HOUSEHOLD OUTAGE GUIDE
Power outage checklist
Prepare for the first dark hour and the third day. This guide separates immediate safety, food protection, medical needs, backup power, and the point when staying home is no longer the safest option.
PRINTABLE BASELINE
Before the outage
OUTAGE DURATION PLAN
What changes as the outage continues
Do not prepare for every outage as if it will end in one hour. Use these thresholds to make decisions before food, batteries, indoor temperature, or medical needs become urgent.
0–4 hours
Protect food and preserve battery power
- •Confirm the outage and report it to your utility.
- •Keep refrigerator and freezer doors closed.
- •Use flashlights or battery lanterns instead of candles.
- •Switch phones to low-power mode and limit unnecessary use.
4–24 hours
Move from waiting to active conservation
- •Move refrigerated perishables to a cooler with ice if they can be held at 40°F or below.
- •Prioritize backup power for medical equipment, refrigeration, communications, and temperature control.
- •Check on neighbors who may need assistance.
- •Decide early whether extreme heat, cold, or medical needs require relocation.
1–3 days
Operate as an extended outage
- •Use a written power budget instead of connecting devices at random.
- •Monitor fuel, battery capacity, food temperatures, water service, and local advisories.
- •Use shelf-stable meals before relying on refrigerated food of uncertain temperature.
- •Plan charging, cooling, or warming periods rather than attempting normal household use.
3+ days
Reassess whether staying home remains safe
- •Do not treat an uncertain restoration estimate as a guarantee.
- •Account for fuel availability, blocked roads, reduced cell service, and closed businesses.
- •Relocate before health, medication, sanitation, or indoor temperature becomes dangerous.
- •Keep family or an out-of-area contact updated on your status and location.
FOOD DECISIONS
Protect the cold, then use temperature instead of guesswork
4 hr
Approximate safe time for an unopened refrigerator.
48 hr
Approximate safe time for a full, unopened freezer.
24 hr
Approximate safe time for a half-full, unopened freezer.
- Keep doors closed. Decide what you need before opening either appliance.
- Use thermometers. Refrigerators should remain at 40°F or below and freezers at 0°F or below before the outage.
- Use a cooler correctly. Ice or frozen packs must keep perishable food at 40°F or below.
- Never taste-test safety. Food can be dangerous even when it looks or smells normal.
- When in doubt, throw it out. The cost of replacing food is lower than the consequences of foodborne illness during a disaster.
REAL-WORLD LESSONS
What experienced households repeatedly learn
These themes recur in homeowner outage accounts and align with official safety guidance. They are presented as planning lessons, not as substitutes for manufacturer instructions or local emergency direction.
The first failure is often the plan, not the equipment
Observed problem: People commonly own a generator, power station, or lantern but have not tested it under realistic loads. Extension cords are missing, batteries are discharged, fuel is stale, or the refrigerator startup demand exceeds the assumed load.
Practical action: Run a full practice test before storm season. Connect only the equipment you expect to use, record the actual load, and confirm how long your fuel or stored energy lasts.
Backup power disappears quickly when used like grid power
Observed problem: Real outage accounts repeatedly show that heating appliances, space heaters, large air conditioners, and cooking devices consume stored battery capacity far faster than lights, phones, routers, or refrigerators.
Practical action: Rank loads as life safety, food preservation, communications, comfort, and optional. Power the highest priority loads first and rotate them when practical.
Fuel and access can become the limiting factors
Observed problem: Long outages may also close gas stations, disable card readers, block roads, and create long lines. A generator that works perfectly is not a complete plan without safe fuel storage and resupply assumptions.
Practical action: Calculate expected hourly fuel use, store fuel legally and safely, rotate it according to manufacturer guidance, and establish a no-resupply operating plan.
The refrigerator door becomes a household discipline problem
Observed problem: Repeatedly checking food allows cold air to escape. People also wait too long to organize coolers, ice, and thermometers because every restoration estimate feels temporary.
Practical action: Post a note on the doors, designate one person to manage food, and decide in advance what moves to a cooler after four hours.
Internet and cell service may degrade even when devices are charged
Observed problem: Outages can affect routers, neighborhood equipment, cell sites, and overloaded networks. A charged phone does not guarantee data service.
Practical action: Keep a radio, printed contacts, offline maps, and an out-of-area check-in plan. Use text messages when voice or data service is unreliable.
LIFE-SAFETY RULES
Generator, carbon monoxide, fire, and electrical safety
Generator placement
Operate portable generators outdoors at least 20 feet from doors, windows, and vents. Never use one in a home, basement, garage, carport, or other enclosed or partly enclosed space.
Carbon monoxide detection
Use battery-operated or battery-backup carbon monoxide alarms. Headache, dizziness, weakness, nausea, chest pain, and confusion can indicate exposure. Move to fresh air and call 911 when poisoning is suspected.
Electrical connection
Never connect a portable generator directly to household wiring through a wall outlet. Use properly rated cords or a professionally installed transfer equipment or interlock system that complies with local requirements.
Fuel and refueling
Allow equipment to cool before refueling. Store fuel only in approved containers and away from living areas, ignition sources, and flood exposure.
Downed lines and standing water
Treat every downed line as energized. Stay away from it and anything it touches. Do not operate electrical equipment while standing in water.
Candles and open flame
Use battery lighting whenever possible. Candles add fire risk when households are distracted, tired, or moving through dark rooms.
MEDICAL AND TEMPERATURE PLAN
Make the relocation decision early
- Ask medical-equipment providers how the device behaves during power loss and what backup source is approved.
- Discuss refrigerated medications with a pharmacist before an emergency. Keep labels, instructions, and pharmacy contact information available.
- Notify the utility when a household member relies on critical powered medical equipment, while recognizing that registration may not guarantee faster restoration.
- Identify two places that can provide safe heating, cooling, charging, and refrigeration. Confirm transportation before roads become hazardous.
- Do not use an oven, grill, camp stove, or generator to heat indoor living space.
Frequently asked questions
How long will food stay safe when the power is out?
An unopened refrigerator keeps food safe for about four hours. A full freezer can hold a safe temperature for about 48 hours, or 24 hours when half full. Use appliance thermometers and discard unsafe perishables rather than tasting them.
What should I power first during an outage?
Prioritize life-sustaining medical equipment, safe indoor temperature, refrigeration for medications or essential food, communications, lighting, and then lower-priority comfort loads.
Can I run a generator in an open garage?
No. Opening a garage door does not make generator use safe. Portable generators belong outdoors at least 20 feet from doors, windows, and vents.
Should I leave home during a long outage?
Leave before conditions become dangerous when the household cannot maintain safe temperatures, medical equipment, refrigerated medicine, sanitation, water, or reliable access to help. Follow local emergency instructions.
Official safety references
Use local utility and emergency-management instructions during an active event. These federal resources provide the safety baseline used in this guide.