A just published ANSI/ASHRAE data center energy standard features a performance-based approach that is more flexible and accommodating of innovations.
ANSI/ASHRAE Standard 90.4-2016, Energy Standard for Data Centers, establishes the minimum energy efficiency requirements of data centers for design and construction, for creation of a plan for operation and maintenance, and for utilization of on-site or off-site renewable energy resources.
“We worked very hard to craft this standard in a manner that does not stifle innovation in the data center industry while simultaneously offering criteria to help ensure energy savings,” said Ron Jarnagin, chair of the 90.4 committee. Standard 90.4 offers the design components for mechanical load (MLC) and electrical loss (ELC). Calculations of the MLC and ELC are made, and then compared to the maximum allowable values shown in the standard based on climate zones.
Compliance with the standard is achieved when the calculated values do not exceed the values contained in the standard. An alternative compliance path is provided that allows tradeoffs between the MLC and ELC.
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