Techno-economic Evaluation and Environmental Benefit of PV-based Electric Vehicle Charging Station on University Campus

Abstract

Smart utilities comprise an important aspect of modern smart cities. The aim of this work is to present a case study for implementing a solar- energy based electric vehicle charging station (for the first time on a campus in Egypt) at the British University in Egypt. The total amount of energy needed for charging each electric vehicle (EV) was estimated to be 13.3-16.2 kWh. The EV is operated by 12 batteries. The station was designed to provide energy sufficient for charging up to two vehicles daily during summer. Thus, the station sizing was based on provision of 16.2 KW and the system components were designed and selected accordingly. Measurements were made to evaluate the system output, efficiencies and solar radiation in both summer and winter. The results indicate that these parameters vary with day time. The economic study showed that the payback period is 10 years and 6 months. The environmental study showed that such system will save around 7,968.96 kg/kWh/year of CO <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> emissions yearly.