Why Winter Power Cuts Deserve a Plan Now
A winter power cut rarely announces itself politely. One minute the heating is humming and the kettle is boiling; the next, an ice-laden branch has taken down a line three streets away and your whole house has gone dark and cold. Most cuts are fixed within a few hours, but winter storms can leave some homes without power for a day or two, and occasionally longer — especially in rural areas, where repair crews have further to travel and more damage to clear.
This week is the perfect moment to get ready. Winter Weather Preparedness Week runs from 8 to 14 November 2026, and the UK government's Be Ready campaign — launched on 22 October 2026 — is urging households to prepare now, while the shops are stocked and the weather is still calm. The advice is consistent everywhere: build a kit that covers three days, know how you will stay warm, and never improvise with anything that burns fuel indoors.
The stakes are higher in winter than in any other season. Without power you lose heating, light, hot water, cooking, phone charging and, in many homes, the water supply itself if you rely on an electric pump. A closed refrigerator keeps food cold for only about four hours, and a full freezer for about 48 hours. Pipes can begin freezing within hours once indoor temperatures fall below freezing. And every year, carbon monoxide poisoning claims lives during winter outages — almost always because someone ran a generator, grill or camp stove indoors, or tried to heat the house with a gas oven.
None of this needs to be frightening, and none of it needs to be expensive. A calm, methodical plan made on a quiet weekend in November costs far less — in money and in stress — than the same shopping done in a panic during a storm warning. This guide walks through it step by step: what to keep, where to keep it, how to stay warm safely, how to protect your food and pipes, and exactly what to do when the lights go out.
The 72-Hour Rule: What "Prepared" Actually Means
Every major preparedness agency — from the US Federal Emergency Management Agency's Ready.gov programme to the UK Cabinet Office's Be Ready checklist — now works to the same standard: be ready to look after yourself for three days without outside help. Three days is not a random number. It is roughly how long it takes for support to reach the people who need it most after a widespread storm, and it is the window within which most storm-related outages are repaired.
Three days of readiness means three days of drinking water, three days of food that needs no cooking or refrigeration, three days of light, warmth and essential medication, and a way to stay informed and in contact. It does not mean stockpiling a month of supplies or filling a spare room with tins. For most households it fits in one sturdy box and one shelf of the pantry.
Start by listing what in your home actually needs electricity. Walk through each room with a notepad and write down everything that stops working in a cut: heating, lights, cooker, kettle, fridge, freezer, water pump, Wi-Fi router, phone chargers, medical devices, garage door, stair lift, security system. The list is usually longer than people expect, and it tells you exactly what your kit has to cover. Note anything that is genuinely life-critical — powered medical equipment, refrigerated medicine — and deal with those items first, because they need a plan of their own rather than a generic kit.
Then agree the plan with everyone in the household: where the kit is kept, which room becomes the warm room, and who calls the network operator. A plan nobody else knows about is barely a plan at all, and a five-minute conversation now saves a confused, cold argument later.
Build Your Winter Power-Cut Kit
Keep the kit in one place, in a box or bag everyone can find in the dark. A hallway cupboard or the bottom of the stairs works well — somewhere you can reach without a torch, because the first thing you will need in a cut is the torch that is inside the box. Check the kit every six months, when the clocks change, and replace anything that has expired or been borrowed.
Light: torches beat candles every time
Put a torch in the kit for every person in the household, plus one spare, with a set of spare batteries for each. Head torches are worth their weight in gold during a power cut because they leave both hands free for cooking, reading or fixing things. A wind-up or solar torch is a useful backup because it never needs batteries at all.
Candles feel traditional, but every preparedness agency now advises against them during an outage. A house full of people moving around in the dark, with blankets, pets and children, is exactly when a knocked-over candle starts a fire — and with the power out, your smoke alarms may be running on their backup batteries alone. If you do keep candles, store them with a stable holder, a lighter and matches, and never leave them burning in an empty room.
Add a battery-powered or wind-up FM radio: when mobile networks are congested, local radio is often the fastest source of storm updates and restoration times.
Warmth: blankets, layers and one warm room
Store two warm blankets or sleeping bags per person, plus warm socks, hats and gloves, in or beside the kit. A house without heating cools surprisingly fast — within a few hours on a cold night — and the cheapest warmth available is the clothing you already own. Thin layers trap air better than one thick jumper, so pack layers rather than bulk.
