If we can extract minerals from the Earth then we can extract them from PV panels to refurbish/build new PV panels.
If you don't like that, then there's also concentrated solar. We're not going to run out of mirrors.
Fissile isotopes on the other hand, once they're gone, they're gone. You can build new reactors that run on different fuel but that's not the same thing as you were doing before, so you can't call the original process renewable.
If you don't like that, then there's also concentrated solar. We're not going to run out of mirrors.
Fissile isotopes on the other hand, once they're gone, they're gone. You can build new reactors that run on different fuel but that's not the same thing as you were doing before, so you can't call the original process renewable.