Synonyms

renewable energy

American

noun

any naturally occurring, theoretically inexhaustible source of energy, as biomass, solar, wind, tidal, wave, and hydroelectric power, that is not derived from fossil or nuclear fuel.

renewable energy British

noun

another name for alternative energy

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of renewable energy

First recorded in 1970–75

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.

C-PACE lets owners secure low-cost funding for work that can include water-conservation and energy-efficiency projects, as well as renewable energy systems.

From The Wall Street Journal • Apr. 16, 2026

As the world shifts toward electrification and renewable energy, demand for lithium has surged dramatically.

From Science Daily • Apr. 16, 2026

Find insight on demand for renewable energy sources and more in the latest Market Talks covering energy and utilities.

From The Wall Street Journal • Apr. 16, 2026

Giant batteries are used to store excess renewable energy, which can then be used to power homes in the event of low supplies.

From BBC • Apr. 11, 2026

Dozens of cities in the United States are now following suit, pledging to use 100 percent renewable energy by 2050 or sooner.

From "1919 The Year That Changed America" by Martin W. Sandler

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023