NC State Extension

Kilowatt Hour (KWh) – Defined

A measurement that appears on your electric bill to show your usage. One thousand watt-hours equal 1 kWh. Practical info: A typical U.S. household uses approximately 27,022 kilowatt-hours of electricity per year. Ten 100-watt bulbs operating at full power for one hour would consume 1 kWh of energy.

Written By

Photo of Laura LanghamLaura LanghamEnergy Conservation Program Manager (919) 515-8474 laura_langham@ncsu.eduAgricultural and Human Sciences - NC State University
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