Office for Nuclear Regulation

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EDF Torness, Theme 1 - Control and Supervision, and Regulatory Issues Review

Executive summary

Purpose of Intervention

The purpose of this intervention was to undertake compliance inspections at EDF Energy Nuclear Generation Limited's Torness power station in line with the ONR's planned inspection programme described in the Torness Integrated Intervention Strategy (IIS) for 2017/18.

The intervention was a themed inspection evaluating how the licensee controls and supervises operations and maintenance activities undertaken on the station, with specific emphasis on the interfaces between operations and maintenance. Such inspections are being carried out by ONR at all operating reactor stations. At Torness there was a further purpose which was to provide evidence and feedback on its Maintenance Improvement Programme.

Interventions Carried Out by ONR

The intervention comprised meetings, interviews, plant tours and review of documents with the aim of examining compliance with Licence Conditions 12, 23, 24, 25, 26 and 28 and Management of Health and Safety at Work (MHSW) Reg 5 in relation to the following:

A further focus was the Torness Maintenance Improvement Plan, which aimed to improve the leadership, supervision and culture of maintenance staff.

I also record routine regulatory interactions.

Explanation of Judgement if Safety System Not Judged to be Adequate

Not applicable - no system based inspections were performed during this intervention.

Key Findings, Inspector's Opinions and Reasons for Judgements Made

On the basis of our sample we found that Torness complied with the relevant conditions of the Licence and MHSW regulations and all were rated ‘Green - no formal action'. We also found that there was clear evidence of improvements in the control, supervision and culture of maintenance work over the previous 12 to 18 months.

Conclusion of Intervention

The findings were presented to the licensee at the close of the inspection. We made advisory recommendations for the licensee to consider:

We also made a number of minor observations concerning further potential improvements that could be made.

There were no findings from this inspection that could significantly undermine nuclear safety or which would result in changes to the planned interventions and inspections of Torness Power Station.