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Electrician1001

Generator Size Calculator

Generator watts from running load plus the largest motor start.

Inputs

Inputs and assumptions

Everything running at once.

Biggest motor in the load.

Starting watts per running watt, typically 2 to 4.

Result

In kilowatts
9.00 kW
Recommended generator size
9,000 W
Screening tool. Verify against the NEC as adopted locally, the AHJ, and nameplate data before acting.

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Workspace

Keep the assumptions with the result.

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