Abstract
This study presents a comprehensive methodology for evaluating floating photovoltaic (FPV) structures, focusing on the impact of wind and wave conditions from hydrodynamic and structural perspectives. The methodology is applied to a Class 1 pontoon-type structure with rigid and hinged configurations. A total of 558 simulations are conducted, considering various environmental actions, configurations, and mooring line chain sections. The results provide essential data on loads and motion time series for subsequent structural analysis. Wind forces primarily influence surge and sway motions, while wave forces dominate other motion components. Comparing the hinged configuration to the rigid one, a significant reduction in maximum yaw motions of 32% to 76% was observed, depending on the mooring chain section employed. This reduction in yaw motions may positively impact the energy yield. However, an inverse trend was observed for pitch motions. Hence, a comprehensive assessment of wave-induced motions is crucial for selecting the optimal FPV configuration. Furthermore, heavier chain sections effectively limited surge, sway, and yaw motions, with variations of up to 75% observed in the hinged configuration when comparing different chain options. Structural analysis highlights the importance of wave characteristics, mooring system configuration, and system flexibility. The findings emphasize the need to consider environmental conditions, structural aspects, and energy efficiency in optimizing FPV configurations.
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