Within conceptual parts of the project, for an on-board energy system of 60 MW based on fuel cell-battery hybrid system and fueled with LNG, the technical and economic requirements, and marine safety requirements were conducted and concluded. Furthermore, the genset performance with five potential future marine fuels (LNG, methanol, Fischer-Tropsch diesel, ammonia and hydrogen) have been performed. Within technical parts of the project, in order to perform the engineering of up to 60 MWe SOFC-Battery hybrid based on key performance indicators defined by analyses, the focus of activities was on the development of the process flow diagram, the optimization of the heat exchanger network and the development of the process and instrumentation diagram representing all operation modes and end-of-life condition. The design indicated excellent electrical efficiencies >60% and with integrated thermal management through optimization of heat exchangers network (HEN) total efficiency between >82% could be shown. Transient SOFC and Battery models were developed and tested against experimental data with high degree of agreement and first generation of genset models were successfully tested for feasibility and are in on-going development. A 30 kW Large Stack module (LSM) of SOFCs was assembled for experimental testing and in parallel, the testbench needed for the qualification of the LSM was put together. A unitized control algorithm was developed for the energy management unit of the LSM/Battery hybrid. Experimental characterization of the LSM was completed and the LSM/Battery load-following experiments with the developed power split control strategy in the energy management unit were completed. In addition, a first set of emissions analyses was carried out and SOFC module testing on an inclination pod subject to static and dynamic inclination was completed. Lastly, SOFC stacks have been manufactured and qualified for installation into the demonstrator SOFC component and a list of specifications, technical drawings and layout for the SOFC cabinet have been provided for integration of the demonstrator. The battery container was specified and commissioned from a subcontractor for the demonstrator.