How to size a battery backup system for your home
Work out the inverter watts and battery watt-hours your home needs during an outage, with a worked example you can copy for your own appliances.
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Guides
How to size a system, compare options, and get the most from solar and batteries during an outage.
Work out the inverter watts and battery watt-hours your home needs during an outage, with a worked example you can copy for your own appliances.
Read the guideBattery power station or gas generator? See how they differ on indoor safety and runtime, and which one fits your home outage plan.
Read the guideEstimate how many hours a portable power station can run your refrigerator using its EnergyGuide label, with runtimes for 1,152 Wh, 2,000 Wh, and 3,840 Wh units.
Read the guideMatch solar panels to your power station’s input limits, wire them safely in series or parallel, and estimate how long a full solar recharge will take.
Read the guideLiFePO4 and NMC lithium batteries differ in cycle life, weight, and heat tolerance. Learn which chemistry fits home backup, portable power, and travel use.
Read the guide