[scarmig]

A "large portion" of data centers needs to be quantified.

Particularly, newer data centers are much more likely to used closed loop systems. And, the bigger they are, the more likely they're on closed loop.

[quickthrowman]

I’d like to see some evidence of that, adding evaporative cooling towers to a chilled water loop can almost double the COP. I don’t see datacenter operators foregoing much cheaper opex unless they’re in a water-critical area.