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About This Item

 

Full Description

ASHRAE/IES Standard 100 provides criteria for reduced energy consumption through improved energy efficiency and performance in existing buildings.

Among changes to the 2018 edition of the standard are the following:

  • Updated Purpose to more clearly state the goal of the standard.
  • Addition of normative primary energy EUI target tables in Sections 7 and 10 and in Normative Annex A, and a primary energy EUI calculation option in Annex A, to add an alternative compliance path for the qualified person seeking compliance with the standard
  • Clarification of energy audit requirements for buildings without energy targets by qualifying when a Level 1 audit can be used to comply with the standard
  • Addition of new Informative Annex M to provide guidance on selecting the appropriate building type
 

Document History

  1. ASHRAE 100-2018

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    Standard 100-2018 -- Energy Efficiency in Existing Buildings (ANSI Approved/IES Co-sponsored)

    • Most Recent
  2. ASHRAE 100-2015


    Standard 100-2015 -- Energy Efficiency in Existing Buildings (ANSI Approved/IES Co-sponsored)

    • Historical Version
  3. ASHRAE 100-2006


    Standard 100-2006 -- Energy Conservation in Existing Buildings (ANSI/IES Approved)

    • Historical Version
  4. ASHRAE 100-1995


    Standard 100-1995 -- Energy Conservation in Existing Buildings (ANSI Approved/IESNA cosponsored)

    • Historical Version