EDF to build €100 million heat-exchanger factory for EPR2 reactors

EDF put nearly €100 million behind a new factory in Chalon-sur-Saône that is meant to do more than add industrial capacity. The site is aimed squarely at one of the long-lead constraints in the EPR2 programme: the turbine-hall heat-exchange equipment that has to arrive on time if reactor delivery is going to move from policy ambition to repeatable fleet construction.

Arabelle Solutions, EDF’s subsidiary, will build the 20,000-square-metre plant on the former Nordéon industrial site, across roughly 7 hectares. The company said the factory will make moisture separator reheaters, along with high- and low-pressure heaters, and that first equipment manufacturing is scheduled to begin in 2030. Arabelle Solutions says the site will be able to supply all of that equipment for one nuclear power plant each year, a capacity claim that matters because the industrial chain, not just licensing or financing, often determines whether a reactor programme stays on schedule.

The investment was announced during a visit to the site by Maud Bregeon, France’s minister delegate for energy, and Sébastien Martin, minister delegate for industry, alongside EDF and Arabelle Solutions leadership. EDF said the project will create about 160 local jobs by 2030. More importantly for the national buildout, the factory is tied directly to the six planned EPR2 reactors in France and to up to eight additional potential EPR2 units, while also serving new-build projects abroad.

That link turns the Chalon-sur-Saône project into a supply-chain signal. EDF is not only talking about six reactors at Penly, Gravelines and Bugey; it is also expanding the manufacturing base needed to feed a standardized programme. For a fleet that has to avoid the stop-start pattern of one-off megaprojects, a dedicated source of heat exchangers is the kind of upstream investment that can lower procurement risk, shorten coordination loops and make serial construction more realistic.

The Chalon move also fits into a wider industrial rebuild around Arabelle Solutions. EDF has already announced earlier investment at the Belfort site, and the two projects together point to a broader effort to restore French nuclear manufacturing depth. In practical terms, that means France is trying to secure the components that sit between reactor design and concrete on site, a step that could matter as much to delivery dates as any headline about new units themselves.