省电 means 'to save electricity' — a common compound verb in modern Chinese. It combines 省 (shěng), meaning 'to save' or 'to conserve', and 电 (diàn), meaning 'electricity'. Together, they express the intentional act of reducing electrical power consumption, often for economic, environmental, or practical reasons. This term is frequently used in everyday contexts like household energy management, appliance instructions, and public awareness campaigns.

The word functions as a transitive verb and commonly appears with modal verbs (e.g., 可以省电, 应该省电), aspect markers (e.g., 正在省电, 已经省电), or as a complement (e.g., 让灯更省电). It’s neutral in register — appropriate in both spoken and written language — and widely understood across age groups. While it literally refers to electricity, it’s rarely used metaphorically; its meaning stays concrete and functional.