In Sweden it’s quite common to heat single family homes with geo. Here is a report I found from where table T2.6 breaks down different heating. Link to the
Excel sheet
As of 2021 14% used geo (berg/jord/sjö) roughly translated ~ bedrock/ground/lake.
And 10% used geo in combo with something else, usually some sort of wood burning stove.
In Sweden it’s quite common to heat single family homes with geo. Here is a report I found from where table T2.6 breaks down different heating. Link to the Excel sheet
As of 2021 14% used geo (berg/jord/sjö) roughly translated ~ bedrock/ground/lake. And 10% used geo in combo with something else, usually some sort of wood burning stove.
Page with more info (in Swedish) The Swedish Energy Agency