noun
active solar
Refers to active solar energy systems that use mechanical or electrical equipment, such as pumps and fans, to collect and distribute solar energy. Contrasts with passive solar design.
アクティブソーラーシステムは、太陽熱を集めて温水を作るのにポンプを使う。
Active solar systems use pumps to collect solar heat and produce hot water.
Variant with interpunct; less common in running text.
Passive solar design relies on building orientation and materials without mechanical systems, while active solar uses equipment like pumps and fans.
Loanword from English 'active solar'.