Fusion Startups Pivot to Defense as Climate Funding Stalls

The fusion industry is returning to its national security origins as the promise of clean energy on the grid faces a funding drought. With traditional climate tech venture capital stalling, startups are leveraging their high-energy laser expertise to address the military's urgent need for affordable, rapid-fire weaponry capable of countering drone warfare.

Denver-based Xcimer recently secured a strategic investment from RTX Ventures, bringing the defense contractor into the fold to explore the potential of Xcimer’s massive laser systems. While Xcimer aims to build a power plant using its Phoenix laser technology, the high-power output required for fusion is inherently compatible with the requirements of directed-energy weapons. Simultaneously, Pacific Fusion has formalized a memorandum of understanding with the National Nuclear Security Administration to utilize its new New Mexico demonstration facility for high-energy-density experiments. By aligning their technical roadmaps with the needs of the defense establishment, these companies are securing vital capital that the private market is currently hesitant to provide.