Bifacial Solar Panel SG-DG Series
Sungold SG-DG series double-sided solar panels feature a double-layered tempered glass structure, offering high weather resistance and power generation efficiency, making them suitable for various environments.
Designed specifically for your market needs.
Make full use of every ray of sunshine.
Future power, double efficiency, double durability.
Sungold bifacial solar panels with bifacial power generation technology increase efficiency by 22%. Multi-slice process reduces the risk of hot spots, double-glass structure enhances durability and service life, extending service life to 30 years.
Wear-resistant, insulated, waterproof, adaptable to high temperature and high humidity environments. class A fireproof, suitable for residential houses and chemical plants. Vertical installation flexibility, suitable for fencing, BIPV curtain wall and many other occasions.
Bifacial Solar Panel SG-DG Series
Certified Excellence, Long Lasting Durability
CE & RoHS certified, 12 years warranty commitment, 30 years long service life - your professional and durable choice.
Understand the Technology
The best bifacial solar panels for efficiency and durability.

Bifacial Power Generation
Double- glass modules are able to absorb sunlight from two directions due to their double-sided design, thus increasing the efficiency of power generation. Under ideal conditions, double-glazed modules can generate 5% to 22% more power compared to single-glazed modules.

Reduced Hot Spot
With the use of multi-cut cells, the current is lowered, reducing localized overheating caused by current concentration. The glass backsheet has better heat dissipation performance, effectively reducing hot spots.

30- Year Warranty
Adopting glass backsheets with excellent waterproof performance effectively prevents water vapor from eroding the internal materials of the modules. This significantly reduces power loss and extends the service life of the module to about 30 years.

Certifications
SG-DG SERIES TESTING
Sungold SG-DG series bifacial solar panels are CE and RoHS certified, ensuring superior quality and safety. After a series of rigorous tests, including UV, humidity and heat resistance, thermal cycling and static mechanical load tests, they have demonstrated excellent reliability and durability under a variety of environmental conditions.
Product Specifications
| Model | SG-DG-145W | SG-DG-175W | SG-DG-230W | SG-DG-260W | SG-DG-350W | SG-DG-390W |
|---|---|---|---|---|---|---|
| Open Circuit Voltage | 27.1V | 32.5V | 32.5V | 24.5V | 48.9V | 36.6V |
| Operating Voltage | 23.2V | 27.8V | 27.8V | 20.9V | 41.8V | 31.3V |
| Short Circuit Current | 6.56A | 6.61A | 8.69A | 13.06A | 8.79A | 13.08A |
| Operating Current | 6.26A | 6.30A | 8.28A | 12.45A | 8.38A | 12.47A |
| Max System Voltage | DC 1500V | |||||
| Cell type | Mono cell | |||||
| Cell Efficiency | 22.70% | |||||
| Back sheet | Glass | |||||
| Color | Silver frame with white back | |||||
| Warranty | 12 years | |||||
| Weight | 10.6kg | 12.5kg | 15.8kg | 17.4kg | 22.3kg | 24.6kg |
| Module dimension | 1030*770*30mm | 1225*770*30mm | 1595*770*30mm | 1770*770*30mm | 1595*1134*30mm | 1770*1134*30mm |
| Customize service | SUNGOLD offer customize service,please refer to our website or ask SUNGOLD workers for more sizes and the latest parameters. | |||||
Bifacial Power Generation Technology
Bifacial solar panels can absorb sunlight from both sides. In addition to the 22.7% power generation efficiency, under ideal conditions, double-glazed modules offer a power generation gain of up to 22%.
Different installation environments can bring about different power generation gain effects, making it ideal for installations where the back side is exposed and can capture reflected light, including ground-mounted systems, solar carports and canopies.
Reduced hot spot formation
Sungold's double-glass modules have a significantly lower chance of hot spot effects compared to single-glass panels at the same power and voltage. Through the multi-slice process, the current in the cell is halved, reducing heat generation.
Meanwhile, the glass backsheet enhances the heat dissipation performance. This makes the hot spot effect in double glass modules half as likely or less than in single glass panels, ensuring greater safety and stability.
Adapting to Extreme Weather
Sungold bifacial solar panels are designed to withstand snow loads of 5,400Pa on the front side, ensuring that they can still function properly in areas with heavy snow accumulation. Meanwhile, the wind load of 2400Pa on the back side guarantees stability and safety in windy weather.
The application of IP68 protection rating enables the module to maintain reliability in hot, humid and dusty climatic conditions.
30 - Year Power Warranty
The glass backsheet significantly reduces power loss due to water vapor infiltration and reduces module life, extending its service life to approximately 30 years.
In addition, a 12-year material and workmanship warranty, a 30-year linear warranty, and a 30-year power warranty with a linear power degradation of only 0.45% ensure a long-term return on investment.
Explore More Application Possibilities
In addition to traditional installations, bifacial solar panels can be mounted vertically on fences, BIPV curtain walls and soundproof walls to increase energy yield.
The high durability of bifacial modules makes them ideal for sunrooms, agro-photovoltaic and fishery-photovoltaic projects, realizing efficient use of space and resources.
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