Evaluation of Direct Charging with Photovoltaic Power to Electric Vehicle

Japan has urgent issues which are not only reducing CO2 emissions but also reducing imported energy as the whole country. To accomplish this, it is important to construct and expand an energy system that can be combined with natural energy and energy conservation. The system should also satisfy economic efficiency for the end consumer. In one of the solutions, "the Smart Photovoltaic power generation (hereinafter referred to as PV) & Electric Vehicle (hereinafter referred to as EV) System" has been proposed. This system combines both the PV and EV. In this paper, a novel system which is direct charging with PV power to EV and then supplying that power to a home has been studied. As a result, it is clarified that the proposed system can utilize PV power more efficiently than mega-solar through the use of power system. Additionally, it is IRR=5.5% of the system without the Feed-in Tariff scheme and various subsidies. IRR of the new system is higher than IRR of Feed-in Tariff scheme.