Business
French start-up Stellaria raises €23 million for its molten-salt nuclear reactor
Stellaria, a French start-up originating from CEA and Schneider Electric, has announced that it has raised a total of €23 million to develop its fast neutron molten salt nuclear reactor by 2035. This new round of funding comes two years after a successful first round in 2023.
About this update from Schneider Electric Se
[{"type":"text","content":"GRENOBLE, France, July 24, 2025 /PRNewswire/ -- Stellaria, a French start-up originating from CEA and Schneider Electric, has announced that it has raised a total of €23 million to develop its fast neutron molten salt nuclear reactor by 2035. This new round of funding comes two years after a successful first round in 2023.","length":324,"tagName":"p"},{"type":"image","alt":"French start-up Stellaria raises €23 million for its molten-salt nuclear reactor","displaySize":"","headline":null,"caption":"French start-up Stellaria raises €23 million for its molten-salt nuclear reactor","className":"","disableSlideshowImg":false,"size":{"original":{"width":142,"height":200,"url":"https://media.zenfs.com/en/prnewswire.com/23e4905e9e816fdd75dee575da67eb53"},"resized":{"url":"https://s.yimg.com/ny/api/res/1.2/mLk1ZaFi48j3yXu7FpSjMA--/YXBwaWQ9aGlnaGxhbmRlcjt3PTIxMDtoPTI5NjtjZj13ZWJw/https://media.zenfs.com/en/prnewswire.com/23e4905e9e816fdd75dee575da67eb53","width":142,"height":200}},"href":"https://mma.prnewswire.com/media/2737585/Stellaria_Nuclear_Reactor.pdf?p=original","hrefExternal":true,"rel":"nofollow"},{"type":"text","content":"The round was co-led by US impact fund At One Ventures and Supernova Invest, alongside Stellaria's historical investors, including CEA Investissements, Schneider Electric, Exergon, and Technip Energies.","length":206,"tagName":"p"},{"type":"text","content":"In addition to the €10 million in non-dilutive financing obtained by Stellaria through its success in the France 2030 'Innovative Reactors' call for projects, this funding will be used to finance all the technical and regulatory studies necessary to establish a first molten-salt facility capable of sustaining a fission reaction, scheduled for 2029.","length":358,"tagName":"p"},{"type":"text","content":"Founded in 2023, Stellaria is developing the Stellarium, a fourth-generation molten-salt nuclear reactor capable of fully regenerating its fuel during operation. It will therefore be self-sufficient for more than 20 years, while reducing long-lived nuclear waste (minor actinides). The first production unit is expected to be offered for commercial deployment by 2035. Competitive, safe and flexible, the Stellarium will also help to decarbonise energy production, whether for industry or the grid. By replacing fossil fuel sources with Stellar...