The US Army announced on Wednesday that it is allocating up to $2.2 billion to five companies for the development and operation of small-scale nuclear reactors intended for military bases. These compact reactors aim to provide reliable energy sources for remote facilities.
Microreactors, which are miniature factory-assembled nuclear plants, are designed to be easily transportable and capable of generating up to 20 megawatts of electricity each. The Army’s initiative, called the Janus program, envisions deploying the first of these reactors by September 2028. Such technology could supply power to isolated sites in places like Alaska or remote islands.
The selected companies and locations are: Antares Nuclear Inc at Fort Bragg, North Carolina; BWXT Advanced Technologies LLC at Fort Campbell, Kentucky; General Atomics Electromagnetic Systems at Fort Hood, Texas; Radiant Industries Inc at Fort Benning, Georgia; and Westinghouse Government Services at Fort Drum, New York. While the Army has not specified individual funding amounts for each firm, Radiant Industries stated it could receive up to $750 million to develop and deploy 15 Kaleidos reactors as part of this program.
An Army official emphasized that these reactors will adhere to all environmental and safety standards applicable to commercial reactors but will be regulated by the Army rather than the Nuclear Regulatory Commission, which oversees commercial nuclear facilities. “Our goal is to develop a commercial product at the end of this process,” said Jeff Waksman, the principal deputy assistant secretary of the Army for Installations, Energy, and Environment.
Radiant’s Chief Commercial Officer, Mike Starrett, explained in an interview that securing the Janus award is crucial for scaling up their business to meet the needs of commercial users, such as data centers, around 2030.
Critics argue that microreactors might be more costly than traditional nuclear reactors. Waksman acknowledged that cost competitiveness is not expected to favor microreactors initially but highlighted that the Janus program aims to identify ways to reduce prices over time. Currently, the military pays approximately 40 cents per kilowatt-hour to energize Arctic installations, a cost target the new technology hopes to lower.
Additionally, the Army anticipates increased private sector investment in reactor development, beyond what federal funding provides. The program is designed to attract capital from private sources. Starrett noted that because Radiant’s containerized reactors can be brought directly to the customer, bypassing transmission costs, the delivered price could be between 20 and 30 cents per kilowatt-hour.




