No, “Vampire Power!” is not a rallying cry created by Twi-hards camping out at premier of the new Twilight movie. It’s not even a blood-red energy drink. But if you use electricity at home, vampire power is a phenomenon lurking in your household at this very minute.

According to energy expert, Eric Masanet, staff scientist at Lawrence Berkeley National Laboratory and associate professor of engineering at Northwestern University, vampire power is electricity loss by appliances in your house when they’re not being actively used. For our regular EcoMyths/Worldview segment, Jerome and I talked with Eric as he shared his passion for understanding energy demand and ways to reduce it.

Handy and efficient = the trusty powerstrip. (Pic via WBEZ/AP-Richard Drew)
Handy and efficient = the trusty powerstrip. (Pic via WBEZ/AP-Richard Drew)

At Northwestern, Eric teaches about energy and resource efficiency. He devotes his work to finding solutions to wasted energy. He explained a big source of energy waste is vampire power, also known as standby power, phantom load or plug load. Your household appliances that consume power when not in use include; your microwave oven, DVD, coffee maker, laptops, printers, televisions, and especially digital cable and satellite boxes. When turned off, many of these items remain in standby, ready for instant activation. Others continue to use power for their clocks (internal and external) or other displays. Actually, these items are never really “off” unless you unplug them. An average household has 40 appliances that use standby power when turned off. They unnecessarily consume up to 10 percent of total power used in your house! But also, energy lost through standby power accounts for 1 percent of all greenhouse gases in the atmosphere.

Other than unplugging offending vampire appliances from the socket, Eric suggests two practical ways to reduce standby loss. One is a power strip, a very simple solution for your home computer and related equipment. When you turn off your computer, if you also turn off the power strip, the whole suite of equipment will be fully off. Another solution is more long-term: Buy Energy Star appliances. These ideas are pretty compelling to me. No one likes to pay an electricity bill, or any bill, for something they don’t actually use. So I’m thinking of creating a vampire power rallying cry of my own: “Save energy, save money, save our atmosphere!”

See how we bust the vampire power myth here. Lawrence Berkeley National Laboratory has more info on standby power.

—As part of the Worldview/EcoMyths partnership, this blog also appears on the Chicago Public Radio page.

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