This paper establishes the simulation models for simulating the dynamic performance of a Microgrid system feeding the electrical loads in a sailing boat. The proposed Microgrid system consists of two solid-oxide fuel cells (SOFCs), a diesel-engine generator (DEG), a battery energy storage system (BESS), a wind turbine generator (WTG), a sea-water aqua electrolyzer (AE), an AC-to-DC converter, and a DC-to-AC inverter. The output powers of the electrical subsystems can be automatically coordinated with one another using proper controls to sustain system operation with stability and reliability. According to the steady-state and dynamic simulation results, the proposed Microgrid system can stably operate under various sailing conditions of a boat. The connected loads of the studied boat can also have sustained energy with good power quality.