Honda announced plans to test its high-differential pressure water electrolysis system at the International Space Station (ISS) in collaboration with Sierra Space and Tec-Masters. The project aims to develop a regenerative fuel cell system for advanced energy storage to support human life on the lunar surface. The system will continuously produce oxygen, hydrogen, and electricity, utilizing sunlight and water resources. During the Lunar Day, electricity generated by the sun will power the process, producing hydrogen and oxygen from water. The generated electricity, along with the remaining oxygen, will be used to power the fuel cell system during the Lunar Night, with water as the only byproduct. The testing on the ISS will verify the efficiency and reliability of the system in microgravity. Honda's Space Development Division at American Honda was established to promote technology development in the U.S. and enhance collaboration with the U.S. space industry. This initiative demonstrates Honda's commitment to fostering sustainability through pioneering technology and collaboration.