DOE updates reference standard for commercial buildings to 90.1-2013
Following preliminary analysis that ASHRAE/IES’s 2013 energy efficiency standard contains energy savings over the 2010 standard, the DOE has issued a ruling establishing the 2013 standard as the commercial building reference standard for state building energy codes.
In an announcement in the Sept. 26, 2014 edition of The Federal Register, the DOE attributes the greater energy savings to improvements in ANSI/ASHRAE/IES Standard 90.1-2013, Energy Standard for Buildings Except Low-Rise Residential Buildings, related to several areas, including better lighting, fans, commercial refrigeration, and boilers.