Can anyone here say what is wrong with Geo-Thermal Energy? We live on a molten ball of rock with only a few miles of solid rock from keeping us from being burned to a crisp. Drill a hole into the ground for a few miles, pump water down it, steam produced, job done. I heard there's enough Geo-Thermal energy to last us around 100 million years.
The cost of drilling to the depth needed. It is used in someplaces, where the crust isn't so thick.