noun, noun which may take the genitive case particle 'no'
energy conservation; energy saving
Refers to reducing energy consumption, often in policy, technology, or daily life. Can be used as a noun or as a no-adjective modifying another noun.
省エネルギー対策を進める必要がある。
We need to promote energy conservation measures.
このエアコンは省エネルギー性能が高い。
This air conditioner has high energy-saving performance.