It starts with a flicker. The air conditioning hums down, the Wi-Fi router blinks out, and suddenly your entire street is very, very quiet. During a heatwave, Europe's power grids run closer to their limits than most people realise: millions of AC units, fans and fridges all pulling maximum load at once, transmission lines sagging in the heat, power plants struggling with warm cooling water. The massive Iberian blackout showed just how fast "fully modern country" can turn into "no lights, no payments, no petrol", and how unprepared most households were. (Heatwaves getting to you in general? Here are 12 places in Europe where you can escape the summer heat.)
The good news: you don't need a bunker or a diesel generator. You need to understand what fails, in what order, and about 30 minutes of preparation. Here are the 9 things that go down first when the grid does, and the simple plan that keeps a blackout at the level of "inconvenient story" instead of "genuine emergency". This guide has been updated for the 2026/27 season: the summer heat is behind us, but the same plan works just as well when the first autumn storms and winter cold put the grid under strain.
The First 60 Minutes: What Fails Immediately
1. The lights, and every light switch reflex you have
Obvious, yes. But here's what people actually find out in minute one: their only working light source is a phone torch that eats 20% battery per hour, battery they'll desperately need later for information and communication. If the blackout hits at night, stairwells, basements and bathrooms become genuinely hazardous, and candle-related fires spike during every major outage. A dedicated torch, one per household member, stored where you can find it in the dark, is the single cheapest piece of blackout resilience there is. A headlamp is even better: hands free for carrying things, cooking, or holding a child's hand.
2. Card payments, ATMs and shop tills
This one shocks people every single time. No power means no card terminals, no contactless, no BLIK, no Apple Pay, and most ATMs go dark too. Within an hour, the only shops still selling are the ones accepting cash, and the queues in front of them say everything. During the Iberian outage, people with a few banknotes at home bought water, bread and batteries; people with platinum cards bought nothing. Keep a modest cash reserve at home in small denominations, because big notes are useless when nobody has change. (Speaking of what's in your wallet: here's what's worth knowing about secure card wallets.)
3. Mobile network and the internet
Cell towers have backup batteries, typically good for one to a few hours. Then they die, one by one, and with them go your calls, your messengers and your ability to check what's actually happening. This is why old-school FM/DAB radio remains the official emergency information channel in most EU countries: it keeps broadcasting when everything else is down. A battery or wind-up radio costs little and turns "terrifying silence" into "okay, they say power is back in six hours". Agree on a family meeting point in advance, because "I'll just call you" is not a plan when the network is gone.
The Slow Burn: Hours 2 to 12
4. Your fridge and freezer
The rule of thumb: an unopened fridge keeps food safe for about 4 hours, a full freezer for 24 to 48 hours. In a 35°C heatwave apartment, those numbers shrink fast. The single best move is also the simplest: don't open the door. Every peek costs you cold air you can't replace. If you know an outage is likely (utilities increasingly warn about rolling blackouts during heat peaks), freeze bottles of water in advance. They hold the temperature down and become drinking water as they melt.
5. Water pumps: yes, your taps can stop too
If you live above roughly the 4th or 5th floor, your water pressure probably depends on electric booster pumps. When they stop, so do your taps and your toilet cistern. Houses with well pumps lose water immediately. Filling a few large bottles and the bathtub at the first sign of trouble is a classic for a reason: the standard emergency recommendation is around 3 litres of drinking water per person per day, plus water for hygiene and flushing.
6. Lifts, garage doors and electric gates
Every major blackout comes with the same statistic: hundreds of people trapped in lifts. If the grid is flickering during a heat peak, take the stairs. Being stuck in a metal box at 40°C is dangerous, not just unpleasant. And a detail almost everyone forgets: do you know how to open your electric garage door or gate manually? Find the release mechanism today, not when your car is trapped inside and the frozen food is in the boot. Speaking of cars in summer, here are 12 everyday items that won't survive summer in your car.
The Long Haul: Day Two and Beyond
7. Refrigerated medication
Insulin, certain biologics, some antibiotics and eye drops: for millions of Europeans, the fridge isn't about food, it's about medicine. Most refrigerated medications tolerate short excursions to room temperature, but "room temperature" in a heatwave flat can be 35°C, which is a different story entirely. If you or someone in your household depends on cold-chain medication, a cooler with pre-frozen packs should be part of your kit, and you should know your medication's actual temperature tolerance before you need that knowledge. We've covered the details in our guide on how to travel with medication that needs refrigeration; the same rules apply when the fridge dies at home.
