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
For the grid, cost per kilowatt-hour of storage matters more than squeezing out a few extra watts per kilogram.
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Tejasri Gururaj, Interesting Engineering, 6 Jan. 2026
That’s what makes the wireless charging on the 108-kilowatt-hour pack in the forthcoming Porsche Cayenne Electric so notable.
—IEEE Spectrum, 30 Dec. 2025
Nationally, the average retail price for electricity gained 7.4% in September to a record 18.07 cents per kilowatt-hour, the biggest gain since December 2023, according to the latest government data.
—Jennifer A. Dlouhy, Boston Herald, 18 Dec. 2025
That descent has been estimated to have the potential to generate some 300 billion kilowatt-hours of electricity annually – roughly triple the output of China’s Three Gorges Dam, currently the world’s most powerful.
—Simone McCarthy, CNN Money, 17 Dec. 2025
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Tejasri Gururaj, Interesting Engineering, 6 Jan. 2026
That’s what makes the wireless charging on the 108-kilowatt-hour pack in the forthcoming Porsche Cayenne Electric so notable.
—IEEE Spectrum, 30 Dec. 2025
Nationally, the average retail price for electricity gained 7.4% in September to a record 18.07 cents per kilowatt-hour, the biggest gain since December 2023, according to the latest government data.
—Jennifer A. Dlouhy, Boston Herald, 18 Dec. 2025
That descent has been estimated to have the potential to generate some 300 billion kilowatt-hours of electricity annually – roughly triple the output of China’s Three Gorges Dam, currently the world’s most powerful.
—Simone McCarthy, CNN Money, 17 Dec. 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 13 Jan. 2026.
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