Solar Calculator

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Not sure? Use a typical summer month — that's when solar earns hardest.

₹
₹1K₹30K
Tune the assumptions to your site
For businesses (optional)
What your roof puts back over 25 years
₹0
On a 0 kW system that pays for itself in about 0 years.
Year-one savings
₹0
System size
0 kW
Payback
0 yr
Govt. subsidy
₹0
Net cost after subsidy
₹0
Covers this much of your bill
0%

Your money back over 25 years

Green area = cumulative savings. Dashed line = net system cost. They cross at your payback point.

How to pay for it

Same system — three ways to fund it. Pick the cash flow that suits you.

Best returns
Buy · CAPEX
Pay upfront, own it, keep every rupee of savings.
—
Upfront—
Payback—
25-yr net—
Most popular
EMI · Loan
Little upfront — your monthly savings help pay the EMI.
—
Tenure
Upfront₹0
Saved / month—
25-yr net—
PPA · OPEX
Zero upfront — buy cheaper solar power; the provider owns the system.
—
Upfront₹0
You own itNo
25-yr net—

25 years, two futures

Staying grid-only₹0
With solar on the roof₹0

A gap of ₹0 — money that stays with you instead of going to the grid.

🌳
0
trees' worth of CO₂ absorbed, every year
🌍
0 t
of CO₂ avoided over 25 years

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Indicative estimates based on the assumptions shown (edit them to match your site). Not a formal proposal or a guarantee, and they don't account for shading or exact financing terms. PM Surya Ghar subsidy applies to residential systems only. For businesses, any accelerated-depreciation benefit is indicative (depreciation % × income-tax rate) and any sanctioned-load / roof-area limits you enter are applied only as rough caps — confirm all figures with your CA and a site survey before deciding.