855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 293
Extracted Content
| Heating equipment type | Heating equipment efficiency rating | Equation to convert to COP | Test procedure |
|---|---|---|---|
| Electric service hot water heaters | COP 50°F (10°C) entering air and 60°F (21°C) entering water | = COP | AHRI Standard 1301 |
| Electric service hot water heaters | UEF | = UEF x 1.3 | 10 CFR 430 Appendix E |
NOTE: Equations to convert HSPF, HSPF2, and SCOP2 to COP are from ASHRAE 90.1-2019 11.5.2(c) and 90.1-2022 12.5.2(c). The remaining conversions are rough approximations not accounting for variability in standby losses or other factors referenced in the test procedures.
District Energy Systems (Applicable for New Construction and Core and Shell)
If the project has thermal energy from a District Energy System (DES), either refer to DES compliance paths in the Project Priorities Library or demonstrate that the DES complies with the following credit requirements at the district facility:
- New Construction Option 1, No On-site Combustion . (Core and Shell Option 1, Path
o No on-site combustion may be used in the district energy facility to generate heating,
cooling, or electricity supplied to the project. Average district heating efficiency must be at least 1.8 COP.
- New Construction Option 2, No On-Site Combustion Except at Low Temperatures . (Core and Shell Option 1, Path 1)
o If district heating supplies any of the project’s space heat (New Construction Path 1
or Core and Shell Case 1), service water heating (New Construction Path 2 or Core and Shell Case 2), or process energy (New Construction Path 3), the district heating facility must be capable of generating the entire required district heating capacity without using on-site combustion above 20°F (-6.5 °C). Average district heating efficiency must be at least 1.8 COP for New Construction Paths 1 and 2 (Core and Shell Cases 1 and 2).
Fuel Cells and Combined Heat and Power Ineligible
Projects with fuel cells that use fossil fuel to generate electricity or combined heat and power systems (CHP) that use fuel to generate heat and electricity are ineligible for credit.
Exemptions (Applicable for New Construction and Core and Shell) On-site combustion may be used for the following limited circumstances:
U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 283