Successful testing has been completed at IHI’s facilities in Ota, Japan. A four-stroke marine engine - fully integrated with exhaust gas aftertreatment and fuel supply systems - produced stable operations running on up to 80% ammonia fuel. Emissions of dinitrogen monoxide (N₂O) and ammonia slip were reported as “virtually zero”.

Singapore-based Ocean Network Express has signed contracts with two ship-builders for construction of five ammonia-ready VLCCs each (ten total), to be delivered in 2025. In Japan, NYK Line, IHI Power Systems and ClassNK will develop, deliver and fuel an ammonia-powered tugboat for the City of Yokohama, with the vessel to be delivered and working in the port in 2024.

Wärtsilä and Simon Møkster Shipping will explore the feasibility of using ammonia as the main fuel in dual fuel engines. Currently Møkster's fleet operates on LNG. In Japan, NYK Line, Japan Engine Corporation, IHI Power Systems, Nihon Shipyards and ClassNK will all collaborate on a demonstration project of ammonia-powered vessels in Japan. First announced in 2020 with three vessel concepts, two of the three vessel designs now have a commercialisation schedule fully defined (the A Tug and the AFAGC).

Welcome to the Ammonia Wrap: a summary of all the latest announcements, news items and publications about ammonia energy. This week: latest report from NoGAPS, Viking Energy project takes another step, more collaborations for Yara, thyssenkrupp to invest in cracking R&D, investment in clean hydrogen technology in the USA, world-first visualisation of ammonia combustion in a spark-ignition engine and our numbers of the week.

Welcome to the Ammonia Wrap: a summary of all the latest announcements, news items and publications about ammonia energy. This week: two new large-scale ammonia projects in the UAE, RWE, BASF combine for 2 GW "Offshore-to-X" project, green ammonia exports from Tasmania, coal co-combustion trials in Japan, Japanese shipping industry chases decarbonisation, South Korean companies join together in local green ammonia consortium, new funding for ammonia-from-wastewater research and Horisont Energi and Equinor join forces for the Polaris project.