Offshore CO2 Capture and Utilization Using Floating Wind/PV Systems: Site Assessment and Efficiency Analysis in the Mediterranean

A methanol island, powered by solar or wind energy, indirectly captures atmospheric CO2 through the ocean and combines it with hydrogen gas to produce a synthetic fuel. The island components include carbon dioxide extractor, desalinator, an electrolyzer, dioxide-hydrogen reactor complete this process. In study, optimal locations place such device in Mediterranean Sea were determined, based on three main constraints: power availability, environmental risk, production capability. was numerically simulated purpose built python package pyseafuel. Data from 20 years of simulation data used “force” island. found strongly depend availability constraint, most providing and/or power, due limited effect surface variability had requirements Within context, be Alboran, Cretan, Levantine insolation for Alboran Cretan Sea. These also not co-located areas larger maximum significant wave heights, thereby avoiding higher risk. When we simulate at these locations, 10 L s−1 seawater inflow rate produced 494.21, 495.84, 484.70 mL m−2 over course year, respectively. Island communities regions could benefit energy resource diversification independence systems provide. However, impact is poorly understood requires further investigation.