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HG Group HGT450-72BB 450W Bifacial PERC Monocrystalline Solar Panel
Model HGT450-72BB | Bifacial PERC | 144 Half-Cell Monocrystalline | Bifacial | 1500V System Voltage
Product Overview
The HG Group HGT450-72BB bifacial PERC monocrystalline solar panel delivers reliable 450 watt power for modern solar projects. This high efficiency module uses advanced bifacial cell technology to harvest light from both the front and rear sides. Energy yields are increased while system space is used more effectively than with standard monofacial modules. With panel efficiency up to 20.7 percent, more energy can be produced from the same roof or ground area. The module is engineered around 144 half cut monocrystalline cells, which help reduce resistive losses and improve shade tolerance. Durable tempered glass, an anodized aluminium frame and IP68 junction box protection support long term outdoor performance. The HGT450-72BB is designed for utility, commercial and residential systems where dependable output and strong long term warranties are essential. Its combination of bifacial gain potential and linear power warranty makes this panel a strong choice for investors and installers. Careful thermal management and low temperature coefficients further enhance field performance in demanding climates. Installers can specify this module confidently for projects seeking optimized energy production over a 30 year lifetime.
Key Benefits
High power density: Each module delivers up to 450 Wp at standard test conditions, maximizing output per string. System designers can reduce module count while maintaining target array capacity.
Bifacial energy gain: Bifacial PERC cells capture reflected light from the rear side for additional power generation. Rear side gain can significantly boost annual energy yield on reflective surfaces.
Excellent efficiency: Module efficiency reaches 20.7 percent at STC, helping optimize limited roof or ground space. Higher efficiency supports lower balance of system costs per watt installed.
Robust mechanical design: The panel uses 2.0 mm tempered glass and an anodized aluminium frame for structural strength. Front and rear mechanical load ratings support use in snow and wind prone regions.
Long term performance warranty: A 5 year product power warranty is combined with a 30 year linear output warranty. Power retention is rated at 96.2 percent in year 5 and 84.95 percent in year 30.
Flexible application range: With a maximum system voltage of 1500 V, the module suits large utility arrays. It is equally suitable for commercial rooftops and ground mount systems.
How It Works
The HGT450-72BB bifacial PERC monocrystalline solar panel converts sunlight into usable DC power through advanced cell architecture. Front side irradiance is absorbed by high quality monocrystalline cells arranged in a 144 half cell layout. At the same time, the rear side of the module can utilize reflected light from the ground or mounting surface to generate additional current. Under standard test conditions the module provides 450 Wp of power, while nominal operating cell temperature ratings describe typical field output levels. Generated DC power flows through low resistance busbars and internal wiring to an IP68 rated junction box. From there, MC4 compatible connectors deliver current to string cabling and onward to an inverter or charge controller. Thermal characteristics, including a Pmax temperature coefficient of -0.35 percent per degree Celsius, help maintain predictable performance across a wide temperature range. The panel is specified for operation from minus 40 to plus 85 degrees Celsius, supporting installations in diverse climates. When installed correctly on suitable mounting systems, the module provides stable energy generation for decades. This stable output helps lower the levelized cost of energy across the project lifetime.
Bifacial PERC cell operation: PERC technology introduces a passivated rear surface that improves light capture and carrier collection. In the HGT450-72BB, this structure allows both direct and reflected light to be used for power generation. Rear gain tables show how additional irradiance can raise maximum power beyond 450 W. This enables higher specific energy yields on high albedo surfaces such as white rooftops or light gravel.
Half cell and string layout: The module is built around 144 half cut monocrystalline cells sized at 166 by 83 millimetres. Half cells reduce current through each cell, limiting resistive losses and improving shade tolerance across the module. Current and voltage characteristics at maximum power are 10.96 A and 41.1 V at STC. These values help designers match string configuration to modern high input voltage inverters efficiently.
Thermal and environmental management: The nominal module operating temperature is rated at 45 ± 2 degrees Celsius under defined conditions. Temperature coefficients for Pmax, Voc and Isc ensure predictable performance modelling across seasonal variations. The tempered glass, aluminium frame and IP68 junction box protect active components against moisture and dust ingress. As a result, the electrical characteristics remain stable when the panel is installed in harsh outdoor environments.
Technical Specifications
| Module type | Bifacial PERC monocrystalline solar panel |
| Model number | HGT450-72BB (HG-T Series) |
| Power range | 440 Wp to 460 Wp series, 450 Wp nominal for this model |
| Maximum power at STC (Pmax) | 450 Wp |
| Maximum power at NMOT (Pmax) | 333 Wp |
| Module efficiency | 20.7% (range 20.2% to 21.2% across series) |
| Power tolerance | 0 ~ +1% power tolerance, 0 ~ +5 W across series |
| Voltage at maximum power (Vmpp, STC) | 41.1 V |
| Current at maximum power (Impp, STC) | 10.96 A |
| Open circuit voltage (Voc, STC) | 50.0 V |
| Short circuit current (Isc, STC) | 11.83 A |
| Rear side gain example (450 W) | Up to 587 W at 30% rear gain, with increased Isc and Imp values |
| 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 |
| External dimensions (H × W × D) | 2094 × 1038 × 30 mm |
| Weight | 27 kg |
| Cell size and type | 166 × 83 mm monocrystalline, 144 half cells (6 × 24 layout) |
| Front glass | 2.0 mm tempered solar glass |
| Frame material | Anodized aluminium alloy frame |
| Junction box | IP68 rated junction box with 3 bypass diodes |
| Connector type | MC4 compatible connectors |
| Output cable | 4.0 mm², 200 mm (+) and 300 mm (-) standard, customizable length |
| Mechanical load rating | 5400 Pa front side, 2400 Pa rear side |
| Packaging configuration | 36 pcs per box, 792 pcs per 40' HQ container |
| Manufacturer and origin | Chongqing HG New Energy Group Co., Ltd, China |
Certifications & Compliance
Certifications: HG-T series modules are produced under an ISO45001 based quality management system, supporting consistent safety and occupational health standards during manufacturing.
Inverter Compatibility: Compatible with most modern grid tied and off grid string and central inverters rated for 1500 V DC systems; string sizing should follow inverter datasheets and local electrical codes.
Environmental: Designed for outdoor installation with IP68 junction box protection and high mechanical load ratings; suitable for harsh climate conditions when installed to manufacturer guidelines.
Warranty: Linear power warranty with 5 years at 96.2% of initial power and 30 years at 84.95% of initial power; product and workmanship coverage follows HG Group warranty terms.
Documentation
Product Datasheet (PDF)● Available | Contact us for lead time and pricing
| SKU | PES-SPS-SOL-7629 |
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| Manufacturer | PES Supply |
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