The development of offshore photovoltaic (PV) platforms is essential for addressing the challenge of land resources scarcity associated with traditional PV installations. Floating offshore PV platforms

specifically

exhibit significant promise for solar energy utilization. This study utilizes linear potential flow theory and a multi-field coupling finite element method to investigate the performance of an offshore PV experimental application platform developed by CHN Energy Investment Group (CHN Energy)

located in Yancheng

Jiangsu Province. The hydrodynamic response

deformation

and stress characteristics of the floats are analyzed under extreme load conditions corresponding to 50-year return period sea conditions in the target region. Additionally

by considering the ultraviolet accelerated aging performance of the float materials

the study assesses the service life expectancy of the floats. The findings provide a robust foundation for the future large-scale implementation of this technology in engineering projects.