Guillaume Tremblay
Guillaume Tremblay
OTRERA
Guillaume Tremblay is Director of Business Development & Government Affairs at OTRERA, a French Nuclear Spin-off of CEA and affiliate of EDF. OTRERA develops, a compact sodium-cooled fast reactor designed to decarbonise industry through nuclear cogeneration while securing energy supply by recycling spent fuel. In this role, he leads the company’s engagement with governments, industrial ecosystems and international partners.
Guillaume has more than 20 years of international experience across nuclear energy, large-scale infrastructure and advanced technologies. He has held leadership positions at Areva, Framatome and Westinghouse, from hands-on technical works at nuclear plants to go-to-market strategy for advanced nuclear technologies. His career spans major projects in Europe, Asia, the Middle East and Africa, including the completion of the world’s first two grid-connected EPR reactors at Taishan, China.
He previously served as Technical Director of Nuclear Valley, France’s nuclear competitiveness cluster, supporting projects from legacy fleet upgrades to France 2030 Generation IV start-ups. He also co-founded NEEXT, a government-backed initiative in Belfort focused on next-generation conventional islands and turbines.
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