The Tamil Nadu Electricity Regulatory Commission issued a comprehensive framework for renewable energy transactions through the Tamil Nadu Electricity Regulatory Commission’s Terms and Conditions for Green Energy Open Access Regulations, 2025. The notification outlines the terms for non-discriminatory access to green power using intra-state transmission and distribution networks. The regulations are designed to facilitate the purchase, sale, and banking of renewable energy by consumers, generators, and traders. Open access is permitted for electricity generated from solar, wind, hybrid, small hydro, biomass, and waste-to-energy projects that utilize non-fossil fuels.