

VA

(1)

-0.00-0.000.00

3

nzw

0.3

15 M

VA

0.00-0.000.00

3

nzw

0.3

15 M

VA

-0.000.000.00

3

dank

0.2

MV

A

0.000.000.00

3

dank

0.2

MV

A

-0.00-0.000.00

3

alh

0.2

MV

A

0.00-0.000.00

3

alh

0.2

MV

A

-0.00-0.000.00

3

ibr

0.2

MV

A

0.000.000.00

3

ibr

0.2

MV

A

-0.00-0.000.00

3

alw

0.16

MV

A

0.00-0.000.00

3

alw

0.16

MV

A

-0.00-0.000.00

3

burim

i 0.3

15 M

VA 0.00

-0.000.00

3

burim

i 0.3

15 M

VA

-0.00-0.000.00

3

Zoom Load

70.0033.90

sur33_load

116.4053.03

bbal

i125

118.0970.6758.62

9

bbal

i125

-117.90-57.1058.62

9

alk-

bbal

i1

119.5172.9728.11

alk-

bbal

i1

-118.09-70.6728.11

mdr

b 12

5x2

116.6076.5560.42

7

mdr

b 12

5x2

-116.40-62.8360.42

7

mdrb33_load

116.4062.83

mdrb-mudb

-165.5861.4337.16

mdrb-mudb168.32-50.3737.16

bhl33_load

83.0044.80

nzw

125

125.9980.5661.89

8

nzw

125

-125.60-64.3561.89

8

adm33_load

25.5013.06

nzw33_load

125.6064.35

ibr cap2(1)

-0.00-4.87

1

azb5

0x3

33.3520.7926.63

10

azb5

0x3

-33.20-17.0126.63

10

azb33_load

33.2017.01

arph

125x

2

55.4632.4226.07

11

arph

125x

2

-55.30-28.3326.07

11

arph33_load

55.3028.33

bsr1

25B

101.3420.3442.25

12

bsr1

25B

-101.10-11.8442.25

12

bsr1

25A

113.7370.9754.79

10

bsr1

25A

-113.40-58.1054.79

10

bsr33_loadA

113.4058.10

qryt

125x

2

30.1217.5114.59

10

qryt

125x

2

-30.00-15.3714.59

10

jah125

76.9

70.

4732

.01

14jah125

-76.

904.

5932

.01

14

wdk cap2(1)

-0.00-20.08

4

alf1

25x2

103.5223.1543.42

8

alf1

25x2

-103.30-13.3143.42

8

alf cap2(1)

4

alf33_load

103.3052.92

wda

125

-94.40-3.4938.94

12

wda

125

94.6211.2438.94

12

wda cap1(1)

-0.00-19.76

4wda33_load

94.4043.01

rtq 6

3x2

95.6470.0498.92

4

rtq 6

3x2

-95.30-54.0198.92

4

rtq33_load

95.3054.01

mld

125x

2

141.0340.0960.55

7

mld

125x

2

-140.70-24.4760.55

7

mld33_load

140.7064.10

mld cap1(1)

0.00-19.82

4

mob

125x

2

86.4011.1235.51

12

mob

125x

2

-86.20-4.4635.51

12

brk1

25x2

135.6251.3358.99

7

brk1

25x2

-135.30-36.4158.99

7

brk cap2(1)

0.00-20.13

4

brk33_load

135.3076.68

blue33_load

20.0010.25

mis

125x

2

89.8454.5743.03

10

mis

125x

2

-89.60-45.9043.03

10

mis33_load

89.6045.90

khb cap1(1)

-0.00-19.91

4

khb1

25

85.3017.2635.68

11

khb1

25

-85.10-10.6735.68

11

mis

-khb

-20.553.464.53

mis

-khb

20.58-10.394.53

sah1

25x2

94.4657.8245.06

10

sah1

25x2

-94.20-48.2645.06

10

sah33_load

94.2048.26

sip1

25x2

89.6154.6141.94

8si

p125

x2

-89.40-45.8041.94

8

sip33A_load

89.4045.80

liwa33_load

85.1043.60

liwa1

25x2

85.3351.5539.06

13

liwa1

25x2

-85.10-43.6039.06

13

soh

125x

2

134.6751.2856.81

12

soh

125x

2

-134.30-35.8056.81

12

soh33_load

134.3076.11

soh cap2(1)

0.00-20.16

4

2-W

indi

ng..

-357.47-33.6878.06

15

2-W

indi

ng..

358.3078.8678.06

15

alw

315

x 2

134.73169.4934.98

5

alw

315

x 2

-134.40-152.0134.98

5

alh33_load

36.4026.35

qrm

-mut

tr x2

100.4910.2519.88

qrm

-mut

tr x2

alw-bur

126.8070.1726.93

alw-bur

-126.02-69.9326.93

wds

63

x 2

30.1116.9426.77

15

wds

63

x 2

-30.00-15.3726.77

15

alw33_load

27.2014.68

nahda-nzw

-47.58-28.9870.64

nahda-nzw

50.0030.9970.64

mnh-adm

25.638.165.63

mnh-adm

-25.58-14.425.63

mnh

-nzw

-231.78-199.1760.67

mnh

-nzw

234.22212.5760.67

nzw

-bhl

2

84.0853.7840.26

nzw

-bhl

2

-83.23-52.7440.26

Ax Manah

6.003.07

alk-sur x2

-186.5867.4938.65

alk-sur x2

190.17-53.7438.65

khb-sah x2

-105.88-6.8820.86

khb-sah x2

106.465.3820.86

brk cap2

0.00-20.13

4

alh cap

0.00-4.91

1

khb cap1

-0.00-19.91

4

soh cap2

0.00-20.16

4

wdk cap2

-0.00-20.08

4

shns cap2

0.00-20.03

4

shns cap1

0.00-20.03

4

wda cap1

-0.00-19.76

4

alf cap2

4

mld cap1

0.00-19.82

4

sps

GT

1-3

TX

15

sps

GT

1-3

TX

15

sps

ST

1 TX

15

sps

ST

1 TX

15

brk

ST1

-2 P

2 TX

16 brk

ST1

-2 P

2 TX

16 brk

ST1

TX

16 brk

ST1

TX

16

brk

GT1

-3 P

2 TX

17

brk

GT1

-3 P

2 TX

17 brk

GT1

-2 T

X

17 brk

GT1

-2 T

X

17

wdj

GT

12-1

3 TX

14

wdj

GT

12-1

3 TX

14w

dj G

T11

TX

14w

dj G

T11

TX

14

wdj

GT9

-10

TX

9

wdj

GT9

-10

TX

9

wdj

GT

8 TX

9

wdj

GT

8 TX

9

wdj G

T6-

7 TX

9

wdj G

T6-

7 TX

9

wdj G

T5

TX

14

wdj G

T5

TX

14

wdj

GT

4 TX

9

wdj

GT

4 TX

9w

dj G

T3

TX9

wdj

GT

3 TX

9

mnh

GT

1-3

TX

5mnh

GT

1-3

TX

5 mnh

GT

4-5

TX

15

mnh

GT

4-5

TX

15

G~brk GT1-3 Ph-2

372.00173.7978.21

G~sps ST1

210.2087.5282.80

G~brk GT1-2

228.40119.6081.08

G~wdj GT8

25.409.0771.92

G~wdj GT5

22.5011.4672.64

G~wdj GT4

26.507.2479.03

G~wdj GT3

16.806.0256.21

G~wdj GT12-13

56.6020.7765.18

G~wdj GT9-10

51.7046.5089.72

G~gbr_GT1-3

48.6022.8859.68

khb33_loadA

85.1050.50

wds33_load

30.0015.37

bbali33_load

117.9057.10

wdk33_load

104.6056.46

arph

500

x 2

178.5748.8618.59

15

arph

500

x 2

-178.23-36.4118.59

15

filaj

500

x 2

419.37175.8344.36

15

filaj

500

x 2

-418.77-127.6344.36

15

mis

-sis

-262.74-12.2217.13m

is-s

is

264.68-4.1117.13

mis

500

x 2

289.48137.5231.86

15

mis

500

x 2

-289.04-110.4231.86

15

sipB

500

x 2

70.3440.647.73

15

sipB

500

x 2

-70.00-33.907.73

15

sipA

500

x 2

120.7576.2613.77

18

sipA

500

x 2

-120.41-66.9313.77

18

G~sps GT1-3

383.10171.4878.16

sis

500

x 2

295.2444.1329.42

15

sis

500

x 2

-294.81-20.0329.42

15

wdj

-liw

a x

2

158.4258.9631.48

wdj

-liw

a x

2

-157.50-57.0331.48

wda

-alf2

-103.52-23.1520.82

wda

-alf2

103.5723.0320.82

shns33_load

42.0031.50

shns

63

x 2

42.13-6.4533.99

15

shns

63

x 2

-42.008.5633.99

15

soh-

wdj

-35.29-58.5225.84

soh-

wdj

35.5558.4925.84

G~wdj GT6-7

50.8032.1283.25

G~brk ST1

210.20106.5484.16

rsl33_load

110.2068.30

qryt33_load

30.0015.37

muttr33_load

100.0051.23

nhl3

3_lo

ad

41.0

021

.00

jah3

3_lo

ad

76.9

035

.04

alka

mil

GT1

-3 T

X

-268.21-163.8499.46

11

alka

mil

GT1

-3 T

X

269.70218.2599.46

11

mld-rtq

96.1169.9423.91

mld-rtq

-95.64-70.0423.91

alh

40 x

2

36.5519.3755.56

6

alh

40 x

2

-36.40-16.5355.56

6

bur33_load

125.8094.35

bur 1

25x

2

126.0269.9357.21

10

bur 1

25x

2

-125.80-54.3857.21

10

jah-qryt x2

-30.12-17.516.99

jah-qryt x2

30.1

613

.99

6.99

msq-jah1 x2

147.3335.3529.85

msq-jah1 x2

-146

.06

-32.

6129

.85

dnk

63 x

2

22.708.1220.34

8

dnk

63 x

2

-22.60-7.0320.34

8

alw

30

x 2

27.3316.9751.61

11

alw

30

x 2

-27.20-14.6851.61

11

Filaj-Nakhal x2

41.1821.429.24

Filaj-Nakhal x2

-41.

13-2

3.77

9.24

PDO Network

50.00 ..30.99 ..0.85

UAE

164.30..101.82..0.85

G~mnh GT1-3

83.4069.7593.52

nzw-ibr

-101.9510.6520.73

nzw-ibr

103.65-15.0720.73

Ax Alkamil

6.003.07

izk-

mud

b

254.4730.3852.59

izk-

mud

b

-248.650.5352.59

izk33_load

72.8037.30

izk4

0x 2

73.1346.26116.12

6

izk4

0x 2

-72.80-37.30116.12

6

mudb33_load

80.1038.79

mud

b 63

x 2

80.3349.8582.72

3

mud

b 63

x 2

-80.10-38.7982.72

3

alk-mdrb x2

48.99-137.9730.42

alk-mdrb x2

-47.47141.5430.42

sis-sah

-200.92-63.2041.11

sis-sah

202.6170.1741.11

ibr cap2

-0.00-4.87

1

dnk cap2

1

dnk cap1

1

bur cap2

0.00-19.99

4

bur cap1

0.00-19.99

4

gbr G

T1-

3 TX

3gbr G

T1-

3 TX

3gbr S

T1-3

TX

3

G~mnh GT4-5

183.50198.0081.80

dnk33_load

22.6016.95

ibr33_load

108.9055.79

G~

New Barka GT 1-2

358.30162.1583.90

filaj

-brk

ps3-

4

628.98240.4542.71

filaj

-brk

ps3-

4

-627.74-229.3542.71

filaj

-brk

ps 1

-2

-627.74-229.3542.71

filaj

-brk

ps 1

-2

628.98240.4542.71

ibr

125

TX2

109.2057.3550.98

10

ibr

125

TX2

-108.90-46.0550.98

10

sps-

sib

x 2

70.3411.325.06

sps-

sib

x 2

-70.34-40.645.06

sps-

sia

x 2

240.78105.2617.19

sps-

sia

x 2

-240.75-134.3817.19

Dsl Sohar

31.0015.88

sip220_load

120.0058.12

Ax Sohar

6.003.07

sis-

soh

92.20-50.1420.00

sis-

soh

-91.8348.5920.00

sip132_load

50.0024.22

Ax_wdj

7.003.59

wdj-alw

50.47-54.7521.92

wdj-alw

-50.0251.4521.92

mld-mis

219.7452.3844.41

mld-mis

-218.95-48.7644.41

filaj

-mld

-18.18-61.2612.65

filaj

-mld

18.4056.9312.65

brk-filaj

359.2049.2970.22

brk-filaj

-357.72-40.7470.22

Dsl

Bar

ka p

hase

1

25.0012.81

Ax

Bar

ka p

h-2

6.003.07

Ax

Bar

ka

6.003.07

arph

-azb

33.40-9.967.66

arph

-azb

-33.35-20.797.66

mob-brk

-221.1614.7843.37

mob-brk

222.10-10.5843.37

G~gbr_ST3

gbr33_load

64.8033.20

gbr 4

2 x

2

16.4017.4528.98

10

gbr 4

2 x

2

-16.38-16.2128.98

10

suml33_load

87.3039.78

sum

63

x 2

87.5652.3485.15

6

sum

63

x 2

-87.30-39.7885.15

6

rsl 7

5 x

4

110.5879.6546.28

9

rsl 7

5 x

4

-110.20-68.3046.28

9

alw220-uae220

-163.81-112.8313.28

alw220-uae220

164.30101.8213.28

G~alk GT1-3

269.70218.2595.38

sum

i-izk

sum

i-izk

-157.950.1832.35

DIg

SILE

NT


Page | 138




Ghubrah P/S

Ghala

Azaiba Coast

Bousher

Multaqa

AlMawalih

Seeb Main

Sohar Refinery

Sohar Grid (Old)

