Analysis of the EU stress test results for the NPP Fessenheim and Beznau. Pt. 1. Fessenheim

As a consequence of the reactor accidents in Fukushima Daiichi the safety status of nuclear power plants was performed by national and international surveillance processes. In Germany the safety status of the NPP was testes by the reactor safety commission, an expert commission of Baden-Wuerttemberg, an expert commission of Bavaria and the EU stress test. The evaluation criteria based on national and international surveillance processes were focused on earthquakes, flooding and postulated failures of the electricity supply - station blackout and long-lasting failure of the emergency power supply. In Germany extended requirements included the electricity supply and the emergency cooling water supply. The authors identify essential safety relevant systems in the NPP Fessenheim. The evaluation of the EU stress test for the NPP Fessenheim covers the issues earthquake, flooding, spent fuel element pool, electricity supply, cooling water supply and identification of further safety relevant deficiencies.