It was incorporated in July’88 to develop, operate and maintain the Tehri Hydro Power Complex and other Hydro Projects. THDC India Limited is a Mini Ratna Category-I Enterprise.
At present, the company has four power plants in operation namely Tehri Dam (1000 MW), Koteshwar Dam (400 MW), a 50 MW Wind project in Patan (Gujarat) and a 63 MW Wind project in Dwarka (Gujarat). In addition, more than 10 projects are under various stages of construction. Tehri PSP (1000 MW) and Vishnugad-Pipalkoti HEP (444 MW) are in the advanced stage and are expected to commission by 2024. THDCIL has also ventured into thermal power generation with its 1320 MW Thermal Power project coming up near Dussehera village which is near Khurja, District Bulandshahr, Uttar Pradesh. The project is at an advanced stage and is expected to be commissioned by 2024.
THDC signed MOU with the Government of Rajasthan to develop 10,000 MW solar parks in the state. THDC is also entrusted to develop 1200 MW Kalia-II and 1750 MW Demwe(Lower) HEP in the Lohit basin of Arunachal Pradesh.