Cold Sea Water On Hot Computers

by brian lam

There used to be a paper mill in this old building in Hamina, Finland. Then Google took it over and installed a data center inside. Computers, thousands of them, get very hot. But instead of using expensive air conditioning to keep the computers from melting down, Google decided to use existing tunnels, of granite and connected to the nearby gulf, and the sea water inside to cool the entire data center’s machinery. The water is even stored and mixed with inlet water so that when it is returned to the sea it is closer in temperature to the ambient environment, as to avoid causing any heat-related environmental issues.

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