8. Petrol stations
The fuel is right there in the underground tanks, but the pumps that lift it are electric, and so are the tills. During extended outages, working petrol stations become scarce and the queues become legendary. The old road-trip rule applies to blackout resilience too: treat half a tank as empty. An EV with a decent charge is actually an asset here, since many models can power devices from their battery, but a nearly-empty one is a very expensive paperweight.
9. Air conditioning, and that's the truly dangerous one
Here's the brutal irony: blackouts are most likely during extreme heat, which is exactly when losing cooling is most dangerous. Heat is Europe's deadliest weather phenomenon, and a blackout during a 40°C spell turns flats, especially top-floor ones, into ovens. Know the passive playbook: shutters and curtains closed during the day, windows open at night, wet towels and cool showers, move to the lowest floor, and check on elderly neighbours, who are statistically the most at risk and the least likely to ask for help.
Season Update 2026/27: When the Problem Flips From Heat to Cold
The nine failures above do not care about the calendar. What changes with the season is the last one. In winter, losing power means losing heating, and the passive playbook reverses: close the curtains at dusk to keep warmth in, put on layers rather than looking for shade, shut off rooms you do not need, and keep a warm drink in an insulated flask. Autumn storms can also cut power for hours without any warning, so the kit should live on a shelf all year round and not in a box you only look for in July.
Two things are worth checking again as the dark months begin. First, the batteries: alkaline cells and power banks lose charge slowly in a drawer, so test every torch now and replace anything that flickers. Second, your radio and your documents: make sure the radio still works and that paper copies of key phone numbers are where the whole household can find them. If you want to go deeper, our colleagues have put together two companion guides: 72 hours on your own: 12 things Europe's emergency booklets tell you to keep at home and Blackout-ready: 10 lessons from Ukraine's winters every European home can use.
The 30-Minute Prep Plan
Half an hour, one shopping list, and you're ahead of 90% of households:
- Minutes 0 to 5: Light. One torch or headlamp per person + spare batteries, stored in a fixed, known spot. Test them today.
- Minutes 5 to 10: Power. Charge every power bank you own to 100% and keep one permanently topped up. Phones switch to low-power mode the moment an outage starts. (Flying soon? Check the power bank rules for carry-on baggage.)
- Minutes 10 to 15: Cash. Withdraw a sensible reserve in small notes and coins. Store it somewhere safe but accessible.
- Minutes 15 to 20: Water & food. A few 5-litre bottles, plus a shelf of no-cook food: tinned fish, crackers, nuts, UHT milk. Manual can opener, the eternal blackout punchline.
- Minutes 20 to 25: Information. Battery or wind-up FM radio. Write key phone numbers on paper, because nobody remembers numbers anymore and your contacts live in a phone that will eventually die.
- Minutes 25 to 30: Documents & meds. IDs, insurance papers, a basic first-aid kit and any critical medication in one grab-ready, waterproof container, because blackouts love to coincide with the storms that cause them.
Light That Doesn't Care About the Grid: Peli Torches
Peli makes lights for professionals, and the product pages are specific about what each one does. For a home blackout kit, the golden rule is one light per person, and the choice comes down to how you want to power it and how you want to carry it. The details below come straight from the product pages.
- Peli 1910 Pocket Flashlight: 97 mm long, aluminium body, up to 106 lumens and a beam reaching 55 metres. High mode runs up to 2 hours 30 minutes, low mode up to 4 hours. IPX7 waterproof. Runs on two AAA batteries, which are not included. The product page itself suggests keeping it in a pocket "until the lights go out".
- Peli 2765Z0 Headlamp: 96 g with batteries, up to 141 lumens, four modes (High, Medium, Low, Strobe), up to 14 hours of runtime and a head unit that tilts 45 degrees. Three AAA alkaline batteries are included, so no charger or socket is needed. Downward LEDs light the ground at your feet. ATEX Zone 0 certified, IPX4 splash-proof.
- Peli 7600 Rechargeable Flashlight: 900+ lumens in white, plus red and green LEDs. USB rechargeable (micro-USB) lithium-ion battery with a 4-level indicator, and non-rechargeable CR123 cells as an emergency backup. IPX8 waterproof to 2 metres, Type III hard anodized aluminium body.
- Peli 1975Z0 Penlight: 14.6 cm long, 54 g with batteries, 117 lumens. Two AAA alkaline batteries are included, and a tail push button gives momentary or constant-on light. ATEX Zone 0 certified.
One practical point from these specifications: lights that take ordinary AAA batteries (1910, 2765Z0, 1975Z0) can be fed from any shop shelf or drawer, while the rechargeable 7600 needs a charged battery or a micro-USB source. In a blackout kit it is sensible to have at least one of each type.
