The steam generators at Beznau and Gösgen do not deviate from the design requirements in terms of their carbon content. This is the result of a review of the manufacturing documents. The structural integrity of the steam generators’ individual components is ensured by a large margin.

At the beginning of December 2016 the Swiss Federal Nuclear Safety Inspectorate (ENSI) requested the inspection of the steam generators at the Gösgen and Beznau nuclear power plants. Georg Schwarz, ENSI Deputy Director and head of the NPPs Division, explains the background and context in the following interview.

The Swiss Federal Nuclear Safety Inspectorate (ENSI) requires that the Beznau and Gösgen nuclear power plants check the quality and design of the forgings of the steam generators in respect of adherence to the material specifications. In doing so, ENSI is reacting to information from France.