The Tamil Nadu Electricity Regulatory Commission (TNERC) has approved Tamil Nadu Green Energy Corporation Ltd. (TNGECL)’s plan to procure 1,000 MWh of battery energy storage systems (BESS), marking one of India’s largest state-led storage deployments. The decision, issued on December 4, 2025, authorizes long-term procurement under a 12-year build–own–operate framework, supported by the Union Government’s Viability Gap Funding (VGF) program. Project Overview Capacity: 500 MW a