855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 284

Extracted Content

Credit achievement is automatic for projects that neither install space heating equipment in the project scope nor require space heating for occupant thermal comfort.

Efficiency Projects in climate zones 3 and above must design space heating to achieve a weighted average equipment efficiency of at least 1.8 COP. Refer to the Weighted Average COP section for calculations and exclusions from COP determination.

PATH 2. SERVICE WATER HEATING

Electrification All service water heating must operate without on-site combustion, except in low-temperature operating mode at or below 20°F (-6.5 °C).

Service water heating supplies hot water for purposes other than space heating and process applications. It is primarily for handwashing, showering, and cleaning.

Design electrified service water heating equipment with sufficient capacity and distribution capability to provide all necessary service water heating at outdoor temperatures above 20°F (6.5 °C) or the project’s design heating temperature.

Path 2 is unavailable to projects without service water heating.

Efficiency If the total project service water heating capacity exceeds 34,000 Btu/h (10 kW), design the service water heating system with efficient heat pump technology to achieve a weighted average service water heating equipment efficiency of at least 1.8 COP or generate at least 40% of the building’s total service water heating load with solar thermal energy.

Point-of-use service water heating equipment in non-residential spaces may be excluded from the weighted average COP determination if it meets ASHRAE 90.1-2022 Section 11.5.2.3.3, W05, without exceptions.

Refer to the Weighted Average COP section for calculations and exclusions from COP determination.

PATH 3. COOKING AND OTHER PROCESS LOADS

Electrification This path encourages design teams to eliminate on-site combustion from cooking, laundry, pool or spa heating, power generation, and all other process applications.

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 274