Solar and energy calculators · 3 free tools
Work out the solar system you need, what it costs, what it saves and how many units it generates, for any city in the world, using real sunlight data.
- SolarSolar panel cost calculatorSystem size, cost, savings and paybackOpen tool
- SolarSolar generation calculatorkWh per day, month and yearOpen tool
- SolarSolar production calculatorOutput per panel and per arrayOpen tool
Solar tools FAQ
Use the cost calculator to plan a new system from your bill, the generation calculator if you know the system size in kW, and the production calculator if you know how many panels you have.
Yes. Search any city in the world. Each country has its own currency and typical prices, which you can change.
From PVGIS, the European Commission's free solar database, built from long-term satellite and weather records.
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