I'm no energy engineer so I'm just going off what I randomly know: in Iceland they transport ~80°C water from a power plant off in the mountains (okay that make

I'm no energy engineer so I'm just going off what I randomly know: in Iceland they transport ~80°C water from a power plant off in the mountains (okay that makes it sound further than it really is) to Reykjavík and it loses only a few degrees along the way. Used for residential heating, hot water (it's potable but smells bad so they use heat exchangers), and even street heating against sleet. The distance is something like thirty minutes of driving on the highway if I remember correctly, so like 30km? While I see your point in general, also because servers are not typically put in oil or anything so this would be hot air (much less dense than water), I wonder if it's as simple as that. It's not like the Netherlands has spots where you are further than a handful of kilometers from the nearest buildings and, often, towns.