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<p>This study evaluates the techno-economic feasibility of a grid-connected photovoltaic (PV) system coupled with a lithium-ion battery-powered level-2 electric vehicle (EV) charging station in Busan, South Korea. A charging station integrated into an office building is assumed to cater to EV charging needs. Considering the typical load profile, the daily average and peak load demands for the charging station are estimated at 66 kWh and 28&#xa0;kW, respectively. Simulation results indicate that, without considering EV sale prices, the net present cost (NPC) is $57,070. However, when the proposed charging price for South Korea is factored in, the NPC decreases to – $10,046, suggesting economic viability. Compared to a grid-powered EV charging station (base case), the proposed system demonstrates a 22.89% reduction in carbon dioxide emissions. In addition, various system profiles, including electrical, battery, PV, grid, EV, and inverter profiles, are presented in detail.</p>

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Evaluating the Economic and Performance Viability of Grid-Photovoltaic-Powered Level-2 Electric Vehicle Charging Station with Battery Backup

  • 期刊论文

  • 发表日期：

    2025年1月8日

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  • Yosoon Choi,
  • Shubhashish Bhakta

摘要

This study evaluates the techno-economic feasibility of a grid-connected photovoltaic (PV) system coupled with a lithium-ion battery-powered level-2 electric vehicle (EV) charging station in Busan, South Korea. A charging station integrated into an office building is assumed to cater to EV charging needs. Considering the typical load profile, the daily average and peak load demands for the charging station are estimated at 66 kWh and 28 kW, respectively. Simulation results indicate that, without considering EV sale prices, the net present cost (NPC) is $57,070. However, when the proposed charging price for South Korea is factored in, the NPC decreases to – $10,046, suggesting economic viability. Compared to a grid-powered EV charging station (base case), the proposed system demonstrates a 22.89% reduction in carbon dioxide emissions. In addition, various system profiles, including electrical, battery, PV, grid, EV, and inverter profiles, are presented in detail.