Yeah that's much more interesting. There's a limited need to do these things locally. Not just data centres btw, factories, too, actually mainly. But that requ

Yeah that's much more interesting. There's a limited need to do these things locally. Not just data centres btw, factories, too, actually mainly. But that requires heat pipes throughout cities, basically next to your electricity, internet, water & sewage, you now want additional heat pipes running through every home. That requires huge infrastructure investments, which makes sense for new real estate, but is probably not worth it for existing homes. Lower hanging fruit is actually other factories. The infrastructure to connect these two is much more trivial in scale, as well as in execution (laying a pipe in sandy industrial land isn't as big a deal as under paved residential areas). For non-factory buildings like swimming pools, this works great, too. So in the Netherlands for example there's one milk factory which heats and cleanses swimming pool water. (the pool was built with this in mind though, not retrofitted). And one large elderly home is heated by waste heat from a sewage cleaning facility. Another entire industrial area of factories is supplied with the heat from a waste burning facility. All of this is much easier than tackling homes, for now.