SJVN, formerly known as Satluj Jal Vidyut Nigam, is an Indian public sector undertaking in the Navratna Category which is involved in hydroelectric power generation and transmission.

It was incorporated in 1988 as Nathpa Jhakri Power Corporation, a joint venture between the Government of India and the Government of Himachal Pradesh.

[4][5] The company has a total operating hydropower capacity of 1972 MW through its three hydropower plants—Nathpa Jhakri and Rampur and Naitwar Mori.

[6][7] Beginning with a single project and single state operation, India’s largest 1500 MW Nathpa Jhakri Hydro Power Station in Himachal Pradesh, the company has commissioned twelve generation projects totaling 2466.5 MW of installed capacity and 86 km 400 KV Transmission Line.

Apart from India, SJVN also has under-construction hydroelectric projects in Nepal and Bhutan.