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HG Group HGT445-72BB 445W Bifacial PERC Monocrystalline Solar Panel
Model HGT445-72BB | Bifacial PERC Monocrystalline | 144 Half-Cell 166×83 mm | Bifacial | 1500V System Voltage
Product Overview
The HG Group HGT445-72BB 445W bifacial PERC monocrystalline solar panel delivers high efficiency power generation for commercial and residential arrays. This advanced module uses bifacial PERC cell technology to convert light from both the front and rear sides. Energy yield is increased over conventional monofacial panels under suitable installation conditions. The panel offers a rated maximum power of 445 W at standard test conditions with a module efficiency of 20.5%. Power remains stable thanks to a positive tolerance from 0 to +1 percent. Engineers and installers gain flexibility with a maximum system voltage rating of 1500 V. The robust design suits large scale ground mounts, commercial rooftops, and demanding environments. With its slim 30 mm frame, 27 kg weight, and 2094×1038 mm footprint, the module balances high output with manageable handling on site. This HGT445-72BB panel forms part of the HG-T series and sits within a power range of 440 to 460 watts. It is manufactured by Chongqing HG New Energy Group Co., Ltd in China, a specialist in bifacial monocrystalline modules. Careful cell layout and reliable materials support long term performance in diverse climates.
Key Benefits
High power density: The module delivers 445 W of rated output in a slim, space efficient footprint. This helps maximize energy production where roof or ground area is limited.
Bifacial energy gain: Bifacial PERC cells can harvest reflected light from the rear side. When installed over high albedo surfaces, overall yield can rise significantly compared to monofacial modules.
Reliable long term performance: A linear power warranty supports 96.2% output at year five and 84.95% at year thirty. A low total degradation rate of 0.5 percent per year helps protect lifetime returns.
Robust environmental tolerance: The operating temperature range extends from -40 to 85 °C. Strong mechanical loading capability and IP68 junction box protection enhance durability in harsh field conditions.
Flexible system integration: A maximum system voltage of 1500 V and a 20 A series fuse rating support long strings. This suits large arrays and helps reduce balance of system costs for installers.
Quality construction materials: Tempered 2.0 mm glass, anodized aluminium frame, and three diode IP68 junction box are used. These components are selected to support long field life and stable performance.
How It Works
This HGT445-72BB solar panel converts sunlight into direct current electricity using high efficiency monocrystalline bifacial PERC cells. Light striking the front glass is absorbed by the silicon cells and converted into electrical energy. Reflected light reaching the rear side can also be harvested, increasing the effective energy yield per module. At standard test conditions the panel produces a maximum power of 445 W with a voltage at maximum power of 41 V. Current at maximum power reaches 10.86 A, which then flows through the junction box and cables to the system inverter. The inverter converts the direct current into alternating current suitable for site loads or grid export. Temperature coefficients are optimized so that output decreases only moderately as cell temperature rises. The durable frame, glass, and encapsulation protect the cells against moisture, dust, and mechanical stress over decades of service.
Bifacial PERC cell operation: Each 166×83 mm cell uses passivated emitter and rear cell technology to enhance light absorption. The PERC structure improves internal reflection and boosts conversion efficiency.
Front and rear side energy capture: The front side operates like a conventional module, capturing direct and diffuse sunlight. The rear side uses bifacial design to capture reflected light from surfaces such as concrete, white membranes, or light gravel.
Electrical output and system connection: Electric current generated by the cells flows through three bypass diodes in the IP68 junction box. Factory fitted cables and connectors route power to string wiring, then onward to the inverter and protection devices.
Technical Specifications
| Brand / Manufacturer | Chongqing HG New Energy Group Co., Ltd |
| Model Number | HGT445-72BB (HG-T Series) |
| Cell Technology | Bifacial PERC monocrystalline |
| Cell Size | 166 × 83 mm |
| Cell Configuration | 144 cells (6 × 24) half-cell layout |
| Module Type | Bifacial monocrystalline solar panel |
| Power Range (Series) | 440 Wp to 460 Wp (HG-T series) |
| Maximum Power (Pmax, STC) | 445 Wp |
| Maximum Power (Pmax, NMOT) | 330 Wp |
| Power Tolerance | 0 to +1 % |
| Module Efficiency (STC) | 20.5 % |
| Panel Efficiency Range (Series) | 20.2 % to 21.2 % |
| Voltage at Maximum Power (Vmpp, STC) | 41.0 V |
| Current at Maximum Power (Impp, STC) | 10.86 A |
| Open Circuit Voltage (Voc, STC) | 49.9 V |
| Short Circuit Current (Isc, STC) | 11.72 A |
| Nominal Module Operating Temperature (NMOT) | 45 ± 2 °C |
| Operating Temperature Range | -40 °C to +85 °C |
| Temperature Coefficient of Pmax | -0.35 % / °C |
| Temperature Coefficient of Voc | -0.26 % / °C |
| Temperature Coefficient of Isc | +0.047 % / °C |
| Maximum System Voltage | 1500 V DC |
| Series Fuse Rating | 20 A |
| Panel Dimensions (H × W × D) | 2094 × 1038 × 30 mm |
| Weight | 27 kg |
| Front Glass | 2.0 mm tempered glass |
| Frame Material | Anodized aluminium alloy frame |
| Junction Box | IP68 junction box, 3 bypass diodes |
| Connector Type | MC4 compatible connectors |
| Mechanical Load Capacity | 5400 Pa front / 2400 Pa back |
| Packaging Configuration | 36 pcs per box, 792 pcs per 40' HQ container |
Certifications & Compliance
Certifications: ISO45001 quality and safety management system for the HG-T series modules.
Inverter Compatibility: Designed for modern grid tied and off grid inverters within 1500 V DC system limits. String sizing must follow inverter and code requirements.
Environmental: IP68 junction box and robust glass and frame support reliable outdoor use in varied climates.
Warranty: Linear power warranty with 96.2% of rated output at year 5 and 84.95% at year 30, corresponding to a low annual degradation rate of 0.5 percent under standard conditions.
Documentation
Product Datasheet (PDF)● Available | Contact us for lead time and pricing
| SKU | PES-SPS-SOL-7626 |
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| Manufacturer | PES Supply |
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