Bifacial Solar Panel | 690Wp | 40.10V | 22.20% | 2384x1303x33/35 mm | 40HQ: 594 / 558 Pieces
GRANKIA GT690W-132M best solar panels topcon photovoltaic module 690w is not only functional but also visually appealing, blending seamlessly into both residential and commercial installations.
By combining high efficiency, bifacial technology, and robust construction, the best solar panels maximize energy output and ensures a faster return on investment. It is an ideal choice for projects looking to reduce the overall cost per watt and achieve higher energy yields over time.
The best solar panels 690w uses a cutting-edge cell architecture that reduces internal power losses, allowing the module to achieve higher efficiency and reliability. The design also optimizes energy output by reducing the likelihood of issues such as hot spots or microcracks.

Improved Shading Tolerance
The bifacial nature of the module not only increases energy generation from reflected light but also enhances shading tolerance. The best solar panels 690w perform better than traditional mono-facial modules in partially shaded environments, helping to minimize the loss of energy production.
Advanced Anti-reflective Coating
The solar panels are equipped with a sophisticated anti-reflective coating, which reduces light reflection and increases the amount of light absorbed by the solar cells. This coating improves the module’s overall efficiency, especially in areas with high levels of direct sunlight.
Low Light Performance
These solar panels are engineered to perform exceptionally well in low-light conditions, such as cloudy days or early mornings. This capability ensures that homeowners can still generate electricity even when sunlight is not at its peak.
PID Resistance
The bifacial solar module can be resistant to Potential Induced Degradation (PID), a common issue that can affect solar panel performance over time. This resistance helps maintain the panel’s efficiency and longevity, ensuring reliable energy output throughout its lifespan.
High Mechanical Load Tolerance
Designed to withstand heavy mechanical loads, this topcon photovoltaic module 690w is built to perform in both residential and commercial installations where wind or snow load could be a concern. The robust construction ensures that it remains operational even in challenging weather conditions.
| Model No. | GT690W-132M |
| Warranty | |
| Product Warranty | 12 Years |
| Power Warranty | 30 Years warranty for Extra Linear Power Output |
| Electrical Data at STC | |
| Maximum Power (Pmax) | 690Wp |
| Voltage at Pmax (Vmpp) | 40.10V |
| Current at Pmax (Impp) | 17.23A |
| Open Circuit Voltage (Voc) | 47.90V |
| Short Circuit Current (Isc) | 18.25A |
| Panel Efficiency | 22.20% |
| Power Tolerance | 0 ~ +5W |
| Standard Test Conditions (STC): air mass AM 1.5, irradiance 1000W/m2, cell temperature 25°C Bifacial NamePlate Irradiance (BNPI): front 1000W/m2, rear 135W/m2, AM 1.5, cell temperature 25°C |
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| Thermal Ratings | |
| Operating Temperature Range | -40 °C ~ 85 °C |
| Temperature Coefficient of Pmax | -0.24 %/°C |
| Temperature Coefficient of Voc | -0.22 %/°C |
| Temperature Coefficient of Isc | 0.047 %/°C |
| Maximum Ratings | |
| Maximum System Voltage | 1500VDC (IEC) |
| Maximum Series Fuse | 30A |
| Material Data | |
| Panel Dimension (H/W/D) | 2384x1303x33/35 mm |
| Weight | 38.0Kg |
| Cell Type | 210mm MBB N-TOPCon |
| Cell Number | 132Pcs (6x11x2) |
| Glass | 2.0mm, Tempered Glass |
| Frame Type | Anodized Aluminium Alloy, Silver Color |
| Junction Box | Potted, IP68, 1500VDC |
| Connector Type | MC4 Connectors |
| Cable | 4.0mm2, 300mm / Customized |
| Packing Information | |
| Quantity / Pallet | 33 Pieces / Pallet or 31 Pieces / Pallet |
| 40HQ Container Load | 594 Pieces / 558 Pieces |