Comparative Study of Oscillating Surge Wave Energy Converter Performance: A Case Study for Southern Coasts of the Caspian Sea

The search for renewable energy supplies today’s global demand, particularly ocean wave coastal areas, has become undeniably widespread in the last two decades. Caspian Sea represents an immense opportunity using energy, especially considering its long shoreline. In this study, locations with maximum potential were chosen central, eastern, and western zones of Sea’s southern coasts. Accordingly, bathymetric data used as input to calculate oscillating surge converter’s flap geometric dimensions based on previous studies. Then, model was designed, then converters modeled Wave Energy Converter Simulator (WEC-Sim) module MATLAB software. Furthermore, eight models each sea state simulated find best value PTO damping coefficient, which led highest capture factor. Finally, all external forces WEC’s power output results compared, taking into account effects height total output. It found that Nowshahr port more than Anzali Amirabad ports, absorbed proved be 16.7 kW/m (Capture factor = 63%) at site. Consequently, by conducting a comparative analysis between selected sites, excitation, radiation damping, take-off scrutinized. show applied occurred port, followed due directional characteristics waves central coasts Sea.