backuppowercalc
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Use case

Backup power for a food truck

Food-truck loads are refrigeration-heavy with multiple compressors. Size for full running load plus the single largest compressor surge.

Running
2,560W
Peak surge
2,960W
Recommend
4,000W

The chest freezer drives the peak here, surging when it starts. Sizing for the running total plus that single largest surge — not the sum of every surge — gives a realistic 4,000W (4.0kW) recommendation.

Typical loads for a food truck

LoadRunningStarting
Refrigerator160W480W
Chest freezer200W600W
Household lights (LED)200W200W
Microwave (1000W)1000W1000W
Coffee maker1000W1000W

Size your exact setup

Common questions

What size generator do I need for a food truck?

For this typical load set, about a 4,000W (4.0kW) class covers it — that's 2,560W running plus the largest startup surge (from the chest freezer), with a 20% margin.

Can I run more than this?

Yes — this is a representative set. Add or remove loads in the load sizer to match your exact situation and get an updated number.

Other scenarios