How to Keep Your Home Running Through a Winter Power Outage

Atlantic hurricane season ends November 30. For coastal homeowners, that's not the end of outage season — it's the handoff. Winter brings nor'easters, ice-laden lines, and the one thing summer blackouts don't: the cold. Here's how to size real backup power for the essentials, before the first big storm.

Start with the math, not the machine

Most people buy backup power backwards. They pick a product, then discover what it can and can't run. Do it in the other order:

1. List what you'd actually power in a 24-hour outage — not everything, the essentials.
2. Multiply each device's watts by the hours you'd run it.
3. Add a 20% buffer for inefficiency and surprises.

That number, in watt-hours, is the battery size you need. A thousand watt-hours is roughly the sweet spot for a suburban home's essentials — here's what that looks like in practice.

What a 1 kWh power station can actually run

These are real-world, conservative estimates for a station in the 1,000–1,070 Wh class (the two options below). The rule behind the math: divide the station's watt-hours by the device's average watts, then multiply by 0.85 for conversion losses.

A few honest notes on the fridge, because that's usually the reason people buy:

• A closed, full fridge stays cold about four hours on its own. Plug it in for an hour, unplug for a few, repeat — "running it in shifts" stretches a 1 kWh station across a long outage.
• Keep the fridge at 40°F or below. That's the food-safety line; a cheap fridge thermometer removes the guessing.
• Startup surge matters more than the average. A fridge that draws 150 W running can spike to 500–800 W when the compressor kicks on. That's why surge rating matters as much as capacity — and why a 300 W unit usually can't start a full-size fridge at all.

What a power station will not do: heat your house. A typical space heater draws 1,500 W, which would drain a 1 kWh battery in under an hour. Size for electronics and refrigeration; handle heat another way (we cover that below).

Two options worth your money

Both of these are in the same class — about 1 kWh, lithium iron phosphate batteries, quiet enough to run inside the house. That chemistry matters: LiFePO₄ stations are rated for thousands of charge cycles versus hundreds for older lithium-ion designs, which is what makes them a decade-long purchase instead of a gadget.

EcoFlow DELTA 2 — the stronger pick if you want raw output. 1,024 Wh of capacity, 1,800 W of continuous output (with 2,700 W surge headroom), and six AC outlets, which matters more than it sounds when the router, fridge, lamp, and a phone charger all need power at once. The LiFePO₄ battery is rated for 3,000 charge cycles before dropping to 80% capacity — roughly a decade of occasional outage use. It charges fast off the wall (0–80% in about 50 minutes) and takes up to 500 W of solar input, so panels can meaningfully extend it during a multi-day outage. It weighs 27 pounds — portable, but this is a "carry it to the right room" portable, not a backpack.

Jackery Explorer 1000 v2 — the lighter, quieter pick. 1,070 Wh of capacity with 1,500 W of continuous output (3,000 W surge), also LiFePO₄, rated for 4,000 cycles to 70% capacity. It weighs 23.8 pounds and runs at a whisper — Jackery rates it at 30 dB, genuinely quiet enough for a bedroom overnight. Three AC outlets, up to 400 W of solar input, and full wall recharge in about an hour and a half. If your essential-load list is modest — fridge in shifts, router, phones, lights — the Jackery covers it at a lower weight and usually a lower price.

Which one? If you might ever run a microwave, a coffee maker, or power tools off the station, the DELTA 2's extra output headroom is the deciding factor. If you value light weight, quiet operation, and a lower price for the essentials, the Jackery is the cleaner fit. Neither is a whole-home solution — both are partial backup, honestly sized.

Power station vs. gas generator: the winter tradeoff

A small inverter generator ($800–$1,500) delivers far more energy per dollar than any battery. But it has rules that winter makes harder to follow:

• Never run it indoors or in a garage — carbon monoxide kills, and winter is when people are tempted. Outdoors, 20+ feet from the house, every time.
• It needs stored fuel, and fuel needs stabilizing and rotation.
• It's loud, which is its own problem during a nighttime outage in a quiet neighborhood.

Power stations are indoor-safe, silent, and maintenance-free — but their runtime is measured in hours, not days. Many well-prepared households end up owning both: the battery for the first hours and the quiet nights, the generator for a true multi-day event.

Don't forget the parts that aren't electricity

Backup power solves half of a winter outage. The other half:

• Heat, safely. If you use a space heater, get one with an automatic shut-off switch, keep it away from anything flammable, and never plug it into an extension cord. Layer clothing and close off unused rooms — conserving heat matters more than producing it.
• Pipes. This is the expensive one. A burst pipe costs more than every gadget in your prep closet. When hard cold is forecast: leave faucets on a drip, open cabinet doors so heat reaches the pipes, and know where your main water shutoff is. If a pipe freezes, thaw it with a hair dryer — never a torch.
• Food and water. FEMA's baseline is supplies for at least 72 hours per person, including one gallon of water per person per day. That number isn't about doomsday — it's about the realistic window before services normalize.

The short version

• List your essentials, do the watts × hours math, add 20%. For most homes, that lands near 1 kWh.
• A 1 kWh station covers the real outage list: fridge in shifts (~11 hours on a full-size), router and phones for days, lights and medical devices overnight.
• The EcoFlow DELTA 2 wins on output; the Jackery Explorer 1000 v2 wins on weight and quiet. Both are honest partial backup — not whole-home.
• Heat and pipes matter as much as electricity. Safe backup heat, a drip plan, and knowing your water shutoff round out the job.

Buy before the storm, charge before the storm, test on a calm weekend. The house that's ready in October is the house that's calm in February.

Product facts checked October 2026: EcoFlow DELTA 2 — 1,024 Wh, 1,800 W continuous / 2,700 W surge, LiFePO₄, 3,000 cycles to 80%+, 27 lbs, 500 W max solar input, 0–80% wall charge in ~50 min. Jackery Explorer 1000 v2 — 1,070 Wh, 1,500 W continuous / 3,000 W surge, LiFePO₄, 4,000 cycles to 70%, 23.8 lbs, 400 W max solar input, ~1.6 hr wall charge. Fridge guidance: FDA/FoodSafety.gov keep fridge ≤ 40°F; closed full fridge holds ~4 hours.