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SEG Solar SEG-470-BTB-BG 470W N-Type TOPCon Bifacial Solar Panel
Model SEG-470-BTB-BG | N-Type TOPCon | 120 Half-Cell | Bifacial | 1500V System Voltage
Product Overview
The SEG Solar SEG-470-BTB-BG N-Type TOPCon bifacial solar panel delivers 470 watts of high-efficiency power for residential, commercial, and utility projects. This premium module pairs advanced N-type TOPCon cell technology with a bifacial design to capture sunlight from both sides of the panel for increased energy yield. With a module efficiency up to 22.17%, this panel helps maximize power density where roof or ground space is limited and long term output matters. Its monocrystalline half-cell layout improves reliability and reduces resistive losses for stable performance in real-world conditions. The double-glass construction, robust frame, and IP68-rated junction box ensure dependable operation in harsh climates with wind, snow, sand, and salt exposure. Backed by a 15-year product warranty and a 30-year linear power warranty, the SEG-470-BTB-BG offers a dependable long term energy solution with minimal degradation over time.
Key Benefits
High power density for limited space: The 470 W output and up to 22.17% efficiency allow more energy production from smaller roofs or arrays. This makes the panel ideal where project space is constrained but energy targets remain ambitious.
Advanced N-type TOPCon technology: N-type TOPCon cells deliver lower degradation, better low light response, and improved performance at high temperatures. This helps maintain strong production throughout hot summers and across the full service life.
Bifacial design for higher energy yield: The bifacial glass-glass structure converts light hitting the rear side into additional power. When installed over reflective surfaces, energy yield can increase significantly compared to monofacial modules.
Durable double-glass construction: Front and back 2.0 mm semi-tempered glass provide excellent mechanical strength and environmental protection. The module withstands high snow and wind loads, supporting long term reliability in demanding sites.
Long-term warranty confidence: A 15-year product warranty and 30-year linear performance warranty with only 0.42% annual degradation secure long-term investment value. System owners benefit from predictable output and reduced lifetime energy costs.
How It Works
The SEG Solar SEG-470-BTB-BG solar panel works by converting sunlight into direct current electricity through high efficiency N-type TOPCon monocrystalline cells. Each half-cut cell generates power when photons strike the silicon and release electrons, creating an electric current across the cell surface. These cells are interconnected into a 120 half-cell layout that reduces resistive losses and improves shade tolerance under partial obstruction. The bifacial glass-glass design captures light on both the front and rear sides, increasing total energy yield over reflective surfaces like white roofs, concrete, or light gravel. Produced current flows through the integrated MC4-compatible connectors to the DC cabling and onward to the inverter, where it is converted into AC electricity usable by homes, businesses, or the grid. Integrated bypass diodes inside the IP68 junction box help protect the string during shading or mismatch events, maintaining stable system performance. The module is engineered to operate between -40°C and 85°C, with optimized temperature coefficients that limit power loss on very hot days. Over time, a controlled degradation rate and robust materials ensure that energy production stays strong across the full thirty-year warranty period.
N-Type TOPCon cell conversion: Sunlight strikes the N-type TOPCon monocrystalline cells and frees electrons within the silicon structure. The cell design reduces recombination losses, so more of the captured light becomes usable electric current with higher efficiency and lower degradation.
Bifacial double-glass energy capture: The front glass receives direct sunlight while the rear glass collects reflected and diffused light from the ground or nearby surfaces. Both sides feed power into the same circuit, which increases total kilowatt-hour yield compared with similar monofacial designs.
System integration and protection: Current from the cells travels through three bypass diodes in the IP68 junction box, which protect against hot-spots in shaded sections. The 1500 V system voltage rating and 30 A series fuse rating support integration into modern high-voltage arrays with long DC strings.
Technical Specifications
| Module Type | SEG Solar SEG-470-BTB-BG N-Type TOPCon Bifacial Module |
| Cell Technology | N-TOPCon monocrystalline half-cell |
| Cell Size | 182 × 91 mm (120 pcs) |
| Cell Count & Layout | 120 half-cells, bifacial glass-glass construction |
| Technology Type | Bifacial N-Type TOPCon, monocrystalline |
| Power Range for Series | 465 Wp to 480 Wp (YUKON N Series) |
| Maximum Power (Pmax) | 470 Wp front side at STC |
| Panel Efficiency | Up to 22.17% module efficiency, typical range 21.48% to 22.17% |
| Voltage at Maximum Power (Vmpp) | 35.6 V (front side, STC) |
| Current at Maximum Power (Impp) | 13.21 A (front side, STC) |
| Open Circuit Voltage (Voc) | 42.8 V (front side, STC) |
| Short Circuit Current (Isc) | 13.88 A (front side, STC) |
| Rear-Side Rated Power (Reference) | 353 Wp rear side under specified bifacial test conditions |
| Rear Vmpp / Impp / Voc / Isc | Vmpp 33.4 V, Impp 10.57 A, Voc 40.66 V, Isc 11.1 A (rear reference) |
| Power Tolerance | 0 to +3% |
| Maximum System Voltage | 1500 V DC (IEC/UL) |
| Series Fuse Rating | 30 A |
| Operating Temperature Range | -40°C to +85°C |
| Nominal Operating Cell Temperature (NOCT) | 45 ± 2°C |
| Temperature Coefficient of Pmax | -0.30% / °C |
| Temperature Coefficient of Voc | -0.25% / °C |
| Temperature Coefficient of Isc | +0.046% / °C |
| External Dimensions (H × W × D) | 1909 × 1134 × 30 mm |
| Panel Weight | 27.3 kg |
| Front / Back Glass | 2.0 mm AR coating semi-tempered glass / low-iron rear glass |
| Glass Type and Thickness | Anti-reflection coating glass, 2 mm thickness each side |
| Frame Material | Anodized aluminium alloy frame |
| Junction Box Rating / Diodes | IP68 junction box with 3 bypass diodes |
| Connector Type | MC4 compatible connectors |
| Cable Type / Length | 12 AWG PV wire (UL), 1200 mm length |
| Mechanical Load Capacity (Front) | 5400 Pa / 113 psf (front side load) |
| Mechanical Load Capacity (Rear) | 2400 Pa / 50 psf (rear side load) |
Certifications & Compliance
Certifications: IEC 61215:2016, IEC 61730:2016, UL 1703, UL 61730, ETL, CEC listing, IEC 62804 (PID resistance), IEC 61701 (salt mist), IEC 62716 (ammonia resistance), IEC 60068 (dust and sand), hailstone resistance, Fire Type 2 (UL 61730).
Inverter Compatibility: Designed for use with modern string and central inverters rated up to 1500 V DC system voltage. Compatible with leading residential, commercial, and utility-scale inverter platforms when string sizing and current limits are observed.
Environmental: Built with double-glass construction for enhanced durability in coastal, agricultural, and desert environments. Manufacturing and quality systems follow ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 standards for quality, environmental management, and occupational safety.
Warranty: 15-year product warranty on materials and workmanship plus 30-year linear power output warranty. Total degradation is limited to 12.6% after 30 years, with an expected remaining power of 87.4% of the original nameplate rating and typical annual degradation of around 0.42% after the first year.
Documentation
Product Datasheet (PDF)● Available | Contact us for lead time and project-specific pricing
| SKU | PES-SPS-SOL-16386 |
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| Manufacturer | PES Supply |
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