We redefine nuclear energy

Founded in 2023 and backed by the French Public Investment Bank (Bpifrance), Otrera is a spin-off from the French Alternative Energies and Atomic Energy Commission (CEA), pioneering next-generation reactors for a sustainable energy future.

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We’re building an energy model that’s accessible, democratic, rooted in local communities, and fully aligned with the climate transition.

Frédéric Varaine

Founder & CEO, Otrera

Otrera on BFM Business from the 2026 Rencontres Économiques d’Aix

▶️ Watch again "France has everything it takes to succeed" – Friday 3 July, Part 1 On Friday 3 July 2026, Jean-Éric Lucas, co-founder and Executive Vice President, Finance & Strategy at Otrera, was the guest of Jérôme Tichit on the set of "France has everything it...

Otrera once again at VivaTech for its 10th edition

From June 17 to 20, 2026, Otrera took part in the 10th edition of VivaTech, Europe’s largest event dedicated to innovation and deeptech. For this anniversary edition, which brought together more than 200,000 visitors and 4,000 exhibitors at Paris Expo Porte de...

Otrera on BFM Business: Frédéric Varaine guest on French Tech

▶️ Watch French Tech on BFM Business – Otrera, a first-of-a-kind by 2032Wednesday, June 18, 2026, Frédéric Varaine, President and founder of Otrera New Energy, was the guest of Sandra Gandoin and Anthony Morel on the French Tech program on BFM Business. A morning...

Frédéric Varaine, Guest on ICI Matin on ICI Provence

© Radio France - David Aussillou ▶️ Listen to the live broadcast of ICI Matin – ICI Provence, Monday, May 25, 2026Following the announcement of the €17 million fundraising and the EDF Group's equity investment in Otrera, Frédéric Varaine, President and Founder of...

OTRERA accelerates: €17M secured to advance its 4th-generation fast neutron reactor

OTRERA announces €17 million in funding, consisting of equity and grants from the France 2030 program. This fundraising brings together a consortium of leading strategic shareholders: Groupe ADF, Groupe EDF, Isospin Exergon, Ingerop, Fortil Group, Normandie Participations, Onet Technologies, Groupe REEL, and SNEF / Ekium.

Jean-Éric Lucas, guest on BFM Normandie, discusses OTRERA’s establishment in Cotentin

Jean-Éric Lucas, co-founder of OTRERA, was a guest on Bonjour la Normandie on BFM Normandie on April 8, 2026, one week after the announcement of the plant’s establishment in Les Pieux.

OTRERA formalizes its establishment in Cherbourg-en-Cotentin

Download OTRERA’s official press release: the establishment of an industrial plant and a technology hub in Cherbourg-en-Cotentin, announced on April 1, 2026.

OTRERA announces the establishment of its plant in Cherbourg-en-Cotentin and accelerates its industrial development

OTRERA officially announces the establishment of an industrial plant and technology hub in Cherbourg-en-Cotentin. A decisive step toward the industrialization of the next-generation fast reactor.

OTRERA on the Ici Normandie news: a look back at the announcement of the Les Pieux site

OTRERA makes the headlines on Ici Normandie following the announcement of its plant’s establishment in the municipality of Les Pieux, within the Le Cotentin urban community.

Launch of the Synergia Club by Otrera: a collective momentum in support of sustainable nuclear power

In response to the industrial, climate, and strategic challenges of the energy transition, Otrera has initiated a new collaborative framework: the Synergia Club. Designed as a lever for practical synergies and co-development, this initiative already brings together...

For a New Generation of Reactors

At Otrera, we tackle the climate and energy crisis collectively. Our ambition is to build a new generation of French nuclear excellence one that creates jobs, strengthens national sovereignty, and boosts European competitiveness. We are committed to delivering low-carbon energy at an affordable and predictable cost.

The Otrera reactor is the result of a bold engineering vision, combining breakthrough technologies to offer a unique market position and exceptional cost-efficiency. It brings remarkable versatility, adaptable to a wide range of applications.

Redefining the Future of Energy Production : a paradigm shift

In the face of climate, energy, economic, and social crises, energy once just a daily concern has become a national priority. Demand is rising while production is falling behind. Otrera was created to meet this challenge head-on.

Our ambition is to build a new generation of nuclear reactors designed to serve local needs, minimize long-term waste, and set ourselves high safety standards.

A Team Committed to Excellence

Our experienced team brings together seasoned professionals from the nuclear industry and forward-thinking experts from other fields who share a common ambition: to build a new nuclear future. With decades of combined experience, we have developed deep expertise in the design, construction, and management of large-scale nuclear projects.

We are driven by passion and a commitment to push the boundaries of innovation to deliver safe, sustainable energy solutions. Together, we are a resilient and dedicated team, ready to take on the complex challenges of the nuclear sector with an unwavering focus on excellence and performance.