A roll of heavy-duty tape and a few bin bags are unexpectedly useful: taped over a draughty window frame or stuffed around a door gap, they cut the cold air leaking into your warm room. A rolled-up towel under the door works as a draught excluder.
Water: three litres per person per day
Store bottled water at roughly three litres per person per day for three days, just for drinking — more if you also need water for cooking, washing or flushing. A family of four therefore needs about 36 litres, which is three cases of large bottles and fits easily under a bed or on a garage shelf. Rotate the stock every six months so it stays fresh.
If your water comes from a private well with an electric pump, the taps will stop when the power does, so your stored water is your only supply — store extra. Households on mains water usually keep their supply during a cut, but pressure can drop, so the same three-day store is still the safe baseline.
Food: three days that need no cooking
Choose food your household will actually eat, that keeps without refrigeration and needs no cooking: tinned fish and beans, crackers, cereal bars, peanut butter, dried fruit, nuts, long-life milk, cereal and biscuits. A manual can opener is essential — an electric one is useless in a cut, and many households no longer own a manual one. Check yours works before you need it.
Keep a flask in the kit: fill it with hot water when a storm warning is issued and you have hot drinks for hours. Any stove that burns fuel is for outdoor use only.
Power: banks, batteries and a charging routine
Keep at least one fully charged power bank per phone, and make a habit of recharging them on the first of every month. A power bank that has sat flat in a drawer for a year is no help to anyone. When a storm warning is issued, charge every phone, tablet and power bank to 100 percent, and switch phones to low-power mode as soon as the cut begins.
A small solar charger is a good backup for longer outages, and a car charger cable turns your car into an emergency charging point — run the engine outdoors, never in a closed garage. Keep a torch, batteries and a phone charger in the car as well as in the house kit.
First aid, medication and documents
A basic first-aid kit — plasters, bandages, antiseptic, painkillers, any prescription medication your household needs — belongs in the box, with a written list of medication names and doses. In a cut you cannot look doses up online, and a pharmacist may be unreachable. Keep at least a week's supply of essential medication in the house through winter, and ask your doctor or pharmacist what to do if a medicine normally needs refrigeration.
Put copies of important documents in a waterproof bag: identification, insurance details, a list of emergency contacts and your energy network's phone number. Keep some cash in small notes, too — card machines and cash machines both need power, and a corner shop running on a generator may be cash-only.
Babies, children and pets
If you have a baby, add formula, nappies, wipes and a spare set of warm clothes to the kit, plus a flask of hot water for warming bottles. For older children, pack a few books or card games; boredom is the first casualty of a long dark evening. Pets need the same three days of food and water as people, plus any medication and a blanket — and their water bowl should move into the warm room so it does not freeze.
Keep Warm Without Power
The single most effective warmth strategy in a power cut is also the simplest: shrink the space you are trying to keep warm. Choose one small, well-insulated room — ideally an interior room with few windows, or a living room with a fireplace — and make it your warm room for the duration. Close its door, hang a blanket over the doorway if there is no door, close the curtains, and put rolled towels along the bottom of the door and window frames. Everyone sleeps in that room, together, in sleeping bags or under layers of blankets.
Dress in thin layers and keep moving gently. A short walk around the house, a few stretches or a game with the children generates real body heat. Avoid alcohol — it makes you feel warm while actually lowering your core temperature — and eat regularly, because your body burns food to make heat. Hot drinks from a flask help enormously, even if they are just hot water with a little sugar.
If you have a fireplace or wood stove, it is your best friend in a power cut — but only if it has been swept and checked before winter. A blocked chimney is a carbon monoxide risk, and a fire lit in a dirty flue can set the chimney itself alight. Keep a supply of dry wood and kindling ready through winter, and never leave a fire burning unattended overnight. Portable electric heaters are useless without power, and gas or paraffin heaters used indoors without proper ventilation are dangerous — if you own one, read its instructions now, not during a storm, and make sure you have a working carbon monoxide alarm in the room.
Health guidance suggests keeping the rooms you use most at 18°C (64°F) when you can; during a cut, aim to keep your warm room above 15°C (59°F). Take extra care of older people, babies and anyone with a health condition, who lose body heat faster. If you cannot warm the house, go to a relative or friend with heating, or to a public warming centre if one has opened — do not tough it out in a freezing house.
