Free Cooling Every Day
It feels good that summers in The Power Region are cool. Not that there is snow on the streets, far from it, but the people living in Östersund are happy when the temperature rises above 15 C / 60 F in the middle of July. The cold climate is an advantage for data centers: It keeps cooling costs down.
Annual average temperature in The Power Region is 4 C / 39 F. Only 65 hours (in 13 days) in the past 10 years were marginally warmer than the ASHRAE TC 9.9 recommended level of 26.6 C / 80 F. Temperature has never been over 29 C / 84 F during this time.
Official weather data is available from Swedish Meteorological and Hydrological Institute