Monocrystalline Solar Panel Vs Polycrystalline Solar Panel: A solar PV module is made up of connecting the multiple numbers of monocrystalline solar panels that are arranged in parallel sequence or in a series as per the requirements. All the products related to the modules are packaged and go through special production processes under the supervision of experts.
The battery technology is different now as it is divided into crystalline silicon batteries, thin-film batteries and condenser batteries. So talking about the difference between monocrystalline solar panels and polycrystalline panels, there are many factors that vary in each of them and among them, one is battery technology. Both are two types of crystal silicon batteries but their arrangements differ from each other. The cost of polycrystalline is higher and that is the reason they are gradually decreasing. Over the years, there have been several developments in distributed photovoltaic and an increase in their demand for efficiency as well, so there is a rise in promotion for monocrystalline solar panels.
- Main components of a battery
Photovoltaic glass: It is a low iron ultra-white flush glass that is usually 3.2mm thick and is often used in a battery. For the building of material type solar cell modules, tempered glass is used which is 5 to 10 mm thick but still transmit 90% of sunlight through it.
The content of iron in the low iron ultra-white glass is lower than the other ordinary glass and this enables them to transmit more sunlight from them. The tempered treatment to the glass helps in increasing the strength of the glass by 3-4 times more than normal glasses, resist more and provides long-term protection to the solar cells.
EVA film: The copolymer is a melted glue made of ethylene along with vinyl acetate and is used in a solar cell module package to bind them together.
The EVA film is a two-layer film that is set between the panel glass, the battery and the TPT backplane film. It helps in binding all three of them together so that it can help in improving the light transmission through them perfectly. This will further enhance the flow of light transmission and provide more power output from the cell modules.
Backplane material: The backplane materials may vary depending upon the requirements for the solar cell module. Usually, we have options such as tempered glass, plexiglass, aluminum alloy and TPT composite film.
The TPT composite film defines the characteristics of no breathable, good intensity, good weather resistance, long service life, and no change in lamination temperature, and is firmly combined with the bonding material. These characteristics of TPT composite film are suitable for These features are suitable for solar cell modules. It will effectively help in preventing erosion and influence various mediums like water, oxygen, corrosive gases on EVA.
Junction box and bypass diode: Junction Box is an important component of a solar battery module and works as a part of the output cable and external cable.
A bypass diode is a part of the battery module that helps to prevent a part of a component or component in the square string that further blocks or stops from being shaded or causing power generation. It also protects the bypass assembly so as to avoid being at high.
Cell: Crystal silicon solar cells are divided into two kinds of silicon cells that are mono crystal silicon cells and polycrystalline silicon cells. Usually, the positive electrode cable is considered as the negative electrode of the cell, and the electrode cable present on the back surface is considered as the positive cable of the cell. The total area of the cell is equally proportional to the output current and power generation. So the larger the area, the greater will be the output current and power generation.
- The basic differences between the monocrystalline silicon and the polycrystalline silicon battery
Monocrystalline cells and polycrystalline cells go under pre-production processes that have some variations from appearance to electrical properties. Like if we talk about the appearance: The four corners related to the monocrystalline cells are circular, and so there is no pattern of surface.
And if we talk about the polycrystalline cells, there are four corners of it of the square angle, and the surface has a pattern that looks similar to an ice flower.
For the customers, it might be in their mind that mono silicon cells and polysilicon cells are not very different or do not have major differences. However, the average conversion efficiency of both does not have a major difference. The monocrystalline cells are only about 1% higher efficiency than the polysilicon cells.
Materials used for both the cells are different and that is the reason, the energy consumed during the manufacturing process of polysilicon cells is lower than the monocrystalline cells. This is the reason behind the low manufacturing cost of polysilicon cells and is more energy-efficient and environmentally friendly as well.
- Component series
Solar cells are connected in parallel series such as both series and parallel mix in several ways. During the battery module performance, each monomer is consistent and the array output voltage increases due to the series connection when we do not change the output current.
So when the components are connected in a parallel circuit, the output voltage of the array gets increased when there is no change in the output voltage.
And, when in series and the parallel is mixed, and the output current-voltage of the array then both can be increased.
In the square array combination connection, always follow the following principles:
(1) The components of the working current should be required in series, and the second poles should be connected in parallel to each component .
(2) The same components of the working voltage should be required and connected to the anti-charge diode within each parallel line.
(3) Always try to consider the shortest component connection cable and also use a coarser cable
(4) Strictly prevent the cellular components that are not good to mix to the whole square array combination.