Everllence launches dual-fuel ammonia engine

Building on the company’s ME-LGIM and ME-LGIP technologies, which run on methanol and LPG respectively, the new engine introduces enhanced safety and digital features specifically designed for ammonia fuel.

“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,” said Dr Uwe Lauber, chief executive of Everllence.

“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.”

The ME-LGIA engine operates on the diesel principle using Everllence’s liquid gas injection concept, but with added safeguards including containment systems, double-walled piping and dedicated ventilation to address ammonia’s unique properties.

The first ME-LGIA engine is scheduled for delivery in Q1 2026, following testing and bedding-in in late 2025. Everllence is already collaborating on pilot projects, including ammonia-powered vessels for Eastern Pacific Shipping, Höegh Autoliners and a Japanese bulk carrier.

“[This is] a technological milestone,” said Bjarne Foldager, head of Two-Stroke Business at Everllence, “the result of over 150,000 hours of collective work and more than 800 tests.

“Safety has been our first consideration throughout development, and by combining our pilot-project insights with digital monitoring, we will set the market gold-standard for ammonia engines.”