This report provides an update on Hitachi-GE’s progress with Generic Design Assessment (GDA) of the UK Advanced Boiling Water Reactor (UK ABWR), and the progress of Westinghouse’s AP1000 reactor design between May and October 2016. AP1000: Westinghouse’s approach to GDA closure has continued to improve and we are seeing the results of its revised management arrangements. There is agreement on the technical scope of work required to address the outstanding issues, and overall submissions are improving. However, the regulators are concerned about the volume of work still to be assessed in the remaining time. ABWR: ONR continues its intensive assessment of the UK ABWR Step 4 technical submissions, and we are now moving towards finalising any additional safety case issues and identifying matters that may require further work. There is a large volume of work remaining; however Hitachi-GE continues to respond well and maintain pace. The Environment Agency and Natural Resources Wales continues their assessments and are starting consultation on their findings so far on 12 December 2016.
ONR 17th Nov 2016 read more »