Free Zone

Amerat

New Buraimi

Al Hail

Al Buraimi

Jahloot

Al-Misfah

Wadi Adai

Blue

OMIFCO

OCC

OMCO

Wadi Jizzi P/S


Shinas

Al Kamil

BB Ali

Mudarb

Mhdhabi

Izki

Nizwa University

Nizwa

PDO

Ibri

Wadi Sa'a

Dank

Al Wasit ( Mhadah)

Liwa


Al Khabourah

Saham

Rustaq

Muladha (Old)


Nakhal

Mobalah

Wadi Al Kabir

Air Port High

MSQYitti

Yankit



AES Barka P/S

Manah P/S

Al Kamil P/S

Rusail P/S

AlFalaj

Qurum

Sur

Sumail

Bahla

Muttrah

Filaj

Rawdah

Quriat

Barka Main

Adam


0.415 busbar..0.411.00

-106.69

msq33-B

32.951.00

-136.69

maw33 A33.151.00

-138.13

msq33 32.770.99

-136.63

gbr132 A132.271.0017.74

gbr132 B130.570.9916.78

qrm3333.261.01

-137.73

0.415 busbar.. 0.400.97

-104.54

Ghala33

32.010.97

-134.54

Ghala 132131.961.0018.41

azb 132132.281.0018.67

0.415 busbar..0.410.99

-108.65

maw33B

32.800.99

-138.65

ytt3

3

33.0

71.

00-1

37.2

6

New bur33

33.081.00

-131.17

alkamil132 133.591.0111.97

sis220 226.711.0330.09

wds33

32.750.9950.46

Free Zone132 136.591.0330.25

Free Zone 3333.181.0157.43

0.415 busbar..0.410.9979.48

Multaqa33

32.810.9949.48

Multaqa132134.671.0223.04

soh33

33.161.0049.90

0.415 busbar..0.421.0187.43

0.415 busbar..0.421.00

-101.17

New bur132130.150.9921.75

alh3332.991.0041.45

0.415 busbar..0.410.99

-107.01

Amerat 33

32.760.99

-137.01

Amerat132

129.270.9815.97

ibri 220212.110.9620.77

Sohar IPP220230.831.0534.50

Wad

i Ada

i220

220.

841.

0020

.13

Mis

fah

220

223.

641.

0221

.93

Barka IPP220

228.301.0425.68

0.415 busbar..0.431.05

-104.85

0.415 busbar..0.421.0014.55

azb1111.051.00

-15.45

wdk132

129.570.9816.17

0.415 busbar..0.421.0087.43

0.415 busbar..0.421.0079.90

0.415 busbar..0.421.00

-103.51

mob3333.031.00

-133.51

0.415 busbar..0.421.01

-107.73

0.415 busbar..0.421.00

-109.00

seb33

33.121.00

-139.00

0.415 busbar..0.421.00

-109.00

0.415 busbar..0.421.00

-108.13

0.415 busbar..0.421.00

-106.88

wda33A

33.141.00

-136.88

0.415 busbar..0.421.00

-103.75

arph33

33.051.00

-133.75

0.415 busbar..0.410.99

-106.63

0.415 busbar..0.431.04

-105.61

bsr33A

32.961.00

-135.61bsr33B

33.051.00

-134.85

jah3

333

.13

1.00

-136

.32

0.41

5 bu

sbar

..0.

421.

00-1

07.2

6

ynkt

33

32.7

80.

99-1

36.9

5

0.415 busbar..0.411.0011.45

0.415 busbar..0.411.0079.83

alw33

32.981.0049.83

0.415 busbar..0.411.0011.45

0.415 busbar..0.411.0079.83

0.415 busbar0.410.99

-102.45

rtq 33

32.941.00

-135.14

sip33A33.001.0057.43

alh132

125.920.9514.66

bur33

32.700.99

-132.45

jah1

3212

9.82

0.98

15.9

2

filaj220226.791.0324.97

soh132

135.361.0323.39

brkps220

228.201.0425.86

alw220 (Interconnected)224.431.0226.95

bur132

129.510.9821.24

alw132132.261.0023.11

seb132

136.651.0415.05

msq132

129.910.9816.74

11.0

01.

0081

.51

jah2

2022

0.44

1.00

18.0

0

msq220

220.271.0020.53

sps220

232.381.0632.52

ibr132131.501.0017.73

arph132132.511.0018.71

gbr33

32.690.99

-134.34

bsr132132.141.0017.75

maw132

137.311.0415.37

0.41

5 bu

sbar

..

0.42

1.00

79.1

3

soh3

3(..

33.1

01.

0049

.13

liwa 132132.921.0121.41

0.415 busbar..0.421.00

-106.13

adm33

33.091.00

-136.13

0.41

5 bu

sbar

..0.

421.

00-1

02.2

4

0.415 busbar..0.421.0082.90

blue33

33.101.0052.90

0.415 busbar..0.411.0078.84

0.415 busbar..0.410.99

-102.27

liwa33

32.720.99

-132.27

0.415 busbar..0.421.00

-100.61

0.415 busbar..0.421.00

-102.13

0.415 busbar..0.421.0077.49

mis33

33.141.0047.49

0.415 busbar..0.411.00

-105.70

mld3332.891.00

-135.70

0.415 busbar..0.411.00

-105.14

0.415 busbar..0.410.99

-102.70

brk33

32.690.99

-132.70

0.415 busbar..0.410.99

-108.89

muttr33

32.680.99

-138.89

0.415 busbar..0.421.00

-108.17

alf33

33.031.00

-138.17

0.415 busbar..0.411.0071.80

wdk33

32.971.00

-138.20

0.415 busbar..0.411.00

-107.55

msf33

32.841.00

-137.55

0.41

5 bu

sbar

..0.

421.

00-1

06.3

20.

415

busb

ar..

0.42

1.00

-106

.32

0.41

5 bu

sbar

..0.

410.

99-1

06.9

5

0.415 busbar..0.411.00

-105.93

qryt33

32.861.00

-135.93

0.415 busbar..0.421.00

-112.330.415 busbar..

0.421.00

-110.96

0.415 busbar..0.411.00

-109.21

alkamil33

32.951.00

-139.21

0.415 busbar..0.410.99

-114.74

bbali33

32.770.99

-144.74

0.415 busbar..0.411.00

-113.26

mdrb33

32.881.00

-143.26

0.415 busbar..0.411.0068.63

Rawdh33

32.931.0038.63

0.415 busbar..0.421.00

-112.75

mudb33

33.081.00

-142.75

suml33

32.861.00

-139.99

0.415 busbar..0.411.00

-109.99

0.415 busbar..0.431.05

-110.90

bhl33

33.041.00

-140.90

0.415 busbar..0.431.04

-109.77

izk33

32.800.99

-139.77

0.415 busbar..0.431.05

-109.64

nzwUnvst3332.981.00

-139.64

0.415 busbar..0.431.04

-109.02

nzw33

32.961.00

-139.02

0.415 busbar..0.410.9914.48

0.415 busbar..0.421.00

-166.74

ibr33

33.021.00

-136.74

dnk33

32.800.9944.48

0.415 busbar..0.410.9980.46

Ayjah3333.071.00

-140.96

Ayjah132

131.411.0010.64

sur132A 132.001.0010.99

bhl132

125.030.9512.57

alf132129.830.9816.47

sah33

33.071.00

-130.61

adm132

130.630.9915.80

mnh132

131.471.0016.36

muttr132128.240.9715.28

qrm 132128.770.9815.80

17.0

01.

00-1

10.8

9

arph220222.411.0122.11

blue220

227.061.0324.64

khb33A

33.101.00

-132.13

sur33

33.131.00

-142.33

sipA132

137.071.0431.10

shns3332.881.0048.84

shns132

132.871.0120.99

sur220A220.621.0013.04

khb132A

132.631.0021.47

bbali132

128.990.989.47

wdj132135.631.0323.40

rsl3333.111.00

-137.73

nhl3

3A

33.0

21.

00-1

32.2

4

wds132

130.170.9922.30

dnk132

127.360.9615.62

nahda132 136.761.0416.48

Nhl

132

131.

411.

0020

.60

qryt132129.090.9815.48

ynkt

132

127.

320.

9614

.48

ytt1

3212

7.45

0.97

14.5

6

nzwUnvst 132

128.190.9713.15

nzw132

128.830.9814.30

Rawdh132

126.520.969.75

izk132

128.470.9712.50

mudb132

126.890.9610.04

sah132

134.551.0223.23

15.0

01.

00-1

28.8

2

11.0

01.

00-1

29.4

3

mis220

224.391.0224.69

sipB220232.321.0632.49

sipA220232.281.0632.49

sipB132

137.061.0430.30

sis132

138.371.0525.66

Misfah132

138.041.0515.70

rtq132

129.610.9818.98

mdrb132128.710.9810.08

mis132A

131.641.0021.22

filaj132

132.541.0021.20

mld132

130.740.9920.15

mob132131.821.0020.22

brk132

132.261.0020.84

wda132

129.980.9816.63

suml132

133.491.0113.93

rsl132

138.661.0516.01

alw220 (1)

228.661.0428.33

Muttrah cap2

0.00-19.61

4

Muttrah cap1

0.00-19.61

4

rstq cap2

0.00-19.92

4

rstq cap1

0.00-19.92

4

msq

0.2

MV

A-B

-0.000.000.00

3

msq

0.2

MV

A-B

0.00-0.000.00

3

msq

0.2

MV

A-A

-0.00-0.000.00

3

msq

0.2

MV

A-A

0.000.000.00

3

msq

125-

B

-89.60-48.3643.23

7

msq

125-

B

89.8256.9443.23

7

msq33_load-B

89.6048.36

Gho

-MS

Q

175.6075.9838.40

Gho

-MS

Q

-174.78-90.8838.40

Mobalah cap2

0.00-20.04

4

Mobalah cap1

0.00-20.04

4

Mawallah cap2

0.00-20.18

4

Mawallah cap1

0.00-20.18

4

MSQ cap2

0.00-19.72

4

MSQ cap1

0.00-19.72

4

msq

125-

A

-84.00-5.9034.58

9

msq

125-

A

84.1812.1634.58

9

Airp

ort-B

oush

er

87.46-15.7617.68

Airp

ort-B

oush

er

-86.9515.8017.68

Dsl Gho

28.0014.34

Ax Gho

7.003.59

gbr G

T12

-13

TX(2

)

2

gbr G

T12

-13

TX(2

)

2

G~gbr_GT12-13

181.5089.2764.73

Breaker/S..Breaker/S..

gbr S

T6 T

X(2

)

5

gbr S

T6 T

X(2

)

5

G~gbr_ST6

29.5524.4594.12

Gha

la 0

.315

MVA

-0.00-0.000.00

4

Gha

la 0

.315

MVA

0.000.000.00

4

Gha

la 1

25M

VA

Tx

-70.00-35.8632.69 14

Gha

la 1

25M

VA

Tx

70.1941.8432.69

14

Ghala 33_load

70.0035.86

Airp

ort-G

hala

-70.19-41.8415.68

Airp

ort-G

hala

70.2740.9915.68

gbr-bsr

-66.45-66.4218.00

gbr-bsr

66.5359.3118.00

maw33_load B

96.4038.10

maw33_load A

82.1032.45

maw

125

B

-96.40-38.1041.72

14

maw

125

B

96.6647.5541.72

14 maw

0.3

15 M

VA

B 0.000.000.00

3

maw

0.3

15 M

VA

B

-0.00-0.000.00

3

maw

0.3

15 M

VA

A 0.000.000.00

3

maw

0.3

15 M

VA

A

-0.000.000.00

3

maw

125

A

-82.107.9232.84

16

maw

125

A

82.30-1.6232.84

16

Wad

i Ada

i-Wad

i Kab

air108.21

24.8421.68

Wad

i Ada

i-Wad

i Kab

air

-108.07-25.1221.68

sis-alw x2

265.5321.6217.13

sis-alw x2

-264.35-32.5017.13

Mis

fah-

Jahl

oot

-326

.59

-42.

