pumped storage
noun
: a hydroelectric system in which electricity is generated during periods of high demand by the use of water that has been pumped into a reservoir at a higher altitude during periods of low demand
Examples of pumped storage in a Sentence
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While pumped storage is cheaper to run and slightly more efficient over an entire storage cycle, StEnSea can potentially be installed across several locations worldwide to support immense storage capacity.
—
New Atlas,
16 May 2025
Companies have proposed pumped storage hydropower projects, an old and expensive technology that uses huge amounts of water to store energy in California’s mountains -- and in one controversial case, a desert.
—
Dave Merrill,
Bloomberg.com,
18 Sep. 2020
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New Atlas,
16 May 2025
Companies have proposed pumped storage hydropower projects, an old and expensive technology that uses huge amounts of water to store energy in California’s mountains -- and in one controversial case, a desert.
—
Dave Merrill,
Bloomberg.com,
18 Sep. 2020
Cite this Entry
“Pumped storage.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pumped%20storage. Accessed 7 Jul. 2026.
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