SMR projects and their fuel manufacturing and assembly plants

Nearly eighty small modular reactor (SMR) projects are currently being developed around the world, including around ten in France.

Overview of current SMR projects

The SMR projects monitored by the ASNR are as follows:

Light water reactors

 

logo calogena

CAL 30

Industrial reactor
30 MWth

 

 

 

 

  

Logo Archeos

ARCHEOS

Demonstrator / prototype

 

 Sodium-cooled reactors

 

logo otrera

Demonstrator / prototype
200 MWth

 

 

 

 

logo hexana

HEXANA

Demonstrator / prototype
400 MWth

 

 

 

High-temperature reactors

 

logo jimmy

INB FERMI

Industrial reactor / demonstrator
20 MWth

 

 

 

 

logo blue capsule

BLUE CAPSULE

Prototype
150 MWth

 

 

 

Lead-cooled reactor

 

logo newcleo

LFR-AS-30

Prototype
90 MWth

 

 

 

Molten salt reactor

 

logo stellaria

INB ALPHA / ALVIN

Experimental reactor
200 kWth

 

 

 

Overview of current fuel manufacturing and assembly plants projects

 

logo jimmy

Marie Curie
  

TRISO fuel assembly workshop 
 

 

 

 

 

logo newcleo

Usine de fabrication de combustibles
  

MOX-LFR Fuel Manufacturing Plant

 

 

 

 

logo stellaria

GLENN
  

Molten Salt Fuel Synthesis Workshop

 

Status of technical exchanges on reactor projects

The table below sets out the framework for technical exchanges between ASNR and SMR project sponsors.

 
PREPARATORY PHASE

 
Stage 1: Screening phase
 
Stage 2: Project preparatory review

  
  
ARCHEOS

Preparatory review in progress in 2026 :
  
 BLUE CAPSULE

 
REGULATORY PHASE

 
Stage 3: Pre-licensing
 
Stage 4: Assessment of the application

CALOGENA
  
On October 31, 2024, and subsequently amended on June 20, 2025, CALOGENA submitted a request for an opinion to ASN regarding some of the safety options chosen for its small modular reactor project, CAL30. See ASNR Opinion 2026-AV-027 of 19 May 2026 (french version)
  

On December 23, 2025, January 6, 2026, May 11, 2026 and August 28, 2026, CALOGENA submitted four additional requests for an opinion to ASNR regarding some of the safety options chosen for its small modular reactor project CAL30.
  
  
  
  

JIMMY ENERGY
INB FERMI

  
On May 4, 2024, JIMMY ENERGY submitted an application to the Minister responsible for nuclear safety, for authorization of creation of a reactor located in Bazancourt (51) to supply heat to the Cristal Union’s industrial facility. Following a readiness assessment by ASNR of the documentation provided by JIMMY ENERGY, the Ministry requested additional information to the applicant on February 13, 2025.
  
On July 23, 2026, JIMMY ENERGY submitted an update to its request, including changes to the reactor design as well as responses to requests for additional information that remained relevant in light of these changes.
  
On July 24, 2026, the ASNR was asked by the MSNR to carry out a technical assessment of the updated request.

NEWCLEO
  
On December 19, 2025, NEWCLEO submitted a request for an opinion to ASNR regarding some of the safety options chosen for its small modular reactor project LFR-AS-30.      
  
  
  
  
  
  
  

                 

STELLARIA
INB ALPHA - ALVIN
  
On December 19, 2025, Stellaria submitted an application to the Minister responsible for nuclear safety, for authorization of creation of a reactor located on the Cadarache nuclear site of the French Alternative Energies and Atomic Energy Commission (13) . Following a readiness assessment by ASNR of the documentation provided by STELLARIA, the Ministry requested additional information regarding this case on June 16, 2026.
     

The technical assessment has been suspended pending the additional information requested by the Ministry.

OTRERA
 
On July 30, 2026, OTRERA submitted a request for an opinion to ASNR regarding some of the safety options chosen for its small modular reactor project OTRERA ONE.  
 
HEXANA
 
On September 30, 2026, HEXANA submitted a request for an opinion to ASNR regarding a first safety option chosen for its small modular reactor project. 
 

Status of technical exchanges on plants for the manufacture and assembly of SMR fuel

The table below outlines the framework for technical exchanges between the ASNR and project developers of plants for the manufacture and assembly of SMR fuel.

PREPARATORY PHASE

Stage 1: Screening phase
Stage 2: Project preparatory review

 

-

 

 

-

 

PHASE RÉGLEMENTAIRE

Stage 3: Pre-licensing
Stage 4: Assessment of the application

NEWCLEO
  
On December 13, 2024, NEWCLEO submitted a request for an opinion to ASNR regarding some of the safety options chosen for its plan for a pilot-scale MOX-LFR fuel production facility.  See ASNR Opinion 2026-AV-030 of 19 May 2026 (french version)


  
  


  

  

JIMMY ENERGY
MARIE CURIE
  
On March 17, 2024, JIMMY ENERGY submitted an application to the Minister responsible for nuclear safety, for construction authorization of a TRISO fuel assembly plant, called “Marie Curie”, located in Le Creusot (51). Following a readiness assessment by ASNR of the documentation provided by JIMMY ENERGY, the Ministry requested additional information regarding this case on February 13, 2025.
  
The technical assessment has been suspended pending the additional information requested by the Ministry. 


  
 

STELLARIA
  
On December 19, 2025, Stellaria submitted an application to the Minister responsible for nuclear safety, for authorization of creation of a fuel salt production facility, called “GLENN”,  located on the Cadarache nuclear site of the French Alternative Energies and Atomic Energy Commission (13) . Following a readiness assessment by ASNR of the documentation provided by STELLARIA, the Ministry requested additional information regarding this case on June 16, 2026.
  
The technical assessment has been suspended pending the additional information requested by the Ministry. 

 For further informations:

Dialogue and assessment procedures

In order to optimise preparations for any creation authorisation applications for these various innovative projects, and in order to mobilise resources proportionate to the level of development maturity of each project, a four-phase framework of incremental technical exchanges was set up.