Free · No signup · Subsidy included · Last updated July 2026
Solar Panel Cost Calculator India — With PM Surya Ghar Subsidy
Calculate the right solar system size, PM Surya Ghar subsidy, net installation cost, annual savings, and payback period for your home.
Educational calculators — always consult a licensed professional before making financial decisions.
Check your last electricity bill for units consumed. 1 unit = 1 kWh.
Shadow-free flat roof area available for panels. Each 400W panel needs ~30 sqft.
On-grid gets PM Surya Ghar subsidy and net metering. Off-grid needs batteries.
Connected to grid — sell surplus, eligible for subsidy.
Net system cost (after subsidy)
₹56,000 – ₹1.06 L
PM Surya Ghar subsidy: ₹69,000 deducted
PM Surya Ghar subsidy: ₹69,000 — Apply at pmsuryaghar.gov.in. Subsidy is credited directly to your bank account after installation verification.
Notes
- •System type: On-Grid (grid-tied, net metering)
- •Recommended size: 2.5 kW — generates ~3650 units/year
- •Roof area needed: ~210 sqft
- •PM Surya Ghar subsidy: ₹0.69L (apply via pmsuryaghar.gov.in)
- •Solar panels last 25 years; inverters typically need replacement at 10–12 years
- •Net metering (export surplus to grid) is available in most Indian states for on-grid systems
Estimate based on 5 peak sun hours/day average across India. Actual generation depends on location, panel orientation, and shading. Get proposals from at least 3 MNRE-empanelled vendors.
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What you'll need
- ·Monthly electricity consumption (units from your bill)
- ·Available roof area (sq ft, shadow-free)
- ·Preferred system type — on-grid / off-grid / hybrid
How it works
Enter monthly electricity usage
Your monthly units (kWh) from your electricity bill. This determines the right system size.
Enter available roof area
Shadow-free flat roof area in sq ft. This may limit how big a system you can install.
Get cost and savings estimate
See recommended system size, PM Surya Ghar subsidy, net cost, annual savings, and payback period.
Solar System Cost & Savings — On-Grid, Residential (2025–26)
| System Size | Cost Before Subsidy | Subsidy | Net Cost | Annual Savings |
|---|---|---|---|---|
| 1 kW | ₹50K–₹70K | ₹30,000 | ₹20K–₹40K | ₹15K–₹22K |
| 2 kW | ₹1L–₹1.4L | ₹60,000 | ₹40K–₹80K | ₹30K–₹45K |
| 3 kW | ₹1.5L–₹2.1L | ₹78,000 | ₹72K–₹1.32L | ₹44K–₹66K |
| 5 kW | ₹2.5L–₹3.5L | ₹78,000 (max) | ₹1.72L–₹2.72L | ₹74K–₹1.1L |
Savings based on ₹6–9/unit tariff. Subsidy only for on-grid residential systems via DISCOM. Battery/off-grid systems are not eligible.
Methodology & sources
The cost figures on this page are generated from a single, sourced cost-data file (On-grid rooftop system installed by size (before subsidy), India national average for 2026 (~₹55,000–₹85,000 per kW).). PM Surya Ghar: Muft Bijli Yojana pays ₹30,000 for the first kW, ₹60,000 for 2 kW, capped at ₹78,000 for 3 kW+. Net cost for a 3 kW system is ~₹1.13 lakh after subsidy. Last verified July 2026.
- MyR Solar — Solar Panel Installation Cost India (2026) — retrieved 2026-07-13
- Earthwave — Solar Panel Cost India by System Size (2026) — retrieved 2026-07-13
Frequently asked questions
What is the cost of solar panel installation per kW in India?+
Solar panel installation cost in India (2026): On-grid systems ₹50,000–₹70,000/kW, Off-grid (with battery) ₹70,000–₹1,00,000/kW, Hybrid ₹80,000–₹1,20,000/kW. These are all-inclusive costs — panels, inverter, mounting structure, wiring, and installation. Prices have fallen 40–50% in the last 5 years.
What is PM Surya Ghar subsidy and how much can I get?+
PM Surya Ghar Muft Bijli Yojana provides subsidy for residential on-grid rooftop solar: ₹30,000/kW for up to 2kW capacity and ₹18,000/kW for the additional 1kW (i.e., 2–3kW). Maximum subsidy is ₹78,000 for a 3kW system. Apply at pmsuryaghar.gov.in through your DISCOM. The subsidy is credited to your bank account after installation verification by the DISCOM.
How much roof area is needed for solar panels?+
Each 400W solar panel requires about 25–30 sq ft of shadow-free flat roof area. A 3kW system needs approximately 8 panels = 200–240 sq ft. A south-facing slope improves generation by 10–20%. Avoid shading from water tanks, parapet walls, or neighbouring structures — even partial shading significantly reduces output.
What is the payback period for rooftop solar in India?+
After PM Surya Ghar subsidy, most on-grid rooftop solar systems pay back in 4–7 years. A 3kW system in Maharashtra or Gujarat (high sun + good net metering policy) may pay back in 4–5 years. After payback, you generate free electricity for 15–20 more years. Solar panels are typically warranted for 25 years at 80% output.
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Cost ranges and rates here are checked against contractor quotes and published industry data. If a number still looks off, email Support@RealCostIQ.com and we'll review and fix it.