What size generator to run a refrigerator?

Check, uncheck or adjust the typical device list below — watts, startup surge and battery size update instantly. Numbers come from U.S. DOE, ENERGY STAR and manufacturer spec sheets, not marketing copy.

1. Check what you need to power

Refrigeration & Freezers

  • 1

Kitchen

Heating, Cooling & Fans

Water & Pumps

Laundry & Cleaning

Electronics & Office

Medical Devices

Power Tools & Outdoor

Lighting

2. Your sizing

Running load125 Wtypical certified-model range 114–134 W; we size with a conservative value
Startup peak1,200 Wdriven by 1× Refrigerator (top-freezer, ~16 cu ft)
Daily energy1,000 Wh
Recommended capacity1,250 WhBasis: 1 day of typical usage, incl. 25% margin for inverter loss & battery depth of discharge
Backup duration:

Assumptions: daily hours per device follow DOE / ENERGY STAR duty cycles; capacity adds a 25% margin. Check your appliance nameplates — actual draw varies by model.

3. Best matches from our 6-brand database

  1. Anker SOLIX F1500~$599
    • rated 1,800W covers your 140W continuous load
    • surge 2,400W covers your 1,200W start peak
    • 1.5 days of your typical daily use (1,536Wh / 1,000Wh)
    Check price →
  2. EcoFlow DELTA 3 Max~$899
    • rated 2,400W covers your 140W continuous load
    • surge 4,800W covers your 1,200W start peak
    • 2.0 days of your typical daily use (2,048Wh / 1,000Wh)
    Check price →
  3. EcoFlow DELTA 3 Max Plus~$1,149
    • rated 3,000W covers your 140W continuous load
    • surge 6,000W covers your 1,200W start peak
    • 2.0 days of your typical daily use (2,048Wh / 1,000Wh)
    Check price →

Static answer (crawlable summary)

Typical device list: Refrigerator (top-freezer, ~16 cu ft)×1.

Estimated from: Energy Star Certified Products

Continuous load125 W
Startup peak1,200 W (driven by 1× Refrigerator (top-freezer, ~16 cu ft))
Daily energy use1,000 Wh
Recommended capacity1,250 Wh (25% margin included)
Minimum inverter140 W continuous

Frequently asked questions

What size generator to run a refrigerator?

For a typical setup (Refrigerator (top-freezer, ~16 cu ft)), you need at least 125W of continuous power. The single biggest moment is startup: when 1× refrigerator (top-freezer, ~16 cu ft) kicks on, the momentary draw peaks at 1,200W. For a full day of runtime we recommend at least 1,250Wh of battery capacity (your devices use about 1,000Wh per day, plus a 25% margin for a full day of use).

Which power stations can handle this?

Based on published specs, Anker SOLIX F1500, EcoFlow DELTA 3 Max, EcoFlow DELTA 3 Max Plus cover the 1,200W startup peak and deliver 1.5 days / 2.0 days / 2.0 days of typical daily use. Check the comparison cards above for the full numbers.

Why is the startup surge higher than the running watts?

Motor-driven devices (fridge compressors, well pumps, air conditioners) draw 2-5× their running power for a split second at startup — measured as locked-rotor amps (LRA). On this page the biggest spike comes from the Refrigerator (top-freezer, ~16 cu ft): a station that only meets the running load will trip or stall when it starts. Data sources: U.S. DOE Energy Saver, ENERGY STAR certified products, manufacturer spec sheets.

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