India’s Rooftop Solar Boom: Growth & Regional Imbalances

Syllabus: GS3/Renewable Energy; Environment

Context

• Recent analysis by Climate Compatible Futures (CCF) and data from MNRE highlights significant regional disparities in adoption in rooftop solar. 

India’s Rooftop Solar Landscape

• India’s total rooftop solar capacity reached 25.7 GW, with 2.7 GW added in Q1 of 2026 alone, marking a 125% year-on-year growth.
• Gujarat and Maharashtra now carry more rooftop solar than the rest of the country put together, while West Bengal, Odisha and much of the east have barely started.

Reason Behind Rooftop Solar Boom

• PM Surya Ghar: Muft Bijli Yojana (2024): It aims to cover 1 crore households and to provide subsidies up to ₹78,000 for residential rooftop systems.
  • It aims to promote decentralised clean energy generation and to reduce household electricity expenditure.
  • Residential consumers contributed nearly 82% of new rooftop additions in early 2026.
• Strong Ecosystem in Leading States: Major solar rooftop states have developed related infrastructure, easier access to credit, efficient DISCOM and faster net-metering approvals.

Regional Distribution of Rooftop Solar

• Western and Southern Leadership: The top ten states constitute almost 86% of India’s rooftop solar power installations.
  • Important factors include timely government policies, well-developed solar market, better performing DISCOMS, and presence of vendors and financial institutions.
• Eastern Region of India: Eastern states are still struggling due to sufficient sunshine in the region.
  • Main barriers are stressed DISCOMS, insufficient number of installers, lack of credit access, poor awareness among consumers, and delayed approval of net metering systems.
• North-Eastern Region: Deployment of rooftop solar is still low despite increased government support centrally.
  • Important barriers include shortage of vendors, poor utility capabilities, delayed approvals, lack of financing options, and poor public awareness.

Key Issues Hindering Expansion

• Institutional Challenges: Unhealthy financial condition of DISCOMs, delay in getting approvals for net metering, and poor coordination among different state departments.
• Economic Challenges: Lack of access to finance and high initial cost even after subsidy.
• Market Challenges: Insufficient presence of installer in backward areas, and absence of network of after-sales services.
• Social Challenges: Poor knowledge of subsidies and cost savings, and poor consumer confidence.

Path Ahead

• Empowering DISCOMs: State governments must modernize utilities and motivate them to consider rooftop solar installations as their assets.
• Expanding the Installer Base: Motivating the private sector installers to move to underserved eastern and northeastern states.
• Improving Financial Access: Creating new financial arrangements including low-interest loans, pay-as-you-go schemes, and micro-finance.
• Consumer Awareness Campaigns: Huge efforts by the state are required in this regard through Panchayats, municipal corporations, and DISCOMs.
• Timely Approvals for Installations: Single window approach and digital means can help in that.

Source: DTE