Tracking home energy usage

From the New York Times on Tuesday, March 10, 2009:

Although home energy tracking devices like the single-outlet Kill A Watt or the whole-house Power2Save unit are gaining popularity in this energy-conscious age, I hadn’t tried one out until my electric bill topped out at $150 in January. That prompted me to invest in an Energy Detective, a device that retails for $145 and promises to give homeowners a telling glimpse into their personal energy consumption habits — and the appliances that consume the most juice.

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