Office for Nuclear Regulation

Category: Hunterston ‘B’ – EDF Energy Nuclear Generation Ltd

Hunterston B – Inspection ID: 52503

November 27, 2023 - Executive summary Date(s) of inspection: June 2023 Aim of inspection ONR nuclear safeguards inspectors visited the Hunterston B site on 22 June 2023 for the purpose of conducting an inspection across the Nuclear Safety and Nuclear Safeguards Purposes. The focus for of this inspection was nuclear material accountancy and control through end of generation defuelling […]


Hunterston B – Inspection ID: 52538

November 7, 2023 - Executive summary Date(s) of inspection: August 2023 Aim of inspection The purpose of this inspection is to test the adequacy of EDF Nuclear Generation Ltd (NGL’s) application of its Licence Condition (LC) 36 management of organisational change (MOC) arrangements to the changes planned in the Operations department at Hunterston B (HNB) in Q4/2023.  As part […]


Hunterston B – Inspection ID: 52539

October 17, 2023 - Executive summary Date(s) of inspection: August 2023 Aim of inspection This is a planned inspection of EDF Energy Nuclear Generation Ltd.’s (NGL’s) Hunterston B Power Station, undertaken as part of the planned intervention strategy for the Operating Facilities Division (OFD) of the Office for Nuclear Regulation (ONR). The work was carried out in accordance with […]


Defuelling milestone for Hunterston B

October 10, 2023 - EDF complete defuelling of Reactor 3 at Hunterston B


Hunterston B – Inspection ID: 52537

October 2, 2023 - Executive summary Date(s) of inspection: May 2023 Aim of inspection The inspection examined the plans for management of the asset during the defuelling phase of operations and beyond.  In particular the approach taken for the retirement of systems no longer required to provide a safety function. Subject(s) of inspection LC22 – Modification or experiment on […]


Site Stakeholder Group (SSG) reports for Q2 – 2023

August 1, 2023 -


Hunterston B – Project Assessment Report (PAR): ONRW-2019369590-622

June 20, 2023 -


Hunterston B – Inspection ID: 51007

May 9, 2023 - Executive summary Date(s) of inspection: November 2022 Aim of inspection CA to gain confidence in HNB’s approach to hazardous substance removal and decommissioning of associated plant systems. CA to understand HNB’s MOC strategy and its implementation where it relates to COMAH. CA to receive more detailed information on the plans to handover to Magnox, including […]


Hunterston B – Inspection ID: 51011

April 28, 2023 - Executive summary Date(s) of inspection: February 2023 Aim of inspection To confirm adequate implementation of LC7 Subject(s) of inspection LC 07 – Incidents on the site – Rating: Green Key findings, inspector’s opinions and reasons for judgement made I carried out an inspection of the implementation, at Hunterston B, of the arrangements for LC 7 […]


Hunterston B – Inspection ID: 51013

April 20, 2023 - Executive summary Date(s) of inspection: January 2023 Aim of inspection The inspection will primarily seek assurance that station conventional health and safety (CHS) capability is suitable for the current defueling/deconstruction phase of activity. Subject(s) of inspection MHSWR – rating: Green Key findings, inspector’s opinions and reasons for judgement made This was a planned inspection at […]