[bozhark]

How inefficient

[cl0ckt0wer]

Way more efficient, that's why they do it. Evaporating water carries an enormous amount of energy.

[quickthrowman]

It uses almost half as much electricity, it’s way more efficient than air cooled chillers by themselves.

East of the 100 degree W line of longitude, there is more than enough water to use evaporative cooling if needed.