> having your data centre in a region where the outside air is cold > means you can get rid of excess heat, but severe winter weather can > then pose its own problems
Providing the contra discussion, $dayjob has its datacentre in western australia where 40+ degrees C in summer isn't uncommon. Combined with low humidity means our cooling towers for the condenser side of the chillers get through LOTS of potable water. The workaround we use is to use one of the subsurface aquifers as a heatsink for the Crays (22 degree water inlet temp) as described on http://www.groundwatercooling.csiro.au/ 130 KW of solar panels on the roof helps to offset the running costs of the pumps
