Blackout Sizer Calculator
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Backup power: Home office, working day

A laptop and router for a full day fit in a 500–700 Wh station with margin to spare.

What is included

WhWh
Laptop508280
Wi-Fi router + modem/ONU1210120
Desktop PC + monitor20000
LED lighting (5 bulbs)404160
Smartphone charging15115

Your numbers

Energy per outage
575 Wh
575 Wh per day
Peak power
132 W
117 W
Battery needed
872 Wh
Solar to recharge daily (winter)
384 W

Three setups

Minimum

Covers critical appliances only
Bluetti AC50B
448 Wh · 700 W (1000 W peak)
→

Comfort

Everything you ticked, full outage
Pecron F1000LFP
960 Wh · 1500 W (1500 W peak)
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Autonomy

Expandable system + solar or generator
EcoFlow DELTA 2
1024 Wh · 1800 W (2700 W peak)
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