In its position statement, ASN drew EDF’s attention to the particularities of the Bugey NPP reactors, the design of which predated that of the other 900 MWe reactors and which require a specific review process. With respect to the lessons learned from the stress corrosion cracks discovered since 2021, it also pointed out that EDF must improve its verification methods in areas where no degradation mode is to be feared. As with the previous periodic safety reviews and in order to take advantage of the standardised nature of its 32 reactors of 900 MWe, EDF intends to carry out this fifth periodic safety review in two stages: • A “generic” periodic safety review phase, covering subjects common to all the 900 MWe reactors, both for risk management and for management of the drawbacks presented by the installations. This generic approach is a means of pooling and sharing studies for management of facility ageing, obsolescence and conformity, as well as those for the safety reassessment and the design of potential modifications to the facilities. • A “specific” periodic safety review phase, concerning each individual reactor and to be staggered between 2030 and 2041. This phase will make it possible to incorporate the specific characteristics of the installation and its environment, for example such as the level of natural hazards to be considered, the specific nature of the local environment, the other uses of the water resource and the condition of each installation. Before issuing a position statement, ASN obtained the opinion of the French Institute for Radiation Protection and Nuclear Safety (IRSN) and the Advisory Committee of Experts for Nuclear Reactors (GPR) regarding the EDF guidance file. ASN also consulted the public about its draft position statement, from 15 October to 11 November 2024. Upstream, in partnership with IRSN and the National Association of Local Information Committees and Commissions, (Anccli), it organised two webinars intended for the members of the Local Information Committees (CLIs) and the general public, so that they could familiarise themselves with the guidelines proposed by EDF, the assessment made by IRSN, and the draft ASN position statement submitted for consultation. ♦ GRAVELINES SAINT‑LAURENTDES‑EAUX CHINON BLAYAIS DAMPIERRE‑EN‑BURLY BUGEY CRUAS‑MEYSSE TRICASTIN Saint‑Laurent B1 19/12/1980 Saint‑Laurent B2 11/05/1981 Gravelines 1 13/03/1980 Gravelines 2 26/08/1980 Gravelines 3 12/12/1980 Gravelines 4 14/06/1981 Gravelines 5 28/08/1984 Gravelines 6 10/08/1985 Chinon B1 28/10/1982 Chinon B2 23/09/1983 Chinon B3 18/09/1986 Chinon B4 13/10/1987 Dampierre 1 19/09/1980 Dampierre 2 16/02/1981 Dampierre 3 27/05/1981 Dampierre 4 20/11/1981 Blayais 1 20/05/1981 Blayais 2 27/06/1982 Blayais 3 29/07/1983 Blayais 4 01/05/1983 Tricastin 1 21/02/1980 Tricastin 2 22/07/1980 Tricastin 3 29/07/1980 Tricastin 4 31/05/1981 Cruas 1 02/04/1983 Cruas 2 01/08/1984 Cruas 3 09/04/1984 Cruas 4 01/10/1984 Bugey 2 18/04/1978 Bugey 3 30/08/1978 Bugey 4 16/02/1979 Bugey 5 13/07/1979 Reactors 1 and 2 were definitively shut down in 2020. FESSENHEIM 900 MWE REACTOR START-UP DATES 32 reactors concerned NOTABLE EVENTS 2024 ABSTRACTS – ASN Report on the state of nuclear safety and radiation protection in France in 2024 21
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