Power Outage Checklist for Canadian Homes
Quick answer: A practical power outage checklist for Canadian homes covers four things: safe light and communication, a plan for heat or cooling and medical equipment, food-temperature protection, and carbon-monoxide-safe backup power. Prepare before an outage, follow official instructions while it lasts, and restore appliances gradually after electricity returns.
Illustrative photograph. Use battery-powered flashlights instead of candles to reduce fire risk.
How this power outage checklist fits your emergency plan
A power-outage checklist is a hazard-specific companion to a broader household emergency plan. The emergency plan assigns contacts, meeting places, evacuation routes and responsibilities across many hazards. This checklist focuses on the decisions that change when electricity, heating, cooling, communications or powered medical equipment stop working.
Outages can last minutes, hours or days. They can also occur with extreme cold, heat, storms, wildfires or flooding. The Government of Canada recommends preparing to meet household needs for at least 72 hours. Remote and Northern households may need longer plans based on local guidance, access and likely restoration times.
| Phase | Priority | Useful proof of readiness |
|---|---|---|
| Before | Plan for light, information, temperature, medication, food and backup power | Working equipment, written contacts, household roles and tested alternatives |
| During | Confirm the outage, follow official information and prevent fire, CO and food hazards | Flashlights accessible, refrigerator closed, fuel-burning equipment outdoors |
| After | Restore loads gradually, assess food and property, and replenish supplies | Appliances reconnected in sequence, discarded-food decisions recorded, kit restocked |
What should you do before a power outage?
Build a portable 72-hour base kit
Start with the current federal emergency-kit checklist. It includes water, non-perishable food, a manual can opener, flashlights, radio, batteries, first aid, chargers, power banks, medication information, cash, keys and household-specific supplies. Tailor quantities and equipment for children, pets, older adults, disabilities and dietary needs.
Keep the kit accessible in the dark and portable if evacuation becomes necessary. Add seasonal supplies and check expiry dates. A calendar reminder helps, but the kit itself should have a visible last-reviewed date.
Know where official information will come from
Save the outage-reporting number and website for your electricity provider. Identify municipal and provincial or territorial alert sources, WeatherCAN or local radio, and a battery or hand-crank information option if internet service fails. A paper list belongs with the kit because a phone battery, home internet or cloud account may be unavailable.
Use the household information binder checklist to map where insurance, identification and service records are kept without placing sensitive account numbers in a browser tool.
Plan for medical, mobility and accessibility needs
If anyone relies on powered medical or assistive equipment, refrigerated medication, elevators or internet-dependent monitoring, create a specific backup plan with the relevant clinician, pharmacist, equipment provider, building manager and electricity provider. Confirm how long batteries last under real operating conditions and where the person can go if backup power fails.
Do not guess whether medication remains usable after a temperature excursion. Ask the pharmacist or manufacturer about the product’s storage limits. The personal support network map can help identify who can check in, provide transport or bring necessary supplies.
Prepare refrigerators, freezers and thermometers
Health Canada advises keeping a refrigerator at or below 4°C and a freezer at or below −18°C. Appliance thermometers make the temperature visible without relying on touch or smell. Keep freezer contents grouped, but do not overfill so air cannot circulate during normal operation. Know where coolers and safe cold sources are available if an extended outage is forecast.
Treat generators as safety equipment, not a simple appliance
Ask a licensed electrician about generator sizing, connection and any transfer equipment before an emergency. A fuel-burning portable generator must never run in a home, garage, shed, basement, crawlspace, vehicle or other enclosed area. Health Canada says to operate it at least 6 metres (20 feet) from buildings, direct exhaust away from doors and windows, and close nearby openings.
Never connect a generator to a wall outlet. A generator connection to a home electrical system requires an approved transfer panel and switch installed by a qualified electrician. Follow the manufacturer’s instructions, use properly rated equipment, and keep working carbon monoxide alarms with battery backup.
What should you do during a power outage?
- Check the immediate situation. Determine whether only your home is affected. Inspect the breaker or fuse panel only if it is dry and safe; never touch it with wet hands or while standing on a damp floor.
- Report and monitor. Contact the electricity provider and follow official outage, weather and emergency information. Avoid unnecessary calls and conserve phone power.
- Use flashlights. Avoid candles where possible because they add fire risk, especially around children, pets and sleeping areas.
- Protect equipment. Unplug tools, appliances and electronics. Leave one light on so you know when power returns. Follow utility or government guidance for heating controls and major appliances.
- Keep cold-air doors closed. Open the refrigerator and freezer only when necessary. Do not repeatedly check food by opening the door.
- Watch indoor temperature and health needs. Prepare to leave if extreme heat, cold, medical dependency, poor air quality or another condition makes the home unsafe.
