[at0mic22]

Thanks for the article!

As I understood, drilling deep is quite expensive and, comparing to centralized heating stations working with gas for instance, the thermal output does not allow building heat factories. In example they state that they needed 8 500-meter holes for 4 houses and only 64 apts. So they are talking about typical Scandinavian 4-floor buildings, which are as well A-class insulated.

It stands nowhere near to typical buildings of East Berlin for instance.

[_0w8t]

The article mentioned Akershus hospital in Norway. It is a big 6-floor building. For taller buildings deeper drilling is required, but still should possible. But I guess for really toll buildings one should focus on improving isolation as presently it may not be cost-effective just to install heat pumps.