UNITY-3 breeding blanket test facility

The U.S. Department of Energy has officially committed funding to establish UNITY-3, a first-of-its-kind fusion breeding blanket test facility at Oak Ridge National Laboratory (ORNL) . The state of Tennessee is also supporting the project through its Nuclear Energy Supply Chain Investment Fund .

What UNITY-3 will do:

• House an accelerator that generates 14 MeV neutrons — the same energy produced by a burning deuterium-tritium plasma — to simulate fusion conditions .
• Test liquid lithium and a range of other breeding blanket materials to measure how effectively they produce tritium (the fusion fuel that must be "bred" inside the reactor) and harvest heat .
• Use advanced sensors to measure neutron spectrum, tritium production rates, and other key performance data inside candidate blanket sections during operation .
• Validate the computational models fusion developers rely on to simulate tritium fuel production — models that until now have only been simulated, never tested in realistic fusion neutron conditions .

Why it matters: Every deuterium-tritium fusion power plant depends on a breeding blanket to generate its own fuel. No single fusion startup would build this test facility alone — it is shared infrastructure that the entire industry needs .

Validation data for fusion startups

UNITY-3 will provide critical experimental data to multiple fusion developers, including Realta Fusion, Thea Energy, Type One Energy, and Xcimer Energy . These companies design different reactor architectures, but all need validated breeding blanket data to move toward commercial power plants. KF positions UNITY-3 as a shared resource that de-risks blanket technology for the entire U.S. fusion ecosystem .

Relocation of U.S. headquarters to Oak Ridge

Kyoto Fusioneering is relocating its U.S. headquarters from Seattle, Washington, to Oak Ridge, Tennessee . Key details:

• Investment: $46.9 million .
• Jobs: Creating 51 new roles in Anderson County .
• The move is driven by the partnership with ORNL and access to Tennessee's nuclear ecosystem .
• KF will receive a grant from Tennessee's Nuclear Energy Fund to support the relocation and facility construction .

Complementary systems across the fusion plant

UNITY-3 is one piece of a broader portfolio. KF also supplies :

• Fuel cycle systems (tritium extraction, processing, and handling).
• Plasma heating systems (gyrotrons and other microwave heating).
• Heat extraction systems (blanket cooling and power conversion).
• Breeding blanket and neutronics components beyond the test facility itself.

The company's strategy is to provide integrated, fusion-grade subsystems that multiple reactor developers can adopt, reducing the need for each startup to build its own bespoke infrastructure .

UNITY-3 breeding blanket test facility

The U.S. Department of Energy has officially committed funding to establish UNITY-3, a first-of-its-kind fusion breeding blanket test facility at Oak Ridge National Laboratory (ORNL) . The state of Tennessee is also supporting the project through its Nuclear Energy Supply Chain Investment Fund .

What UNITY-3 will do:

• House an accelerator that generates 14 MeV neutrons — the same energy produced by a burning deuterium-tritium plasma — to simulate fusion conditions .
• Test liquid lithium and a range of other breeding blanket materials to measure how effectively they produce tritium (the fusion fuel that must be "bred" inside the reactor) and harvest heat .
• Use advanced sensors to measure neutron spectrum, tritium production rates, and other key performance data inside candidate blanket sections during operation .
• Validate the computational models fusion developers rely on to simulate tritium fuel production — models that until now have only been simulated, never tested in realistic fusion neutron conditions .

Why it matters: Every deuterium-tritium fusion power plant depends on a breeding blanket to generate its own fuel. No single fusion startup would build this test facility alone — it is shared infrastructure that the entire industry needs .

Validation data for fusion startups

UNITY-3 will provide critical experimental data to multiple fusion developers, including Realta Fusion, Thea Energy, Type One Energy, and Xcimer Energy . These companies design different reactor architectures, but all need validated breeding blanket data to move toward commercial power plants. KF positions UNITY-3 as a shared resource that de-risks blanket technology for the entire U.S. fusion ecosystem .

Relocation of U.S. headquarters to Oak Ridge

Kyoto Fusioneering is relocating its U.S. headquarters from Seattle, Washington, to Oak Ridge, Tennessee . Key details:

• Investment: $46.9 million .
• Jobs: Creating 51 new roles in Anderson County .
• The move is driven by the partnership with ORNL and access to Tennessee's nuclear ecosystem .
• KF will receive a grant from Tennessee's Nuclear Energy Fund to support the relocation and facility construction .

Complementary systems across the fusion plant

UNITY-3 is one piece of a broader portfolio. KF also supplies :

• Fuel cycle systems (tritium extraction, processing, and handling).
• Plasma heating systems (gyrotrons and other microwave heating).
• Heat extraction systems (blanket cooling and power conversion).
• Breeding blanket and neutronics components beyond the test facility itself.

The company's strategy is to provide integrated, fusion-grade subsystems that multiple reactor developers can adopt, reducing the need for each startup to build its own bespoke infrastructure .