I have always wondered about the origins of the anti nuclear opinion of Germans. It has Cold War origins to be sure, but what kind? I suspect American intelligence has been supporting the anti nuclear movement for some time, for non-proliferation reasons - and not just in Germany. I certainly would be, if I ran the State Department.
It's mostly fear after Chernobyl, fueled by environmental groups and the Green party primarily.
Pete Seeger wrote his anti-nuke spin-off of "Acres of Clams" in the 1970s I think.
Not specific to Germany but there's been a very vocal anti-nuke movement almost since the beginning. They were pretty successful in ending new nuclear generating plant construction in the USA also.