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Solar

Solar Payback Calculator

Test a solar quote without assuming a future tariff increase. Enter only incentives you have verified.

Formula shown Browser-only inputs Offline ready
Your inputs

Enter your household details

Your numbers stay in this browser. Nothing is uploaded.
Your estimate

Simple payback estimate

5.5 years

The entered net cost is ₹2,10,000 and first-year bill savings are estimated at ₹38,400.

Net upfront cost₹2,10,000
First-year savings₹38,400
20-year simple savings₹5,58,000

Keep in mind

Simple payback excludes financing, degradation, maintenance and tariff changes.

Enter only a benefit or subsidy you have independently verified.

How this estimate works

A simple formula, visible assumptions

Simple payback = net upfront cost ÷ first-year bill savings.

The result updates in your browser as you change an input. It is a planning estimate, so compare it with real bills, product specifications and a qualified professional's assessment.

Read the full methodology
A better input gives a better result

Before you calculate

  • Use a recent electricity bill or equipment nameplate.
  • Enter prices and tariffs that apply to your household.
  • Keep notes from installers or manufacturers nearby.
  • Recalculate when your usage pattern changes.
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