electric power loss
Technical term used in electrical engineering for energy lost as heat or other forms during transmission or conversion.
High voltage is used to reduce electric power loss in transmission lines.
Electric power in general; 電力損失 specifically refers to the loss of that power.
Loss in a broad sense; 電力損失 narrows it to electrical power loss.
Compound of 電力 (electric power) and 損失 (loss).