Arabelle Solutions has secured a major contract to supply two complete turbine islands for the Sizewell C nuclear power plant in the UK, jointly capable of producing 3.2 GW of low-carbon electricity. The agreement includes the delivery and installation of the turbine islands, marking the second deployment of this technology in Britain after Hinkley Point C in Somerset.
Each turbine hall at Sizewell C will feature an Arabelle steam turbine with a 75-inch last stage blade and a 1.7 GW GIGATOP generator, along with heat exchangers, pumps, and auxiliary equipment. Each shaftline will measure around 70 metres and consist of high-, intermediate-, and low-pressure modules in addition to the generator.
A subsidiary of EDF Group, Arabelle Solutions is replicating the proven design from Hinkley Point C to reduce design time, standardise components, and ensure on-schedule delivery.
Catherine Cornand, CEO of Arabelle Solutions, said: “Our world-class turbine island technology for Sizewell C will play a key role in delivering low-carbon electricity to millions of UK consumers. We are also committed to developing workforce training and skills that will sustain the UK’s nuclear sector for generations.”
At a signing ceremony in London, Nigel Cann, Joint Managing Director of Sizewell C, called the deal a “significant milestone” for the project, noting that the two turbines will ultimately produce enough energy to power six million homes.
Beyond equipment design and installation, Arabelle Solutions will maintain and optimise the turbine islands, extending lifecycle performance. Cedric Couffignal, Executive Vice President for New Build, said the turbines will integrate lessons learned from Hinkley Point C to achieve the best possible output and efficiency.
Preliminary construction work at Sizewell C began in early 2024. The project will employ nearly 8,000 people at peak construction and support tens of thousands of jobs across the UK supply chain. Once operational, Sizewell C will deliver reliable, low-carbon electricity for at least 60 years.
