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.

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.

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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