"The Unit-I, II, III and IV of 200 MW each of Koldam hydro electric power project is declared on commercial operation with effect from July 18, 2015," National Thermal Power Corporation Limited (NTPC) said in a BSE filing.
With this, the total commercial capacity of the project has become 800 MW and that of NTPC Group - 43,943 MW, it said.
The Koldam hydro power project is located in Mandi district of Himachal Pradesh.
It will supply electricity to Delhi, Haryana, Punjab, Rajasthan, Uttar Pradesh, Himachal Pradesh, Jammu & Kashmir and Chandigarh.