Solar is way less reliable because it’s efficiency depends on outside temperature and on the sun, but it’s more versatile in that it can provide general electricity where geothermal is only good for heating and cooling. It just hasn’t quite broken through to be cost effective enough. People would buy it if it were. I’d like solar and a battery as an emergency backup, but it’s tough to justify.
Solar is way less reliable because it’s efficiency depends on outside temperature and on the sun, but it’s more versatile in that it can provide general electricity where geothermal is only good for heating and cooling. It just hasn’t quite broken through to be cost effective enough. People would buy it if it were. I’d like solar and a battery as an emergency backup, but it’s tough to justify.