English Reference
Noun

hydropower

n.
B2 Upper Intermediate US /ˈhaɪdɹoʊˌpaʊɹ/ UK /hˈaɪdɹəpˌaʊɐ/ hy·dropow·er

n.a type of energy made by using the movement of water, like the flow of a river or the power of a waterfall. It is a common way to produce electricity.

n.the generation of electricity by the controlled flow of water, typically through the use of dams or turbines. Often used as a renewable energy source in environmental and engineering contexts.


SIMPLE

The local town uses hydropower to get its electricity.

CONTEXTUAL

Many countries are investing in hydropower to reduce their reliance on fossil fuels and lower carbon emissions.

COMPLEX

While hydropower remains a significant contributor to the global renewable energy mix, its environmental impact on aquatic ecosystems often necessitates careful engineering and regulatory oversight.

Supporters say it will bring irrigation, drinking water and hydropower to drought-prone Bundelkhand.

Al Jazeera· 15 Aug 2026

Romania also has huge hydropower capacity, although that has been heavily cut by the same low river levels that caused the nuclear shutdown.

BBC News· 13 Aug 2026
This entry
Level B2 · Upper Intermediate
Frequency Occasional
Updated