Swedish data center saves $1 million a year using seawater for cooling

Collocation provider Interxion uses water pumped from the Baltic Sea to cool its data centers

By , IDG News Service |  Data Center

Over the life of the project, Interxion has lowered its Power Usage Effectiveness ratio, a measure of how efficiently energy is used, from 1.95 to 1.09, which is an enviably low score.

Since Interxion relies on a third party for its seawater, it can't guarantee the supply will never be shut off. It therefore has chillers on site so that it can guarantee reliability levels to its hosting clients.

But it had to run the chillers only a few hours last year, Coors said, when the government ordered its partner to stop pumping seawater. Coors isn't certain why that was, but he believes it's for environmental reasons. "I think it's to protect the jellyfish," he said.

He'd like to use water from other rivers and lakes around Europe, but some regions are skittish about potential environmental impacts.

"London would be excellent if we could get access to the Thames, but they're kind of scared," he said.

James Niccolai covers data centers and general technology news for IDG News Service. Follow James on Twitter at @jniccolai. James's e-mail address is james_niccolai@idg.com

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