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ABSTRACT Qiu, Z.-Y. and Li, D.-L., 2019. Application of photovoltaic power technology in ocean shipping power system. In: Gong, D.; Zhu, H., and Liu, R. (eds.), Selected Topics in Coastal Research: Engineering, Industry, Economy, and Sustainable Development. Journal of Coastal Research, Special Issue No. 94, pp. 480–484. Coconut Creek (Florida), ISSN 0749-0208. The excessive exploitation of marine resources has spurred on the shipbuilding industry and the energy consumption. It is unfortunate, however, that the global fossil energy gets depleted at a fast rate. Today, renewable resources such as solar energy, as a hot area, have aroused more and more concern of people. Photovoltaic power technology plays an important part in the national long-range energy strategy, and has now become a powerful substitute for fossil energy. As a core object of study, the ocean-going shipping industry in parallel with the photovoltaic power system is investigated herein to further explore how the ships operate with it. A simulation model is also built for the generator. The findings show that, as the irradiance intensity increases, the maximum output power also multiplies, so does the short-circuit current available for the photovoltaic power system. The sudden loading/unloading, single-phase or three-phase faults of ocean-going vessels in parallel with the photovoltaic power system will worsen the transient power quality. This paper sheds new light on the application prospect of photovoltaic power technology in ocean vessels.