You lookout for the environment and care about its integrity and, perhaps, looking for new ways of benefitting from the energy the environment has to offer. The solar modules are the best way to lower your carbon emissions and work into green conservation. Amongst many, the other great reason more and more people are now preferring solar systems is because of its unlimited energy consumption and due to its no harmful effect on the environment. Moreover, solar panels are changing the way we use electricity. Hence, give us one more reason to adopt this green energy is lower electricity.
But, have we ever wondered of what materials are used in these solar panels. We will discuss the manufacturing of solar modules.
EVA (Ethylene Vinyl Acetate) acts as an encapsulant for solar cells/ modules. EVA is a copolymer film that acts as an essential sealant of photovoltaic solar modules in order to ensure reliability and performance. The role of these encapsulants is to prevent water and dirt from infiltrating into the solar modules as well as protecting the cells by softening the shocks and vibrations to the cell.
These EVA sheets should possess some qualities like excellent durability, adhesive bonding to the cell and glass, flexibility, and excellent optical transmission and transparency. The cells that are incorporated into the system are being laminated with glass and the back sheet. We’ll look at the back sheet later in this article.
Therefore, in any solar module, the typical structure would be like:
– The top glass
– EVA sheet
– One more layer of EVA sheet
– Back sheet
Hence, two EVA sheets will be incorporated in a single solar module. There are different types of EVA encapsulant available. But ethyl vinyl acetate is the most common used encapsulant material among people. These materials are implemented between the solar cells and are available as a thin sheet.
There are different methods and materials used to encapsulant sheets to solar modules for a different purpose and for overall performance. If you are looking for EVA sheet manufacturer in India you must visit Vishakha Renewables, the leading manufacturer of top-notch EVA encapsulant and back sheet.
Advantages of EVA (Ethylene-vinyl Acetate)
- Flexible even at low temperature
- Tough at moderate and low temperature
Features of EVA (Ethylene-vinyl Acetate)
- Protect solar cells from dirt and water
- Ensure the performance and reliability of the solar cells
- Provides electrical and optical transmissivity
- Keeps moisture out
Now, jumping back to back sheets, they are a film that protects the solar panel from distinct conditions. A back sheet is placed as the last layer at the bottom of the solar panel after the layer of EVA. Back sheets are made of a polymer or a combination of a polymer. Back sheets are one of the essential materials of a solar panel.
The major purpose of the sheet is to protect the PV module from the factors like UV radiation, moisture penetration, electrical insulation of the system. Also, to offer durability to the PV (Photovoltaic) module. Hence, the back sheet is crucial in order to enhance the durability of a PV module.
Features of back sheets:
- It provides UV protection
- High durability
- Protects from moisture
- superior electric insulation
If you are looking for EVA foam sheet manufacturer in India, contact Vishakha Renewables, they are India’s leading solution providers of solar modules like EVA Encapsulant and Back sheet for solar modules. They offer exceptional quality and technical services from the team of experts.