Everllence has completed the type approval test (TAT) of its ME-LGIA ammonia-burning engine at its Research Centre Copenhagen (RCC). Eight classification societies oversaw the testing that took place from June 10-12, marking the latest phase towards the engine’s market debut.
Everllence officially marketed the ME-LGIA engines at a two-day event in Copenhagen in November 2025. Using the Diesel principle and the well-known, dual-fuel Liquid Gas Injection concept, the engine has a proven track record of several hundred thousand operational hours.
Maturing ammonia regulations
‘The TAT is also important in relation to maturing IMO ammonia regulations as it is vital that rules and guidelines are in line with reality to optimise safety onboard vessels,’ adds Ole Pyndt Hansen, Senior Vice President, Head of Two-Stroke R&D. ‘This experience comes from industry and the first ammonia-driven ships, which are expected to operate at sea during 2026, will act as compelling input for the development of these guidelines.’
Everllence also notes that the ammonia TAT marks the end of an era with it being the final TAT at the RCC in Copenhagen before the company moves location to outside the city in late-2027.
