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SEG Solar SEG-475-BTB-BG 475W N-Type TOPCon Bifacial Solar Panel
Model SEG-475-BTB-BG | N-Type TOPCon | 120 Half-Cell | Bifacial | 1500V System Voltage
Product Overview
The SEG Solar SEG-475-BTB-BG 475W N-Type TOPCon bifacial solar panel is engineered for high efficiency, long life, and reliable performance in demanding conditions. This premium module uses advanced N-Type TOPCon cell technology with a bifacial design to capture energy from both the front and rear sides. Power output up to 475 watts is delivered while module efficiency reaches up to 22.17 percent under standard test conditions. This makes the panel an ideal choice for residential rooftops, commercial arrays, and utility scale projects where space is valuable. The double glass construction and robust anodized aluminum frame provide excellent mechanical strength and long term durability. Temperature coefficients are optimized to support stable performance in hot climates and cold environments alike. With a 30 year linear power warranty and a 15 year product warranty, dependable energy production and bankable returns are supported over the full system lifetime. This SEG Solar 475W module helps reduce energy costs and supports lower carbon footprints while maintaining high quality and safety standards.
Key Benefits
High power density in compact footprint: Up to 475 watts of output is delivered from a 1909 x 1134 mm module, so more energy is produced from limited roof or ground space.
Advanced N-Type TOPCon cell technology: N-Type cells with TOPCon architecture reduce degradation, enhance low light performance, and support higher efficiency over the panel lifetime.
Bifacial design for extra yield: Energy is harvested from both sides of the module, increasing total system yield when installed over reflective surfaces or bright ground coverings.
Robust double glass construction: 2 mm anti reflection coated front glass and low iron rear glass improve durability and weather resistance while supporting long term optical performance.
Long term peace of mind: A 15 year product warranty and a 30 year linear power warranty with 87.4 percent end of life output help secure project returns and lower levelized energy cost.
Excellent thermal performance: Low power temperature coefficient of -0.30 percent per degree Celsius supports better performance in hot climates and on high irradiance sites.
How It Works
This SEG Solar bifacial TOPCon module converts sunlight into clean DC electricity using advanced N-Type monocrystalline cells. Each cell is designed to minimize electron recombination, so more of the captured light is turned into usable power. The front side of the panel receives direct sunlight while the rear side harvests reflected light from the surrounding environment. This bifacial effect can increase total energy generation compared to a standard monofacial module. The half cell layout reduces resistive losses and helps mitigate the impact of partial shading on output. Double glass construction protects the cells from moisture, mechanical stress, and environmental pollutants. The generated DC current flows through the integrated junction box and MC4 compatible connectors to the system inverter. The inverter converts DC power into AC power for homes, businesses, or grid export. Stable performance is maintained over a broad temperature range thanks to optimized temperature coefficients and high quality materials. Over the lifetime of the system, this design supports reliable daily production and strong project economics.
N-Type TOPCon cell conversion: Photons strike the N-Type monocrystalline TOPCon cells and free electrons are generated within the silicon structure. These electrons are guided by the cell’s passivated contacts and busbars, producing a stable DC current with reduced internal losses over time.
Bifacial energy capture: The front glass absorbs direct solar irradiance while the rear glass collects light reflected from roofs, ground, or nearby surfaces. This rear side contribution increases daily yield, especially on light colored or high albedo surfaces, boosting the overall system performance ratio.
System integration and output: Current from the half cell strings is combined in the IP68 junction box, which uses three bypass diodes to improve behavior under partial shading. MC4 compatible connectors link the module to string cabling, which is then routed to an inverter that converts DC to AC power for on site consumption or export.
Technical Specifications
| Module Type | SEG-475-BTB-BG |
| Manufacturer | SEG Solar Inc., United States |
| Cell Technology | N-Type TOPCon monocrystalline, half cell |
| Cell Size | 182 x 91 mm cells (120 pcs) |
| Module Power Range | 465 Wp to 480 Wp (series range) |
| Maximum Power (Pmax) – Front (STC) | 475 Wp |
| Power Tolerance | 0 to +3 % |
| Module Efficiency (front, STC) | Up to 21.94 % to 22.17 % depending on configuration |
| Voltage at Maximum Power (Vmpp) – Front | 35.8 V (front, 475 Wp rating) |
| Current at Maximum Power (Impp) – Front | 13.27 A (front, 475 Wp rating) |
| Open Circuit Voltage (Voc) – Front | 43.0 V |
| Short Circuit Current (Isc) – Front | 13.94 A |
| Nominal Operating Cell Temperature (NOCT) | 45 ± 2 °C |
| Operating Temperature Range | -40 °C to +85 °C |
| Temperature Coefficient of Pmax | -0.30 % / °C |
| Temperature Coefficient of Voc | -0.25 % / °C |
| Temperature Coefficient of Isc | +0.046 % / °C |
| Maximum System Voltage | 1500 V DC |
| Series Fuse Rating | 30 A |
| Module Dimensions (H x W x D) | 1909 x 1134 x 30 mm |
| Weight | 27.3 kg |
| Front Glass | 2.0 mm AR coated semi tempered glass |
| Back Glass | Low iron glass, bifacial design |
| Frame Material | Anodized aluminium alloy frame |
| Junction Box | IP68 rated junction box with 3 bypass diodes |
| Connector Type | MC4 compatible connectors |
| Cable Type and Length | 12 AWG PV wire, 1200 mm leads |
| Mechanical Load Rating (Front) | 5400 Pa / 113 psf* |
| Mechanical Load Rating (Rear) | 2400 Pa / 50 psf* |
| Total Degradation after 30 Years | 87.4 % of initial power guaranteed after 30 years |
*Refer to SEG Solar installation manual for full load conditions and mounting guidance.
Certifications & Compliance
Certifications: IEC 61215:2016, IEC 61730:2016, UL 1703, UL 61730, CEC listing, IEC 62804 PID resistance, IEC 61701 salt mist, IEC 62716 ammonia resistance, IEC 60068 dust and sand, IEC 61215 hailstone tests, Fire Type 2 (UL 61730).
Inverter Compatibility: Compatible with most modern string and central inverters designed for up to 1500 V DC systems, with MPPT voltage windows that align with the module’s Vmpp range.
Environmental: Designed and manufactured under ISO 9001 quality management, ISO 14001 environmental management, and ISO 45001 occupational health and safety standards for consistent, responsible production.
Warranty: 15 year product warranty covering materials and workmanship, plus a 30 year linear power output warranty with maximum 0.42 percent annual degradation and at least 87.4 percent of initial power guaranteed in year 30.
Documentation
Product Datasheet (PDF)● Available | Contact us for lead time and pricing
| SKU | PES-SPS-SOL-16387 |
|---|---|
| Manufacturer | PES Supply |
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