Green Building Performance Evaluation: Measured Results from LEED-New Construction Buildings

Report / July 7, 2011

Is LEED delivering actual energy savings? This study addresses that question with a post-occupancy assessment of 121 LEED buildings across the country. Input to the study consisted of energy bills and brief descriptions of actual building use from owners, plus modeled energy usage information from the USGBC’s LEED submittal files. The actual building performance was viewed through several whole-building metrics: energy use intensity (EUI) relative to national averages, Energy Star ratings, and energy use levels relative to the initial ASHRAE 90.1 modeling.Presented at the 2008 ACEEE Summer Study on Energy Efficiency in Buildings.