Many people are surprised to find out that they are surrounded by vampires when they turn off the lights in their home. They are electronic vampires: devices that continue to consume energy even when they are not in use. Researchers at the Northern Resources Defense Council found that devices in sleep or standby mode account for roughly one-quarter of all residential energy consumption. Therefore, these vampires are not only wasting energy, but also your money. Both traditional and smart power strips supply power to multiple devices using only one electrical outlet. Traditional power strips are meant to protect your devices from electrical surges, but as long as your power strip is on, the devices plugged into it will continue to use energy—even if they are in standby mode.
Do all power strips save energy?
3 Easy Tips to Reduce Your Standby Power Loads | Department of Energy
Power Strips: Their Uses and Hazards
Unplugging some of these devices can be a piece of cake, whereas others can be a bit more of a hassle. So is it worth the trouble? Another benefit of unplugging your appliances is protection from power surges. If you consider the host of small appliances sitting on the typical kitchen counter, the numerous electronics in most entertainment centers and the collection of small chargers it takes to power mobile devices for an entire household, you might count more than 20 plugs before you even get to the major appliances.
Even when you turn off your electronics, they could still be wasting electricity. When you press the off switch, many electronics -- like televisions, DVRs and satellite boxes-- go into standby mode. During standby mode, electronics don't turn off completely.