Solar financing has evolved dramatically, making renewable energy accessible to homeowners and businesses regardless of available capital. The question is no longer “Can I afford solar?”, it is “Which financing option maximises my ROI?”
This guide covers every solar financing option available in Gujarat in 2026, with practical comparisons, eligibility criteria, common mistakes to avoid, and step-by-step guidance on what to expect.
Why Financing Makes Solar More Accessible
The fundamental shift in solar economics is this: with the right financing, your monthly solar payment is often equal to or less than your current electricity bill. You go solar with no net increase in monthly outgoings while building equity in a 25-year asset.
For a typical 5 kW residential system in Gujarat costing ₹3,00,000:
- Government subsidy: ₹78,000 (the PM Surya Ghar cap for 3 kW and above)
- Net cost: ~₹2,22,000
- Financing the net cost at 11% over 15 years (possible with a home loan top-up; PM Surya Ghar bank loans run up to 10 years): ~₹2,520/month
- Monthly electricity savings: ₹3,500 to 4,500
- Net monthly benefit from day one
Option 1: Solar Loans
Solar loans allow you to own the system outright while spreading the cost over time. You benefit from all subsidies, accelerated depreciation (for commercial buyers), and full ownership of the solar asset.
Key Terms in 2026
| Parameter | Range |
|---|---|
| Interest rates | 5.75% on PM Surya Ghar bank loans up to ₹2 lakh (SBI, Union Bank, Bank of Baroda) and 7.90% above ₹2 lakh at SBI; personal loans from about 10% (ICICI lists 9.99% to 16.50%) |
| Loan tenure | Up to 10 years on PM Surya Ghar bank loans; up to 15 years on an HDFC home loan top-up; 6 years on many personal loans |
| Minimum down payment | 10% on PM Surya Ghar loans up to ₹2 lakh; 10% (SBI) to 20% (PNB, Bank of Baroda, Union Bank, Canara Bank) above ₹2 lakh; personal loans can fund 100% |
| Processing fees | Nil on PM Surya Ghar loans at SBI, PNB and Bank of Baroda; up to 2% (ICICI) or 4.13% (Bajaj Finance) on personal loans |
Sources: lender product pages (SBI, PNB, ICICI, Bajaj Finance), checked 2 October 2026. Rates change; confirm on the day you apply.
Secured vs. Unsecured Solar Loans
Secured loans:
- Lower interest rates (5.75% to 7.90% on SBI’s PM Surya Ghar loan; HDFC lists 8.00% to 13.70% for home loan top-ups)
- Secured by hypothecation of the solar system (PM Surya Ghar loans) or by your house (top-ups and home improvement loans)
- Longer available tenures
- Cover most residential systems up to 10 kW, and term loans cover larger commercial plants
Unsecured loans:
- No collateral required
- Higher interest rates (ICICI lists 9.99% to 16.50%; Tata Capital advertises from 10.99%; Bajaj Finance lists 10% to 30.5%)
- Shorter tenures (72 months at ICICI, 6 years at Tata Capital)
- Accessible for residential buyers without pledgeable assets
Documentation Required
- KYC documents (Aadhaar, PAN)
- Last 6 months’ bank statements
- Last 2 years’ income tax returns (or salary slips for salaried applicants)
- Property documents (for secured loans)
- Solar installer quote and system specifications
- PM Surya Ghar portal registration (scheme loans are applied for on the JanSamarth portal after registering on pmsuryaghar.gov.in)
For SBI’s PM Surya Ghar loan up to ₹2 lakh, SBI lists only KYC documents and the electricity bill; the income documents apply above ₹2 lakh.
How Solar Loans Affect ROI
With a 10-year solar loan at 10.5% interest on ₹2,00,000 net cost:
- Monthly payment: ~₹2,700
- Monthly electricity savings: ~₹3,500
- Monthly positive cash flow from day one: ~₹800
- After loan repayment in year 10: Full ₹3,500+/month savings (growing with tariff escalation)
- Total interest cost: ~₹1,24,000 over 10 years
- Net 25-year savings still exceed ₹7 lakhs after interest
Common Mistakes to Avoid with Solar Loans
- Focusing only on monthly payment: Longer tenures dramatically increase total interest paid. Compare total interest cost, not just monthly payments.
- Ignoring processing fees: Personal loans can charge up to 2% (ICICI) or more; PM Surya Ghar loans at SBI, PNB and Bank of Baroda charge none
- Not accounting for prepayment: Many lenders allow prepayment; paying extra when possible reduces interest burden significantly
Option 2: Solar Leases
Under a solar lease, a third party owns the solar system installed on your property. You pay a fixed monthly fee to use the system, with no upfront cost and no ownership of the asset.
