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Power station runtime calculator

List what you will run and for how long. It works out the battery, output and solar you need, and every station that fits, cheapest first.

Fridge
LED lights
Phone
Laptop

Watts are typical averages; the label on your device wins. Set sun to 0 to size the battery alone.

You use
1,760 Wh
a day
Battery you need
2,071 Wh
1 day, 15% conversion loss
Output you need
140 W
600 W to start the biggest
Solar to keep up
none
add sun hours to size it

23 stations fit, cheapest first

BLUETTI Elite 200 V22,074 Wh · 2,600 W · 1,000 W solar · 24 hours of this load$899EcoFlow DELTA 3 Ultra3,072 Wh · 3,600 W · 800 W solar · 36 hours of this load$1,349BLUETTI Elite 4003,840 Wh · 2,600 W · 1,000 W solar · 45 hours of this load$1,399Jackery HomePower 30003,072 Wh · 3,600 W · 1,000 W solar · 36 hours of this load$1,499BLUETTI Premium 200 V22,074 Wh · 2,700 W · 1,000 W solar · 24 hours of this load$1,549BLUETTI Apex 3002,765 Wh · 3,840 W · 2,400 W solar · 32 hours of this load$1,599EcoFlow DELTA 3 Ultra Plus3,072 Wh · 3,600 W · 1,600 W solar · 36 hours of this load$1,599BLUETTI Elite 3003,014 Wh · 2,400 W · 1,200 W solar · 35 hours of this load$1,699

Quick answers

How big a power station do I need for this?

About 2,071 Wh of battery for 1 day (1,760 Wh a day plus 15% conversion loss), with at least 140 W of output. 23 stations we track fit; the cheapest today is the BLUETTI Elite 200 V2.

How do you work it out?

Each item's watts times its hours a day gives watt-hours. The battery must hold that for each day without recharging, divided by 0.85 for conversion loss. Solar needed is a day's use divided by the hours of good sun, with panels at 70% of their rating.

We may earn a commission if you buy through these links. It never changes a verdict. How the math works.