Marine Solar Panel Calculator

Size solar panel array for marine battery charging considering sun hours and panel orientation at sea

Input Parameters

Results

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Daily Wh Needed
Wh
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Panels Required
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Total Array
Wp
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Controller Size
amps

Reference

Marine derating: 80% due to heat, tilt, shading MPPT controllers: ~85% efficient PWM controllers: ~75% efficient Peak sun hours vary by latitude: 4-6 typical