I Vant to Drink Your Vatts

The Unwasteful Home, By MATTHEW L. WALD
Published: November 17, 2005, Boston Globe

There are billions of vampires in the United States, drawing more than enough current in the typical house to light a 100-watt light bulb 24/7, according to Lawrence Berkeley National Laboratories, a research arm of the Energy Department.

These silent energy users include the chargers for devices that run on batteries, like cellphones, iPods and personal digital assistants, and all the devices around the house that have adapters because they run on direct current, like answering machines. Some have both batteries and steady power use, like cordless phones. Experts call all those adapters "wall warts." Many deliver in direct current only half as much energy as they suck out of the wall; the rest is wasted.


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