Wide range of applications of solar glass

Solar photovoltaic glass  Introduction to solar photovoltaic glass

As a clean, safe and sustainable energy source, solar energy is powering the world at an unprecedented rate – around the world and especially in China. Solar photovoltaic glass is a special glass that is laminated with solar cells, capable of generating electricity using solar radiation, and has associated current extraction devices and cables. It is a glass product composed of low-iron glass, solar cells, film, back glass, and special metal wires. The solar cells are sealed between a piece of low-iron glass and a piece of back glass through the film. It is the most novel high-tech construction technology. Low-iron tempered glass or double-layer glass is usually used, and the surface is coated with anti-reflective coating and transparent conductive layer. The solar glass needs to be coated with an anti-reflective coating and a transparent conductive layer on the surface, and the solar cell components are encapsulated in it. The solar glass needs to have certain special properties such as transmittance, reflectivity, and wind pressure resistance.Solar photovoltaic glass

Solar photovoltaic glass classification.

Photovoltaic glass substrates used for solar cells generally include ultra-thin glass, surface-coated glass, low-iron content (ultra-white) glass, and other types. The most widely used solar photovoltaic glass today is high transmittance glass, which is a glass with low iron content, which is commonly known as low-iron glass. The presence of iron impurities, on the one hand, colors the glass and, and the other hand, increases the heat absorption rate of the glass, which also reduces the light transmittance of the glass. Iron in glass is produced by the raw material itself, refractory materials or metal production equipment, etc., and cannot be completely avoided. One can only reduce the iron content in glass as much as possible through production control. At present, the iron content of solar glass is between 0.008% and 0.02%, while the iron content of ordinary float glass is more than 0.7%. . As for the 3.2mm thick and 4mm thick glass that is most commonly used in China, the visible light transmittance of sunlight generally reaches 90% to 92%.

As one of the most important components of solar devices, solar photovoltaic glass requires the glass plate to be highly transparent. Therefore, there are very strict requirements on the iron content in siliceous raw materials for the production of solar glass. The Fe2O3 content is generally 140 to 150 ppm.Solar photovoltaic glass

Applications of solar photovoltaic glass:

According to reports, Germany is the first country in the world to develop solar glass using clear flat glass as a substrate. German scientific and technological personnel installed this plate-shaped solar cell as a window glass on a building. It can directly supply the ingested electric energy to residents, and the excess electric energy can also be input into the power grid. The development and utilization of this initial glass for solar cells was soon paid attention to by the United States, Japan, and other countries, thus accelerating the pace of development and application of low-iron, ultra-thin glass for solar energy.

Low-iron glass covers the solar cells to ensure more light transmittance and generate more electricity. Tempered low-iron glass is stronger and can withstand greater wind pressure and larger temperature differences between day and night.

It is widely used in many fields such as building curtain walls, photovoltaic roofs, sunshades, solar power generation systems, etc.

The installation mode can be exposed frame type, hidden frame type, or installed in conjunction with various curtain wall profiles.

Please feel free to contact us anytime in case of any queries regarding our solar photovoltaic glass products.

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