India, July 18 -- Tata Power Renewable Energy (TPREL), a subsidiary of Tata Power Company, has signed its first Battery Energy Storage Purchase Agreement (BESPA) with NHPC.The project, secured under NHPC's BESS Tranche-I tender through a competitive bidding route for Kerala State Electricity Board Limited being the end user of the Battery Energy Storage System (BESS) asset, involves setting up a 30 MW / 120 MWh battery storage system at the 220 kV substation in Area code, Kerala.The project will play a vital role in addressing peak power demand, enhancing grid flexibility, and enabling seamless integration of renewable energy in Kerala. It is part of NHPC's broader initiative to develop 125 MW / 500 MWh of standalone battery storage capacit...