Yanmar Power Technology recently conducted a successful demonstration of its 500kW hydrogen engine designed for power generation in coastal vessels. The engine, utilizing pilot-ignition, operated using a mixture of hydrogen, air, and a small amount of diesel oil. Yanmar proudly announced that it achieved the world's highest hydrogen fuel ratio with an impressive output of about 500kW. Looking towards the future, the company has plans to explore biofuel as an alternative pilot fuel and is working towards obtaining class certification before the scheduled demonstration operations in 2026. This trial was a part of the Nippon Foundation's zero-emission ship demonstration experiment, which aims to develop hydrogen-powered vessels, combining hydrogen engine generators with batteries. Yanmar is also conducting tests on a spark-ignition engine on land concurrently to advance the adoption of hydrogen engine-compatible electric propulsion vessels. The consortium, which includes Uno Transtech, Kyoto University, Fukuoka Shipbuilding, and others alongside Yanmar, is collectively working to push forward hydrogen technology in maritime applications. In addition to the successful 500kW engine, Yanmar made further progress by achieving a 30% hydrogen blend in a 400kW EP400G gas-fired cogeneration system. This milestone was reached in July 2024 at Daigas' Carbon Neutral Research ANNEX Torishima site, demonstrating Yanmar's commitment to advancing hydrogen technology in power generation.