Ammonia has tantalising properties as a fuel for shipping; it has no carbon and is a vehicle for carrying even greener hydrogen, which is harder to ship and presents energy density issues.

About the Green Seas First Movers report

This story is part of a TradeWinds Business Focus exploring shipping companies that are early adopters across a range of green shipping technologies and fuels.

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But there are still challenges to overcome. Ammonia is highly toxic, it takes up more space for the same energy content than other fuels and most ammonia production has a significant greenhouse gas footprint of its own, so supply of green ammonia made from green hydrogen or blue ammonia produced using carbon capture will need to be procured.