In pictures: The world's coolest, greenest datacentres

Datacentres are taking advantage of energy saving technologies to run more efficiently in order to be kind to the environment and the bottom line

Topaz Data Cener, South Jordan, Utah The second phase of eBay’s Topaz Data Center deserves attention for its 72,000 square feet of solar paneling on the roof that generates more than 900,000 kilowatt hours of electricity per year. It’s also using Bloom Energy Servers – fuel cells powered by natural gas – as the primary power source for the facility, using the conventional power grid for backup. In the works is another 5 megawatt power facility to be run off the waste heat from pumps used to force the natural gas 20 miles to the eBay site. The second phase Topaz data center emits 49% less CO2 than phase 1, eBay says.

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