Abstract. The paper presents simulation of steady motion of a solar vehicle supplied with solar energy directly from a panel and indirectly from a battery. Analysis of power distribution has been carried out, inclusive of the power demand related to the need of overcoming rolling and aerodynamic resistance with respect to its structural and operational parameters and parasite losses and with regard to geographic location, hourly distribution of insolation on recommended days of selected months, spatial arrangement of the panel, aided by an accumulator battery.