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855773520-LEED-v5-ID-C-Reference-Guide-Launch-Edition-1 - Page 200

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  • For projects referencing the ASHRAE 90.1 ECB method, begin with the site energy consumption for the proposed design without any credit for the on-site renewable energy contribution.

For projects that have shared HVAC or SWH systems (including district energy distributed from the base building plant), use submeters in the energy model or post-processing to exclude the energy from these shared systems in the determination of tenant annual site energy.

PRESCRIPTIVE PATH

Projects using the prescriptive method to show compliance with EAp2: Minimum Energy Efficiency must rely on estimations from EAp1: Estimated Energy Use and Operational Carbon Projection to determine tenant annual site energy for renewable energy credit calculations. Break down the site energy into electric, fuel, and district energy consumption.

For projects that have shared HVAC or SWH systems, provide additional estimations to support exclusion of the shared system energy use from the estimated tenant annual site energy.

Renewable energy classifications TIER 1. ON-SITE RENEWABLE ENERGY GENERATION OR SOCIAL IMPACT PROJECT

On-site renewable energy generation when strategically integrated with grid-interactive strategies can increase project resilience and support effective grid management. To qualify as a Tier 1 renewable system, the renewable energy must be produced and generated on the project site, on the site of the contiguous campus where the project is located, or on the site of a social impact project.

Eligible Tier 1 Renewable Resource Types

Eligible Tier 1 renewable energy resources include:

  • Solar electric (PV)

  • Solar thermal (i.e., for SWH or hot water heating)

  • Wind

  • Recovered heat from municipal wastewater

Only usable energy generated from the renewable system shall be considered toward the Tier 1 renewable energy contribution. Usable energy is defined as the output energy from the system less any transmission and conversion losses, such as standby heat loss, losses when converting electricity from DC to AC, or waste heat that is exhausted to the atmosphere. Excess energy, beyond the project’s energy demand at a given point, can be sold to the utility company

U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 189

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