Office for Nuclear Regulation

Heysham 1 – Inspection ID: 52877

Date(s) of inspection

  • October 2023

Executive summary

Aim of inspection

The aim was to provide ONR with regulatory confidence in the implementation of the arrangements established for the HYA reactor 1 2023 SO (027). This was a planned intervention and part of the 2023/2024 ONR integrated intervention strategy for operating reactors.

Subject(s) of inspection

  • LC28 – Examination, inspection, maintenance and testing – Rating: Green

Key findings, inspector’s opinions and reasons for judgement made

The inspection activities undertaken at EDF Energy NGL Heysham 1 (HYA) focused on the arrangements that have been established for the completion of the HYA reactor 1 SO (027) and their implementation. The aim was to provide ONR with regulatory confidence in the implementation of the arrangements established for the HYA reactor 1 SO (027). This inspection considered the electrical engineering (EE) structures, systems and components (SSCs) that are being maintained during the HYA reactor 1 SO (027) in compliance with licence condition 28.

From the sample inspected, EDF Energy NGL adequately demonstrated the implementation of the arrangements established for the HYA reactor 1 SO (027) activities, including inspection and observation of the actual condition of the station’s electrical SSCs, progress against the station’s reactor 1 SO (027) plan, management of emergent issues and completion of work order cards, in accordance with licence condition 28

Conclusion

On the basis of the evidence sampled at the time of the inspection:

For the Reactor 1 2023 Statutory Outage Activities inspection, I judge that EDF Energy NGL were able to adequately demonstrate the implementation of the arrangements in compliance with licence condition 28 at HYA. Noting ONR guidance on inspection ratings, it is my opinion that an inspection rating of green – no formal action is merited here. Based on this inspection there were no issues identified from electrical work activities which would prevent ONR granting consent for HYA to return to service at this point.