NYK Group

Over the course of the demonstration, NYK analyzed the emission reductions achieved, with a peak of 94.4% reductions using 94.8% ammonia fuel under 75% engine load (similar results at 100% engine load).

In 2025, the pieces are rapidly assembling to enable and accelerate imports of ammonia energy to Japan. This year, government agency METI is due to announce two lots of key funding, including contracts for difference subsidies and development of import infrastructure. Power generation technologies will be commercialised within the next few years, and more maritime players are joining the push to deploy ammonia fuel in Japanese ships.

During the recent 2024 Ammonia Energy Conference, we explored all the latest developments in ammonia-powered maritime propulsion. Engine makers reported strong progress ahead of deployment in 2026, the same year that large-scale vessels will hit the water. The panel explored early operations for the ammonia-powered A-Tug in Japan, as well as ancillary technology systems required for maritime ammonia engines, catalyst after-treatment systems for emission mitigation, and the potential for fuel additives to boost ammonia engine performance.

NYK has announced that the tugboat Sakigake has been completed, and will enter three months of commercial trials in Yokohama harbor and Tokyo Bay. Thanks to retrofits, Japan’s first LNG-fueled vessel has now become Japan’s first ammonia-fueled vessel.

Moored in Yokohama Port, the A-Tug was refueled from a shoreside tanker truck with ammonia earlier this month. The ammonia for the demonstration was supplied by Resonac Corporation, and ammonia fuel is to be supplied by JERA once the vessel is delivered for commercial operations in the coming months.

Hitachi Zozen and NYK will work towards a catalyst-based N₂O removal system for ammonia-powered, 2-stroke marine engines.

An NYK-led consortium, which includes Japan Engine Corporation, IHI Power Systems and Nihon Shipyard, has announced that a construction contract has been signed with Japan Marine United to build its 40,000 m³ ammonia-fueled medium gas carrier (AFMGC) in Ariake. The vessel is due to be delivered in November 2026.

NYK reports the retrofitting of the LNG-fueled tugboat Sakigake has begun in Yokohama. An ammonia-fueled engine developed by IHI Power Systems, NYK, Japan Engine Corporation and Nihon Shipyard will replace the conventional system on board, with the tug due to hit the water by 2024. NYK & Chilean copper producer CODELCO have also announced they are developing an ammonia-powered Handymax bulk carrier, aiming to develop a fleet to service the cross-Pacific copper trade.

In Japan, NYK and TBG will develop a new ammonia bunkering boom to help reduce ammonia leakage during fuel transfers. On the newbuild front, Stolt Tanker’s six newbuild vessels will have the option of being retrofitted for ammonia propulsion, including the recently delivered Bochem Houston. Wallenius’ four “next generation” vessels will be initially methanol powered, with the option to run on ammonia.

EverWind Fuels and Svitzer have signed an MoU to deploy an ammonia-powered commercial tug in the Canso Strait, adjacent to Point Tupper: the location of EverWind’s under-development hydrogen & ammonia production hub.

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.

Kawasaki Heavy Industry's 86,700 m3, LPG and "liquefied ammonia gas" (LAG) carrier has been ordered for the fifth time in 2021. K Line, Eneos (two vessels) and now NYK (also two vessels) will take delivery of the VLGCs from KHI's Sakaide shipyards in 2023 (K Line and Eneos), and 2024 (NYK). The flexibility of the dual-purpose LPG/ammonia carrier is key to its newfound popularity.

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.

What action is needed to unlock the enormous potential of green ammonia as a marine fuel and get the new generation of ammonia-powered vessels on the water? On November 18, 2020, the Ammonia Energy Association (AEA) hosted a panel discussion moderated by Sofia Fürstenberg Stott from Fürstenberg Maritime Advisory, as well as panel members Tue Johannessen from the Center for Zero Carbon Shipping, Katharine Palmer from Lloyd’s Register, Rob Stevens from Yara International, and Kazumasa Taruishi from NYK Energy Transport.

Last week, Japan’s Ministry of Energy, Trade, and Industry (METI) announced the formation of a council to work on the implementation of ammonia as an energy commodity. The announcement came on the same day as a speech by Prime Minister Yoshihide Suga in which he established 2050 as the date certain for Japan to achieve carbon-neutrality. That was Monday October 26, 2020. The council held its first meeting on Tuesday October 27. The Council consists of four entities from the public sector and ten from the private sector. Members include companies that have previously been identified with the development of ammonia energy systems, including EPC firm JGC, capital goods manufacturer IHI, electric utility JERA, and shipping company NYK Line. The membership also reflects what appears to be the group’s central mission: positioning Japan as ammonia energy’s global leader via the dissemination of technology and the development of supply chains.

This morning, the Mærsk Mc-Kinney Møller Center for Zero Carbon Shipping was announced. Launched with a “start-up donation” of DKK 400 million (USD 60 million) from the A.P. Møller Foundation, this new research institute intends “to develop new fuel types and technologies,” to decarbonize the maritime sector. Behind the Center for Zero Carbon Shipping is a significant industrial consortium with seven founding members (actively seeking additional partners): ABS, A.P. Moller – Maersk, Cargill, MAN Energy Solutions, Mitsubishi Heavy Industries, NYK Lines, and Siemens Energy.