The UK’s largest operational nuclear power station, Sizewell B in Suffolk, has been granted a 20-year extension to continue generating electricity until 2055. This extension, announced by the government, will allow Sizewell B to contribute approximately 3% of the country’s total electricity supply. The station, owned by French energy company EDF with a 20% stake held by British Gas parent company Centrica, will receive £70.50 per megawatt hour of electricity produced from 2035, based on 2025 prices.
According to officials, this agreement will lower the costs of the UK’s energy system, shield consumers from fluctuations in fossil fuel markets, power 2.5 million households with clean energy, and preserve 900 skilled jobs in Suffolk. The government highlighted that if Sizewell B had operated under a similar pricing structure during the price surge triggered by Russia’s invasion of Ukraine, consumers could have saved approximately £2 billion.
Energy Secretary Ed Miliband emphasized the importance of nuclear power for energy security and the necessity of clean power production. Chancellor Rachel Reeves praised the agreement, stating that it secures clean energy for millions of homes until 2055 and shows confidence in the skilled workforce in Suffolk. The Mirror previously reported on how Sizewell B was still using Russian-sourced uranium post the Ukraine invasion.
Additionally, the government is supporting projects like the construction of Britain’s first small modular reactors in Anglesey and the development of Sizewell C alongside Sizewell B, marking a new era in nuclear energy. Chris O’Shea, Chief Executive of Centrica, expressed delight in the extended role of Sizewell B in the UK’s energy landscape, highlighting its contribution to reliable, carbon-free electricity supply and job security.
Sam Richards, chief executive of Britain Remade, endorsed the extension of Sizewell B’s operational life as a cost-effective solution compared to renewable energy price caps. The station, operating since 1995, has delivered substantial clean energy output, showcasing its value in the energy mix. Richards emphasized the potential for cost-efficient nuclear projects in the future and called for continued focus on nuclear energy legislation to ensure a smooth transition between governments.
