megawatt

noun

mega·​watt ˈme-gə-ˌwät How to pronounce megawatt (audio)
: one million watts

Examples of megawatt 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.
Data centers alone are projected to require 127,000 megawatts (MW) of power by 2029, up from 82,000 this year. Frank Holmes, Forbes.com, 14 July 2025 Researchers found that training a model like Open AI’s GPT-3, for example, requires 1,287 megawatt hours of electricity, which is enough to power about 120 homes in the United States for a year. Ashton Jackson, CNBC, 3 July 2025 The major projects coming to the Louisville area will demand hundreds of megawatts — enough to power hundreds of thousands of homes. Connor Giffin, The Courier-Journal, 2 July 2025 Meta’s contracts for clean power from Invenergy now total 1,800 megawatts. Bloomberg, Mercury News, 26 June 2025 See All Example Sentences for megawatt

Word History

Etymology

mega- + watt

First Known Use

circa 1900, in the meaning defined above

Time Traveler
The first known use of megawatt was circa 1900

Browse Nearby Words

Cite this Entry

“Megawatt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/megawatt. Accessed 21 Jul. 2025.

Medical Definition

megawatt

noun
mega·​watt ˈmeg-ə-ˌwät How to pronounce megawatt (audio)
: one million watts
abbreviation MW
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!