Power cut: what to do
Sources awaiting check

Your home in a power cut: household plan
Worked example
For 2 adults, 1 older person, 1 child, 1 pet, with a telecare alarm; gas boiler, electric cooker and a landline through the broadband router:
- Stops working: gas boiler (combi or system), electric or induction hob and oven, landline that plugs into your broadband router, broadband and wifi router, fridge and freezer, lights.
- First hour: 7 steps, starting "Check whether it's just your home: look at your fuse box for a tripped switch, and see if neighbours' lights are off too."
- Who to call: 105 (power cut helpline (great britain)), 999 (emergency services), 111 (nhs non-emergency help).
- Kit to keep: 14 items, with the everyday ones marked so you can check what you already have.
Source: National Grid, awaiting check; Power Cut 105, awaiting check; gov.uk Prepare, awaiting check; Ofcom, awaiting check; Food Standards Agency, awaiting check; Priority Services Register, awaiting check; British Red Cross, awaiting check; NHS, awaiting check
This guide is for anyone whose power has just gone off, or who wants to know what to do next time. It follows official advice from gov.uk Prepare and the electricity network operators. The plan above turns the same advice into steps for your own home.
The short answer
- Check whether it's just your home: look at your fuse box and at your neighbours' lights.
- If it isn't a tripped switch, call 105 or check your network operator's website for updates.
- Use torches or battery lanterns, not candles.
- Switch off anything that could be dangerous if it came back on while you're not watching. Leave one light on.
- Keep the fridge and freezer doors closed.
If anyone is in danger, call 999.
Is it just your home?
Start with your fuse box (also called a consumer unit). If a switch has tripped, the problem may be inside your home rather than on the network.
Then look outside. If your neighbours' lights and street lights are off too, it's likely to be a wider power cut.
Who to call
Call 105. It puts you through to your local network operator: the company that runs the cables to your home and fixes power cuts. That's usually not the company you pay your bill to.
You can also check your network operator's website for updates. Our who to call finder links to the right operator for England, Wales, Scotland and Northern Ireland.
The first hour
- Light: use torches or battery lanterns rather than candles.
- Appliances: switch off things that could be dangerous if they came back on unattended, such as hobs, heaters and irons. Leave one light switched on so you know when the power's back.
- Food: keep the fridge and freezer doors closed.
- Neighbours: check on anyone nearby who may need help, especially older people or anyone living alone.
Keeping warm, fed and in touch
Warmth. Many heating systems need electricity, including most gas boilers. Keep warm in one room: close doors and curtains, wear layers and use blankets. Never use a gas oven, hob, barbecue or camping stove to heat a room. See does a gas boiler work in a power cut?
Food and drink. Eat food that doesn't need cooking. If your water supply is affected too, drink your stored water. Our no-cook food planner helps you plan ahead.
Phones. Save battery: turn on low-power mode and top up from a power bank. A landline that plugs into your broadband router stops working when the router loses power, unless it has a battery backup.
News. Listen to local radio on a battery or wind-up radio for updates.
If someone at home needs extra help
If anyone relies on medical equipment, check it's running on its battery and follow the backup plan agreed with your supplier. If someone's health is at risk, call 999.
If someone has a telecare or personal alarm, check it still has power and signal. If it doesn't, make sure they have a charged mobile to hand.
For babies, use ready-made formula from your kit if you can't sterilise bottles or boil water. Keep pets in a warm room with water and their usual food.
The Priority Services Register is free. It tells your network operator that your household may need extra help in a power cut. You join through your energy supplier or network operator.
When the power comes back
- Switch appliances back on one at a time.
- Check the Food Standards Agency's advice before eating chilled or frozen food.
- Restock your torch batteries, power bank and anything you used from your kit.
When to get help
- Immediate danger: call 999.
- Worried about someone's health: call NHS 111.
- The power cut itself: call 105 or contact your network operator.
- Medical equipment: contact your equipment supplier.
This guide follows official advice. It can't tell you when your power will come back: your network operator's updates are the place for that.
FAQs
What should I do first when the power goes out?
Check your fuse box for a tripped switch and see whether your neighbours have power. If it's not just you, call 105.
Should I unplug electronics during a power cut?
Switch off anything that could be dangerous if it came back on while you're not watching, such as hobs, heaters and irons. Leave one light on so you know when the power has returned.
Is it safe to use candles?
Official advice is to use torches or battery lanterns rather than candles.
What should I do if the power goes out while I'm cooking?
Switch the cooker off so it doesn't come back on unattended. Then eat food that doesn't need cooking.
How can I prepare for a power cut at night?
Keep a torch where you can find it in the dark, with spare batteries. Our power cut checklist covers the rest.
Tools for this
- Who to call in a power cutPick where you live and get the number to call, a link to find your local network operator, and where to report a cut or check for updates.
- What stops working in a power cutTick what your home has, from the boiler to the landline, and see what stops in a power cut, what may keep going and what to do about each.
Related guides
- Power cut checklistA printable power cut checklist for your home: what to have ready, what to do in the first hour, and what to check when the power comes back. Official UK advice.
- Does a gas boiler work in a power cut?Most gas boilers stop in a power cut because their controls and pump need electricity. What that means for heating and hot water, and how to keep warm.
- Heat pump in a power cutA heat pump stops when the power goes. How to keep the warmth in, keep yourself warm, check on hot water, and decide whether backup power is worth looking at.
Sources
- Which heating works in a power cut (National Grid), awaiting check
- What to do in a power cut (network operators) (Power Cut 105), awaiting check
- gov.uk Prepare power cut advice (gov.uk Prepare), awaiting check
- Digital landlines and power cuts (Ofcom), awaiting check
- Food safety in a power cut (Food Standards Agency), awaiting check
- gov.uk Prepare emergency kit list (gov.uk Prepare), awaiting check
- Who the Priority Services Register is for (Priority Services Register), awaiting check
- gov.uk Prepare household emergency plan (gov.uk Prepare), awaiting check
- British Red Cross emergency kit list (British Red Cross), awaiting check
- Power cut helpline (Great Britain) (Power Cut 105), awaiting check
- Emergency services (NHS), awaiting check
- NHS non-emergency help (NHS), awaiting check
- Carbon monoxide safety (NHS), awaiting check