Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : March 02, 2024
Since the power output of variable renewable energies (VREs) depends on weather conditions, it is difficult to supply electricity according to demand. Therefore, the introduction of a large amount of renewable energy will result in an oversupply of power generation to meet electricity demand, which will increase the costs associated with power generation and generation facilities, etc. One effective way to use surplus electricity is to utilize it for automobile traffic. In this study, we analyzed the optimal power supply configuration and cost reduction effects by utilizing surplus power from the massive introduction of VREs for electric vehicles (EVs) and hydrogen production power for fuel cell vehicles (FCVs). Adding the demand for hydrogen from FCVs to grid power and EV demand can reduce the overall cost of the system by effectively utilizing the surplus electricity from the increased share of VREs after 50%. Optimizing the charging of EVs and the filling of hydrogen can reduce the installation of equipment capacity and storage batteries, as well as eliminate uneven distribution of electrolyzers, contributing to the reduction of surplus electricity.
