DOE Updates National Reference Standard for Commercial Buildings to 90.1-2010
After determining buildings built to the 2010 version of ANSI/ASHRAE/IESNA Standard 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings, consume significantly less energy—18.2 percent source and 18.5 percent site—than buildings built to the 2007 version, the U.S. Department of Energy (DOE) issued a ruling making the 2010 version the commercial-building reference standard for state building energy codes.