Energy efficiency in buildings has an impact on the evaluated market values. According to a study of the US department of Energy (DOE), commercial buildings waste 30% of the energy paid for on average. This wasted energy was estimated at around 61 billion dollars for 2007. Based on a capitalization rate of 8%, the lost asset value amounts to approximately $750 billion.

Buildings with a certification of high energy efficiency generate a rent about 7 percent higher than otherwise identical buildings and realize an increase of selling prices by 16 percent.

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