Sizewell C

Located on the East Suffolk coast, Sizewell C will supply power to 6 million homes and generate electricity for 60 years, boosting the UK’s energy security and providing thousands of jobs.

The Civil Works Alliance (CWA) is a partnership between Sizewell C, Laing O’Rourke, Balfour Beatty, and Bouygues Travaux Publics, forming one collaborative delivery team to deliver the main civil works at Sizewell C.

Sizewell C will see the creation of a 3.2 Gigawatt nuclear power station on the East Suffolk coast to provide reliable baseload low-carbon electricity.

The project is being built alongside Sizewell A and B, taking advantage of existing infrastructure and continuing a proud legacy of low-carbon energy generation on the Suffolk coast.

The Civil Works Alliance scope

• The alliance is responsible for delivering the following infrastructure:
• Enabling Works & Earthworks
• Marine & Tunnelling Works
• Main Civil Works (Nuclear Island, Conventional Island, Heat Sink and Balance of Plant)
• Ancillary Works & Permanent Roads and Networks (PRN)

Driving efficiency with smart replication

The experience we have gained at Hinkley Point C (HPC) will power the delivery of Sizewell C, which will replicate HPC’s design while incorporating lessons learned to drive innovation and unlock efficiencies.

A key example is our advanced reinforcement manufacturing facility at Avonmouth, where precision-engineered nuclear-grade reinforcement cages are manufactured off site. At HPC this manufacturing solution has reduced on-site hours by 53 per cent for the equivalent scope.

The off-site construction practices and manufacturing-level precision being achieved at HPC are only a preview of what we plan to integrate into the workflow at Sizewell C.

Key Facts

• Sizewell C will supply electricity to the equivalent of six million homes for at least 60 years
• The project will create at least 1,500 Sizewell C apprenticeships will be available over the course of the construction period
• Sizewell C will save 9 million tonnes of carbon emissions each year compared to gas-powered stations
• Sizewell C will generate 70,000 jobs across the UK, extending well beyond Suffolk
• Sizewell C is committed to investing £4.4bn in the East of England over the course of its build