India installed 7.1 GW rooftop solar capacity in calendar year 2025, marking a 122% increase compared to 3.2 GW in 2024—according to Mercom India Research’s newly released Q4 & Annual 2025 India Rooftop Solar Market Report.
Residential segment led the installations, accounting for nearly 76% of the capacity addition in 2025. Installations were largely driven by the PM Surya Ghar: Muft Bijli Yojana program.
The industrial, commercial, and government segments accounted for over 18%, 5%, and 1% of the total rooftop capacity addition during the year, respectively.
Installations under the capital expenditure (CAPEX) model accounted for 85% of the year’s installations, while capacity additions under the operational expenditure or renewable energy service company (OPEX/RESCO) model accounted for the remaining 15%.
“Rooftop solar reached an all-time high of 7.1 GW in 2025, more than doubling year over year, driven largely by the PM Surya Ghar program, which accounted for a majority of deployments,” said Raj Prabhu, CEO of Mercom Capital Group. “Strong residential adoption, streamlined subsidy disbursals, and digital approvals accelerated deployment across states.”
Mercom expects installations to grow further in 2026, led by residential systems, with steady demand from the C&I segment. However, ALMM List-II enforcement and rising DCR module prices could lead to higher system costs. “Sustaining growth will depend on maintaining cost competitiveness and ensuring smooth execution as compliance requirements increase,” said Prabhu.
Rooftop solar capacity additions in 2025 were led by Maharashtra (16%), Gujarat (16%), and Uttar Pradesh (15%)
India’s cumulative rooftop solar installations reached 20.8 GW at the end of December 2025. Gujarat remains the leading state for rooftop installations, accounting for almost 25% of cumulative installations, followed by Maharashtra (15%) and Uttar Pradesh (8%).
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