40% of all electricity is used by turned off devices
 

The Department of Energy estimates that in the average home, 40 percent of all electricity used to power home electronics is consumed while the products are turned off. Add that all up, and it equals the annual output of 17 power plants, the government says.

I started checking how much electricity my electronics were consuming when I wasn't using them. I used a Kill A Watt EZ energy meter (available online for about $25) and began measuring. My PC was continuously drawing 134 watts all night.

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New Source: New York Times

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