2921

.56

Mis

fah-

Jahl

oot

328.

4440

.91

21.5

6

jah-qryt x2

-32.92-19.127.47

jah-qryt x2

32.9

715

.47

7.47

sis-soh

199.6376.8539.42

sis-soh

-198.19-71.5139.42

Sohar-Multaqa

87.5652.5219.24

Sohar-Multaqa

-87.44-53.1719.24

Free

Zon

e TX

70.1741.7131.56

10

Free

Zon

e TX

-70.00-35.8631.56

10

sip

B-F

ree

Zone

70.397.7415.13

sip

B-F

ree

Zone

-70.17-41.7115.13

Mul

taqa

125

87.4453.1740.12

13

Mul

taqa

125

-87.20-44.6740.12

13

Mul

taqa

0.3

15 M

VA 0.000.000.00

3

Mul

taqa

0.3

15 M

VA

-0.00-0.000.00

3

Multaqa33_load

87.2044.67

wdj-l

iwa

x 2

168.7368.0034.24

wdj-l

iwa

x 2

-167.64-64.8634.24

Free

Zon

e 0.

315

MVA

0.00-0.000.00

3

Free

Zon

e 0.

315

MVA

-0.000.000.00

3

Free Zone 33_load

70.0035.86

New Burimi -Burimi

86.0831.6817.97

New Burimi -Burimi

-85.94-32.5117.97

Wasit- New Burimi

156.9575.7133.59

Wasit- New Burimi

-156.20-73.5233.59

New

bur

imi 0

.315

MV

A

0.00-0.000.00

3

New

bur

imi 0

.315

MV

A

-0.000.000.00

3

New bur33_load

70.0035.86

New

bur

125

70.1341.8433.76

8

New

bur

125

-70.00-35.8633.76

8

alw

30

x 2

29.5518.4857.97

8

alw

30

x 2

-29.40-15.8757.97

8

Am

erat

0.3

15 M

VA 0.00

-0.000.00

3

Am

erat

0.3

15 M

VA

-0.000.000.00

3

Amerat 33_load

70.0035.86

MS

Q-A

mer

at

71.5113.4914.30

MS

Q-A

mer

at

-71.35-15.5514.30

Am

erat

132

TX

70.1941.9533.44

11

Am

erat

132

TX

-70.00-35.8633.44

11

Am

erat

-Jah

loot

1.16-26.395.18

Am

erat

-Jah

loot

-1.1

523

.83

5.18

Wasit-Ibri 220

248.2295.7118.37

Wasit-Ibri 220

-245.60-111.9118.37

Ibri

220

TX

245.60111.9128.03

10

Ibri

220

TX

-245.19-91.5428.03

10

sis-

sps

3&4

607.3777.5038.56

sis-

sps

3&4

sis-

sps

3&4-

sis-

sps

3&4-

-603.42-74.7438.71

New

Soh

ar IP

P T

X

-613.37-80.5778.08

15

New

Soh

ar IP

P T

X

614.20158.7078.08

15

G~

New Sohar IPP

614.20158.7078.08

Ax New Sohar

6.003.07

Sohar Aluminum

229.70..142.36..0.85

Barka IPP-Misfah 220

607.37153.2039.80

Barka IPP-Misfah 220

-603

.95

-124

.33

39.8

0

wadi adai TX 500 MVA

274.

7387

.30

28.7

6

15wadi adai TX 500 MVA

-274.31-64.2728.76

15Misfah-Wadi Adai 220

275.

5183

.43

18.8

4Misfah-Wadi Adai 220

-274

.73

-87.

3018

.84

New Barka Aux

6.003.07

Bar

ka IP

P T

x

-613.37-156.2876.99

11

Bar

ka IP

P T

x

614.20232.6576.99

11

G~

New Barka(4)

614.20232.6580.84

jahl

oot c

ap 2

0.00

-20.

16

4

jahl

oot c

ap 1

0.00

-20.

16

4

jah-ytt x2

76.5

641

.02

17.4

5

jah-ytt x2

-76.

16-4

3.69

17.4

5

Bousher cap 2

0.00-20.06

4

Bousher cap 1

0.00-20.06

4

Transport Load

20.009.69

Azi

ba 0

.5M

VA 0.00

0.000.00

3

Azi

ba 0

.5M

VA

-0.000.000.00

3

sis-

sps

1&2 346.43

136.8923.87

sis-

sps

1&2

sis-

sps

1&

2-si

s-sp

s 1

&2-

-344.89-164.1424.32

alh cap(1)

0.00-5.00

1

sps-B ..

120.0058.12

sipA

0.3

15 M

VA

0.00-0.000.00

3

sipA

0.3

15 M

VA

-0.00-0.000.00

3

soh

0.31

5 M

VA

0.00-0.000.00

3

soh

0.31

5 M

VA

-0.000.000.00

3

mob

0.3

15 M

VA

0.000.000.00

3

mob

0.3

15 M

VA

-0.000.000.00

3

qrm

0.3

15 M

VA

0.00-0.000.00

3

qrm

0.3

15 M

VA

-0.00-0.000.00

3

seb

0.15

MV

A

0.00-0.000.00

3

seb

0.15

MV

A

-0.000.000.00

3

seb

0.12

7 M

VA

0.000.000.00

3

seb

0.12

7 M

VA

-0.00-0.000.00

3

wda

0.3

15 M

VA

0.000.000.00

3

wda

0.3

15 M

VA

-0.00-0.000.00

3

arph

0.3

15 M

VA 0.00

-0.000.00

3

arph

0.3

15 M

VA

-0.000.000.00

3

bsr 0

.315

MV

A(2

) 0.00-0.000.00

3

bsr 0

.315

MV

A(2

)

-0.000.000.00

3

bsr 0

.315

MV

A

0.00-0.000.00

3

bsr 0

.315

MV

A

-0.00-0.000.00

3

jah 0.315 MVA(2)

0.00

0.00

0.00

3jah 0.315 MVA(2)

-0.0

0-0

.00

0.00

3

jah 0.315 MVA

0.00

0.00

0.00

3jah 0.315 MVA

-0.0

0-0

.00

0.00

3

yitt 0.315 MVA

0.00

0.00

0.00

3yitt 0.315 MVA

-0.0

00.

000.

00

3

alh

0.2

MV

A(1

) 0.000.000.00

3

alh

0.2

MV

A(1

)

-0.000.000.00

3

alw

0.16

MV

A(1

) 0.00-0.000.00

3

alw

0.16

MV

A(1

)

-0.00-0.000.00

3

alh

0.2

MV

A

0.000.000.00

3

alh

0.2

MV

A

-0.00-0.000.00

3

alw

0.16

MV

A

0.00-0.000.00

3

alw

0.16

MV

A

-0.00-0.000.00

3

burim

i 0.3

15 M

VA 0.00

-0.000.00

3

burim

i 0.3

15 M

VA

-0.000.000.00

3

mdrb-mudb

5.5822.996.17

mdrb-mudb

-5.52-30.416.17

azb5

0

36.3522.8128.55

11

azb5

0

-36.20-18.5528.55

11

azb33_load

36.2018.55

arph

125

62.0736.5028.68

12

arph

125

-61.90-31.7128.68

12

arph33_load

61.9031.71

bsr1

25B

65.26-2.5626.14

15

bsr1

25B

-65.106.7826.14

15

bsr1

25A

88.1453.1741.19

12

bsr1

25A

-87.90-45.0341.19

12

bsr33_loadA

87.9045.03

bsr33_loadB

65.1033.35

jah125

53.9

3-1

2.76

22.5

4

16jah125

-53.

9015

.76

22.5

4

16

wdk1

25

108.0725.1245.20

11

wdk1

25

-107.80-15.2945.20

11

wda

125

-85.801.2434.99

12

wda

125

86.005.2834.99

12

wda cap1(1)

0.00-20.17

4wda33_load

85.8039.09

mob33_load

91.4046.83

soh

125

84.5013.9133.69

15

soh

125

-84.30-7.3933.69

15

soh cap2(1)

0.00-20.19

4

jah 500 x 2

162.

6679

.58

18.1

0 15

jah 500 x 2

-162

.32

-67.

5518

.1015

dnk-

alh

2 x

2

39.5915.939.06

dnk-

alh

2 x

2

-39.46-21.699.06

alh33_load

39.3028.45

alw33_load

29.4015.87

msq33_load-A

84.0045.34

rsl-msf x2

81.2947.9717.38

rsl-msf x2

-81.19-48.8417.38

alh cap

0.00-5.00

1

wda cap1

0.00-20.17

4

gbr G

T10

-11

TX

5

gbr G

T10

-11

TX

5

gbr S

T4

TX

5 gbr S

T4

TX

5

jah-

sur

-162.78-8.1111.01

jah-

sur

163.

93-3

7.28

11.0

1

arph-Filaj

-573.33-161.8638.66

arph-Filaj

575.91183.1538.66

msq

500

x 2

295.9878.7730.63

15

msq

500

x 2

-295.54-53.3030.63

15

arph

500

x 2

276.6485.0228.67

14

arph

500

x 2

-276.21-62.3228.67

14

mis

-sis

-278.54-15.4117.94m

is-s

is

280.670.2917.94

ytt3

3_lo

ad

42.9

021

.98

qrm33_load

93.9048.11

jah3

3_lo

ad

53.9

024

.56

alh

40 x

2

39.4621.6959.01

7

alh

40 x

2

-39.30-18.4659.01

7

bur33_load

85.8064.35

bur 1

25x

2

85.9432.5138.17

9

bur 1

25x

2

-85.80-25.0838.17

9

msq-Qurum

199.2472.8841.44

msq-Qurum

-198.65-70.3741.44

alk-mdrb x2

-89.68-75.7423.09

alk-mdrb x2

90.5674.5223.09

bur cap2

0.00-19.63

4

bur cap1

0.00-19.63

4

gbr S

T5TX

5

gbr S

T5TX

5

gbr G

T1-

3 TX

5

gbr G

T1-

3 TX

5

G~gbr_GT10-11

51.8055.4880.75

G~gbr_GT1-3

48.0028.7162.14

G~gbr_ST5

29.5524.4594.12

G~gbr_ST4

37.0023.7667.65

mqb

-wda

25.58-11.305.45

mqb

-wda

-25.5710.235.45

Ax Sohar

6.003.07

seb33_load

103.8053.18

arph

-azb

36.41-9.098.22

arph

-azb

-36.35-22.818.22

maw

-seb

104.2363.9722.67

maw

-seb

-104.09-64.2622.67

seb

125

TX1

104.0964.2647.27

14

seb

125

TX1

-103.80-53.1847.27

14

gbr33_load

99.1050.77

gbr 1

25 x

2

51.4432.2524.23

13

gbr 1

25 x

2

-51.29-28.4524.23

13

wds-

dnk

x 2

ibr-dnk x 2

-64.19-25.6140.17

ibr-dnk x 2

65.3623.6740.17

alw-wds x 2

40.4720.1226.25

alw-wds x 2

-40.14-22.8126.25

Dsl Barka ph1

25.0012.81

Garamco (132 liwa)

30.0014.53

Dsl Barka ph 2

31.2015.98

Ax Barka ph1

6.003.07

mis

-blu

e

1.3116.324.62

mis

-blu

em

is-b

lue(

1)m

is-b

lue(

1)

-1.24-89.355.75

filaj

-Blu

e(1)

filaj

-Blu

e(1)

-51.46-45.564.37

OMIFCO

0.00 MW0.00 Mvar

1.00

SVS

Static Va..

