Alternative Fuels

Trafigura’s new ammonia quartet to be powered by WinGD engines

June 13, 2025

Swiss engine maker Winterthur Gas & Diesel (WinGD) will supply its ammonia dual-fuel engine for four newbuild gas carriers, ordered by global commodity firm Trafigura.

IMAGE: Getty Images


Each 45,000-cbm vessel will be fitted with one WinGD ammonia-capable dual-fuel engine.

Since ammonia has a high auto-ignition temperature, dual-fuel ammonia engines will require a pilot fuel, such as diesel, to ignite and sustain combustion.

WinGD recently tested its ammonia-capable marine engine at 100% load capacity, with 5% pilot fuel. Its lab tests also recorded stray ammonia emissions below 10 parts per million (ppm) and nitrous oxide emissions below 3 ppm during ammonia combustion.

WinGD’s engines are scheduled for delivery between 2027-2028.

By Konica Bhatt

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