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Wärtsilä Unveils Major Leap in Ammonia Engine Efficiency, Promises Near-Zero GHG Emissions for Shipping

Extensive testing of Wärtsilä's 4-stroke ammonia engine demonstrates GHG emission reductions by up to 90 percent

(FINLAND, 5/28/2025)

Extensive Testing Shows Up to 90% Greenhouse Gas Reduction for 4-Stroke Solution, Boosting Decarbonisation Hopes for Maritime Sector.

HELSINKI – Technology group Wärtsilä has announced a significant breakthrough in its 4-stroke engine-based solution for ammonia fuel, demonstrating unprecedented levels of efficiency and environmental performance. Following intensive testing since its commercial marine introduction in November 2023,... (More Info)

Previous news:

Wärtsilä Commercially Launches Breakthrough Carbon Capture Solution for Shipping Following Successful Full-Scale Trial
Wärtsilä and Elomatic sign licensing and cooperation agreement on Elogrid™ technology
Wärtsilä’s Financial Statements Bulletin January–December 2024
IN BRIEF - Wärtsilä Propulsion Factory Wuxi celebrates 20 years of innovation and efficiency and new thrusters contract
Newly introduced NextDF technology for Wärtsilä 25DF engine delivers ultra-low methane emissions
Wärtsilä’s Interim Report January–September 2024
Future-proof Wärtsilä 25 engine to power three new fishing vessels

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