Untitled - Ministry of Power
Untitled - Ministry of Power
Untitled - Ministry of Power
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Tehri Hydro Development Corporation<br />
(THDC)<br />
BACKGROUND<br />
THDC, a Joint Venture Corporation <strong>of</strong> the Govt.<br />
<strong>of</strong> India and Govt. <strong>of</strong> U.P., was incorporated as<br />
a Limited Company under the Companies Act,<br />
1956, in July’88, to develop, operate and maintain<br />
the Tehri Hydro <strong>Power</strong> Complex and other Hydro<br />
Projects.<br />
THDC is presently responsible for the<br />
implementation <strong>of</strong> the Tehri Hydro <strong>Power</strong><br />
Complex (2400 MW), comprising the following<br />
components:<br />
Tehri Dam & Hydro <strong>Power</strong> Plant (HPP) :<br />
260.5 m high Rock Fill Dam (Stage-l <strong>of</strong> the<br />
Complex), with 1000 MW underground Hydro<br />
<strong>Power</strong> Plant having four conventional Turbine<br />
Generator sets <strong>of</strong> 250 MW each (Stage-l <strong>of</strong><br />
the Complex); Koteshwar Hydro Electric<br />
Project (HEP) : 97.5 m high Concrete Dam<br />
and 400 MW Hydro <strong>Power</strong> Plant at<br />
Koteshwar, 22 Km. downstream <strong>of</strong> Tehri.<br />
Koteshwar Project is a run-<strong>of</strong>f-river scheme<br />
with minimum diurnal storage. The<br />
Koteshwar Project will regulate water<br />
releases from Tehri Reservoir for irrigation<br />
purposes.<br />
Tehri Pumped Storage Plant (PSP) :Tehri<br />
PSP scheme having four reversible units <strong>of</strong><br />
250 MW each has been envisaged to<br />
generate 1000 MW <strong>of</strong> peaking power for<br />
enhancing system reliability and also to<br />
provide balancing load to the thermal base<br />
generation during <strong>of</strong>f peak hours. The<br />
reservoir created by the Tehri Dam would<br />
function as upstream reservoir for this<br />
Project, while the Koteshwar Dam reservoir<br />
shall be the lower reservoir.<br />
The Corporation has an authorised share capital<br />
<strong>of</strong> Rs.3000 Cr. The cost <strong>of</strong> the Project is being<br />
shared in the ratio <strong>of</strong> 75:25 (equity portion) by<br />
Govt. <strong>of</strong> India & Govt. <strong>of</strong> U.P. for <strong>Power</strong><br />
Component, while the Irrigation Component (20<br />
<strong>of</strong> Stage-l cost) is to be entirely funded by the<br />
Govt. <strong>of</strong> U.P. The Govt. in March, 1994 approved<br />
the implementation <strong>of</strong> Tehri Dam & HPP (1000<br />
MW) as Stage-l <strong>of</strong> Tehri <strong>Power</strong> Complex; the<br />
other components were to be implemented<br />
subsequently as per the availability <strong>of</strong> resources.<br />
The Tehri Stage-l is currently at an advanced<br />
stage <strong>of</strong> commissioning.<br />
The 400 MW Koteshwar HEP, was approved by<br />
Govt. in April,2000 and the work is in progress.<br />
Chapter - 21.8<br />
The updated Detailed Project Report (DPR) for<br />
Tehri PSP(1000 MW) has been prepared by<br />
M/s EdF and M/s CoB , French Consultants<br />
under French Aid. Based on the updated DPR,<br />
the updated Cost Estimate prepared by THDC,<br />
has been cleared by CEA. The proposal has<br />
been recommended for PIB approval in the pre-<br />
PIB meeting held on 10.10.2002. The PIB<br />
approval is under process.<br />
THDC and Government <strong>of</strong> Uttaranchal have<br />
signed MoU for implementation <strong>of</strong> 340 MW<br />
Vishnu Gad Pipalkoti Project on Alaknanda river.<br />
MOEF/MOP has conveyed approval for taking<br />
up stage-1 activities viz. Survey & Investigation<br />
and preparation <strong>of</strong> Feasibility Report.<br />
BENEFITS<br />
The benefits from the Tehri Hydro <strong>Power</strong><br />
Complex are as under:<br />
- Addition to the installed : 2400 MW<br />
generating capacity in<br />
the Northern Region<br />
(1000 MW on completion<br />
<strong>of</strong> Tehri Stage-l)<br />
- Annual energy availability : 6200 MU<br />
(Peaking) (3568 MU on<br />
completion <strong>of</strong> Tehri Stage-l)<br />
Irrigation (additional)<br />
2.70 Lac. ha.<br />
- Stabilisation <strong>of</strong> existing : 6.04 Lac. ha.<br />
irrigation (besides above)<br />
- 300 Cusecs (162 Million Gallons Per Day)<br />
<strong>of</strong> drinking water for Delhi which will meet<br />
the requirements <strong>of</strong> about 40 Lac. people.<br />
- In addition, 200 Cusecs (108 Million Gallons<br />
Per Day) <strong>of</strong> drinking water for towns and<br />
villages <strong>of</strong> U.P. which will meet the<br />
requirement <strong>of</strong> 30 Lac. people.<br />
Integrated development <strong>of</strong> Garhwal region,<br />
including construction <strong>of</strong> a new hill station town<br />
with provision <strong>of</strong> all civic facilities; improved<br />
communication, education, health, tourism,<br />
development <strong>of</strong> horticulture, fisheries, and<br />
afforestation <strong>of</strong> the region.<br />
TEHRI DAM & HPP, STAGE-1 (1000 MW)<br />
Tehri Dam Project is a multipurpose hydro Project<br />
under construction on the river Bhagirathi in<br />
Uttranchal State. Tehri Hydro <strong>Power</strong> Plant (Stagel)<br />
includes the construction <strong>of</strong> the 260.5m high<br />
rockfill Dam, spillway structures, power tunnels<br />
and an underground power cavern with an installed<br />
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