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GREEN BUILDING SERVICES | MARCH 2008 IN THIS ISSUE   (MAR. 2008)
NBI Releases LEED Energy Performance Study

March 2008

New Buildings Insitute (NBI) has just released the broadest study to-date of measured energy performance of LEED buildings. The study gathered whole building energy data from 121 LEED NC buildings across the country that had been occupied for at least one year.

On average, LEED buildings are delivering the anticipated savings, performing 25-30% better than national average or modeled baselines. Individual building results, however, display a high degree of scatter, with some performing much better than average and some much worse. These and other results from this exploratory study suggest several opportunities for improved feedback tools, follow-up research on actual performance factors, improved modeling guidelines, and LEED program refinements.

Download the full report


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