When the power goes out, the clock starts ticking on your fridge, your internet, and your sanity. A portable power station gives you a buffer. Not days of whole-home power like a standby generator, but enough to keep essentials running until the grid comes back.

The problem is that the market has exploded. There are now dozens of options between €500 and €3,000, and the spec sheets all blur together after a while. Watt-hours, surge watts, MPPT charging, LFP vs NMC batteries. It gets overwhelming fast.

This guide cuts through that. I’ll explain what actually matters when you’re buying a power station specifically for home backup, and which units deliver the best value at each budget level.

What “Home Backup” Actually Requires

Most people overestimate how much power they need. Unless you’re trying to run an air conditioner or electric heater, your critical loads during an outage are surprisingly modest.

A typical setup looks like this: refrigerator (100-400W running, 1200W surge), internet router and modem (30W), phone charging (20W), a few LED lights (30W total), and maybe a laptop (60W). That’s roughly 250W of continuous draw with occasional spikes.

At 250W continuous, a 1,000Wh power station lasts about 3.5 hours accounting for inverter efficiency losses. A 2,000Wh unit gets you through most of a night. A 3,000Wh+ system with solar panels can theoretically run indefinitely if you get enough sun.

Capacity: How Many Watt-Hours Do You Actually Need?

The formula is straightforward. Add up the wattage of everything you want to run, multiply by the number of hours you expect outages to last, then add 20% for inverter inefficiency.

For a 12-hour overnight outage running a fridge, router, and lights: (180W average) × 12 hours × 1.2 = 2,592Wh. So a unit in the 2,500-3,000Wh range covers you comfortably.

If your outages tend to be shorter (2-4 hours), you can get away with 1,000-1,500Wh and save significant money.

LFP vs NMC: Battery Chemistry Matters

Every power station worth buying in 2026 uses lithium iron phosphate (LFP/LiFePO4) cells. The older NMC (nickel manganese cobalt) chemistry that dominated until 2023 has effectively been phased out of new models.

LFP gives you 3,000+ charge cycles before degrading to 80% capacity. At one cycle per week, that’s 57 years of useful life. You’ll replace the unit for other reasons long before the battery wears out.

If you find a deal on an older NMC unit, know that you’re looking at 500-800 cycles. Still fine if the price reflects that limitation.

Solar Compatibility: The Real Off-Grid Question

A power station without solar input is just a very expensive battery. The real value proposition for home backup is pairing it with panels so you can recharge during extended outages.

The key spec here is maximum solar input wattage. A unit that accepts 400W of solar can realistically pull 250-300W on a good day (panels rarely hit rated output). At 300W actual input, recharging a 2,000Wh battery from 20% to 80% takes about 4 hours of good sunlight.

Match your panel wattage to your unit’s maximum input. Going over wastes money on panels. Going under means painfully slow recharging.

What I’d Buy Today

For most households preparing for grid outages, the sweet spot is a 2,000-3,000Wh LFP unit with 400W+ solar input, paired with 200-400W of portable panels. Expect to spend €1,500-2,500 for the station and €400-800 for panels.

I’ll be publishing detailed reviews of specific units in the coming weeks. Each review will include real-world runtime testing with common home loads, not just spec-sheet regurgitation.

If you have a specific unit you’d like me to test, let me know.