In the field of renewable energy, solar energy, as a clean and sustainable energy form, is gradually becoming an important solution to meet the global energy demand. Lightweight solar panels, as the core of photovoltaic power generation systems, have their technical performance and quality directly determining the power generation efficiency and stability of the systems. The PA621 lightweight solar panels, developed and produced by Shenzhen Sungold Co., Ltd., have attracted great attention in the industry by virtue of their unique technological advantages and wide range of application scenarios.
What is PA621?
PA621 is a new type of lightweight solar panel designed for application scenarios such as balconies, RVs, and rooftops. It adopts a glass-free design, making the module’s weight only 37% of that of traditional single-glass panels, approximately 4.4 kg/m². This significantly reduces the installation difficulty and cost. Meanwhile, the PA621 module possesses excellent characteristics such as high strength, high conversion efficiency, impact resistance, waterproof and moisture-proof properties, and zero hot spot, enabling it to operate stably in harsh outdoor environments and provide reliable power support for users.
PA621
What are the differences between PA621 and traditional solar panels?
Differences between PA621 and traditional solar panels
Why Choose the PA621 lightweight solar panel?
Lightweight and High-efficiency
The PA621 lightweight solar panels adopts a glass-free design. While reducing the weight, it also has high strength and impact resistance, and can withstand high temperatures, loads, and hail impacts. The module selects high-efficiency crystalline silicon solar cells with a conversion efficiency as high as 22.7%, effectively increasing power generation and reducing system costs.
4.4 kg-m² weight
Stable Power Output
The composite backsheet, low-temperature coefficient solar cells, and thermal insulation material design of the module can maintain stable power output in high-temperature environments, reduce the power loss caused by temperature fluctuations, and ensure the long-term and efficient operation of the photovoltaic system.
Durable and Sturdy
Using fiber-reinforced polymer backsheets and weather-resistant front sheets to replace the glass lamination structure not only significantly reduces the weight but also enhances the module’s anti-cracking and anti-breaking abilities. This makes PA621 more stable and durable than ordinary lightweight or semi-flexible modules and enables it to adapt to various complex application environments.
Innovative Structural Backsheet with Excellent Thermal Insulation
The interlayer and multi-layer structure design of the module significantly improves the structural strength and thermal insulation performance, with a flexural strength ≥ 20 MPa. The low thermal conductivity (0.2 W/(m·k)) of the backsheet effectively reduces the power attenuation caused by high temperatures, providing a powerful guarantee for stable power generation under outdoor high-temperature conditions.
Thermal Conductivity 0.2W (M.K)
Cell-Level Shadow Management Technology
Sungold Anti-Shade Solar Panels Minimises Power Loss By Optimising The Performance Of Each Cell. Our Technology Ensures That Each Cell Operates Efficiently Under Varying Light Conditions.Our Range Of Products Includes Fleixble Solar Panels, Rigid Solar Panels And Other Solar Panels.Designed To Meet The Needs Of Your ScenarioThe PA621 panels incorporates zero hot spot technology, enabling it to supply power stably even under partial shading conditions, reducing the performance and lifespan losses caused by local overheating, and greatly improving the stability and reliability of the module.
Zero Hot Spot Technology
Excellent Waterproof and Moisture-proof Properties
The PA621 lightweight solar panels has Water – proof grade IP68 and outstanding moisture-proof properties, is impermeable to water, does not absorb water, and is resistant to oil, seawater, and chemical corrosion. This ensures that it can maintain stable power generation in various harsh environments and provides a long-term guarantee for outdoor applications.
Waterproof
Easy Installation
The PA621 lightweight solar panels design fully considers installation convenience and can be quickly fixed on balconies and other locations by using cable ties. The installation process only takes about 15 minutes. The lightweight structure and flexible accessory configuration make PA621 applicable to almost any balcony, providing a convenient clean energy solution for urban users.
621 Series Lightweight Solar Module
Environmentally Friendly and Recyclable
The application of glass-free, ultra-lightweight, and environmentally friendly materials makes PA621 comply with the ROHS specification and be free of PFAS. The module can be completely recycled, which is in line with the concept of environmental protection and sustainable development.
