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Solar Loan & EMI Calculator

Calculate your solar loan monthly EMI, interest vs principal breakdown pie chart, complete amortization schedule, and net monthly solar cashflow.

Public-sector banks offer collateral-free solar loans from 7.00–8.50% p.a. for residential systems up to 3 kW.

Updated August 2026 Reviewed by the SolarOps360 Engineering Team

Solar Loan & EMI Calculator

Calculate monthly EMI, interest breakdown, principal vs interest ratio, and net solar savings.

Bank Surcharges & Concessional Green Rates
Popular Loan Sizes:
₹

Gross system cost before or after subsidy deduction.

10% (₹25,000)

Most banks finance up to 85%–90% of rooftop solar costs.

8.5% p.a.

Concessional solar loans (SBI Surya Ghar, PNB, Canara) range from 7.0% to 9.5%.

5 Years (60 Months)

Typical solar loans have a 3 to 7 year repayment window.

Example: for a ₹2,50,000 project with ₹25,000 (10%) down payment, monthly EMI is ₹4,616 for 5 years @ 8.5% interest — total repayment ₹2,76,960. Adjust the sliders above for your own numbers.

Showing an example — adjust the sliders above for your own numbers.

Monthly Loan EMI
₹4,616

Payable per month

Net Loan Principal
₹2,25,000

After ₹25,000 down payment

Total Interest Payable
₹51,960

19% of total amount

Total Repayment Amount
₹2,76,960

Principal + Total Interest

Payment Breakdown

Hover for details
Principal
0%
₹0
Principal 0%
₹0
Interest 0%
₹0
Monthly Net Cashflow Analysis

Solar Bill Savings vs Loan EMI

Solar panels begin generating electricity savings from Day 1. Often, the monthly electricity bill reduction is higher than or equal to the loan EMI!

Est. Monthly Solar Generation Savings
₹4,253/mo

Loan Amortization & Repayment Schedule

Year Opening Balance Principal Paid Interest Paid Total EMI Paid Closing Balance
How It Works

How This Calculator Works

  1. 1

    Enter Solar Project Cost

    Enter the total estimated cost of your rooftop solar installation in ₹.

  2. 2

    Set Down Payment Amount

    Adjust the down payment percentage (typically 10% to 20%) to determine your net loan principal amount.

  3. 3

    Choose Interest Rate & Tenure

    Select your expected annual bank interest rate (e.g. 7.5%–8.5%) and loan tenure in years.

  4. 4

    Review EMI & Visual Breakdown

    Inspect the monthly EMI, total interest payable, interactive Principal vs Interest pie chart, and net savings.

  5. 5

    Export Amortization Table

    Download the full yearly or monthly amortization schedule as a CSV spreadsheet or unlock the PDF comparison.

Financing Guide

Rooftop Solar Loan Options in India

PM Surya Ghar Collateral-Free Loans

Public sector banks (SBI, PNB, Canara, BoB) offer collateral-free rooftop solar loans up to ₹2 Lakhs @ 7.0% concessional interest rate.

Zero Out-of-Pocket Cost

By combining Central & State subsidies with low EMI financing, monthly electricity bill savings exceed the loan installment in most cases.

Tax Benefits for Commercial

Commercial businesses can claim 40% Accelerated Depreciation plus interest expense tax deductions, speeding up total asset recovery.

FAQs

Frequently Asked Questions

What is the interest rate for rooftop solar loans in India?
Under the PM Surya Ghar initiative, public sector banks (SBI Surya Ghar, PNB, Canara Bank, Bank of Baroda) offer concessional, collateral-free solar loans starting at 7.00% to 8.50% p.a. for residential installations up to 3 kW.
Is collateral required for a residential solar loan in India?
No. For residential rooftop solar systems up to 3 kW (or loans up to ₹2 Lakhs), leading nationalised banks provide 100% collateral-free loans backed by CGTMSE (Credit Guarantee Fund Trust for Micro and Small Enterprises).
How does solar loan EMI compare to electricity bill savings?
In most Indian states, a 3 kW solar system generates approximately ₹2,500 to ₹3,200 worth of electricity every month. A 5-year solar loan EMI for the net system cost is typically ₹2,200 to ₹2,800/month. This makes the installation cashflow-positive or neutral from the very first month.
What is the maximum loan tenure available for solar projects?
Standard residential solar loans offer repayment tenures between 3 to 7 years (36 to 84 months), with some commercial and industrial green financing packages extending up to 10 years.
Can I prepay my solar loan without penalty charges?
Yes, most public sector banks and leading NBFCs offer zero prepayment / foreclosure penalties on green energy and floating rate solar loans for residential consumers.

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