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Centrus Energy to Supply HALEU Fuel to Antares Nuclear, Enabling Micro Nuclear Reactor Applications for Military and Space

U.S. nuclear fuel supplier Centrus Energy has signed a multi-year contract with advanced microreactor developer Antares Nuclear, under which Centrus will supply high-assay low-enriched uranium (HALEU) to Antares. This agreement is expected to expand the application scenarios of micro nuclear reactors to locations where traditional power sources are difficult to use, such as military facilities and space environments. As part of the agreement, Antares Nuclear will make advance payments to support Centrus in expanding HALEU production capacity in the United States. Compared with conventional low-enriched uranium, HALEU contains more uranium-235, with an enrichment level above 5% but below 20%. This new type of fuel can support smaller, higher-energy-density reac...

2026-09-18

Antares Wins U.S. Air Force Space Nuclear Energy Technology Contract

Antares recently announced that it has received a Strategic Breakthrough Award from the Office of the Assistant Secretary of the Air Force for Space Acquisition and Integration to advance space nuclear energy technology development. The company said this is currently the largest contract awarded by the U.S. War Department in the field of space nuclear energy. Antares CEO and co-founder Jordan Bramble said that space applications have been a core focus since the company's founding, and that cooperation with the Space Force has turned related concepts into formal space missions. He said nuclear fission technology is expected to provide space missions with strategic capabilities that are currently difficult to achieve. Under the project arrangement, Antares will carry out a ground nuclear power demonstration of the R1-S reactor...

2026-09-13

US Antares to Apply Racing Power Electronics to Microreactors

Antares, a US nuclear fission energy company, recently announced a partnership with UK technology supplier Motion Applied to deploy the latter's race-proven power electronics in its microreactor power conversion system. According to Antares, Motion Applied has long served motorsport and other demanding applications, accumulating expertise in high-performance electronics and electrification technologies. This collaboration will enable Antares to use more mature, production-grade hardware in its microreactor program, reducing the time and cost associated with developing dedicated power conversion equipment from scratch. Antares Chief Nuclear Officer Ri...

2026-09-02

US Antares Selected for DOE Nuclear Energy Launch Pad Program

Antares has been selected for the U.S. Department of Energy (DOE) Nuclear Energy Launch Pad program. Led by the DOE Office of Nuclear Energy and the National Reactor Innovation Center (NRIC), the program aims to advance nuclear technologies from concept to commercial deployment. This selection further expands Antares' business footprint in Texas. Previously, the company was selected to deliver a microreactor to Joint Base San Antonio under the U.S. Air Force's Advanced Nuclear Power Facilities program. Antares CEO and co-founder Jordan Bramble stated that the reactor pilot program has accelerated the company's growth and...

2026-08-31

Antares and Standard Nuclear Sign Multi-Year TRISO Fuel Supply Agreement

Antares Nuclear, Inc. of the United States recently announced that it has signed a binding multi-year fuel supply agreement with Standard Nuclear to secure advanced nuclear fuel supply for its compact microreactor program. Under the agreement, Standard Nuclear will supply up to 8 metric tons of uranium (MTU) of tristructural isotropic particle fuel, or TRISO fuel, to Antares Nuclear by 2035. This fuel will be used in the microreactor currently being developed by Antares. Designed for demanding operating environments such as ground-based and space applications, this class of reactors aims to provide reliable power for national defense, aerospace, and off-grid critical infrastructure...

2026-08-28