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New Energy World magazine logo
New Energy World magazine logo
ISSN 2753-7757 (Online)

Safety insights for the adoption of ammonia as a marine fuel

25/6/2025

10 min read

Feature

Close up photo of small tug boat in calm sea Photo: NYK Line
The Japanese tugboat Sakigake was converted to ammonia fuelling by operator NYK and IHI Power Systems in cooperation with Nippon Kaiji Kyokai (ClassNK)

Photo: NYK Line

The potential of ammonia as a marine fuel is finally being realised, but it will require multiple safety conditions to be satisfied, writes Rene Laursen, Director, Fuels and Technology, ABS.

Ammonia is one of several alternative fuels being evaluated by the maritime industry as a future decarbonisation solution, thanks to its potential as a zero-carbon fuel and a carrier for hydrogen fuel.

 

Already a globally traded commodity, much of the ammonia shipped today is consumed in agricultural applications. To date, approximately 50 ammonia-fuelled vessels, including LPG carriers, bulk carriers, tugs and containerships, have been ordered for delivery over the next three years.

 

Zero-carbon fuels like ammonia have great potential to lower the carbon footprint of shipping. However, to realise this potential, ammonia must be produced from renewable electricity instead of its traditional feedstocks of coal or natural gas. It is possible to reduce carbon emissions from the ammonia lifecycle using carbon capture systems in the production process, but zero emission well-to-wake solutions have yet to be developed at scale.

 

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