[floatinglotus]

Most of the new providers are putting them in liquid cooling to cut down on electric.

[Eisenstein]

Why would liquid cooling cut down on electricity cost? The only difference is fan power vs pump power -- is it really much different?

[coolspot]

It is much easier to transfer X amount of heat with a liquid than with air. Liquid travels in pipes and has enormous mass heat capacity (Per unit of volume, water has about 3200 times the specific heat capacity of dry air (at 77°F)). Air needs wide straight ducts and fans every 10 meters to keep air flowing.

[frankreyes]

If I had to guess the difference is made in building cooling, not per device.