Throughout the GDA process, Holtec Britain has submitted a series of documents to the regulators in support of the assessment of the SMR-300 design. The principal deliverables are the Safety, Security and Environment Case (SSEC), which is made up of the Preliminary Safety Report, Preliminary Environmental Report, and Generic Security Report.

Holtec is committed to sharing these documents on our website to provide the public with visibility of our GDA journey. While all commercially or security-sensitive information will be removed, we will make every effort to ensure as much information as possible is available.

In addition to the material published on our website, the regulators will also release information on their respective websites (see links below), both at key milestones and periodically, to report on progress in the regulatory process.

We welcome your questions on the SMR-300 design based on the information contained in the SSEC. Please use the ‘Have Your Say’ link in the navigation bar above to get in touch.

Environment Agency – New nuclear power stations: assessing reactor designs

ONR – Generic Design Assessment (GDA)  

Natural Resources Wales