☀ENERGY
Solar Panel Output Calculator
Estimate daily and monthly solar energy generation from panel count, wattage, peak sun hours and system efficiency.
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Formula
Daily energy (kWh) = panels × wattage ÷ 1000 × peak sun hours × efficiency.
Daily energy (kWh) = panels × wattage ÷ 1000 × peak sun hours × efficiency.
How it works
1
Enter number of panels and wattage.
2
Enter peak sun hours and efficiency.
3
Review daily and monthly generation.
Important notes
Actual solar output varies with season, weather, orientation, shading and system losses.