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 Second Sustainability Report

Published on 6 July 2026, Sizewell C’s second Sustainability Report highlights the progress made across the project since our first report was published in October 2025.

It provides an important temperature check on the project, showcasing how we’re delivering infrastructure differently and creating lasting benefits for local communities, the environment, jobs, skills and economic growth.

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 2025/26

    Sizewell C is continuing to demonstrate how major infrastructure can deliver lasting social, economic and environmental value for the UK.

    Our second Sustainability Report is an important temperature check on our project, highlighting the progress we’ve made over the past year and our commitment to delivering infrastructure differently.

  • Annual Report & Accounts 2025/26

    Our latest Annual Report and Accounts reflects the progress we’ve made over the past year and our ambition to set a new standard for nuclear development in the UK.

  • 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 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

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Latest news

General News

Second Annual Sustainability Report reveals progress on delivering environmental, social, and economic benefits

Just under £5bn now spent with over 1,000 UK suppliers, including £1.35bn across the East of England More than 53,000 tonnes of recycled concrete aggregate from Sizewell A and Sizewell B were...

Local Community

Life-changing programme, supported by Sizewell C, opens doors to work and education

Beyond Boundaries helps young people secure jobs, apprenticeships and university places Innovative programme delivered by Sizewell C’s social partner, ISCRE Second cohort to start later this year A pioneering programme backed by...

Supply Chain

Jon Loveday appointed Chief Commercial Officer of Sizewell C

Sizewell C Ltd has announced the appointment of Jon Loveday as Chief Commercial Officer (CCO) to strengthen the company’s executive team as construction activity in Suffolk accelerates and the project continues to...

Jobs

Sizewell C careers fair attracts over 400 jobseekers in Ipswich

Sizewell C and around 20 supply chain partners showcase thousands of jobs and training opportunities Event forms part of a wider programme of Sizewell C careers fairs held across Suffolk Sizewell C...

Jobs

Sizewell C careers fair in Ipswich to showcase thousands of jobs and opportunities

Fair takes place at the University of Suffolk on Thursday 25 June Event brings together Sizewell C and around 25 of its supply chain partners Sizewell C has already pledged to deliver...

Local Community

Leiston to host free open-air Screening of Paddington in Peru, supported by Sizewell C

Showing marks 50 years since the Town Council saved Leiston Film Theatre    Film being shown at Victory Road Recreational Ground on Saturday 1 August  Event supported by Sizewell C, Leiston Film Theatre, Leiston-cum-Sizewell Town Council, Long Shop Museum, and...

Local Community

New Sizewell C and Ipswich Town Foundation partnership to support hundreds of young people in the region

Sizewell C becomes official outreach partner of Ipswich Town Foundation   Partnership will create new outreach and education opportunities for Leiston and Ipswich  Ipswich Town’s Premier League stars set to educate and inspire young...