CHEP, a 336 MW project, located on Wangchu river in Chukha district was built by GoI on a turnkey basis at a remarkably low cost of Rs. 246 crores. The GoI fully funded this project with 60 percent grant and 40 percent loan at the interest rate of 5 percent payable over a period of 15 years after commissioning.The project was commissioned during 1986-88. The project has been earning precious revenue for Bhutan through export of electricity to India and has a significant share in the internal revenue generation of the RGoB. With the formation of the Druk Green, CHPCL became an operational unit under Druk Green and is renamed as Chhukha Hydropower Plant (CHP)
Kurichhu Hydroelectric Project
Kurichhu Hydroelectric Project is a run-of-the-river 60 MW project located on Kurichhu river in Mongar district funded by GoI at a revised cost of Rs. 564 crores (60% grant and 40% loan at low interest rate). The project was commissioned during 2001-2002. The project was established with the objective of providing sufficient and reliable power to eight eastern Dzongkhags to bring about fast socio-economic development in the region. The project was formally inaugurated jointly by the Tongsa Penlop his Royal Highness Jigme Khesar Namgyel Wangchuck and Ambassador Sudhir Vyas in April 2006. WAPCOS of India prepared the detailed project report for the Kurichhu Hydroelectric Project and M/s National Hydroelectric Power Corporation (India) Ltd. (NHPC) prepared the pre-construction report.
Tala Hydroelectric Project
A run-of-the-river 1020 MW project on the Wangchu river, downstream of Chukha Hydroelectric Project , funded by GoI (with 60% as grant and 40% as loan at low interest rate) at the revised cost of approx Rs. 4,126 crores. It comprises a 92 m high concrete dam, a 22.2 km long water conductor system (Head Race Tunnel), and underground power house with 6 generating units of 170 MW each, and three 440 KV single-circuit transmission lines to the India-Bhutan border.WAPCOS of India designed the project, in association with Central Electricity Authority, Central Water Commission, Geological Survey of India and other GoI agencies. WAPCOS are also the consultant to the project. All six units were commissioned during 2006-07. Surplus power is exported to India which is major sources of revenue for Bhutan.