Germany took fright at nuclear power after the reactor fire at Chernobyl in April 1896 and reverted to burning brown coal, sometimes known as lignite, which is indeed dirtier than our "black" coal.
Meanwhile, Western countries, including the UK, embarked on a Technical Assistance programme (Tassis), under the aegis of the International Atomic Energy Authority, sending scientists and engineers into former Soviet bloc countries to advise how to keep their reactors safe, principally because we did not want them burning lignite.
Germany's aversion to nuclear power did not prevent them from trying to muscle in to Tassis to sell their kit at Kozluduy in Bulgaria, which had Russian designed and built VVER reactors.
Dick