Mission critical data center operations typically require significant amounts of water and energy for cooling, and hyperscale server rack power density is expected to double as soon as 2023.

It’s a common question during the early design phase of large mechanical systems: “Is open-loop or closed-loop cooling equipment better suited for this project?”

As water becomes increasingly scarce, more attention will continue to be aimed at developing less-water intensive cooling alternatives for data centers.

While the PUE metric clearly defines the measurement process for facility efficiency (thanks to The Green Grid!), it represents only a portion of sustainability in the overall data center eco-structure.