ASHRAE guidelines and standards open for comment
The below draft is open for a 45-day public review
BSR/ASHRAE/IES Addendum b to ANSI/ASHRAE/IES Standard 100, Energy and Emissions Building Performance Standard for Existing Buildings (first public review). Public review closes Aug. 31.
Standard 100-2024 includes energy use intensity (EUI) targets for site energy and source energy, and has added green house gas intensity (GHGI) targets. It also changed the basis for calculating site energy use. To simplify the standard, which currently allows a building to comply via site or source EUI targets, the committee decided to move all source EUI targets to an informative appendix. This addendum will have no effect on a building that does not have EUI or GHGI targets. The vast majority of this addendum is the deletion of all references to source energy throughout the existing standard.
Visit the ASHRAE portal to make comments on the above addenda.
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