Abstract:

The UK plans to ban fuel vehicle sales by 2035, leading to an increase in electric vehicles. This has led to a surge in charging demand, making standalone charging stations a potential solution. This study examines the reliability of a 2 MW standalone photovoltaic electric vehicle charging station using loss of power supply probability. The PVEVCS model consists of a PV system, a battery storage system (BESS) and a CS, using the climate data from Camborne, UK and classifying it into high and low irradiation sections. Next, four different charging demand profiles are selected to examine the models’ LPSP. Later, the chosen charging demand profiles are optimised using various combinations of PV systems, BESS and CS. It is concluded that the different solar irradiation had a significant effect on the LPSP. Under the same combination, higher PV capacity has a more positive impact on reducing daytime LPSP, higher BESS capacity has a more significant effect on lowering nighttime LPSP and larger CS capacity has a more significant impact on declining hourly LPSP.