The newly revised ANSI/ASHRAE/IES Standard 100-2015, Energy Efficiency in Existing Buildings, has been published. The standard provides comprehensive descriptions of the processes and procedures for the retrofit of existing residential and commercial buildings in order to achieve greater measured energy efficiency. It addresses buildings’ energy-use efficiency in a quantitative manner and provides a means to improve that efficiency with an objective benchmark created with the assistance of the Energy Information Administration, the Federal Energy Management Program and Oak Ridge National Laboratory. The revision of the standard, last published in 2006, also brings it in line with other published ASHRAE documents, specifically Standard 90.1-2013, Standard 90.2-2007 and ANSI/ASHRAE Standard 105-2014, Standard Methods of Determining, Expressing and Comparing Building Energy Performance and Greenhouse Gas Emissions. (Source: The HVAC&R Industry, February 26, 2015)
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