Office for Nuclear Regulation

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Hartlepool intervention plan

Executive summary

Purpose of intervention

This is a planned inspection at EDF Energy Nuclear Generation Limited's (NGL) Hartlepool Power Station, undertaken as part of the planned integrated intervention strategy (IIS) for the Civil Nuclear Reactor Programme (CNRP).

The inspection was performed by the ONR Nominated Site Inspector and a Specialist Structural Integrity Inspector.

Interventions Carried Out by ONR

This intervention included compliance inspections against the following Licence Conditions (LCs):

The intervention was performed in line with ONR's guidance requirements (as described in our technical inspection guides) in the areas inspected.

Explanation of Judgement if Safety System Not Judged to be Adequate

No safety system inspection was undertaken, hence this is not applicable.

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

Considering LC7 we found the licensee's initial response to a fire on gas turbine 6 to be adequate. Following a series of similar occurrences ONR will continue to closely monitor the effectiveness of the improvement plan by examining events relating to fires and work management. We have therefore rated this element of our inspection through the IIS as a 3 (adequate).

We were satisfied with the scope of the structural work proposed for the reactor 1 statutory outage and noted that Graphite, Civil Engineering and Structural Integrity inspectors would attend site during the periodic shutdown to satisfy themselves with the quality of the results produced. On this basis we consider an IIS rating of 3 (adequate) against LC28.

As part of information gathering I (the nominated site inspector) discussed the investment plans for 2015 and emphasised to the station management ageing and obsolescence issues in the following areas: High Pressure Back Up Cooling, Low Pressure Back Up Cooling, Gas Turbines, Pressure Support.

Conclusion of Intervention

We found the licensee's initial response to the gas turbine fire event to be adequate. We have therefore rated this element of my inspection through the IIS as 3 (adequate). The licensee's response to a series of fire events will be tracked against an existing issue.

We have rated the licensee's structural integrity preparations through the IIS as 3 (adequate).

I would expect ageing and obsolescence issues to be addressed in the plant lifetime extensions being prepared for Hartlepool at the end of this year and closed out in the subsequent PSR.

There are no findings from this inspection that could significantly undermine nuclear safety and no change to the planned interventions and inspections of Hartlepool.