Solar Loan Interest Rates India 2026

When a customer says "solar lagna to chahiye, lekin paisa nahi," that's your cue, not your roadblock. India's banking system now offers solar-specific loans at rates that make the payback math work for almost every rooftop segment. As a scaling EPC owner, knowing these numbers cold lets you close fence-sitters on the spot instead of watching them disappear into a competitor's pipeline.

This guide cuts through every major bank and NBFC offering solar finance in 2026, gives you the EMI-per-lakh you need to quote on the fly, and shows you exactly how to use financing as a sales close, not just an afterthought.

The numbers above will change how your sales boys handle the "budget" objection. Read on for the full bank-by-bank breakdown, the green finance options your commercial clients may not know exist, and the Financing-First Close framework that Rohit's team at a 12-person Surat EPC uses to convert fence-sitters in one call.

Why solar loan rates matter to your EPC business

India's residential solar market added over 2.5 GW of rooftop capacity in FY 2024-25, according to MNRE (Ministry of New and Renewable Energy). That growth is not happening on cash purchases alone. Roughly 40–50% of PM Surya Ghar Muft Bijli Yojana installations are being partly financed through bank loans, per data shared on the PM Surya Ghar National Portal.

For your EPC, this means two things. First, if you cannot explain EMI options in 60 seconds, your competitor will. Second, your gross margin is protected when the customer is financing, a customer who is spreading cost over 7 years cares less about squeezing your quote by ₹5,000 than a cash buyer does. Financing shifts the conversation from "how much is the system?" to "what is my monthly outgo?", and that is a much better question for an EPC.

If you want to understand how to position this math inside a proposal, see our guide on how to pitch PM Surya Ghar to customers.

Public-sector bank solar loan rates in 2026

Public-sector banks (PSBs) offer the cheapest solar loan rates in India because they are mandated to participate in PM Surya Ghar Muft Bijli Yojana's concessional lending programme. The Indian Renewable Energy Development Agency (IREDA) provides refinancing to participating banks, which keeps their cost of funds low and gets passed on as lower interest rates to end consumers.

Here is the detailed comparison across all major public-sector banks. EMI per ₹1 lakh is calculated at the stated rate for the standard residential tenure.

Private bank and NBFC solar loan rates in 2026

Private banks and non-banking finance companies (NBFCs) charge higher rates but often disburse faster and require less paperwork than PSBs. For a customer who needs the system installed next month, say, a commercial client with a critical billing cycle, an NBFC's 7-day disbursement may be worth the extra 2–3% interest.

IREDA and green finance for C&I solar projects

The residential segment dominates the conversation, but your commercial and industrial (C&I) clients have access to a different financing universe entirely. IREDA, the nodal agency for renewable energy financing under the Ministry of New and Renewable Energy, offers direct term loans for projects above 250 kW at rates starting at 7.50% per annum.

For a 500 kW rooftop on a textile factory in Surat, where your project value could touch ₹2–2.5 crore, this rate difference compounds significantly. At IREDA's 7.50% vs a private NBFC's 12.00% over 12 years, the C&I client saves approximately ₹45–55 lakh in total interest on a ₹1.5 crore loan.

The other instrument to know: Green Bonds. Several Indian banks now offer green deposit or green bond structures where the proceeds are earmarked for renewable energy lending. This is more relevant if your EPC is structuring a large off-taker deal or a group housing society project, because the green bond yields are sometimes used to offer blended lower rates to borrowers. SEBI's green bond framework governs these instruments in India.

How PM Surya Ghar bank loans actually work, step by step

The PM Surya Ghar Muft Bijli Yojana's bank loan component is a subsidy-linked, collateral-light loan. Here is the actual process a customer goes through, which you as an EPC need to understand to handhold them:

1. 1

   Customer registers on PM Surya Ghar Portal

   The customer creates an account at pmsuryaghar.gov.in using their Aadhaar, PAN, and electricity consumer number. This generates a unique application ID that banks need to process the loan.

