Credits
This 2005 study found that median commissioning costs are $0.27/ft2 (in 2003 dollars), with an inter-quartile range of $0.13 to $0.45. Median whole building energy savings were 15% (with a range of 7% to 29%), and median payback time was 0.7 years (0.2 years to 1.7 years).
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