Abstracts ASN Report 2019

zȒǕƺȇɎ ٮ ɀɖȸ ٮ ³ƺǣȇƺ ȇɖƬǼƺƏȸ ȵȒɯƺȸ ȵǼƏȇɎ Operated by EDF and situated in the municipality of Nogent-sur-Seine in the Aube département ً ו ׎ ژ Ǹȅ ȇȒȸɎǝ ٮ ɯƺɀɎ Ȓǔ ÁȸȒɵƺɀً Ɏǝƺ zȒǕƺȇɎ ٮ ɀɖȸ ٮ ³ƺǣȇƺ z¨¨ ƬȒȅȵȸǣɀƺɀ ɎɯȒ ژ ¨á«ɀً ƺƏƬǝ Ȓǔ ׏ً ב ׎׎ ژ xáƺً ƬȒȅȅǣɀɀǣȒȇƺƳ ǣȇ ׏ ژוזח ƏȇƳ ׏ זזח ِ «ƺƏƬɎȒȸ ژ ׏ ƬȒȇɀɎǣɎɖɎƺɀ zX ژ ׏ ژחא ƏȇƳ ȸƺƏƬɎȒȸ ژאژ zX ژ ׏ ב ׎ِ ASN considers that the performance of the Nogent-sur-Seine site with regard to nuclear safety, radiation protection and environmental protection is in line with the average for the plants operated by EDF. As far as nuclear safety is concerned, the licensee must maintain its efforts to be rigorous in the operation of the reactors. ASN notes in particular that the restarting phase Ȓǔ ȸƺƏƬɎȒȸ ׏ ژ ɯƏɀ ɀɖƫǴƺƬɎ ɎȒ Əȇ ɖȇɖɀɖƏǼ ȇɖȅƫƺȸ Ȓǔ ƺɮƺȇɎɀ ƏȇƳ observes that the operator vigilance, particularly in the control room, must be maintained, including in situations of increased activity. Particular attention must also be paid to the system configuring operations. ¨ȸƺȵƏȸƏɎǣȒȇ ǔȒȸ ˡȇƏǼ ɀǝɖɎƳȒɯȇ Ȓǔ Ɏǝƺ Iƺɀɀƺȇǝƺǣȅ ɀǣɎƺ In September 2019, EDF transmitted the declaration of final ɀǝɖɎƳȒɯȇ Ȓǔ Ɏǝƺ Iƺɀɀƺȇǝƺǣȅ z¨¨ً ɯǝǣƬǝ ƬȒȇɀɎǣɎɖɎƺɀ zX דוژ ً to the Minister responsible for nuclear safety and to ASN, in accordance with Article L. 593-26 of the Environment Code. «ƺƏƬɎȒȸ ׏ ɯƏɀ ɀǝɖɎ ƳȒɯȇ Ȓȇ אא IƺƫȸɖƏȸɵ א ׎ א ׎ ƏȇƳ ȸƺƏƬɎȒȸ אژ will be shut down on 30 June 2020. In accordance with the Environment Code, EDF enclosed with its shutdown declaration a decommissioning plan describing the planned decommissioning strategy for the NPP. EDF shall then have to submit a decommissioning file with the aim of obtaining a decree authorising it to start the decommissioning operations. This decommissioning file shall undergo Ə ژ ɎƺƬǝȇǣƬƏǼ ƺɴƏȅǣȇƏɎǣȒȇ ƏȇƳ Ə ȵɖƫǼǣƬ ǣȇȷɖǣȸɵِ Áǝƺȸƺ ǣɀ ƏǼȸƺƏƳɵ ƬȒȇɀǣƳƺȸƏƫǼƺ ǣȇɎƺȸȇƏɎǣȒȇƏǼ ǔƺƺƳƫƏƬǸ Ȓȇ ژ Ɏǝƺ decommissioning of PWR. In France, the Chooz A reactor in the Ardennes uses the same technology and is also ɖȇƳƺȸǕȒǣȇǕ ƳƺƬȒȅȅǣɀɀǣȒȇǣȇǕِ IȒȸ Ɏǝƺ Iƺɀɀƺȇǝƺǣȅ ژ z¨¨ً 0(I ɎȒƳƏɵ ȵǼƏȇɀ ǔȒȸ ǔǣɮƺ ژ ɵƺƏȸɀ Ȓǔ ƳƺƬȒȅȅǣɀɀǣȒȇǣȇǕ preparation, which will extend from final shutdown through to obtention of the decommissioning decree. These preparatory operations include in particular the removal of the fuel from the reactor core and removal of the spent fuel stored in the pools. Once the decommissioning decree has been issued, EDF estimates that the decommissioning operations will take 15 years to achieve the final status, followed by delicensing of the BNI. Considered as a whole, the decommissioning plan submitted by EDF for the Fessenheim NPP is not sufficiently detailed for a facility that is so close to final shutdown. Consequently, in December 2019 ASN asked EDF to justify and further clarify its strategy, particularly regarding the decommissioning time frames and waste management. Xȇ ژ Ɏǝǣɀ ƬȒȇɎƺɴɎً ³z Ȓƫɀƺȸɮƺɀ ɎǝƏɎ 0(I ȵǼƏȇɀ ɀƺȇƳǣȇǕ Ɏǝƺ ȒǼƳ ɀɎƺƏȅ ǕƺȇƺȸƏɎȒȸɀ ٫ɯǝǣƬǝ Əȸƺ ƬɖȸȸƺȇɎǼɵ ɀɎȒȸƺƳ Ȓȇ ɀǣɎƺ٫ ɎȒ ژ ³ɯƺƳƺȇً ǔȒȸ ȸƺƬɵƬǼǣȇǕ ǣȇ ǣɎɀ !