A power outage checklist helps you respond quickly and safely when the lights go out. Whether it's a brief 2-hour outage or an extended 3-7 day emergency, this interactive checklist covers immediate actions, essential supplies, generator safety, and food safety guidelines. Check off items as you prepare.
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How to Prepare for a Power Outage
The best time to use this power outage checklist is before an outage occurs, not during one. Work through the preparation sections now so that when the power goes out — from a storm, grid failure, or other cause — you have everything in place to stay safe and comfortable.
Immediate actions when power goes out
First, check if it's localized to your home (check the breaker) or widespread (check neighbors). Report the outage to your utility company — they often need individual reports to map the extent of an outage. Unplug or turn off major appliances to prevent damage from power surges when electricity is restored.
Food safety during an extended outage
This is the most critical safety issue in extended outages. Keep refrigerator doors closed — the contents remain safe for approximately 4 hours. A full freezer maintains safe temperatures for 48 hours; a half-full freezer for about 24 hours. Never taste food to determine if it's safe. Use a food thermometer — anything above 40°F for more than 2 hours should be discarded.
Generator safety rules
Carbon monoxide poisoning kills dozens of people each year during power outages from improper generator use. Run generators outdoors, at least 20 feet from windows and doors. Never run one in a garage, even with the door open. Install battery-operated CO detectors on every floor. Connect appliances directly to the generator with heavy-duty extension cords — never connect to your home's wiring.
FAQ
Is this power outage checklist free?
Yes, completely free with no signup required. Your progress saves in your browser.
How long can food stay safe in a power outage?
A refrigerator keeps food safe for about 4 hours if the door is kept closed. A full freezer stays safe for 48 hours, a half-full freezer for 24 hours. Never taste food to determine safety — when in doubt, throw it out.
Is it safe to use a generator indoors?
Never run a generator indoors, in a garage, or within 20 feet of windows, doors, or vents. Generator exhaust contains carbon monoxide, which is odorless and can be lethal. Install a battery-operated CO detector that alarms when CO reaches dangerous levels.
What should I do first when the power goes out?
Check if your neighbors have power (localized outage vs. widespread). Call your utility company to report the outage. Turn off or unplug major appliances to prevent surge damage when power returns. Keep the refrigerator and freezer closed to preserve temperature.
What temperature is unsafe for people during an outage?
Extreme heat (above 90°F indoors) or extreme cold (below 55°F) is dangerous, especially for elderly, children, and those with medical conditions. Know the location of your nearest cooling center or warming shelter, and don't hesitate to use them.