Two UK nuclear reactor plans receive interim acceptance

Generic designs for two nuclear reactors proposed for construction in the UK have been granted interim acceptance by the independent nuclear safety, security and environment regulators.

In a statement, the Office for Nuclear Regulation and the Environment Agency confirmed they are satisfied with how the designers of EDF and Areva’s UK EPR and Westinghouse’s AP1000 reactors plan to resolve a number of remaining generic design assessment (GDA) issues.

In reports published today by the Office for Nuclear Regulation Kevin Allars, director for Nuclear New Build, stated that 51 GDA issues remain with the Westinghouse AP1000 reactor and 31 remain with the EDF and AREVA UK EPR reactor.

Neither reactor can be built in the UK until these issues — in areas including internal hazards, civil engineering, fault studies, fuel design and reactor chemistry — are resolved.

For both designs, the Office for Nuclear Regulation has issued interim Design Acceptance Confirmations (iDAC) and the Environment Agency has issued interim Statements of Design Acceptability (iSoDA).

Reports for each design summarising the basis of their decision, together with their technical assessments are available here.

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