Everllence’s ammonia-fueled marine engine passes FAT test

By Jacinta Bakker on May 05, 2026

Engine to be installed onboard Very Large Ammonia Carriers this year

Factory Acceptance Testing on Everllence’s ammonia-fueled marine engine in South Korea.

Click to learn more about the ME-LGIA dual fuel marine engine. Source: Everllence.

Everllence’s ammonia-fueled marine engine, B&W 6G60ME-Liquid Gas Injection Ammonia (LGIA), has passed Factory Acceptance Testing (FAT), signalling readiness for customer use.

The engine, which can be integrated with High Pressure Selective Catalytic Reduction (HPSCR) technology to mitigate nitrogen emissions, was developed by German-based Everllence and built in South Korea by licensee Hyundai Heavy Industries (HHI). By October 2026, HHI will install this and other ammonia dual fuel engines into a series of under-construction Very Large Ammonia Carriers (VLACs) owned by Eastern Pacific Shipping (EPS).

Development of the ME-LGIA draws from Everllence’s expertise with analogous dual fuel engines powered by methanol and LPG (ME-LGIM and ME-LGIP respectively). The ME-LGIA engine can be retrofitted and has adjusted safety features specific to ammonia’s properties including containment systems, sensors, system ventilation and double-walled piping.

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.
Ole Pyndt Hansen, Senior Vice President, Head of Two-Stroke R&D of Everllence, in his organisation’s press release, 20 Apr 2026

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.”
Christian Ludwig, Vice President, Head of Global Sales & Promotion, Two-Stroke Business, Everllence, in his organisation’s press release, 20 Apr 2026

A timeline of EPS’ progression of this series of ammonia dual-fuel vessels includes:

In 2022, EPS, HHI and others signed a MoU to jointly develop dual-fuel VLACs
In 2023, three similar MoUs were signed to fit these vessels with MAN ES (now Everllence) dual fuel ammonia engines, to be built in China.
In 2024, EPS signed a MoU (with partners including MPA Singapore) for the Singaporean registration of six new build vessels and development of ammonia bunkering and seafarer training.

WinGD’s X52DF-A-1 ammonia dual fuel engine also completed FAT testing at HHI’s facilities in January 2026. The tested unit has been installed aboard one of EXMAR’s under-construction 46,000 m³ LPG/ammonia carriers (Midsize Gas Carriers) with delivery expected in the near future.