kilowatt-hour

noun

kilo·​watt-hour ˈki-lə-ˌwät-ˈau̇(-ə)r 

ˈkē-lə-

: a unit of work or energy equal to that expended by one kilowatt in one hour or to 3.6 million joules

Examples of kilowatt-hour in a Sentence

Recent Examples on the Web

While the average price for electricity in the U.S. is about 16.8 cents per kilowatt-hour, Arbor discovered a wide range between states. —Ben Kesslen, Quartz, 10 Dec. 2024

The kicker: Li-S batteries are expected to cost less than half the price per kilowatt-hour than Li-ion. —New Atlas, 6 Dec. 2024

For comparison, residents in neighboring states Oregon, Nevada and Arizona only pay 15 cents, 13 cents and 12 cents per kilowatt-hour respectively. —Mark R. Weaver, Newsweek, 4 Dec. 2024

During a recent United Nations climate conference, task force members proposed a climate tax on crypto mining set at $0.045 per kilowatt-hour (kWh) of electricity consumed. —Andrew Leahey, Forbes, 26 Nov. 2024

Word History

First Known Use

1892, in the meaning defined above

Kids Definition

kilowatt-hour

noun

: a unit of work or energy equal to that expended by one kilowatt in one hour and equal to 3.6 million joules

Medical Definition

kilowatt-hour

noun

: a unit of work or energy equal to that expended by one kilowatt in one hour