Fusion Fuel Cycles (FFC), a Joint Venture between Kyoto Fusioneering and Canadian Nuclear Laboratories, Begins Construction of UNITY-2 Tritium Fuel Cycle Facility

Kyoto Fusioneering (KF) is pleased to announce that its joint venture with Canadian Nuclear Laboratories (CNL), Fusion Fuel Cycles Inc. (FFC), has begun construction of UNITY-2 — the world’s first integrated tritium fuel cycle system test facility capable of full-loop operations. 

This milestone reflects the continued corporate growth of both FFC and KF, as well as their international expansion in developing next-generation fusion fuel cycle systems essential for the realization of fusion energy. 

FFC has officially begun construction of UNITY-2, the world’s first integrated tritium fuel cycle test facility capable of full-loop operations. Designed to support the practical realization of fusion energy, UNITY-2 will enable continuous circulation of up to 30 grams of tritium in a 24-hour operational cycle, with the ability to expand to 100 grams under the existing building license. The facility will integrate and demonstrate all key fuel cycle technologies — from fuel injection and exhaust to impurity removal, isotope separation, and tritium storage — under prototypic fusion-relevant conditions. 

UNITY-2 is now entering the construction phase at Chalk River, Ontario. Commissioning is scheduled for late 2026, at which point integrated testing will begin under controlled tritium environments. 

UNITY-2 represents a critical step toward realizing Fusion Pilot Plants (FPPs) and fusion-powered electricity demonstration facilities. As countries including the U.S., U.K., Germany, and Japan accelerate efforts to construct such plants from the late 2020s into the early 2030s, the ability to safely and efficiently operate integrated tritium fuel cycle systems becomes indispensable. Without facilities like UNITY-2, the transition from experimental fusion reactors to electricity-producing systems would face insurmountable risks and delays. 

Through FFC, KF and CNL — together with their partners — are proactively addressing this global bottleneck, delivering essential infrastructure and system-level validation that will underpin the success of commercial fusion energy. UNITY-2 is not only a technology demonstration — it is an enabling platform that bridges today’s R&D and tomorrow’s fusion-powered energy systems. 

The UNITY-2 initiative, supported by strong public-private collaboration and a global network of experts, affirms FFC’s commitment to advancing fusion-enabling technologies and accelerating the timeline to commercial fusion. The future of fusion energy is being built — and UNITY-2 is a foundational step on that path. 
 
Read the full press release from FFC here: Fusion Fuel Cycles Inc. Announces UNITY-2 Construction Milestone and Corporate Growth