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Step 3 has now opened

As part of the GDA process for the UK HPR1000 reactor technology, we have made available information on the reactor design as well as the technical documents that we submit to the UK regulators at each step of the process (see GDA process page for more information).

Step 3 commenced on 15 November 2018 and we have published the following draft documents:

  • Pre‐Construction Safety Report (PCSR)
  • Pre-Construction Environmental Report (PCER)
  • Generic Security Report (GSR)

They can be accessed via the Step 3 page.

We value your comments on the information we have published here, so please provide your views or questions on the reactor design, safety and environmental aspects by clicking the Proceed to Comment button below.

We shall consider all relevant comments and seek to respond within 30 days. We will share all comments received, along with our responses, with the regulators.

Please note that the GDA process does not cover the principles of nuclear policy or the siting of potential power stations.

You can submit comments on our submissions electronically by clicking the Proceed to Comment button below, or by post to the freepost address FREEPOST UKHPR1000.

Comments received by 25 October 2019 will be considered as part of the ONR’s assessment of Step 3.  The Environment Agency will continue to accept comments for this step and will be consulting on its findings so far, in due course.

The GDA is a continuous process and all comments received up until around four months before the end of the GDA will be considered by General Nuclear System and the regulators.

If you have any questions on how to submit a comment or face a problem with any part of this website, please contact us.