One Grab-Ready Box: Waterproof Peli Micro Cases
Documents, cash, spare keys, meds, a power bank: the whole point of a blackout kit is that it's in one place, sealed against water and dust, ready to grab in the dark. That's what IP67-rated Peli micro cases were built for. (What does IP67 mean exactly? We explain it here.) All four cases below are IP67, which means dustproof and waterproof to 1 metre for 30 minutes, and each has a GORE-TEX pressure equalization valve or an automatic pressure equalisation valve.
- Peli 1010 Micro Case: interior 11.1 x 7.3 x 4.3 cm, enough for car keys, cash, cards, a USB drive and a few pills. Weighs 0.18 kg without foam and floats.
- Peli 1040 Waterproof Phone Case: interior 16.51 x 9.83 x 4.45 cm, sized for a smartphone, keys, cards and small medication. Weighs 0.32 kg with the rubber insert, volume 0.72 l, floats.
- Peli 1060 Case for Phone & Documents: interior 20.96 x 10.8 x 5.72 cm and 1.29 l, enough for a large phone with folded documents and keys, or prescription medication and a phone. Weighs 0.47 kg with the rubber insert, floats.
- Peli M50 Micro Case: interior 18.5 x 10.9 x 6.1 cm, exterior 20.6 x 14 x 7.4 cm, with two latches and a padlock hole for medication or cash you want locked away. Weight is listed on the product page.
Which Model for What
| Job in your blackout kit | Model | Key facts from the product page |
|---|---|---|
| Pocket light for every adult | Peli 1910 | 97 mm, 106 lumens, 55 m beam, 2 x AAA (not included), IPX7 |
| Hands-free light for cooking, stairs, children | Peli 2765Z0 headlamp | 96 g, 141 lumens, up to 14 h, 3 x AAA included, 45 degree tilt |
| Strong rechargeable light and signalling | Peli 7600 | 900+ lumens, white/red/green LEDs, micro-USB, CR123 backup, IPX8 |
| Slim light for close work and drawers | Peli 1975Z0 penlight | 14.6 cm, 54 g, 117 lumens, 2 x AAA included |
| Keys, cash, cards, a few pills | Peli 1010 | Interior 11.1 x 7.3 x 4.3 cm, 0.18 kg, floats |
| Phone, keys, small medication | Peli 1040 | Interior 16.51 x 9.83 x 4.45 cm, 0.32 kg, 0.72 l |
| Phone, documents and keys together | Peli 1060 | Interior 20.96 x 10.8 x 5.72 cm, 0.47 kg, 1.29 l |
| Lockable box for cash or medication | Peli M50 | Interior 18.5 x 10.9 x 6.1 cm, padlock hole, two latches |
Frequently Asked Questions
How long can a blackout last in Europe?
Most outages are fixed within hours, but a large regional failure can last a day or more, which is why the plan above is built around the first 12 hours and then day two. Plan for at least 72 hours if you can, and treat anything beyond that as a bonus.
Should I rely on my phone as a torch?
Only as a last resort. A phone torch drains roughly 20% battery per hour, and you will want that battery for information and messages. A dedicated torch or headlamp per person keeps the phone free for what only a phone can do.
Which batteries are best for a blackout kit?
It depends on the light. Models such as the Peli 1910, 2765Z0 and 1975Z0 use standard AAA alkaline batteries that are easy to replace anywhere, while the Peli 7600 uses a micro-USB rechargeable battery with non-rechargeable CR123 cells as backup. Keep a spare set of whichever your lights use, and test them every few months.
What should go into a waterproof grab box?
IDs, insurance papers, spare keys, a small cash reserve, critical medication, a charged power bank and a paper list of phone numbers. Pick the case by interior size: the Peli 1010 for keys and cards, the 1040 or 1060 when a phone and documents need to travel together.
Related Reading
For the wider picture, start with 72 hours on your own, then read Blackout-ready: 10 lessons from Ukraine's winters. If your kit includes medication, our guide on refrigerated medication covers temperature limits, and the IP67 explainer shows what the waterproof rating really promises.
Lights Out, Head Up
A blackout is not the apocalypse, it's a stress test. The households that pass it aren't the ones with the most gear; they're the ones that spent half an hour thinking ahead: light you can find in the dark, cash that works when terminals don't, water before the pumps stop, a radio that tells you what's going on, and one sealed box with the things that matter. Do the 30-minute plan this week, put the kit on a shelf, and then forget about it, until the night your street goes quiet and you're the only flat with the lights on.
