Saving electricity; reducing electrical usage to avoid waste, often as energy-saving or power-shortage measures.
夏の暑さ対策で節電のために照明を一部消した。
To save electricity during the summer heat, we turned off some lights.
節電を呼びかけるキャンペーンに参加した。
I participated in a campaign promoting electricity saving.
エアコンの温度を１度上げて節電することにした。
We decided to raise the air-conditioner temperature by one degree to save power.