Abstract: Provided is a power generation system characterized by integration of a photovoltaic power generation device and a fuel cell, including: (a) a photovoltaic power generation device including a movable platform, a platform moving mechanism, and a solar tracking module; (b) a power management device including a storage battery and a power management unit; and (c) a fuel cell device including an electrolysis tank for producing hydrogen and oxygen by water electrolysis, a fuel storage unit, and a fuel cell connected to the fuel storage unit so as to receive hydrogen fuel therefrom and generate electric power to be supplied to the vehicle as a power source thereof. The platform moving mechanism is configured to move the movable platform. The solar tracking module determines the incident angle of light falling on a solar panel. The power generation system is applicable to ordinary vehicles and functions as a mobile solar power supply system.