Protect Your Food and Fridge
When the power goes, your fridge and freezer become insulated boxes with a strict countdown. A closed refrigerator keeps food cold for about four hours; a full freezer holds its temperature for about 48 hours, and a half-full freezer for about 24 hours. Every time you open the door you let cold air out and shorten that window, so decide what you need, take it in one trip, and shut the door.
Before a storm, turn your fridge and freezer to their coldest settings, and freeze bottles of water or bags of ice to act as cold blocks. A freezer packed tight with frozen bottles stays cold far longer than a half-empty one — fill empty space with bottles of water now, while you still can. Group food together inside the freezer, because a dense block of frozen food warms more slowly than scattered items.
During the cut, keep a thermometer in the fridge if you have one: food is safe while it stays below 4°C (40°F). After four hours without power, throw away perishable food from the fridge — meat, fish, eggs, milk, cut fruit and vegetables and leftovers. When in doubt, throw it out; food poisoning is a miserable companion to a power cut. Frozen food that still contains ice crystals can be refrozen safely; food that has fully thawed and warmed should be cooked immediately or discarded.
After power returns, check the fridge and freezer temperatures, discard anything questionable, and restock gradually. If you were away during the cut, look for the tell-tale signs: a puddle under the freezer or food that has slumped or refrozen into odd shapes.
Protect Your Pipes When the Heating Dies
Frozen pipes are the most expensive consequence of a winter power cut, and they are also one of the most preventable. Water expands as it freezes, and a burst pipe can release hundreds of litres into a house before anyone notices — often while the power is still out and the heating cannot be restarted.
Before winter, know where your main stopcock is and make sure you can turn it. Label it, tell everyone in the household, and check it actually moves — stopcocks seize up after years of disuse, and discovering that during a flood is the worst possible moment. Insulate exposed pipes in the loft, garage and under the house with foam sleeves, and fix dripping taps, because a slow drip can freeze into a blockage.
During a cut, open the loft hatch a crack so warm air from the house reaches the pipes up there, and let the cold tap in the kitchen drip very slightly if temperatures are well below freezing — moving water freezes more slowly than still water. Keep the cupboard doors under sinks open so warm room air can reach the pipes inside. If you have to leave the house during a long outage in freezing weather, turn off the water at the stopcock and drain the system by opening the lowest tap — an empty pipe cannot burst.
When the power returns, check every tap, radiator and visible pipe. Turn the water back on slowly, listen for hissing behind walls, and watch for damp patches over the next day — a small leak caught in the first hour is a mop; the same leak found a week later is a ceiling replacement.
Backup Power: Generators and Power Stations
A portable generator can keep a fridge running, charge phones and power a few lights through a long outage — but it is also the single most dangerous item in this whole guide if used wrongly. Every year, people die from carbon monoxide poisoning because a generator was run in a garage, on a porch or too close to a window. The rule is absolute: a generator runs outdoors only, at least 20 feet (6 metres) from your home, with its exhaust pointing away from doors, windows and vents. Never run one in a garage, even with the door open, and never under a porch roof.
If you own a generator, test it before winter: start it, run it for ten minutes under a small load, check the oil and fuel, and make sure you know how to connect it. Connect it through an extension lead to individual appliances — never plug a generator directly into a wall socket, which can send power back into the grid and endanger repair crews. Store fuel in an approved container outdoors and rotate it so it stays fresh.
A portable power station — a large rechargeable battery with plug sockets — is the quieter, safer alternative. It produces no fumes, so it can sit in the warm room beside you, charging phones, running a lamp or powering a laptop. The trade-off is capacity: a small station runs a few phones and a lamp for a day or two, while a fridge needs a much larger unit. Size yours to your most important two or three devices — usually the fridge, a phone charger and one light.
Whatever backup power you choose, install battery-powered carbon monoxide detectors on every level of your home, and test them monthly. A detector with a digital display is worth the small extra cost because it shows rising levels before the alarm sounds. This is the one purchase in this guide that can genuinely save a life, and it works whether or not you ever buy a generator.
Stay Connected and Informed
In a power cut, information is almost as important as warmth. Sign up for outage alerts from your energy network now — most offer free text or email alerts, and they will tell you when a cut is reported, what caused it and when repairs are expected. In the UK, the number to report a power cut is 105, free from any phone; in the US, your utility's outage line is printed on your bill, so save it in your phone and write it on paper too.
