855773520-LEED-v5-ID-C-Reference-Guide-Launch-Edition-1 - Page 179

Extracted Content

EAp2: Minimum Energy Efficiency	Linked EAc2: Enhanced Energy Efficiency (choose Option 1 OR Option 2)	Available points
	Implement incremental efficiency measures for HVAC, SWH, lighting, and/or building mass with night flush per_ASHRAE_ 90.1-2022, Section 11. AND/OR
	Path 3. Plug and process loads	1–5
	AND/OR	+
	Path 4. Base building energy efficiency	2
Option 1 or Option 2. 90.1-2019 or 90.1- 2022 ECB Method	Option 1. Prescriptive Path	1–7
Option 1 or Option 2. 90.1-2019 or 90.1- 2022 ECB Method	Path 3. Plug and process loads	1–5
Option 1 or Option 2. 90.1-2019 or 90.1- 2022 ECB Method	AND/OR	+
Option 1 or Option 2. 90.1-2019 or 90.1- 2022 ECB Method	Path 4. Base building energy efficiency	2
Option 1 or Option 2. 90.1-2019 or 90.1- 2022 Appendix G — PRM	Option 2. Energy Simulation Implement efficiency measures to achieve a percentage reduction in “future source energy” below a performance Index Target (PIt). Initial build-out or substantial alteration. PIt referenced to_90.1- 2019 equivalent performance. Other alterations. PIt referenced to_ASHRAE 90.1 prescriptive requirements from referenced version of ASHRAE.	1–12

Option 1. Prescriptive Path

Option 1 offers a streamlined approach to achieving energy efficiency without requiring complex energy modeling. Teams can combine paths under Option 1 to achieve up to 12 points for the credit. This option is particularly beneficial for projects with limited scope, or simple systems, or that or located in inefficient base buildings that detract from overall project performance documented using energy simulation.

The first three paths focus solely on efficiency implemented in the project scope. Path 1 rewards prescriptive method compliance with ASHRAE 90.1-2022 . Paths 2 and 3 reward improved efficiency for regulated loads and for plug and process loads respectively, with points weighted based on the typical distribution of regulated versus plug and process loads addressed in Interiors projects.

Path 4 recognizes energy efficiency in the base building.

PATH 1. ASHRAE 90.1-2022 COMPLIANCE FOR PROJECT SCOPE

Projects earn three points for complying with EAp2: Minimum Energy Efficiency, Option 2 . ASHRAE 90.1-2022 using the prescriptive method, regardless of whether project registration occurs after ASHRAE 90.1-2022 becomes obligatory January 1, 2028.

U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 168