Wärtsilä underway with ammonia engine for shipping: "You have to know what you are doing"

In 2023, Wärtsilä expects to launch a ship engine using green ammonia. The Finnish group’s head of decarbonization tells ShippingWatch that working on the engine reminds him of the rollout of LNG.

Kaj Portin is one of the primary forces behind Wärtsilä's work with developing an engine able to use ammonia. | Photo: PR/Wärtsilä

At a test facility in western Norway, Finnish engine manufacturer Wärtsilä is completing the development of a ship engine powered by ammonia.

According to plan, the engine will have to be ready for use within few weeks – following a long and complicated test process, in which safety has been the primary focus of attention.

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