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Energy efficiency
UK //ˈɛnərdʒi ɪˈfɪʃənsi//US //ˈɛnərdʒi ɪˈfɪʃənsi//
Definition
Using less energy to perform the same task or produce the same outcome.
In simple words: Using less energy to do the same work.
Examples
- Improving energy efficiency can lead to significant cost savings on utility bills.
- Government initiatives often focus on promoting energy efficiency in buildings and industries.
- By investing in energy efficiency, we can reduce our carbon footprint.
- Many new appliances are designed with energy efficiency in mind.
- Energy efficiency programs are crucial for sustainable development.
Usage notes
Commonly used in discussions about sustainability and conservation. Appropriate in both formal and informal contexts, but may be less familiar to casual speakers.
Grammar pattern
standalone noun phrase
Memory hint
Think of using less energy to keep your home warm like 'efficient energy'.
Collocations
- improve energy efficiency
- energy efficiency standards
- increase energy efficiency
- energy efficiency measures
- energy efficiency rating
Synonyms
- energy conservation
- energy saving
- energy optimization
- energy management
- resource efficiency
Common mistakes
- Confusing with 'energy effectiveness', which has a different meaning.
- Omitting the word 'efficiency' when discussing related concepts.
- Overgeneralizing to imply only renewable energy sources.