Financial-grade solar analysis for your roof — in 3 minutes
Most solar calculators give you a payback number with no working underneath. RoofSolar runs the actual 25-year cashflow for your address using live PVGIS irradiance data — IRR, payback, export-tariff earnings, battery economics, and EV savings — worldwide, no signup. Built by a project-finance modeler. Free; Pro PDF €3.99.
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