North Eastern Electric Power Corporation Limited

(A Government of India Enterprise)

  A Profile

INTRODUCTION
 

Located on the River Kopili in the North Cachar Hills District of Assam, the Kopili Hydro Electric Project was the maiden venture of NEEPCO when it came into existence in 1976.

Khandong And Kopili POWER STATION:

The first stage of Kopili Hydro Electric Plant has two numbers of dam and dyke systems for creating two reservoirs, one on the Kopili River and the other on the Umrong stream, a tributary of the Kopili. Water from the Kopili reservoir is utilised in the Khandong power station through a 2759 metre long tunnel to generate 50 MW (2 X 25 MW) of power. The tail water from this powerhouse is led to the Umrong reservoir. The water from Umrong reservoir is taken through a 5473 metre long tunnel to the Kopili power station to generate 100 MW (2 X 50 MW) of power.

The first stage extension of the Plant envisaged setting up two additional 50 MW units at Kopili power station, provisions for which were already kept during the first stage development of the project. The Units III and IV under this extension scheme were commissioned in March, 1997 and June, 1997 respectively. The total installed capacity of the Kopili power station thus went up to 200 MW and that of the project as whole to 250 MW. The raising of the Umrong reservoir by 7.6 m was taken up to meet the demand for more water for two additional 50 MW units of first stage extension.

KHEP Stage II POWER STATION:

The second stage of the Kopili Hydro Electric Plant involves a powerhouse to generate additional 25 MW of power by utilising water from the Khandong reservoir through a 481 m long water conductor system, provision of which was kept as a by-pass conduit from the surge shaft in the Khandong tunnel. The water from the second stage powerhouse will go to the Umrong reservoir for utilisation in the Kopili power station

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