Article 4 in a series on practical civil preparedness for the Nordics
It is 11 pm on a Tuesday in January.
Outside, it is minus fifteen. The wind is coming from the northeast.
And then — with no warning — everything goes dark.
Not just your apartment. The whole street. The whole neighborhood.
Your phone is at 34%. The fridge starts warming. The radiators are electric. And you have no idea how long this will last.
This is not a war scenario. This is a winter storm scenario. It happens more often in Norway, Sweden, and Finland than most people think. And it is the single most disruptive event a household can face — because electricity is not just lighting. It is heating, water pressure, internet, payment, refrigeration, communication, and medical equipment.
Photo: Generated using WordPress AI.
Everything runs on power.
So what do you actually do when the power is gone?
What we assume — and why we’re wrong
Most people have an unconscious mental model that goes something like this: If the power goes out, it will be back within a few hours. The state will handle it.
And most of the time, that is true. Norway’s grid is well-maintained and well-defended. Faults are typically repaired quickly.
But “most of the time” is not “all of the time.”
An extended winter storm. A cyberattack on infrastructure. A regional fault during a period of extreme demand. These are not science fiction — they are documented scenarios in Norwegian and Nordic risk assessments. DSB (the Norwegian Directorate for Civil Protection) explicitly identifies power failure as one of the most consequential crisis events for households, precisely because it creates cascading failures across almost every other system.
When power fails:
- Municipal water supply pressure can drop or fail entirely
- Internet and mobile networks start degrading within hours as base stations run out of battery backup
- Card terminals stop working
- Electric heating stops
- Ventilation in your house stops running
- Refrigerated food begins to spoil within 4 hours
- Anyone dependent on electrical medical equipment — CPAP machines, insulin refrigeration, stairlifts — faces a serious risk
This is not alarmism. These are the documented second-order effects of a power failure, and they happen at very different speeds.
The question is not if you should prepare for this. The question is what preparation actually looks like.
The three layers of power resilience
Think of energy preparedness not as a single solution, but as a layered system. Each layer has different costs, different benefits, and different appropriate use cases.
Layer 1: The basics — power banks, batteries, and charged reserves
This is where everyone should start. It costs almost nothing and can be done this week.
A high-capacity powerbank (20,000–30,000 mAh) can charge a smartphone six to eight times. That is the difference between being able to contact emergency services and being completely cut off. It can also power a small portable DAB radio, which, in a Norwegian crisis, is your most important source of official information — NRK P1 serves as the emergency broadcast channel even when other networks fail.
The rule is simple: keep it charged. A power bank at 12% capacity is not emergency equipment. Check it monthly.
Similarly: torches with spare batteries, a battery-powered or hand-crank DAB radio, and charged reserves for any critical medical devices. These are not luxury items. These are the baseline.
Layer 2: The midground — portable power stations
A significant shift in preparedness came with the development of large-capacity portable battery stations — devices like the EcoFlow Delta, Jackery Explorer, and similar models. These are not power banks. They are small, portable power stations capable of outputting 230V AC power.
What can a mid-range unit (1,000–2,000 Wh capacity) actually do?
- Run a laptop for 10–20 hours
- Power a CPAP machine for several nights
- Run LED lighting for days
- Keep a small fridge cold for 12–24 hours
- Charge phones repeatedly across an entire family
These units cost between 5,000 and 15,000 NOK, depending on capacity. They are not cheap. But for a household with medical dependencies, or a family with young children in a northern region, they are arguably the single most impactful investment on this entire list.
They pair exceptionally well with portable solar panels — meaning that even in an extended outage, you can slowly recharge them during daylight hours.
Layer 3: The serious investment — home solar and battery walls
This is the layer most people think about first and should probably think about last — not because it is unimportant, but because it requires high upfront cost and is not accessible to apartment dwellers. However, the benefit is that you can confidently keep the more demanding, power-consuming devices at home, like your fridge or ventilation running 24/7.
