Residential solar financing in India: lender ecosystem matures in 2026
Indian residential solar financing crossed ₹4,800 crore disbursed in 2025, growing 65% year-over-year. Public sector banks (SBI, BoI) now offer rooftop solar loans at 8.5–9.5% with 7-year terms. NBFC and fintech players (Mufin Green, GoBOLT) target the unbanked segment with smaller-ticket financing.
In 50 words: Indian residential solar financing crossed ₹4,800 crore disbursed in 2025, growing 65% year-over-year. PSU banks now offer rooftop solar loans at 8.5–9.5% with 7-year terms. NBFCs and fintech players target unbanked customers with smaller-ticket financing. Financing availability is no longer the binding constraint on adoption.
The lender landscape
Residential rooftop solar financing in India by lender type:
- PSU banks (SBI, BoI, PNB, Canara): 55% of disbursement, ticket sizes ₹1–10 lakh, terms up to 10 years
- Private banks (HDFC, ICICI, Axis): 25% of disbursement, similar structure with faster processing
- NBFC / specialised green finance (Mufin Green, GoBOLT, Renew Power Finance): 15%, more flexible underwriting
- Vendor financing (installer-arranged): 5%, growing fast through tier-2 cities
Why the surge
Three forces converged:
- PM Surya Ghar subsidy structure. Direct benefit transfer + balance financed by loan = lower customer outlay, predictable bank exposure.
- PSU bank product standardisation. SBI's standardised rooftop solar loan product replicated across PSU banks reduces processing friction.
- Module pricing. Lower equipment cost reduces ticket size into bank-comfortable ranges.
Typical financing structure
For a 5 kW residential rooftop in India:
- System cost: ₹2.5–3.0 lakh
- PM Surya Ghar subsidy: ₹78,000 (3 kW slab)
- Customer outlay: ₹50,000–80,000
- Loan amount: ₹1.5 lakh
- 7-year EMI at 9% interest: ~₹2,400/month
- Customer monthly bill savings: ₹2,800–3,500
- Net positive cash flow from day 1
What still limits scaling
- Tier-3 and rural underwriting. PSU banks remain cautious in tier-3 cities and rural markets where credit assessment infrastructure is thinner.
- Vendor financing standardisation. Vendor-arranged financing varies wildly in terms — needs consumer protection standards.
What to watch next
The RBI's expected guidelines on rooftop solar as priority sector lending (under discussion, expected H2 2026) could materially lower bank cost of capital for this product, passing through to lower retail interest rates.
Researched and drafted with AI assistance; reviewed and edited by the named editor within 24 hours of draft.