Auvergne‑Rhône‑Alpes Inter-regional warehouse The inter-regional warehouse (MIR – BNI 102) operated by EDF at Bugey is a storage facility for fresh nuclear fuel intended for the NPP fleet in operation. ASNR carried out an inspection in 2025 to check the organisation in place for the delivery of containers containing new fuel assemblies. The conclusions of this inspection are positive and ASNR is satisfied that the commitments made at the previous inspection have been fulfilled. Saint‑Alban nuclear power plant The Saint-Alban NPP, operated by EDF in the Isère département in the municipalities of Saint‑Alban‑du‑Rhône and Saint‑Maurice‑ l’Exil, 40 km south of Lyon, comprises two 1,300 MWe PWRs commissioned in 1986 and 1987. Reactor 1 constitutes BNI 119 and reactor 2 BNI 120. ASNR considers that the performance of Saint-Alban NPP with regard to radiation safety and radiation protection stands out positively with respect to ASNR’s general assessment of EDF nuclear plant performance. The environmental protection performance of the NPP is in line with ASNR’s general assessment of the EDF plants in this area. In terms of nuclear safety, ASNR notes that the site’s facilities are being operated and maintained satisfactorily, in the context of preparations for the fourth ten-yearly outage programmes due to start in 2027. ASNR considers that the refuelling and maintenance outage for reactor 2 was carried out under satisfactory safety conditions. Critical activities, such as the renovation of the reactor instrumentation system, were carried out in accordance with safety requirements. In terms of radiation protection, ASNR considers that operational results are satisfactory and that occupational exposure is under control. Nevertheless, ASNR noted a number of shortcomings in terms of radiation protection culture and sufficiently rigorous site marking. Regarding protection of the environment, ASNR considers that the management and handling of unforeseen technical issues affecting the environmental protection devices is improving. The equipment for containing liquid pollution, and in particular the retention systems, are in a satisfactory technical state. In terms of occupational health and safety, ASNR notes that the site is continuing to roll out national measures, particularly in the areas of lifting, ventilation of premises at risk of specific pollution and asbestos risk management. Specific actions relating to the risk of lead contamination are being followed up satisfactorily. With the shutdown of reactor 2 in 2025, the accident rate has been brought under control, thanks in particular to the introduction of a riskprevention approach that is more clearly expressed on the site. Cruas‑Meysse nuclear power plant Commissioned between 1984 and 1985 and operated by EDF, the Cruas-Meysse NPP is situated in the Ardèche département on the municipalities of Cruas and Meysse and comprises four PWRs of 900 MWe each. Reactors 1 and 2 constitute BNI 111 and reactors 3 and 4 constitute BNI 112. ASNR considers that the performance of the Cruas-Meysse NPP with regard to nuclear safety and environmental protection is in line with ASNR’s general assessment of the EDF plant performance. On the other hand, its performance in terms of radiation protection falls short of ASNR’s general assessment in this area. In terms of nuclear safety, ASNR has identified shortcomings in the preparation of activities, the quality of intervention procedures and compliance with them. The action plan to improve operating rigour, in place since 2023, appears to be running out of steam. ASNR notes the improvement in control room monitoring and compliance with the Operating Technical Specifications. In the area of maintenance, ASNR notes the satisfactory preparation for reactor outages and the satisfactory progress made during the fourth ten-yearly outage of reactor 1. Nevertheless, the detection of a few deviations in the performance of maintenance activities calls for increased vigilance in this area. In terms of radiation protection, ASNR has noted, through its inspections and the events that have occurred, recurring deviations in terms of radiation protection culture, dosimeter management, the posting of access conditions and the management of contamination measurement equipment. ASNR expects improvements in this area. With regard to environmental protection, ASNR notes that the situation has remained stable compared with 2024. It expects to see improvements in the management of liquid pollution containment measures, and in particular in the containment measures for preventing environmental damage in the event of effluent spills on the site. In terms of occupational health and safety, ASNR considers that the site’s results are lagging behind. Although the accident rate has improved compared with 2024, the risks of falling from a height and tripping are still predominant. A severe accident involving a fall from a height occurred on the site in 2025. On the other hand, the process for reporting dangerous situations appears to be efficient, enabling risk situations to be dealt with appropriately. 40 ABSTRACTS – ASNR Report on the state of nuclear safety and radiation protection in France in 2025
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