Office for Nuclear Regulation

Heysham - Emergency Arrangements review

Executive summary

Purpose of Intervention

This was planned joint intervention at EDF Energy Nuclear Generation’s (EDF’s) Heysham 1 and Heysham 2 power stations in line with the ONR’s inspection programme contained in the Heysham 1&2  Intervention Strategy(IIS) for 2018/19.

Interventions Carried Out by ONR

Along with the nominated site inspector for Heysham 1. I, the nominated site inspector, Heysham 2 performed a joint inspection to evaluate compliance with nuclear site licence condition (LC) 11 – Emergency Arrangements, which is an applicable provision of the Energy Act 2013. This was achieved by reviewing the emergency arrangements for both stations including the development of capability maps.

I also undertook a number of engagements with the licensee staff covering the following topics:

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

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

Emergency Arrangements Review – Licensee’s self-assessment for the adequacy of its emergency arrangements and their implementation was reviewed. The self-assessment highlighted many areas of good practice and improvements over the previous years. This included a comprehensive set of emergency exercises, adequate performance at the Level 1 demonstration and positive feedback from the World Organisation of Nuclear Operators (WANO).

Capability Maps Update – Although the maps contained relevant information, the Heysham 2 capability map had not been updated since early 2017. The capability map for Heysham 1 was up to date and adequate. The licensee agreed that since large parts of the maps contain generic safety case information, this can be provided more consistently by the licensee’s corporate emergency planning teams. To this end, a workshop is to be arranged by the licensee to support the update of the generic aspects of the capability maps. The station specific elements will then be delegated to the relevant emergency planning engineers based on site.

Overall, I am content that the licensee has made and implemented adequate arrangements to deal with an emergency on site. The performance over the past year has been satisfactory and the self-assessment as identified a number of reasonable improvements that are being progressed in a timely manner. I am, therefore, content that an IIS rating of green – adequate standard is appropriate for compliance against LC11 – Emergency Arrangements for the areas sampled. As this was a joint review for both stations, the judgements apply equally for both.

Conclusion of Intervention

There are no findings from this inspection that could significantly undermine nuclear safety.  At present, no additional regulatory action is needed over and above the planned interventions at Heysham 1 and 2 Power Stations.