PM Surya Ghar rooftop solar subsidy calculator
Enter your rooftop system size and get the PM Surya Ghar central subsidy slab by slab, plus what you actually pay after it.
| Breakdown | Value |
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The card states the rule with standard examples. It never includes your name, and your own figure appears only if you tick the box. Download image
Estimate. The method and sources are on this page — check them against your own case before you act.
How it is calculated
The PM Surya Ghar subsidy is not a flat percentage. It is a fixed amount per kilowatt, and the rate falls after the first 2 kW. After 3 kW the central subsidy stops growing.
Subsidy = min(kW, 2) × ₹30,000 + max(0, min(kW, 3) − 2) × ₹18,000 · Nothing beyond 3 kW
Take the first 2 kW at the top rate
Every eligible residential rooftop system gets ₹30,000 per kW for the first 2 kW. A 1.5 kW system gets ₹45,000; a 2 kW system gets ₹60,000.
Add the third kW at the lower rate
The next 1 kW — from 2 kW to 3 kW — is paid at ₹18,000 per kW. This is why a 2.5 kW system gets ₹60,000 + ₹9,000 = ₹69,000.
Stop at 3 kW
Capacity above 3 kW gets no additional central subsidy, so the maximum is ₹78,000 (₹85,800 in special category states). The calculator still shows your cost for the full system.
PM Surya Ghar subsidy slabs
| Segment or capacity | General states | Special category states | What it means |
|---|---|---|---|
| First 2 kW | ₹30,000 per kW | ₹33,000 per kW | Paid on the first 2 kW or part thereof. |
| Third kW (2–3 kW) | ₹18,000 per kW | ₹19,800 per kW | Only the capacity between 2 kW and 3 kW. |
| Above 3 kW | No central CFA | No central CFA | Extra capacity is unsubsidised centrally. |
| Maximum for a home | ₹78,000 | ₹85,800 | Cap reached at 3 kW. |
| Group housing / RWA common facilities | ₹18,000 per kW | ₹19,800 per kW | Capped at 3 kW per house. |
| MNRE benchmark cost | ₹50,000/kW first 2, ₹45,000 third | ₹55,000/kW first 2, ₹49,500 third | Tiered benchmark for scheme accounting; the calculator applies one editable rate, not this tiering. |
What most pages get wrong
₹78,000 is the most a home gets centrally
The subsidy reaches its maximum at 3 kW. A 5 kW or 10 kW system still gets only ₹78,000, so the larger system is paid for by you.
The subsidy follows module capacity, not the inverter
A larger inverter does not increase the subsidy. The MNRE guidelines count the rated DC capacity of the modules installed on the roof.
DCR modules are mandatory for the subsidy
Modules must be made in India from Indian cells to qualify for CFA. Non-DCR modules are allowed only under the Give It Up option, where you forgo the subsidy.
Your state may add its own subsidy
Several states top up the central CFA. The extra amount is set by the state and is not part of this calculator's ₹78,000 figure.
Frequently asked questions
How much subsidy do I get for a 3 kW rooftop solar system?+
How much subsidy for a 5 kW system?+
Who is eligible for PM Surya Ghar?+
Is the subsidy paid to me or to the installer?+
Does the subsidy depend on what I pay the installer?+
Can a group housing society or RWA claim the subsidy?+
How long will the PM Surya Ghar subsidy be available?+
Sources, dates and a changelog.
Every number this calculator uses is either an input you control or a value from the sources below. The formula is compiled and tested at build time, so the page cannot ship with a broken calculation.
Sources
This page
- Last verified: 30 October 2026
- Next review: 31 March 2027
- Vertical: Solar & Energy
- Build tests: 4 passed
- Changelog: 2 entries
How we handle errors
- Spotted a mistake? Report it — we correct and log it.
- Corrections appear in the changelog below.
- Read the methodology and the disclaimer.