How Solar Leases Work
- Solar provider installs system at no upfront cost to you
- You pay a fixed monthly lease payment for the term (typically 15 to 25 years)
- The provider handles all maintenance and warranty management
- At lease end, options include: renewing the lease, purchasing the system, or having it removed
Advantages
- No upfront capital required
- No responsibility for maintenance
- Predictable monthly payments
- Immediate electricity cost reduction
Disadvantages
- You do not own the system, no equity buildup
- You do not directly benefit from government subsidies (the system owner claims them)
- Property sale becomes more complex (lease must be transferred or terminated)
- Lease payments typically escalate over time
- Total cost over 25 years often exceeds the cost of ownership via loan
When a Solar Lease Makes Sense
- You cannot access loan financing
- You want zero maintenance responsibility
- The monthly lease payment is significantly below your current electricity cost
Option 3: Power Purchase Agreements (PPAs)
A Power Purchase Agreement (PPA) differs from a lease: instead of paying for the system, you pay only for the electricity it generates, at a predetermined rate. This is closely related to the OPEX financing model and RESCO structure.
How PPAs Work
- Solar developer installs and owns the system
- You agree to purchase all electricity generated at a fixed per-unit rate
- PPA rate is typically 10 to 20% below current grid tariffs
- Agreement runs for 10 to 25 years
- Developer handles all maintenance, monitoring, and insurance
PPA Pricing Structure
| PPA Rate Type | Description |
|---|---|
| Fixed rate | Same rate for the entire agreement term |
| Escalating rate | Rate increases by a fixed % annually (typically 1 to 3%) |
Even with escalation, PPA rates are structured to remain below projected grid tariff increases over the agreement term.
PPA vs. Loan: Which Is Better?
| Factor | PPA | Solar Loan |
|---|---|---|
| Upfront cost | Zero | 10 to 30% (or zero-down) |
| System ownership | No | Yes |
| Maintenance responsibility | Developer | Owner (via AMC) |
| Government subsidies | To developer | To owner |
| Total 25-year value | Lower | Higher |
| Complexity | Low | Moderate |
For most Gujarat homeowners and businesses with access to financing: A solar loan delivers significantly better long-term returns than a PPA. PPAs are most suitable for commercial entities that prefer to avoid capital expenditure on non-core assets.
Option 4: Zero-Down Payment Financing
Zero-down payment financing eliminates any upfront cost while preserving full system ownership, unlike a lease or PPA. PM Surya Ghar bank loans ask for a 10% to 20% margin, so a zero-down structure usually means a personal loan or a home loan top-up, at a higher rate.
How Zero-Down Works
- The lender finances 100% of the system cost
- You begin making monthly payments immediately after commissioning
- Monthly payments are structured to be equal to or below your current electricity bill
- You own the system and benefit from all subsidies (with a PM Surya Ghar bank loan the subsidy is credited to the loan account; with other loans it reaches your bank account and you can prepay with it)
Example: 5 kW Residential System in Gujarat
| Item | Value |
|---|---|
| Gross system cost | ₹3,00,000 |
| Government subsidy | ₹78,000 |
| Net financed amount | ₹2,22,000 |
| Interest rate | 11% |
| Tenure | 15 years |
| Monthly payment | ~₹2,520 |
| Monthly electricity savings | ~₹3,500 to 4,500 |
| Net monthly benefit | About ₹1,000 to 2,000 positive from day one |
After the 15-year loan is fully repaid, all electricity savings (~₹4,500 to 6,500/month at projected tariffs) become direct cash savings for the remaining 10+ years of the system’s life.
Option 5: Government Subsidies and Schemes
Government subsidies are not a financing option per se, they reduce your net system cost and can be combined with any of the above financing approaches.
PM Surya Ghar (Rooftop Solar Programme)
The central government’s flagship residential solar subsidy, as set by MNRE: ₹30,000 per kW for the first 2 kW and ₹18,000 for the 3rd kW, capped at ₹78,000.
| Capacity | Subsidy |
|---|---|
| 1 kW | ₹30,000 |
| 2 kW | ₹60,000 |
| 3 kW and above | ₹78,000 (cap) |
Application process:
- Register on the PM Surya Ghar national portal
- Choose a vendor registered on the PM Surya Ghar national portal
- Complete installation with DCR (domestically manufactured) modules
- Submit completion documentation for DISCOM inspection
- Redeem the e-token on the portal: the subsidy is processed within 15 days of DISCOM approval and paid to your bank account, or to your loan account first if the system is financed
These are fixed amounts per kW under the MNRE operational guidelines of 7 June 2024, not a percentage of a benchmark cost. Check pmsuryaghar.gov.in for any revision before you apply.
