ASN gives its approval for the divergence of the Flamanville EPR reactor

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This agreement is provided for in the authorisation to commission the reactor issued by ASN on 7 May 2024. It is similar in principle to those issued by the ASN before each restart of a nuclear power reactor after a maintenance outage.

On 30 August 2024, EDF sent ASN the information required to issue this agreement, in particular the results of the installation tests carried out since the commissioning authorisation.

ASN has carried out several inspections of the reactor since it was commissioned. It has also analysed the significant events reported by EDF and the corrective actions implemented.

The examination of EDF's request and the checks carried out by ASN did not reveal any factor likely to call into question EDF's ability to diverge the reactor.

ASN will monitor the subsequent stages of the reactor's start-up, until it reaches its rated power. In particular, EDF will have to seek the agreement of ASN to go through certain stages of the reactor's ramp-up.

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Published on 08/05/2024 at 13:45

ASN authorise commissioning of the Flamanville EPR reactor

In a resolution of 7 May 2024, ASN authorised commissioning of the Flamanville EPR reactor. This authorisation allows EDF to load nuclear fuel into the reactor and carry out start-up tests, followed by operation of the reactor.

Main steps following commissioning of the Flamanville EPR reactor: