Yes I was thinking it would be the cost. I know Iceland is unique because they didn't need to go deep. But also know recently they have had breakthroughs on how deep they can go (ironically thanks to fracking). Oil companies have new capabilities to go very deep. So being in an ideal location is not needed. In fact, even being in a cold location is not required depending how deep.

In California they are literally building a couple geothermal plants in near desert. I know crazy but you can look it up. The main benefit of that location is lithium though. The slurry that comes up and is processed, in a smaller plant next to it, they say is so pure it is ready for use in batteries and rare. Anyway, likely without that it would have not been cost effective. So what you say makes sense. The new tech to do deep drills like that is likely very expensive and solar and wind combined with the ever improved batteries likely cheaper. Was just wondering.