On March 2, ASHRAE received a final determination from the U.S. Department of Energy’s Building Energy Codes Program saying that ANSI/ASHRAE/IES Standard 90.1-2016 would achieve greater energy efficiency in commercial buildings subject to code.
This determination was given because of DOE analysis indicating building meetings 90.1-2016 (compared to the previous 2013 edition) would result in national energy cost savings of about 8.2%, as regulated by the model code. The DOE also estimates 90.1 would provide 7.9% source energy savings and 6.8% site energy savings.