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gigawatt

American  
[gig-uh-wot, jig-] / ˈgɪg əˌwɒt, ˈdʒɪg- /

noun

  1. one billion watts. GW, Gw


Etymology

Origin of gigawatt

First recorded in 1960–65; giga- + watt

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

“You can’t just wake up one morning and say, ‘Oh, I want a gigawatt of compute tomorrow,’” Su said.

From The Wall Street Journal Jul. 22, 2026

The £1.5 billion "repowering" project will take 10 years to complete and will double the electricity output from 539 megawatts to 1 gigawatt, which is enough to power about 650,000 homes.

From BBC Jul. 22, 2026

“Why do we need a nine gigawatt data center in one of the driest states in the nation that’s in a severe drought,” Caroline Gleich, an environmentalist and professional skier, asked.

From Salon Jun. 12, 2026

Musk said this week that SpaceX will try to achieve a roughly annualized rate of 1 gigawatt per year of AI computing power in space by the end of 2027.

From MarketWatch Jun. 10, 2026

The platform begins with a $35 billion investment, led by Apollo, to facilitate Anthropic’s expansion of over 1 gigawatt of compute infrastructure.

From Barron's Jun. 9, 2026

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