hydropower

noun

hy·​dro·​pow·​er ˈhī-drə-ˌpau̇(-ə)r How to pronounce hydropower (audio)
: hydroelectric power

Examples of hydropower in a Sentence

Recent Examples on the Web
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When Lake Powell’s levels fall below minimum power pool, that means water can no longer flow through the intake tubes for Glen Canyon Dam‘s hydropower facility, which is the primary method for moving water downstream from the reservoir in southern Utah. Elise Schmelzer, Denver Post, 21 June 2026 Meanwhile, power constraints can hit hydropower-dependent aluminum smelting in regions such as China. Bloomberg, Fortune, 21 June 2026 On a recent windy weekday, for example, 56% of the country’s electricity was coming from wind power, 13% from solar, 17% from biomass, and 14% from hydropower. Constance Malleret, Christian Science Monitor, 21 June 2026 According to the company, it is expected to have seven times the generating capacity of the Ardnacrusha hydropower plant. Mrigakshi Dixit, Interesting Engineering, 17 June 2026 See All Example Sentences for hydropower

Word History

First Known Use

1933, in the meaning defined above

Time Traveler
The first known use of hydropower was in 1933

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Cite this Entry

“Hydropower.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydropower. Accessed 25 Jun. 2026.

Kids Definition

hydropower

noun
hy·​dro·​pow·​er ˈhī-drə-ˌpau̇(-ə)r How to pronounce hydropower (audio)
: hydroelectric power
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