nanog mailing list archives
Re: WSJ: Big tech firms seeking power
From: Matthew Crocker <matthew () crocker com>
Date: Fri, 16 Jun 2006 16:16:14 -0400
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... -- Matthew S. Crocker Vice President Crocker Communications, Inc. Internet Division PO BOX 710 Greenfield, MA 01302-0710 http://www.crocker.com
Current thread:
- WSJ: Big tech firms seeking power Sean Donelan (Jun 14)
- Re: WSJ: Big tech firms seeking power Matthew Petach (Jun 15)
- Re: WSJ: Big tech firms seeking power chuck goolsbee (Jun 16)
- Re: WSJ: Big tech firms seeking power Alexei Roudnev (Jun 16)
- RE: WSJ: Big tech firms seeking power Christian Nielsen (Jun 16)
- Re: WSJ: Big tech firms seeking power Matthew Crocker (Jun 16)
- Re: WSJ: Big tech firms seeking power Alex Rubenstein (Jun 16)
- Re: WSJ: Big tech firms seeking power Michael Loftis (Jun 16)
- Re: WSJ: Big tech firms seeking power Alexei Roudnev (Jun 17)
- Re: WSJ: Big tech firms seeking power Crist Clark (Jun 16)
- Re: WSJ: Big tech firms seeking power Alex Rubenstein (Jun 16)
- Re: WSJ: Big tech firms seeking power Nicholas Suan (Jun 16)
- Re: WSJ: Big tech firms seeking power william(at)elan.net (Jun 16)
- Re: WSJ: Big tech firms seeking power Adam McKenna (Jun 16)
- Re: WSJ: Big tech firms seeking power chuck goolsbee (Jun 16)
- Re: WSJ: Big tech firms seeking power Chris Adams (Jun 16)
- Re: WSJ: Big tech firms seeking power Alex Rubenstein (Jun 16)
- Re: WSJ: Big tech firms seeking power Matthew Petach (Jun 15)