India’s rooftop solar capacity could grow significantly to 2030
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The Indian Solar Manufacturers Association (ISMA) reported that India may add between 9 and 15 gigawatts (GW) of residential rooftop solar capacity each year from 2026 to 2030.
ISMA estimates the total potential for residential rooftop solar in India at 132 GW, with approximately 115 GW still needing installation. As of June 30, 2026, India had 30.1 GW of grid-connected rooftop solar, and the PM Surya Ghar: Muft Bijli Yojana program had already added 13.5 GW by July 2026.
The PM Surya Ghar: Muft Bijli Yojana program is driving the growth of residential solar adoption and supporting demand for domestically produced solar components. ISMA found that about 8 GW of potential residential solar installations are economically viable without subsidies, particularly in areas with high electricity costs. However, the remaining potential installations still require support from the program.
ISMA suggests that continuing the PM Surya Ghar program beyond March 2027, and ideally announcing a second phase by December 2026, will be crucial for maintaining growth and providing clarity to consumers and businesses. The association based its estimates on national electricity consumption data, government housing surveys, and electricity tariffs from distribution companies.
