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LEED has taken some heat for buildings that do not perform as they were modeled, yet energy modeling is an essential tool for any high-performance building project.
Recently, LEED has come under fire for accounts of certified buildings not performing as well as their energy models predicted. Frequently mentioned amongst the antagonistic “gotcha” coverage is an out-of-context 2007 quote by the USGBC Research Committee acknowledging: “Buildings have a poor track record of performing as predicted during design.”
Within context, the research committee clarifies the reasons for the frequency of underperforming energy models, citing “inaccurate or improperly used analysis tools, lack of integration of complex interconnected systems, value engineering after design, poor construction practices, no building commissioning, and incomplete or improper understanding of operations and maintenance practices.” Not nearly an exhaustive list, but all legitimate considerations.
Originally published in the August 2014 issue of Environmental Design + Construction (EDC) magazine.