Optimal sizing of autonomous hybrid PV system with considerations for V2G parking lot as controllable load based on a heuristic optimization algorithm

Hybrid energy systems such as PV-battery-diesel have been identified as an effective option to solve the power-supply problem and, therefore, the optimal sizing of such hybrid PV systems becomes important. Also, activities related to the demand side of the power system such as demand response programs are interested and, electric vehicle to grid (V2G) parking lot as a controllable load unit is recently used with demand response potential through charging and discharging V2Gs according to electricity price variations. The goal of this study is to develop and examine a heuristic optimization algorithm to solve the optimal sizing for hybrid PV-battery-diesel system with considerations for V2G parking lot as a controllable load. Simulation results show that utilization of V2G parking lot can reduce total cost for optimal sizing of hybrid PV-battery-diesel system by 5.21%.