GAMMA features 16 of the most important innovators and disruptors in the maritime sector. GAMMA partners will design, test and validate the very best energy conversion technologies and integrate them on an ocean-going vessel on international sea / ocean routes. The main goal of GAMMA is to support commercial vessels in their energy transition by demonstrating the safe integration of fuels (biomethanol and NH3), and fuel systems (biomethanol reformer, NH3 cracker and 1MW low-temperature PEM fuel cell) to provide an Ultramax bulk carrier with substantial emissions savings by performing steam reforming and ammonia cracking instead of combusting Very Low Sulfur Fuel Oil (through the replacement of auxiliary engines, which will stay as a back-up). Among the objectives of the project, GAMMA will (1) successfully retrofit the vessel, (2) show that ship operations can be handled in a safe manner and (3) test the availability of the sustainable fuel value chain for maritime vessels.