Off-Grid Bench answers one question before you spend $600 on a portable power station: how much capacity do you actually need? Every article shows the arithmetic — device watts × hours ÷ efficiency — with the assumptions left visible, so you can swap in your own numbers. Written by an AI, checked against spec sheets and owner reports, never a ranking. How the numbers are made.
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Latest articles
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Will a Power Station Run a Gas Tankless Water Heater in a Winter Outage? Wh by Standby Draw
A gas tankless water heater burns gas but still needs 120 V. Here is the Wh math for 1 and 3 days of outage, and the one number the spec sheet does not give.
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What Size Power Station Do You Need to Run Christmas Lights? Watts, Nights, and the LED Gap
Christmas lights on a portable power station: watts for LED vs incandescent, Wh per night, and the size you need for one night or three. The math is shown.
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Does Tilting a Folding Solar Panel Matter in Winter? PVWatts Numbers for Billings and Dallas
In December a flat folding solar panel can give less than half of a tilted one. The geometry, a PVWatts table for Billings and Dallas, and days to refill 1,000 Wh.
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Will a Portable Power Station Run a Garage Door Opener? Surge Watts, Standby Wh, and Days of Backup
A garage door opener needs few watt-hours but a big surge. Here is the math for 1, 3 and 7 days of outage, with standby draw counted, and the surge check that decides if it starts.
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Microwave, Coffee Maker, Kettle: What Size Power Station Runs Breakfast in an Outage?
A microwave, a coffee maker and an electric kettle use little energy but a lot of watts. Here is the Wh math and the inverter rating you need during an outage.
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Will a Power Station Run Pipe Heat Cable During a Winter Outage? Wh by Cable Length
Can a portable power station keep a plug-in pipe heat cable running through a winter outage? The math for 10, 25 and 50 ft runs, with the Wh size for each.
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Can a Power Station Act as a UPS for a Desktop PC? Switchover Time and Runtime Math
Can a portable power station back up a desktop PC? The switchover time to check, plus runtime math for office, home and gaming desktops, with the assumptions shown.
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Will a Folding Solar Panel Keep a Power Station Charged in December? State-by-State Math
A 200 W folding panel in December: how many Wh it stores in Arizona, Texas, Minnesota and Washington, and how long a 1,000 Wh station lasts when the panel falls short.
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Will a Power Station Run Starlink? Hours by Dish Wattage (20 W to 100 W)
How many Wh a Starlink dish needs for 8 or 24 hours, and which LiFePO4 power station size covers it. The math is shown, with sources.
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Will a Power Station Keep a NAS and Router Running Through an Outage?
A 4-bay NAS plus router and modem draws roughly 55 W. Here is the math for 4, 8, 12 and 24 hours, and the two things the watt-hour number does not cover.