ɵƬǼǣǔƺ ³ɯƺƳƺȇ ȵǼƏȇɎً ɯǝƺȸƺƏɀ ژ Ɏǝƺ ƬȒȇƳǣɎǣȒȇɀ ǔȒȸ Ɏǝǣɀ Ɏɵȵƺ Ȓǔ ȸƺƬɵƬǼǣȇǕ ǝƏɮƺ ȇȒɎ ژ ɵƺɎ ƫƺƺȇ ƳƺɎƺȸȅǣȇƺƳ ɯǣɎǝ ȸƺǕƏȸƳ ɎȒ IȸƺȇƬǝ nƏɯِ Furthermore, EDF submitted a safety review guidance file for the Fessenheim reactors in June 2018. In effect, EDF ȅɖɀɎ ɀɖƫȅǣɎ Ɏǝƺ ɀƏǔƺɎɵ ȸƺɮǣƺɯ ƬȒȇƬǼɖƳǣȇǕ ȸƺȵȒȸɎ ǔȒȸ ژ Ɏǝƺ ǔǣȸɀɎ ȸƺƏƬɎȒȸ ƫƺǔȒȸƺ ׏׎ ³ƺȵɎƺȅƫƺȸ א ׎ א ׎ ƏȇƳ ǔȒȸ Ɏǝƺ ژ ɀƺƬȒȇƳ reactor before 28 August 2022. Áǝǣɀ ǕɖǣƳƏȇƬƺ ژ ǔǣǼƺ ɀƺȸɮƺɀ ɎȒ ɀƺɎ Ɏǝƺ ƫȒɖȇƳɀ Ȓǔ Ɏǝƺ ƬȒȇǔȒȸȅǣɎɵ analyses and safety reassessments which are required ǔȒȸ ژ Ɏǝƺ ȵƺȸǣȒƳǣƬ ɀƏǔƺɎɵ ȸƺɮǣƺɯِ Xȇ (ƺƬƺȅƫƺȸ א ׎׏ ח ً ³z ژ ƏǼɀȒ asked EDF for clarifications, particularly concerning Ɏǝƺ ژ ɀƬȒȵƺ Ȓǔ Ɏǝƺ ƬȒȇǔȒȸȅǣɎɵ ȸƺɮǣƺɯ ȵȸȒȵȒɀƺƳ ƫɵ 0(Iً Ɏǝƺ justification for the methodologies used and the unforeseen events considered for the safety review. The safety review reports must enable ASN to ascertain that the safety of Ɏǝƺ ژ ǔƏƬǣǼǣɎɵ ɯǣǼǼ ƫƺ ȅƏǣȇɎƏǣȇƺƳ ƳɖȸǣȇǕ Ɏǝƺ ƳƺƬȒȅȅǣɀɀǣȒȇǣȇǕ preparation phases and decommissioning itself. In November 2019, an in-depth inspection was carried out at the EDF’s Department of dismantling projects and ɯƏɀɎƺ ژ ٢(¨ (א ٣ً ƏȇƳ Ȓȇ Ɏǝƺ Iƺɀɀƺȇǝƺǣȅ ɀǣɎƺِ ³z ǔȒɖȇƳ project work packages that are insufficiently detailed ƏȇƳ ژ ȵȸȒǕȸƺɀɀ ǣȇ Ɏǝƺ ɎƺƬǝȇǣƬƏǼ ɀɎɖƳǣƺɀ ɎǝƏɎ ǣɀ ǣȇɀɖǔǔǣƬǣƺȇɎ given the present stage of the decommissioning project. EDF must reinforce the coordination of the Fessenheim decommissioning project in order to have an overall view Ȓǔ ژ Ɏǝƺ ȵȸȒǴƺƬɎ ǣȇɎƺǕȸƏɎǣȇǕ ƏǼǼ ǣɎɀ ǣȇɎƺȸƏƬɎǣȒȇɀِ XɎ ƏǼɀȒ ƬȒȇɀǣƳƺȸɀ that EDF must improve its organisation to establish and validate fundamental decisions for the decommissioning scenario based on proven and formalised hypotheses. With regard to local operational aspects, the site has already started the planning and preparation of the reactor shutdown operations in 2020, and the management of the workforce and skills during the period prior to decom- missioning. ASN has observed the maintaining of a highly satisfactory level of personnel involvement and considers that the management of the organisational and human challenges entailed by the prospective closure of the site, has been excellent. Furthermore, a number of regulatory requirements, particularly those associated with the implementation Ȓǔ ژ ɀƏǔƺɎɵ ǣȅȵȸȒɮƺȅƺȇɎɀ ǔɖȸɎǝƺȸ ɎȒ Ɏǝƺ ǼƺɀɀȒȇɀ ǼƺƏȸȇƺƳ ǔȸȒȅ the Fukushima Daiichi accident, need to be adapted to the configuration of a site which will no longer be generating power but waiting for decommissioning. Consequently, ASN has started to amend certain requirements, particularly the requirement to build ultimate backup diesel generator sets and the designation of the resources required for Ɏǝƺ ٹژ ǝƏȸƳƺȇƺƳ ɀƏǔƺɎɵ ƬȒȸƺ ٺ ٢ɀƺƺ ƬǝƏȵɎƺȸ ׏׎ً ȵȒǣȇɎ א ِ ח ٣ِ ASN Report on the state of nuclear safety and radiation protection in France in 2019 57 REGIONAL OVERVIEWOF NUCLEAR SAFETY AND RADIATION PROTECTION GRAND EST