Energy consumption is a primary contributor to global warming. At the end of 2012, 40 percent of energy consumption in the US came from commercial and residential buildings.

Energy hits household wallets, too. The average US household spends more than $2,000 per year on it. But we are making progress in our home energy management.

Last year, Parks Associates projected that 60 percent of US homes will have some kind of energy management in place by 2020, with households saving up to 20 percent on energy bills. Yet Neil Strother, an analyst at Pike Research, told The New York Times that less than 1 percent of American households had a home energy monitoring system at the end of 2011.

From the article, "Taking a Dim View of Home Energy Management Tech" by Mary E. Shacklett.

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