This paper presents the results of a research on the energy management of a hybrid solar vehicle. The energy management system of hybrid solar vehicles tries to select the best operating mode according to the driving conditions and the state of charge of the battery. In this study, the suggested energy management system used a particular energy balancing equation as the foundation of the algorithmic decision-making for each mode of operation of the vehicle. In order to investigate the power supplied by each component, the fuel consumption of the vehicle, and the efficiency of each component, the algorithms are then simulated on a model of a series-parallel hybrid solar vehicle system. The results show that the fuel consumption of an internal combustion engine on a hybrid solar vehicle is about 28% less than the conventional vehicle, in which up to 0.7% contributed by the photovoltaic cells.