To provide a photovoltaic power generation system in which the power generation efficiency is improved by developing a function-improved, low-priced and high scale expandability car port by combining low-priced and high-functionality car ports on the market, and a method of operating the same.

In order to provide a photovoltaic power generation system installed in a car port, it is devised/invented by following means or methods of: (1) combining low-priced and practical/functional-type car ports on the market to provide a structure which is low-priced as further as possible and in which a roof surface keeps a fixed angle without modifying original car port bodies; (2) providing a roof structure which is low-priced and includes car port and photovoltaic power generation functions; and (3) dividing a solar cell loaded on the car port into blocks and devising a power collection circuit so as to improve efficiency while minimizing influences of the shade.