MAN Energy develops ammonia engine to decarbonise shipping

MAN Energy Solutions has launched the AmmoniaMot 2 project, advancing the development of ammonia-powered four-stroke engines for the maritime industry. Building on the success of the original AmmoniaMot project, this new initiative will focus on creating medium-speed, dual-fuel engines that utilise ammonia, a carbon-free fuel.  

The project, supported by the German Federal Ministry for Economic Affairs and Climate Action (BMWK), brings together industry leaders and research institutes to accelerate decarbonisation in marine transport. It will run for three and a half years and aims to develop a test engine for cargo vessels and auxiliary generators on large ammonia-powered ships.  

Alexander Knafl, head of Engineering R&D Four-Stroke at MAN Energy Solutions, explained: “Following the success of the first AmmoniaMot project, this research aligns with our strategy to deliver sustainable technologies. Ammonia, as a carbon-free fuel, presents a significant opportunity to decarbonise the maritime sector.”  

The project’s scope targets engines for non-passenger ships such as cargo vessels, while methanol remains the preferred option for passenger ships like ferries and cruise liners.  

Christian Kunkel, head of Combustion Development, highlighted ammonia’s potential to reduce greenhouse gas emissions by 90-95% and comply with future emission regulations. “We are excited to continue working with our partners. There is no doubt that ammonia will play an essential role in the decarbonisation of maritime transport,” he said.  

With the project underway, MAN Energy Solutions aims to provide ammonia-powered solutions to meet growing demand for sustainable fuels in global shipping.