The Green Grid has released a quick cooling calculator to help US data centre and facilities managers determine how much "free" cooling is available to data centres using water-side economisers. However when using this calculator, remember nothing in this world is free: water is also a limited resource so there is a need to balance each environmental effect from a 'green' implementation.

For more water related blog posts and stories, checkout: http://www.greenm3.com/water/
And for more free Green Grid resources, check out: http://www.thegreengrid.org/library-and-tools.aspx
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