Antares Marks Historic Milestone with Initial Criticality of Advanced Microreactor
Antares Achieves Initial Criticality of a Privately Developed Advanced Reactor Under DOE Pilot Program
Businesswire
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Antares has successfully achieved initial criticality of its Mark-0 microreactor at Idaho National Laboratory under the U.S. Department of Energy's Reactor Pilot Program. This milestone makes Antares the first private company to reach this stage in over 40 years, setting a pathway for future nuclear reactor demonstrations and potential electricity production for military use by 2028.
- 01Antares is the first private company to achieve criticality for an advanced reactor under the DOE Reactor Pilot Program.
- 02The Mark-0 microreactor's criticality was achieved in less than 12 months, showcasing efficient project execution.
- 03The reactor utilizes TRISO fuel, developed in collaboration with BWX Technologies, which is also used in the military-focused Project Pele.
- 04The successful demonstration supports the U.S. Army's timeline for deploying microreactors at military installations by September 2028.
- 05Antares aims to produce electricity from the Mark-0 reactor in 2027, with military applications expected shortly thereafter.
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Antares has announced that its Mark-0 microreactor has achieved initial criticality at the Idaho National Laboratory, marking a significant milestone as the first privately developed advanced reactor to reach this stage under the U.S. Department of Energy's (DOE) Reactor Pilot Program. This achievement, celebrated by U.S. Energy Secretary Chris Wright, underscores a revival in American nuclear energy innovation after decades of stagnation. The project was developed in partnership with the DOE, Idaho National Laboratory, and BWX Technologies, with support from the U.S. Army. Antares CEO Jordan Bramble emphasized the importance of meeting ambitious timelines set by the government, with plans for electricity production in 2027 and military deployment by 2028. The reactor's criticality validates key physics parameters and contributes to the ongoing Project Pele, which aims to create transportable micro nuclear reactors for military use. This demonstration not only represents a leap forward for Antares but also sets a replicable licensing pathway for future reactor demonstrations, potentially transforming the landscape of nuclear energy in the U.S.
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The successful criticality of the Mark-0 microreactor signifies a potential shift in energy production for U.S. military installations, enhancing energy security and reliability.
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