France’s EDF and Britain’s Centrica are preparing to invest around £800 million to support a proposed extension of the operational life of the Sizewell B Nuclear Plant, according to an EDF spokesperson. The investment would allow the facility in Suffolk to continue generating electricity until 2055, extending its current planned lifespan by two decades beyond 2035. EDF said discussions are focused on establishing an agreement framework with the UK government that would enable the investment required for the project.
Located on the North Sea coast, Sizewell B delivers nearly 1.2 gigawatts of electricity to the national grid and remains the UK’s only pressurised-water reactor. EDF noted that recent fluctuations in energy markets have highlighted the need for a structure that can limit commercial risks and provide sufficient certainty for long-term investment decisions. The company stated: “Volatility in the energy markets over the past few years has reinforced the importance of securing a suitable model to reduce commercial risks and enable that investment decision.”
Centrica holds a 20% interest in Britain’s existing nuclear fleet through its stake in EDF Energy’s UK nuclear generation business, which includes Sizewell B. Earlier this year, EDF’s UK business said that extending the station’s operating life was technically achievable and confirmed that discussions with the government were underway to secure the investment needed to proceed with the project.
Reports indicated that EDF and Centrica are nearing a draft agreement with the UK government regarding the future of the Sizewell B Nuclear Plant. According to those reports, the companies are close to reaching a heads of terms agreement with the Department for Energy Security and Net Zero, with a formal announcement expected within weeks. The proposed arrangement would provide the framework necessary to advance the life-extension programme and support continued nuclear power generation from the facility over the coming decades.