Country’s largest power producer NTPC on Saturday said it has commissioned another 200 megawatt (MW) capacity at its Koldam Hydro Power Project in Himachal Pradesh. “Unit no. 4 of 200 MW of Koldam Hydro Power Project was commissioned on June 12, 2015, at 1950 hours,” NTPC said in a regulatory filing. The total installed capacity of the Koldam project now stands at 800 MW, with that of the Group rising to 44,798 MW, the filing said. The construction of the Koldam project, which started in 2003, was held up because of various environmental and geological issues, leading to a cost overrun of about 20 per cent against the approved investment of Rs 4,527 cr.