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Additional considerations: Geoexchange systems ineligible Geoexchange systems such as geothermal heat pumps that use vapor compression cycles are not considered a renewable energy resource. These systems are credited in EAc3: Enhanced Energy Efficiency.

Eligible Tier 3 Renewable Fuel Resource Types

For any fuel used on the project site or for district heating, the project may procure renewable fuel that is Green-e® certified or equivalent. The Green-e® renewable fuels standard certifies biomethane—also called renewable natural gas (RNG) — that meets specific production facility and feedstock criteria and is purified to meet gas pipeline specifications.

Annual Site Energy Determination (For Tier 1, Tier 2, and Tier 3 Percent of Annual Site Energy)

For New Construction, annual site energy refers to the total building annual site energy use including electricity, on-site fuel use, and district thermal energy. This includes all regulated and unregulated energy use.

Exclusion of energy for electric vehicle charging Exclude energy for electric vehicle charging of vehicles used for off-site transportation purposes if this electric vehicle supply equipment (EVSE) is separately metered from the main building energy use.

Renewable energy procurement may be contractually linked to a percentage of monthly metered data for each project energy source, summing together to the renewable percent of annual site energy claimed for the project, or annual site energy may be estimated for the project.

ANNUAL SITE ENERGY ESTIMATION: ENERGY SIMULATION Projects using energy modeling to demonstrate compliance with EAp2: Minimum Energy Efficiency must use the proposed building performance before accounting for renewable energy credit as the basis for annual site energy.

o For projects referencing the ASHRAE 90.1, Appendix G Performance Rating Method

(PRM), use the site energy consumption for the proposed building performance (PBP) without any credit for the on-site renewable energy contribution.

o For projects referencing the ASHRAE 90.1, Energy Cost Budget Method (ECB), use

the site energy consumption for the proposed design without any credit for the onsite renewable energy contribution.

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 343