[pencilguin]

Geothermal works fine, in numerous places worldwide today, as may be seen simply by looking.

It just costs more than wind and solar. Same as nukes. Unlike nukes, geo was once competitive without heavy subsidy, in places.

[credit_guy]

Correct me if I'm wrong, but I think geothermal works where the nature has done the work for us. Where there are underground springs that turn hot and the water comes up steaming.

If you plan to drill the holes yourself, you have a lot of work to do. Drilling is expensive, and a single hole will not get you a lot of heat after the initial honey moon period.

[pencilguin]

California has got reliable power from geo for quite a few decades, as has Iceland. Iceland is not awash in geysers.

Geo costs more than renewables, but that was not at issue. It is anyway cheaper than nukes, in places where it is used.

[jasmer]

Geothermal is not the same as drilling holes down into the earths crust. Geothermal is tapping into natural release of heat from the earth.

[pencilguin]

...which involves drilling.