The "north" of Canada (assuming you mean a place that has some semblance of infrastructure) doesn't get -that- cold in the summer. Yellowknife and Whitehorse bo

The "north" of Canada (assuming you mean a place that has some semblance of infrastructure) doesn't get -that- cold in the summer. Yellowknife and Whitehorse both have average summer temperatures around 20C. In any case, I think you'd still need substantial cooling infrastructure to deal with the summer. Your capital costs are going to waaaay higher. While your thermal management costs will go down, your payroll will probably be higher.