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// DOSSIER — us-army-awards-project-janus-nuclear-microreactors
US Army Awards $2.2 Billion Under Project Janus to Build Nuclear Microreactors Across Five Military Bases
REL_TIME: 27 Aug 2026 17:12Z · LANG: EN
The U.S. Army and Defense Innovation Unit have selected five defense and energy firms to build operational nuclear microreactors across five domestic military installations under the $2.2 billion Project Janus initiative. Designed to establish energy resilience independent of civilian power grids and diesel backup generators, the program uses fixed-price, milestone-based contracts to target bringing the first microreactor online by September 2028, with long-term plans for over 20 microreactors nationwide.
// Background
U.S. military bases depend heavily on civilian energy grids, which suffered over 6,000 disruptions in 2021. Project Janus builds upon DoD's mobile reactor program (Project Pele) and uses NASA-style commercial milestone contracts. A May 2025 executive order instructed the military to deploy an operational advanced nuclear reactor at a domestic base no later than September 2028.
// Key Developments
- Five vendors paired with specific bases: Antares Nuclear (Fort Bragg, NC), BWXT (Fort Campbell, KY), General Atomics (Fort Hood, TX), Radiant Industries (Fort Benning, GA), and Westinghouse (Fort Drum, NY).
- Up to $2.2 billion in total milestone-based funding will be distributed between FY2027 and FY2031, supplemented by private capital investments.
- Microreactors will generate between 1 and 20 megawatts to back up critical base infrastructure, replacing liquid fossil fuels.
- The program faces domestic high-assay low-enriched uranium (HALEU) supply constraints, requiring close coordination with the Department of Energy.
- Critics express concern over safety and cost, accusing the military of bypassing standard Nuclear Regulatory Commission oversight to subsidize uneconomical tech.
// Timeline
-
Fort Belvoir reactor becomes the first nuclear power reactor to supply electricity to a commercial power grid.
-
Department of Defense launches Project Pele to design mobile containerized microreactors.
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Executive orders signed by President Trump mandate an operational military reactor by late 2028.
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The Army identifies nine potential installations as finalists for Project Janus.
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The Army officially announces the selection of five companies and five domestic bases for Project Janus contracts.
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Mandated deadline for the first operational microreactor on an Army base.
// Perspectives
[U.S. Army and Defense Department]
Strongly supportive, viewing microreactors as a vital baseline power source to safeguard mission capabilities against grid failures or grid-targeted attacks.
[Selected Defense Contractors]
Highly optimistic, seeing the contract awards as a major catalyst for accelerating commercial microreactor manufacturing and deployment.
[Nuclear Proliferation and Safety Critics]
Critical, arguing the program uses military funds as an uncompetitive subsidy while avoiding essential Nuclear Regulatory Commission oversight.
// Quotes
“We are building the energy resilience necessary to project combat power globally, without relying on potentially vulnerable external grids.”
“Right now, all critical infrastructure that the Army has is backed up by some form of liquid fossil fuel, primarily diesel. So that makes nuclear energy just a natural game changer for the Army.”
“It's a dangerous scam on many levels... using military deep pockets to provide a hidden subsidy to nuclear companies that can't find private-sector customers.”
