Outage-ready, the math-first way
Keep the lights, fridge and Wi-Fi on when the grid goes down.
Free calculators and honest buying guides for portable power stations and home backup, from someone who installs and maintains solar systems for a living.
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Power Station Size Calculator
Pick your appliances, get the Wh and W you need.
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Fridge Runtime Calculator
How many hours will your fridge run on battery?
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Best Power Stations for Home Backup
9 models grouped by what you need to run.
New: Black Friday power station deal checklist (Nov 27–30, 2026).