SOLAR CHARGING SYSTEM

The solar charging system is a solar charging system mounted on a vehicle. The solar charging system includes a power generation module, an auxiliary battery, a high-voltage battery, and a control unit that controls power transfer. When power transfer from the auxiliary battery to the high-voltage battery is requested, the control unit performs the power transfer from the auxiliary battery to the high-voltage battery based on a power storage amount of the auxiliary battery, the power generated by the power generation module, and power consumption of an auxiliary load using the auxiliary battery as a power source.