What size solar generator for freezer?
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
3. Best cross-brand matches
- Goal Zero Yeti 1000 Core~$900
- surge 2,400W covers your 270W start peak
- 1.4 days of your typical daily use (983Wh / 720Wh)
- EcoFlow DELTA 3~$599
- surge 3,600W covers your 270W start peak
- 1.4 days of your typical daily use (1,024Wh / 720Wh)
- EcoFlow DELTA 3 Plus~$719
- surge 3,600W covers your 270W start peak
- 1.4 days of your typical daily use (1,024Wh / 720Wh)
Static answer (crawlable summary)
Typical device list: Freezer (chest, ~15 cu ft)×1.
| Continuous load | 90 W |
|---|---|
| Startup peak | 270 W (driven by 1× Freezer (chest, ~15 cu ft)) |
| Daily energy use | 720 Wh |
| Recommended capacity | 900 Wh (25% margin included) |
| Minimum inverter | 100 W continuous |
Frequently asked questions
What size solar generator for freezer?
For a typical setup (freezer (chest, ~15 cu ft)), you need at least 90W of continuous power. The single biggest moment is startup: when 1× freezer (chest, ~15 cu ft) kicks on, the momentary draw peaks at 270W. For overnight runtime we recommend at least 900Wh of battery capacity (your devices use about 720Wh per day, plus a 25% margin).
Which power stations can handle this?
Based on published specs, Goal Zero Yeti 1000 Core, EcoFlow DELTA 3, EcoFlow DELTA 3 Plus all cover the 270W startup peak and give you 1.4 days / 1.4 days / 1.4 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). A generator that only meets the running load will trip or stall when the biggest motor starts. Our data sources: U.S. DOE Energy Saver, ENERGY STAR certified product database, and manufacturer spec sheets (Franklin Electric, Goodman, Zoeller).