855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 283

Extracted Content

Under Option 1, maximum points are available to projects that fully electrify all building systems. Option 2 selectively rewards electrification per system category for heating, service water heating, cooking, and other process loads and affords flexibility for a hybrid design capable of limiting on-site combustion to low-temperature operation.

For both options, electrified space heating and service water heating equipment must meet efficiency criteria to limit undue burden on the electric power grid. For further guidance, refer to the Weighted Average COP section.

Option 1. No On-site Combustion

Electrification Projects designed to operate entirely without on-site combustion for building energy use or for district energy supplied to the building offer the most significant emission reduction through electrification. Projects pursuing this option must eliminate on-site combustion from the building system design and operations. Refer to the Exemptions section below for limited exceptions.

Efficiency The combined weighted average equipment efficiency for applicable space heating and service water heating equipment must be at least 1.8 COP, per the guidance in the Weighted Average COP section below.

Option 2. No On-site Combustion Except at Low Temperatures

For Option 2, teams may apply any combination of Path 1, Path 2 and Path 3, which separately address electrification of space heating, service hot water heating, and cooking and other process systems, respectively.

PATH 1. SPACE HEATING

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

Design electrified space heating equipment with sufficient capacity to meet the entire project space heating load at the system-, zone- and space-level for outdoor temperatures above 20°F (-6.5 °C) or the project’s design heating temperature. Hybrid designs with fuel/electric equipment must have a sequence of operations with at least one all-electric operating mode above 20°F (-6.5 °C).

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 273