SOLU KHOLA (DUDHKOSHI) HYDROELECTRIC PROJECT...

Hydro venture Pvt.Ltd.

Hattisar, Kathmandu

SOLU KHOLA (DUDHKOSHI)

HYDROELECTRIC PROJECT (86MW)

Progress Report # W02 (Sept 2016-Dec 2016)

Submitted by:

Hydro Venture Pvt. Ltd. (HVPL)

Hattisar, Kathmandu, Nepal

December 2016

Hydro Venture Pvt. Ltd.

Progress Report of SKDKHEP#W02 i

Table of contents

About the Company ........................................................................................... 1

1.1 Description of the Company ........................................................................................... 1

1.2 Board of Directors........................................................................................................... 1

Project description ............................................................................................. 2

2.1 Project Background ......................................................................................................... 2

2.2 Salient features ................................................................................................................ 2

2.3 Summary of previous works ........................................................................................... 5

2.4 Summary of recent works ............................................................................................... 6

Work progress in detail ........................................................................................ 7

3.1 Pre-construction and Infrastructure works ...................................................................... 7

3.2 Civil works .................................................................................................................... 13

3.3 Hydro-mechanical works .............................................................................................. 15

3.4 Electro-mechanical works ............................................................................................. 15

3.5 Transmission facilities .................................................................................................. 15

Other works related to the project ................................................................. 16

4.1 Equity management ...................................................................................................... 16


Progress Report of SKDKHEP#W02 ii

List of Figures

Figure 1: Excavated access towards Headworks of SKDHEP .................................................. 8

Figure 2: Excavated access towards Headworks of SKD HEP needs protection works. .......... 8

Figure 3: Access road Excavation works on progress at headworks site. ................................. 8

Figure 4: Access road from Panchan towards the Camp at Bhorleni ........................................ 9

Figure 5: Access road from Panchan towards the Camp at Bhorleni ........................................ 9

Figure 6: Excavation of SKDKHEP Powerhouse Access road in Progress .............................. 9

Figure 7: Excavation of SKDKHEP Powerhouse Access road in Progress .............................. 9

Figure 8: Gabion protection works for road at Panchan ............................................................ 9

Figure 9: Camp at Bhorleni ...................................................................................................... 10

Figure 10: Kitchen set up ......................................................................................................... 10

Figure 11: Camp area layout at Headworks area ..................................................................... 10

Figure 12: Preliminary layout of camp done at Headworks area ............................................. 10

Figure 13 Pit samples being collected at site ........................................................................... 11

Figure 14. River Model with boulders and water flow ............................................................ 12

Figure 15. River Model validation in progress ........................................................................ 12

Figure 16. Headworks arrangement, weir, intake, undersluice, flood wall and stilling basin . 13

Figure 17. Stilling basin with reference elevation ................................................................... 13

Figure 18. Headworks arrangement ........................................................................................ 13

Figure 19. Gravel trap flushing outlet and rip rap for protection of settling basin .................. 13


Progress Report of SKDKHEP#W02 iii

List of tables

Table 1 Company details ........................................................................................................... 1

Table 2. Board of Directors ....................................................................................................... 1

Table 3 Salient features .............................................................................................................. 2

Table 4 Summary of previous activities .................................................................................... 5

Table 5. Summary of recent activities ....................................................................................... 6

Table 6. Total cost .................................................................................................................... 16

Table 7. Equity Management ................................................................................................... 16

Table 8. Participating Banks and Investment Company with percentage financing ............... 16


1

About the Company

1.1 Description of the Company

Hydro Venture Private Limited (HVPL), a limited liability Company, established on 2064 BS

with the main objective to develop, build and operate hydroelectric project in Nepal. The

company from its very beginning is focusing on the development of the Solu Khola (Dudh

Koshi) Hydroelectric Project. This company has completed Feasibility study, Environmental

Impact Assessment and connection agreement, obtained Generation License from Department

of Electricity Development (DoED) and finally concluded a Power Purchase Agreement (PPA)

with Nepal Electricity Authority on 25th February 2015 (2071/11/13 BS).

