India’s flagship Pradhan Mantri Surya Ghar Yojana (PMSGY) has given a major push to the country’s residential rooftop solar (RTS) sector, adding nearly 4.9 gigawatts (GW) of new capacity in just over a year since its launch. Yet, according to a new report by the Institute for Energy Economics and Financial Analysis (IEEFA) and JMK Research & Analytics, challenges in financing, supply chains, and consumer awareness continue to slow progress toward national targets.
The report, Advancing Residential Rooftop Solar Adoption in India under PM Surya Ghar Yojana, notes that as of July 2025, over 57.9 lakh households have applied for rooftop solar systems under the scheme. Despite this surge — a fourfold rise in applications since March 2024 — only 22.7% have translated into actual installations.
“PMSGY has steadily expanded its policy framework to speed up residential rooftop solar adoption. Since 2024, it has rolled out a nationwide capacity-building programme to train over three lakh people and help vendors, utilities and financiers upskill,” says, Jyoti Gulia, Founder, JMK Research.
Gujarat, Kerala Lead the Way
Gujarat has emerged as the clear front-runner, boasting 1,491 MW of installed residential rooftop capacity — the highest in the country. Maharashtra, Uttar Pradesh, Kerala, and Rajasthan follow, together accounting for more than 77% of total installations under the programme.
These states’ success is credited to their mature solar ecosystems, strong vendor bases, and high consumer awareness. Gujarat and Kerala, for instance, have achieved conversion ratios of over 65%, far above the national average.
However, Kerala’s success has been uneven. As highlighted in an EdPublica investigation — Why Kerala Has Struggled to Replicate Perinjanam’s Solar Success — the state’s progress has been shaped by strong community-led models like Perinjanam’s solar initiative, but replication across districts has faced institutional and financial hurdles. Local leadership and decentralised governance, experts argue, remain key to scaling up such success stories statewide.
Financing, Awareness, and Supply Chain Barriers
Despite the scheme’s momentum, several bottlenecks remain. The report highlights that low consumer awareness of financing options, complicated loan procedures, and technical glitches in the grievance redressal system hinder wider adoption.
“However, low consumer awareness and access to finance remain significant barriers to the adoption of rooftop solar. Outdated perceptions of high upfront costs and maintenance persist, especially in rural areas,” says Prabhakar Sharma, Senior Consultant, JMK Research.
Fragmented supply chains for critical components such as solar panels, inverters, and mounting structures have also caused project delays.
“Establishing clear, time-bound rooftop solar capacity targets at the state level is essential for creating a coherent vision and ensuring effective policy execution,” Vibhuti Garg, Director, IEEFA – South Asia, points out.
Need for Stronger Local Implementation
The report notes that although a grievance redressal mechanism has been set up under PMSGY, its effectiveness remains limited. “PMSGY should establish a district-level escalation matrix so that subsidy disbursement delays, incorrect data entries or portal malfunctions can be routed beyond the DISCOM or portal level,” Aman Gupta, Research Associate, JMK Research says.
Analysts recommend creating state and district facilitation cells to guide consumers through the application and subsidy process, along with extensive public awareness campaigns to educate households about long-term savings from rooftop solar.
Standardisation and Plug-and-Play Solutions
The report stresses the need for standardised rooftop solar kits that integrate panels, inverters, and cables into ready-to-install packages.
“The rooftop solar market continues to face fragmented quality and weak end-to-end guarantees, challenges that standardised plug-and-play solutions can resolve,” Prabhakar Sharma adds.
Promoting the commoditisation of rooftop systems, the authors argue, can help speed up installations and minimise delays.
Beyond Subsidies: Building a Solar-Ready Ecosystem
While the central government has disbursed over INR 9,280 crore (US$1.05 billion) in subsidies so far — just 14% of the total allocated under PMSGY — experts caution that subsidies alone won’t ensure success.
“The long-term success of PMSGY hinges not only on the provision of subsidies but also on its ability to institutionalise streamlined digital processes, standardised product solutions, and consumer-centric support systems,” according to the Report authors’ conclusion.
To meet the ambitious 30GW rooftop solar target by FY2027, India will need to bridge the financing gap, build local capacity, and simplify consumer experiences — transforming rooftops across urban and rural India into decentralised clean energy generators.