Jaypee Karcham Hydro Corporation Limited (JKHCL), a subsidiary of Jaiprakash Associates Limited
Karcham Wangtoo Hydroelectric Project is envisaged as run-of-the-river development on River Satluj. The project will utilise the head available between the tail waters of Baspa Hydroelectric. Project Stage-II and head waters of Nathpa-Jhakri Hydroelectric Project.
The project’s reach is between Karcham and Wangtoo villages in Kinnaur district of Himachal Pradesh State of India, just upstream of Nathpa-Jhakri Hydroelectric Project presently under construction. Nearest broad gauge railway station is Kalka under Northern Railway. The nearest airport to the project site is Shimla, which is 210 km from Karcham Wangtoo site. Airport is connected to Project site by paved road. Landslides are expected in monsoon, which blocks the road temporarily.
Scope of Works
The project envisages a concrete gravity dam about 43 m high above the river bed (approx. 98 m high above the deepest foundation level). The dam will have 6 sluice spillway bays of size 9m (W) x 9m(H) . The other main component of the Project are: 10.48 m diameter, 17.2 km long head race tunnel, 4.75m dia. 4 nos. pressure shafts, an underground power-house with 4 x 250 MW installed capacity, transformer hall and 909 m long 10.48 m dia tail race tunnel. The diversion of river is envisaged by construction of a Diversion tunnel.
Nature of Contract
Own Project on Build-Own-Operate (BOO) basis.