Everllence Unveils Dual-Fuel Ammonia Engine ME-LGIA at Copenhagen Industry Event

Everllence has introduced its new dual-fuel ME-LGIA (Liquid Gas Injection Ammonia) engine at a two-day event in Copenhagen attended by more than 300 maritime industry representatives. The engine is the company’s latest addition to its dual-fuel portfolio and is designed to operate on ammonia, a fuel gaining traction as the sector explores zero-carbon options.

The ME-LGIA engine is based on Everllence’s existing Liquid Gas Injection systems used for methanol (ME-LGIM) and LPG (ME-LGIP). To address the specific handling requirements of ammonia, the new model incorporates additional safety features including containment measures, enhanced sensors, ventilation systems, and double-walled piping.

Dr Uwe Lauber, CEO of Everllence, said:
“As the maritime industry’s leading engine designer, we are in a unique position to advance the green transition and know that bringing new fuels to market is not just innovation – it’s imperative for zero-carbon shipping. In this context, ammonia is a vital piece of the puzzle. The development of this engine is not just a technical achievement; it is another concrete step towards a climate-neutral future where the time to act is now.”

According to the company, the first ME-LGIA engine is scheduled for delivery in the first quarter of 2026, with bedding-in expected in the fourth quarter of 2025. Everllence is currently involved in several pilot projects using the new technology. These include two Very Large Ammonia Carriers for Eastern Pacific Shipping, four engines for Höegh Autoliners’ Pure Car and Truck Carriers, and one installation for a bulk carrier in Japan, where testing is underway at the MITSUI E&S facility.

Bjarne Foldager, Head of Two-Stroke Business at Everllence, said:
“This ammonia engine is truly a technological milestone. It is the result of over 150,000 hours of collective work and represents a significant financial investment on our part. Since two-stroke engine testing on ammonia started in July 2023, we have carried out over 800 tests – both here in Copenhagen and at MITSUI E&S in Japan. All the way through, safety has been our first consideration and we have worked closely with the relevant authorities and classification societies to ensure that the technology meets all demands. Combined with the knowledge we will gather from the pilot-projects, we are confident that this responsible approach will ultimately deliver the market gold-standard in ammonia engines with a final design based on operational experience. Furthermore, these engines will be digitally connected to optimise operational performance.”

The ME-LGIA engine also introduces digital connectivity features that enable secure data transfer from vessels to Everllence’s shore-based monitoring systems. This real-time data access is intended to support operational optimisation, remote troubleshooting and improved efficiency as shipowners adopt ammonia-fuelled propulsion.

The initial sales release for the ME-LGIA will cover G50, S50, S60, G60, G70 and G80 bore sizes. Retrofit options are planned for future availability.