Home Backup Scenarios: Which Power Station for Which Outage? (2026)

Outage planning goes wrong when people buy for the average hour instead of the hard day. Here are three concrete scenarios with the load math, so you can match the station to the outage you actually fear.

Scenario 1: the 4-hour blackout

Loads: fridge (200Wh for 4h of cycling), modem/router (40Wh), phones (30Wh), a few lights (80Wh). Total: ~350Wh.

Any 1kWh station handles this with room to spare — the Anker C1000, DELTA 3 Plus, even the DJI Power 1000. This is the “keep the fridge cold and the WiFi on” tier, and it’s cheap.

Scenario 2: the 24-hour storm outage

Loads: fridge full day (1,200Wh), freezer (800Wh), modem/router + lights (400Wh), phones/laptops (200Wh), two microwave meals (300Wh), CPAP overnight (320Wh). Total: ~3.2kWh.

This is where most buyers land, and it’s the 3kWh class: the Anker SOLIX F3000 (3072Wh/3600W) is the sweet spot — fridge, freezer and cooking with margin. A 2kWh station (C2000 Gen 2, DELTA 2 Max) covers it if you skip the freezer or cook on gas.

Scenario 3: the multi-day grid failure

The math changes: no battery, however big, survives a week alone. A 4kWh station (DELTA Pro 3, F3800) covers ~1.5 days of essentials — then you need daily solar refill.

The system that works: 3–4kWh of battery + 1–2kW of solar. In decent sun, the array refills the day’s 2.5–3kWh of use, and the battery carries the night. This is the only portable setup that genuinely does multi-day, and it’s why solar input watts matter as much as battery capacity. Our solar pairing guide sizes the array.

The loads people forget

• Sump pump: 800–1000W running, big surge — needs 2000W+ output. In a storm outage this is often the most important load in the house.
• Well pump: 1500–2500W — 3000W+ station or the F3800’s 240V output.
• Medical devices: CPAP ~40W (320Wh/night) is easy; oxygen concentrators ~300W need real capacity.
• Garage door: trivial per cycle, but electric openers are dead without backup — a station handles it.

The 10ms rule

If you work from home, put the modem, router and PC on a station with proper UPS switchover (10–20ms: DELTA Pro 3, C2000 Gen 2, DELTA 3 Plus). Your video calls survive the blackout without a flicker — a generator can’t do that. For the full cost comparison, see power station vs gas generator and run your own numbers in the 5-year cost calculator.

Outage prep checklist (do this before storm season)

1. Size once, properly. Walk through what size power station you need with your actual loads — most people discover the fridge sizes the whole system.
2. Charge to 80–100% and leave it plugged in. LiFePO4 self-discharges slowly, but a station at 40% is a nasty surprise. Top up monthly.
3. Pre-position cables. Extension cord to the fridge, the CPAP’s 12V adapter, a power strip for the “essentials corner.” You don’t want to hunt for these in the dark.
4. Know your breakers. If you ever backfeed a panel (transfer switch only — never a suicide cord), label the essential circuits now.
5. Test the sump pump on battery. Don’t discover the surge trips your inverter during the storm that floods the basement.