What is PET Solar Panel?

PET Solar Panel means that the top layer of encapsulated material is PET film, which is a plastic film with a light transmittance of about 85%. Its surface can look shiny without any treatment, and if it is sprayed with a layer of frosted, it will look matte and a little rough to the touch.

PET solar panels are customized products with small sizes or low power output. The product structure is PET Film + EVA + Solar Cells + EVA or not + PCB. The solar cells are cut into small pieces by a laser machine, and the voltage and the electric current can be done as per the requirements, and then the single-layer transparent PET, EVA, solar cells, EVA, PCB backplanes are sequentially placed in a solar laminator for lamination. After about 20 minutes, take it out and then stick a soft and transparent protective film on the surface of the solar panel.

                                                   PET Solar Panel

What are the advantages of PET solar panels?
1. It is suitable for the production of solar modules of various sizes and different voltages and currents to meet different application scenarios.
2. Quality standards are lower than glass laminated solar panel.
3. Short lamination time and high production efficiency.
4. Low cost.

What are the disadvantages of PET solar panels?
1. Long-term exposure to the outdoors will make the PET film hard, brittle, and discolored, reducing the light transmittance of the solar panel, and at the same time, it can’t well protect the PV cells inside to avoid oxidation and corrosion. If the surface is frosted, this layer of frosted will start to fall off and become very ugly after about 0.5 years.
2. Because the lamination time is not enough, the cross-linking degree of the entire solar panel will not meet the requirements.
3. It can’t resist the relatively large impact from the outside.

What are the applications of PET solar panels?
Used for solar lawn lights, solar wall lights, solar handicrafts, solar toys, solar radios, solar flashlights, solar mobile phone chargers, solar small water pumps, solar home/office power supplies and portable mobile power systems and other products.
It is not recommended to use PET solar panels that need to be placed outdoors for a long time and have a life expectancy of more than 2 years.

WSL Solar has been a quality and professional manufacturer of custom solar panels, solar mini panels, IoT solar panels and solar solution provider in China since 2006.


Original source: https://www.wsl-solar.com/Product_News/2022/0411/what-is-PET-solar-panel.html

Crystalline Silicon Solar Cell vs IBC Solar Cell

This video mainly introduces the difference between Crystalline Silicon Solar Cell vs. IBC Solar Cell, and the difference between Mono Solar Cell vs. Poly Solar Cell. Hope it can help you better understand different types of solar cells.

Created by Carrie Wong | WSL Solar

WSL Solar has been a quality and professional manufacturer of customized solar panels and solar solution provider in China since 2006.


How to Inquire a Custom Solar Panel?

There are different types of custom solar panels: tempered glass solar panel or PET solar panel; mono solar panel or poly solar panel; black solar panel or white solar panel; with frame or not; with junction box or with ribbon only; need wire and terminal or not etc. Do you know how to inquire a custom solar panel? Hope this video could be helpful for you.

How to Inquire a Custom Solar Panel?

Quality Customized Solar Panel with High Efficiency Back Contact Solar Cell (>21% Efficiency) – WSL Solar.

As a custom solar panel manufacturer, we always keep us updated on the latest solar cell technology, aim to work out the optimized solar panel design and find the right solution to support our customer during their initial product development stage.


Quality Customized Solar Panel from WSL Solar.

Quality is always the first thing for us. We stick to strict quality control, from raw material sourcing, manufacturing process to finished product testing, we pay attention to details in each step, to deliver our clients the right solar panel for their solar application.


Custom Solar Panel – WSL Solar

What are the Basic Parameters of Custom Solar Panels?

Custom Solar Panels have several basic parameters, rated power (Pmax), efficiency (η), open circuit voltage (Voc), short circuit current (Isc), peak voltage (Vmpp), and peak current (Impp).

Custom Solar Panel

Their definitions are as follows:

Rated power (Pmax): indicates the power generated by the maximum power point voltage when the custom solar panel is at the standard ambient temperature (STC, ie, the atmospheric mass is 1.5, ambient temperature is 25 ° C, the light radiation intensity is 1000 W/m 2 );

Efficiency (η): represents the photoelectric conversion efficiency of the silicon wafer inside the custom solar panel, such as an efficiency of 16.5%, which means that the silicon wafer can generate 165 W of electricity per square meter;

Open circuit voltage (Voc): indicates the voltage across the positive and negative terminals (custom solar panel’s no-load voltage) when the solar panel is open at standard ambient temperature;

Short-circuit current (Isc): indicates the short-circuit current generated by short-circuit between the positive and negative terminals of the solar panel when the panel is at the standard ambient temperature;

Peak voltage (Vmpp): indicates the operating voltage of the customized solar panel at the maximum power point (the highest voltage in strong light) when the panel is at the standard ambient temperature;

Peak current (Impp): Indicates the operating current corresponding to the operating voltage of the solar panel at the maximum power point when the panel is at the standard ambient temperature.

Author: Carrie Wong

From WSL Solar Co., Ltd.

WSL Solar has been a quality and professional manufacturer of custom solar panel and solar solution provider in China since 2006. 


Source: https://www.wsl-solar.com/Product_News/2019/0109/Custom-PV-Modules.html