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HBPCL<br />
(KWHEPS)<br />
The Karcham Wangtoo Hydroelectric Plant is a 1,000 megawatts<br />
(1,600,000 hp) run-of-the-river hydroelectric power station on the Sutlej<br />
River in Kinnaur district of Himachal Pradesh, India. The dam and<br />
power station are located between the villages of Karcham and<br />
Wangtoo where the plant also gains its name. first generator was<br />
commissioned in May 2011, the second in June and the final two in<br />
September.The 98 m (322 ft) tall dam at Karcham<br />
(31°30′00.26″N 78°10′39.54″E) diverts a substantial portion of the Sutlej<br />
into a 10.48 m (34.4 ft) diameter and 17.2 km (10.7 mi) long headrace<br />
tunnel to the underground power station downstream at Wangtoo. At<br />
the station, the water powers four 250 MW Francis turbine-generators<br />
before it is sent back into the Sutlej via a 1.2 km (0.75 mi) long tailrace<br />
tunnel. The difference in elevation between the dam and the power<br />
station affords a gross hydraulic head of 298 m (978 ft).<br />
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