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RV Solar

RV Solar & House Battery Calculator

Match rooftop panel yield to daily 12V/24V loads and bank Ah shortfall.

Panel wattsW

Peak sun hourshrs

System efficiency%

Daily loadWh/day

House voltageV

Daily solar yield

Enter panels, sun & load

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About RV Solar & House Battery Calculator

RV solar balance

Yield Wh = panel W × sun h × efficiency%. Shortfall Ah = (load − yield) ÷ voltage when yield is low.

Frequently asked questions

Q: 12 V vs 24 V? A: Higher voltage reduces amps for same watts—smaller cables.

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