Pump

1/2 hp well pump running watts and starting watts

Use these values as a planning range only. The conservative default for 1/2 hp well pump is 1,000 W running and 2,500 W starting.

Load typeLowDefaultHigh
Running watts750 W1,000 W1,500 W
Starting watts1,800 W2,500 W3,500 W

Source note

Well pump nameplates vary by depth and controller; default is a conservative 1/2 hp planning value.

Source reference

Never operate a fuel-burning generator indoors, in a garage, on a porch, or near open windows. Use a listed transfer switch or interlock installed by a qualified electrician for home wiring, and verify actual device nameplates before buying equipment.

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