you have several devices that each use standby power.
Their consumption can add up over time, particularly if they’re connected around the clock.
However, don’t assume that every plugged-in appliance is wasting a significant amount of electricity. Many modern products are designed to use very little power when idle.
For a more accurate estimate, use an electricity monitor to measure the consumption of individual devices.
How to Calculate Your Potential Savings
You can estimate standby electricity use with this simple formula:
Annual energy use (kWh) = standby watts × 8,760 ÷ 1,000
To estimate the cost:
Annual cost = annual energy use × your electricity price per kWh
For example, if a device uses 2 watts continuously:
2 × 8,760 ÷ 1,000 = 17.52 kWh per year.
At $0.20 per kWh, that equals approximately $3.50 per year.
If you unplug several similar devices, their potential savings may add up. But remember