- Prevent carbon monoxide exposure. Never use a barbecue, camping stove, portable fuel burner or outdoor heater indoors. Do not idle a vehicle in a garage, even with the garage door open.
If a carbon monoxide alarm sounds, move everyone to fresh air, call emergency services from outside and do not re-enter until a qualified professional says it is safe. Carbon monoxide cannot be reliably seen, smelled or tasted.
How long will refrigerated and frozen food stay cold?
Time estimates are planning guides, not guarantees. Temperature, appliance condition, how full it is and how often the door opens all matter. Use appliance thermometers and current Health Canada guidance rather than smell alone.
| Storage | Current federal planning estimate | Action |
|---|---|---|
| Unopened refrigerator | About 4 hours | Keep the door closed and check the thermometer when assessing food |
| Full unopened freezer | About 48 hours | Keep closed; food with ice crystals or that remains refrigerator-cold may be refrozen |
| Half-full unopened freezer | About 24 hours | Keep closed and apply the same temperature-based assessment |
Health Canada advises discarding food that has been at room temperature for two hours or more and warns that contaminated food may not look or smell spoiled. Do not place food outdoors, even in winter: temperatures vary and animals or environmental contamination can make it unsafe. When in doubt about perishable food, discard it.
Listen to local authorities about drinking-water safety. An outage by itself does not always make tap water unsafe, but related flooding, pressure loss or treatment disruption can trigger local instructions. A private well with an electric pump needs its own plan: Health Canada advises avoiding water use if doing so would depressurize the system, and testing the well before use if all pressure is lost or no water comes from the faucets.
What should you do after power returns?
Give the electrical system time to stabilize. Current federal guidance says to reconnect the heating system first, then the refrigerator and freezer, and wait 10–15 minutes before reconnecting other appliances and electronics. Confirm that an electric water heater is filled before restoring its power. Follow utility, manufacturer and electrician instructions where they differ.
Stay away from downed lines and report them. Check for water, fire, electrical or structural damage before touching affected equipment. Assess food using temperature and official guidance. Photograph material property damage and retain relevant records; the home inventory checklist can help organize the item record without promising claim acceptance.
Finally, recharge power banks, replace used water and food, reset clocks and alarms, and record what failed. A short after-action review should answer: Which supply ran out? Which contact was hard to find? Which battery underperformed? Which person needed more support? Turn those observations into dated actions, and carry the owners and due dates into a monthly personal review rather than relying on memory.
Build your power-outage readiness board
This browser-local tool asks only for readiness statuses and a review date. Its own code does not transmit your selections or save them in browser storage. It creates a prioritized list on this page that you can copy or download as a TXT file. This is not a safety inspection, electrical assessment, medical plan or food-safety determination.
Check ten outage preparations
Your outage-preparation actions
Verify every action against current local authorities, your electricity provider, equipment instructions and relevant professionals.
Frequently asked questions
Should I use candles during a power outage?
Use battery-powered flashlights when possible. Canadian guidance recommends flashlights rather than candles to reduce fire risk.
Can I use a barbecue or camping stove inside?
No. Outdoor fuel-burning cooking and heating equipment can produce deadly carbon monoxide. Never use it inside a home, garage, shed, basement, vehicle, camper or tent.
How far should a portable fuel-burning generator be from a building?
Health Canada currently advises at least 6 metres (20 feet), with exhaust directed away from windows and doors. Close openings near or downwind from the generator and follow the manufacturer’s instructions.
Can I plug a generator into a wall outlet?
No. Never backfeed a home through a wall outlet. Connection to a home electrical system requires approved transfer equipment installed by a qualified electrician.
How long does an unopened refrigerator stay cold?
Health Canada’s planning estimate is about four hours. Actual temperature matters, so keep the door closed and use a refrigerator thermometer when assessing food.
Should frozen food be placed outdoors in winter?
No. Health Canada advises against it because outdoor temperature can vary and animals, snow, soil or other contamination can affect the food.
What if someone depends on powered medical equipment?
Create a specific plan before an outage with the clinician, equipment supplier, building manager and electricity provider as applicable. Confirm battery duration, alternate power, transport and a safe destination.
When should a household leave during an outage?
Leave when authorities order it or the home becomes unsafe because of carbon monoxide, fire, flooding, extreme temperature, medical dependency or another hazard. Take the emergency kit and follow official routes and instructions.
Sources and evidence limits
- Government of Canada: Power outages—how to prepare
- Health Canada: Food and drinking-water safety in an emergency
- Health Canada: Preventing carbon monoxide exposure
- Government of Canada: Emergency-kit checklist
- Government of Canada: Emergency preparedness for persons with disabilities
- Health Canada: Well safety during and after emergencies
Evidence reviewed: November 3, 2026. Rules, utility procedures, product instructions and local risks can change. This general guide does not replace an electrician, clinician, pharmacist, utility, insurer or emergency authority.
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