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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:

That is comparable to the combined yearly electricity production of roughly 130 continuously operating nuclear power plants, each with a capacity of about one gigawatt.

From Science Daily ● Nov. 5, 2026

The company said it would work to "bolster local water security, and add more than one gigawatt of clean energy capacity" to the national grid.

From Barron's ● Nov. 4, 2026

It would have a power load - the total amount of electrical power drawn at any given time - of 1 gigawatt, the equivalent to 200,000–250,000 average UK homes.

From BBC ● Nov. 3, 2026

For scale, just a single gigawatt is enough to power roughly 750,000 homes for a year.

From MarketWatch ● Oct. 21, 2026

The firm has a manufacturing facility outside of Denver that will eventually be capable of producing as much as one gigawatt of Spark capacity annually, Lochmiller said.

From The Wall Street Journal ● Sep. 17, 2026

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