Nov. 29, 2011: DOE Updates National Reference Standard for Commercial Buildings to ASHRAE 90.1-2010
ATLANTA — Following its analysis that the American Society of Heating, Refrigerating and Air-Conditioning Engineers’ (ASHRAE’s) 2010 energy efficiency standard contains significant energy savings over the 2007 standard — 18.2 percent source energy savings and 18.5 site energy savings — the U.S. Department of Energy (DOE) has issued a ruling that establishes the 2010 standard as the commercial building reference standard for state building energy codes.
DOE attributes the greater energy savings to improvements in ANSI/ASHRAE/IESNA Standard 90.1-2010, Energy Standard for Buildings Except Low-Rise Residential Buildings, related to better lighting, daylighting, controls and building envelope and better mechanical systems and application to more systems.