Tamil Nadu’s government releases a three-year Battery Energy Storage System (BESS) policy aimed at expanding grid-scale storage capacity. Across the period, the plan targets deploying 2.5 GW of BESS with 10 GWh of energy capacity. The state’s TNPDC is set to procure BESS capacity aggregating to 2,500 MW/10,000 MWh from eligible BESS projects.
Outlets also highlight how the policy affects solar development. One report notes requirements for new solar and solar-hybrid projects of at least 1 MW to install BESS. Specifically, the BESS discharge power must be equivalent to at least 10% of the project’s installed capacity, and it must support a four-hour discharge duration. Together, the coverage shows both the government’s overall procurement and deployment targets, and the technical obligations placed on qualifying solar and solar-hybrid plants during the policy period.