2. 2

   Bank loan application submitted (simultaneously or after)

   The customer approaches their home bank (or SBI, BoB, Canara) with the portal application ID, income documents (last 3 months salary slip or ITR for self-employed), and 6-month bank statement. PSBs approve up to ₹5 L without income proof for existing account holders.

3. 3

   DISCOM technical feasibility approval

   The local DISCOM, DGVCL in Gujarat, MSEDCL in Maharashtra, BESCOM in Bengaluru, inspects the meter and provides a feasibility letter. This usually takes 7–21 days and is the biggest bottleneck for most EPCs.

4. 4

   Installation by empanelled vendor (your EPC)

   The bank disburses the loan amount directly to your EPC account (minus the subsidy that will arrive separately from MNRE via the customer). Installation and commissioning happen once the bank transfer is confirmed.

5. 5

   Subsidy flows to customer's bank account

   After net metering is commissioned and inspection is done, MNRE releases the central subsidy directly to the customer's linked bank account within 30 days. The customer then prepays the loan principal by that amount, reducing the outstanding loan balance.

For a deeper dive on subsidy disbursement timelines, see the PM Surya Ghar disbursement timeline guide, and for which subsidy slab applies to your customer's system size, see PM Surya Ghar subsidy slabs.

The Financing-First Close, your proprietary sales framework

Here is the framework Rohit's EPC has been using to close fence-sitters without discounting. The idea is simple: lead with EMI before you lead with system price.

The Financing-First Close works in three moves:

Move 1, Anchor to the monthly outgo, not the project cost. When a customer says "₹2 lakh feels like too much," do not defend the price. Say: "Let me show you what you actually pay per month." Pull up SBI's 7.65% rate on a 7-year tenure. For a ₹1.20 lakh net cost after subsidy, the EMI is ₹1,860/month. Their current electricity bill is ₹2,800/month. "Your solar will cost you less than your current bill, and at the end of 7 years, the system is yours and your bill is near-zero."

Move 2, Stack the subsidy before mentioning the loan. Never quote the gross project cost first. Always start with: "The system is ₹1.85 lakh. You get ₹78,000 from the government through PM Surya Ghar. That brings your share to ₹1.07 lakh. You put ₹20,000 as down payment and finance ₹87,000." This anchors the customer to ₹87,000, not ₹1.85 lakh.

Move 3, Handle bank paperwork as your service. Most customers fear bank documentation. Tell them: "We help every customer through the SBI application. You bring your Aadhaar and last 3 electricity bills. We handle the rest." This removes the friction point that causes deals to stall. See our guide on how to handle price objections in solar sales for scripts you can use on the first visit itself.

Pros and cons of PSBs vs NBFCs for solar financing

What documents your customer actually needs

Bankers in India often hand prospective solar borrowers a list of 12–15 documents. Here is what is actually mandatory vs what is optional at most PSBs for a standard 3–5 kW residential loan:

Mandatory at all PSBs:

• Aadhaar card (identity + address proof)
• PAN card
• Last 6 months' electricity bills (from the DISCOM account being modified)
• Bank statement for 3–6 months
• PM Surya Ghar application reference ID
• Vendor quotation from an empanelled EPC (that is your quotation)

Usually not needed for loans under ₹5 lakh:

• Income tax returns or Form 16 (waived for existing account holders at most PSBs)
• Property documents (hypothecation of the solar system is sufficient)
• Mortgage or collateral

Understanding the PM Surya Ghar application process end-to-end also helps you set customer expectations on timelines, especially around how long subsidy release takes post-installation.

Using financing to qualify solar leads faster

Finance-readiness is a proxy for close-readiness. When you talk to a new lead, ask early: "Do you have a budget earmarked, or would you prefer to explore EMI options?" This tells you in 5 seconds whether you are dealing with a cash buyer or a financing candidate. They require different conversations and different timelines, and your follow-up cadence should reflect that.

