Photovoltaic power generation system

A photovoltaic power generation system (11) in which an electricity generated by solar cells (21 a,21 b,21 c) and a remaining battery level can be checked at once, thus enabling the photovoltaic power generation system (11) to be efficiently operated. The photovoltaic power generation system (11) is provided to charge a battery (42) of a vehicle (2) and is equipped with solar cells (21a,21b,21c) for feeding an electromotive force to the battery (42). The photovoltaic power generation system (11) includes LEDs (52,53,54) to make the remaining battery level and the electricity generated by the solar cells (21a,21b,21c) visible. Without taking the trouble to prepare a measuring instrument or to push a button of an indicator, a user of the vehicle (2) can immediately check the remaining battery level and the electricity generated by the solar cells (21a,21b,21c) by visually checking the display (52,53,54) of the LEDs, thus enabling the photovoltaic power generation system (11) to be efficiently operated.