Key Takeaways
- The partnership aims to provide a reliable power source for missions during the 14-day lunar night when solar panels are useless.
- Honda’s system stores solar energy as hydrogen during the lunar day and converts it back to electricity at night, creating a closed-loop energy cycle.
- The fuel cells will work with Astrobotic’s sun-tracking Vertical Solar Array Technology (VSAT) to create a robust power solution.
- This technology is a crucial step toward establishing a sustained human presence on the Moon by extending mission durations from days to years.
Honda is venturing into the final frontier, announcing a partnership with space company Astrobotic Technology to tackle one of the biggest hurdles in lunar exploration: surviving the long, frigid lunar night. The collaboration will focus on integrating Honda’s innovative regenerative fuel cell technology with Astrobotic’s lunar power systems.
The core of the partnership is Honda’s fuel cell system, which is designed to store energy generated by solar panels during the long lunar day. It converts this energy into hydrogen, and then, when darkness falls for two weeks and temperatures plummet, it converts the stored hydrogen back into electricity. The only byproduct is water, which is then recycled back into the system, creating what Honda describes as “a closed-loop energy cycle.”
This technology is designed to work in tandem with Astrobotic’s Vertical Solar Array Technology (VSAT), a solar power system that tracks the sun to maximize energy generation. By providing a constant power source, the joint system aims to support a sustained human presence on the Moon and enable missions that can last for years rather than just a few days.
The feasibility study will focus on three key areas: conducting illumination studies at lunar South Pole deployment sites, evaluating the scalability of Honda’s fuel cell system, and assessing hardware and software integration requirements. The companies will simulate one-year solar illumination profiles at various lunar locations to optimize the fuel cell system sizing for different mission scenarios.
Bobby Rolley, Astrobotic’s Lunar Power Systems Architect, described the partnership as “a major move” toward revolutionizing lunar exploration economics by enabling survival through harsh lunar conditions. Founded in 2007, Astrobotic has secured over $650 million in NASA, Department of Defense, and commercial contracts, while Honda established its Space Development Division in late 2024 to advance cooperation with the U.S. space industry.
“The collaboration between Honda and Astrobotic marks a pivotal step toward creating scalable power solutions for long-term lunar surface missions,” said Derek Adelman, chief engineer at Honda’s Space Development Division.