India added 6.6 GW of rooftop solar capacity in the fi rst half of calendar year 2026, up 136% from 2.8 GW during the same period in 2025, according to Mercom India’s Q2 and H1 2026 India Rooftop Solar Market Report.
Installations reached 3.8 GW in the second quarter, rising 41% from 2.7 GW in Q1 and 136% year-on-year from 1.6 GW in Q2 2025.
Rooftop solar accounted for 33% of India’s total solar installations during the quarter.
Growth was largely driven by the government’s Pradhan Mantri Surya Ghar Muft Bijli Yojana (PM Surya Ghar) program.
By June 2026, rooftop solar systems had been installed in nearly 4.5 million households, reaching about 45% of the program’s target of 10 million households.
Residential projects dominated Q2 installations, accounting for 84% of new capacity.
Industrial projects contributed 10%, commercial installations 5% and government projects 1%.
The capex model represented the majority of quarterly additions