ASHRAE Standard 90.4-2025 (ANSI/ASHRAE Standard 90.4-2025) is an energy standard that establishes the minimum energy-efficiency requirements for the design, construction, operation, and maintenance of data centers. It serves as a performance-based design standard, providing a specific framework for energy compliance that addresses the unique, mission-critical energy demands of data centers, which consume a significant amount of electricity.
PurposeCompliance with ASHRAE 90.4 is primarily demonstrated through a performance-based methodology using two metrics:
To use the standard:
The ASHRAE 90.4 standard is used by various professionals and entities involved in the design, construction, operation, and regulation of data centers.
Typical users include:
| SDO | ASHRAE: American Society of Heating, Refrigerating, and Air Conditioning Engineers |
| Document Number | Standard 90 |
| Publication Date | Jan. 1, 2025 |
| Language | en - English |
| Page Count | 56 |
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