Rooftop Solar Capacity Triples as Households Drive Growth

India’s rooftop solar capacity has tripled since 2019, reaching 30.7 gigawatts (GW) by July 2026, as millions of households embrace renewable electricity.

“India’s rooftop solar boom is an opportunity to get ahead of the grid challenge, rather than wait for it to arrive,” said Ruchita Shah, Energy Analyst for Asia at Ember, highlighting the potential of combining rooftop solar with battery storage.

Rooftop installations now account for 19% of India’s total solar capacity of 164.6 GW, up from just 6% in 2019. Residential systems contribute 14.9 GW across five million households, supported by a government subsidy programme launched in 2024. Gujarat and Maharashtra lead the expansion, together accounting for nearly 45% of installed rooftop capacity. Adding household batteries could further strengthen the transition by storing surplus daytime electricity for evening use, potentially reducing daytime solar exports by 85–90%. An expansion of battery subsidies to five million households could create an estimated 15–25 gigawatt-hours of distributed storage capacity, making renewable electricity more flexible and reducing pressure on the grid.