gigawatt

noun

giga·​watt ˈji-gə-ˌwät How to pronounce gigawatt (audio) ˈgi- How to pronounce gigawatt (audio)
: a unit of power equal to one billion watts

Examples of gigawatt 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.
Still, constructing the gigawatt-scale data centers those companies have promised requires massive new energy facilities. Jordan Novet,jonathan Vanian, CNBC, 28 Apr. 2026 Aiming for completion by 2035, the project is designed to produce at least 1 gigawatt (GW) of power to supply both the islands and mainland Tokyo. Mrigakshi Dixit, Interesting Engineering, 27 Apr. 2026 The partnership will allow Anthropic to secure up to 5 gigawatts of Amazon’s Trainium chips to train and power their artificial intelligence models. ABC News, 21 Apr. 2026 The arrangement gives Anthropic up to 5 gigawatts of capacity via current and future generations of Amazon’s Trainium chips to train and deploy Anthropic’s Claude AI models. Andrew Nusca, Fortune, 21 Apr. 2026 See All Example Sentences for gigawatt

Word History

First Known Use

circa 1962, in the meaning defined above

Time Traveler
The first known use of gigawatt was circa 1962

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Cite this Entry

“Gigawatt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gigawatt. Accessed 1 May. 2026.

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