Energy Standard for Data Centers 90.4

ASHRAE SSPC 90.4 will publish an updated version of Standard 90.4, Energy Standard for Data Centers, this year as ANSI/ASHRAE Standard 90.4-2022, which will be incorporated into Standard 90.1 as an Alternate Compliance Path. This article gives an overview of what the purposes of Standard 90.4, its history and how it can be effectively used when designing and building data centers.