A solar loan in Bihar lets you install the plant now and pay for it from the savings it creates. Under the PM Surya Ghar loan product, banks lend up to ₹2 lakh at 5.75% per year, with a 10-year tenure and no collateral up to ₹2 lakh. For a typical 3 kW system, the loan covers the post-subsidy cost comfortably, and the monthly EMI often lands below the electricity bill the system replaces. This guide explains the terms, the EMI math, who can apply, and how to apply through the Jan Samarth portal.
Solar Loan in Bihar: Terms for 2026
The headline terms are simple: 5.75% per year interest on loans up to ₹2 lakh, repayment over up to 10 years, and no collateral or security for loans up to ₹2 lakh. The interest rate is floating, which means it can move with the bank's lending rates, so confirm the current rate on the bank's website before you sign. SBI and Bank of Baroda are the banks most commonly used for this product, and several other public sector banks lend against the same scheme through the Jan Samarth single-window portal.
The ₹2 lakh cap covers the real cost of most home systems. A 3 kW plant in Bihar costs about ₹1.7 to ₹2.0 lakh before subsidy; after the ₹78,000 central CFA, the net cost is roughly ₹95,000 to ₹1.25 lakh, well within the collateral-free limit. Borrow only the net cost after subsidy, not the gross system price, because the subsidy arrives separately as a direct bank transfer.
Bihar solar loan at a glance
Interest: 5.75% per year (floating) up to ₹2 lakh. Tenure: up to 10 years. Collateral: none required up to ₹2 lakh. Apply: Jan Samarth portal with Aadhaar, PAN, and electricity bill. Subsidy arrives separately as direct bank transfer after commissioning.
EMI Examples for Bihar Homes
EMI stands for equated monthly instalment, the fixed amount you pay the bank each month. The table below uses 5.75% per year on the post-subsidy cost of typical systems. These are indicative figures; your bank's exact EMI will differ slightly with the floating rate and processing charges.
| System | Net cost after subsidy | 36 months | 60 months | 84 months |
|---|---|---|---|---|
| 1 kW | ₹15,000 | ₹455/mo | ₹288/mo | ₹217/mo |
| 2 kW | ₹25,000 | ₹758/mo | ₹480/mo | ₹362/mo |
| 3 kW | ₹102,000 | ₹3,091/mo | ₹1,960/mo | ₹1,478/mo |
Indicative EMIs at 5.75% per year floating. Your bank’s exact EMI will differ slightly.
Notice how the EMI for a 3 kW system over 60 months sits well below a typical Bihar summer electricity bill of ₹2,500 to ₹4,000. This is the core logic of financing solar: the plant pays for itself from month one, and after the loan ends, the power is effectively free for the remaining life of the panels.
Who Can Apply and What Documents You Need
Any adult Indian resident with a residential electricity connection in Bihar can apply, whether or not they have an existing relationship with the lending bank. Banks check your credit history and repayment capacity like any other personal loan, so a clean CIBIL record helps, but the loan is designed for middle-income households and the ticket sizes are small.
- Aadhaar card linked to your mobile number, for identity and e-sign.
- PAN card for the credit check.
- Latest electricity bill showing your NBPDCL or SBPDCL consumer number.
- Bank statements for the last six months, showing income or salary credit.
- Vendor quotation for the proposed system, on the vendor's letterhead with GSTIN.
How to Apply on the Jan Samarth Portal
Jan Samarth is the government's single-window portal for scheme-linked loans, and the PM Surya Ghar solar loan runs through it. The process is paperless for most applicants.
- Check eligibility. Open jansamarth.in, select the PM Surya Ghar solar loan, and answer the basic eligibility questions.
- Fill the application. Enter your personal details, Aadhaar, PAN, and electricity consumer number, then choose your preferred bank.
- Upload documents. Aadhaar, PAN, electricity bill, bank statements, and the vendor quotation.
- Bank verification. The bank verifies your documents and credit history, typically within a week.
- Sanction and disbursal. On approval, the loan is sanctioned and disbursed, usually directly against the vendor's invoice.
Apply for the loan and register on the solar portal in parallel, not in sequence. The subsidy and the loan are independent tracks: the subsidy arrives as a direct bank transfer after commissioning, and many borrowers use that payout to part-prepay the loan, which cuts the total interest. There is no prepayment penalty on most of these loans, but confirm this clause in your sanction letter.
Mistakes to Avoid With Solar Loans in Bihar
The costliest mistake is borrowing the gross system price instead of the net cost after subsidy, which inflates both the EMI and the interest. The second is signing the loan before confirming the vendor is registered on the portal and the panels are DCR, because the subsidy depends on both and the loan does not wait for them. Get the vendor agreement, the DCR declaration, and the loan sanction letter in hand before installation day, and read the floating-rate clause so a future rate change does not surprise you.
Frequently Asked Questions
What is the interest rate for a solar loan in Bihar?
5.75% per year (floating) for loans up to ₹2 lakh under the PM Surya Ghar product, with up to 10 years tenure and no collateral up to ₹2 lakh. Confirm the current floating rate on the bank's website before signing.
How much can I borrow for rooftop solar in Bihar?
Up to ₹2 lakh collateral-free, which covers the post-subsidy cost of most home systems. A 3 kW plant nets about ₹95,000 to ₹1.25 lakh after the ₹78,000 central CFA. Borrow the net cost, not the gross price.
Where do I apply for the PM Surya Ghar solar loan?
On the Jan Samarth portal (jansamarth.in) with your Aadhaar, PAN, electricity bill, bank statements, and vendor quotation. SBI and Bank of Baroda are the most commonly used banks for this product.
Can I prepay the solar loan when the subsidy arrives?
Yes. The subsidy arrives as a direct bank transfer after commissioning, and most of these loans allow part-prepayment without penalty, which cuts total interest. Confirm the prepayment clause in your sanction letter.
Does the loan require the vendor to be registered?
The subsidy does, and you should treat the loan the same way. Use a vendor registered on pmsuryaghar.gov.in with DCR panels, or you risk paying EMIs on a plant that never earns its subsidy.
What if my CIBIL score is low?
Banks assess repayment capacity like any personal loan, and a weak credit history can mean rejection or a higher rate. If rejected, check your credit report for errors, clear small overdues, and reapply; the ticket sizes here are small, which works in your favour.