The building-integrated photovoltaic (BIPV) system lays photovoltaic modules on the outer surface of the building structure to provide electrical energy, integrating the solar power generation system with the roof, skylight, curtain wall and other buildings.

Advantages of BIPV systems:
Unused roofs or balconies can be used without occupying land alone.
There is no need to configure energy storage devices such as batteries, which saves investment costs and avoids maintenance and replacement of batteries.
Since it is not limited by battery capacity, the power generation capacity of solar cells can be maximized.
Decentralized local power supply eliminates the need for long-distance power transmission and distribution equipment and avoids line losses.
Easy to use and simple to maintain.