DOE Issues Preliminary Determination of ANSI/ASHRAE/IES Standard 90.1-2019

On April 16, the U.S. Department of Energy (DOE) announced its preliminary positive determination of energy savings for ANSI/ASHRAE/IES Standard 90.1-2019. Based on the technical analysis provided by DOE’s Pacific Northwest National Laboratory (PNNL), buildings meeting Standard 90.1-2019 (as compared to the previous 2016 edition) would result in national average energy savings of approximately: 

  • 4.7% site energy 
  • 4.3% source energy 
  • 4.3% energy cost 
  • 4.2% carbon emissions 

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