When it comes to understanding how your electronic devices consume energy and impact your electricity, it is helpful to first understand what plug loads and vampire loads are.
Plug loads refer to the electricity that is used by all the devices in your home that are plugged into a standard wall outlet. This includes everything from larger electronics like televisions and desktop computers to smaller items like phone chargers, routers, coffee makers, and microwaves.
Most homes have dozens of plugged-in devices spread across rooms, many of which are used daily or left plugged in all the time. While each device may use a relatively small amount of electricity on its own, together they represent a significant and often overlooked share of household electricity use.
Vampire loads are a type of plug loads. Vampires loads refer to the electricity consumed by devices while they are switched off, in standby mode, or plugged in but not actively in use.
Some vampire loads are easy to spot. For example, a television or cable box may show a small red light when it is “off,” indicating that it is still drawing power. Similarly, a microwave continues to use electricity to display the time even when it is not heating food.
Other vampire loads are less visible. Chargers left plugged into the wall without a device attached still draw power, even though there is no clear sign that energy is being used.
Because vampire loads operate continuously, they use energy around the clock. The amount of power each device draws is typically small, but the constant usage adds up over time.