-0.00-81.65

OCC

0.00 MW0.00 Mvar

1.00

soh Temp 0.16 MVA

-0.0

00.

000.

00

3

soh Temp 0.16 MVA0.

00-0

.00

0.00

3

Soh

ar T

em

28.2

014

.45

soh Temp 60MVA

28.2

617

.47

54.0

1

13soh Temp 60MVA-2

8.20

-14.

4554

.01

13

OMCO

11.50 ..7.13 Mvar

0.85

Line(1)

-28.

26-1

7.47

12.4

3Line(1)

28.2

617

.46

12.4

3

Line

(2)

Line

(2)

1.134.492.37

Line

27.1411.2410.99

Line

Sohar Refinery

20.10 ..12.46 ..0.85

qrm

-mut

tr..

qrm

-mut

tr..

-104.22-23.1321.08

liwa-

shns

45.49-5.888.74

liwa-

shns

-45.443.418.74

filaj-Blue

51.49-23.553.60

filaj-Blue

adm

0.3

15 M

VA

0.000.000.00

3

adm

0.3

15 M

VA

-0.000.000.00

3

G~brk ST1-2 Ph-2

206.49104.2257.00

nhkl 0.315 MVA

0.00

0.00

0.00

3

nhkl 0.315 MVA

-0.0

00.

000.

00

3

blue

0.3

15 M

VA

0.000.000.00

3

blue

0.3

15 M

VA

-0.000.000.00

3

shns

0.2

MV

A

0.00-0.000.00

3

shns

0.2

MV

A

-0.000.000.00

3

liwa

0.31

5 M

VA

0.000.000.00

3

liwa

0.31

5 M

VA

-0.00-0.000.00

3

sah

0.31

5 M

VA

0.00-0.000.00

3

sah

0.31

5 M

VA

-0.00-0.000.00

3

khb

0.31

5 M

VA

0.00-0.000.00

3

khb

0.31

5 M

VA

-0.00-0.000.00

3

mis

0.3

15 M

VA

0.000.000.00

3

mis

0.3

15 M

VA

-0.00-0.000.00

3

mld

0.2

MVA

0.00-0.000.00

3

mld

0.2

MVA

-0.00-0.000.00

3

rtq 0

.2 M

VA

0.00-0.000.00

3

rtq 0

.2 M

VA

-0.000.000.00

3

brk

0.2

MV

A

0.00-0.000.00

3

brk

0.2

MV

A

-0.000.000.00

3

mut

tr 0.

315

MV

A 0.00-0.000.00

3

mut

tr 0.

315

MV

A

-0.000.000.00

3

alf 0

.25

MV

A

0.000.000.00

3

alf 0

.25

MV

A

-0.00-0.000.00

3

wdk

0.2M

VA

0.000.000.00

3

wdk

0.2M

VA

-0.00-0.000.00

3

msf

0.3

15 M

VA

0.000.000.00

3

msf

0.3

15 M

VA

-0.00-0.000.00

3

ynkt 0.315 MVA

0.00

-0.0

00.

00

3ynkt 0.315 MVA

-0.0

00.

000.

00

3

ytt125

43.0

325

.04

20.6

5

10

ytt125

-42.

90-2

1.98

20.6

5

10

qryt

0.3

15 M

VA

0.000.000.00

3

qryt

0.3

15 M

VA

-0.00-0.000.00

3

sur 0

.315

MV

A

0.00-0.000.00

3

sur 0

.315

MV

A

-0.00-0.000.00

3

Ayj

ah12

5

40.0222.7218.49

15

Ayj

ah12

5

-40.00-20.4918.49

15

Ayja

h 0.

315

MV

A

0.00-0.000.00

3

Ayja

h 0.

315

MV

A

-0.000.000.00

3

alka

mi 0

.315

MVA

0.00-0.000.00

3

alka

mi 0

.315

MVA

-0.00-0.000.00

3

bbal

i 0.3

15 M

VA

0.000.000.00

3

bbal

i 0.3

15 M

VA

-0.000.000.00

3

mdr

b 0.

315

MV

A 0.00-0.000.00

3

mdr

b 0.

315

MV

A

-0.000.000.00

3

Raw

dh 0

.315

MVA

0.00-0.000.00

3

Raw

dh 0

.315

MVA

-0.000.000.00

3

mud

b0.3

15 M

VA 0.00

-0.000.00

3

mud

b0.3

15 M

VA

-0.000.000.00

3

sum

l 0.3

15 M

VA

0.000.000.00

3

sum

l 0.3

15 M

VA

-0.000.000.00

3

bhl 0

.315

MV

A

0.000.000.00

3

bhl 0

.315

MV

A

-0.000.000.00

3

izk

0.31

5 M

VA

(1) 0.00

-0.000.00

3

izk

0.31

5 M

VA

(1)

-0.00-0.000.00

3

nzw

Uni

v 0.

315

MV

A 0.000.000.00

3

nzw

Uni

v 0.

315

MV

A

-0.00-0.000.00

3

nzw

0.3

15 M

VA

0.000.000.00

3

nzw

0.3

15 M

VA

-0.00-0.000.00

3

dank

0.2

MV

A

0.000.000.00

3

dank

0.2

MV

A

-0.000.000.00

3

ibr

0.2

MV

A

0.000.000.00

3

ibr

0.2

MV

A

-0.00-0.000.00

3

wds

0.3

15 M

VA 0.00

0.000.00

3

wds

0.3

15 M

VA

-0.00-0.000.00

3

Ayjah Load

40.0020.49

sur-

ayja

h40.0720.298.87

sur-

ayja

h

-40.02-22.728.87

Zoom Load

70.0033.90

sur1

25

84.0945.1638.18

14

sur1

25

-84.00-38.2738.18

14

sur33_load

84.0038.27

alka

mil1

25

30.1217.4413.77

15

alka

mil1

25

-30.00-15.3713.77

15

bbal

i125

105.7562.0050.18

12

bbal

i125

-105.60-51.1450.18

12

alk-

bbal

i1

106.7961.2524.06

alk-

bbal

i1

-105.75-62.0024.06

mdr

b

84.1052.7440.72

12

mdr

b

-84.00-45.3440.72

12

mdrb33_load

84.0045.34

nzw

Un

70.1941.6433.61

10

nzw

Un

-70.00-35.8633.61

10

nzwUnvst33_load

70.0035.86

bhl33_load

88.4047.71

nzw

125

83.9350.5940.15

9

nzw

125

-83.70-42.8840.15

9

adm33_load

27.2013.93

nzw33_load

83.7042.88

adm

27.2915.4239.64

11

adm

-27.20-13.9339.64

11

ibr cap2(1)

-0.00-5.00

1

qryt

125

32.9219.1215.59

12

qryt

125

-32.80-16.8015.59

12

ynkt125

33.1

219

.23

15.9

0

11ynkt125

-33.

00-1

6.91

15.9

0

11

qrm

125

94.1357.0945.15

6

qrm

125

-93.90-48.1145.15

6

Mut

trah

104.2223.1343.97

8

Mut

trah

-104.00-14.0643.97

8

Mis

fah1

25

81.1948.8436.58

11

Mis

fah1

25

-81.00-41.5036.58

11

wdk cap2(1)

0.00-19.97

4

alf1

25

105.6224.0444.07

8

alf1

25

-105.40-13.9344.07

8

alf cap2(1)

4

alf33_load

105.4054.00

rtq12

5

101.7526.6442.85

12

rtq12

5

-101.50-17.6842.85

12

rtq33_load

101.5057.52

mld

125

150.1646.1363.46

8

mld

125

-149.80-28.5263.46

8

mld33_load

149.8068.25

mld cap1(1)

0.00-19.86

4

mob

125

91.6214.0637.12

13

mob

125

-91.40-6.7537.12

13

brk1

25

88.1917.4535.90

10

brk1

25

-88.00-10.6335.90

10

brk cap1

0.00-19.62

4

brk33_load

88.0049.87

Nkh 125

71.5

742

.53

33.4

5

8

Nkh 125

-71.

40-3

6.58

33.4

5

8

blue33_load

50.0025.62

blue

-50.00-25.6217.58

16

blue

50.1529.2417.58

16

mis

125

95.6658.4444.96

11

mis

125

-95.40-48.8744.96

11

mis33_load

95.4048.87

khb cap1(1)

0.00-20.13

4

khb1

25

89.1119.5536.31

13

khb1

25

-88.90-12.5036.31

13

mis

-khb

-12.23-18.914.33

mis

-khb

12.2611.574.33

sah1

25

98.2760.2645.23

12

sah1

25

-98.00-50.2145.23

12

sah33_load

98.0050.21

sip1

25

91.0255.5341.07

10si

p125

-90.80-46.5241.07

10

sip33A_load

90.8046.52

liwa33_load

91.9047.08

liwa1

25

92.1556.2142.87

12

liwa1

25

-91.90-47.0842.87

12

soh33_load

84.3047.78

sur 5

00 T

X x

2

162.788.1116.28

15

sur 5

00 T

X x

2

-162.442.7016.28

15

alw

315

x 2

187.8355.7230.48

15

alw

315

x 2

-187.53-39.1030.48

15

qrm

-mut

tr x2

104.5213.2820.75

qrm

-mut

tr x2

wds

63

x 2

40.1422.8137.16

11

wds

63

x 2

-40.00-20.4937.16

11

nahda-nzw

-33.21-21.9449.96

nahda-nzw

34.4021.3249.96

mnh-adm

27.349.346.07

mnh-adm

-27.29-15.426.07

mnh

-nzw

-228.33-83.4147.78

mnh

-nzw

229.8590.7247.78

bhl 1

25 T

X2

88.6456.3144.34

6

bhl 1

25 T

X2

-88.40-47.7144.34

6

nzw

-bhl

2

89.6057.7642.54

nzw

-bhl

2

-88.64-56.3142.54

Ax Manah

6.003.07

alk-sur x2

-31.72-20.417.24

alk-sur x2

31.8310.907.24

khb-sah x2

-101.37-31.1320.25

khb-sah x2

101.9129.0020.25

brk cap2

0.00-19.62

4

khb cap1

0.00-20.13

4

soh cap2

0.00-20.19

4

wdk cap2

0.00-19.97

4

shns cap2

0.00-19.86

4

shns cap1

0.00-19.86

4

alf cap2

4

mld cap1

0.00-19.86

4

sps

GT

1-3

TX

15

sps

GT

1-3

TX

15

sps

ST

1 TX

15

sps

ST

1 TX

15

brk

ST1

-3 P

2 TX

11

brk

ST1

-3 P

2 TX

11

brk

ST1

TX

11

brk

ST1

TX

11

brk

GT1

-3 P

2 TX

12

brk

GT1

-3 P

2 TX

12

brk

GT1

-2 T

X

12

brk

GT1

-2 T

X

12

wdj

GT

12-1

3 TX

15

wdj

GT

12-1

3 TX

15

wdj

GT

11 T

X

15

wdj

GT

11 T

X

15

wdj

GT9

-10

TX

10

wdj

GT9

-10

TX

10

wdj

GT

8 TX

15

wdj

GT

8 TX

15

wdj

GT

6-7

TX

9

wdj

GT

5 TX

15

wdj

GT

5 TX

15

wdj

GT

4 TX

15

wdj

GT

4 TX

15

wdj

GT

3 TX

9

mnh

GT

1-3

TX

3

mnh

GT

1-3

TX

3

mnh

GT

4-5

TX

12

mnh

GT

4-5

TX

12

G~brk GT1-3 Ph-2

367.80142.3875.12

G~sps ST1

207.9081.6181.22

G~brk GT1-2

225.8097.8077.38

G~wdj GT8

25.1022.5089.89

G~wdj GT5

22.3018.1982.79G~

wdj GT426.3020.8696.56G~

wdj GT3

G~wdj GT12-13

55.9041.0975.00

G~wdj GT11

26.8020.5290.01

G~wdj GT9-10

51.1046.5089.15

khb33_loadA

88.9052.75

msf33_load

81.0041.50

wds33_load

40.0020.49

alkamil33_load

30.0015.37

bbali33_load

105.6051.14

wdk33_load

107.8055.23

MS

Q-A

rph

-295.98-78.7720.07

MS

Q-A

rph

296.6976.8420.07

filaj

500

x 2

309.51126.4332.48

15

filaj

500

x 2

-309.04-98.2032.48

15

mis

500

x 2

279.78104.7629.33

15

mis

500

x 2

-279.35-80.8829.33

15

sipB

500

x 2

190.7879.6919.61

15

sipB

500

x 2

-190.39-65.8619.61

15

sipA

500

x 2

121.2776.7513.61

15

sipA

500

x 2

-120.92-67.2913.61

15

G~sps GT1-3

378.90159.4676.55

sis

500

x 2

402.11216.9744.40

10

sis

500

x 2

-401.50-172.7944.40

10

wda

-alf2

-105.62-24.0421.13

wda

-alf2

105.6723.9321.13

shns33_load

45.3033.98

shns

63

x 2

45.44-3.4136.37

14

shns

63

x 2

-45.305.7436.37

14

soh-

wdj

-1.01-6.162.33

soh-

wdj

1.014.412.33

G~wdj GT6-7

G~brk ST1

207.9087.2380.52

Ax Barka ph-2

6.003.07

rsl-m

aw

-283.18-109.9029.16

rsl-m

aw

284.72112.5029.16

rsl33_load

116.8072.39

ynkt

33_l

oad

33.0

016

.91

qryt33_load

32.8016.80

muttr33_load

104.0053.28

nhl3

3_lo

ad

71.4

036

.58

mld-rtq

102.1025.5720.55

mld-rtq

-101.75-26.6420.55

ytt-y

nkt1

x2

33.1

318

.65

7.62

ytt-y

nkt1

x2

-33.

