エネルギー効こう率りつ

noun

energy efficiency

Technical and everyday term for how effectively energy is used, often in contexts like appliances, buildings, and industrial processes.

• この冷れい蔵ぞう庫こはエネルギー効こう率りつがとても高たかい。

  This refrigerator has very high energy efficiency.

• 政せい府ふはエネルギー効こう率りつの改かい善ぜんを推すい進しんしている。

  The government is promoting improvements in energy efficiency.