Fifth Annual Conference

Power Transmission in India

< State Initiatives >

Gujarat Energy Transmission Corporation Limited[ An ISO 9000 : 2008 Company ]

30th April, 2012

Presentation Sequence

• What are some of the key State initiatives under way?

• What are their investment plans in the short and medium terms?

• What are the key issues and concerns from an STU’s perspective?

Key State Initiatives Under Way

4

Installed Generation CapacityAs on 31.03.2012

Sr.

No.Sector

Installed

Capacity in MW

1 State Sector 4996

2 Private Sector 6325

3 Central Sector 3494

Total 14815*

* Excluding RE capacity – 2884 MW wind + 600 MW

Solar + 31.2 MW Bio-Mass

Sr.

No.Particulars

Substations

(Nos.)

Transmission

Lines (CKM)

Transformation

Capacity (MVA)

Shunt Capacitors in

MVAR

1 400 KV 11 3189 7725 4631 MVAR

132 KV – 216 MVAR

66 KV – 1317 MVAR

22 KV – 78 MVAR

11 KV – 3020 MVAR

2 220 KV 79 14852 19400

3 132 KV 49 4808 6032.5

4 66 KV / 33 KV 1131 22108 23795

Total 1270 44957 56952 4631

Transmission Network Development As on 31.03.2012

Maximum Demand Catered in Gujarat System

5

GETCO Network Status

Ma

x D

ema

nd

Ca

tere

d (

MW

)

Focused Areas for Consistency and long term sustainability

• State Network Development

• Renovation & Modernization

Equipment Failure

• Operation and Maintenance (Condition Monitoring)

System Availability

Hot line maintenance

• Transmission Losses – Reactive Power Management

• Intra –State ABT and Open Access

• Skill up gradation in Engineering

Standard design to reduce project cycle time

• Safety

Key State Initiatives

Switching over to Digital technology

Pilot Project on Optical CT and Digital Substation

Intrastate Energy accounting software

Implementation of PMUs and WAMS

Optical Ground Wire (OPGW) for communication and unmanned substation operation

Hybrid substation switchgear Technology

Adoption of advanced condition monitoring equipment

Geographical Information System for mapping of transmission assets.

Monopole design for transmission towers

High Ampacity Conductor

Implementation of advanced safety tools

Live line and dead line maintenance

7

Adoption of New

Technology

Key State Initiatives- Steps towards Smart Grid

Key Investment Plan (11th & 12th FYP)

2002-03

2003-04

2004-05

2005-06

2006-07

2007-08

2008-09

2009-10

2010-11

2011-12

CAPEX (in Rs Cr.) 180 146 148 208 201 401 681 1205 1850 2000

0

500

1000

1500

2000

2500

Am

ou

nt

in R

s C

r.CAPEX (in Rs Cr.)

10th FYP : Rs 882 Cr. 11th FYP : Rs 6137 Cr.

10th & 11th Five Year Achievement

12th Five year Plan

Key Issues and Concerns from STU’s

Prospective

Tariff based bidding in Intrastate Transmission

Network Development – Cost constraints to pay RoW cost and forest clearance

Smart Grid Solution: Though we talk, Not many companies are ready with full end

to end solution with modular features.

Land for Substations – Ban on use of Gaucher Land

Aged Assets – We cannot ignore it, so Renovation and modernization is essential

Skilled manpower both Executive & Non-executive

Renewable Energy Integration – As high as 30% of total installed capacity

Lack of Inter-State line – Renewable Energy flow not taken care

Key Issues and Concerns

10th & 11th Five Year Network Addition & 12th Five year Plan

•392 no of sub-stations, which are more than last 14 years cumulative figures prior to 2007

•120% increase from 10th FYP to 11th FYP

• Major focus on 66 KV Substation (375 nos of 66 KV S/S constructed in 11th FYP)

•First 400 KV Sub-station in South Gujarat and Kutch Region – 400 KV Kosamba & Varsana

10th & 11th Five Year Achievement & 12th Five year Plan

•9786 CKM of tr. line, which are more than last 13 years cumulative figures prior to 2007

•123% increase from 10th FYP to 11th FYP

• Major focus on 400 KV & 66 KV Transmission lines

•First 400 KV link between Kutch to Saurashtra (400 KV Mundra-Varsana-Hadala)

VARSANA

KOSAMBA

RAJPUR

KUKMA

DUDHREJ

WAGRA

BHAT

BOTAD

AGATHALA

LALPAR

KANGASYALI

BHOMIYADAR

PIRANA

SAMI

SHAPUR

LUNAWADA

BHIMASAR

CHARANKA

GPPC TPS

Adani, Mundra TATA UMPP,

Mundra

R&M Planning – Key Factors

Why need of R&M ?

