The Bulk Power Consumers of NHPC in North India are the power utilities belonging to the states of Haryana, Punjab, Himachal Pradesh, Uttar Pradesh, Uttaranchal, Rajasthan, Delhi and J&K and Union Territory of Chandigarh. These states are being supplied power from Baira Siul, Salal-I & II, Tanakpur, Chamera-I, Chamera-II and Uri Power Stations. In the Eastern Region, Rangit Power Station is supplying energy to the states of West Bengal, Sikkim, Bihar, Jharkhand and Damodar Valley Corporation. In the North-Eastern Region, Loktak Power Station is supplying energy to the states of Assam, Manipur, Meghalaya, Tripura, Nagaland, Arunachal Pradesh and Mizoram.

Since commencing of commercial generation in 1982, the Energy sales and revenues of the corporation have grown significantly. The Energy sales from all operating projects of the Corporation during the last 21 years has risen from Rs. 228.60 Million in the year 1982-83 to Rs. 16682.7 Million in the year 2004-2005 (prov.) Year-wise details of sales after deduction of advance against depreciation since 1982-83 are given below :-