hy·​dro·​pow·​er | \ˈhī-drə-ˌpau̇(-ə)r \

Definition of hydropower 

: hydroelectric power

Examples of hydropower in a Sentence

Recent Examples on the Web

The Xe Pian-Xe Namnoy hydropower project is part of Laos’s long-running plans to turn itself into a major power producer in Southeast Asia, supplying larger neighbors such as Thailand and Vietnam. James Hookway, WSJ, "Hundreds Missing in Laos After Dam Collapses," 24 July 2018 Even sources with stalled growth—like hydropower, which has faced protest from indigenous people in Brazil, to name one example—still expect to see global growth. David Grossman, Popular Mechanics, "Renewable Energy Will Grow Massively Across The Globe by 2023, Says IEA Report," 9 Oct. 2018 In Brazil the firms together run hydropower stations, and constitute one of the largest private energy producers. The Economist, "Portugal’s energy giant may sell to a Chinese state-owned utility," 19 May 2018 Two years ago, lawmakers required utilities to make big purchases of offshore wind electricity and hydropower, and the critics say the state needs more time to let that legislation take effect. Jon Chesto, BostonGlobe.com, "Mass. lawmakers wrap up work on energy legislation," 13 July 2018 Renewables—mainly hydropower and biofuels—currently account for 10 percent of the country’s energy needs. Nathanael Johnson, WIRED, "Where Can Climate Activists Find Common Ground?," 9 July 2018 Even conventional hydropower only has an average capacity factor of 45.2 percent. Megan Geuss, Ars Technica, "Scotland’s floating wind farm is showing how powerful offshore wind can be," 4 Mar. 2018 Washington state, largely due to an abundance of hydropower, gets more than 70 percent of its electricity from sources that don’t produce carbon dioxide or other greenhouse-gas emissions. Hal Bernton, The Seattle Times, "Washington law ordered public agencies to buy electric cars. They’re falling short, report says.," 3 June 2018 The return of a snowpack to California helped boost the production of hydropower, which allowed it to stay ahead of wind as the largest source of renewable energy. John Timmer, Ars Technica, "US electricity use drops, renewables push fossil fuels out of the mix," 20 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hydropower.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of hydropower

1933, in the meaning defined above

Keep scrolling for more

Learn More about hydropower

Share hydropower

Statistics for hydropower

Last Updated

9 Dec 2018

Look-up Popularity

Time Traveler for hydropower

The first known use of hydropower was in 1933

See more words from the same year

Keep scrolling for more

More Definitions for hydropower



English Language Learners Definition of hydropower

: electricity produced from machines that are run by moving water

More from Merriam-Webster on hydropower

Rhyming Dictionary: Words that rhyme with hydropower

Comments on hydropower

What made you want to look up hydropower? Please tell us where you read or heard it (including the quote, if possible).


to enclose within walls

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!