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Peter Rumsey Speaks on Data Center Economizing at Critical Facilities Roundtable Oakland, California, June 8, 2009 Fresh air cooling using air-side economizers - also known as "free cooling" - is being more widely adopted as data centers seek improved energy efficiency and lower Power Usage Effectiveness (PUE) ratings. On May 28, 2009, Advanced Data Centers hosted a meeting of the Critical Facilities Roundtable in which Peter Rumsey, President of Rumsey Engineers, gave a presentation on the use of economizers at ADC's LEED Platinum facility in Sacramento, Calif. ADC says its economizers are a key piece of the facility's PUE rating of 1.12. Mr. Rumsey's presentation spans these four 10-minute videos.
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