12-1

9.23

7.62

dnk

63 x

2

24.609.6821.74

10

dnk

63 x

2

-24.50-8.4921.74

10

Filaj-Nakhal x2

71.7440.8716.04

Filaj-Nakhal x2

-71.

57-4

2.53

16.0

4PDO Network

34.40 ..21.32 ..0.85

UAE

172.20..106.72..0.85

G~mnh GT1-3

82.415.1871.03

nzw-ibr

-61.31-17.1812.51

nzw-ibr

61.904.9212.51

nzwUnvst -nzw x2

-148.86-13.2229.52

nzwUnvst -nzw x2

149.3214.1829.52

izk-nzwUnvst x2

-78.5227.2716.52

izk-nzwUnvst x2

78.67-28.4216.52

Ax Rusail

7.003.59

Ax Alkamil

6.003.07

izk-

mud

b

80.538.2316.17

izk-

mud

b

-79.99-12.8316.17

Rawdh 33_load

15.007.68

izk33_load

57.5029.46

Raw

dh 6

3MV

Ax

2

15.018.5114.36

10

Raw

dh 6

3MV

Ax

2

-15.00-7.6814.36

10

izk

125

x 2

57.6633.7127.49

11

izk

125

x 2

-57.50-29.4627.49

11

mudb33_load

70.3034.05

mud

b 12

5 x

2

70.4939.7433.67

9

mud

b 12

5 x

2

-70.30-34.0533.67

9

mud

b-R

awdh

x2

-15.01-8.513.45

mud

b-R

awdh

x2

15.023.493.45

sis-sah

-200.18-89.2541.25

sis-sah

201.8795.9441.25

ibr cap2

-0.00-5.00

1

dnk cap2

0.00-4.94

1

dnk cap1

0.00-4.94

1

rsl G

T8 T

X

5

rsl G

T8 T

X

5

rsl G

T7

TX

5

rsl G

T7

TX

5

rsl G

T4-6

TX

5

rsl G

T4-6

TX

5

rsl G

T1-3

TX

5

rsl G

T1-3

TX

5

G~mnh GT4-5

181.50127.1967.16

G~rsl_GT4-6

237.90186.5095.28

G~rsl_GT8

89.7046.8886.50

G~rsl_GT7

90.6042.1066.60

dnk33_load

24.5018.37

ibr33_load

117.6060.25

filaj

-brk

ps3-

4

469.11146.8831.17

filaj

-brk

ps3-

4

-468.45-143.0231.17

filaj

-brk

ps 1

-2

-468.45-143.0231.17

filaj

-brk

ps 1

-2

469.11146.8831.17

ibr

125

TX2

117.9362.9653.75

11

ibr

125

TX2

-117.60-50.2453.75

11

sps-

sib

x 2

190.7950.3012.85

sps-

sib

x 2

-190.78-79.6912.85

sps-

sia

x 2

241.30105.5617.18

sps-

sia

x 2

-241.27-134.8617.18

Dsl Sohar

31.0015.88

sip220_load

120.0058.12

sip132_load

50.0024.22

Ax_wdj

7.003.59

wdj-alw

40.0872.7725.92

wdj-alw

-39.44-75.2125.92

mld-mis

195.9241.3538.58

mld-mis

-195.33-39.0738.58

filaj

-mld

-56.93-32.6312.71

filaj

-mld

57.1528.1612.71

brk-filaj

180.1429.1717.47

brk-filaj

-179.96-30.4717.47

rsl-mob

mob-brk

-91.62-14.0617.80

mob-brk

91.7713.0217.80

rsl-s

umi x

2

-153.53-116.6636.58

rsl-s

umi x

2

155.07121.6536.58

suml33_load

93.0042.37

sum

125

x 2

93.2551.7242.23

13

sum

125

x 2

-93.00-42.3742.23

13

rsl 7

5 x

4

117.2084.6945.88

13

rsl 7

5 x

4

-116.80-72.3945.88

13

alw220-uae220

-171.70-118.9313.43

alw220-uae220

172.20106.7213.43

G~alk GT1-3

266.70218.2594.74

alka

mil

GT

1-3

TX

-265.29-167.1896.19

11

alka

mil

GT

1-3

TX

266.70218.2596.19

11

G~rsl_GT1-3

228.60162.2568.21

sum

i-izk

60.2864.9518.01

sum

i-izk

-59.66-69.2118.01

DIg

SILE

NT


Page | 139




OETC Planning Dpt.




(Master Model)


New Ghbr

Ghubrah P/S

Bahla

Wadi Al Kabir

Wadi Adai

Bousher

Khoud

Sohar Refinery

AlMawalih

Seeb Main

Sohar Grid (Old)

GhalaAzaiba Coast

Rusail P/S

Multaqa

Free Zone

New BuraimiAl Buraimi

Dreez

Amerat

Jahloot

Al-Misfah

MSQYitti

Al Hail

Nizwa

Liwa

Ibri

Al Wasit ( Mhadah)

New Sohar IPPSohar Aluminum

Blue

OMIFCO

OCC

OMCO

Wadi Jizzi P/S

Shinas

Al Kamil

BB Ali

Mudarb

Mhdhabi

Izki

Nizwa University

PDO

Wadi Sa'a

Dank


Al Khabourah

Saham

Rustaq

Muladha (Old)


Nakhal

Mobalah

Air Port High

Yankit


Sohar IWPP

AES Barka P/S

Manah P/S

Al Kamil P/S

AlFalaj

Qurum

Sur

Sumail

Muttrah

Filaj

Rawdah

Quriat

Barka Main

Adam



gbr33

32.770.99

-125.76

New Ghb 132kV Bus

133.741.0128.35

qrm 132

130.940.9919.73

muttr132130.420.9919.21

Nhl

3332

.98

1.00

-134

.87

0.415 busbar..0.421.00

-102.96

brk33-B

33.151.00

-132.96

brk33-A

33.061.00

-133.78

msq33B

32.851.00

-133.14

0.415 busbar..

0.411.00

-103.14

0.415 busbar..

0.411.00

-115.67

maw33B

32.861.00

-145.67

0.415 busbar..

0.410.99

-116.52

0.415 busbar..

0.441.05

-102.93

Ghala3333.071.00

-132.93

Ghala 132125.990.9520.22

mis

fah

220

219.

081.

0024

.07

0.415 busbar..0.411.0064.57

Khoud 33

32.991.0034.57

Khoud 132130.810.997.02

0.415 busbar..0.410.9977.79

Multaqa33

32.760.9947.79

Multaqa132132.991.0121.40

soh3333.041.0048.07

0.415 busbar..0.421.0078.07

Free Zone132 135.261.0229.06

0.415 busbar..0.410.9986.00

Free Zone 3332.780.9956.00

0.415 busbar..0.411.00

-103.50

New bur33

32.871.00

-133.50

New bur132136.581.0319.68

0.415 busbar..0.410.9910.18

Dreez 33

32.540.9940.18

Dreez132

126.960.9612.44

0.415 busbar..0.421.00

-104.29

Amerat 33

33.041.00

-134.29

Amerat132

130.260.9919.70

msq220

207.630.9422.53

jah2

2021

6.47

0.98

18.8

9

jah1

32

127.

780.

9716

.52

ytt3

332

.76

0.99

-137

.11

wda33

33.071.00

-133.31

0.415 busbar..0.410.9915.99

ibri220

214.290.9717.09

wad

i Ada

i 220

218.

840.

9922

.73

New Barka IPP221.171.0128.10

Sohar IPP 220

224.771.0233.75

azb1110.890.99

-14.01

wdk132

130.800.9919.81

0.415 busbar..0.410.9986.46

0.415 busbar..0.411.00

-103.45

0.415 busbar..0.410.9976.31

mis3332.810.9946.31

0.415 busbar..0.421.00

-103.78

0.415 busbar..0.411.00

-104.88

mob3332.991.00

-134.88

0.415 busbar..0.421.00

-104.13

qrm33

33.111.00

-134.13

muttr33

33.251.01

-134.90

0.415 busbar..0.410.99

-116.17

0.415 busbar..0.421.00

-103.31

0.415 busbar..0.410.99

-102.18

arph33

32.600.99

-132.18

0.415 busbar..0.410.99

-102.77

msq33A

32.740.99

-132.77

0.415 busbar..0.431.04

-89.37

bsr33A

32.830.99

-119.37bsr33B32.961.00

-118.53

jah3

3

32.9

21.

00-1

35.9

20.415 busbar..0.411.008.37

alh3332.981.0038.37

0.415 busbar..0.431.04

-119.12

bhl3332.810.99

-149.12

nzw33

32.550.99

-146.86

0.415 busbar..0.411.008.37

0.415 busbar..0.411.0079.58

0.415 busbar0.411.00

-104.74

bhl132

130.250.994.96

rtq 33

33.071.00

-135.69

sip33A

32.760.9956.46

alh132

127.930.9710.37

bur33

32.881.00

-134.74

filaj220

223.271.0125.17

sipA132

136.231.0330.24

soh132

133.701.0121.76

brkps220225.781.0326.03

maw33 A

32.800.99

-146.52

gbr132133.631.0134.22


218.530.9925.04

bur132

135.881.0319.19

nzwUnvst 132

130.220.995.81

azb 132

126.390.9620.54

msq132

132.101.0020.65

mis220

221.131.0124.06

sps220

230.941.0531.66

sis220

224.101.0229.07

sipB132

135.771.0329.12

sis132

133.041.0124.36

ibr132

128.030.9713.07

arph132

126.660.9620.59

bsr132

133.391.0134.19

maw132 131.280.997.28

rsl132132.781.018.01

0.41

5 bu

sbar

..0.42

1.00

77.4

2

soh3

3(..

33.0

51.

0047

.42

0.415 busbar..0.411.00

-114.65

adm33

32.941.00

-144.65

0.41

5 bu

sbar

..0.

411.

00-1

04.8

7

0.415 busbar..0.410.9980.07

blue33

32.760.9950.07

0.415 busbar..0.410.9976.85

0.415 busbar..0.410.99

-104.25

liwa33

32.650.99

-134.25

0.415 busbar..0.410.99

-102.09

0.415 busbar..0.410.99

-103.81

mld3332.810.99

-133.81

0.415 busbar..0.421.00

-105.69

0.415 busbar..0.421.01

-104.90

0.415 busbar..0.410.99

-116.17

seb33

32.730.99

-146.17

0.415 busbar..0.410.99

-104.69

alf33

32.730.99

-134.69

0.415 busbar..0.410.9975.34

wdk33

32.800.99

-134.66

0.415 busbar..0.411.00

-115.97

msf33

32.911.00

-145.97

0.415 busbar..0.431.04

-88.53

0.41

5 bu

sbar

..0.

411.

00-1

05.9

20.

415

busb

ar..

0.41

1.00

-105

.92

0.41

5 bu

sbar

..0.

410.

99-1

07.1

10.

415

busb

ar..

