Combat Drones Are Pivoting Into Green Hydrogen Fuel Cells

The article discusses the evolving role of drones and robotic ground forces in modern warfare, highlighting how Ukraine’s conflict with Russia has accelerated the integration of unmanned systems in combat. Ukraine is increasingly replacing traditional infantry with drones, sensor networks, and robotic artillery support, aiming to have up to 30% of its forces replaced by robots by 2026, with projections reaching 80% in the future. This shift underscores a broader military trend toward robotic armies, a concept also explored by the US military for years. A key focus is on powering these drones and robotic systems using green hydrogen fuel cells, which offer advantages like longer flight times, heavier payloads, and extended lifecycles compared to batteries alone. The US Department of Defense has been experimenting with mobile green hydrogen electrolysis units to support remote operations. The Michigan startup Sesame Solar, in partnership with drone maker Heven AeroTech, developed a mobile green hydrogen “nanogrid” that enables rapid drone assembly and instant refueling in the field,