The problem is, once Chernobyl happened (which might have bankrupted a struggling USSR), every country became wary of nuclear as some hidden costs are now more apparent. The Fukushima disaster didn't help either: Even if you run your plant just fine, a strong earthquake can turn it into a nuclear bomb.
So we are back to basics, collecting photons from far away. Using quantity instead of sci-fi stuff. It's quite safe too, at least the panels themselves.