06 Jan '12, 3pm

Energy Efficiency: Cheapest Power Around, but Getting More Expensive

Energy Efficiency: Cheapest Power Around, but Getting More Expensive

Two things you should know about energy efficiency: it’s still the cheapest “fuel” around, but it’s getting more expensive, according to a new report from the Edison Foundation’s Institute for Electric Efficiency (PDF ). In 2010, utilities spent $4.8 billion on ratepayer-funded energy efficiency programs, and as a result saved about 112 terawatt-hours of electricity, enough to power nearly 10 million homes, the report finds. (That’s about 2.5 percent of the 4,000 terawatt-hours of electricity the U.S. consumed in 2009, according to the Energy Information Administration.) That adds up to a cost of about 3.5 cents per kWh, as cheap or cheaper than almost every source of power generation out there, including natural gas and coal. But that cost has also gone up in the past few years, according to Lisa Wood, IEE’s executive director. In other words, changing light bulbs, fixing...

Full article: http://www.greentechmedia.com/articles/read/energy-effici...

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