Test or trial


Genesis Sea vessel. February 12, 2026
Ulstein Verft completes sea trials for Genesis Sea CSOV ahead of spring delivery  

The 89.6-metre vessel features hybrid battery propulsion and preparations for green methanol operation.
Aerial view of tanker vessel at sea. January 28, 2026
Fuel treatment technology shows 21% efficiency gain in university tests  

Fuelre4m's technology reduced fuel consumption in marine engines without modifications, according to an Athens university study.
Everllence’s 21/31DF-M engine render. December 10, 2025
Everllence confirms ethanol operation on 21/31 four-stroke engine  

Engine builder says tests in Denmark validated fuel flexibility of methanol-capable platform.
Laura Mærsk vessel. December 8, 2025
Maersk to trial 50% ethanol blend on dual-fuel methanol vessel  

Shipping line plans higher-ethanol-content tests following initial 10% blend trial on Laura Maersk.
Grupo Ibaizabal vessel render. November 11, 2025
NextDF engines achieve 0.9% methane slip for Ibaizabal's LNG bunkering vessel  

Factory tests show methane emissions far below FuelEU Maritime threshold on newbuild.
Rolls-Royce first pure methanol marine engine. October 28, 2025
Rolls-Royce tests first pure methanol marine engine in world first  

Facility test marks development step for methanol marine fuel technology.
Demonstration vessel REIMEI. October 7, 2025
Japanese consortium achieves 98% methane slip reduction in LNG vessel trials  

Mitsui O.S.K. Lines, Kanadevia, and Yanmar exceed target in onboard demonstration.
Hanwha Ocean conducts world’s first ship-to-ship LNG transfer during sea trials. October 6, 2025
Hanwha Ocean claims world's first ship-to-ship LNG transfer during sea trials  

South Korean shipbuilder says innovation reduces environmental impact and avoids terminal congestion delays.
Model testing for Green Handy methanol-powered vessel. September 15, 2025
Methanol-fuelled Green Handy ships pass model tests ahead of 2026 construction  

Baltic carrier reports model testing exceeded performance targets for 17,000 dwt methanol-powered vessels.
Aurora Expeditions' Sylvia Earle. September 11, 2025
Aurora Expeditions claims 90% GHG reduction in landmark HVO trials  

Sylvia Earle said to be the first Infinity-class ship to trial HVO biofuel.
Pictured: Biofuel is supplied to NYK Line's Noshiro Maru. The vessel tested biofuel for Tohoku Electric Power in a landmark first for Japan. February 12, 2025
NYK trials biofuel in milestone coal carrier test  

Vessel is used to test biofuel for domestic utility company.