noun, noun-modifying (irregular)
energy saving; energy saver
Loanword used in technical or product contexts, often as a noun modifier (e.g., エナジーセーブモード).
See also: エナジーセーブモード
This air conditioner has an energy-saving feature.
Switching to energy-save mode reduces power consumption.
Variant with interpunct; less common in running text.
Loanword from English 'energy save'.