Most green energy facilities have very little mw output for every penny invested. Take this comparison:-
Kenya has so far invested $3bn in geothermal since 1981 producing 636mw of electricity. South Africa on the other hand invested $7.5bn in medupi coal plant producing 4800mw of electricity
This clearly shows that geothermal though clean is very costly to build. To industrialize, we'll need coal and nuclear plants