Power-outage planner

What has to stay on, and what will it take?

List the things your household cannot do without in an outage. Watts are on the device label or its power adapter. Tick Motor for anything with a motor or compressor. Nothing you type here is saved; Plus keeps the list in your book.

Typical running watts (check your label)

Phone charging 10 W
Wi-Fi router + modem 20 W
LED lamp 10 W
Laptop 60 W
CPAP (no heated humidifier) 40 W
Oxygen concentrator 300 W · motor
Refrigerator (average running) 150 W · motor
Sump pump (while it runs) 800 W · motor
Gas furnace blower 500 W · motor
TV 100 W

Device 1 Watts Hours a day Device 1 has a motor

Device 2 Watts Hours a day Device 2 has a motor

Device 3 Watts Hours a day Device 3 has a motor

Device 4 Watts Hours a day Device 4 has a motor

Device 5 Watts Hours a day Device 5 has a motor

Device 6 Watts Hours a day Device 6 has a motor

Days without power

Example: phone, router and a CPAP

Per day: 830 Wh
Battery for 1 day: 977 Wh
Generator: 70 W

Medical equipment: ask your supplier how long its own battery lasts, and tell your electric company if someone at home depends on powered medical equipment. This is arithmetic for planning, not electrical advice; a generator connected to house wiring needs a licensed electrician and a transfer switch.

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