SolarScope: Your Free Solar Panel Calculator
Planning a solar system? With our free SolarScope PV calculator, you can interactively trace roof and open areas on the map to instantly determine their solar potential. Our solar calculator utilizes high-precision historical weather and irradiance data from the past 5 years (ERA5) alongside current forecasts to provide a realistic, location-specific yield estimate for your solar energy – completely without registration.
Transparent Calculation of Solar Yield, Costs & ROI
Find out instantly when your solar panel system will pay for itself. We combine your estimated PV yield with adjustable parameters like electricity price, feed-in tariffs, and system costs. Our data basis is fully transparent, relying on conservative industry standards (20% module efficiency, 80% system performance ratio, 85% usable roof area). The Global Horizontal Irradiance (GHI) is sourced directly from the European Centre for Medium-Range Weather Forecasts (ECMWF) via Open-Meteo.
Wissenschaftliche Datengrundlage
Die zugrundeliegenden solaren Einstrahlungsdaten (GHI) stammen aus dem hochauflösenden ERA5-Reanalyse-Datensatz des European Centre for Medium-Range Weather Forecasts (ECMWF). Für die technische Ertragssimulation wurde ein konservativer Modulwirkungsgrad von 20% sowie eine System-Performance von 80% (gemäß aktuellen Richtwerten des Fraunhofer ISE) angenommen.