Sizewell C is a new nuclear power station on the East Suffolk coast, which will supply 6 million homes with low-carbon electricity.
Nuclear energy is needed as it doesn’t depend on the weather and will reduce costs for consumers. Sizewell C will play a key role in the energy transition and will be one of the biggest clean energy projects in the UK.
Since January 2024, when Sizewell C triggered its Development Consent Order (DCO) — paving the way for formal construction of the new 3.2GW nuclear power station on the Suffolk coast — we’ve been making rapid progress.
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On Tuesday 10 June, the Government and Chancellor Rachel Reeves announced a landmark £14 billion investment to build Sizewell C — signalling the start of a new era for nuclear power in the Britain.
This marks the first British-owned nuclear power station to be confirmed in over three decades.
Watch as Jack Abbott, MP for Ipswich, shares what this milestone means for his community.
On Tuesday 22 July 2025, the government confirmed private investment in Sizewell C — marking our Final Investment Decision and securing full funding for the project.
The government will take a 44.9% stake, becoming the single largest shareholder and ensuring the public shares directly in the benefits of the project.
Private investors include EDF, with a 12.5% stake announced earlier in July, La Caisse holding 20%, Centrica with 15%, and Amber Infrastructure with an initial investment of 7.6%.
To meet the UK’s future energy needs, we’ll need around four times more low-carbon power than we use today.
In addition to the rapid growth of renewables, new nuclear is essential to provide reliable baseload electricity — keeping the system stable and helping to keep costs down.
The European Pressurised Reactor (EPR) reactor design has been approved by the UK’s nuclear regulator, the Office for Nuclear Regulation (ONR). This means it satisfies Britain’s high standards for nuclear safety.
The team at the UK EPR Design Centre in Bristol are industry experts bringing experience from a range of nuclear projects. Watch our videos to see how they are supporting HPC and SZC.
