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Solar Loans in Kerala & Tamil Nadu 2026: Interest, Eligibility, Banks

How to finance rooftop solar: PM Surya Ghar concessional loans, bank green loans, EMI example and what to avoid.

By The Solar Daily Editorial TeamPublished 2026-10-02Updated 2026-10-035 min read

Part of the complete guide: Solar subsidy (complete guide)

Quick answer

Banks offer concessional collateral-free loans for rooftop solar up to 3 kW under PM Surya Ghar (around 7% interest, subject to bank terms) and regular loans for bigger systems. Because bills fall by the amount of the EMI or more, solar can be nearly cash-flow neutral.

Loan options

  • PM Surya Ghar linked loans for systems up to 3 kW from participating public-sector and other banks
  • Green / home-improvement loans for larger systems
  • Institutional term loans for schools, hospitals and trusts
  • Agri loans and PM-KUSUM support for pumps

EMI example

Net cost ₹1.2 lakh at 7% over 5 years ≈ ₹2,380/month. A 3 kW system saves about ₹2,200–₹2,900 a month — so the loan is nearly self-funding.

Documents

ID and address proof, electricity bill, bank statements, income proof, installer quotation and PM Surya Ghar application number.

Avoid

  • Loan agents charging an upfront 'processing' fee
  • Paying the installer the full amount before the loan sanction
  • Loans where the 'subsidy' is deducted from the quote but not actually applied
Always verify. Subsidy, tariff and price figures change. Confirm with the official portal, KSEB/TNPDCL and a written quote before paying any advance. Figures here are indicative for South Kerala & Kanyakumari.

Frequently asked questions

Is a solar loan collateral-free?

For eligible small residential systems under the scheme, yes; bank terms apply.

What is the interest rate?

Concessional schemes are around 7% for eligible loans; others follow bank rates.

Can institutions get solar loans?

Yes — term loans and RESCO (pay-per-unit) models are available.

Does The Solar Daily lend money?

No. We assist you in documentation and connect you to bank and NBFC partners.

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