Renewable Energy
ri-NOO-uh-bul EN-er-jee
/rɪˌnjuːəbəl ˈɛnərdʒi/
Energy from a source that is not depleted when used, such as wind or solar power.
Emphasizes sources that are naturally replenished on a human timescale, unlike fossil fuels.
The story behind the word. The term 'Renewable Energy' combines 'renewable' (from Latin 're-' meaning 'again' and 'novare' meaning 'to make new') with 'energy' (from Greek 'energeia,' meaning 'activity' or 'operation'). The concept of harnessing naturally replenishing sources like wind and sun is ancient, but the modern term became prominent in the mid-20th century as concerns about fossil fuel depletion and environmental impact grew.
Word relationships
- Clean energy: Often used interchangeably, but 'clean energy' specifically highlights the low environmental impact, while 'renewable' emphasizes replenishment.
- Green energy: Similar to clean energy, focusing on environmental friendliness, but 'renewable' is more precise about the source's replenishability.
- Non-renewable energy: Energy from sources that are finite and cannot be replenished on a human timescale, such as fossil fuels and nuclear energy.
Word family
- Renewable (adjective): Capable of being renewed; able to be replaced or restored.
- Renew (verb): To resume (an activity) after an interruption; to make (something) like new again.
Collocations
- sources of renewable energy
- develop renewable energy
- transition to renewable energy
- sustainable renewable energy
Example sentences
- "Investing in renewable energy sources is crucial for reducing our carbon footprint." Discussing sustainable development.
- "Solar and wind power are leading examples of rapidly expanding renewable energy technologies." Reporting on technological advancements.
Memory hook
Think of energy that can be 'RE-NEWED' or made new again, like the sun or wind. Energy Made New
When not to use
Do not use it for energy sources that are finite or take millions of years to form (e.g., coal, oil, natural gas).
Fun facts
- Hydropower is one of the oldest forms of renewable energy, used for millennia to grind grain and later to generate electricity.
- Geothermal energy harnesses heat from the Earth's interior.
Related words
Explore more words
renewable, biomass, regenerative, sustainable, solar, geothermal
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