The ICOSH consortium, comprising Egis, Amentum, SETEC Nucléaire and Tractebel, has secured a contract extension at the UK Sizewell C NPP. The project involves the planning, design and construction of two European Pressurised Reactors (EPRs) on the east coast of Suffolk.
The consortium will apply its nuclear engineering expertise to support EDF Energy in advancing Sizewell C, delivering the new reactors to the highest safety and regulatory standards. This 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.
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 Hinkley construction, 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.
“Sizewell C builds directly on the experience and innovation developed during Hinkley Point C, giving us the opportunity to deliver with greater efficiency and reduced cost, compared with the development of a new reactor design,” said Tilly Spencer, Technical Director for Sizewell C at EDF Energy. “Having continuity across the supply chain is key to maintaining momentum, and we’re pleased to have Egis and the ICOSH consortium involved once again to help us tackle this complex and critical part of the programme.”
Francois-Xavier Basselot, Managing Director for Europe & Africa, Energy & Sustainable Cities at Egis said: “The successful delivery of the initial scope laid a strong foundation, showcasing the expertise and dedication of our teams across the consortium. This extension is a recognition of that success and allows us to deliver even greater value as the project progresses.”
Once completed, Sizewell C will generate enough electricity to power six million homes, equivalent to 7% of the UK’s energy needs, and is expected to operate for 60 years.
