Sizewell C has secured planning permission for a major tunnel production facility in Avonmouth, which is expected to support up to 400 jobs and strengthen the UK’s nuclear supply chain.
The facility will manufacture pre-cast concrete segments and tunnel heads for the project’s marine shafts.
Once produced, the components will be transported to Suffolk by rail and sea, supporting Sizewell C’s target of moving at least 60% of construction materials using these modes and reducing HGV traffic on local roads.
The development, around 10 kilometres north-west of Bristol, will expand an existing site previously used to produce tunnel components for Hinkley Point C.
Nigel Cann, CEO of Sizewell C, said: “Opening this facility and supporting hundreds of jobs at Bristol Port shows once again that Sizewell C is delivering growth and opportunities right across the UK.”
Construction of supporting infrastructure, including concrete batching plants, cranes, storage areas and offices, is already underway. Around 55 people are currently employed on the site, alongside 86 supply chain workers.
An employment and skills programme will also promote apprenticeships, training and construction and engineering careers, with a focus on opportunities for local people.
Sizewell C says almost £5 billion has already been spent with more than 1,000 UK suppliers.
Production is expected to begin in 2028, subject to planning conditions.
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