Table 1 Company details

Company Hydro Venture Pvt. Ltd.

Type Private Limited Company

Address Hattisar, Kathmandu

Establishment 2064 B.S.

PAN no 302673955 Kathmandu

Registration no. at Office of Company

Registrar

8021/064/065 B.S.

Department of Industry Registration No 2117/77/070/071 ( 2070-06-10)

Project under development Solu Khola (Dudh Koshi) Hydro Electric Project -86

MW

Survey license no. BBB 065/066 B U S-435

Generation license no BBB 71/72-B U. 126

1.2 Board of Directors

Table 2. Board of Directors

Name of Director Position

Mr. Min Raj Kadel Chairman

Mr. Him Prasad Pathak Managing Director

Mr. Sushil Thapa Executive Director

Mr. Bhoj Bahadur Shah Director

Mr. Mahendra Kumar Giri Director

Mr. Mukti Ram Pandey Director

Mr. Paritosh Paudyal Director


2

Project description

2.1 Project Background

Solu Khola (Dudh Koshi) Hydroelectric Project (SKDKHEP) is a Run of River (RoR) type

project with installed capacity 86 MW that lies in Solukhumbu District of Sagarmatha Zone in

the Eastern Development Region of Nepal. The Project was identified by HVPL in 2008. The

proposed headworks site is located near Bhadaure Village in ward No. 1 of Tinla Village

Development Committee (VDC) and ward No. 8 of Kagel VDC. The tunnel passes underneath

of Kattike, Gairi, Pokhari Bhanjyang, Phalate and Pairatham of Kagel VDC. The proposed

powerhouse site is located at Maikubesi ward No. 4 of Panchan VDC at about 1km upstream

from the suspension bridge over Dudh Koshi River at Jaleshwor Mahadev. The major

structures of the project are diversion weir, undersluice, intake, approach canal, surface settling

basin, headrace tunnel, surge shaft, underground penstock shaft, surface powerhouse and

tailrace box culvert. The energy generated from the project will be evacuated to the Integrated

Nepal Power System (INPS) at the proposed sub-station at Lamane in Tinla VDC of

Solukhumbu District. Geographically, the physical area of the project lies within longitudes of

863735E to 864115E and latitude of 272153N to 272515N.

DoED had awarded the survey license to the company on 2065-07-25 to conduct the necessary

investigations, feasibility study and environmental impact assessment (EIA) of the project.

Upon completion of feasibility study and EIA of the project in October 2013, Hydro Venture

applied for the generation license with the DoED and presented among the concerned officials.

DoED accordingly awarded the Generation License to HVPL on 2071-06-02 (18 September

2014).

The application for PPA was filed in February 2012 and regular follow ups were made with

the Power Trade department of NEA. After the introduction of new tariff structure for projects

up to 100 MW, PPA between HVPL and NEA was concluded on 25 February 2015.

Apart from PPA, HVPL is continuously working on technical parts towards the Detail Design

and Tender Documents preparation. The Financial Closure has been concluded with 11 Banks

and Financial Institution with the lead by Nepal Investment Bank Limited (NIBL) on

2073/4/20. HVPL is also involved in acquisition of private land and development of

infrastructures like access road and camp facilities of the Project.

2.2 Salient features

The salient features of the project is listed below:

Table 3 Salient features

S.N. Components Description

1 Project Location Solukhumbu District, Sagarmatha Zone

Intake Site Tinla and Kagel VDCs


3


Powerhouse Area Panchan VDC

Latitude 27°21’53”N to 27°25’15”N

Longitude 86°37’35”E to 86°41’15”E

2 General

Name of River Solu Khola

Type of Scheme Run-of-River

Gross Head 613.20 m

Net Head 598.09 m

Installed Capacity 86,000 kW

3 Hydrology

Catchment Area 454 km2

Design Discharge 17.05 m3/s

Design Flood Discharge 475 m3/s (100 Yr. Flood)