0.41

1.00

-106

.65

ynkt

33

32.9

01.

00-1

36.6

5

0.415 busbar..0.410.99

-105.59

qryt33

32.630.99

-135.59

0.415 busbar..

0.411.00

-114.87

0.415 busbar..

0.421.00

-113.19

sur132 132.001.008.78

0.415 busbar..0.411.00

-114.77

alkamil3332.981.00

-144.77

0.415 busbar..0.411.00

-116.76

bbali33

32.941.00

-146.76

0.415 busbar..0.411.00

-118.87

mdrb33

32.871.00

-148.87

0.415 busbar..0.410.9962.24

Rawdh33

32.810.9932.24

0.415 busbar..0.411.00

-119.48

mudb33

32.841.00

-149.48

0.415 busbar..0.411.0079.58

alw33

32.931.0049.58

suml33

32.750.99

-147.89

0.415 busbar..0.410.99

-117.89

0.415 busbar..0.431.04

-117.33

izk33

32.861.00

-147.33

0.415 busbar..0.431.03

-117.39

nzwUnvst3332.590.99

-147.39

0.415 busbar..0.431.03

-116.86

0.415 busbar..0.410.999.79

0.415 busbar..0.410.99

-171.02

ibr33

32.740.99

-141.02

dnk33

32.730.9939.79

0.415 busbar..0.411.0077.83

wds33

32.871.0047.83

Ayjah3333.061.00

-143.19

Ayjah132131.401.008.44

alf132131.110.9920.10

sah33

32.630.99

-132.09

adm132

134.891.027.53

mnh132

135.821.038.12

17.0

01.

00-1

11.6

9

blue220

222.851.0124.23

khb33

32.931.00

-133.45

sur33

32.951.00

-144.87

shns3332.740.9946.85

liwa 132134.421.0219.62

shns132

134.291.0219.18

sur220218.911.0011.68

khb132

129.280.9820.34

bbali132

129.710.986.19

wdj132

137.321.0421.65

rsl3332.861.00

-145.93

wds132

136.291.0320.09

dnk132

127.240.9611.02

alw132

138.831.0521.02

nahda132 141.321.079.36

Nhl

132

129.

250.

9819

.29

qryt132126.940.9616.01

ynkt

132

124.

940.

9514

.88

ytt1

3212

5.09

0.95

14.9

6

nzw132132.411.006.95

Rawdh132

126.070.963.39

izk132129.060.985.19

mudb132

126.450.963.68

seb132

130.770.997.01

alkamil132

132.831.017.95

sah132

129.990.9821.92

15.2

51.

02-1

37.0

9

11.4

31.

04-1

37.8

4

arph220214.270.9723.35

sipB220230.871.0531.62

sipA220230.841.0531.62

Misfah132

132.041.007.63

rtq132

128.220.9718.41

mdrb132127.730.974.88

mis132

130.210.9920.55

filaj132

130.050.9920.25

mld132

129.520.9819.64

mob132128.960.9819.04

brk132

129.470.9819.72

wda132 131.260.9920.26

suml132

129.850.986.04

alw220 (1)

223.491.0226.72

gbr33_load

103.5053.02

gbr 1

25 x

2

-103.50-53.0248.18

12

gbr 1

25 x

2

103.7964.2448.18

12

Muttrah cap1

0.00-20.31

4

Muttrah cap2

0.00-20.31

4

Nhk

al c

ap 1

0.00

-19.

98

4

Nhk

al c

ap 2

0.00

-19.

98

4

MIS cap2

0.00-19.77

4

MIS cap1

0.00-19.77

4

Bahla cap1

-0.00-19.77

4

Bahla cap2

-0.00-19.77

4

nzw

-bhl

2

100.4823.4339.74

nzw

-bhl

2

-99.64-22.7139.74

Rstq-cap2

0.00-20.08

4

Rstq-cap1

0.00-20.08

4

brk

0.2

MV

A-B

0.000.000.00

3

brk

0.2

MV

A-B

-0.000.000.00

3

brk33_load-B

70.0035.86

brk1

25-B

70.1741.4633.25

7

brk1

25-B

-70.00-35.8633.25

7

brk

0.2

MV

A-A

0.00-0.000.00

3

brk

0.2

MV

A-A

-0.00-0.000.00

3

brk33_load-A

89.3052.99

msq

0.2

MV

A-B

-0.000.000.00

3

msq

0.2

MV

A-B

0.00-0.000.00

3

msq

125-

B

-98.60-50.5146.33

8

msq

125-

B

98.8460.4746.33

8

msq33_load-B

98.6050.51

msq

0.2

MV

A-A

-0.00-0.000.00

3

msq

0.2

MV

A-A

0.000.000.00

3

msq

125-

A

-85.20-6.6034.53

10

msq

125-

A

85.3813.0134.53

10

Ser

ies

Re.

.

104.883.51

103.65

Ser

ies

Re.

.

-104.777.24

103.65

Bre

aker

/Sw

itch-

1B

reak

er/S

witc

h-1

Bre

aker

/Sw

itch-

2B

reak

er/S

witc

h-2

Ser

ies

Rea

ctor

2

444.8154.3488.46

Ser

ies

Rea

ctor

2

-444.734.3488.46

G~Ghubr New Gen

474.70192.8781.98

New

IWP

P g

br G

T TX

3

New

IWP

P g

br G

T TX

3

MSQ cap2

0.00-19.69

4

MSQ cap1

0.00-19.69

4

Moballah cap2

-0.00-19.99

4

Moballah cap1

-0.00-19.99

4

Mawallah cap2

0.00-19.76

4

Mawallah cap1

0.00-19.76

4

Gho

ubra

h-M

SQ

444.73-4.3442.50

Gho

ubra

h-M

SQ

-442.64-26.2042.50

Dsl New Gh

25.0012.81

Ax New Gh

5.002.56

MS

Q-Q

uram

209.3977.9542.92

MS

Q-Q

uram

-208.78-75.2942.92

brk1

25-A

89.4919.7737.39

8

brk1

25-A

-89.30-12.8437.39

8

maw

0.3

15 M

VA

B 0.000.000.00

3

maw

0.3

15 M

VA

B

-0.00-0.000.00

3

maw

125

B

-70.30-27.7831.37

11

maw

125

B

70.4833.3931.37

11

maw33_load B

70.3027.78

maw

0.3

15 M

VA

A 0.000.000.00

3

maw

0.3

15 M

VA

A

-0.00-0.000.00

3

maw33_load A

87.4034.54

maw

125

A

-87.404.9735.24

13

maw

125

A

87.612.0635.24

13

Kho

ud 0

.315

MV

A

0.000.000.00

3

Kho

ud 0

.315

MV

A

-0.00-0.000.00

3

Kho

ud 1

25

60.1735.4028.18

11

Kho

ud 1

25

-60.00-30.7428.18

11

Khoud 33_load

60.0030.74

gbr-bsr-160.42-55.4232.22 gbr-bsr

160.6848.2932.22

Ghala 33_load

79.8040.88

Gha

la 0

.315

MVA 0.00

-0.000.00

3

Gha

la 0

.315

MVA

-0.000.000.00

3

Gha

la 1

25 T

x

80.0147.9839.09

7

Gha

la 1

25 T

x

-79.80-40.8839.09

7

Airp

ort-G

hala

(1)

80.1347.4818.75

Airp

ort-G

hala

(1)

-80.01-47.9818.75

Airp

ort-B

oush

er

Wad

i Ada

i-Wad

i Kab

air

109.8229.5322.00

Wad

i Ada

i-Wad

i Kab

air

-109.67-29.8122.00

Mawallah-Khoud

60.2334.4413.51

Mawallah-Khoud

-60.17-35.4013.51

New Barka-Misfah

-606

.92

-17.

6340

.00

New Barka-Misfah

610.3947.8040.00

Sohar-Multaqa

88.4753.2319.69

Sohar-Multaqa

-88.34-53.8019.69

Mul

taqa

0.3

15 M

VA 0.00-0.000.00

3

Mul

taqa

0.3

15 M

VA

-0.000.000.00

3

Mul

taqa

125

88.3453.8041.06

12

Mul

taqa

125

-88.10-45.1341.06

12

Multaqa33_load

88.1045.13

sis-

alw

x2

332.9989.7522.63

sis-

alw

x2

-330.93-88.8522.63

sip

B-F

ree

Zone

74.6411.2316.23

sip

B-F

ree

Zone

-74.38-44.5216.23

Free

Zon

e TX

74.3844.5233.84

10

Free

Zon

e TX

-74.20-38.0133.84

10

Free

Zon

e 0.

315

MVA

0.000.000.00

3

Free

Zon

e 0.

315

MVA

-0.000.000.00

3

Free Zone 33_load

74.2038.01

sps-B vale

140.0067.81

New Burimi -Burimi

93.0037.3918.72

New Burimi -Burimi

-92.85-38.3218.72

Wasit- New Burimi

169.5485.2234.86

Wasit- New Burimi

-168.73-82.9334.86

New

bur

imi 0

.315

MV

A

0.00-0.000.00

3

New

bur

imi 0

.315

MV

A

-0.000.000.00

3

New bur33_load

75.6038.73

New

bur

125

75.7345.5434.81

12

New

bur

125

-75.60-38.7334.81

12

Dre

ez 0

.2 M

VA

0.00-0.000.00

3

Dre

ez 0

.2 M

VA

-0.00-0.000.00

3

Dreez 33_load

46.2023.67

Dre

ez 6

3 TX

46.2826.5144.15

9

Dre

ez 6

3 TX

-46.20-23.6744.15

9

Ibri-

Dre

ez 1

32

-46.28-26.5110.64

Ibri-

Dre

ez 1

32

46.3923.3510.64

Am

ert-J

ahlo

ot

Am

erat

0.3

15 M

VA 0.000.000.00

3

Am

erat

0.3

15 M

VA

-0.00-0.000.00

3

Amerat 33_load

96.3049.34

Am

erat

132

TX

96.5659.5846.05

10

Am

erat

132

TX

-96.30-49.3446.05

10

MS

Q-A

mer

at

96.9358.8622.06

MS

Q-A

mer

at

-96.56-59.5822.06

Jahl

oot c

ap 2

0.00

-19.

90

4

Jahl

oot c

ap 1

0.00

-19.

90

4

Bousher cap2

0.00-19.95

4

Bousher cap1

0.00-19.95

4

MS

Q-W

AD

i Ada

i

111.6576.9526.12

MS

Q-W

AD

i Ada

i

-111.46-76.8526.12

Transport

20.009.69

nahd

a-nz

w

-38.68-25.0356.27

nahd

a-nz

w

40.2024.9156.27

Al wasit- Ibri

-300.68-20.7520.30

Al wasit- Ibri

304.0915.1420.30

ibri

220

kV

300.6820.7530.99

15

ibri

220

kV

-300.265.0730.99

15

Misfah-Wadi Adai

193.

66-1

0.61

12.7

8 Misfah-Wadi Adai

-193

.29

1.94

12.7

8

220 kV wadi adai

193.

29-1

.94

19.4

6

15220 kV wadi adai

-192.9415.2019.46

15

New

Bar

ka T

x

-616.39-50.8776.86

11

New

Bar

ka T

x

617.20127.4476.86

11

Ax New Barka(1)

6.003.07

Ax New Sohar(1)

6.003.07

G~

New Barka IWPP

617.20127.4477.57

sis-

sps

x2(3

$4)

sis-

sps

x2(3

$4)

-606.3443.9039.20

sis-

sps

x2(3

$4)

610.41-37.6539.27

sis-

sps

x2(3

$4)

New

IPP

TX

-616.4134.5875.42

11New

IPP

TX

617.2039.4475.42

11

G~

New Sohar IWPP(1)

617.2039.4476.12

Sohar Al

267.80..165.97..0.85

mis

fah-

jah

413.

2728

.23

27.3

7

mis

fah-

jah

-410

.26

-14.

3127

.37

Azi

ba 0

.5M

VA

0.000.000.00

3

Azi

ba 0

.5M

VA

-0.00-0.000.00

3

filaj

-Blu

e(1)

filaj

-Blu

e(1)

-144.15-62.0510.16

sis-

sps

x2(1

)si

s-sp

s x2

(1)

-363.07-198.7326.66

sis-

sps

x2

364.92175.9126.16

sis-

sps

x2

qrm

-mut

tr..

qrm

-mut

tr..

