NHPC’s Parbati-III Power Station is a run of the river scheme having a 43m high rockfill dam, underground Power House and 10.58 km long water conductor system. A net head of 326 meter is utilized to run four vertical Francis turbines with an installed capacity of 520 MW (4×130 MW). The power plant is designed to generate 1963.29 Million Units annually. The power generated from the Parbati-III Power Station is distributed to beneficiary states i.e. Himachal Pradesh, Jammu & Kashmir, Punjab, Uttarakhand, Uttar Pradesh, Haryana, Delhi, Rajasthan and Union Territory of Chandigarh. The Power Station is supplying 13% free power to home state i.e. 12% as home state share and 1% for Local Area Development fund. The completion cost of the project is around Rs 2600 crore and as on 30.09.2016 the total power generation is 1880 MU with revenue realization of Rs 816 crore.
With commencement of generation from four 200 MW units, NTPC- Koldam has achieved capacity of 800 MW and provides peaking capacity to the Northern grid. It shall annually generate 3054 GWh electricity at 90% dependable year basis. Twelve percent of the electricity generated from Koldam is being supplied to the home state Himachal Pradesh free of cost while 1 percent to the state on account of Local Area Development fund. All the Project Affected Families are being provided 100 units of electricity every month free of cost which accounts for 0.62 percent of the total generation. Thus a total 13.62 percent of electricity generated from the plant is supplied free of cost to Himachal Pradesh, remaining power supplied to other beneficiaries namely Delhi, Haryana, Punjab, Rajasthan, Uttar Pradesh, Himachal Pradesh, Jammu & Kashmir, Uttrakhand and Chandigarh.
SJVN’s Rampur Project (412MW) in Kullu district will be operated in tandem with Nathpa Jhakri Hydro Power Station (HPS). This project will provide 13 percent free power to the state of Himachal Pradesh.