Tokamak Energy Advances Fusion with U.S. Research Ties

Tokamak Energy Inc., the U.S. subsidiary of the UK-based Tokamak Energy, has joined the Department of Energy’s FIRE (Fusion Innovative Research Engine) Collaboratives—a $128 million initiative designed to speed up innovation in fusion energy. As part of a University of Houston–led team, the company is developing next-generation superconducting tapes that can withstand the harsh neutron environments inside fusion reactors.

High-temperature superconductors (HTS) are critical to the performance of magnetic confinement systems in fusion. This effort aims to advance HTS capabilities for future pilot plants, where durability under extreme conditions will be essential.

In addition to materials development, Tokamak Energy Inc. is acting as a technical advisor across eight FIRE projects. These collaborations involve key research institutions including Oak Ridge National Laboratory, Savannah River National Laboratory, Idaho National Laboratory, Princeton Plasma Physics Laboratory, Lawrence Livermore National Laboratory, and the University of Tennessee. This multi-institutional effort reflects a coordinated push to turn early-stage fusion research into deployable technologies.

Connecting Materials Science, Tritium Recovery, and Plasma Imaging

The company’s research also targets the fuel cycle, particularly tritium extraction and recycling—an essential requirement for sustainable fusion power. In its latest INFUSE-funded collaboration with Savannah River National Laboratory, Tokamak Energy will study lithium electrolysis using high-entropy oxide materials to recover tritium more efficiently. This project, co-led by Dr. Aaron L. Washington and Dr. Emre Yildirim, explores scalable and safer electrochemical processes to close the fusion fuel loop.

On the experimental side, Tokamak Energy’s ST40 spherical tokamak in the UK is being used to study how elements behave at the plasma edge. Through a high-speed color imaging system capturing 16,000 frames per second, researchers can now visually observe lithium and deuterium emissions in real time. This imaging, which supports ongoing spectroscopy analysis, is part of the broader LEAPS upgrade program—a joint $52 million initiative with the U.S. DOE and the UK’s Department for Energy Security and Net Zero.

The LEAPS program includes replacing older carbon armor with molybdenum, a more resilient material better suited for commercial reactor designs. These upgrades are designed to enhance plasma-facing components and reduce erosion while maintaining reactor performance.

By combining advances in superconductors, tritium recovery, and diagnostic imaging, Tokamak Energy is taking a cross-disciplinary approach to solving fusion’s core engineering barriers. Through ongoing partnerships with national labs and research universities, the company continues to help build a pathway toward commercially viable fusion energy.