Which practice most directly reduces standby energy consumption?

Which practice most directly reduces standby energy consumption?

• A. Run equipment in standby mode
• B. Keep lights on in unused rooms
• C. Unplug equipment at night
• D. Keep all devices plugged in and ready

Answer: (C)

Standby energy consumption is the small amount of power devices use when they’re plugged in but not actively in use. Unplugging equipment at night directly removes that idle draw, so no standby power is consumed while you’re away or asleep. Running devices in standby mode still uses energy, so it doesn’t eliminate the draw. Keeping lights on in unused rooms wastes energy, and leaving all devices plugged in and ready keeps standby power flowing. If you want an easy practical approach, use a power strip and switch it off at night to cut off standby power for multiple devices at once.

Standby energy consumption is the small amount of power devices use when they’re plugged in but not actively in use. Unplugging equipment at night directly removes that idle draw, so no standby power is consumed while you’re away or asleep.

Running devices in standby mode still uses energy, so it doesn’t eliminate the draw. Keeping lights on in unused rooms wastes energy, and leaving all devices plugged in and ready keeps standby power flowing. If you want an easy practical approach, use a power strip and switch it off at night to cut off standby power for multiple devices at once.