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Cloud Data Centers Use 30 Billion Watts of Power
nytimes.com
And they probably don’t need to! The Times has been digging in to this one for the past year, and they published their findings over the weekend. The most damning stat: only 6 to 12% of that power is actually put to work serving data. The rest is reserve capacity for traffic spikes. That’s the price of 100% uptime.
Read more: http://buzzfeed.com/tommywilhelm/cloud-data-centers-use-30-billion-watts-of-power