[en] Automatic translation: Since the Federal Republic through the conclusion of the Germany Treaty In 1955 it was again possible to deal with questions of nuclear energy, the German energy supply companies have Investigations made to what extent through the use of the Nuclear energy is a technically and economically safe generation of electricity is also possible for the future. The companies came to believe that this goal was achieved the construction of nuclear power plants can be achieved. After familiarization with the special issues of nuclear technology, initially mainly theoretical work was carried out. This preliminary work were primarily used to analyze what was known at the time Reactor types, especially with regard to their usability municipal company. The first investigations already showed that the costs associated with building a new type of power plant Risks were so high that there was the possibility of many smaller ones Electricity supply would exceed.