Each energy source is optimized for specific flight demands. During daylight missions, solar-embedded wings continuously supply power. For bursts of energy during launch or rapid maneuvers, the battery system kicks in. Meanwhile, cruising relies on a compact hydrogen fuel cell module. Together, these systems create a smart onboard micro-grid that adapts power flow in real time, helping extend flight duration while cutting emissions.
The aircraft builds on XSun’s SolarXOne drone platform, which already delivers over 12 hours of electric flight and can travel more than 600 km per mission. By integrating hydrogen fuel cells, the next-gen version aims to significantly boost range and flexibility without sacrificing payload capabilities or acoustic discretion—key for defense, environmental monitoring, and infrastructure inspection.
The companies are also developing a complete operational ecosystem to support deployment in remote and off-grid environments. H3 Dynamics’ H2-Field solution—a mobile hydrogen production and refueling station—is a core component. Currently undergoing field tests with the U.S. Army, it enables UAV operators to generate and refuel hydrogen on site, reducing dependency on supply chains or fixed infrastructure.
XSun CEO Benjamin David stated that the tri-brid system integrates seamlessly into the company’s ICARE program, which focuses on combining solar, battery, and hydrogen propulsion depending on mission needs. The lightweight and modular design allows operators to tailor the UAV’s energy profile to suit the specific operational scenario.
This collaboration leverages the aerospace engineering talent and supply networks of Toulouse while opening up deployment opportunities across Europe, North America, Australia, and the Middle East.
