Data centers are the backbone of the modern digital economy. They power everything from cloud computing and artificial intelligence to daily internet traffic. However, this digital infrastructure requires massive amounts of electricity. To address this intense energy use, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) developed Standard 90.4.
Released in 2016 and updated significantly since (latest version 2022), ASHRAE 90.4 was the first standard written specifically for data center energy efficiency. It is now referenced in the IECC (International Energy Conservation Code) and many local building codes.
Locate the project site on the ASHRAE climate map. ashrae 90.4 pdf
When he opened it, his heart sank. It was a scanned, low-resolution copy of the 2016 edition. The text was blurry, and the crucial tables regarding the Mechanical Load Factor (MLF) were illegible gray smudges.
Designing to ASHRAE 90.4 ensures your facility is ready to meet increasingly strict municipal and federal energy regulations that are being adopted worldwide. The Path Forward for Data Centers Data centers are the backbone of the modern digital economy
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An alternative compliance path permits trade-offs between the MLC and ELC. For instance, a facility utilizing an ultra-efficient mechanical cooling setup can compensate for a slightly lower-performing electrical topology, provided the cumulative performance meets the target threshold. Read-Only Versions of ASHRAE Standards To address this intense energy use, the American
is a performance-based design standard established to create minimum energy efficiency requirements for data centers. Unlike the prescriptive Standard 90.1, Standard 90.4 is tailored to the unique, mission-critical load requirements of data center environments. Purpose and Scope Establish Efficiency
ASHRAE 90.4 is mainly used as a design standard applied when submitting approval plans before constructing a data center facility. ASHRAE 90.4 Energy Standard for Data Centers
The standard includes several appendices to aid compliance, such as a (Appendix B), diagrams to illustrate compliance (Appendix C), and sample calculations.
ASHRAE 90.4 sets out several requirements for data center design and operations, including: