Army spending $2B to build nuclear microreactors at 5 bases

The Army is planning a $2.2 billion investment to develop nuclear microreactors for military bases. The goal is to strengthen national security by making energy supplies more dependable. Instead of relying entirely on outside power sources, bases could gain a compact nuclear energy option.

A nuclear microreactor is a compact nuclear reactor that produces energy through controlled nuclear reactions. The article describes these systems as small and factory-built. Their size and manufacturing approach are intended to make them suitable for locations such as military bases.

The article gives a production range of 1 to 20 megawatts of thermal energy for a nuclear microreactor. Thermal energy means energy available as heat, rather than electricity alone. This range allows a reactor to serve useful energy needs at a smaller site.

The Army is pursuing dependable energy to firm up national security, according to the article. Military bases need power for communications, facilities, security systems, and other essential operations. If electricity becomes unavailable, those activities can be disrupted.

A reliable on-site power source could make a base more resilient. Instead of depending entirely on electricity delivered from an outside grid, the base could generate energy nearby. That matters when outside supplies are interrupted or threatened.

Factory-built microreactors are small nuclear systems made in a controlled manufacturing facility before deployment. Large nuclear power plants are much bigger projects designed to supply substantial regional grids. Microreactors are intended for smaller, more specific energy needs.

Nuclear fission releases energy when a heavy atomic nucleus, commonly uranium, splits into smaller nuclei. The split releases heat and additional neutrons. Those neutrons can continue a controlled chain reaction, producing a steady supply of thermal energy.