Stellaria Advances Molten-Salt Reactor Roadmap With CEA Feasibility Agreement

According to a recent LinkedIn post from Stellaria, the company and the French Alternative Energies and Atomic Energy Commission (CEA) have signed a Letter of Intent for a feasibility study on installing an “ALPHA” nuclear facility at the CEA’s Cadarache site. The proposed INB ALPHA would host a test mock-up, a fast-spectrum molten-salt liquid-fuel demonstration reactor, and a salt fabrication unit to supply both the prototype and demonstration reactor.

The post indicates that a specific area at Cadarache has been identified to evaluate the potential siting of this facility, positioning Stellaria within France’s established nuclear R&D ecosystem. For investors, this collaboration could signal early institutional validation and access to infrastructure that may reduce development risk and capital intensity for future pilot and demonstration phases.

Stellaria’s LinkedIn post characterizes the LOI as a key milestone that underpins “Alvin,” described as a critical experiment targeted for 2030 via the INB ALPHA platform. Alvin is expected to be used to validate the company’s neutronics–thermohydraulic coupling models and calculations, a step that is typically important for licensing, safety cases, and eventual commercial deployment of advanced reactor concepts.

The post also references “MegAlvin” as the next major chapter in Stellaria’s roadmap, implying a longer-term scale-up pathway beyond the initial experimental installation. If the feasibility study progresses positively and subsequent projects are funded, Stellaria could strengthen its position in the advanced nuclear and molten-salt reactor segment, potentially enhancing its competitiveness in future low-carbon baseload power markets.