Honda's research and development division is embarking on an innovative project to test a high-differential pressure water electrolysis system at the International Space Station (ISS). This system, based on Honda's hydrogen fuel cell expertise, aims to create a circulative renewable energy system that can continuously produce oxygen, hydrogen, and electricity. By utilizing sunlight and water, the system will generate these essential elements during the Lunar Day on the moon. The generated oxygen will support astronaut breathing during the Lunar Night, while the remaining oxygen and hydrogen will be used to produce electricity. The process involves a closed-loop energy cycle, similar to how home solar systems operate on Earth. Honda's lightweight and compact design not only addresses the need to reduce transportation costs in lunar development but also reduces maintenance requirements due to its mechanical compression-free operation. Collaborating with Sierra Space and Tec-Masters, Honda will conduct tests on the ISS to validate the system's efficiency and reliability in a microgravity environment. This initiative stems from Honda's Space Development Division in the US, indicating a strategic move towards technology advancement and enhanced collaboration within the space industry.