Reports & Policies

  • 2.6k
    Suffolk construction jobs
  • 70k
    UK jobs supported
  • £4b
    Into the regional economy
  • 6m
    UK homes powered
  • 9m
    Tonnes of CO2 avoided every year of operation

Sizewell C's First Sustainability Report

Published on 29 October 2025, Sizewell C’s first Sustainability Report highlights our dedication to creating a lasting, positive social impact.

At Sizewell C, we’re committed to ensure that the project gives back more than it takes, creating real benefits for people, communities, and the environment.

Read the report to find out more.

Explore the report
Diggers on the Sizewell C site with Sizewell B in the background
Project milestones

What we’ve achieved so far

A look back at the project’s progress and important moments.

1. July 2025
Final Investment Decision

In July, the Government confirmed Sizewell C’s Final Investment Decision, securing full funding for the project.

2. June 2025
Green Light

In June, the UK Government officially gave a green light to the Sizewell C project, confirming £14.2 billion of investment as part of the government’s latest spending review.

3. October 2024
Autumn Budget

The Autumn Budget announces £2.7bn commitment to Sizewell C and says Final Investment Decision will be in the 2025 Spending Review.

4. June 2024
Commitment to Sizewell C

Labour General Election manifesto commits to Sizewell C.

5. May 2024
Regulator grants Nuclear Site Licence to Sizewell C

First nuclear site licence issued by the Office for Nuclear Regulation since Hinkley Point C’s licence in 2012.

6. January 2024
UK Government invests additional £1.3b

The funding will help Sizewell C continue to prepare for full construction.

7. January 2024
Development Consent Order triggered

Green light for formal construction to begin.

8. September 2023
Private investment process begins

The UK Government launches the formal process to raise private investment for Sizewell C.

9. August 2023
£341m government allocation for SZC

This funding allocation is to speed up preparation of site for construction, procurement of key supply chain components, and to expand the workforce.

10. March 2023
Environment permits granted

The Environment Agency grants permits which are required before construction can begin.

11. December 2022
Government invests nearly £700m

The Government agrees to invest in the project becoming a 50% shareholder alongside EDF.

12. July 2022
Development Consent Order approved

Approval of the DCO comes after the Planning Inspectorate says the benefits of the project “strongly outweigh the impacts”.

13. March 2022
New nuclear funding legislation passed

MPs vote overwhelmingly in favour of legislation to introduce Regulated Asset Base (RAB) funding for nuclear.

14. January 2022
Government invests £100m

The UK Government agreed a land option agreement with EDF to fund further development of the project.

15. May 2020
Application for planning permission submitted

Our application for a Development Consent Order (DCO) was more than 50,000 pages long.

16. October 2012
First of four rounds of local consultation begins

Our consultations in the region led to engagement with more than 10,000 people and organisations.

Reports

  • Annual Sustainability Report 2024/25

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

    Our first-ever Annual Sustainability Report, published in October 2025, sets out the progress we’ve made and the ambition driving the UK’s newest nuclear power station.

  • Annual Report & Accounts 2024/25

    Our latest Annual Report and Accounts sets out Sizewell C’s vision to lead the way on nuclear – defining what good leadership looks like for the UK’s energy future.

    Together, these foundations will help ensure Sizewell C delivers secure, affordable energy and lasting benefits for the UK economy.

Policies

  • Tax Strategy

    Our Tax Strategy outlines our commitment to responsible tax practices. It details how we align our tax obligations with business activities, ensuring transparency, compliance, and contributions to the UK economy.

  • Modern Slavery & Human Trafficking Statement 2024

    We are committed to respecting human rights and opposing all forms of modern slavery and human trafficking.

    Our 2024 statement sets out the steps we are taking to prevent and address these risks across our operations and supply chain, reinforcing our commitment to responsible and ethical business practice.

Other Documents

  • Corporate Code of Conduct

    Our Code of Conduct reflects the mission and purpose at the heart of Sizewell C. It’s a practical guide to help us live our values in everything we do.

    The Code applies to everyone working for, or on behalf of, Sizewell C – including employees, consultants, embedded contractors, temporary workers such as apprentices and secondees, and other service providers.

  • Lifecycle Carbon and Environmental Impact Analysis

    We’ve analysed the lifecycle impacts of Sizewell C, our 3.2-gigawatt power station in Sizewell, Suffolk. You can read the full Lifecycle Carbon and Environmental Impact Analysis report below.

     

To reach our Investor Relations team at Sizewell C, please contact us by email.

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Latest news

General News

Sizewell C surpasses 1,000 UK suppliers

Over 1,000 UK suppliers have now benefitted from work on the nuclear power project Sizewell C has so far delivered over 70% of its construction value to UK suppliers Project’s spend is...

General News

Sizewell C signs new partnerships with local colleges to boost skills and jobs

Eastern Education Group becomes third and final education provider to agree fresh MOU Renewed partnerships will boost training and career opportunities at Sizewell C Suffolk New College and East Coast College agreed...

General News

Suffolk colleges to expand training facilities thanks to Sizewell C funding

East Coast College and Suffolk New College awarded grants to expand training and apprenticeship provision Investment to support construction of Sizewell C and other major infrastructure projects Training to cover groundworks, civil...

General News

Sizewell C signs Power of Youth Charter, championing youth voice and opportunity

New pledges include giving young people a voice in key decisions and empowering them to lead social action Charter follows wide-ranging programme of support already in place for young people across East...

General News, Transport

Sizewell C and ScottishPower join forces to streamline road improvements in East Suffolk

Collaboration will reduce road congestion, save on costs, and minimise environmental impact as development activity increases Agreement demonstrates how major infrastructure projects can work together Co-ordinated approach welcomed by local politicians Two...

General News, Site

Sizewell C surpasses 2,000 on-site workers milestone in Suffolk

Around 8,000 people will work on site at peak construction, with a third coming from East Anglia Both park and ride sites will be fully open in 2026 – serviced by zero...

General News, Local Economy

Sizewell C injects nearly £1bn into East of England as construction hits two-year milestone

Major progress made since Development Consent Order was triggered in 2024  Almost 2,000 workers now on site with over 100 apprentices  Around £3bn delivered in contracts to over 400 British suppliers  Planning application submitted for College on...