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Ammmonia	Methanol	BioFuel & Clean Diesel	Nuclear	LNG

Using an abundant, if toxic, resource to power the maritime fleet.	A mature future fuel already in use - but will it become dominant?	Numerous NGOs protested against the IMO earlier this year putting biofuels in its Global Fuel Standard, but the “fuel versus food” debate seems to have been solved by deriving fuels from waste.	Technically the cleanest possible fuel source available to the maritime world and one that has the longest history, dating back to the 1950s. Why is it not in common, non-military use?	LNG is currently the most popular lower carbon fuel, but with bio and e-LNG it could move beyond its current transition fuel status supported by extensive existing infrastructure.
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All engine retrofit articles

News
Methanol engine retrofit marks milestone

2026-06-23T13:07:00Z

Seaspan Yangtze is the first vessel in a five-ship upgrade programme by Hapag-Lloyd
News
A next generation module-based retrofit

2025-05-27T12:37:00Z

The project reflects a growing trend to prioritise sustainable, cost-effective solutions like module-based retrofits
News
Wärtsilä wins bulk carrier engine retrofit double

2025-04-16T13:22:00Z

The retrofit project for Ulusoy Sealines should deliver potential CO2 emissions savings of over 1,500 tonnes annually