From November 4 to 6, 2025we will be attending two major international events: WNE 2025 (World Nuclear Exhibition) in Villepinte and Data Centre Worldpart of the Tech Show Paris, at Porte de Versailles. Two complementary gatherings driven by a single ambition: accelerating the transition toward clean, safe, dispatchable, and sustainable energyfor energy-intensive industries and emerging technologies.
WNE 2025: interactivity first
For the world’s largest civil nuclear exhibition, Stellaria has developed a simulator of the control panel of its prototype reactor, Alvin, scheduled for 2030. Take the controls, start the reactor, and explore various operational scenarios!
Visitors will also discover the new design of the Stellarium reactor through an exclusive video showcasing Stellaria’s latest advances. .The design evolves, but the goal remains the same: to decarbonize heavy industry,, significantly enhance the safetyof future nuclear systems, and reduce the volume and radiotoxicity of long-lived high-level waste..
Meet Us at WNE 2025:
November 4, 11:00 AM – Auvergne-Rhône-Alpes Pavilion : Keynote with Nicolas Breyton (President, Stellaria), Cédric Barba (Managing Director France, Newcleo ) and Jean-Michel Romary (Head of Dismantling and Waste Project Management, Orano), moderated by Romain Monier (CTO, Nuclear Valley), discussing innovative reactors. Nuclear Valley
November 4, 5:00 PM - Workshop Room 1 : Fast molten salt reactors: the next frontier toward sustainability? Panel with Nicolas Breyton, Stellaria's President, Laure Claquin, COO's Thorizon and Isabelle Morlaes (senior VP, Orano)
November 4, 5:45 PM - Mainstage : We are proud to be nominated for the WNE Innovation Award in the category “Contributing to more adaptive solutions for emerging challenges.”A great honor to see our fast molten salt reactor technology recognized among the most promising innovations in civil nuclear energy.
November 5, 9:00 AM - Stand StellariaA048 Press breakfast on our booth to learn more about our fundraising round and our contract signing with Equinix (viennoiseries incluses). Inscriptions sending a mail. et sur preuve de statut.
November 5, 2:00 PM - Stand StellariaA048 : Visit from GIFENDelegation as part of the Nuclear 4.0 – Digital focus tour.
A unique opportunity to explore how advanced nuclear technologies can drive industrial sustainability and energy sovereignty..
>Parc des Expositions – Paris Villepinte >Booth A048
stellaria à WNE 2025 du 4 au 6 novembre à Villepinte
Data Centre World Paris: connecting nuclear and digital
On November 6,our President Nicolas Breyton will take the stage at Data Centre World Parisalongside Minna Marghiche (Chief Digital Transformation Officer, ENGIE), Mounir Benaija (CTO, TotalEnergies), and Romain Bonenfant (Director General, Fédération Française des Télécoms).
The session will be moderated by Stéphane Bout, Senior Associate Partner at McKinsey.ENGIE, Mounir Benaija, Directeur technique chez TotalEnergies et de Romain Bonenfant, Directeur général de la Fédération Française des Télécoms, une session animée par Stéphane Bout, Directeur associé senior de Mc Kinsey.
The conference, held at 1:30 PM on the main stage, will focus on: “Building energy infrastructures for the age of Artificial Intelligence and Quantum.”
Key Discussion points:
What new low-carbon, dispatchable electricity solutions for data centers?
How to ensure sustainable power for AI and data growth? énergie durable pour l’IA et les data centers ?
Quelles sont les innovations énergétiques Which energy innovations will shape the digital world of tomorrow?
Keynote de Nicolas Breyton, CEO, à 13h30 le 6 novembre au Tech Show Paris
Two events, one ambition: connecting energy, digital, and sustainability
From molten salt reactors to AI and data centers, Stellaria proudly represents a new generation of energy pioneers — striving for what comes closest to renewable nuclear.
Since Stellaria’s creation, our mission has remained unchanged: to deliver low-carbon, continuous, and competitive electricity to the most demanding industries, while enabling the rise of breakthrough technologies.
Our presence at both WNE 2025 and Data Centre World Paris reflects a deep conviction: the future of the energy transition will be shaped by the convergence of nuclear and digital innovation.
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