Yamaha, in collaboration with Roush Industries and Regulator Marine, is pioneering the development of the world's first hydrogen-combustion outboard engine for boats. This innovative project aims to make boating greener and more sustainable by utilizing hydrogen as a clean fuel source. The modified Regulator Marine 26XO boat, equipped with Yamaha's powerful 450hp XTO outboard engine running on gaseous hydrogen, marks a significant milestone towards achieving carbon neutrality by 2050. The project emphasizes safety, with smart systems onboard ensuring secure hydrogen refueling and operation. The boat features high-pressure hydrogen tanks and hydrogen detectors to monitor gas levels and maintain safety protocols. Yamaha's collaboration with Roush Industries addresses challenges like tank space limitations and supply chain issues, demonstrating a commitment to overcoming obstacles in adopting hydrogen technology in the marine industry. Yamaha showcased the hydrogen outboard at major industry events, focusing on refining the system, enhancing safety measures, and improving refueling efficiency. Despite current challenges, Yamaha remains optimistic about the future of hydrogen in boating and aims to drive the marine industry towards cleaner energy solutions. The project signifies a shift towards sustainable marine propulsion technologies, reflecting Yamaha's dedication to exploring various clean energy sources. The acquisition of electric outboard maker Torqeedo further emphasizes Yamaha's commitment to eco-friendly marine propulsion. The successful development of the hydrogen outboard engine could revolutionize the marine industry, offering a greener alternative for boating enthusiasts worldwide.