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- The fuel itself:<\/strong> Salt simplifies the fuel manufacturing process, ensures the preservation of EDF<\/a>\u2019s plutonium volume\/quality through isogeneration, and allows for thorium and U235 versions.<\/li>\n<\/ul>\n\n\n\n
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- Safety:<\/strong><\/strong> : Four safety barriers<\/a> limit exposure to only 1 mSv at closure, with a demonstration of enhanced safety in scenarios involving a hypothesized breach of the first barrier without causing major incidents. The reactor also features a low-pressure, natural convection system.<\/li>\n<\/ul>\n\n\n\n
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- Security<\/strong><\/strong> prise en compte d\u00e8s la conception<\/strong> : un sel combustible demeurant plus de 20 ans en r\u00e9acteur, limitant radicalement le nombre de transports de mati\u00e8res radioactives, et la disposition souterraine de notre r\u00e9acteur.<\/li>\n<\/ul>\n\n\n\n
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- Business model <\/strong>Strong industrial partners like Technip Energies<\/a>, Schneider Electric<\/a> or Orano<\/a>, a business model that optimizes financial requirements before initial sales; and structurally low reactor costs due to its compactness-to-efficiency ratio. Its load-following capability is ideal for replacing fossil-fuel plants currently serving this role.<\/li>\n<\/ul>\n\n\n\n
![\"\"](\"https:\/\/www.stellaria.fr\/wp-content\/uploads\/2024\/11\/english-HC-1.jpg\")
<\/figure>\n\n\n\nAreas for Improvement Identified:<\/strong><\/p>\n\n\n\n
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- The fuel <\/strong>The focus here is on determining the State\u2019s strategy regarding increasing production capacities of civil plutonium for fast neutron reactors.<\/li>\n<\/ul>\n\n\n\n
From our side, and to alleviate congestion at La Hague, we are designing a reactor that can operate autonomously for about 20 years, thanks to the internal renewal of fissile fuel\u2014a unique promise in the fast reactor market. Furthermore, the Stellarium is designed to also operate with HALEU (High-Assay Low-Enriched Uranium), a fuel enriched in U235 beyond conventional levels used in pressurized water reactors. On this topic, we are collaborating with Orano to synchronize roadmaps and production volumes.<\/p>\n\n\n\n
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- The reactor <\/strong>The chosen fuel exchanger design is complex. Acknowledging this, we have released a detailed 3D design with thermal and pressure calculations. To optimize its fabrication, we rely on top French experts based at CEA-Liten<\/a> in Grenoble.<\/li>\n<\/ul>\n\n\n\n
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- Salt Chemistry<\/strong> : A significant R&D program has been launched with our partners (CNRS<\/a>, CEA<\/a>, IJCLAB<\/a>) and the Orano's sharing group<\/a> (Thorizon<\/a>, Naarea<\/a>) enables pooling R&D efforts on salt synthesis, reprocessing, and corrosion control.<\/li>\n<\/ul>\n\n\n\n
- The reactor <\/strong>The chosen fuel exchanger design is complex. Acknowledging this, we have released a detailed 3D design with thermal and pressure calculations. To optimize its fabrication, we rely on top French experts based at CEA-Liten<\/a> in Grenoble.<\/li>\n<\/ul>\n\n\n\n
- The fuel <\/strong>The focus here is on determining the State\u2019s strategy regarding increasing production capacities of civil plutonium for fast neutron reactors.<\/li>\n<\/ul>\n\n\n\n
- Business model <\/strong>Strong industrial partners like Technip Energies<\/a>, Schneider Electric<\/a> or Orano<\/a>, a business model that optimizes financial requirements before initial sales; and structurally low reactor costs due to its compactness-to-efficiency ratio. Its load-following capability is ideal for replacing fossil-fuel plants currently serving this role.<\/li>\n<\/ul>\n\n\n\n
- Security<\/strong><\/strong> prise en compte d\u00e8s la conception<\/strong> : un sel combustible demeurant plus de 20 ans en r\u00e9acteur, limitant radicalement le nombre de transports de mati\u00e8res radioactives, et la disposition souterraine de notre r\u00e9acteur.<\/li>\n<\/ul>\n\n\n\n
- Safety:<\/strong><\/strong> : Four safety barriers<\/a> limit exposure to only 1 mSv at closure, with a demonstration of enhanced safety in scenarios involving a hypothesized breach of the first barrier without causing major incidents. The reactor also features a low-pressure, natural convection system.<\/li>\n<\/ul>\n\n\n\n
![\"\"](\"https:\/\/www.stellaria.fr\/wp-content\/uploads\/2024\/11\/english-HC-2.jpg\")
<\/figure>\n\n\n\n