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Guide: the refrigerator

How long can a power station run a refrigerator?

A 1,024 Wh power station runs a fridge with a 550 kWh-a-year EnergyGuide label for about 12 hours. A 2 kWh unit runs the same fridge about 24 hours, and an Explorer 2000 Plus with one added battery pack about 49 hours.

About 12 h
1,024 Wh unit, fridge labeled 550 kWh a year
About 24 h
2 kWh unit, same fridge

Our arithmetic from stated capacity and an EnergyGuide figure, Oct 7, 2026. See source

An open refrigerator lit up in a dark kitchen.
On this page
  1. Key facts
  2. Start with the yellow label
  3. Hours for your power station
  4. Estimated hours by EnergyGuide label
  5. The food-safety clock sets the target
  6. What each extra dollar buys
  7. Units sized for a fridge
  8. Refrigerator questions
  9. Sources

Key facts

  • Start with the yellow EnergyGuide label: it states the fridge's energy use1.
  • 550 kWh a year / 365 = 1.51 kWh a day, an average of about 63 W (our arithmetic).
  • The compressor runs at 400 to 500 W while it is on, per two utility charts, so the station's output must cover that23.
  • Kept closed, a refrigerator keeps food safe for up to 4 hours without power4.

Start with the yellow label

The FTC's EnergyGuide label, the yellow tag on refrigerators and freezers, tells you how much energy the appliance uses1. Divide the yearly kilowatt-hours by 365 for a daily figure, then by 24 for the average draw. A 550 kWh label works out to 1.51 kWh a day, or about 63 W on average.

Then do the same sum as any other load. Usable energy is the stated capacity x 0.75. A 1,024 Wh Jackery HomePower 1000 Plus v2 gives about 768 Wh; 768 / 63 = about 12 hours5. A 2,042.8 Wh Jackery Explorer 2000 Plus gives about 1,532 Wh, about 24 hours. Add one 2,042.8 Wh Battery Pack 2000 Plus and the total of 4,085.6 Wh gives about 3,064 Wh, about 49 hours67.

No label? Utilities Kingston's chart lists a fridge at 500 W running about 150 hours a month, 75 kWh a month2. That is 2.5 kWh a day, an average of about 104 W, typical of an older or larger fridge. We use it as the heavy case in the table.

Running watts decide the minimum size. Average draw sets the hours; the compressor's running draw sets whether the station can run the fridge at all. Otter Tail Power lists 400 W for an ENERGY STAR 19 cu ft frost-free fridge and 500 W for a 17 cu ft non frost-free model3. A 300 W inverter such as the Jackery Explorer 300's is below that12.

Hours for your power station

Slide to the station's stated capacity. The panel shows hours for a fridge labeled 550 kWh a year, and for a 700 kWh fridge.

  • Our arithmetic: capacity x 0.75 / average watts (label kWh / 8,760 hours).
  • A fridge opened often, or in a hot kitchen, uses more than its label.

Hours, fridge labeled 550 kWh a year

24.37 hours

Hours, fridge labeled 550 kWh a year24.37 hours
Hours, fridge labeled 700 kWh a year19.15 hours

EnergyGuide method per the FTC; capacities from each maker's page.

Estimated hours by EnergyGuide label

Our arithmetic at 75 percent usable. The last column is Utilities Kingston's 75 kWh-a-month fridge.

Power station400 kWh/yr550 kWh/yr700 kWh/yr2.5 kWh/day
Lion Summit (530 W output), 665 Wh910.97.96.24.8
Jackery HomePower 1000 Plus v2, 1,024 Wh516.812.29.67.4
Lion Safari, 1,612 Wh826.519.315.111.6
Anker SOLIX S2000, 2,010 Wh1033.024.018.914.5
Jackery Explorer 2000 Plus, 2,042.8 Wh633.624.419.214.7
EcoFlow DELTA 3 Max, 2,048 Wh1133.624.519.214.7
Explorer 2000 Plus + one Battery Pack 2000 Plus, 4,085.6 Wh767.148.838.329.4
SourceOur arithmeticRead Oct 7, 2026Our arithmeticRead Oct 7, 2026Our arithmeticRead Oct 7, 2026Utilities KingstonRead Oct 7, 2026

Hours. Average watts: 45.7 (400 kWh), 62.8 (550 kWh), 79.9 (700 kWh), 104.2 (2.5 kWh a day). The Lion Summit's 530 W output is close to a fridge's 400 to 500 W running draw; check the fridge's start draw first.