4 Diversion Weir

Type of Weir Gravity free flow concrete

Length of Weir 31.8 m

Max. Height of Weir 7.4 m from foundation level

Crest Elevation EL. 1,260.5 masl

5 Intake Structure

Type 4 nos of Side intake

Size (W x H) 2.80 m (W) x 2.30 m (H)

Crest elevation of Intake EL. 1,257.6 masl

6 Undersluice Structure

Type 2 sets of Radial Gate

Size (W x H) 2.00 m (W) x 3.00 m (H)

Crest elevation of Undersluice EL. 1,254.6 masl

7 Gravel Trap

Type Rectangular, RCC

Size 6.15m (W) x 6.6 m (L)

Bed load size to trap 5 mm

8 Approach Canal

Type and Number Free flow box culvert, total 4 nos

Size 2.2 m x 2.2 m

9 Desanding Basin

Type Surface

No of Bays 4 Nos

Dimension (L x B x H) m 85 m (L) x 9.5 m (W) x 4.5 m (H) Effective

Particle Size to be Settled 0.15 mm (90% trapping efficiency)

Outlet Water Level EL. 1,260.35 m


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10 Headrace box Culvert

Length 50.0 m

Size 4.5m (W) x 4.5m (H)

Numbers 1 (One)

11 Headrace Tunnel

Section Type Inverted-D

Length 4,259.0 m

Size 4.0m (W) x 4.25m (H)

Support Shotcrete

11 Surge Tunnel

Size 4.0m x 4.0m of 372.0m length in slope

12 Penstock

Length upto Trifurcation 2098.0 m

Horizontal section before Drop

Shaft 1 20.0 m

Drop Shaft-1 226.0 m

Inclined Section 1 717.0 m

Drop Shaft-2 201.0 m

Inclined Section 2 934.0 m

Internal Diameter and length

2.35 m for 1st 1130 m length,

2.25m for next 551m length and

2.1m for 417 m length (last portion)

Thickness of steel penstock 10 mm ~ 44 mm with yield strength 450MPA

13 Powerhouse

Type Surface

Size 54.6 m x 16.2 m x19.45m

14 Tailrace

Type Free Flow, Box Culvert

Length 70 m

Size (B x H) 4.6 m x 1.9 m

15 Turbine

Type Vertical Axis Pelton

Speed of Turbine 600 RPM

Rated Output Capacity per Unit 3 x 30.32 MW with 10% COL

Efficiency 91%

16 Governor

Type Digital/Hydraulic with PID Control

Adjustment for Speed Drop Between 0 to 5 %

17 Generator

Type Synchronous 3 Phase

Rated Output Capacity per Unit 34.6 MVA


5


Voltage 11 kV

Efficiency 97%

18 Transformer

Type Out Door, Oil Immersed

Rated Capacity per Unit Three Phase 35 MVA total Nos 3

Frequency 50 Hz

19 Transmission Line

Length 12 km

Voltage 132 KV

Interconnection Point Proposed NEA sub-station at Tinla (Lamane) Solu

20 Power and Energy Generation

Mean annual energy per year 520.20 GWh (Dry- 100.27 GWh, Wet- 419.93 GWh)

2.3 Summary of previous works

In last one year several studies including investigation was repeated to accommodate the effects

of the last mega earthquake and future earthquakes. After the appointment of Hydro Consult

Engineering Limited for Detail Design & tender document preparation, the Consultant has

made thorough review of the feasibility study, a high level experts from the Consultant along

with the Client visited the site and came out with few modification in the project layout

specially deletion of Adit-1 Tunnel, straightening the headrace tunnel and replacement of

surface penstock by a combination of underground vertical and inclined penstock shaft and

shifting of Powerhouse building towards upstream side at the lap of the rock cliff.

Following Table 1.1 presents the summary of activities and progress of the project from the

date of survey license to June 2016, i.e. till previous progress report.

