Lead the Way on Nuclear is our vision – Sizewell C aims to define what good leadership for the nuclear industry and British infrastructure looks like and deliver on it. We understand the feats of organisation, logistics, collaboration and imagination that building nuclear requires.

We are building for the next-generation – for their home grown energy, energy price stability and low carbon power in abundance. We also want to set the benchmark for maximising, long-lasting social value as we build and demonstrate how smart collaboration can work for the benefits of communities, locally, regionally and nationally.

We will deliver secure and clean energy, long-term benefit for the UK economy and societal value for future generations.

  • 70,000
    UK jobs supported
  • 70%
    UK construction spend
  • £4b
    Into the regional economy
  • 67%
    Female Executive Team

A Pioneering, Integrated and Socially Responsible Approach

We have four strategic aims which serve as source of inspiration and direction, shaping our company strategy, guiding decision-making and providing a roadmap of success to deliver our vision.

Attract

Attract, support and nurture outstanding talent and expertise in our people, and develop a centre of excellence for the nuclear industry in the UK.

Build & Operate

Set the model for the building and operation of a power station – on time, on budget and with relentless focus on quality, safety and the environment.

Invest

Develop genuine partnerships with our neighbours, suppliers and investors to create lasting economic and social value, pioneering a new integrated approach to building infrastructure in the UK.

Promote

Ensure that the social, economic, environmental and energy security benefits of our work and of the wider nuclear industry are more widely understood and celebrated nationally.

Company Values

Our company values guide us through everything we do and how we deliver against our vision and strategic aims.

Safety and Quality First

The safety of our employees, suppliers, and the public is of upmost importance. All our activities, whether on site, in our offices or the transportation of materials, must be carried out to the highest standards. This is why we will always put safety and quality first.

 

Read the report

Sustainability report

Sizewell C is already showing how major infrastructure can deliver lasting social, economic and environmental value for the UK.

Our first Annual Sustainability Report, published in October 2025, outlines progress and ambition across five key themes: Jobs, Skills & Economic Growth, People, Communities, Nature & Environment, and Climate.

With 1,500 people on site, 400 UK suppliers, and £2.8 billion in contracts awarded – including £126 million to Suffolk businesses – the project is driving opportunity and growth nationwide.

Final Investment Decision

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%.