Tamil Nadu’s rooftop solar subsidy framework was updated in October 2025 to align with the central PM Surya Ghar Muft Bijli Yojana. Eligible households and institutions can combine central and state support for lower upfront cost.
We cover the revised subsidy levels, application process through TANGEDCO and the national portal, and typical payback for residential systems in the state. A good time for Tamil Nadu homeowners to go solar.