Blackout Sizer Calculator
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Backup power: Apartment, 4-hour outage schedule

Two 4-hour blackouts a day: keep the fridge cold, stay online and have light in the evening. The station recharges from the grid between blocks.

What is included

WhWh
Refrigerator (with freezer)120241008
Wi-Fi router + modem/ONU1224288
LED lighting (5 bulbs)404160
Laptop504140
Smartphone charging15230
TV 50"752150

Your numbers

Energy per outage
592 Wh
1776 Wh per day
Peak power
792 W
312 W
Battery needed
897 Wh
Solar to recharge daily (winter)
1184 W

Three setups

Minimum

Covers critical appliances only
Bluetti AC70
768 Wh · 1000 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 3 Plus
1024 Wh · 1800 W (3600 W peak)
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