The U.S. Department of Defense (DoD), through its Defense Innovation Unit (DIU), has announced a new initiative to fund the development of compact, transportable fusion energy prototypes. The program, named Compact Fusion for Operational Resilience (CFOR), aims to leverage recent progress in the private fusion sector to address strategic energy needs for military operations. Initial contracts have been awarded to three companies: Commonwealth Fusion Systems, Helion, and Zap Energy. The program's goal is to produce a prototype device capable of generating at least 1 MWe for applications such as remote forward operating bases and naval propulsion. Source: DOE Fusion
The CFOR program is structured in three phases. Phase 1, which is now underway with the initial contract awards, focuses on the design and component validation of a compact fusion device. According to the DIU solicitation, this phase requires awardees to deliver a comprehensive system design review and demonstrate successful tests of critical components, such as high-field magnets or plasma injectors, within an 18-month period. The total initial funding allocated for Phase 1 across all participants is $150 million. Subsequent phases will target the construction of a sub-scale integrated prototype (Phase 2) and a full-scale demonstration plant (Phase 3), contingent on meeting specified technical milestones. Source: DOE Fusion
Phase 1, which is now underway with the initial contract awards, focuses on the design and component validation of a compact fusion device.
Each company brings a distinct technological approach to the program's objectives. Commonwealth Fusion Systems will adapt its high-temperature superconducting magnet technology, central to its SPARC and ARC tokamak designs, for a smaller, more robust device. Helion proposes to scale down its field-reversed configuration (FRC) technology, which aims for aneutronic D-He3 fuel cycles and direct energy conversion. Zap Energy will advance its sheared-flow-stabilized Z-pinch concept, a design that omits the need for large magnetic coils, potentially offering a simpler and more power-dense system. This diverse portfolio of approaches reflects a key part of the DIU's strategy to mitigate technical risk in the pursuit of a viable compact fusion system. Source: DOE Fusion
This initiative represents a significant expansion of the DoD's interest in fusion energy, moving beyond basic research funded by agencies like DARPA into hardware-focused prototyping. The program's emphasis on operational resilience highlights a strategic shift towards energy independence and security for military assets, particularly in contested logistical environments. While commercial grid-scale power remains the ultimate goal for the private fusion industry, the CFOR program provides a critical non-dilutive funding stream and a clear near-term market application. The technical specifications, particularly for power density and ruggedization, will push the engineering limits of current fusion concepts. Source: DOE Fusion
The primary metric for success in the program's final phase will be the demonstration of a prototype achieving a net electrical output with high availability over a sustained operational period. While the ultimate target is a multi-megawatt system, the DIU has set an interim goal for the Phase 3 prototype to produce 1 to 5 MWe continuously for at least 100 hours. Progress will be closely watched by both the defense and energy sectors, as a successful outcome would not only provide a new class of military hardware but also significantly de-risk the underlying technologies for future commercial power plants. The next major milestone will be the down-selection for Phase 2, expected in early 2028. Source: DOE Fusion