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EDF, Centrica near draft deal with UK for Sizewell B nuclear plant extension, Bloomberg News reports - Finance news and analysis from Global Banking & Finance Review
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EDF, Centrica near draft deal with UK for Sizewell B nuclear plant extension, Bloomberg News reports

Published by Global Banking & Finance Review

Posted on June 10, 2026

2 min read

· Last updated: June 10, 2026

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French utility EDF, Centrica eye UK government deal on Sizewell B nuclear plant extension

EDF and Centrica's Investment Plans for Sizewell B Extension

Background and Current Status of Sizewell B

June 10 (Reuters) - France's EDF and UK-based Centrica are prepared to invest about £800 million ($1.07 billion) to extend the lifespan of Britain's Sizewell B nuclear power station to 2055 from 2035, an EDF spokesperson told Reuters on Wednesday.

Sizewell B on the North Sea coast in Suffolk supplies nearly 1.2 gigawatts of electricity to the grid and is the only pressurised-water reactor in the UK.

Negotiations with the UK Government

The French state-owned utility seeks to agree on a framework with the UK government, the spokesperson said.

"Volatility in the energy markets over the past few years has reinforced the importance of securing a suitable model to reduce commercial risks and enable that investment decision," EDF added.

Centrica's Role and Stake in Nuclear Fleet

Centrica has a 20% interest in Britain's existing nuclear fleet through its stake in EDF Energy's UK nuclear generation business, including Sizewell B.

Technical Feasibility and Ongoing Discussions

A life extension for the plant is technically possible, and negotiations were under way with the UK to enable the required investment, EDF's British arm had said in January.

Progress Towards a Draft Deal

Bloomberg News, citing sources, reported earlier that EDF and Centrica were close to agreeing a draft deal with the government to extend the plant's life.

The companies are nearing a heads of terms agreement with the Department for Energy Security and Net Zero, with an announcement expected within weeks, the report said.

Financial Terms and Industry Response

Under the terms being discussed, Sizewell B would receive about £70 per megawatt-hour of electricity generated, Bloomberg added.

Centrica and the UK Department for Energy Security and Net Zero did not immediately respond to Reuters' requests for comment on the report.

Additional Information

($1 = 0.7479 pounds)

(Reporting by Unnamalai L in Bengaluru and Nina Chestney; Additional reporting by Ananya Palyekar and Mrinmay Dey, Editing by Devika Syamnath and Joyjeet Das)

Key Takeaways

  • EDF and Centrica nearing heads‑of‑terms with UK government for Sizewell B life extension to 2055, at ~£70/MWh (Bloomberg/Reuters)
  • £800 million of investment likely to be unlocked, securing ~600 regional jobs and lasting upgrades to the plant’s infrastructure
  • Sizewell B is the UK’s only pressurised‑water reactor (c. 1.2 GW capacity), vital interim baseload as new nuclear (Sizewell C, Hinkley C) comes online

Frequently Asked Questions

What is the significance of the Sizewell B nuclear plant extension?
Extending Sizewell B's life by 20 years will secure energy supply and unlock £800 million in investment for the UK's only pressurised-water reactor.
Who are the main parties involved in the Sizewell B extension deal?
The main parties are EDF, Centrica, and the UK government's Department for Energy Security and Net Zero.
How much will Sizewell B be paid per megawatt-hour under the new agreement?
According to reports, Sizewell B will receive around £70 ($93.69) per megawatt-hour generated.
What is Centrica’s role in the UK's nuclear fleet?
Centrica has a 20% interest in Britain's existing nuclear fleet via its stake in EDF Energy's UK nuclear generation business.
How much electricity does the Sizewell B plant generate?
The Sizewell B plant supplies nearly 1.2 gigawatts of electricity to the UK grid.

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