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Welcome to the UK HPR1000, Generic Design Assessment (GDA) website

Step 2 consultation has now closed.

All comments received between the close of Step 2 and the opening of Step 3 will receive a response and will be considered by the Regulators as part of the Step 3 assessment..

China General Nuclear Power Corporation (CGN) and EDF, through their joint venture company General Nuclear System Limited (GNS), commenced the Generic Design Assessment (GDA) process for the UK HPR1000 in January 2017.

GNS has been established to act on behalf of the three joint requesting parties (CGN, EDF and General Nuclear International) to implement the Generic Design Assessment of the UK HPR1000 reactor; more information on the each of these companies and the structure of GNS can be found on the About us page. For practical purposes GNS is referred to as the ‘UK HPR1000 GDA Requesting Party’.

In November 2017, the Regulators concluded that the information submitted by GNS during Step 1 is sufficient to allow the start of Step 2. Step 2 formally commenced on 16 November 2017 and is planned to last approximately 12 months. The targeted timescale for the UK HPR1000 GDA process is approximately five years from the start of Step 1.

This website has been set up to publish information on the HPR1000 nuclear reactor design that is currently undergoing assessment by the UK nuclear regulators – the Office for Nuclear Regulation and the Environment Agency. You can find out more information about the process on our GDA process page.

Within this site you will find information on the HPR1000 reactor technology, design, safety and environmental features. You can also access the range of technical documents that will be submitted to the regulators throughout the process in our Documents library.

As part of the GDA process we are now inviting you to comment on the HPR1000 reactor design and the regulatory submissions that we make to the regulators.