The food-safety clock sets the target

FoodSafety.gov says a refrigerator keeps food safe for up to 4 hours during an outage, and a full freezer holds a safe temperature for about 48 hours (24 if half full) with the door closed4. So for an outage of an evening, a closed door may be all you need. Past about 4 hours, a station that covers the fridge for 12 to 24 hours is what saves the food.

Keep the door shut either way. Every opening lets cold air out, and the compressor has to run longer to win it back, which shortens the battery's hours.

What each extra dollar buys

On our October 2 read, the Anker SOLIX S2000 cost about $338 per kWh of stated capacity and the EcoFlow DELTA 3 Max about $4291011. On October 7, the Jackery HomePower 1000 Plus v2 was $629.00 (about $614 per kWh) and the Lion Safari $1,399.00 (about $868 per kWh)58. If the fridge is the only job, the cheaper units do it for less.

The pricier units sell on other strengths. The HomePower 1000 Plus v2 expands to 11 kWh, switches over in under 10 ms and recharges in 50 minutes5. The Explorer 2000 Plus takes battery packs at $799.00 for 2,042.8 Wh, about $391 per added kWh7. The Safari has 3,000 W of output and a TT-30 RV outlet8.

Units sized for a fridge

Each maker's own page has the current price and the full spec sheet.

Good for a fridge plus heavier loads at 3,000 W

Lion Safari

Capacity
1,612 Wh
Listed price
$1,399.00
Checked
Oct 7, 2026
See prices on Lion Energy

Good for a fridge for about a day, for the least per kWh we read

Anker SOLIX S2000

Per kWh, Oct 2
About $338
Listed price
$679.99
Checked
Oct 7, 2026
See prices on Anker SOLIXOpens Anker SOLIX's site. Not a referral link.

Refrigerator questions

Can a 1,000 Wh power station run a refrigerator?

Yes, if its output covers the compressor (400 to 500 W running in two utility charts23). A 1,024 Wh unit runs a 550 kWh-a-year fridge about 12 hours (1,024 x 0.75 / 63).

How long will a 2,000 Wh power station run a fridge?

About 24 hours for a 550 kWh-a-year fridge, about 19 hours for a 700 kWh fridge and about 15 hours for an older fridge using 2.5 kWh a day (our arithmetic at 75 percent usable).

Will a 300 Wh power station run a fridge?

No. A 300 W inverter such as the Jackery Explorer 300's is below a fridge's running draw312. Compact units suit routers and phones; see compact power stations.

Can it run a fridge and a chest freezer?

Add the two labels. A 550 kWh fridge plus a 250 kWh chest freezer is 800 kWh a year, about 91 W on average, so a 2,042.8 Wh unit lasts about 17 hours (1,532 / 91).

Do I need one for a short outage?

Maybe not. FoodSafety.gov gives a closed fridge up to 4 hours and a full freezer about 48 hours4. A station earns its place in outages longer than that.

Sources

  1. How To Use the EnergyGuide Label To Shop for Home AppliancesFederal Trade Commission, read Oct 7, 2026
  2. Electricity use and appliancesUtilities Kingston, read Oct 7, 2026
  3. Appliance energy use chartsOtter Tail Power Company, read Oct 7, 2026
  4. Food Safety During Power OutageFoodSafety.gov, read Oct 7, 2026
  5. HomePower 1000 Plus v2Jackery, read Oct 7, 2026
  6. Explorer 2000 Plus Portable Power StationJackery, read Oct 7, 2026
  7. Battery Pack 2000 PlusJackery, read Oct 7, 2026
  8. Lion SafariLion Energy, read Oct 7, 2026
  9. Lion SummitLion Energy, read Oct 5, 2026
  10. SOLIX S2000 Portable Power StationAnker SOLIX, read Oct 2, 2026
  11. DELTA 3 Max Portable Power Station (2048Wh)EcoFlow, read Oct 2, 2026
  12. Explorer 300 Portable Power StationJackery, read Oct 2, 2026

About this page

We may be paid when you buy through links on this page.

We may be paid when you buy through links on this page.

Prices and specifications are each maker's own, as listed on the date shown, and change often during sales. The maker's page is the final word on price, availability and terms.

Runtime figures are estimates from stated capacity, not measurements. OutageReady Guide does not sell power stations and has not tested any product.