Key Objectives and Provisions of a Major Revision to ASHRAE's Existing Buildings Energy Efficiency Standard

Standard 100-2015 includes significant revisions to the 2006 version with the objective of becoming impactful and relevant as a code intended standard. The 2015 version provides greater guidance and a more comprehensive approach to the retrofit of existing buildings for increased energy efficiency.  It sets specific Energy Targets based on performance compared to the 25^th or 40^th percentile of CBECS or RECS data by building type, climate zone, and building occupancy.  It also includes an energy audit path for buildings without energy targets.  This presentation summarizes the objectives and options for compliance with the updated requirements.