kilowatt-hour

noun

kilo·​watt-hour ˈki-lə-ˌwät-ˈau̇(-ə)r How to pronounce kilowatt-hour (audio)
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Photo : Andrew Pogue The solar array creates almost 4,000 kilowatt-hours of energy every hour. Tori Latham, Robb Report, 16 Apr. 2025 The standard-range battery of the Ford Mustang Mach-E — one of the most popular electric vehicles in the United States, according to Kelley Blue Book — is 72 kilowatt-hours. Camila Pedrosa, Sacbee.com, 13 Apr. 2025 Electricity In March, the average price of electricity nationwide was 18 cents per kilowatt-hour. Claire Malon, Chicago Tribune, 11 Apr. 2025 For every kilowatt hour of solar energy sent to the grid, the customer received a kilowatt-hour credit. Angela Palermo, Idaho Statesman, 6 Apr. 2025 See All Example Sentences for kilowatt-hour

Word History

First Known Use

1892, in the meaning defined above

Time Traveler
The first known use of kilowatt-hour was in 1892

Browse Nearby Words

Cite this Entry

“Kilowatt-hour.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/kilowatt-hour. Accessed 24 Apr. 2025.

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
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!