We have that in Germany as well, "Fernwärme" (="remote heat"). Apparently it's ubiquitous in Denmark and Sweden as well. Apparently they started building this

We have that in Germany as well, "Fernwärme" (="remote heat"). Apparently it's ubiquitous in Denmark and Sweden as well. Apparently they started building this based on nuclear power plants as well in Russia (Woronesch, Nischni Nowgorod), but gave it up. That would've been a bit creepy, to have a pipe straight from the local reactor to your home...