Egis, a leading global architecture, consulting, construction engineering, operations and mobility services firm, alongside its consortium partners Amentum, SETEC Nucléaire and Tractebel, have secured a contract extension to support in advancing Sizewell C – a nationally critical development set to offer a major boost to the UK’s energy security. The project involves the planning, design and construction of two European Pressurised Reactors (EPRs) on the east coast of Suffolk, advancing the UK’s commitment to a clean and secure energy future.
The ICOSH consortium, comprising Egis, Amentum, SETEC Nucléaire and Tractebel, will apply their nuclear engineering expertise to continue delivering the new reactors to the highest safety and regulatory standards. This latest phase builds on the consortium’s longstanding involvement and expands the scope of work to include detailed civil design for 12 nuclear island buildings – encompassing the reactor, fuel and safeguarding structures – widely regarded as the most technically complex and safety-critical components of any nuclear power station.
The consortium has supported Sizewell C since 2020, drawing on their expertise from Hinkley Point C to deliver replication studies and geotechnical assessments that underpin the entire development. Recently, the consortium has been tasked with designing the common raft and pre-stressing gallery.
Sizewell C will feature two state-of-the-art EPRs using replica designs developed during the construction of its sister plant, Hinkley Point C, where ICOSH was also appointed to deliver the civil engineering designs and geotechnical studies. By adopting a standardised approach, the programme is reducing delivery risks and progressing more quickly towards the UK’s long-term energy goals than would be possible with a reactor design developed from scratch.