Table 4 Summary of previous activities

SN Activities Dates

1 Award of Survey License by DoED Nov-2008

2 Application for Power Purchase Agreement to NEA Feb-2012

3 License Capacity Upgrade to 86 MW by DoED Aug-2012

4 Connection Agreement with NEA Jan-2013

5 EIA Study Jan to Oct 2013

6 Registration at Department of Industry 26 Sept 2013

7 Application for Generation License to DoED Oct-2013

8 Award of Generation License by DoED Sept. 2014

9 Conclusion of PPA with Nepal Electricity Authority 25 Feb 2015

10 Application of survey license for transmission line to DoED June 2015

11 Contract agreement for Detail Design & Tender Document preparation

with Hydro Consult Engineering Limited

Nov 2015

12 Extension of time for Financial Closure by DoED Dec 2015

13 Application for debt financing to the Nepal Investment Bank Limited to

lead the consortium of the financing institution. Feb 2016


6

SN Activities Dates

14 Start of Construction of Access road by Radha Krishna and Brother

Construction Pvt. Ltd Mar 2016

15 Agreement with Geophysical Research and Consultancy Service Pvt.

Ltd for geophysical investigation works April 2016

16 Agreement with ICGS Pvt. Ltd for core drilling works April 2016

17 Report submission of Geophysical Investigation. May 2016

18 Award of Survey license for Transmission Line by DoED May 2016

19 Agreement for river and hydraulic modelling with Hydro Lab Pvt. Ltd May 2016

20 Agreement with Integrated Engineering and Management Group for the

supply of Explosive

July 2016

21 Agreement with Nepal Environment and Development Consultant Pvt.

Ltd. (NEDC) for IEE study of transmission line works July 2016

22 Site Visit of Technical Team from Hydro Consult July 2016

23

Financial Closure Concluded between HVPL and Consortium of 11

Banks and Financial Institution with the lead by Nepal Investment Bank

Limited

Aug 2016

2.4 Summary of recent works

Similarly, the activities of the project during this reporting period i.e. from July 2016 to

December 2016 are listed below;

Table 5. Summary of recent activities

SN Activities Dates

1 Agreement with Rex Prefab for construction of camp phase 2 Oct 2016

2 Site Visit by the Representative of District Forest Office and Survey Office Oct 2016

3 River Validation at Hydro Lab Nov 2016

4 Quotation collection for test adit works Nov 2016

5 Draft report of Core Drilling Nov 2016

6 Presentation of ToR for IEE of Transmission Line works at DoED Nov 2016

7 Camp at Bhorleni near Adit-2 completed Nov 2016

8 Lay out of camps at Headworks area completd , construction work ongoing Nov 2016

9 Track opening of access road till bridge 1 completed Nov 2016

10 Track opening of access road till adit-4 completed Dec 2016

11 Finalized and ordered 2 Bailey Bridge required for access road Dec 2016

12 Amendment of PPA for revised RCOD (Sept 26, 2020) Dec 2016

13 Construction of camps at headworks and powerhouse and up gradation of road Ongoing


7

Work progress in detail

Moreover, the company has almost completed the preparation for the next phases i.e

Construction works of the project. Detail work-out for the contracting strategy of project

construction, tender document preparation, obtaining of construction license for transmission

line etc. are currently ongoing jobs. Construction of access road and camp has already started

and in good progress.

The works in this project can be divided as follows:

A. Pre-construction and Infrastructure works

B. Civil works

C. Hydro-mechanical works

D. Electro-mechanical works

E. Transmission facilities

3.1 Pre-construction and Infrastructure works

This topic covers the works required to be completed before the major construction work starts.

Following topics are covered by this topic and described in detail

i. Land acquisition

Based on different types of ownership, there are two types of lands required by the project i.e.

governmental and private. Within this frame these lands are either leased till the project period

or purchased. Most of the Private land required for the project component has already

purchased and few are in the process.

Application for the lease of Government Land has already submitted to the respective office

along with the permission of tree cuttings. Site visit by the representative of District Forest

Office and Survey Offices has been completed. Final report from District Forest Office to the

Department of Forest is in final stage.

ii. Access Road


8

Figure 1: Excavated access towards Headworks of

SKDHEP

Figure 2: Excavated access towards Headworks of

SKD HEP needs protection works.