A hybrid home solar installation with a battery backup (such as a Tesla Powerwall, Huawei LUNA, Deye, or equivalent) can provide meaningful energy independence. In a summer power failure, a well-sized system could keep critical loads running essentially indefinitely. In a Norwegian winter — with short days and heavy cloud cover — the math changes significantly. Battery storage allows you to bank solar production and deploy it strategically, but realistic winter expectations should be modest: enough to power lighting, communications, and refrigeration, not to run your entire house as normal. If you go for a solar system, remember that the important keyword is “hybrid home solar”, meaning that you are able to operate your home solar system also when there is no current from the grid. Standard “on-grid” inverters will automatically shut down when the grid power is out.
The honest cost: a complete solar-plus-storage system for a Norwegian house typically starts at 150,000–220,000 NOK installed, depending on system size and complexity. For many households, this is not a near-term option. If you own a house and are planning renovations anyway, this calculation changes. Solar installations in Norway now receive government support through Enova subsidies, and electricity prices have shortened the payback period compared with five years ago. When including savings from electricity production, solar panels might still be a viable alternative energy source. It is worth running the numbers. For everyone else — including the majority of Norwegians who live in apartments — Layers 1 and 2 are where the real gains are.
If solar power is insufficient or still too intermittent, you may consider a battery top-up from an additional power generator (e.g., a multi-fuel generator running on propane), combined with solar power, which can provide a near-unlimited, uninterrupted power supply, especially on days with less sun. Propane comes in very handy, since it can also be used to run the grill, and Norwegian homeowners can store up to 90 liters of it if stored outside (e.g., in a garage).
What the Norwegian authorities actually recommend
DSB’s official household preparedness guidelines specifically mention emergency power. Their recommendations are deliberately conservative — achievable for any household regardless of income:
- Battery-powered, solar, or hand-crank torches and headlamps (with spare batteries)
- Battery-powered, solar, or hand-crank DAB radio
- Charged power banks, checked regularly
They also recommend having alternative heating that does not depend on electricity — a wood-burning stove or approved fireplace, or an indoor-rated gas or paraffin heater. This is worth pausing on: in Norway, the assumption that heating equals electricity is one of the most dangerous single points of failure in household resilience. A family in a modern, well-insulated home with electric-only heating has no fallback if the grid goes down for three days in January.
If you do not have a fireplace and cannot install one, a quality indoor-rated gas heater and a sufficient supply of gas canisters are a practical alternative. Know what “indoor-rated” means before purchasing — not all gas heaters are safe for enclosed spaces.
The apartment reality
The honest truth is that energy preparedness looks different in an apartment than in a house.
You cannot install solar panels on a rented flat. You cannot safely store a generator on a balcony. Your heating system is almost certainly shared with the building and is outside your control.
This is not a reason to do nothing. It is a reason to focus your energy on what you can control:
- Layer 1 and Layer 2 power solutions
- Alternative lighting (candles, battery lamps)
- A sleeping bag rated for zero degrees or below — because in a winter outage, the single most important skill is conserving body heat
- A plan for where you go if the building becomes too cold — and a conversation with a neighbor who might have different resources than you
Community matters more in apartments. A neighbor with a fireplace and a spare room is worth more than a thousand euros of equipment you cannot use.
The honest checklist for energy preparedness
Do you have these right now?
☐ Powerbank (20,000 mAh or above), kept charged
☐ Battery or hand-crank DAB radio
☐ Torches and spare batteries (in a location you can find in the dark)
☐ Alternative heat source that works without electricity
☐ A plan for if your apartment gets cold
☐ Key medical devices with backup charging solutions
☐ Cash at home (card terminals fail without power)
If you want to go further:
☐ A portable power station (1,000+ Wh)
☐ A portable solar panel to pair with it
☐ A DC-to-AC inverter for the car
And if you own a house and are thinking long-term:
☐ A solar and battery storage assessment from a qualified installer
Start with the powerbank.
Not because it solves everything.
Because it solves the most important thing: you can communicate when communication matters.
The rest builds from there.
Views expressed are my own.
This is Article 4 in my weekly series on Total Defense and Nordic preparedness.
Every week: one topic, practical steps, limited budget.
Next week: Article 5. Small batteries, big impact — portable power in a crisis. What you actually need, what marketing is, and why 90% of people buy the wrong thing.
I write about Total Defense, civil preparedness, and resilience from a Nordic perspective. Follow for weekly posts. Questions, challenges, and additions are welcome in the comments.
This work, excluding photos, is licensed under a Creative Commons Attribution 4.0 International License.