Skip to content

Hinkley Point C - Inspection ID: 52651

Executive summary

Date(s) of inspection:

  • January 2024

Aim of inspection

The aim of the inspection was to inspect NNB Generation Company (HPC) Ltd's (NNB GenCo) arrangements for compliance with Licence Condition 19 (LC19), construction or installation of new plant, in relation to civil engineering construction assurance. LC19 requires that where the licensee proposes to construct or install any new plant, which may affect safety, the licensee makes and implements adequate arrangements to control the construction or installation.
The objective of the inspection was to obtain evidence in relation to the adequacy of NNB GenCo’s arrangements for the control of the construction of the unit 1 safeguard buildings. The particular focus of the intervention was on the implementation of arrangements to ensure conformant construction of civil engineering elements, in accordance with the design intent and safety case.

Subject(s) of inspection

  • LC19 - Construction or installation of new plant - Rating: Green

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

The evidence sampled provided confidence that the implementation of arrangements for civil engineering construction of the unit 1 safeguard buildings (HL) was adequately controlled. Furthermore, that where sampled, construction of civil engineering elements was found to align with the design intent and the safety case. I also judge that the civil engineering contractor and sub-contractor's arrangements in relation to construction of the nuclear safety significant safeguard buildings are being implemented and are aligned with relevant good practice.

This inspection highlighted no significant regulatory issues.

A small number of minor observations were made.

On the basis of the evidence sampled, and in recognition of progress to date, I was satisfied that the arrangements in place comply with LC19.


On the basis of the evidence sampled, I judge that NNB GenCo has implemented corporate arrangements in compliance with LC19 (construction or installation of new plant). Upon consideration of the ONR guidance in relation to inspection ratings, I judge that a rating of Green (no formal action) is appropriate.