PM-KUSUM Scheme
Designed for agricultural and rural solar installations:
- Covers standalone solar pumps (Component B), solarisation of grid-connected pumps (Component C) and small solar plants on farmland (Component A)
- Components B and C: central assistance of 30% of the benchmark or tender cost (50% in north-eastern, hill and island states), with the state contributing at least 30%
- The farmer pays the balance
- Status in October 2026: the scheme period ended on 31 March 2026. Only projects with a PPA or NTP issued by 31 December 2025 can still be completed (by 31 March 2027), and PM-KUSUM 2.0 is at the proposal stage, so there is no open application window
Eligibility: Farmers with agricultural land and existing pump connections. Individual farmers, farmer groups, cooperatives, and Gram Panchayats may be eligible depending on the component applied for.
Accelerated Depreciation (Commercial and Industrial)
For business entities:
- 40% depreciation in year 1 on the solar asset value
- Reduces taxable income in the year of installation
- For a 30% tax bracket, saves ₹12 for every ₹100 of system cost in year 1
- Effective in improving cash flow and shortening practical payback period
Comparing Financing Options: At a Glance
| Option | Upfront Cost | Ownership | Subsidies | Maintenance | Best For |
|---|---|---|---|---|---|
| Cash purchase | Full cost | Yes | Yes | Owner | Best long-term ROI |
| Solar loan | 0 to 30% | Yes | Yes | Owner | Most common for homeowners |
| Zero-down loan | Zero | Yes | Yes | Owner | Limited capital, want ownership |
| Solar lease | Zero | No | No (developer) | Developer | Avoid capital exposure |
| PPA | Zero | No | No (developer) | Developer | Commercial, no capex preference |
| Government subsidy | Reduced | Yes | Yes | Owner | Combines with any of the above |
Step-by-Step: Applying for Solar Financing in Gujarat
Step 1: Get a Detailed System Proposal
Request an itemised proposal from a reputable EPC provider. The proposal should specify:
- System size and expected annual generation
- Equipment brands (panels, inverter, mounting)
- Gross cost, applicable subsidies, and net cost
- Projected payback period and 25-year savings
Step 2: Check Subsidy Eligibility
- Verify your system qualifies under PM Surya Ghar or applicable Gujarat schemes
- Confirm the installer is a vendor registered on the PM Surya Ghar national portal
- Confirm the modules are DCR (domestically manufactured) and on the ALMM list
Step 3: Compare Financing Offers
Obtain quotes from at least two lenders. Compare:
- Interest rate (flat vs. reducing balance, reducing is standard and better)
- Processing fees
- Total interest cost over the full tenure
- Prepayment terms
Many EPC providers, including Heaven Green Energy, help customers apply for these loans and prepare the installer documents lenders ask for.
Step 4: Gather Documentation
Standard requirements:
- KYC (Aadhaar, PAN)
- Income proof (salary slips, ITR, or business financials)
- Bank statements (6 to 12 months)
- Property documents
- EPC proposal and equipment specifications
Step 5: Loan Disbursement and System Commissioning
PM Surya Ghar bank loans are paid directly to the vendor (the loan plus your margin) after the feasibility reports mandated by MNRE are submitted. The subsidy is processed within 15 days of DISCOM approval, released when you redeem the e-token on the portal, and credited to the loan account first if the system is financed.
Frequently Asked Questions About Solar Financing
What credit score do I need for a solar loan?
It depends on the loan. SBI’s PM Surya Ghar loan sets no minimum CIBIL score for loans up to ₹2 lakh and asks for 650 above that; PNB, Union Bank and Canara Bank list a score of 680, and PNB and Canara Bank also accept applicants with no credit history. Personal loans cost more and have their own floors (Bajaj Finance lists 650 or higher). Check your CIBIL score before applying and work to improve it if needed.
Can I finance solar if I live in a rented house?
Solar loans are generally available only to property owners, as the installation becomes part of the property. If you are a tenant, discuss with your landlord whether a lease or PPA arrangement might be structured to benefit both parties.
How long does loan approval take?
Lenders do not publish fixed timelines. A PM Surya Ghar bank loan needs portal registration, a JanSamarth application and branch verification, so it usually takes longer than a pre-approved personal loan from your own bank. Your EPC provider can help you prepare the documents so the file is not held up.
Does the subsidy reduce the loan amount?
It reduces the outstanding balance rather than the amount sanctioned. With a PM Surya Ghar bank loan, you enter the loan account number on the portal and the subsidy is credited to the loan account (any amount above the outstanding balance goes to your bank account). With a personal loan or top-up, the subsidy reaches your bank account and you can use it to prepay part of the principal.
Is solar financing available for commercial and industrial projects?
Yes. Commercial solar loans are widely available from nationalised banks, private banks, and NBFCs. Terms differ from retail loans, typically lower interest rates, higher loan amounts, and structured around the project’s cash flows. Accelerated depreciation benefits further improve commercial solar ROI.
Want help identifying the right financing option for your solar project? Heaven Green Energy is an MNRE-empanelled solar EPC provider with 10,000+ installations since 2017. We assist customers with subsidy applications, loan applications, and end-to-end project execution.
Call us at +91 63904 05060 to discuss your financing options and get a personalised financial analysis for your solar project.