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Solar Generator & Battery Storage Sizing Calculator

Solar Generator & Battery Sizing Calculator

Calculate required solar panel wattage and battery storage capacity (Wh / Ah) for off-grid power and home backup.

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Energy Consumption & Sun

System Sizing

694 W Solar
Battery Capacity (Wh): 3,125 Wh
Battery Amp-Hours (Ah): 130.2 Ah @ 24V
Rec. Inverter Size: 2,000 W Pure Sine
Solar Array = (2,500 Wh ÷ 4.5 hrs) ÷ 0.8 efficiency = 694 Watts

How to Size a Solar Generator

A complete solar generator system requires balancing three components: Solar PV Input (to recharge the battery), Battery Storage (Wh) (for night/cloudy operation), and AC Inverter (W) (to power appliances).

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