On 5 July, 11:07, The Natural Philosopher
wrote:

Just as geothernmal and hydrolelectric work well where Natuer favours them.

Geothermal can have serious problems with acid rain. Many of the sites
which offer enough geothermal to generate power, as opposed to merely
space heating, have groundwater full of sulphides. This means either
venting it, with emission problems, or a horrible expensive system of
down-hole plumbing with a secondary circuit.

It can work, but it's not the free lunch that was hope for.