The UK Department for Energy Security & Net Zero (DESNZ) has awarded engineering consultancy Mott MacDonald a contract to deliver technical advisory services in support of government oversight of the Sizewell C NPP. The contract, valued at £3.64-4.84m ($5-6.7m), will run until 30 November 2028.
Mott MacDonald will provide expert advice, guidance and support to enable government to effectively fulfil its oversight roles as shareholder and policy sponsor of Sizewell C during construction of the project. The plant, with two EPR reactors producing 3.2 GWe, will provide 7% of the UK’s total electricity needs and save an estimated 9 million tonnes of CO2.
The government announced the Final Investment Decision (FID) for the £38bn Sizewell C nuclear power project in July 2025 making it the first nuclear power project to reach FID in nearly a decade.
Commenting on the contract, Claudio Tassistro, Managing Director of Energy, UK and Europe, at Mott MacDonald said: “This appointment builds on our long-standing relationship with DESNZ, where we’ve contributed to the delivery of critically important programmes addressing the challenges of the transition to a low-carbon economy. Sizewell C stands as a key initiative for the UK, supporting both the achievement of net zero targets and the nation’s energy security.”
