Hinkley Point C, the prominent nuclear power station project in Somerset, has been issued an improvement notice by the Office for Nuclear Regulation (ONR) due to concerns over the monitoring and management of tower cranes on site. The action follows the discovery of critical component failures during routine pre-use checks in February 2025.
Specifically, a pin connecting two mast sections had failed, and cracks were found within a mast section of a tower crane. These issues were reported under the Reporting of Injuries, Diseases and Dangerous Occurrences Regulations (RIDDOR). Thankfully, the problems were identified before any crane collapse or malfunction occurred, and no injuries were reported.
The notice was served to NNB Generation Company (HPC) Ltd (NNB GenCo), the principal contractor and site licensee responsible for construction. An ONR investigation found that NNB GenCo failed in properly planning, managing, and monitoring the maintenance and condition of tower cranes, as well as coordinating health and safety requirements during the construction phase.
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John McKenniff, the ONR Principal Inspector, emphasized the importance of the notice: “Although no crane failure or collapse occurred, this improvement notice ensures that steps are taken to prevent similar incidents in the future. We will continue to monitor NNB GenCo’s actions and may take further measures if necessary.”
The incident is categorized as a conventional health and safety matter, not affecting nuclear safety standards. NNB GenCo is required to comply with the notice’s stipulations by 30 June 2025.
A spokesperson for Hinkley Point C reaffirmed their commitment to safety: “Safety is our top priority. We have already begun addressing the identified issues and are working closely with the ONR, trade unions, and contractors to maintain and enhance high safety standards across the site.”
Hinkley Point C, operated by EDF, aims to supply low-carbon electricity to six million UK homes. However, the project has faced significant challenges, including cost overruns and schedule delays. Initially estimated at £18 billion, the final expenditure could reach £35 billion, according to EDF. Despite this, the project continues to generate employment and local economic benefits, with plans to create 3,000 jobs and over £5 billion spent with South West companies. At peak construction, around 15,000 workers are expected on site.