-106.33-22.8821.12

alh cap(1)

0.00-14.98

3

filaj-Blue

144.35-2.529.35

filaj-Blue

sipA

0.3

15 M

VA

0.00-0.000.00

3

sipA

0.3

15 M

VA

-0.000.000.00

3

soh

0.31

5 M

VA

0.00-0.000.00

3

soh

0.31

5 M

VA

-0.000.000.00

3

khb

0.31

5 M

VA

0.00-0.000.00

3

khb

0.31

5 M

VA

-0.000.000.00

3

mis

0.3

15 M

VA

0.00-0.000.00

3

mis

0.3

15 M

VA

-0.000.000.00

3

mob

0.3

15 M

VA

0.000.000.00

3

mob

0.3

15 M

VA

-0.00-0.000.00

3

qrm

0.3

15 M

VA

0.00-0.000.00

3

qrm

0.3

15 M

VA

-0.00-0.000.00

3

seb

0.12

7 M

VA

0.00-0.000.00

3

seb

0.12

7 M

VA

-0.00-0.000.00

3

wda

0.3

15 M

VA

0.000.000.00

3

wda

0.3

15 M

VA

-0.00-0.000.00

3

arph

0.3

15 M

VA

0.000.000.00

3

arph

0.3

15 M

VA

-0.00-0.000.00

3

bsr 0

.315

MV

A(2

) 0.00-0.000.00

3

bsr 0

.315

MV

A(2

)

-0.000.000.00

3

alh

0.2

MV

A(1

) 0.00-0.000.00

3

alh

0.2

MV

A(1

)

-0.000.000.00

3

bhl 0

.315

MV

A

0.00-0.000.00

3

bhl 0

.315

MV

A

-0.000.000.00

3

nzw

0.3

15 M

VA

0.00-0.000.00

3

nzw

0.3

15 M

VA

-0.000.000.00

3

alh

0.2

MV

A

0.000.000.00

3

alh

0.2

MV

A

-0.00-0.000.00

3

alw

0.16

MV

A

0.000.000.00

3

alw

0.16

MV

A

-0.00-0.000.00

3

burim

i 0.3

15 M

VA 0.00

-0.000.00

3

burim

i 0.3

15 M

VA

-0.000.000.00

3

mdrb-mudb

41.829.568.96

mdrb-mudb

-41.67-16.288.96

bhl33_load

99.4053.65

nzw

125

94.4657.8644.16

12

nzw

125

-94.20-48.2644.16

12

nzw33_load

94.2048.26

azb5

0

39.1624.9032.31

8

azb5

0

-39.00-19.9832.31

8

azb33_load

39.0019.98

arph

125

67.9840.3032.94

9

arph

125

-67.80-34.7332.94

9

arph33_load

67.8034.73

bsr1

25B

67.86-0.7627.19

16

bsr1

25B

-67.705.2227.19

16

bsr1

25A

92.5556.1842.92

13

bsr1

25A

-92.30-47.2942.92

13

bsr33_loadA

92.3047.29

bsr33_loadB

67.7034.68

jah125

58.0

4-1

0.08

24.3

4

15

jah125

-58.

0013

.38

24.3

4

15

wdk1

25

109.6729.8145.87

12

wdk1

25

-109.40-19.5345.87

12

wda

125

-87.100.4835.20

13

wda

125

87.306.2235.20

13

wda cap1(1)

-0.00-20.08

4

wda33_load

87.1039.68

mob33_load

96.0049.18

brk cap2(1)

0.00-20.07

4

mis33_load

103.1052.82

sip1

2592.4256.5942.00

10

sip1

25

-92.20-47.2442.00

10

sip33A_load

92.2047.24

soh33_load

88.6050.21

soh cap2(1)

0.00-20.05

4

jah 500 x 2

179.

6567

.46

19.5

3 15

jah 500 x 2

-179

.31

-54.

4019

.5315

dnk-

alh

2 x

2

22.65-18.665.84

dnk-

alh

2 x

2

-22.6012.265.84

alh33_load

22.5016.29

qrm

-mut

tr x2

106.6312.6620.80

qrm

-mut

tr x2

mnh

-nzw

-225.82-205.8938.96

mnh

-nzw

227.33211.5338.96

bhl 1

25 T

X2

99.6422.7141.42

12

bhl 1

25 T

X2

-99.40-14.1041.42

12

msq33_load-A(1)

85.2045.99

rsl-m

sf x

2

91.0654.8320.41

rsl-m

sf x

2

-90.92-55.3220.41

khb-sah x2

-82.86-5.1716.26

khb-sah x2

83.212.1416.26

brk cap2

0.00-20.07

4

alh cap

0.00-14.98

3

soh cap2

0.00-20.05

4

wda cap1

-0.00-20.08

4

gbr G

T12

-13

TX

3

gbr G

T12

-13

TX

3

gbr G

T10

-11

TX

3

gbr G

T10

-11

TX

3

G~gbr_GT12-13

182.4094.6385.98

G~gbr_GT10-11

52.00-15.1857.63

G~

gbr_ST5-6

58.709.4972.96

jah-

sur

-228.2524.4615.78

jah-

sur

230.

61-5

3.15

15.7

8

arph-Filaj

-368.65-399.1436.60

arph-Filaj

370.94417.4136.60

msq

500

x 2

160.02287.2034.89

5

msq

500

x 2

-159.56-261.0434.89

5

mis

-sis

-252.38-26.9316.57m

is-s

is

254.188.8116.57

wdj

-liw

a x

2

177.0675.0535.76

wdj

-liw

a x

2

-175.87-71.3635.76

wda

-alf2

-107.23-26.0321.31

wda

-alf2

107.2825.9121.31

Dsl Ghoubrah

20.0010.25

Ax Ghoubrah

7.003.59

rsl-m

aw

-297.52-116.8332.09

rsl-m

aw

299.38120.4832.09

qrm33_load

101.9052.20

alh

40 x

2

22.60-12.2633.16

12

alh

40 x

2

-22.5013.6833.16

12

bur33_load

92.7069.52

bur 1

25x

2

92.8538.3239.77

12

bur 1

25x

2

-92.70-29.8139.77

12

jah-ytt x2

84.3

846

.52

19.6

0 jah-ytt x2

-83.

88-4

8.32

19.6

0

jah-qryt x2

-36.82-21.388.49

jah-qryt x2

36.8

917

.97

8.49

nzw-ibr

-98.4746.5622.22

nzw-ibr

100.33-50.4922.22

nzwUnvst -nzw x2

-167.26-100.2437.92

nzwUnvst -nzw x2

168.03103.0737.92

bur cap2

0.00-19.86

4

bur cap1

0.00-19.86

4

rsl G

T4-6

TX

3

rsl G

T4-6

TX

3

MS

Q-A

rph

-160.02-287.2022.86

MS

Q-A

rph

160.93288.7222.86

sis-soh

196.92-49.7238.66

sis-soh-195.5354.9138.66

sip132_load

50.0024.22

arph

-azb

39.24-4.229.30

arph

-azb

-39.16-24.909.30

maw

-seb

79.2046.9517.87

maw

-seb

-79.11-47.4817.87

rsl-mob

wds-

dnk

x 2

ibr-dnk x 2

-49.157.4129.44

ibr-dnk x 2

49.78-10.6729.44

alw-wds x 2

50.6626.2231.43

alw-wds x 2

-50.17-28.8631.43

G~wdj GT11

26.9022.5093.52

Garamco (132 liwa)

30.0014.53

Dsl Barka phase1

25.0012.81

Dsl Barka ph2

31.2015.98

mis

-blu

e

23.89-12.673.11

mis

-blu

em

is-b

lue(

1)m

is-b

lue(

1)

-23.85-58.224.11

OMIFCO

0.00 MW0.00 Mvar

1.00

SVS

Static Va..

-0.00-128.58

OCC

0.00 MW0.00 Mvar

1.00

OMCO

13.40 ..8.30 Mvar

0.85

soh Temp 0.16 MVA

-0.0

00.

000.

00

3

soh Temp 0.16 MVA0.

00-0

.00

0.00

3

soh Temp 60MVA-2

8.70

-14.

7055

.69

12soh Temp 60MVA

28.7

617

.84

55.6

9

12

soh

Tem

load

28.7

014

.70

Line(1)

-28.

76-1

7.84

12.8

2Line(1)

28.7

617

.83

12.8

2

Line

(2)

Line

(2)

5.6171.8027.21

Line

23.44-53.8222.24

Line

G~brk ST1-2 Ph-2

172.34183.4762.04

Sohar Refinery

23.40 ..14.50 ..0.85

liwa-

shns

49.10-2.589.26

liwa-

shns

-49.050.089.26

adm

0.3

15 M

VA

0.00-0.000.00

3

adm

0.3

15 M

VA

-0.000.000.00

3

G~brk GT1-3 Ph-2

368.70245.0084.32

nhkl 0.315 MVA

0.00

0.00

0.00

3

nhkl 0.315 MVA

-0.0

0-0

.00

0.00

3

blue

0.3

15 M

VA

0.00-0.000.00

3

blue

0.3

15 M

VA

-0.00-0.000.00

3

shns

0.2

MV

A

0.000.000.00

3

shns

0.2

MV

A

-0.00-0.000.00

3

liwa

0.31

5 M

VA

0.00-0.000.00

3

liwa

0.31

5 M

VA

-0.000.000.00

3

sah

0.31

5 M

VA

0.00-0.000.00

3

sah

0.31

5 M

VA

-0.000.000.00

3

mld

0.2

MVA

0.000.000.00

3

mld

0.2

MVA

-0.00-0.000.00

3

rtq 0

.2 M

VA

0.000.000.00

3

rtq 0

.2 M

VA

-0.00-0.000.00

3

mut

tr 0.

315

MV

A 0.00-0.000.00

3

mut

tr 0.

315

MV

A

-0.00-0.000.00

3

seb

0.15

MV

A

0.00-0.000.00

3

seb

0.15

MV

A

-0.00-0.000.00

3

alf 0

.25

MV

A

0.00-0.000.00

3

alf 0

.25

MV

A

-0.00-0.000.00

3

wdk

0.2M

VA

0.000.000.00

3

wdk

0.2M

VA

-0.00-0.000.00

3

msf

0.3

15 M

VA

0.00-0.000.00

3

msf

0.3

15 M

VA

-0.000.000.00

3

bsr 0

.315

MV

A

0.00-0.000.00

3

bsr 0

.315

MV

A

-0.000.000.00

3

jah 0.315 MVA(2)

0.00

-0.0

00.

00

3jah 0.315 MVA(2)

-0.0

00.

000.

00

3

jah 0.315 MVA

0.00

-0.0

00.

00

3jah 0.315 MVA

-0.0

00.

000.

00

3

yitt 0.315 MVA

0.00

-0.0

00.

00

3yitt 0.315 MVA

-0.0

0-0

.00

0.00

3

ynkt 0.315 MVA

0.00

-0.0

00.

00

3ynkt 0.315 MVA

-0.0

00.

000.

00

3

qryt

0.3

15 M

VA

0.00-0.000.00

3

qryt

0.3

15 M

VA

-0.00-0.000.00

3

sur 0

.315

MV

A

0.00-0.000.00

3

sur 0

.315

MV

A

-0.00-0.000.00

3

Ayj

ah12

5

40.4222.9518.68

15

Ayj

ah12

5

-40.40-20.7018.68

15

Ayja

h 0.

315

MV

A

0.00-0.000.00

3

Ayja

h 0.

315

MV

A

-0.000.000.00

3

alka

mi 0

.315

MVA

0.000.000.00

3

alka

mi 0

.315

MVA

-0.00-0.000.00

3

bbal

i 0.3

15 M

VA

0.00-0.000.00

3

bbal

i 0.3

15 M

VA

-0.00-0.000.00

3

mdr

b 0.

315

MV

A 0.00-0.000.00

3

mdr

b 0.

315

MV

A

-0.00-0.000.00

3

Raw

dh 0

.315

MVA

0.000.000.00

3

Raw

dh 0

.315

MVA

-0.000.000.00

3

mud

b0.3

15 M

VA 0.00

0.000.00

3

mud

b0.3

15 M

VA

-0.00-0.000.00

3

alw

0.16

MV

A(1

) 0.00-0.000.00

3

alw

0.16

MV

A(1

)

-0.00-0.000.00

3

sum

l 0.3

15 M

VA

0.000.000.00

3

sum

l 0.3

15 M

VA

-0.00-0.000.00

3

izk

0.31

5 M

VA

(1) 0.00

-0.000.00

3

izk

0.31

5 M

VA

(1)

-0.000.000.00

3

nzw

Uni

v 0.

