North American Network Operators Group

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Re: rack power question

  • From: Petri Helenius
  • Date: Tue Mar 25 16:39:26 2008

Paul Vixie wrote:

this is a strict business decision involving sustainability and TCO. if it
takes one watt of mechanical to transfer heat away from every watt delivered,
whereas ambient air with good-enough filtration will let one watt of roof fan
transfer the heat away from five delivered watts, then it's a no-brainer. but
as i said at the outset, i am vexed at the moment by the filtration costs.
Have you made any calculations if geo-cooling makes sense in your region to fill in the hottest summer months or is drilling just too expensive for the return?