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.
India, the second-largest coal consumer and producer, is bracing for a scorching summer and will rely more on coal to meet the peak demand of 270 gigawatts -- nearly twice the electricity Spain can produce. Arkansas Online, 25 Mar. 2026 The gas that was burned off represents around 27,500 gigawatt hours of power generation — that’s the equivalent of one year’s worth of electricity consumption by 625 million Nigerians (the actual population is 237 million) going to waste. Noo Saro-Wiwa, The Dial, 24 Mar. 2026 Meta is the first to sign on, as the social media company builds out multiple gigawatts of AI data centers and plans to shell out up to $135 billion on capital expenditures this year. Katie Tarasov, CNBC, 24 Mar. 2026 On the Earth’s surface, companies, including Musk’s xAI, are already planning terrestrial AI data centers that’ll reach 1,000 megawatts (1 gigawatt) of computing capacity. Michael Kan, PC Magazine, 23 Mar. 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 26 Mar. 2026.

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