Ark Data Centres design , build , and operate some of the UK ’ s most efficient data centres . Its sites have been powered by 100 % renewable energy for the past six years , and Ark ’ s innovative approach to water buffering has cut its consumption from local utility services by 85 % - which the company augments by capturing and filtering rainwater from the roofs of its facilities .

The nordics are often a byword for sustainable data centre design . That reputation is at least in part thanks to the work done by Green Mountain since its founding in 2010 . The Norwegian firm has a long-established track record of using 100 % renewable power , thanks to Norway ’ s abundant reserves of hydroelectric and wind energy , which helps make Green Mountain ’ s environmental footprint among the lightest in the industry . The company even announced plans last year to use excess heat from its data centre in Stavanger to provide heated water to a nearby lobster farm .

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