UK Storm & Power Cut Preparedness Guide
Quick answer: prioritise communications, efficient lighting, phones and selected refrigeration or heating controls. Check each appliance’s running wattage and start-up demand, then choose enough battery capacity for the hours you need. Portable power stations are temporary, portable backup systems; they are not whole-home generators.
What usually stops during a power cut?
Equipment connected to the mains normally stops unless it has its own battery or another backup supply. Common priorities include:- Broadband equipment: router, fibre ONT, mesh units and network switches.
- Communications: mobile phones, tablets and a suitable radio.
- Lighting: low-wattage LED lamps or rechargeable lanterns.
- Work and information: laptops and small monitors.
- Food storage: a fridge or freezer where the power station can handle both normal cycling and compressor start-up.
- Heating controls: only where the boiler, pump and controls are compatible and their full electrical demand has been checked.
Prepare before a 2026/27 UK storm
Before the warning period
- Charge power stations, phones, power banks and rechargeable lights.
- Check appliance labels and record actual wattage where possible.
- Test the complete setup before relying on it.
- Keep safe, compatible charging and appliance cables together.
During an outage
- Run only the devices that matter and switch off unused AC outputs.
- Limit fridge and freezer door opening.
- Keep the power station dry, ventilated and within its operating limits.
- Never connect a portable power station to household wiring without an approved installation.
Current VoltReady recommendations
These options cover compact essentials, everyday backup, mid-range requirements and higher-capacity planning. Match the product to the equipment you need to run, its start-up demand and the required hours.BLUETTI AC2P
230.4Wh capacity · 300W AC output A lightweight choice for a router and ONT, phones, LED lighting and short laptop use. It is not intended for kettles, fan heaters or other high-power appliances. View AC2PBLUETTI AC60P
504Wh capacity · 600W AC output More capacity for communications, lighting and work equipment, with enough output for a wider range of checked essentials. Compressor and motor start-up demand still needs verification. View AC60PEcoFlow DELTA 3
1,024Wh capacity · 1,800W AC output A stronger mid-range option for longer communications and work use, plus carefully selected household essentials. View DELTA 3 detailsBLUETTI AC200PL
2,304Wh capacity · 2,400W AC output Designed for longer support of selected home essentials where both running and start-up loads have been checked. It does not provide whole-home backup by itself. View AC200PL detailsEcoFlow DELTA 3 Max
2,048Wh capacity · 2,400W AC output The standard DELTA 3 Max — not the Max Plus — is an alternative for longer outages and higher combined loads. View DELTA 3 Max details
Choose by requirement: compare battery capacity, continuous output, start-up demand and the number of hours your essential equipment must run.
Supporting options
EcoFlow RIVER 3 UPS is a compact supporting option for low-power communications and electronics. Its 245Wh capacity is better suited to modest loads and shorter outages than larger household essentials. BLUETTI AC70P remains a supporting mid-size option for buyers who need more capacity than a compact unit. The BLUETTI AC2P + 100W Solar Kit pairs the compact AC2P with a portable panel for buyers who want weather-dependent recharging away from the mains. Solar can extend or restore battery capacity in suitable daylight; it should not be treated as guaranteed charging during a storm.What can these power stations run?
| Essential | Typical planning range | What to check |
|---|---|---|
| Router and fibre ONT | Often about 10–25W combined | Check every powered box; low-load inverter overhead can materially reduce runtime. |
| LED light | About 5–12W per lamp | Use the label wattage and avoid assuming every lamp draws the same power. |
| Laptop | Often about 30–90W while charging or working | Demand varies with the charger, battery level and workload. |
| Fridge or freezer | Variable, cycling load | Measure real use and confirm compressor start-up demand is within the power station’s limit. |
| Boiler controls and pump | System-specific | Check the complete heating system and obtain qualified advice where connection is unclear. |
Illustrative runtime planning
The figures below are calculations, not measured or guaranteed runtimes. They use 80% of the advertised battery capacity as a simple planning allowance for conversion losses and reserve. Actual runtime can be materially shorter, especially at very low AC loads where inverter self-consumption is significant, or with cycling and start-up loads.| Model | Capacity | 20W communications load | 100W mixed essentials load |
|---|---|---|---|
| BLUETTI AC2P | 230.4Wh | About 9 hours theoretical | About 1.8 hours theoretical |
| BLUETTI AC60P | 504Wh | About 20 hours theoretical | About 4 hours theoretical |
| EcoFlow DELTA 3 | 1,024Wh | About 41 hours theoretical | About 8.2 hours theoretical |
| EcoFlow DELTA 3 Max | 2,048Wh | About 82 hours theoretical | About 16.4 hours theoretical |
| BLUETTI AC200PL | 2,304Wh | About 92 hours theoretical | About 18.4 hours theoretical |
Calculate your own essential load
Add every device you intend to run, choose a duration and compare the result with the power station’s output and capacity.After the storm
- Check food-storage temperatures and follow current food-safety guidance.
- Recharge equipment only when mains power is stable and conditions are safe.
- Inspect cables and the power station for damage or moisture before reuse.
- Review what worked, update measured loads and improve your plan for the next outage.