Power Cut Survival Kit UK: Light, Power, Warmth, Comms

UK power cuts are common, short and occasionally long: most resolve within hours, but storm events have left parts of the country off supply for days. A kit that handles both looks like this:

• Light: layered lighting for every occupied room, not one torch in a drawer.
• Power: stored battery capacity sized to your household's phones, router and health equipment.
• Warmth: ways to keep people warm that do not depend on mains electricity, because most UK central heating fails in a power cut even with a gas boiler.
• Comms and information: a battery or wind up radio, charged phones, and the 105 number for your network operator.

Around those four sit the supporting layers you may already have from the wider emergency kit list: stored water, no cook food, first aid, and cash. The gov.uk Prepare campaign's home kit list, torch, power bank, radio, batteries, first aid, water and food that needs no cooking, is exactly this kit in miniature.

The difference between a miserable outage and a calm one is mostly light, and the solved version costs little:

• Ambient: one LED lantern per occupied room, the kind that lights the whole space rather than a beam. Battery models should share one battery size across the house.
• Task: a headtorch per adult for cooking, fuse boxes and stairs, leaving both hands usable.
• Navigation: plug in rechargeable night lights that come on automatically when the power fails are the quiet hero purchase, lighting hallways and bathrooms the moment an outage starts.
• Candles last and least: UK fire services attend candle fires every winter; prefer batteries, and if candles are used at all, never leave them unattended.

Store the lot in one labelled box with spare batteries, and the kit works at 2am in the dark, which is the only test that counts.

Size the power pillar from your actual loads rather than marketing:

• A smartphone charge is roughly 15 to 20Wh, so a 256Wh unit is a dozen phone charges with margin.
• A broadband router draws 10 to 15W, so roughly 100Wh keeps the internet up for a working day if the street cabinet still has power.
• CPAP machines commonly draw 30 to 60W with humidification, so an overnight run wants 300 to 500Wh of real capacity.
• A fridge cycles at 100 to 150W average; keeping one cold is 1000Wh class territory, and an unopened fridge holds safe temperatures for around four hours anyway, a freezer longer.
• Kettles, toasters and electric heaters draw 1800 to 3000W: off the menu for everything on this page. Hot drinks in an outage come from a gas hob, a flask filled at the first flicker, or a camping stove used with ventilation.

For most households the right answer is one compact LiFePO4 power station in the 250 to 300Wh class as the kit's core, Check price on Amazon, stepping up to the 1000Wh class if fridge or medical loads matter: Check price on Amazon. The budget end of the market is compared in detail in our best budget portable power stations guide, and the full field including bigger home backup units in the flagship best portable power stations UK roundup. Anyone dependent on powered medical equipment should also register on their network operator's Priority Services Register.

Most UK homes lose heating in a power cut because boilers, pumps and controls need mains. The kit answer is retention and layering, not generation:

• Heat the person: duvets and sleeping bags brought to the living room, wool hats indoors (genuinely effective), hot water bottles filled from a gas hob or flask, and layers rather than one thick garment.
• Keep one room: close doors, pick the smallest comfortable room, and let the rest of the house go cold. A family in one room stays warm for days on body heat and bedding.
• Draught control: towels at door gaps and closed curtains at dusk measurably slow heat loss.
• What not to do: never run barbecues, camping stoves or generators indoors, and never use a gas oven as a heater; carbon monoxide ends more outages badly than cold does. A battery carbon monoxide alarm belongs in the kit.

The information layer costs the least and gets used first:

• 105 is the national power cut number, from any network, connecting you to your distribution operator. Write it down; in an outage, half the street is discovering it for the first time.
• A battery or wind up radio covers local updates when mobile data degrades, which it does in longer outages as cell sites exhaust their backup.
• Phones on charge at the first warning: when storms are forecast, charge everything including the power station, fill a flask, and the kit starts the outage full.
• Paper backup: key numbers written down, a torch by the fuse box, and cash in the kit, since local card payments fail with the power.

Full preparation sequencing for before, during and after an outage is in how to prepare for a power cut.

A power cut rarely cuts the water, but long outages can affect pumped supplies, and cooking changes immediately. The kit assumes:

• Water: a stored base in food grade containers, built per how to store water long term, with bottled water for grab convenience.
• Food: no cook meals for the first days, the layered supply from how to build an emergency food supply, and a manual tin opener taped inside the food cupboard.
• First aid and health: a stocked kit, a week of essential medication, and the fridge medication plan: insulin and similar keep best in an unopened fridge, and the 1000Wh power class above exists for exactly this household.

One box, one shelf, everything labelled, checked at the clock changes alongside water and food rotation. That cadence, twice a year, is the entire maintenance burden of the kit.

If building from scratch, spend in this order: lantern per room and headtorches with spare batteries; a wind up or battery radio; a compact LiFePO4 power station, Check price on Amazon or the Jackery and Anker equivalents above; a battery carbon monoxide alarm; hot water bottles and a decent flask; then the 1000Wh class upgrade only if fridge, freezer stock or medical equipment justify it. Everything except the power stations is pocket money hardware; the power stations are the one considered purchase, which is why they get their own full comparison guide.