Indirect evaporative systems average around COP 17.5 and dew-point systems can hit ~30, so your numbers check out for the best cases. Worth noting that direct l

Indirect evaporative systems average around COP 17.5 and dew-point systems can hit ~30, so your numbers check out for the best cases. Worth noting that direct liquid cooling with dry heat rejection is now achieving PUE 1.03-1.06 with near-zero water, which narrows the effective gap considerably for the high-density AI racks that are driving most new builds.