855773520-LEED-v5-ID-C-Reference-Guide-Launch-Edition-1 - Page 173
Extracted Content
PATH 2. REGULATED LOADS (1–4 POINTS)
Apply Case 1 or Case 2, up to a maximum of 4 points:
Case 1. Additional Efficiency — Systems Optimization (1–4 points)
Points are awarded according to Table 1. For projects complying with Path 1, reference ASHRAE 90.1-2022 or approved equivalent standard. For other projects registered prior to January 1, 2028, reference ASHRAE 90.1-2019 or approved equivalent standard.
Table 1. Systems optimization
| Col1 | Threshold | Points |
|---|---|---|
| Lighting power. Reduce connected lighting power, including existing fixtures below the lighting power allowance by the specified percentage. | 15% | 1 |
| Lighting power. Reduce connected lighting power, including existing fixtures below the lighting power allowance by the specified percentage. | 30% | 2 |
Cooling, heating, and SWH efficiency. Demonstrate the specified percent improvement in prescriptive efficiencies for at least 75% of the combined cooling, heating, and SWH capacity installed or replaced in the project scope of work. | 15% | 1 |
Fan power. Demonstrate the specified percent improvement in fan power below the prescriptive fan power limitation for systems altered or replaced in the project scope of work. | 20% | 1 |
OR
Case 2. Additional Efficiency Requirements Beyond ASHRAE 90.1-2022 (1–4 points)
Applicable only to projects complying with ASHRAE 90.1-2022, Sections 5–11 that are also defined as “substantial alterations to existing buildings” per ASHRAE 90.1, Section 11.1.4. Points are awarded according to Table 2.
Document achievement of incremental ASHRAE 90.1-2022, Section 11 energy credits, above the minimum required by ASHRAE 90.1-2022, Section 11 from the following list of eligible measures:
Eligible measures from ASHRAE 90.1, Section 11.5.2, for LEED points
-
HVAC measures (H01 to H07)
-
SWH measures (W01 to W09)
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Lighting measures (L01 to L06)
-
G07 Building Mass/Night Flush
Table 2. Points for ASHRAE 90.1-2022, Section 11 credits
| ASHRAE 90.1-2022, Section 11 credits | Points |
|---|---|
Minimum required by 90.1-2022 plus 13 credits | 1 |
| Minimum required by 90.1-2022 plus 25 credits | 2 |
U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 162