I wish someone would setup neighborhood geothermal heat pumps as a heating utility or coop model. It's so expensive for everyone to bore into the ground for this.
Modern new builds of housing do this, at least in some countries. At that stage you can not bother installing gas pipes and come out financially ahead.
Though air source are getting so good that places that require ground source are getting smaller.
Though air source are getting so good that places that require ground source are getting smaller.