Abstract
This study proposes a solar/wind hybrid energy system assisted with battery storage to examine the feasibility and strategies of domestic green hydrogen production in Japan in the 2030s. An optimization model of the proposed system utilizing linear programming is developed to determine promising production locations as well as the optimal capacity and operation of each modeled technology. As input data for the model, meteorological data of ERA5, which has a geographical resolution of 0.25° and a temporal resolution of one hour, is processed into power generation data of solar PV and wind. Economic and technical assumptions are adopted from publicly accessible reports and literature. We find that with cost results around 25-30 Yen/Nm3, coastal regions in Tohoku might be promising. A comprehensive sensitivity analysis is conducted to examine the influence of WACC and each technology’s economic assumptions on production cost. Furthermore, selecting AREH project located in western Australia as a reference, domestic production is compared with overseas production in the same method.
