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The government of the United Kingdom has granted final approval for the Sizewell C nuclear power plant, a £38 billion project designed to strengthen the country’s long-term energy security.
The announcement came on Tuesday after a deal was reached with investors, marking a major step forward for one of Britain’s largest infrastructure undertakings.
Located in eastern England, Sizewell C will be built with funding from a consortium that includes Canadian pension fund La Caisse, British Gas owner Centrica, Amber Infrastructure, and French energy firm EDF.
The UK government remains the project’s largest shareholder.
EDF, which had previously held a 16.2 per cent stake in the project at the end of 2024, confirmed earlier this month that it would now retain a 12.5 per cent interest.
Energy Secretary Ed Miliband welcomed the development, saying, “It is time to do big things and build big projects in this country again. Today, we announce an investment that will provide clean, homegrown power to millions of homes for generations to come.”
The Sizewell C plant has spent nearly a decade in financial uncertainty. It is now expected to begin producing electricity by 2035, helping to fill the gap left by an ageing fleet of nuclear stations.
The renewed push for nuclear energy follows the outbreak of the war in Ukraine, which highlighted the vulnerability of global energy supplies and prompted the UK to reassess its energy strategy.
Sizewell C will sit alongside Sizewell B, which is due to be shut down in 2035, and the already decommissioned Sizewell A. EDF is also constructing Hinkley Point C in southwest England, although that project has faced repeated delays and rising costs.