Recyclable
Impact Resistance and Surface Scratch Resistance
After undergoing rigorous hail tests, the power attenuation of the module is only 0.12%, and there is no obvious appearance damage. The hardness of the surface weather-resistant coating is ≥ 2H, which is not easy to be scratched during long-term use, ensuring stable power output and extending the service life of the module.
Robust and durable PA621
Laminated Diodes and All-black Appearance
The laminated diodes and zero hot spot technology improve the safety and stability of the module. The all-black appearance enhances the aesthetics and scene adaptability of the module, which is more in line with the aesthetic requirements of modern buildings and vehicles.
all black
What Are the Advantages of PA621 in Different Application Scenarios?
Balcony Power Generation
The lightweight and easy installation of PA621 enable urban residents to directly deploy small photovoltaic systems on balconies to achieve partial self-sufficient power supply, reducing dependence on traditional energy sources and household electricity bills.
RV Applications
For travel RVs, PA621 is a lightweight and sturdy power source that can provide stable power supply during camping or long-distance travel, providing continuous support for lighting, equipment charging, etc.
Rooftop Power Generation
For buildings with large roof areas, the batch installation of PA621 can efficiently utilize solar energy and feed the surplus electricity back to the power grid, bringing economic benefits and clean energy supply to users.
Why Is PA621 Trustworthy?
The PA621 panel has undergone strict tests and complies with the IEC61215 standard, including multiple tests such as insulation, wet leakage, ultraviolet radiation, wet-freezing, thermal cycling, damp heat, hail, and hot spot. The test results show that the module can still maintain excellent performance under harsh conditions. For example, in the damp heat test, the power degradation is only about -1.76% and -1.97%, and in the hail test, the power attenuation is only 0.12%. These data fully prove the long-term stability and reliability of PA621 in harsh environments.
No.
Item
Test situation
Remarks
1
Insulation test
Passed
IEC61215 standard
2
Wet leakage current test
Passed
IEC61215 standard
3
UV pre-treatment test
Passed
IEC61215 standard
4
Wet freezing test
Passed
IEC61215 standard
5
Thermal cycle test
Passed
IEC61215 standard
6
Damp heat test
Passed
IEC61215 standard
7
Hail test
Passed
IEC61215 standard
8
Hot spot test
Passed
IEC61215 standard
Our company currently has five conventional specifications of 100W/120W/135W/150W/180W, and can also customize other specifications. If you have other requirements, please contact us in time!
If you have any other questions,please contact us!
FAQs
What are the main advantages of lightweight solar panels compared to ordinary ones?
Lightweight solar panels are significantly lighter in weight, making installation more convenient. They can reduce installation costs and the load-bearing requirements of the installation site. For example, on buildings with limited roof load-bearing capacity or mobile facilities like recreational vehicles (RVs), they are easier to install and use. Meanwhile, some lightweight solar panels also have good flexibility and can better adapt to irregular installation surfaces, expanding the range of application scenarios.
What is the power generation efficiency of lightweight solar panels? Will it be affected because of the light weight?
Many lightweight solar panels adopt advanced solar cell technologies, such as monocrystalline or polycrystalline silicon solar cells, and their conversion efficiencies are no lower than those of ordinary solar panels. For example, the conversion efficiency of solar cells in some advanced lightweight solar panels can reach over 20%. Although the weight is reduced, through optimizing the performance of solar cells, circuit design, and adopting advanced manufacturing processes, a relatively high power generation efficiency can be ensured to provide users with stable and reliable power output.
What are the special precautions during the installation of lightweight solar panels?
Since lightweight solar panels are relatively light and may have a certain degree of flexibility, it is necessary to ensure that they are firmly fixed during installation to avoid displacement or loosening caused by external forces such as wind. For installations with brackets, the strength and stability of the brackets should be compatible with the weight of the solar panels and the usage environment. Meanwhile, attention should be paid to the sealing and safety of the connecting wires to prevent wire breakage, short circuits, and other problems caused by improper installation, which may affect the normal operation of the power generation system.
Founded in 2008, Shenzhen Sungold Solar Co., Ltd. has always led the way with high-performance photovoltaic modules that can handle harsh environments.Sungold has developed a wide range of adapted products for RVs, yachts, outdoor applications, balcony systems and camping.
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