855773520-LEED-v5-ID-C-Reference-Guide-Launch-Edition-1 - Page 113
Extracted Content
Energy and Atmosphere Prerequisite
MINIMUM ENERGY EFFICIENCY
EAp2
REQUIRED
INTENT
To promote resilience and reduce the environmental and economic harms of excessive energy use and GHG emissions by achieving a minimum level of energy efficiency.
REQUIREMENTS
| Achievement pathways | Points |
|---|---|
Commercial Interiors | N/A |
Option 1.ASHRAE 90.1-2019 | |
OR | OR |
Option 2.ASHRAE 90.1-2022 | Option 2.ASHRAE 90.1-2022 |
Projects registering before January 1, 2028, may comply with either Option 1 or Option 2.
Projects registering on or after January 1, 2028, must comply with Option 2.
Option 1. ASHRAE 90.1-2019
Comply with ANSI/ASHRAE/IES Standard 90.1-2019 .
For projects applying the Normative Appendix G, “Performance Rating Method,” compliance path, use the following:
- Future source energy metric : The future source energy metric may be used in place of the “cost”.
o Replace all references to “cost” with “future source energy.” Use an electric site
to-source energy conversion factor of 2.0 based on future projections for the U.S. A lower national average value may be used as applicable for projects outside of the U.S.
o Replace ASHRAE 90.1, Table 4.2.1.1, building performance factors (BPFs), with
the BPFs derived for the future source energy metric in Table 1.
- Alterations : For interiors project scope except initial build-out construction, apply the following ASHRAE 90.1-2022 addenda.
o Substantial alteration: Multiply the BPF by 1.05 if the alterations are defined as a
substantial alteration in ASHRAE 90.1-2022, Section G3.1.4(a).
U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 102