• 1600 Kms of coastal line with wind pressure/ creek areas.

• Chemically polluted industrial zone.

• Challenge of uninterrupted & quality power supply on 24 X 7 basis

due to frequent equipment failure and tripping of lines.

• Inadequate capacity and obsolete design.

Ageing of Sub Stations (2006-07)

> 30 Yrs

15%

11- 20 Yrs

36%

0 - 10 Yrs

33%21-30 Yrs

16%

Ageing of Transmission Lines (2006-07)

> 30 Yrs

22%

21 - 30 Yrs

16%

0 - 10 Yrs

33%

11 - 20 Yrs

29%

FY 2006-07

31% of substations &

38% of Transmission

lines are more than 20

years old.

Equipment Failure (%)

0

0.5

1

1.5

2

2.5

X'mer CT PT LA CB

Equipments

Fail

ure

2006-07 2007-08 2008-09 2009-10 2010-11

System Availability

Hotline MaintenanceThe hot-line water washing machine mounted on vehicle is put in

service since Feb’11.( Designed by GETCO)

22

Sr. No. Name of LTOA Beneficiary % age Allocation

1 DGVCL 27.1766%

2 MGVCL 13.4559%

3 UGVCL 24.3135%

4 PGVCL 31.6908%

5 GUVNL - For Licensee 0.0575%

6 GSFC -For GIPCL Share 0.4232%

7 GACL -For GIPCL Share 0.2939%

8 GAIL -For GIPCL Share 0.0118%

9 ONGC-Hazira CPP wheeling 0.1017%

10 ONGC-Ankl. - CPP wheeling 0.1155%

11 GACL - CPP Wheeling 0.0872%

12 Searchchem - UPL CPP wheeling 0.0766%

13 SAL Steel Ltd. - wheeling 0.0981%

14 Heavy Water Plant-DAE 0.0855%

Sr. No. Name of MTOA Beneficiary % age Allocation

1 Jindal Saw Ltd 0.0726%

2 Torrent Energy Ltd (GUVNL) Dahej 0.0726%

3 Torrent Power Limited (GUVNL) 1.0170%

4 Torrent Power Limited (SUGEN) 0.7265%

5 Ultra Tech Cement Ltd-Surat 0.0291%

6 Ultra Tech Cement Ltd-Jafrabad 0.0944%

Total 100.000%

Open Access Beneficiaries

Short Term Open Access Application FY 11-12

Month No of Applications Approved Reject

April'11 88 84 4

May'11 59 56 3

June'11 78 76 2

July'11 57 51 6

Aug'11 55 42 13

Sept'11 81 58 23

Oct'11 80 70 10

Nov'11 92 75 17

Dec'11 146 132 14

Jan'12 140 136 4

Feb'12 131 122 9

Mar'12 180 168 12

TOTAL 1187 1070 117

24

Renewable Power Integration: Capacity addition in MW

Sola

r C

ap

aci

ty A

dd

itio

n (

MW

)

Transmission Losses

Safety: Our Prime Concern

Digital Sub Station

28

Optical Current Transformer

Proposed Architecture of ABT software:

Data collecting Unit (In Station

where more than one meter)

Data collecting Unit (In

Station where only one

meter)Field Level

Router & Firewall

Control Center level

Meter Data

Communication server

Data Acquisition server

Communication

SEPARATE ABT LAN

Cluster connectivity

Database Server 1 (Active)

Database Server 2

(Passive)

Storage

Redundant

connectivity

SCH USERS 1……N

ABT USERS 1……N

OA USERS 1……N

Data Processing Server

(ABT Software

server)

Data collecting Unit (In

Station where only one

meter)

MeterMeterMeter N

• The complexity of Gujarat Grid increased with integration of IPP, UMPP, CPP, Non-

conventional Energy sources like Wind, Solar, Bio-mass Generation and increase in

Transmission Infrastructure in the State.

• Reduce Manual Intervention so less Chances of Error.

• To address all complexities of Energy Accounting and scheduling methodology

• Future changes can be implemented smoothly, safely and timely.

Proposed Architecture of PMUs and WAMS:

• It is one of the Prime Project towards the journey of Smart Grid Technology.

• WAMS facilitate the system operator to know Dynamic behavior of the system

• PMU data is used to design many analytics software like Dynamic state estimator,

Oscillation stability, Voltage stability which are intelligent tools to system operator to run

system safe and reliable manner in real time.

• It can be concluded that if present SCADA system is X-ray status of the system and

WAMS is the MRI status of the system.

