New Delhi: India’s rooftop solar market could expand to 132 gigawatts (GW) by 2030 from the current installed capacity of 17 GW, with annual installations estimated at 9-15 GW during the period, according to the Indian Solar Manufacturers Association (ISMA), ANI reported.
The association said nearly 115 GW of untapped potential remains in the residential rooftop segment. This potential could create significant demand for domestically manufactured solar cells, modules, inverters and other balance-of-system components.
ISMA’s projections take into account national residential electricity consumption patterns, household housing characteristics and tariff structures offered by distribution utilities. According to the association, the residential rooftop segment has entered a sustained growth phase and is positioned for significant expansion between 2026 and 2030.
An annual installation rate of 9-15 GW could provide a sizeable market opportunity for Indian component manufacturers while supporting efforts to reduce dependence on overseas supply chains.
The report also highlighted the role of the Centre’s PM Surya Ghar Muft Bijli Yojana in improving the affordability of rooftop solar systems. According to ISMA, the scheme has helped extend adoption to regions where installations were previously driven largely by natural economic viability.
The broader reach of the scheme has expanded the consumer base and supported the development of local supply chains, the association said.
ISMA Secretary General Amit Manohar said central government interventions had influenced the development of residential rooftop solar markets across different regions.
“PM Surya Ghar has played an important role in expanding residential rooftop solar adoption, particularly in markets where project economics remain challenging,” Manohar said.
He also stressed the need for greater clarity on the policy framework as the current programme approaches its scheduled end in March 2027.
“As the current programme approaches March 2027, providing early clarity on its next phase, including consideration of PM Surya Ghar 2.0, preferably by December 2026, would help maintain market continuity and provide greater visibility to consumers and industry stakeholders,” he said.
ISMA said continued policy support beyond March 2027 would be important to sustain the deployment momentum in rooftop solar, according to ANI.
The association noted that long-term policy visibility is also necessary for manufacturers to make capital investments, expand production capacity and establish local supply chains across the domestic solar manufacturing ecosystem.