For leads that choose financing, the solar lead qualification checklist at QuickEstimate recommends asking three questions at first contact: Is the roof owned or rented? What is the current monthly electricity bill? Does the customer have an active savings account with SBI, BoB, or Canara? If all three answers are yes, you have a bank-loan-eligible lead who is closeable within one site visit.

To understand how financing-ready leads fit into your broader sales pipeline, read the guide on building your solar sales funnel in India.

State-level interest rate top-ups to know about

Several Indian states layer additional subsidies or interest subventions on top of the central PM Surya Ghar subsidy. This means the effective interest rate for the customer can be lower than what any bank's published rate shows.

• Gujarat: GEDA (Gujarat Energy Development Agency) offers a 2% interest subvention on solar loans for BPL households through nationalized banks.
• Rajasthan: RRECL (Rajasthan Renewable Energy Corporation Ltd.) provides an interest subsidy of ₹15,000 lump sum for residential rooftop systems up to 3 kW.
• Maharashtra: MSEDCL's DISCOM has a vendor-financing pilot in Pune and Nashik where the DISCOM itself advances 50% of the project cost to empanelled installers, reducing upfront risk.
• Tamil Nadu: TEDA (Tamil Nadu Energy Development Agency) links with Canara Bank for a 1% interest concession for residential solar borrowers in TANGEDCO territory.

For state-specific subsidy details that compound on top of bank rates, the PM Surya Ghar subsidy slabs guide has the MNRE-official numbers for each system size category. For the capital-side picture of how much your own EPC needs to start and what working capital financing looks like, read how much capital to start a solar business.

According to Central Electricity Authority (CEA) FY2025 data, India commissioned 18.5 GW of new solar capacity in a single year, and residential rooftop accounted for 2.3 GW of that, a 63% year-on-year jump. That growth is being catalysed by bank financing, not just subsidy alone.

How QuickEstimate helps EPCs close financed deals faster

When Rohit's team wants to send a financing-integrated proposal, the old process was: pull out a calculator, figure out EMI, type a WhatsApp message with rough numbers, wait for the customer to ask for a formal quote, then email a PDF that arrived 2 days late. By which point a competitor had already visited.

With QuickEstimate, the proposal includes the system cost, PM Surya Ghar subsidy, and net cost in one branded PDF, sent from the field in under 60 seconds. The customer gets it on WhatsApp before the sales rep has left their driveway.

• Proposal Generator, auto-calculates PM Surya Ghar subsidy by system size, outputs a professional PDF with net cost and financing-ready numbers.
• WhatsApp Follow-up, track whether the customer has opened the proposal, and trigger the follow-up exactly when they are re-engaging.
• Pipeline Management, tag financed leads separately from cash buyers, track bank approval status per deal, never let a loan-pending deal fall out of your pipeline.
• Sales Reports, see your team's close rate on financed vs cash deals, and coach the ones with low conversion on financing conversations.

What to do this week for your EPC

You have the data. Here is how to make it work in 7 days:

1. Identify your nearest SBI or Bank of Baroda branch manager and schedule a 20-minute intro meeting. Tell them you are a PM Surya Ghar empanelled EPC and want to set up a referral arrangement. Many branches are under pressure to disburse solar loans under their priority-sector lending targets, they will welcome you.

2. Build a one-page "EMI sheet" that shows your 3 most common system sizes (1 kW, 2 kW, 3 kW), the post-subsidy net cost, and EMIs at 7.65% for 5, 7, and 10 years. Print 20 copies for your sales team to carry on field visits.

3. Update your sales pitch so every site visit ends with: "Would you prefer to own this outright or spread it over 7 years at less than your current bill?" Make financing a standard option, not an exception you bring up only when the customer pushes back on price.

Frequently asked questions

What is the lowest solar loan interest rate available in India in 2026?