Keep a battery or wind-up radio in the kit, tuned to your local station, and keep a paper list of important numbers: your energy network, your water company, your insurer, your doctor, a relative nearby and a neighbour. When your phone battery is low, switch it to low-power mode, turn off mobile data and Bluetooth, and use it in short bursts — a two-minute call to check on an elderly relative, then back in your pocket.
Medical Needs, Babies and Pets
Households with medical needs should prepare first and prepare differently. If anyone depends on powered medical equipment — an oxygen concentrator, a CPAP machine, a powered wheelchair, a stair lift — contact your energy network now and ask about their priority register. In the UK this is the free Priority Services Register; in the US most utilities keep a similar medical-priority list. Registration means you get advance warning of planned outages, priority updates during a cut and, in some areas, extra support — but it does not guarantee your power stays on, so you still need your own plan.
Ask your doctor or equipment supplier how long the device runs on its own battery, and whether a portable power station would cover it. Keep the equipment's manual, charger and spare batteries in the kit, and know the number to call for an urgent replacement. For refrigerated medicine, a small cool bag with ice packs keeps it cold for several hours; your pharmacist can tell you how long each medicine stays safe at room temperature, so ask before winter rather than during a storm.
Babies lose heat faster than adults, so keep a baby in the warm room, dressed in layers with a hat, and check their chest regularly — a cold chest means they need more warmth. Pets are the same: move their bed and water bowl into the warm room, keep three days of food and medication ready, and never leave an animal in an unheated outbuilding during a freeze.
A One-Weekend Prep Plan
You do not need to do everything at once. One focused weekend in November is enough to go from unprepared to ready — and spreading the cost over a normal weekly shop keeps it affordable.
Saturday morning: the audit
Walk the house with a notepad and list everything that needs electricity. Find the stopcock and check it turns. Test every torch and replace dead batteries. Check the smoke and carbon monoxide alarms. Write down the numbers for your energy network, insurer and doctor.
Saturday afternoon: the kit
Gather the kit — torches, batteries, a radio, blankets, a first-aid kit, a manual can opener, a power bank and a waterproof bag for documents — into one box in the hallway cupboard, labelled so anyone can find it in the dark.
Sunday morning: water and food
Buy three days of bottled water and no-cook food on the normal weekly shop. Freeze two or three bottles of water for the freezer. Fill two flasks with hot water and check they still keep it hot. Charge every phone and power bank to full.
Sunday afternoon: the warm room and the conversation
Choose the warm room. Check its door closes properly and its curtains are heavy enough to hold heat. Make sure there is a blanket or sleeping bag for everyone. Then sit the household down for five minutes and agree the plan: where the kit is, which room is the warm room, who calls the network operator, and where you meet if phones die.
The six-month habit
When the clocks change in spring and autumn, check the kit: replace expired food, water and batteries, test the alarms, and update the phone numbers. A kit that is checked twice a year is a kit you can trust; a kit that is built once and forgotten is a box of dead batteries.
What to Do When the Lights Go Out
The first minute matters most, because calm decisions now prevent expensive mistakes later. Stay where you are for a moment and let your eyes adjust. Reach for the torch — not a candle — and check whether the cut affects only your house or the whole street. If your neighbours are dark too, it is a network fault; if only your house is out, check the fuse box or trip switch before calling anyone.
Call or text your energy network to report the cut, or check their outage map if you have signal. Then turn off or unplug sensitive electronics — televisions, computers, the oven, irons and electric fires — so they do not switch back on unattended when power returns, and so a surge cannot damage them. Leave one light switched on so you will know immediately when power is restored.
Move everyone into the warm room, close its door and curtains, and get the blankets out. Keep the fridge and freezer doors shut. Put a torch in each room you are using and check the carbon monoxide detector is working. If you run a generator, put it outside now — 20 feet from the house, exhaust pointing away — and never bring it in, even for a minute, even in the rain.
While you wait, conserve phone battery and listen to the radio for updates. If the house is getting dangerously cold, or anyone is unwell, go to a relative with heating or a public warming centre. When power returns, switch appliances back on one at a time, check the fridge and freezer, and look for leaks around pipes and radiators over the next day.
Seven Mistakes That Make a Power Cut Worse
1. Running a generator or grill indoors
This is the mistake that kills. Generators, camp stoves, charcoal grills and patio heaters produce carbon monoxide — a gas you cannot see or smell — and they have no place inside a house, a garage, a porch or a tent. Outdoors only, 20 feet from the building, every time.
