How much solar fits on your roof?
Size the system, see monthly savings after subsidy, and know the year your rooftop pays for itself — sun hours refreshed from EU PVGIS where available.
Sun hours: EU PVGIS (live) with city fallback. Tariffs & ₹/kW: DISCOM / market benchmarks by city. Planning estimate only — not a DISCOM bill or installer quote.
Your rooftop
Bengaluru · Karnataka · BESCOM
Benchmark: 5.2 peak sun hrs/day · ₹8.4/kWh · ~₹58,000/kW installed · grid 0.71 kg CO₂/kWh
Strong year-round irradiance; monsoon dips Jun–Sep.
— kW
Recommended size
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Monthly savings
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Payback
- Panels (545 W)
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- Usable roof
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- Generation
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- Bill offset
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- System cost
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- Subsidy
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25-year outlook
Assumes 3% annual tariff escalation and 0.6% panel degradation.
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Lifetime savings
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CO₂ avoided / yr
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Trees equivalent
Estimates are indicative. Final sizing depends on a site survey, sanctioned load and your distribution company's net-metering policy.