Everllence has announced that its first ammonia-burning engine has passed its Factory Acceptance Test (FAT), marking a key step ahead of the commercial debut of the technology on vessels scheduled for delivery from October 2026.

The dual-fuel Everllence B&W 6G60ME-LGIA engine was built by licensee Engine & Machinery of Hyundai Heavy Industries (HHI-EMD) in South Korea. It is intended for a vessel owned by Singapore-based Eastern Pacific Shipping (EPS) that is currently under construction at HD Hyundai Heavy Industries (HHI) in South Korea. The engine is also equipped with high-pressure selective catalytic reduction (HPSCR) technology.

The very large ammonia carriers (VLACs) under construction at HHI will be the first in the world to be fitted with Everllence 6G60ME-LGIA ammonia engines.

Ole Pyndt Hansen, Senior Vice President and Head of Two-Stroke R&D at Everllence, commented: “This is a huge milestone that places our ammonia engine on the very brink of its commercial debut. This engine sets new benchmarks in zero-carbon propulsion and digitally connected performance, and has attracted great interest since development began. The speedy execution of this FAT is just the latest step in what we anticipate will be a largely seamless journey from lab to ocean. It stands testament to Everllence’s unique ability to deliver just what the market needs. Bringing new fuels to market is not just innovation – it's imperative for zero-carbon shipping.”

Everllence introduced the ME-LGIA at a two-day event in Copenhagen in November 2025. Using the diesel principle and dual-fuel liquid gas injection technology, the engine shares core features with Everllence’s existing ME-LGIM and ME-LGIP units, which run on methanol and LPG, respectively. The ammonia engine also includes additional safety features, such as containment systems, sensors, system ventilation, and double-walled piping, developed for ammonia as a marine fuel.

Christian Ludwig, Vice President and Head of Global Sales & Promotion, Two-Stroke Business at Everllence, said: “The ME-LGIA successfully completed its FAT in all operation modes, and we can report that the engine is stable and running very well. Special thanks go to HHI-EMD for its central role in the production of this engine, and for its stellar collaboration during testing and the FAT itself. This new success comes off the back of an intense testing programme stretching back three years, where safety has always been the prime consideration. Combined with the knowledge we will gather from a number of other pilot projects we are currently engaged in, we are confident that this will ultimately deliver the gold standard in ammonia engines.”