Solar glass refers to ordinary glass that can utilize the collected solar energy and provide power by applying the latest research and development technology and adding a coating.
Effect
After installing solar cells at the edge of the glass, a mixed coating is applied to the glass surface. The coating absorbs sunlight and transmits the light at different wavelengths to the solar cells installed at the edge of the glass. Mark Bardo, an electrical engineer at the Massachusetts Institute of Technology and the head of the research team, said, "The coating can collect sunlight on large objects, such as glass Windows."
It is reported that this energy-concentrating material is not only applicable to glass but also can be used for substances such as plastic plates. It can also be made in various colors or transparent colorless. When applied to glass Windows in a transparent color, it will not affect the lighting.
The current tempered glass with coating has a higher light transmittance.
Lighting
At present, the vast majority of solar energy concentrators use large mobile mirrors to track sunlight. However, the configuration and maintenance costs of the mirrors are quite high, and the entire device is bulky. The advent of new energy concentration technologies has solved these problems. Because the production process of this technology is not complicated and the material cost is not expensive, Bardo said, "We think this is a practical technology because it greatly reduces the cost."
In addition, this technology can also be incorporated into existing solar panels, which can increase efficiency by nearly 50% at a low cost. Alavinda Kini, director of the Planning Bureau of the Office of Basic Energy Sciences at the U.S. Department of Energy, said, "This technology is low-cost and represents a revolutionary advancement in the use of solar energy."
It is comforting to note that China's solar energy industry has begun to operate. The Chinese Academy of Sciences has announced the launch of the Western Action Plan, which will invest 250 million yuan in research within two years and establish several demonstration projects for solar power generation, solar heating, solar air conditioning, etc. At present, the Baoding National High-tech Development Zone in Hebei Province is accelerating the construction of China's largest polycrystalline silicon solar cell production base. This project integrates solar cells, modules and application systems, etc. After the completion of the first phase of the project, it can reach an annual production capacity of 3 megawatts of polycrystalline silicon solar cells, filling many gaps in China's solar energy development and application. And it will greatly promote the production and sales market of low-iron glass for solar cells. It is reported that Beixin Group is one of the earliest units to organize experts to conduct investigations on the domestic and international solar photovoltaic power generation industry. Finally, the group decided to form a joint venture with the Swiss ATLANTIS company to establish Beijing - Atlantis Solar Technology Co., LTD. The joint venture will produce two major series and multiple varieties of photovoltaic power generation products, namely solar photovoltaic power generation modules and roof power generation modules, and introduce this world-leading new solar energy utilization technology to China. In 1998, Beixin Group was the first in China to introduce a 76-kilowatt rooftop solar power generation system that is internationally advanced. Up to now, it has been operating stably and achieving good results. This system generates an average of over 12 kilowatt-hours of electricity per day, which can meet the electricity demand of a moderately well-off family. Solar photovoltaic glass curtain wall refers to a new type of ecological building material that seals solar energy conversion silicon wafers in double-layer tempered glass (similar to laminated glass) to safely convert solar energy into electrical energy. Photovoltaic glass curtain wall products can be widely used in the shading systems of buildings, building curtain walls, photovoltaic roofs, photovoltaic doors and Windows, and other photovoltaic power generation. It can also be used in remote mountainous areas for residents, transportation, communication, meteorology, military and other departments, such as TV relay stations, satellite ground stations, microwave relay stations, highway and railway signal lights, agricultural photovoltaic systems, navigation lights, lighthouses, etc. Internationally, in 1996, the United States began to implement a program called the "Photovoltaic Building Program" to produce a large number of transparent photovoltaic glass curtain wall products for the roofs, walls and photovoltaic smart doors and Windows of buildings. Experts predict that this photovoltaic glass curtain wall, which adopts building-integrated photovoltaic-electricity components, will become the most sought-after project of grid-connected solar power generation systems in the 21st century. Internationally, the development of combining the use of solar cells in buildings with the manufacturing of photovoltaic glass curtain walls is particularly rapid, and its market development prospects are very promising. Although the research, production and application of this new type of ecological building material - photovoltaic glass curtain wall - started relatively late in China, the "Photovoltaic Building Project" in the United States, the "Million Roof Photovoltaic Project" in Europe, the "Asahi Project" in Japan and the "Light Project" carried out in China will trigger a wave of development and application of energy-saving, environmentally friendly and ecological building materials in China. It has greatly promoted the development and wide application of photovoltaic building materials products. The photoelectric glass curtain wall products are made of double-layer tempered glass sheets to ensure good light transmission. In addition, the polycrystalline silicon solar cells arranged in the middle of the glass are also particularly important. They are arranged and bonded between the double-layer glass, and the light transmission of the glass is controlled by the arrangement gap of the silicon solar cells. Moreover, the surface of the silicon cells is made into various colors such as blue, green, black, and yellow. These colored silicon cells are mainly used to facilitate the selection and utilization of color beauty in building curtain walls. The production process of photovoltaic glass curtain walls is roughly as follows: arrangement and welding of polycrystalline silicon wafers → layout and connection of battery lines → packaging of photovoltaic glass → inspection → leaving the factory for use.