The lowest solar loan interest rate available in India in 2026 is 7.65% per annum, offered by State Bank of India (SBI) under its PM Surya Ghar Muft Bijli Yojana-linked green loan scheme. This rate is exclusively available for customers purchasing solar systems from empanelled vendors registered on the PM Surya Ghar National Portal. IREDA's direct lending window offers rates starting at 7.50% but only for commercial and industrial (C&I) projects above 250 kW. For standard residential customers using NBFCs, rates range from 11–16%.

Can solar loan customers also get PM Surya Ghar subsidy?

Yes. Taking a bank loan for your solar system does not disqualify you from the PM Surya Ghar Muft Bijli Yojana central subsidy. In fact, the scheme is designed so the subsidy (₹30,000 for 1 kW, ₹60,000 for 2 kW, ₹78,000 for 3 kW and above) is paid directly by MNRE to the customer's bank account after installation is commissioned. The customer then uses this subsidy to prepay part of the outstanding loan principal, which reduces future EMIs.

Which bank is best for a solar home loan in India?

SBI is the best bank for a residential solar home loan in India in 2026 because it offers the lowest interest rate (7.65%), zero to minimal processing fees, tenures up to 10 years, and minimal collateral for loans under ₹5 lakh. Bank of Baroda and Canara Bank are strong alternatives if the customer does not have an SBI account. For customers who need funds within a week without visiting a branch, Tata Capital or HDFC Bank are practical choices despite their higher rates.

How much EMI do I pay per lakh for a 7-year solar loan?

At SBI's rate of 7.65% for a 7-year (84-month) tenure, the EMI per ₹1 lakh is approximately ₹1,554. At Bank of Baroda's 8.10% for 10 years, it is approximately ₹1,221. At Tata Capital's 11% for 6 years, it is approximately ₹1,898. Always calculate EMI on the net loan amount after the PM Surya Ghar subsidy has been deducted from the project cost, since that subsidy arrives within 30 days of commissioning and reduces the principal.

Do I need a property mortgage for a solar loan?

For residential solar loans up to ₹5–10 lakh, most PSBs (SBI, BoB, Canara, PNB) accept hypothecation of the solar panels and mounting structure as security, no property mortgage required. Above ₹10 lakh, most banks require either a property mortgage or a co-applicant with property. NBFCs like Hero FinCorp offer entirely unsecured loans up to ₹5 lakh but at higher rates (12–16%).

How long does bank loan disbursement take for a solar project?

For PSBs under the PM Surya Ghar scheme, loan disbursement typically takes 15–30 working days from application to money in your EPC account. This includes 5–7 days for DISCOM feasibility approval, 7–10 days for bank credit processing, and 2–3 days for disbursement. NBFCs disburse in 5–7 working days. The bottleneck is almost always DISCOM, not the bank.

Can a self-employed person or business owner get a solar loan?

Yes. Self-employed individuals and business owners can get solar loans from all major banks. They typically need to provide 2 years of ITR (Income Tax Return) and bank statements in place of salary slips. Some PSBs waive income proof for existing account holders with a satisfactory 2-year relationship and a loan request under ₹3 lakh. Sole proprietors whose business is GST-registered often qualify for slightly higher loan amounts.

Is there a solar loan option for housing societies or group housing?

Yes. Bank of Baroda and Canara Bank offer group housing society solar loans where the loan is taken by the society's management committee. Repayment is structured through maintenance fees collected from residents. IREDA also has a specific scheme for group housing societies installing systems above 50 kW. This is increasingly popular in gated communities in Pune and Bengaluru.

What happens if the PM Surya Ghar subsidy is delayed?

If MNRE delays subsidy disbursement beyond 30 days post-commissioning (which does happen), the customer continues paying EMI on the full outstanding loan. There is no penalty or interest waiver for subsidy delay. As an EPC, the best practice is to set the customer's expectation at 45–60 days for subsidy receipt (not 30) to prevent complaints. Once the subsidy arrives, the customer should immediately contact the bank to apply it as a part-prepayment to reduce outstanding principal.