How to Make a Custom Solar Panel?

Solar panel is a device that converts solar energy into electrical energy, and solar energy is an inexhaustible source of energy.

Now more and more custom solar panels are being applied to off-grid solar applications, such as solar chargers, solar attic fans, solar traffic sign, solar LED lighting, solar IoT etc.

While do you know how to make a custom solar panel? Welcome to watch this video, it could be helpful for you.

Posted by Carrie Wong | WSL Solar

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

https://www.wsl-solar.com

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. 

https://www.wsl-solar.com/

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

Ranked No. 1 in the World for 4 Consecutive Years. Why Jinko?

Recently, Jinko has frequently moved, and international solar module orders have been continuously updated. At the same time, it has also raised its 2020 performance forecast. 

According to incomplete statistics, JinkoSolar’s international solar photovoltaic module orders opened in 2020 only reached 1.2GW. 

5W Solar Panel from WSL Solar


Judging from the recent international orders signed, including Sri Lanka and Hungary, JinkoSolar supplies 400W high-efficiency Cheetah solar panels for Sri Lanka roof projects and 13.6MW modules for 19 photovoltaic power stations in Hungary. 

The announcement revealed that JinkoSolar provided 2MW high-efficiency Cheetah series solar panels to Jacksons Power and Energy in Sri Lanka, which is currently one of the country’s largest rooftop photovoltaic systems. Compared with traditional single-sided solar panels, Cheetah’s 158.75-size half-cell cell design enables industrial and commercial rooftop photovoltaic systems to provide higher power, efficiency, and less shadow blocking effects, increasing the power generation by 15% in the same area. 

In Hungary, JinkoSolar supplied 13.6MW of solar modules to Photon Energy Solutions HU Kft (“Photon Energy”) for installation in three Hungary projects. These projects consist of 19 photovoltaic power plants, located in Tisa Kecske, Hungary, Ormászf it, and Nagyécéd, Hungary. It is understood that the total annual power generation of the above power stations is expected to be 16GWh. 

In addition, JinkoSolar recently provided 1GW of high-efficiency photovoltaic solar panels to photovoltaic power stations in Colombia, Mexico and Spain. 

In fact, most of the orders for photovoltaic module companies in 2020 have been signed in the second half of 2019, and JinkoSolar’s public orders are actually only part of the signed orders. 

People in the photovoltaic industry will not be unfamiliar with Jinko Energy. JinkoSolar Holdings Limited (NYSE: JKS) is a ground company in China, the United States, Japan, Germany, the United Kingdom, Chile, South Africa, India, Mexico, Brazil, the UAE, Italy, Spain, France, Belgium and other regions. Solar power products, solutions and technical services are provided by power station, commercial and civil customers. 

It is worth mentioning that JinkoSolar recently raised its forecast for the fourth quarter and full year of 2019. 

JinkoSolar predicts that total solar PV module shipments in the fourth quarter of 2019 will reach 4.5GW-4.6GW, with total revenue of US $ 1.35 billion-US $ 1.38 billion, respectively, a 6% increase from previous estimates, 14%. In terms of gross profit margin, JinkoSolar is expected to reach 18% -20% in the fourth quarter of 2019, and the previous guidance price was 18.5% -20.5%. 

For the full year of 2019, JinkoSolar will increase its total solar PV module shipments to 14.3-14.44GW. 

Looking forward to 2020, JinkoSolar estimates that this year’s module shipment will be about 18GW-20GW, which is about 4GW-6GW higher than the full-year forecast for 2019, which means that total PV module shipments will increase by 35%. 

It should be noted that since 2016, JinkoSolar has firmly occupied the leading position in global photovoltaic module shipments. 

According to statistics, JinkoSolar continues to be the leader in photovoltaic modules in 2019, and Jinko’s module shipments in 2019 are 14.3-14.44GW, which is 37.86% higher than the second place. This is the fourth consecutive year that JinkoSolar has occupied the largest shipments since 2016. 

JinkoSolar has established a vertically integrated photovoltaic industry chain. As of December 31, 2019, monolithic wafer capacity was 11.5 GW, solar cell capacity was 10.6 GW, and solar module capacity was 16GW. JinkoSolar has 7 production bases worldwide, 15 overseas subsidiaries, and more than 15,000 employees. 

Editor: Carrie Wong / WSL Solar 

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

https://www.wsl-solar.com

Source from: https://www.wsl-solar.com/Industry_News/2020/0310/Jinko-2020-performance-forecast.html

What’s the Construction of a Small Custom Solar Panel?

A solar panel is a device that converts solar energy into electrical energy. Since solar panels can be customized flexibly, small custom solar panels have been applied to many off-grid solar applications, such as solar chargers, solar attic fans, and solar LED lights etc.

Usually the solar panels we see are a complete piece of panel, but do you know what the internal structure of the solar panels is?

Small Custom Solar Panel

Here, we mainly introduce the crystal silicon solar panels that are more common on the market as an example.

The structure of crystalline silicon solar panels is usually: tempered glass / EVA / solar cell / EVA / backsheet.

Solar Panel Construction

(1) Tempered glass: Its function is to protect the main body of power generation (such as solar cells). The choice of light transmission is required:

1. The light transmittance must be high (generally 91% or more); 2. Ultra-white tempering treatment.

(2) EVA: Used to bond fixed tempered glass and solar cell. The quality of transparent EVA material directly affects the life of solar panels. EVA exposed to air is prone to aging and yellowing, thus affecting the light transmission of solar panels, so then, affecting the power generation quality of the solar panels. In addition to the quality of the EVA itself, the influence of the lamination process of the custom solar panel manufacturers is also very large. For example, if the EVA adhesiveness is not up to standard, the bonding strength of EVA and tempered glass and backing plate is insufficient, which will cause EVA early aging, thus affects solar panel’s life.

(3) Solar Cell: Solar cells are the core components of solar panels. The main function of solar cell is power generation. 

(4) Back sheet: Its function is sealed, insulated and waterproof. Generally, materials such as TPT and TPE must be resistant to aging. Most solar panel manufacturers are guaranteed for 25 years. Tempered glass and aluminum alloys are generally no problem. The key is whether the back sheet and silica gel can meet the requirements.

 When the solar cell is soldered, the next step is to laminate, according to the following sequence, tempered glass / EVA / solar cell / EVA / back plate, stacked, and then sent to the laminator for vacuuming, and high temperature lamination. EVA is solid at room temperature, but when EVA is exposed to high temperatures, it becomes liquid. Therefore, in the laminator, after the EVA is melted into a liquid state, the solar cell sheet and the tempered glass and the back sheet are glued together.

Just after laminating from the laminator, usually on the four sides of the solar panel, there is some excess EVA overflow, which requires a knife to cut and burr. After processing, a complete solar panel is produced.

Editor: Carrie Wong / WSL Solar