EDF Energy said in early February 2026 that it will lead an £800 million national investment programme to support a potential 20‑year life extension for the Sizewell B nuclear power station. EDF plans to expand its existing Gablecross/South Marston campus in Swindon, Wiltshire, to serve as the technical and administrative project hub for that programme and says the move is expected to create hundreds of new high‑skilled roles in the town. The planned extension of Sizewell B’s operating life to about 2055 is contingent on a final commercial agreement with the UK government.
The expansion will be carried out at EDF’s South Marston campus. EDF and Reuters have reported that the £800 million figure relates to the investment needed to fund technical upgrades and safety work at Sizewell B in Suffolk to enable the longer operational life — while the Swindon site will host the programme’s project‑management and administrative functions.
EDF expects recruitment for the first phase of new roles to begin in Q2 2026 (April–June). The new staff will manage the national programme from the Wiltshire office; EDF has previously used its Swindon presence as a support centre for other major projects.
Local leaders welcomed the announcement and said it strengthens Swindon’s role in green technology and the nation’s energy security. The investment also comes amid other large local projects, including Panattoni’s redevelopment of the former Honda site in South Marston, which local reporting has valued at around £800–£900 million.
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