• It will change the mind set of system operator from conservative steady state to real time

Dynamic status.

Euro Solar, Bhachau–5MWBack Bone Enterprise – 5 MWKonark Gujarat – 5 MWICML – 9 MWZeba Solar – 10 MWIndia Solar Ray – 10MWAmbit Advisory – 5MWTaxus infrastructure-5MW

Lanco, Bhadrada-5MWLanco, Chandiyala – 15 MWPLG Power, Sami-20MWAstonfield Solar – 11.5 MWPLG Photovoltaic-20MW

JaiHindi – 5 MW

Solitaire, Mitha-15MWPrecious, Akhaj-15MW

Solar Semi Conductor–20 MWCargo Motors, Rapar – 25 MWS J Green Park Energy – 5MW

31

Geographical locations for Solar power projects

Sunkon Energy -10 MWMono Steel – 10MW

Responsive – 25 MWUjjwala -25 MWChhatel (Ispat) -25 MW

Welspun Ltd – 15 MWUnity 5 MW

Geographical locations for Solar power projects

Azure Power, Dhama –5 MWESP Urja Ltd – 5 MWMillenium Synergy, Dasada – 10 MWLoroux Bio Energy – 25 MWEMCO – 5 MWWAA Solar – 10 MWVisual Percept – 25MWEnvironmental – 10 MW

Tata Power Limited -25 MW

aCBC solar -10 MWGanges Green – 25 MWGaneshwani – 5 MWGreen Infra -10 MWAravli Infra 5 MWGHI Energy - 5 MWMoserBear – 15MWAPCA Power – 5MWHiraco Renewable – 20MW

Kemrock – 10 MW

Adani Ltd – 40MWGMDC -5 MW

ACME– 15 MW

Azure Haryana – 10 MW

Aatash Power – 5MW

Dreisatz MySolar-15MW

MySolar24 – 15MW

Tathith Energies- 5 MW

Sun Borne – 15MW

Sand land-25MW

GIPCL – 5 MW

JSW Energy, Deodar-5MWSolar Semiconductor, Ajwada-20MWSolitaire (MoserBear), Mudetha-15MWTorrent Power, Savpura-25MWNTPC, Morwada-50MWWelspun Urja-40MW

Blue colour – Projects commissioned

Red colour - Projects to be commissioned

Charanka Solar Park

Projects Comiissioned – 214 MW

Projects to be Comiissioned –

36 MW

GROUP SOLAR DEVELOPER'S NAMECAPACITY

MW

1

M/S NKG INFRASTRUCTURE LTD. 10MW

40MWM/S ZF STEERING GEAR (INDIA) LTD. 05MW

M/S GMR GUJARAT SOLAR POWER PVT.LTD. 25MW

2M/S ALEX ASTRAL POWER PVT.LTD. 25MW

40MWM/S AES SOLAR ENERGY GUJARAT PVT.LTD. 15MW

3

M/S AVTAR SOLAR 05MW

45MWM/S ROHA ENERGY PVT.LTD. 25MW

M/S INSPIRA SOLAR ENERGY LTD. 15MW

4

M/S KIRAN ENERGY SOLAR POWER PVT.LTD. 20MW

55MWM/S SUN CLEAN 25MW

M/S EMAMI CEMENT LTD. 10MW

5

M/S LANCO INFRATECH LTD. 15MW

45MWM/S GPPC 05MW

M/S SUN EDISON 25MW

6

M/S YANTRA 05MW

15MWM/S SURANA TELECOM & POWER LTD. 05MW

M/S GPCL 05MW

TOTAL 240MW

RADHANPUR

GMR

25MW

ZF

5MW

NKG

10MW

AES

15MW

ALEX

25MW

INSPIRA

15MW

ROHA

25MW

AVTAR

5MW

EMAMI

10MW

SUN

CLEAN

25MW

KIRAN

20MW

SUN

EDISON

25MW

GPPC

5MW

LANCO

15MW

GPCL

5MW

SURANA

5MW

YANTRA

5MW

LINK CABLE T0

GETCO

66 / 11KV S/S

2 1

F1F2F4 F3F5F6F8 F7F9F10F11F12F13F14

100MVA

66/220KV

TR-2

100MVA

66/220KV

TR-1

40MW45MW55MW45MW

DEODAR

220KV LINE

SHIVLAKHA

220KV LINE

66KV BUS

220KV BUS

SANTALPUR

1 2

F1F2

40MW15MW

CHARANKA SOLAR PARK

66 KV BUS

SPARESPARE SPARESPARE SPARE

SOLAR DEVELOPER

66KV CKT.WITH 3+1

SPARE 66KV CABLE