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
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The average cost of electricity per kilowatt-hour in the U.S. rose to 18.8 cents in September, compared with 17.8 cents in September 2024 and 13.7 cents in September 2020, according to data from the Federal Reserve Bank of St. Louis.
—
Robert Birsel, MSNBC Newsweek, 21 Nov. 2025
China General Nuclear Power Group (CGN) has officially commenced full-scale construction on a massive new energy facility in East China’s Shandong Province, a project designed to generate 50 billion kilowatt-hours of electricity annually.
—Aman Tripathi, Interesting Engineering, 19 Nov. 2025
The researchers also calculated that one of their supercapacitors could store around 10 kilowatt-hours—enough to serve about one third of an average American’s daily energy use—though the number is only theoretical.
—Perri Thaler, IEEE Spectrum, 22 Oct. 2025
That rate hike could increase the monthly bill for residents using 1,000 kilowatt-hours of electricity by around $10.
—Jordan Smith, IndyStar, 17 Oct. 2025
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Robert Birsel, MSNBC Newsweek, 21 Nov. 2025
China General Nuclear Power Group (CGN) has officially commenced full-scale construction on a massive new energy facility in East China’s Shandong Province, a project designed to generate 50 billion kilowatt-hours of electricity annually.
—Aman Tripathi, Interesting Engineering, 19 Nov. 2025
The researchers also calculated that one of their supercapacitors could store around 10 kilowatt-hours—enough to serve about one third of an average American’s daily energy use—though the number is only theoretical.
—Perri Thaler, IEEE Spectrum, 22 Oct. 2025
That rate hike could increase the monthly bill for residents using 1,000 kilowatt-hours of electricity by around $10.
—Jordan Smith, IndyStar, 17 Oct. 2025
See All Example Sentences for kilowatt-hour
Cite this Entry
“Kilowatt-hour.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/kilowatt-hour. Accessed 3 Dec. 2025.
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