With the rapid development of the BIPV market in recent years, more and more BIPV projects have been built, and the application scenarioses have become increasingly diverse. According to application scenarioses, there are mainly photovoltaic curtain walls, photovoltaic daylighting roofs, photovoltaic shading corridors, roof photovoltaic tiles, and other application scenarioses (such as photovoltaic railings, photovoltaic floor tiles, etc.).

1. Photovoltaic curtain wall

Overall, building curtain walls have the same enclosure function as photovoltaic curtain walls. It combines photovoltaic power generation technology and curtain wall technology, and is a high-tech product that integrates power generation, sound insulation, thermal insulation, safety, and decorative functions into a new type of building envelope structure. At the same time, solar cell power generation does not emit carbon dioxide or produce harmful gases to the greenhouse effect, and is also noise free. It is a clean energy source. Photovoltaic curtain walls can take various forms, which will be shared in subsequent articles. Please continue to follow.

For curtain wall projects, it is advisable to use building material type photovoltaic modules, whose dimensions should comply with the design modulus of the curtain wall, and the surface color and texture should be coordinated and unified with the curtain wall; The performance of photovoltaic curtain walls should meet the overall physical performance of the installed curtain wall and the requirements of building energy conservation; For areas with dual performance requirements for lighting and safety, double glass photovoltaic curtain walls should be used, which must meet the indoor requirements for visibility and transparency; The canopy, eaves, and skylight made up of glass photovoltaic curtain walls should meet the safety performance requirements of the corresponding parts of the building in terms of stiffness, strength, drainage function, and prevention of falling objects from the air.

At present, the cadmium telluride thin film photovoltaic curtain wall is the most widely used and adaptable to various scenarioses. Representative projects include the National Grand Theatre Dance Art Base, Datong Energy Museum, Guangzhou Art Museum, Ezhou Shunfeng Huahu Airport, Jiaxing Science and Technology Innovation Center, Shenzhou International Color Pattern Photovoltaic Curtain Wall, etc.

2. Photovoltaic daylighting ceiling

At the beginning, daylighting roofs were designed for the purpose of house lighting, mainly to meet the needs of indoor lighting. Later, with the progress of society and the continuous development of architectural design forms, glass daylighting roofs now not only meet the needs of lighting, but also increasingly reflect the decorative style of buildings. With the innovation of building materials, different forms of daylighting roofs have emerged, and there are more and more expressive techniques in architecture. The application of glass daylighting roofs is also becoming more and more widespread. With the continuous development of photovoltaic glass technology, photovoltaic skylights have emerged. Due to the unique way in which the skylight is placed on the roof of a building to receive sunlight, it can provide a good angle of incidence for photovoltaic power generation glass. Therefore, photovoltaic skylights can effectively utilize the power generation function of photovoltaic glass.

After summarizing the experience of a large number of photovoltaic daylighting projects, after balancing factors such as transmittance and power generation, using cadmium telluride power generation glass with 20% transmittance is a good choice: on the one hand, because the 20% transmittance effect can already meet the daylighting requirements of the owner. In addition, the higher the transparency of cadmium telluride power generation glass, the less power generation film there is in the power generation glass, which will reduce the heat absorption and cooling effect of the power generation glass, and at the same time, the power generation power will also decrease.

3. Photovoltaic shading corridor

Sunshade systems can reduce direct sunlight exposure, thereby avoiding indoor overheating, and are the main measures for building thermal insulation in cold winter and hot summer areas. Sunshade is a new modern architectural form that solves human needs for building energy conservation and natural enjoyment through technological means. Building shading systems can serve to block heat. At the same time, the sunshade system blocks ultraviolet rays, effectively protecting humans from harm, and can also adjust visible light to prevent glare, which is essential for modern office work. In addition, the shading system can also regulate natural airflow and improve the environment. And most importantly, due to the obstruction of the shading system, the power consumption of the air conditioner is reduced, thereby achieving the goal of energy conservation.

The photovoltaic shading system not only has the above functions, but also generates electricity. This application scenario, which is both energy-saving and capable of generating electricity, has broad market development space. Photovoltaic shading systems can be divided into two types: skylight shading and facade shading. They can be fixed angle or adjustable angle, and adjustable angle shading can be set to manual control, electric control, sunlight tracking control, and other methods.

4. Roof photovoltaic tile

Photovoltaic tiles integrate photovoltaic modules into supporting structures, integrating solar panels with building materials and directly applying them to roofs. They replace ordinary roof tiles and are installed on roof structures, integrating efficient power generation performance with building roofs and aesthetic design. Compared with traditional tiles, photovoltaic tiles have superior characteristics such as thermal insulation, thermal insulation, fire prevention, water seepage prevention, and hail resistance.

Traditional tiles have weak tolerance, are prone to damage, and may experience problems such as water leakage. They need to be replaced every few years, resulting in periodic labor and tile costs. The service life of photovoltaic tiles is over 25 years, saving money and making money, green, energy-saving and environmentally friendly.

5. Other application scenarioses

In addition to the four major application scenarioses mentioned above, there are also other BIPV application scenarioses such as photovoltaic tiles and photovoltaic railings. With the continuous breakthrough of photovoltaic power generation technology and the continuous enrichment of photovoltaic building materials products, the combination of photovoltaic and building will become increasingly diverse. Building photovoltaic integration will inevitably become an important component of buildings in the future, which can be seen everywhere in our daily life and work scenarioses.