Currently in the city construction project investment of solar power plants, the building integrated solar panel can save more resources, save space, the real solar panel and city building, here together, I will introduce BIPV, the specific installation forms and requirements. Photovoltaic building integration (BIPV) the main installation of the following forms:

1. can meet the requirements of architectural aesthetics

BIPV architecture is first and foremost a building. It is the architect's work of art. The key to its success is the outward appearance of the building. In the BIPV building, we can hide the junction box, bypass diode and connecting wire in the curtain wall structure through the related design. This will prevent direct sunlight and rain erosion, and will not affect the appearance of the building, to achieve the perfect combination with the building, to achieve the concept of architectural masters.

2. to meet the lighting requirements of buildings

For buildings, light is the soul, and its demand for light and shade is very high. BIPV is building the smooth sided glass component ultra white glass, can adjust the cell or by arrangement with perforated silicon solar cell to achieve particular transmittance, even can also meet the requirements of transparent light in the tourism office building. Of course, the greater the transmittance of solar modules, the more dilute the arrangement of the batteries, and the less power it generates.

3. can meet the building safety performance requirements

The BIPV component not only need to meet the performance requirements of PV modules, at the same time to meet the requirements of the safety performance of three experimental requirements and building curtain wall, so it is necessary to have the structure of higher mechanical properties than common components and adopting different. The mechanical properties of glass may be completely different at different locations, different floor heights, and different mounting methods.

The double glass photovoltaic module used in BIPV building consists of two pieces of tempered glass, and the composite layer is made of PVB film and composite solar cells in the middle. The whole part of the battery plate is connected with the lead end of the lead wire in series and in parallel. The thickness of tempered glass is the result of rigorous mechanical calculation according to the national building code and curtain wall code. PVB film middle component has good adhesion, toughness and elasticity, with shock absorption effect, can prevent impact penetration, even if the glass is damaged, debris will adhere firmly to the PVB film, not shedding scattered wounding, so that the damage may be reduced to the lowest level, improve the safety performance of buildings.

4. can meet the requirements of convenient installation

BIPV building is a close combination of PV modules and glass curtain walls. Since curtain wall has been developed in China for thirty years, all kinds of curtain wall forms have comparatively mature design and installation technology. Component curtain wall construction method is flexible, the main structure adaptability, mature technology, is currently using the most structural form. The unit curtain wall is easy to realize industrial production in the factory, reduce labor cost, control the quality of the unit, thus shorten the construction cycle, and bring greater economic benefits for the owner. Double curtain wall system with ventilation, heat insulation and sound insulation, energy saving and environmental protection and other advantages, and can improve the heat dissipation of BIPV components, reducing the battery temperature, reduce the efficiency loss of components, to reduce indoor heat transfer. BIPV building simply speaking, is to use BIPV photovoltaic components to replace ordinary tempered glass, and its structure is basically the same with traditional glass curtain wall. This makes the installation of BIPV photovoltaic modules have a profound technical foundation and advantages, and can fully meet the requirements of convenient installation.

5. can have the advantage of long life

Ordinary photovoltaic package used for rubber is generally EVA. Because of the anti-aging properties of EVA, the service life is less than 50 years, it can not live with the building, and the EVA yellow will affect the beauty of the building and the power generation of the system. PVB film has the characteristics of transparency, heat resistance, cold resistance, humidity resistance, high mechanical strength and so on. It has been used in architecture. Domestic glass curtain wall specifications also explicitly put forward the "Application of PVB" provisions. BIPV photovoltaic modules using PVB instead of EVA can achieve longer service life. At present, the foreign Schott and Schuco company, the domestic Guangdong Jingang glass Polytron Technologies Inc has mastered the more mature PVB packaging technology photovoltaic components.

In addition, in the BIPV system, the PV special wire (double dip tin XLPE copper), the larger diameter of wire connector, and the selection of excellent performance and other equipment, can prolong the service life of the photovoltaic system BIPV.

6., with green environmental effects

BIPV building can provide sufficient area for photovoltaic system, does not require a separate account for the land, but also eliminates the need for supporting structure of photovoltaic system; silicon solar cell is solid-state semiconductor devices, generating no moving parts, no noise, no pollution on the environment; BIPV architecture can be self occupied, reduce the cost and energy consumption of power transmission process. Reduce the transmission and power investment and maintenance cost. And strong sunshine is exactly the peak, the BIPV system can guarantee its own building electricity, under certain conditions may also be to the power grid, relieve the peak power demand has great social benefit; can also eliminate the serious pollution caused by fossil fuel power general air, the higher requirements for environmental protection today and in the future is very important.