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2026 Nuclear Energy Conference & Expo (NECX)
August 24–27, 2026
Dallas, TX|Hilton Anatole
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Antares achieves zero-power criticality at INL
Leveraging more than $140 million in private capital fundraising, over 322,000 square feet of operational manufacturing space, and multifaceted partnerships with the Departments of Energy and Defense, reactor start-up Antares has become the first company involved in the Reactor Pilot Program to achieve zero-power fueled criticality—a full month ahead of the July 4 deadline set by President Trump’s Executive Order 14301.
This milestone, announced yesterday, was achieved with the company’s Mark-0: a sodium heat-pipe-cooled, TRISO-fueled microreactor. The Mark-0 is a forerunner to the company’s flagship design, which it calls the R1. For Antares, this development represents a key validation of its reactor physics, control systems, and supply chain.
Award Recipient Photos
Kenneth D. Lewis
Fitz Trumble
University of Michigan (Best Section)University of Wisconsin- Madison (Best Section)Missouri University of Science & Technology (Honorable Mention)Texas A&M University (Honorable Mention)
Denis Beller
Bal-Raj Sehgal
Georges Vendryes
Small Local SectionsWashington, DC (Best Membership)Virginia (Best Meetings and Programs)Trinity (Best Public Information and Education)
Ronald J. BrunoArthur H. FriedmanTimothy McGheeRenee C. MilnerJohn SteinerPeter Tocci, Jr.Ann D. Winters
Texas A&M Nuclear Science CenterUniversity of Florida Text ReactorPurdue University ReactorOregon State UniversityWashington State University Nuclear ReactorUniversity of Wisconsin Nuclear ReactorNeutron Radiography Reactor
Robert E. Uhrig
Prashant K. Jain
Theodore M. Besmann
ZED-2 Heavy Water Critical Facility
Sue Coleman
G. Robert Odette
Virginia D. ClearySamuel J. CollinsDonald R. HoffmanRoss F. Radel
William Howard Arnoid
Nick Tsoulfanidis
Richard J. K. Stratford
Ernest D. EasonG. Robert OdetteRandy K. NanstadTakuya Yamamoto and Joyce E. Wright.
Allen CampThomas McLaughlin
GraduateUniversity of MichiganBenjamin Betzler, Hiruy Hadgu, C. Lawrence, Matt Orians, Andrew Pavlou and A. Poitrasson-RiviereUniversity of TennesseeMatthew Cook, Oscar Lastres, S. Hogle, Martin GrossbeckUndergraduateNorth Carolina State UniversityJustin Carey, J. Michael Doster, Jesse Holmes, Chris Long, Amber Smart, Josh WestUniversity of Rhode IslandMichael Audette, Charlie Hanley, James Leuzarder, Daniel McCleary, Kevin Plourde
Per Peterson
Luiz Leal
Alice Ying
David J. Diamond
Kewaunee Power Station
Michael Kansler
John W. Landis
Arielle Miller
Arielle Jennifer Miller