315

MV

A 0.00-0.000.00

3

nzw

Uni

v 0.

315

MV

A

-0.00-0.000.00

3

dank

0.2

MV

A

0.000.000.00

3

dank

0.2

MV

A

-0.000.000.00

3

ibr

0.2

MV

A

0.000.000.00

3

ibr

0.2

MV

A

-0.00-0.000.00

3

wds

0.3

15 M

VA 0.00

0.000.00

3

wds

0.3

15 M

VA

-0.00-0.000.00

3

Ayjah Load

40.4020.70

sur-

ayja

h40.4720.538.96

sur-

ayja

h

-40.42-22.958.96

Zoom Load

70.0033.90

sur1

25

94.7551.9643.28

12

sur1

25

-94.50-43.0643.28

12

sur33_load

94.5043.06

alka

mil1

25

70.4941.7032.60

13

alka

mil1

25

-70.30-36.0232.60

13

bbal

i125

74.0843.7035.01

13

bbal

i125

-74.00-37.9135.01

13

alk-

bbal

i1

74.5739.4216.79

alk-

bbal

i1

-74.08-43.7016.79

mdr

b 12

5

94.6360.1846.35

11

mdr

b 12

5

-94.50-51.0146.35

11

mdrb33_load

94.5051.01

nzw

Un

79.0147.4637.37

12

nzw

Un

-78.80-40.3737.37

12

nzwUnvst33_load

78.8040.37

adm33_load

30.6015.68

adm

30.7017.4943.27

14

adm

-30.60-15.6843.27

14

ibr cap2(1)

0.00-14.77

3

qryt

125

36.8221.3817.74

11

qryt

125

-36.70-18.8017.74

11

ynkt125

35.6

220

.68

17.4

3

9ynkt125

-35.

50-1

8.19

17.4

3

9

ytt125

48.2

428

.18

23.6

1

9ytt125

-48.

10-2

4.64

23.6

1

9

qrm

125

102.1562.6348.33

7

qrm

125

-101.90-52.2048.33

7

Mut

trah

106.3322.8844.05

8

Mut

trah

-106.10-13.7444.05

8

Mis

fah1

25

90.9255.3242.56

8

Mis

fah1

25

-90.70-46.4742.56

8

wdk cap2(1)

-0.00-19.76

4

alf1

25

107.2326.0344.45

9

alf1

25

-107.00-15.4644.45

9

alf cap2(1)

4

alf33_load

107.0054.82

rtq12

5

105.7331.8045.48

7

rtq12

5

-105.50-22.4345.48

7

rtq33_load

105.5062.60

mld

125

85.985.9735.14

9

mld

125

-85.800.4535.14

9

mld33_load

85.8039.09

mld cap1(1)

0.00-19.77

4

mob

125

96.2317.1940.01

11

mob

125

-96.00-9.2140.01

11

Nkh 125

102.

3221

.26

42.6

9

8

Nkh 125

-102

.10

-12.

3542

.69

8

blue33_load

120.0061.48

blue

-120.00-61.4843.68

13

blue

120.2674.7243.68

13

mis

125

103.3522.4342.88

13

mis

125

-103.10-13.2942.88

13

khb cap1(1)

-0.00-19.92

4

khb1

25

93.1222.9739.16

11

khb1

25

-92.90-15.2939.16

11

mis

-khb

10.2910.704.02

mis

-khb

-10.27-17.804.02

sah1

25

100.1861.7847.80

10

sah1

25

-99.90-51.1847.80

10

sah33_load

99.9051.18

liwa33_load

96.5049.44

liwa1

25

96.7759.4144.59

13

liwa1

25

-96.50-49.4444.59

13

soh

125

88.8117.2535.73

14

soh

125

-88.60-10.1235.73

14

sur 5

00 T

X x

2

228.25-24.4623.16

15

sur 5

00 T

X x

2

-227.8741.1923.16

15

alw

315

x 2

227.04206.9749.09

5

alw

315

x 2

-226.61-175.8849.09

5

wds

63

x 2

50.1728.8644.76

14

wds

63

x 2

-50.00-25.6244.76

14

alw33_load

31.7017.11

mnh-adm

30.7611.056.63

mnh-adm

-30.70-17.496.63

Ax Manah

6.003.07

alk-sur x2

22.64-19.015.67

alk-sur x2

-22.589.235.67

khb cap1

-0.00-19.92

4

wdk cap2

-0.00-19.76

4

shns cap2

0.00-19.68

4

shns cap1

0.00-19.68

4

alf cap2

4

mld cap1

0.00-19.77

4

sps

GT

1-3

TX

15

sps

GT

1-3

TX

15

sps

ST

1 TX

15

sps

ST

1 TX

15

brk

ST1

-3 P

2 TX

17

brk

ST1

-3 P

2 TX

17

brk

ST1

TX

17

brk

ST1

TX

17

brk

GT1

-3 P

2 TX

18

brk

GT1

-3 P

2 TX

18

brk

GT1

-2 T

X

18

brk

GT1

-2 T

X

18

wdj

GT

12-1

3 TX

14

wdj

GT

12-1

3 TX

14

wdj

GT

11 T

X

14

wdj

GT

11 T

X

14

wdj

GT9

-10

TX

9

wdj

GT9

-10

TX

9

wdj

GT

8 TX

14

wdj

GT

8 TX

14

wdj

GT

6-7

TX

9

wdj

GT

5 TX

14

wdj

GT

5 TX

14

wdj

GT

4 TX

14

wdj

GT

4 TX

14

wdj

GT

3 TX

9

mnh

GT

1-3

TX

5

mnh

GT

1-3

TX

5

mnh

GT

4-5

TX

15

mnh

GT

4-5

TX

15

G~sps ST1

208.9092.8983.14

G~brk GT1-2

227.00170.1489.21

G~wdj GT8

25.2022.5090.09

G~wdj GT5

22.4020.8688.05G~

wdj GT426.4020.8696.79G~

wdj GT3

G~wdj GT12-13

56.2055.5085.39

G~wdj GT9-10

51.4046.5089.44

khb33_loadA

92.9055.12

msf33_load

90.7046.47

wds33_load

50.0025.62

alkamil33_load

70.3036.02

bbali33_load

74.0037.91

wdk33_load

109.4059.05

arph

500

x 2

207.72110.4324.19

14

arph

500

x 2

-207.35-93.2524.19

14

filaj

500

x 2

390.03144.0341.03

15

filaj

500

x 2

-389.48-102.1641.03

15

mis

500

x 2

276.2385.1528.80

15

mis

500

x 2

-275.81-62.0628.80

15

sipB

500

x 2

215.0395.3922.45

15

sipB

500

x 2

-214.64-79.0322.45

15

sipA

500

x 2

119.3775.6213.49

15

sipA

500

x 2

-119.02-66.3013.49

15

G~sps GT1-3

380.70182.5878.63

Dsl Sohar

31.0015.88

Ax Sohar

6.003.07

sis

500

x 2

382.2656.2737.98

15

sis

500

x 2

-381.73-19.4637.98

15

shns33_load

48.9036.67

shns

63

x 2

49.05-0.0839.18

15

shns

63

x 2

-48.902.6939.18

15

soh-

wdj

-5.20-71.5727.18

soh-

wdj

5.4971.7227.18

G~wdj GT6-7

G~brk ST1

208.90151.0592.07

Ax Barka ph-2

6.003.07

Ax Barka

6.003.07

rsl33_load

121.5075.30

ynkt

33_l

oad

35.5

018

.19

ytt3

3_lo

ad

48.1

024

.64

qryt33_load

36.7018.80

muttr33_load

106.1054.36

nhl3

3_lo

ad

102.

1052

.31

jah3

3_lo

ad

58.0

026

.43

mld-rtq

106.1231.0921.80

mld-rtq

-105.73-31.8021.80

ytt-y

nkt1

x2

35.6

320

.14

8.35

ytt-y

nkt1

x2

-35.

62-2

0.68

8.35

dnk

63 x

2

26.5011.2523.71

10

dnk

63 x

2

-26.40-9.9623.71

10

alw

63

x 2

31.8218.8228.65

16

alw

63

x 2

-31.70-17.1128.65

16

Filaj-Nakhal x2

102.6020.4120.47

Filaj-Nakhal x2

-102

.32

-21.

2620

.47

PDO Network

40.20 ..24.91 ..0.85

UAE

200.90..124.51..0.85

G~mnh GT1-3

82.8069.7593.13

izk-nzwUnvst x2

-88.04-53.5020.21

izk-nzwUnvst x2

88.2552.7820.21

Ax Rusail

7.003.59

Ax Alkamil

6.003.07

izk-

mud

b

53.0626.3612.41

izk-

mud

b

-52.76-32.5412.41

Rawdh 33_load

15.207.79

izk33_load

64.7033.15

Raw

dh 6

3MV

Ax

2

15.218.6314.61

10

Raw

dh 6

3MV

Ax

2

-15.20-7.7914.61

10

izk

125

x 2

64.8838.1830.84

11

izk

125

x 2

-64.70-33.1530.84

11

mudb33_load

79.0038.26

mud

b 12

5 x

2

79.2145.1838.08

9

mud

b 12

5 x

2

-79.00-38.2638.08

9

mud

b-R

awdh

x2

-15.21-8.633.51

mud

b-R

awdh

x2

15.223.653.51

alk-mdrb x2

-136.45-69.7430.38

alk-mdrb x2

137.9973.0030.38

sis-sah

-183.39-63.9237.83

sis-sah

184.8169.1837.83

ibr cap2

0.00-14.77

3

dnk cap2

1

dnk cap1

1

gbr S

T5-6

TX

3gbr S

T5-6

TX

3

rsl G

T8 T

X

3

rsl G

T8 T

X

3

rsl G

T7

TX

3

rsl G

T7

TX

3

rsl G

T1-3

TX

3

rsl G

T1-3

TX

3

G~mnh GT4-5

182.30198.0081.56

G~rsl_GT4-6

239.10166.3091.80

G~rsl_GT8

90.1041.9784.95

G~rsl_GT7

91.0036.8465.45

dnk33_load

26.4019.80

ibr33_load

103.5053.02

filaj

-brk

ps3-

4

453.46285.2134.39

filaj

-brk

ps3-

4

-452.66-279.4634.39

filaj

-brk

ps 1

-2

-452.66-279.4634.39

filaj

-brk

ps 1

-2

453.46285.2134.39

ibr

125

TX2

103.7632.7344.93

11

ibr

125

TX2

-103.50-23.4944.93

11

sps-

sib

x 2

215.0666.3914.71

sps-

sib

x 2

-215.03-95.3914.71

sps-

sia

x 2

239.40104.7917.14

sps-

sia

x 2

-239.37-133.7317.14

sip220_load

120.0058.12

Ax_wdj

7.003.59

wdj-alw

25.65-49.6016.42

wdj-alw

-25.4045.6216.42

mld-mis

162.1728.9232.09

mld-mis

-161.76-27.8232.09

filaj

-mld

-30.34-9.236.20

filaj

-mld

30.403.826.20

brk-filaj

256.4877.9326.17

brk-filaj

-256.07-77.6326.17

seb33_load

78.9040.42

seb

125

TX1

79.1147.4837.25

12

seb

125

TX1

-78.90-40.4237.25

12

mob-brk

-96.23-17.1919.19

mob-brk

96.4116.4119.19

rsl-s

umi x

2

-128.34-57.9027.46

rsl-s

umi x

2

129.2158.8227.46

suml33_load

98.1044.70

sum

125

x 2

98.3754.5145.72

10

sum

125

x 2

-98.10-44.7045.72

10

rsl 7

5 x

4

121.9288.7049.96

10

rsl 7

5 x

4

-121.50-75.3049.96

10

alw220-uae220

-200.19-133.2615.88

alw220-uae220

200.90124.5115.88

G~alk GT1-3

267.90218.2595.00

alka

mil

GT

1-3

TX

-266.47-166.4496.92

11

alka

mil

GT

1-3

TX

267.90218.2596.92

11

G~rsl_GT1-3

229.80144.8066.09

sum

i-izk

sum

i-izk

-29.90-11.046.25

DIg

SILE

NT

Date post:	12-Jul-2015
Category:	Technology
Upload:	dave-adam
View:	799 times
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Oetc 2009 Capability Statement. Final Draft

Technology