hydropower
C1-C2Formal / Technical / Academic
Definition
Meaning
Electricity generated using the energy of moving water, typically from dams.
A renewable energy technology that harnesses the kinetic and potential energy of water to produce electrical power; can refer broadly to the infrastructure, industry, or policy around such generation.
Linguistics
Semantic Notes
The term is a compound of 'hydro' (water) and 'power' (energy/electrical power). It is used interchangeably with 'hydroelectric power' or 'hydroelectricity' but is slightly more technical. It refers primarily to the electricity output, not the water itself.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning. 'Hydroelectric power' is a common full variant in both. The compound 'hydropower' is used identically.
Connotations
Neutral technical term associated with renewable energy. In some North American contexts (e.g., Canada, Pacific Northwest), 'hydro' alone can colloquially mean electricity in general, derived from its historical reliance on hydropower.
Frequency
Equally common in technical contexts in both varieties. In everyday speech, 'hydroelectricity' might be marginally more common in the UK.
Vocabulary
Collocations
Grammar
Valency Patterns
[Country/Region] + relies on/uses + hydropowerto generate/produce + hydropower + from + [water source]the development/expansion of + hydropowerVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “[No common idioms for this technical term]”
Usage
Context Usage
Business
Used in energy sector reports, investment proposals, and sustainability strategies. E.g., 'The company is diversifying into hydropower assets.'
Academic
Common in environmental science, engineering, and energy policy papers. E.g., 'The study assessed the lifecycle carbon footprint of hydropower.'
Everyday
Appears in news articles about energy and the environment. E.g., 'The country gets most of its electricity from hydropower.'
Technical
Precise term in engineering and energy grid management. E.g., 'The pumped-storage hydropower facility provides grid stability.'
Examples
By Part of Speech
verb
British English
- The region is ideally suited to be hydropowered.
- [Note: 'hydropower' as a verb is extremely rare; the concept is expressed periphrastically: 'generate power from hydro sources']
American English
- The valley was hydropowered in the 1950s.
- [See British note]
adverb
British English
- [No standard adverbial form]
American English
- [No standard adverbial form]
adjective
British English
- The hydropower sector is seeking new investment.
- Hydropower development can impact local ecosystems.
American English
- The hydropower industry is well-established there.
- They discussed hydropower potential along the river.
Examples
By CEFR Level
- Water can make electricity. This is called hydropower.
- Many countries use hydropower from rivers and dams.
- Hydropower is a clean source of energy.
- The government plans to increase its reliance on hydropower to meet carbon targets.
- While renewable, large hydropower projects often face criticism for their environmental impact.
- The variable output of hydropower, dependent on seasonal rainfall, necessitates a complementary energy mix.
- The report evaluated the socio-economic trade-offs of subsidising small-scale hydropower installations.
Learning
Memory Aids
Mnemonic
HYDRO (think of water, like a hydrotherapy spa) + POWER (electricity). Imagine a powerful waterfall (hydro) generating electrical power.
Conceptual Metaphor
WATER IS A FUEL / NATURAL FLOW IS AN ENERGY SOURCE.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate as 'гидросила' (hydraulic force) or 'водная энергия' (water energy - too literal). The standard Russian equivalent is 'гидроэнергетика' (the field) or 'гидроэлектроэнергия' (the power). 'ГЭС' (гидроэлектростанция) is the power plant.
Common Mistakes
- Using 'hydropower' to refer to the physical force of water in a non-electrical context (e.g., for milling). Confusing it with 'hydraulic power' which refers to using pressurised fluid for mechanical force, not necessarily electricity.
Practice
Quiz
Which of the following is the MOST accurate synonym for 'hydropower' in a technical report?
FAQ
Frequently Asked Questions
Yes, in modern usage they are synonymous. 'Hydroelectric power' is the more formal, full term, while 'hydropower' is a standard technical abbreviation.
While a low-carbon energy source, large dams can disrupt river ecosystems, affect fish migration, displace communities, and in tropical regions, decaying vegetation in reservoirs can produce methane, a potent greenhouse gas.
Typically, no. Energy from waves or tides is usually categorised separately as 'marine energy', 'tidal power', or 'wave power'. Hydropower conventionally refers to energy from freshwater flows, often dammed.
In certain regions with a dominant hydropower sector (e.g., parts of Canada), 'hydro' can colloquially mean 'electricity bill' or 'the electric company'. However, in international technical contexts, using 'hydro' alone for 'hydropower' is informal and potentially ambiguous.