Sizewell B to operate until 2055 under first nuclear CfD agreement signed by UK and EDF

The UK government and French energy giant EDF have signed a Heads of Terms agreement to extend the operational life of the Sizewell B nuclear power plant in Suffolk by 20 years, allowing the 1.2GW facility to run until 2055. The deal marks the first time a nuclear station has been supported through a regulated Contract for Difference (CfD), a fixed-price mechanism previously used for renewables, according to multiple outlets.

"Britain's most recently completed nuclear power plant will continue generating electricity until 2055 after the government granted the power plant, which was first synchronised with the National Grid in 1995, a 20-year life extension."

The GuardianSizewell B nuclear power plant granted a 20-year life extension

The Guardian noted that Sizewell B was due to shut within the next decade, but the extension pushes its total lifespan to 60 years, helping meet the UK's growing demand for low-carbon electricity.

"This agreement is part of the UK's broader strategy to secure long-term, low-carbon energy generation and enhance energy independence."

The deal, also reported by Reuters and The Financial Post, involves significant investment in maintenance and potential upgrades to ensure safety and efficiency. The CfD structure provides revenue certainty for the plant's continued operation.

Centrica, which holds a 20% stake in Sizewell B, welcomed the agreement, according to The Energy St. The Heads of Terms were signed by the UK government and EDF, with energyvoice.com describing the move as a "government u-turn" after energy price shocks prompted a shift toward fixed-price contracts for nuclear power. The extension is seen as a cornerstone of the UK's strategy to bolster homegrown clean energy and reduce reliance on imported fossil fuels.

energyvoice.comGovernment u-turn as Sizewell B is first nuclear plant to get CfD