Solar panels: 3–5 sun-hours a day

1 kW of panels yields roughly 3–5 kWh per day in temperate climates, averaged over the year.

Why it works

"Peak sun hours" bundle up weather, season and sun angle. Deserts push toward 6; cloudy northern winters can dip below 1.

Do it exactly

Estimate with the rule, then check it against the calculator that models it properly.

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How many hours a day do solar panels actually produce?

1 kW of panels yields roughly 3–5 kWh per day in temperate climates, averaged over the year. "Peak sun hours" bundle up weather, season and sun angle.

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