It is certainly cleaner than coal, that would be the main reason to keep them running (if possible, what is not given). They make little difference in the energ

It is certainly cleaner than coal, that would be the main reason to keep them running (if possible, what is not given). They make little difference in the energy supply to Germany, as they provide like 6% of the German electricity. This is easily (though dirty) replaced with coal. About reliable: in the winter hopefully, but currently Europe is facing a shortage of electric power due to the heat and the drought reducing the availability of nuclear power (never mind the 20 French nuclear power plants down for maintenance)