CI-v5 EAp2: Minimum Energy Efficiency Required

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Intent

To promote resilience and reduce the environmental and economic harms of excessive energy use and GHG emissions by achieving a minimum level of energy efficiency.

Requirements

Projects registered before January 1, 2028 may comply with either Option 1 or Option 2.

Projects registered on or after January 1, 2028 must comply with Option 2.

Option 1. ASHRAE 90.1-2019
Comply with ANSI/ASHRAE/IES Standard 90.1-2019.

For projects applying the Normative Appendix G, “Performance Rating Method,” compliance path, use the following:

• Future source energy metric: The future source energy metric may be used in place of the “cost".
  • Replace all references to “cost” with “future source energy.” Use an electric site-to-source energy conversion factor of 2.0 based on future projections for the U.S. A lower national average value may be used as applicable for projects outside of the U.S.
  • Replace ASHRAE 90.1, Table 4.2.1.1, building performance factors (BPFs), with the BPFs derived for the future source energy metric in Table 1.
• Alterations: For interiors project scope except initial build-out construction, apply the following ASHRAE 90.1-2022 addenda:
  • Substantial alteration: Multiply the BPF by 1.05 if the alterations are defined as a substantial alteration in ASHRAE 90.1-2022, Section G3.1.4(a).
  • Other alterations: Apply ASHRAE 90.1-2022, Section G3.3 (“Performance Calculations for Other Alterations”), replacing all references to ASHRAE 90.1-2022, Sections 5–10, prescriptive criteria with the corresponding ASHRAE 90.1-2019, Sections 5–10 criteria.

Table 1. ASHRAE 90.1-2019 — Equivalent BPFs for a Future Source Energy Metric

OR

Option 2. ASHRAE 90.1-2022
Comply with ANSI/ASHRAE/IES Standard 90.1-2022. Use any applicable compliance path in ASHRAE 90.1, Section 4.2, or an approved equivalent standard for elements within the project scope.

For projects applying the Normative Appendix G, Performance Rating Method compliance path, one of the following metrics may be used in place of “cost”:

• Future source energy
  • Replace all references to cost with “future source energy.” Use an electric site-to-source energy conversion factor of 2.0 based on future projections for the U.S. A lower national average value may be used as applicable for projects outside of the U.S.
  • Replace ASHRAE 90.1, Table 4.2.1.1, BPFs with the BPFs derived for the future source energy metric in Table 2.
• Site energy or source energy documented using ASHRAE 90.1-2022, Informative Appendix I.

Table 2. ASHRAE 90.1-2022—Equivalent BPFs for a Future Source Energy Metric