What is Solar Panel Glass?

Solar Panel Glass is a type of glass that is specifically designed to be used in solar panels. It is a key component of photovoltaic (PV) modules, which are used to convert sunlight into electricity.

Solar panel glass is typically made from high-transparency, low-iron tempered glass that is able to withstand harsh weather conditions, including hail, rain, and snow. It is also designed to be highly durable and resist degradation over time, as exposure to sunlight and weather conditions can cause ordinary glass to become cloudy or develop a yellow tint that reduces its transparency.

The thickness of solar panel glass can vary depending on the specific application, but it typically ranges from 2.0 mm, 3.2 mm to 4 mm. It is also treated with an anti-reflective coating that reduces the amount of light that is reflected off the surface of the glass, which helps to increase the efficiency of the solar panel.

In addition to its primary function of protecting the solar cells from external damage and weather conditions, solar panel glass also plays an important role in maximizing the efficiency of the solar panel by allowing as much sunlight as possible to penetrate the cells and be converted into electricity.








How to clean Solar Panel Glass?

Cleaning solar glass is important for maintaining the efficiency and effectiveness of your solar panels. Here are some general steps you can follow to clean solar glass:

  1. Turn off your solar panels: Before you start cleaning, turn off your solar panels to ensure your safety and prevent any electrical shocks.
  2. Inspect the panels: Inspect the panels for any damage or signs of wear and tear, such as cracks or scratches. If you notice any damage, contact a professional to assess and repair the panels.
  3. Remove debris: Use a soft-bristled brush or a clean, dry cloth to remove any loose debris, such as dust, leaves, or bird droppings. Be gentle to avoid scratching the surface of the glass.
  4. Apply a cleaning solution: Mix a solution of water and mild soap or a specialized solar panel cleaning solution. Avoid using harsh chemicals or abrasive cleaners that can damage the glass. Apply the solution to the glass using a soft cloth or sponge.
  5. Scrub the glass: Gently scrub the glass with the cloth or sponge to remove any remaining dirt or grime. Be sure to clean around the edges and corners of the panels.
  6. Rinse the glass: Rinse the glass with clean water using a hose or a bucket. Be sure to remove all soap and cleaning solution residue.
  7. Dry the glass: Use a squeegee or a clean, dry cloth to dry the glass surface. Be sure to remove all moisture to avoid streaking or water spots.

It’s recommended to clean solar glass panels once or twice a year, depending on the environment and weather conditions. If you live in an area with heavy pollution or frequent storms, you may need to clean the panels more frequently.


The  Float Tempered Solar Glass VS Prismatic Solar Panel Glass

Float Solar Panel Glass:

  • Float solar glass is made using a float glass manufacturing process, where molten glass is poured onto a bed of molten tin and allowed to cool and solidify into a flat and uniform surface.
  • The surface of float solar glass is smooth and even, which reduces light reflection and maximizes the amount of light absorbed by the solar cells. However, some light may still be reflected, which reduces efficiency.
  • Float solar glass is commonly used in traditional solar panel systems because it is cost-effective and efficient in high-light conditions.

Prismatic Solar Panel Glass:

  • Prismatic solar glass is made by pressing a sheet of glass into a pattern of prisms or pyramid shapes, which reflect and refract light in multiple directions to increase absorption.
  • The prisms or pyramid shapes on the surface of prismatic solar glass trap more light and allow the solar cells to capture more energy, especially in low-light conditions.
  • However, prismatic solar glass can be more expensive to produce than float solar glass because of the additional manufacturing process required to create the prisms or pyramids.
  • Prismatic solar glass is commonly used in concentrated photovoltaic (CPV) systems that use lenses or mirrors to concentrate sunlight onto a small area, as it can increase the efficiency of the system.

In summary, float solar glass is a cost-effective and efficient option for traditional solar panel systems in high-light conditions, while prismatic solar glass is more expensive but can improve efficiency in low-light conditions and is commonly used in concentrated photovoltaic systems.


What is VGC Solar Panel Glass?

VGC is Solar Glass Manufacturer/Tempered Solar Glass Supplier. VGC solar glass includes:Clear Float Glass, Tempered Clear Glass, Extra Clear Glass and Low Iron Pattern Glass.

FLOAT GLASS SOLAR GLASS is the substrate of solar back glass, it is further processed (edge grinding, hole drilling and tempering) . Compared with conventional back sheet (TPT), back glass has an excellent durability performance. By using advanced equipment, we can provide back glass with highest process precision and big capacity.

LOW IRON EXTRA CLEAR GLASS is an ultra-transparent subway glass with a light transmittance of over 91%. It has crystal clear and elegant characteristics. It is called the”crystal prince”of the glass family. The ultra-white glass has good machine ability and superiority. Physical, mechanical and optical properties.

LOW IRON PATTERN GLASS is formed with a diamond pattern on one face and a smooth pattern on another, and then is further treated by tempering process. It is mainly used for the cover of PV modules or flat solar water collectors and also used as greenhouse Glass.

Solar low iron pattern glass has its unique recipe and special pattern, which ensures highest solar transmission by greatly reducing light reflection and absorbing, and therefore increases photoelectric conversion efficiency or solar-thermal conversion efficiency.
Thickness 3.5 mm and 4.0 mm mainly.

Glass for Solar Panels

Clear Series:
Clear Float Tempered
Low Iron Float Tempered
Clear Float Tempered + 2AR
Low Iron Float Tempered + 2AR
Extra clear solar glass
Diffused Series:
Clear Prismatic Tempered
Low Iron Prismatic Tempered
Clear Prismatic Tempered + 2AR
Low Iron Prismatic Tempered + 2AR
solar panel glass price
Textured Series:
Clear Matt Tempered
Low Iron Matt Tempered
Clear Matt Tempered + 2AR
Low Iron Matt Tempered + 2AR
Photovoltaic glass
Textured Series:
Clear CustomTex Tempered
Low Iron CustomTex Tempered
Clear CustomTex Tempered + 2AR
Low Iron CustomTex Tempered + 2AR
China low iron patterned glass


  • Extra clear solar glass
  • Solar panel glass sheet
  • Photovoltaic glass
  • Clear glass solar panels
  • China low iron patterned glass producer