1.08-as PUE a Yahoo uj datacenterében

Taking a cue from the efficient cooling of chicken coops, the company has modeled their latest data center after just such a structure.

Opening up in Lockport, N.Y., Yahoo's new data center can hold 50,000 servers, yet uses 40% less energy than typical data centers. It also has a power usage effectiveness (PUE) rating of 1.08. That's a big deal -- the industry average is just shy of 2
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The coop design makes it easier to circulate outdoor air inside, using what's called "free cooling." Any winds that bring a chilly breeze will easily make its way into the building, in the same way farmers use the design to keep a steady circulation of fresh air going for a building housing thousands of chickens.