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Solar calculator

Work out the system size your home or business needs, what it costs after subsidy, and how quickly it pays for itself on the coast.

Your electricity use

Estimates use coastal-Karnataka averages: ~4 units/day generated per kW installed (monsoon included) and current MESCOM tariffs. Actual quotes from installers will vary.

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Recommended system

System size
Panels (540 Wp)
Roof area

Approximate cost after subsidy

System cost
Battery ( kWh)
Subsidy
Net cost

Complete installed cost — panels, inverter, structure, wiring, labour and net metering. Actual quotes vary with the brands you pick, the dealer and your roof; treat this as a starting point for comparing offers.

Subsidy per PM Surya Ghar: Muft Bijli Yojana — ₹30,000/kW up to 2 kW, ₹18,000 for the third kW, capped at ₹78,000. Details →

Central subsidy applies to residential rooftops only — businesses can claim accelerated depreciation instead. Details →

Savings

Monthly
Annual
Payback
25-year savings
Recommended inverter

Carbon impact

Roughly tonnes of CO₂ avoided every year — like planting trees.