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EDF Proposes £800M Extension for Sizewell B Reactor

1/21/2026

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Summary

Story summary

EDF Energy announced that extending Sizewell B is technically feasible, pending UK government investment.
Sizewell B, on the North Sea coast in Suffolk, generates nearly 1.2 gigawatts and is the UK's only pressurized-water reactor.
The UK faces a potential electricity gap as many advanced gas-cooled reactors near the end of their life.
EDF estimates extending Sizewell B could require £800 million, with a commercial model still under discussion.

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Story summary

EDF Energy announced that extending Sizewell B is technically feasible, pending UK government investment.
Sizewell B, on the North Sea coast in Suffolk, generates nearly 1.2 gigawatts and is the UK's only pressurized-water reactor.
The UK faces a potential electricity gap as many advanced gas-cooled reactors near the end of their life.
EDF estimates extending Sizewell B could require £800 million, with a commercial model still under discussion.