Excavation of about 2.0km access road connecting Headworks at Bhadaure has been already

completed and about 1.0km further road towards the Headworks is remaining. Refer Figure 1,

Figure 2 and Figure 3 for the progress update of headworks access road.

Figure 3: Access road Excavation works on progress at headworks site.

Similarly, excavation of access road around 80% from Panchan towards the Powerhouse has

been completed. At the same time around 70% access road connecting Panchan to Headworks

has been also completed. Thus road to connect Bhadaure (headworks) to Thuldhunga together

with the construction of Bridge crossing is remaining. However, 2 number of Bailey bridges

has been already ordered to manufacturer and the design of civil structures for Bridge 1 has

been completed by HCEL.

Refer Figure 4, Figure 5: Access road from Panchan towards the Camp at Bhorleni, Figure 6

and Figure 7 and Figure 8 for the progress update of access road of Powerhouse.


9

Figure 4: Access road from Panchan towards the

Camp at Bhorleni

Figure 5: Access road from Panchan towards the Camp

at Bhorleni

Figure 6: Excavation of SKDKHEP Powerhouse

Access road in Progress

Figure 7: Excavation of SKDKHEP Powerhouse

Access road in Progress

Figure 8: Gabion protection works for road at Panchan

Towards Camp

Towards Powerhouse


10

iii. CAMPS

Temporary camp establishment at Bhorleni, near Adit 2 and surge tunnel area has been

completed, refer figure 8 and 9. Layout of Permanent Camp (phase 2) at Headworks and

Powerhouse has been finalized refer figure 10 and 11. Contractor has already mobilized for the

construction works.

Figure 9: Camp at Bhorleni

Figure 10: Kitchen set up

Figure 11: Camp area layout at Headworks area

Figure 12: Preliminary layout of camp done at

Headworks area

iv. Detail Project Report (DPR)

HCEL the consultant submitted a final DPR report of the project. The consultant has

submitted the draft tender documents for different packages. The in-house team and the

technical experts are currently engaged in reviewing the documents and providing

comments and discussing the project optimization with the consultant.

v. Transmission line route survey


11

A transmission line walkover survey report has been submitted by the consultant. Along

with this, a detail topographical survey has been completed by the consultant. DPR report

consists of detail design of transmission line components.

vi. Sub-surface geological investigation

Two drills at headworks 20m vertical in right bank and 25m inclined in left bank was

completed. Similarly 113m vertical drill at surge shaft location, 150m vertical drill at

vertical shaft 2 at 30m drill at penstock alignment nearby powerhouse was recently

completed. The drilling contractor has already submitted the draft report. The Design

consultant is reviewing the report. However the output of the drilling collected from site

visit and progress report was incorporated in the design works. The core samples collected

from each drill were also tested for Universal Compressive Strength, point load test and

Unit weight. The results of these are submitted in the draft report by ICGS.

vii. Bed material Survey

For sediment concentration analysis, 72 days of sediment samples in first lot and 25 samples

in second lot have been sent to the Consultant for the Concentration analysis. This includes

dry samples and wet samples on each day. Some of the samples of monsoon was sent to

Hydro Lab Pvt. Ltd. by the client to analyze the particle size distribution (PSD) and mineral

content analysis. Along with these, 2 pit samples were collected to observe the bed materials

required for physical modelling. These samples were analyzed by Hydro Lab and used as a

basis for roughness of physical modelling, the report of the same has already received.

