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 prototype
30 MWth

 

 

Projet CALOGENALightbox

 

 

  

Logo Archeos

ARCHEOS

Industrial prototype

 

 Sodium-cooled reactors

 

logo otrera

OTRERA ONE

Industrial prototype
200 MWth

 

Projet OTRERA OneLightbox

 

 

 

logo hexana

HEXANA

Industrial prototype
400 MWth

 

Projet HEXANALightbox

 

 

High-temperature reactors

 

logo jimmy

FERMI

Industrial prototype
20 MWth

 

Projet JIMMYLightbox

 

 

 

logo blue capsule

BLUE CAPSULE

Industrial prototype
150 MWth

 

Projet BLUE CAPSULELightbox

 

 

Lead-cooled reactor

 

logo newcleo

LFR-AS-30

Experimental reactor
90 MWth

 

Projet NEWCLEOLightbox

 

 

Molten salt reactor

 

logo stellaria

ALVIN

Experimental reactor
200 kWth

 

Projet STELLARIALightbox

 

 

Overview of current fuel manufacturing and assembly plants projects

Projects for fuel manufacturing and assembly plants

 

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, HEXANA, OTRERA

 
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.

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

JIMMY
 
On May 4, 2024, JIMMY submitted a request for a DAC for the construction of a reactor intended to supply heat to the Cristal Union’s industrial facility located in Bazancourt (51).
  
On May 6 2024, the ASN was asked by the MSNR to carry out a technical examination of the request.
  
The technical assessment has been suspended pending the additional information requested by the MSNR. 

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
  
On December 19, 2025, ASNR has received  a copy of the license application file of an experimental reactor on the Cadarache nuclear site of the French Alternative Energies and Atomic Energy Commission (CEA).
     
On December 22, 2025, ASNR was asked by the MSNR to carry out a technical examination of the request.

 

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.
 


  
  


  

  

JIMMY
  
On March 27, 2024, JIMMY submitted a request for a DAC for the construction of a TRISO fuel assembly plant at the Le Creusot site.
  
  On April 4, 2024, the ASN was asked by the MSNR to carry out a technical examination of the request.
  
  The technical assessment has been suspended pending the additional information requested by the MSNR. 
 

 

STELLARIA
  
On December 19, 2025, STELLARIA submitted a request for a DAC for the construction of an INB named ALPHA, comprising a molten salt fuel synthesis plant on the Cadarache nuclear site of the French Alternative Energies and Atomic Energy Commission (CEA).
  
On December 22, 2025, ASNR was asked by the MSNR to carry out a technical examination of the request.

 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.