Athul Antony
Updated 15 Mar 2026 · 5 min read
If you have been thinking about installing solar panels on your Kerala home, 2026 is the year the numbers finally make undeniable sense. The central government's PM Surya Ghar Yojana offers up to ₹78,000 in direct subsidy, KSEB's updated net metering rules let you bank surplus electricity against future bills, and system costs have dropped to their lowest point in a decade.
But the subsidy landscape is full of fine print that most homeowners miss — from ALMM panel requirements to the difference between what existing and new prosumers earn for surplus units. This guide cuts through the noise and gives you every detail you need to claim your subsidy, avoid common pitfalls, and understand exactly what your 3 kW or 5 kW system will cost after all incentives.
Quick Summary
- Maximum central subsidy of ₹78,000 for systems of 3 kW and above
- Subsidy rate: ₹30,000 per kW for the first 2 kW, ₹18,000 per kW for 2–3 kW
- Net cost for a 3 kW system after subsidy: approximately ₹1 lakh to ₹1.3 lakh
- Subsidy disbursed via Direct Benefit Transfer (DBT) within 30 days of commissioning
- KSEB net metering allows banking surplus units with settlement at year-end
- Payback period for Kerala homes: 3–5 years, depending on system size and usage
Check Subsidy Eligibility
Find out which government subsidies you qualify for.
How Much Solar Subsidy Can You Get in Kerala in 2026?
The central government's PM Surya Ghar: Muft Bijli Yojana is the only active subsidy scheme for residential rooftop solar in Kerala as of March 2026. There is no separate state-level subsidy from the Kerala government — the entire financial assistance comes from the MNRE (Ministry of New and Renewable Energy) through this central scheme.
Here is exactly what you receive based on system size:
| Cost Component | Amount |
|---|---|
| System cost (3 kW, Tier-1 panels) | ₹1,90,000 – ₹2,10,000 |
| PM Surya Ghar subsidy | – ₹78,000 |
| Your net investment | ₹1,12,000 – ₹1,32,000 |
| Monthly electricity savings (avg.) | ₹2,500 – ₹3,500 |
| Annual savings | ₹30,000 – ₹42,000 |
| Simple payback period | 3 – 4.5 years |
| System lifespan | 25 years |
The subsidy is capped at ₹78,000 regardless of whether you install 3 kW, 5 kW, or 10 kW. For most Kerala homes consuming 300–500 units per month, a 3 kW system is the sweet spot — it maximises the subsidy-to-cost ratio and covers the majority of your electricity bill.
Who Is Eligible for the Solar Subsidy in Kerala?
You qualify for the PM Surya Ghar subsidy if you meet all of the following conditions:
If you use a vendor or panel brand that is not MNRE-approved, your subsidy application will be rejected outright — no exceptions, no appeals.
Step-by-Step: How to Apply for Solar Subsidy in Kerala
The entire process runs through the national portal and KSEB's solar rooftop system. Here is the exact sequence:
Step 1: Register on the PM Surya Ghar Portal
Visit pmsuryaghar.gov.in. Click "Apply for Rooftop Solar Subsidy." Select Kerala as your state, your district, and KSEB Ltd as your electricity distribution company. Enter your KSEB consumer number, mobile number, and email address.
Step 2: Submit Your Application
Fill in property details, upload required documents (electricity bill, Aadhaar, property ownership proof, bank passbook), and submit.
Step 3: Wait for KSEB Feasibility Approval
KSEB will assess whether your location and electrical connection can support a rooftop solar system. This is done through the Solar Rooftop Portal – Kerala (ekiran.kseb.in). The official timeline is 30 days, but in practice it takes 45–90 days in most Kerala districts.
Step 4: Select an Empanelled Vendor and Install
Once you receive the feasibility approval, choose an MNRE-empanelled installer. Flarize is an MNRE-registered EPC company operating across Kerala — we handle the entire process from design to commissioning. The installation itself takes 2–3 days for a typical 3 kW residential system.
Step 5: Get Electrical Inspector Approval and Net Meter
After installation, the Electrical Inspector must approve the system. KSEB then installs a bidirectional net meter. This step can take 2–4 weeks depending on your district.
Step 6: Commissioning and Subsidy Disbursement
Once the system is commissioned and verified, the subsidy amount is transferred directly to your bank account via DBT (Direct Benefit Transfer). The official timeline for disbursement is within 30 days of commissioning.
KSEB Net Metering Rules in 2026: What Changed
KSEB updated its net metering billing system effective January 1, 2026. Here is what you need to know:
Residential consumers can install rooftop solar systems from 1 kW up to 20 kW under net metering — even if your connected load is lower than 20 kW. Systems up to 10 kW do not require a battery.
Under net metering, the electricity you generate but do not consume is fed back to the KSEB grid. This surplus is "banked" and credited against your future bills within the same financial year (April to March).
At the end of the financial year on March 31, any remaining banked units are settled in cash:
The energy bank resets to zero on April 1 every year. This means you should size your system to match your annual consumption as closely as possible — oversizing means you sell surplus units at a rate much lower than what you pay KSEB for buying electricity.
Real Costs and Payback Period for Kerala Homes
Let us break down the actual numbers for a typical 3 kW installation in Kerala:
After the payback period, you are generating free electricity for the remaining 20+ years of the system's life. With Kerala's electricity tariffs increasing 3–5% annually, the actual savings grow every year.
If you finance the system through a bank loan under the PM Surya Ghar scheme, public sector banks offer rates of 7–8% interest. The EMI for a ₹1.2 lakh loan over 5 years comes to approximately ₹2,400 per month — roughly equal to what you save on electricity. After 5 years, the loan is paid off and the savings are entirely yours.
A 3 kW system in Kerala costs approximately ₹1.1–1.3 lakh after the ₹78,000 PM Surya Ghar subsidy, with a payback period of just 3–4.5 years and 25 years of system life.
Eligibility
Do not sign any installer contract or make advance payments before receiving your KSEB feasibility approval letter. If feasibility is denied, recovering money from the installer becomes extremely difficult.
