Comment by ninalanyon
11 hours ago
No it's not. It exists but it's certainly not common for individual dwelling to use ground source heat pumps, at least in Norway. It is more common in Sweden[1] but still far less common than air source and over 90% of heat pump installations in Norway are air source[2].
The only ground source installations I can think of in Norway serve large office buildings and similar. The largest heat pump installation I know of in Norway is actually a third kind: water source[3]. It takes heat from the Drammen river to provide heat for a district heating system and for keeping the town centre clear of ice in the winter as well as supplying the new hospital with heat.
I imagine that the rest of the Nordic region is similar.
See:
[1] http://publications.jrc.ec.europa.eu/repository/bitstream/JR...
[2] https://www.sciencedirect.com/science/article/pii/S221313882...
[3] https://energiteknikk.net/2023/11/drammen-fjernvarme-storst-...
If by Nordics you mean Norway, Sweden and Finland, then the most correct way to say would be that ground source heat pumps for redidential heating are (very) common in Sweden and Finland, especially in newer and larger buildings. Norway is somewhat different in energy and climate perspective than its eastern neighbours.
The biggest reason to not install ground source heat pump is high installation cost. This means that it makes more sense for larger residential buildings. Also If you have district heating available then this might be more economical in the long run.
In Finland around 50% of new single-family homes use ground source heat pumps. So it's definitely popular here.
3 schools in my neighborhood (barneskole, ungdomsskole & videregående) all use ground source heat pumps.