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855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 326

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However, per ASHRAE 90.1-2022 11.5.2, the combined contribution of renewable and load management measures is limited to 60% of the total required energy credits.

Incremental energy credits For additional LEED points, projects must achieve incremental energy credits above the minimum required for prescriptive method compliance. These incremental energy credits must be from the list of eligible HVAC, lighting, service water heating, or building mass/night flush measures rather than the full list of measures from ASHRAE 90.1-2022, Section 11.5.2.

To assess achievement of incremental energy credits (ECinc):

  • Identify the minimum energy credits required by ASHRAE 90.1-2022, Section 11 (ECreq).

  • Determine the total combined energy credits achieved using AHRAE 90.1-2022, Section 11 from eligible measures and from non-eligible measures (ECtotal).

  • Determine the total combined energy credits achieved from the list of eligible measures. (ECeligible).

  • The quantity of incremental energy credits achieved is equal to the lesser of the energy credits from eligible measures, or the total combined energy credits minus the energy credits required by ASHRAE 90.1-2022, Section 11 .

ECinc = Minimum (ECeligible, ECtotal – ECreq)

Points are awarded dependent on project scope:

  • New Construction . Earn one point for each 25 incremental ASHRAE 90.1-2022, Section 11 energy credits documented for eligible measures, up to a maximum of three additional points.

  • Core and Shell projects with central systems . Earn one point for each 13 incremental ASHRAE 90.1-2022, Section 11 energy credits documented for eligible measures, up to a maximum of four additional points. Central systems refer to LEED BD+C: Core and Shell scope of work that includes central boilers, chillers, service water heating equipment, or loop pumping systems with heat rejection such as water- or groundsource heat pump loops.

  • Core and Shell projects without central systems . Earn one point for each nine incremental ASHRAE 90.1-2022, Section 11 energy credits documented for eligible measures, up to a maximum of 4 additional points.

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 316

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