Costs, Sizing Calculators & ROI Guides

The numbers behind backup power: what things really cost, how to size a system correctly, and whether the investment pays off. This category is anchored by our free wattage calculator — every article here either feeds into it or extends it with cost and ROI context.

Cost & sizing guides

Power Station Wattage Calculator: What Appliances Can You Run?

A breakdown of exactly what a 300Wh, 1000Wh, and 3000Wh power station can realistically run — plus the free calculator to check your own list.

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⚠️ All figures in this category are typical industry averages for planning purposes. Always confirm exact wattage against your own appliance's nameplate rating before sizing backup power.