Photovoltaic building integration can be divided into two categories: one is the combination of photovoltaic phalanx and building. The other is the integration of photovoltaic phalanx and architecture. Such as photovoltaic tile roofs, photovoltaic curtain walls and photovoltaic daylighting roofs. In these two ways, the combination of photovoltaic array and building is a common form, especially the combination with building roof.
According to the different ways of combining photovoltaic phalanx with buildings, the integration of solar photovoltaic buildings can be divided into two categories:
The first category is the combination of photovoltaic phalanx and building. In this way, the photovoltaic array is attached to the building, and the building plays a supporting role as the carrier of the photovoltaic array.
The second category is the integration of photovoltaic phalanx and building. In this way, photovoltaic modules appear in the form of a building material, and photovoltaic phalanx becomes an inseparable part of the building.
The combination of photovoltaic phalanx and building (the first type) is a common form. In the 2008 Olympic Games, the National Swimming Center, the National Gymnasium and other Olympic venues used solar photovoltaic grid-connected power generation systems combining photovoltaic phalanx and buildings. The annual power generation of these systems can reach 700,000 kWh, which is equivalent to saving 0/70 tons of standard coal/kloc and reducing carbon dioxide emissions by 570 tons.