The Satluj Jal Vidyut Nigam Limited - SJVN (formerly Nathpa Jhakri Power Corporation Limited –NJPC) was incorporated on May 24, 1988 as a joint venture of the Government of India ( GOI ) and the Govt. of Himachal Pradesh ( GOHP ) to plan, investigate, organize, execute, operate and maintain Hydro Electric power projects in the Satluj river basin in the state of Himachal Pradesh and at any other place.
The present authorized share capital of SJVN is Rs 4500 crores. The debt equity ratio of the Nathpa Jhakri Hydro Electric project ( NJHEP ) is 1:1 and the equity- |
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sharing ratio of GOI and GOHP is 3:1 respectively.In addition to the financial assistance from the World Bank, SJVN has also been financed as loan by a consortium of European Banks and Power Finance Corporation ( PFC ).
The Project
The 1500MW, Nathpa Jhakri Hydro Electric Project NJHEP ( the largest underground hydro electric project in the country ) is the first project undertaken by SJVN for execution.
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Project's Salient Features
- A 62.50m. high concrete Dam on Satluj river at Nathpa to divert 405 cumecs of water through four intakes.
- An underground De-silting Complex, comprising four chambers , each 525m long, 16.31m wide and 27.5m deep, which is the largest underground complex for the generation of hydro power in the world.
- A 10.15m dia. And 27.39 km long Head Race Tunnel which is one of the longest power tunnels in the world, terminating
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- Three circular steel-lined Pressure Shafts, each of 4.9m. dia. and 571m to 622m. length, bifurcating near the Power House to feed six generating units.
- An underground Power House with a cavern size of 222m. X 20m. X 49m. having six Francis Turbine Units of 250MW each to utilize a design discharge of 405 cumecs and a design head of 428m.
- A 10.15m. dia and 982m. long Tail Race Tunnel to discharge the water back to the river Satluj.
Project Benefits
Besides the social and economic upliftment of the people in its vicinity, on commissioning the 1500 MW NJHEP will generate 6950 MU of electric energy in a 90% dependable year. It would also provide 1500MW of valuable peaking power to the Northern Grid.
Out of the total energy generated at the bus bar, 12 percent is to be supplied free of cost to the home state i.e Himachal Pradesh. From the remaining 88% energy generation, 25% is to be supplied to HP at bus bar rates. Balance power allocated to different states / Uts of Northern Region is as under.
| Sl No. |
State |
Allocation (in MW) |
Present reallocation (in MW) as on July 04 |
| 1 |
Haryana |
64 |
319 |
| 2 |
Himachal Pradesh |
547 |
37 |
| 3 |
Jammu & Kashmir |
105 |
-- |
| 4 |
Punjab |
114 |
152 |
| 5 |
Rajasthan |
112 |
217 |
| 6 |
Uttar Pradesh |
221 |
221 |
| 7 |
Uttaranchal |
38 |
-- |
| 8 |
Chandigarh |
08 |
08 |
| 9 |
Delhi |
142 |
397 |
| 10 |
Unallocated quota at the disposal of Central Govt. |
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| Total |
1500 |
1500 |
The allocation of Himachal Pradesh includes :
- 12% free power on account of the distress caused to he State on account of submergence, dislocation of population, and
- 25% share ( i.e 330 MW ) in the remaining 88%, corresponding to the state’s agreed share of 25% equity contribution to the project
Nathpa Jhakri Project Commissioning Dates
| Sl No. |
Description |
Syncronisation |
Commercial Generation |
| 1 |
Unit 5 |
Sep 29, 2003 |
Oct 03, 2003 |
| 2 |
Unit 6 |
Nov 23, 2003 |
Jan 02, 2004 |
| 3 |
Unit 4 |
Jan 22, 2004 |
Mar 30, 2004 |
| 4 |
Unit 3 |
Feb 13, 2004 |
Mar 31, 2004 |
| 5 |
Unit 2 |
Mar 09, 2004 |
May 06, 2004 |
| 6 |
Unit 1 |
Mar 31, 2004 |
May 18, 2004 |
Project Cost
On completion the project is estimated to cost Rs. 8632 crore.
Funding Plan
The project is being financed on 1:1 debt equity ratio. The equity portion is to be shared between the Govt. of India ( GOI ) AND Govt. of Himachal Pradesh ( GOHP) in the ratio 3:1 respectively.
Future Project
RAMPUR HYDRO ELECTRIC PROJECT ( RHEP)
The Rampur Hydro Electric Project ( 439 MW) utilizing the tail race of waters of the ongoing 1500MW Nathpa Jhakri Hydro Electric Project ( NJHEP) is a run of the river scheme, works for which have already been commenced by SJVN.
Other Projects
SJVN contemplates to become a 4000 MW company by the end of eleventh plan for which a number of projects in the states of Himachal Pradesh and Uttaranchal shall be taken up for execution.
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