Data-Centers-NC-v4 EA403: Minimum Energy Performance (2024 Update)
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
This prerequisite applies to projects registrations beginning March 1, 2024. Projects registered prior to March 1, 2024 are subject to the original v4 criteriaTo reduce the environmental and economic harms of excessive energy use by achieving a minimum level of energy efficiency for the building and its systems.
Requirements
Option 1. Whole-Building Energy Simulation
Demonstrate the Table 1 minimum energy performance improvement in the proposed building performance rating compared with the baseline building performance rating, calculated according to ANSI/ASHRAE/IESNA Standard 90.1–2010 Appendix G with errata using a metric of energy cost, or source energy, or greenhouse gas emissions (or a USGBC-approved equivalent standard for projects outside the U.S.), using a simulation model.The proposed design must meet the following criteria:
- Compliance with the mandatory provisions of ANSI/ASHRAE/IESNA Standard 90.1–2010, with errata (or a USGBC-approved equivalent standard for projects outside the U.S.);
- Inclusion of all energy consumption and costs within and associated with the building project; and
- Comparison against a baseline building that complies with Standard 90.1–2010, Appendix G, with errata (or a USGBC-approved equivalent standard for projects outside the U.S.).
Document the energy modeling input assumptions for unregulated loads. Unregulated loads should be modeled accurately to reflect the actual expected energy consumption of the building.
If unregulated loads are not identical for both the baseline and the proposed building performance rating, and the simulation program cannot accurately model the savings, follow the exceptional calculation method (ANSI/ASHRAE/IESNA Standard 90.1–2010, G2.5). Alternatively, use the COMNET Modeling Guidelines and Procedures to document measures that reduce unregulated loads.
Table 1. Prerequisite minimum performance improvement beyond ASHRAE 90.1-2010 Appendix G
(Cost, or Source Energy, or GHG Emissions)
| New Construction, Major Renovation, Schools, Warehouses & Distribution Centers, Hospitality | Core and Shell, Data Centers 1 | Healthcare2 |
|---|---|---|
| 10% | 8% | 5% |
Table 1 Notes:
- Projects with unregulated energy exceeding 50% of the total proposed building energy for the referenced metric (cost, source energy, or GHG emissions) or projects with more than 40% restaurant area may use the Core and Shell column in lieu of the New Construction column.
- Core and Shell Healthcare projects may apply the Healthcare thresholds.
- On-site renewable energy may be subtracted from the proposed building performance in accordance with ASHRAE 90.1-2010 Section G2.4. See all forum discussions about this credit »
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Credit language
© Copyright U.S. Green Building Council, Inc. All rights reserved.
Intent
This prerequisite applies to projects registrations beginning March 1, 2024. Projects registered prior to March 1, 2024 are subject to the original v4 criteriaTo reduce the environmental and economic harms of excessive energy use by achieving a minimum level of energy efficiency for the building and its systems.
Requirements
Option 1. Whole-Building Energy Simulation
Demonstrate the Table 1 minimum energy performance improvement in the proposed building performance rating compared with the baseline building performance rating, calculated according to ANSI/ASHRAE/IESNA Standard 90.1–2010 Appendix G with errata using a metric of energy cost, or source energy, or greenhouse gas emissions (or a USGBC-approved equivalent standard for projects outside the U.S.), using a simulation model.The proposed design must meet the following criteria:
- Compliance with the mandatory provisions of ANSI/ASHRAE/IESNA Standard 90.1–2010, with errata (or a USGBC-approved equivalent standard for projects outside the U.S.);
- Inclusion of all energy consumption and costs within and associated with the building project; and
- Comparison against a baseline building that complies with Standard 90.1–2010, Appendix G, with errata (or a USGBC-approved equivalent standard for projects outside the U.S.).
Document the energy modeling input assumptions for unregulated loads. Unregulated loads should be modeled accurately to reflect the actual expected energy consumption of the building.
If unregulated loads are not identical for both the baseline and the proposed building performance rating, and the simulation program cannot accurately model the savings, follow the exceptional calculation method (ANSI/ASHRAE/IESNA Standard 90.1–2010, G2.5). Alternatively, use the COMNET Modeling Guidelines and Procedures to document measures that reduce unregulated loads.
Table 1. Prerequisite minimum performance improvement beyond ASHRAE 90.1-2010 Appendix G
(Cost, or Source Energy, or GHG Emissions)
| New Construction, Major Renovation, Schools, Warehouses & Distribution Centers, Hospitality | Core and Shell, Data Centers 1 | Healthcare2 |
|---|---|---|
| 10% | 8% | 5% |
Table 1 Notes:
- Projects with unregulated energy exceeding 50% of the total proposed building energy for the referenced metric (cost, source energy, or GHG emissions) or projects with more than 40% restaurant area may use the Core and Shell column in lieu of the New Construction column.
- Core and Shell Healthcare projects may apply the Healthcare thresholds.
- On-site renewable energy may be subtracted from the proposed building performance in accordance with ASHRAE 90.1-2010 Section G2.4. See all forum discussions about this credit »