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Solar photovoltaic glass application

  • Author:Fanyu
  • Source:Https://www.glass.com.cn
  • Release on:2019-04-24

Solar photovoltaic glass is a special glass that is laminated to a solar cell and can generate electricity using solar radiation and has associated current extraction devices and cables. It consists of low-iron glass, solar cells, film, back glass, and special metal wires. It seals the solar cells through a film in the middle of a piece of low-iron glass and a back glass. It is a novel high-tech glass for construction. product. It is covered with low-iron glass on the solar cell to ensure high solar transmittance. The tempered low-iron glass also has stronger resistance to wind pressure and the ability to withstand large variations in temperature difference between day and night.

flat glass

Depending on the nature of the application and the method of manufacture, photovoltaic glass can be divided into three products.

1. Package cover glass: The glass that functions as package protection, fixed support and light transmission and scattering in the assembly, mainly including ultra-white rolled glass, anti-reflective coated glass, ultra-white float glass;

2. Transparent conductive glass: glass with both light transmission and current transmission, mainly including ITO coated glass, FTO coated glass, zinc oxide-based doped aluminum or boron coated glass;

3. Concentrating component glass: Glass that converges light onto a photovoltaic cell by reflection or refraction, mainly including a phenanthrene lens, a plane mirror, a polished surface illuminating mirror, and the like. The characteristics and functions of these three products are completely different, and the added value is also very different.

Photovoltaic glass has beautiful, light-transparent controllable, energy-saving power generation. It does not require fuel, no waste gas, no waste heat, no waste residue, no noise pollution, and is widely used, such as: solar smart window, solar gazebo and photovoltaic glass. Building ceilings, as well as photovoltaic glass walls and more.

As one of the important components of solar energy equipment, solar photovoltaic glass requires that the glass plate must be highly transparent. Therefore, the iron content of the silicon raw material used for producing solar glass is very strict, and the Fe2O3 content is generally 140-150 ppm.

Solar photovoltaic glass is an important accessory product in the solar cell industry, and it has grown with the development of the photovoltaic industry. At present, some large domestic enterprises have begun to intervene in the field of solar cell glass production, and the production capacity of a single production line is 250 to 400 tons. The demand for glass in China's photovoltaic field is increasing at a rate of 50% per year. In 2010, it reached 25 million m2. The market prospect of solar cell glass is very broad. Strong support for solar photovoltaic technology research and promotion and application of photovoltaic products has important practical significance for China to establish a resource-saving and environment-friendly society and promote the sustainable development of China's economy.