Scheme Fuels Rapid Growth in Rooftop Solar

Following the ambitious rollout of the Pradhan Mantri Surya Ghar Muft Bijli Yojana (PMSGY), India's residential rooftop solar sector is seeing rapid growth. This major scheme aims to make solar power accessible and affordable for millions, driving significant change across the industry. Beyond household savings, the PMSGY is reshaping competition and demand across the entire solar value chain, from module manufacturing to installation services.

Market Expansion and Key Beneficiaries

Launched in February 2024, the PMSGY has already spurred a notable increase in residential rooftop solar installations, making up nearly 45% of India's total residential capacity as of July 2025. The scheme targets 30 GW of solar capacity and 10 million households by FY2027, projecting substantial market growth. Analysts forecast the India rooftop solar market to reach 20.84 gigawatts in 2026 and expand to 48.55 gigawatts by 2031, showing a compound annual growth rate of 18.41%.

This demand surge is creating significant opportunities for major players. Companies like Tata Power Solar, Adani Solar, and Waaree Energies, with their extensive installation capacities and nationwide networks, are well-positioned to benefit. Waaree Energies, for instance, holds an order book of Rs 530 billion as of March 2026 and plans to scale manufacturing and expand into battery storage and green hydrogen. Premier Energies is also investing in expanding its integrated solar cell and module manufacturing capacity. The scheme's focus on domestic manufacturing, supported by policies like the Production-Linked Incentive (PLI) scheme, further bolsters local players and aims to reduce import dependence.

Economic viability for end-users is improved by generous subsidies, potentially covering up to 60% of installation costs. The average payback period for a 3 kW system is 3.5 to 4.5 years. India's net metering policies allow consumers to feed surplus electricity back into the grid and earn credits, acting like a virtual battery to further reduce electricity bills. This mechanism makes solar energy more attractive, especially as state-specific net metering rules evolve.

The broader policy environment is also supportive. India has achieved over 50% of its installed capacity from non-fossil fuel sources ahead of schedule. The government's commitment to renewable energy is supported by increased subsidies and a drive to boost domestic manufacturing capabilities. For example, Borosil Renewables saw a significant turnaround, with a 402% surge in EBITDA in FY26, directly linked to government anti-dumping duties on imported solar glass. This policy-driven environment is building a strong foundation for sustained sector growth.

Implementation Challenges and Risks

Despite strong policy support and projected growth, significant implementation hurdles and inherent risks need to be considered. The PMSGY, while popular, has a conversion rate of only 22.7% from applications to completed installations as of July 2025, indicating bottlenecks in financing, vendor capacity, and approval processes. This gap between interest and execution could strain supply chains and installation capabilities, potentially leading to project delays and impacting the scheme's credibility.

Furthermore, the sector's heavy reliance on government subsidies creates vulnerability. Any abrupt policy shifts or changes in subsidy structures could dampen demand and affect companies' financial health. While net metering benefits consumers, inconsistent implementation and approval timelines across states remain a challenge for installers. The rapid expansion of solar capacity also raises concerns about grid stability and the need for increased investment in transmission infrastructure and energy storage solutions, which are currently lagging behind generation growth. Companies like Adani Green Energy faced scrutiny in late 2025 following allegations against its chairman, highlighting the governance risks that can affect even large players in this dynamic sector. Competitive pressures are likely to intensify as more players enter the market, potentially leading to margin compression, especially for those with less efficient operations or higher debt levels.

Outlook for India's Solar Market

The Indian rooftop solar market is set for continued expansion, driven by supportive government policies, declining costs, and increasing consumer awareness. While the PMSGY provides significant momentum, sustained growth will depend on overcoming implementation challenges and ensuring grid integration. Analyst projections show strong annual growth for the sector, with opportunities arising from increasing manufacturing capacity, technological advancements in solar modules and storage, and growing demand from commercial and industrial segments. The trend towards domestic manufacturing, supported by initiatives like PLI, is expected to strengthen the industry's long-term prospects and contribute to India's energy security goals.