kilo·​watt | \ ˈki-lə-ˌwät \

Definition of kilowatt

: 1000 watts

Examples of kilowatt in a Sentence

Recent Examples on the Web

Because Archinaut enables multiple kilowatts of power to be delivered on small launchers like the Rocket Lab Electron vehicle, more capable satellites can be deployed at lower cost. Avery Thompson, Popular Mechanics, "Small Satellites Could 3D-Print Their Own Solar Arrays In Space," 9 Aug. 2018 The system has a 30 year lifespan, and is projected to produce more than 5.7 million kilowatts of electricity, enough to power 460 homes for a year. William Thornton,, "Huntsville company owner received at White House," 20 Apr. 2018 Think of it as a tiny nuclear reactor available in two sizes: one kilowatt or 10 kilowatts. Kirsten Korosec, Fortune, "How NASA Might Sustain Life on Mars and the Moon Using Mini Nuclear Reactors," 19 Jan. 2018 But by 2016, the cost had dropped by about a third, to less than $2,500 per kilowatt. Avery Thompson, Popular Mechanics, "How Solar Is Conquering the Grid," 10 Aug. 2018 For most Alabama Power customers with solar, that fee is $5 per kilowatt, based on the size of their array. Dennis Pillion,, "Alabama Power solar fee challenged as 'unjust, unlawful' in complaint to PSC," 26 Apr. 2018 Three weeks after Maria hit Puerto Rico, RPPR raised funds and donations, and began installing small five-kilowatt solar arrays—enough to power a full kitchen, lights, and ceiling fans—in community centers, which acted as relief hubs. Diana Budds, Curbed, "How architects and designers are rebuilding Puerto Rico," 20 Sep. 2018 Developed with the Department of Energy, each Kilopower reactor is small enough to be carried on a rocket but would have enough power to continuously provide up to 10 kilowatts of electrical power for at least 10 years. Rob Nikolewski,, "NASA looks to send a small nuclear reactor to the moon and Mars," 23 May 2018 The two turbines will generate electricity at 78 cents a kilowatt-hour—compared with 9.4 cents for new onshore wind, 5.6 cents for new solar, and around three cents for energy bought on the open market. The Editorial Board, WSJ, "A Green Logrolling Classic," 18 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'kilowatt.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of kilowatt

1884, in the meaning defined above

History and Etymology for kilowatt

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Statistics for kilowatt

Last Updated

9 Feb 2019

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Time Traveler for kilowatt

The first known use of kilowatt was in 1884

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More Definitions for kilowatt



English Language Learners Definition of kilowatt

: a unit of electrical power equal to 1,000 watts


kilo·​watt | \ ˈki-lə-ˌwät \

Kids Definition of kilowatt

: a unit of electrical power equal to 1000 watts


kilo·​watt | \ ˈkil-ə-ˌwät \

Medical Definition of kilowatt

: 1000 watts

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Rhyming Dictionary: Words that rhyme with kilowatt

Spanish Central: Translation of kilowatt

Nglish: Translation of kilowatt for Spanish Speakers

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