Exactly. I've always wondered why large data centers are not used to heat the office space they are housed in. Last winter, I visited a data center in Norway an

Exactly. I've always wondered why large data centers are not used to heat the office space they are housed in. Last winter, I visited a data center in Norway and was kind of stunned when they answered my question about the excess heat with "oh, we just blow it again out through the aircon duct". By re-using the heat energy of a server farm, you're essentially using the same amount of electricity twice - this should be a real no-brainer (especially considering all those companies who are currently in the process of making their office towers "green").