Projects / prj-stellaria-alvin-cadarache

Stellaria Alvin experimental reactor (INB Alpha) at Cadarache

Experimental reactor, not a power plant. Stellaria filed the creation-authorisation application for INB Alpha on 19 December 2025 for its 100 kW Alvin molten-salt experimental reactor, planned to start in 2030 on the Cadarache site.

Stage
Licensing
Design
Design not selected (Microreactor)
Technology
Not selected · unknown
Operator(s)
Stellaria
Vendor(s)
—
Location
CEA Cadarache · France · precision: approximate
OpenStreetMap Nominatim point for 'Centre d'Études Nucléaires de Cadarache'; centre point, not a facility plot.
Coordinates
43.6876, 5.7556
Electrical capacity
— · scope: plant
Thermal capacity
0.1 MWth (nameplate_unspecified)
Modules planned
—
Inclusion basis
microreactor_labeled
Confidence
medium
Last verified
2026-10-02 (publication/verification date)

Milestones & dated events

Regulatory actions

Sources