2. Heating the house with a gas oven
A gas oven or hob left on for heat produces carbon monoxide and can set fire to anything left nearby. It also heats very unevenly, warming the kitchen while the pipes in the loft freeze. Use blankets and one warm room instead.
3. Opening the fridge to check on the food
Every opening lets cold air out and shortens the safe window. Decide what you need, take it in one trip and shut the door. If you are unsure whether food is still safe, use a thermometer or the four-hour rule — and when in doubt, throw it out.
4. Forgetting the pipes
Heating is the first thing people think about; pipes are the last, and they are the most expensive failure. Know the stopcock, insulate exposed pipes before winter, and let a tap drip in a hard freeze. A burst pipe can cause thousands in damage in a single night.
5. Draining every battery in the first hour
Streaming video, scrolling news and leaving Bluetooth on will flatten a phone in a few hours. Switch to low-power mode immediately, use the phone in short bursts, and keep the power bank for essential calls.
6. Buying everything during the storm warning
Shelves empty fast once a forecast turns serious, prices rise, and you will buy the wrong things in a rush. A kit built on a calm weekend costs less and works better than the same kit assembled in a panic.
7. Assuming the priority register keeps your power on
Priority registers — the UK's Priority Services Register and US utilities' medical lists — bring advance warnings and extra updates, but they cannot keep an individual house powered during a network fault. Register, by all means, but still build your own kit.
Backup Power Compared: Generator, Power Station or Nothing
A portable generator gives the most power for the money and can run a fridge, but it needs fuel, makes noise and fumes, must live outdoors, and is dangerous if misused. A portable power station is silent, safe indoors and simple to use, but it costs more per watt-hour and will not run a fridge for long unless it is a large unit. Doing nothing costs nothing — and for a household in a flat with reliable networks and neighbours close by, a good kit of torches, blankets, food and water may be genuinely enough for the short cuts that are most common.
The honest answer depends on your home. A rural house, a household with powered medical equipment, or a family with a baby has a strong case for a power station at minimum; a city flat with a gas cooker and a fireplace may need neither. Whatever you choose, buy it before winter and test it — a generator still in its box on the day of the storm is just an expensive paperweight.
Frequently Asked Questions
How long does a power cut usually last in winter?
Most cuts are fixed within a few hours — a blown fuse, a fallen branch, a local fault. Storm-related outages affecting whole areas can last a day or two, and in severe weather or remote areas occasionally longer. The three-day kit standard exists because that is roughly how long support takes to reach everyone after a widespread storm.
How much water should I store for a power cut?
About three litres of drinking water per person per day for three days, plus a little extra for washing and cooking — around 36 litres for a family of four. Rotate the stock every six months, and store extra if you rely on a well with an electric pump.
Is it safe to use candles during a power cut?
Candles work, but torches are safer: people moving around in the dark knock candles over, and a fire during a power cut is harder to deal with. If you use candles, keep them in stable holders and never leave them burning in an empty room.
Can I run a generator in my garage with the door open?
No. A generator must run outdoors, at least 20 feet (6 metres) from your home, with the exhaust pointing away from doors, windows and vents. A garage — even with the door open — traps carbon monoxide, which is colourless, odourless and deadly. The same applies to porches, carports and tents.
Will my freezer food survive a 24-hour power cut?
A full, unopened freezer holds its temperature for about 48 hours; a half-full one for about 24 hours. Keep the door shut, and check afterwards: food that still contains ice crystals can be refrozen, but anything fully thawed and warm should be cooked immediately or thrown away. Freezing bottles of water in advance gives you a longer safety margin.
What number do I call to report a power cut?
In the UK, call 105 free from any phone to reach your local electricity network operator. In the US, call your utility's outage line, printed on your bill — save it in your phone and write it on paper now, before you need it. Registering for outage alerts by text is the fastest way to get restoration updates.
The Bottom Line
A winter power cut is one of the few household emergencies you can prepare for almost entirely in advance, cheaply, and on a single quiet weekend. The kit is simple — light, warmth, water, food, a charged phone and a working carbon monoxide alarm — and the plan is simpler still: one warm room, shut doors, and no fuel-burning equipment indoors, ever. Winter Weather Preparedness Week, running 8 to 14 November 2026, is the reminder; the calm weekend before the first real storm is the moment to act. Build the kit now, check it when the clocks change, and the next time the lights go out you will be the calmest household on the street.
