Kopili Hydro Power Station was the maiden venture of NEEPCO when it came into existence in 1976.

The Kopili Hydro Power Station is a storage scheme with two Dams to harness the hydro power of Kopili River ( a tributary of Brahmaputra River) and the Umrong stream (a tributary of Kopili River). There are two Dams, one is the Khandong Dam that receives the inflow of Kopili River and the other is the Umrong Dam that receives the inflow of the Umrong stream and also receives the tailrace discharge of Khandong PS & Khandong Stage II PS. The Station is located at Umrangso, Dima Hasao District, Assam. The installed capacity of the Station is 275 MW with a catchment area of 1256 Sq. Km and design head of about 99 m for Khandong PS (50 MW) & Khandong Stage II PS (25 MW) and 326.5 m for the Kopili PS (200 MW).

R&M of Kopili Power Station (200 MW)

The Kopili Power Station (200 MW) is under Renovation and Modernisation w.e.f. 7th October , 2019. The revised annual design energy is 993.8 MU in a 90 % dependable year.