The imperative for resilient and independent energy sources for U.S. military bases has spurred significant technological investment. Ensuring uninterrupted power for critical defense infrastructure is paramount, particularly in light of potential vulnerabilities in traditional energy grids.
Advancing Nuclear Power for Military Needs
The Pentagon, through its Defense Innovation Unit (DIU) in collaboration with the Army and Air Force, has launched a significant initiative to explore advanced nuclear solutions. This program, known as Advanced Nuclear Power for Installations (ANPI), focuses on developing microreactors specifically designed for military applications.
Project Goals: Energy Security and Independence
The primary objective is to deploy microreactors capable of providing 100% of the critical power requirements for selected military installations. This move aims to drastically reduce dependence on the civilian electrical grid, which is increasingly seen as susceptible to disruption. Furthermore, the ANPI program intends to bolster the domestic advanced nuclear industry and its associated supply chains within the United States.
Companies Chosen for Development
Eight companies have been selected to participate in this pioneering effort. These firms will compete for contracts under flexible Other Transaction (OT) agreements designed to accelerate technological progress.
Oklo | Antares Nuclear |
BWX Technologies (BWXT) | General Atomics |
Kairos Power | Radiant Industries |
Westinghouse Government Services | X-Energy |
Notably, Oklo, a startup backed by prominent tech investor Sam Altman, is among the selected vendors.
Why Microreactors? Strategic Advantages
Officials emphasize the strategic necessity of energy assurance for military readiness. Andrew Higier from the DIU highlighted that securing domestic energy sources, like those planned for bases, is fundamental to projecting power globally. Air Force Assistant Deputy Secretary Nancy Balkus linked accelerating technologies such as advanced nuclear power directly to enhancing military effectiveness. Proponents point to the advantages of modern microreactor designs, citing them as smaller, inherently safer, and more efficient than previous generations of nuclear technology. Daniel Klippstein, the Army’s lead for energy initiatives, stressed that these systems promise reduced reliance on external fuel supplies, ensuring operational continuity under diverse conditions.
Inter-Agency Collaboration
The ANPI initiative benefits from broad support across government, involving collaboration with the Department of Energy, the Nuclear Regulatory Commission, and several national laboratories to ensure safe and effective development.

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