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ONR’s regulatory influence on the EPR design in the UK

ONR is required by the Regulators’ Code to carry out its activities in a way that supports those we regulate to comply and grow when it is safe to do so. To ensure that we continue to consider the impact of our regulation, and to incorporate learning for the future, we conducted a review of the design evolution of the European Pressurised Water Reactor (EPR) at Hinkley Point C (HPC). 

This work specifically examined the role that ONR’s regulatory requirements have played in the modification of HPC from the reference design (the design proposed for Flamanville in France) that was submitted to the Generic Design Assessment (GDA) process in 2007.

The review was carried out in collaboration with NNB GenCo (EDF) who are delivering the HPC project.