Figure 13 Pit samples being collected at site

viii. Physical modelling

Based on the site visit survey a physical model of the river was build and this river model has

been validated. The test of the physical model with structure has been completed, based on the


12

performance of the physical modelling, some minor modification of headworks is being on

going. The photograph of model test is shown below:

Preparing river model for validation

Figure 14. River Model with boulders and water flow

Validation of river model in different discharges

Figure 15. River Model validation in progress


13

Physical model of headworks in 1:40 scale

Figure 16. Headworks arrangement, weir, intake,

undersluice, flood wall and stilling basin

Figure 17. Stilling basin with reference elevation

Figure 18. Headworks arrangement

Figure 19. Gravel trap flushing outlet and rip rap for

protection of settling basin

3.2 Civil works

Total civil works is sub-divided into surface and underground structures. Surface structures

include the weir, intake, gravel trap, approach canal, settling basin, powerhouse and switchyard

whereas headrace tunnel, surge shaft and penstock shaft lies in underground structures.

i. Surface structures

Headworks-

The diversion weir is a gravity weir of 31.80 m long crest with horizontal floor stilling basin.

The weir is designed by taking the advantage of side rock slope on the right bank of the river.

The weir crest is fixed at 1260.50 masl and invert level of intake at 1257.50 masl to divert the

design discharge of 17.05 m3/sec with additional 15% for gravel trap and settling basin

flushing. The head over the weir crest during 1 in 100 year flood, which is equivalent to 470.0


14

m3/s, is calculated to be about 3.6 m, which means that the maximum water level will be at

1264.10 masl considering the one undersluice gate opening. A low head Undersluice with two

gates is proposed on the left side of the diversion weir beside intake for conventional hydraulic

flushing of bed load.

A RCC side intake is proposed as the submerged orifice type intake, located immediately

upstream and adjacent to the bed load sluice to withdraw the design discharge of 17.05 m3/s

including the discharge for the flushing. The invert level of the intake is fixed at 1257.60 masl

that the boulder up to 300 mm is allowed to enter through the trash rack of intake and can be

flushed back to the river downstream through gravel trap flushing. The intake will have 4

orifices each 2.3 m high and 2.8 m wide. In front of the intake opening, a coarse trash rack of

300 mm c/c passage gap is placed which covers the span for two openings.

Two hopper shaped gravel trap of 6.15 m width and 6.6 m height each is provided immediately

after intake chamber to trap coarse particles of size greater than 5 mm. The slope of hopper

along the profile starts from 1 m D/S of inlet gate. Immediately after gravel trap, four individual

approach culverts having different length, horizontal bends and slopes are provided to carry

the design discharge up to the settling basin. The shape of the culvert is square with dimension

2.2 m * 2.2 m.

A hopper type buried settling basin with four chambers is proposed on the left bank of Solu

Khola. Each chamber is 85 m long, 9.5 m wide with effective depth of 4.5 m. To collect water

from kholsi, drainage arrangement has been made at the hill side. The water from kholsi in the

main settling area is collected through cascade drop which diverts water to D/S and U/S side

by earth fill slope to the main drain canal. It is a trapezoidal concrete channel of base width 2.5

m and height 1.75m designed to carry the discharge of 15.21 m3/s.

Powerhouse

The proposed powerhouse is located at rock on the right bank of the Dudh Koshi few meters

above the high flood level of the 100 years return period The elevation of the powerhouse was

fixed such that it is free from the risk of flooding at the Dudh Koshi River during the monsoon

season. To ensure safety, flood protection wall near the powerhouse is also designed along the

right bank of Dudh Koshi River. The powerhouse is 54.6 m long, 16.2 m wide and 19.45 m

high with reinforced concrete structural elements in the main building with shear walls, brick

walls, aluminum composite panels (ACP) and CGI sheet roofing.

A 70.0 m long tailrace culvert with sectional dimension 2.00 m wide and 1.90 m high for

separate unit, 4.60 m wide and 1.9 m high for combined unit and 3.55 m wide and 1.9 m high

for section between first and last merge point will pass the design discharge to the Dudh Koshi

river at right bank of the river.

ii. Underground Structures

Headrace tunnel has been proposed as a low pressure tunnel from the surface settling basin to

the surge tank. The total length of the headrace tunnel is 4259.0 m. An adit tunnel of 98 m


15

length is proposed at 200m downstream from the inlet portal. Similarly, outlet adit tunnel of

length 375 m is proposed before the surge tunnel. Headrace tunnel has been proposed as a low

pressure tunnel from the surface settling basin to the surge tank. However, the size of the tunnel

is taken as 4m width and 4.25 m height considering the required height for the vehicle

movement and for the provision of the ventilation.

The dimension of surge tunnel is 4.0 x 4.0 m with a slope length of 372.0m. The surge analysis

shows the maximum surge level is 1272.28masl and maximum down surge level as

1246.78masl.

3.3 Hydro-mechanical works

The penstock pipe is used to convey the water from surge shaft to the turbine. It is an

underground structure. The pipe is provided with the horizontal and vertical tunnel shaft of

diameter 3.8 m and 3.5 m respectively. The penstock pipe diameter varies from 2.5 m to 2.1 m

and finally 1.2 m at the portion of main inlet valve. Likewise the thickness of the penstock pipe

varies from 10 mm to 44 mm. The penstock pipe starts after the surge shaft with an invert level

of 1238.89 having horizontal portion of 20.0 m length and first vertical drop of 226.0 m length.

Likewise the pipe passes through the inclined portion of 717.0 m length, and second vertical

drop of 201.0 m length. After second vertical drop, it runs through an inclined portion of 934.0

m length up to trifurcation. The penstock pipe has varying diameter with varying thickness.

Altogether, the penstock alignment has four bends before trifurcation. The vertical part is

penstock casing with concrete infill and the horizontal part has the support piers at 8 m c/c

spacing as shown in the drawings. There are two adits: one at the location of second drop shaft

and another from the powerhouse site to ease the construction of the penstock pipe. The first

one is 200.0 m long and second one is 325.0 m long.

3.4 Electro-mechanical works

Considering the head and flow available, calculated number of jets, so as to achieve maximum

efficiency with the jet ratio of 12.21was found to be four (4). The overall design has been based

on four (4) numbers of jets. However, number of jet can be changed if the contractor provides

client with enough justification on the design. Pelton turbine with vertical shaft alignment was

selected. The elevation of the turbine axis was set at 647.30 masl. Total no. of turbines is 3

with a capacity of 30400 KW each assuming the efficiency to be 91%.

3.5 Transmission facilities

Power from the powerhouse is evacuated to Lamane, Tingla sub-station through 132 kV double

circuit transmission line of about 10.5 km length, from where it is connected to the national

grid.


16

Other works related to the project

4.1 Equity management

The total project cost will be financed in two ways: bank loan and equity financing in a ratio

of 72.93:27.07. With this ratio, bank loan is 865 crores and equity financing is 321 crores.

Details of this financing is shown in the table below;

Table 6. Total cost

Cost Amount NRS (Crore)

Total Project Cost 1186.00

Bank Loan 865.00

Equity Financing 321.00

Similarly, the equity financing is sub divided as promoters’ equity and initial public offering

in a ratio of 60:40. The detail cost division is shown in table 9 below:

Table 7. Equity Management

Equity Management Amount NRs (Crore) Percentage (%)

Promoters Equity 192.60 60

Initial Public Offering 128.40 40

Total equity financing 321.00 100

Table 8. Participating Banks and Investment Company with percentage financing

Participating Bank Term Loan (Crore) % Financing

Nepal Investment Bank Ltd. 150.00 17.34%

Hydroelectricity Investment & Development Company Ltd. 90.00 10.40%

Rastriya Banijya Bank Ltd 75.00 8.67%

Agricultural Development Bank Ltd. 75.00 8.67%

Nepal Credit and Commerce Bank Ltd. 75.00 8.67%

Century Commercial Bank Ltd. 75.00 8.67%

Sanima Bank Ltd. 75.00 8.67%

NIDC Development Bank Ltd. 75.00 8.67%

Sun Rise Bank Ltd. 75.00 8.67%

Prabhu Bank Ltd. 50.00 5.78%

Civil Bank Ltd. 50.00 5.78%

Total Consortium Financing 865.00 100.00%

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