Feasibility Analysis of Solar-Powered Electric Vehicle Charging Stations Considering Demand Profiles


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TERKEŞ M., DEMİRCİ A.

International Journal of Research and Analytical Reviews, vol.10, no.3, pp.906-917, 2023 (Peer-Reviewed Journal)

Abstract

The ever-increasing demand for electric vehicles as clean transport is promoted worldwide raises the issue of insufficient charging infrastructure. Moreover, peak charging demand and timing for electric vehicle charging stations (EVCS) vary throughout the day depending on consumer profiles, resulting in risky investment and operational plans. Meeting the stochastic EVCS demand with hybrid power systems (HPS) reduces the use of conventional sources for power generation, increases renewable potential, and supports climate policies. This study analyzes the technical, economic, and environmental impacts of solar-assisted EVCSs for different peak demand periods and investigates minimum-cost hybrid configurations. Also, the effect of variable solar radiation (2.5-6.5 kWh/m2 /day) on HPS based on different peak demand profiles was analyzed. In addition, threshold PV capacities are determined at each solar radiation for morning, midday, and night peak periods based on the variation in the decision criteria. The results show that higher solar irradiation can shorten the payback period by up to 5.4 years and reduce consumers' threshold PV capacities by up to 22.2% and 33.3% in the night and midday peak periods. This study can help investors in clean transportation and energy for climate-based sustainable development policies.