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Re: WSJ: Big tech firms seeking power

  • From: Matthew Crocker
  • Date: Fri Jun 16 16:16:44 2006 


I wonder just how much power it takes to cool 450,000 servers.




450,000 servers * 100 Watts/Server = 45,000,000 watts / 3.413 watts/
BTU = 13.1 Million BTU / 12000 BTU/Ton = 1100 Tons of cooling



A 30 Ton Liebert system runs about 80 amps @ 480 volts or 38400
watts, you'll need at least 40 or them to cool 1100 tons which is
1536 Kw * 24 hours * 7 days * 4.3 weeks = 1,110,000 KwH/month * $0.10/
KwH = $111,000 /month in cooling.



I think my math is right on this...



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Matthew S. Crocker

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