Home Smart Energy Management System for Optimized Electricity Cost Reduction Using Photovoltaic-Powered EV Charging Station

In order to achieve the goal of "Carbon Peak Reduction and Carbon Neutrality" and reduce the cost of home electricity consumption, this paper proposes a home smart energy management system (HSEMS), which optimizes home energy consumption by utilizing the photovoltaic-powered electric vehicles charging station. While ensuring the daily energy demand of home load and considering the charging/discharging demand of electric vehicles, the HSEMS energy consumption model and cost reduction strategy are implemented based on a four-stage optimization algorithm. In the proposed strategy, the profit is gained by optimally coordinating the different types of household load, the EV energy storage, parked electric vehicles charging station and the roof PV generation. Through studying the cases, the electricity cost using conventional strategy and the proposed strategy are compared and effectiveness of the proposed strategy to benefit the electricity users by saving cost and making profit is validated.