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Vertex S Series | 120 Half-Cell Monocrystalline | 20.0% Efficiency | 70±5% Bifaciality
The Trina Solar Vertex S TSM-DE09C.07 385W is a compact bifacial monocrystalline solar module designed for residential and commercial rooftop applications. Featuring 120 half-cut monocrystalline solar cells and multi-busbar technology, the module delivers 385W of peak power with approximately 20.0% module efficiency. Its bifacial construction provides a 70±5% power bifaciality rating, allowing the rear side of the module to capture additional reflected irradiance where installation conditions are suitable. With dimensions of 1,754 × 1,096 × 30 mm and a weight of approximately 21.0 kg, the Vertex S is designed to provide high power density while remaining relatively compact and easy to handle. The module supports up to 1,500V DC systems and is engineered for long-term outdoor operation from -40°C to +85°C.
385W High Power Output: Provides 385W of rated power with a positive power tolerance of 0 to +5W, helping maximize energy generation from available installation space.
Bifacial Solar Technology: The module has a 70±5% power bifaciality rating, allowing the rear side to utilize reflected and diffuse irradiance for additional energy generation when site conditions support bifacial operation.
120 Half-Cell Design: The 120-cell configuration uses half-cell technology to reduce electrical resistance and improve module performance and reliability.
Multi-Busbar Technology: Multi-busbar cell technology improves light utilization, reduces series resistance, and supports higher current performance.
Compact Vertex S Format: The 1,754 × 1,096 mm module footprint provides a practical solution for residential and C&I rooftops where available roof space is limited.
High Mechanical Load Rating: The module is rated for mechanical loads up to 6,000 Pa positive and 4,000 Pa negative, supporting installation in demanding environmental conditions.
Long-Term Warranty: Trina Solar specifies a 25-year product workmanship warranty and a 25-year power warranty for the Vertex S module series.
The Trina Solar TSM-DE09C.07 converts sunlight into DC electricity through monocrystalline photovoltaic cells. Direct sunlight is captured on the front of the module while the bifacial architecture allows the rear side to utilize reflected and diffuse light. The transparent backsheet enables rear-side irradiance to reach the bifacial cells, potentially increasing total energy yield compared with conventional monofacial modules.
Half-Cell Architecture: The 120 half-cell design helps reduce internal electrical resistance and supports efficient current flow throughout the module.
Bifacial Energy Capture: The rear side can capture reflected irradiance from surfaces beneath and around the module. Actual additional production depends on mounting height, ground reflectivity, row spacing, shading, and other site conditions.
High-Density Interconnect: The Vertex S platform combines high-density interconnect and multi-busbar technologies to maximize power generation from the module footprint.
| Manufacturer | Trina Solar |
| Series | Vertex S |
| Model Number | TSM-DE09C.07 |
| Rated Power (Pmax) | 385 W |
| Power Tolerance | 0 to +5 W |
| Module Efficiency | 20.0% |
| Cell Type | Monocrystalline Silicon |
| Number of Cells | 120 Half Cells |
| Maximum Power Voltage (Vmpp) | 33.4 V |
| Maximum Power Current (Impp) | 11.54 A |
| Open Circuit Voltage (Voc) | 38.0 V |
| Short Circuit Current (Isc) | 13.00 A |
| Maximum System Voltage | 1,500 V DC |
| Maximum Series Fuse Rating | 25 A |
| Temperature Coefficient of Pmax | -0.34%/°C |
| Temperature Coefficient of Voc | -0.25%/°C |
| Temperature Coefficient of Isc | +0.04%/°C |
| NOCT | 43°C ± 2°C |
| Operating Temperature | -40°C to +85°C |
| Module Dimensions | 1,754 × 1,096 × 30 mm (69.06 × 43.15 × 1.18 in) |
| Module Weight | 21.0 kg (46.3 lbs) |
| Front Glass | 3.2 mm High Transmission, AR-Coated Heat-Strengthened Glass |
| Frame | 30 mm Anodized Aluminum Alloy |
| Bifaciality | 70 ± 5% |
| Backsheet | Transparent Backsheet |
Illustrative output based on the 385W front-side nameplate rating. Actual bifacial gain depends on site conditions and rear-side irradiance.
| Front-Side Rated Output | 385 W |
| 5% Additional Energy | 404 W equivalent |
| 10% Additional Energy | 424 W equivalent |
| 15% Additional Energy | 443 W equivalent |
| 20% Additional Energy | 462 W equivalent |
Positive Mechanical Load: Up to 6,000 Pa
Negative Mechanical Load: Up to 4,000 Pa
Operating Temperature: -40°C to +85°C
Bifacial Construction: Transparent backsheet and 70±5% power bifaciality rating support rear-side energy generation.
Product Certifications: IEC 61215 / IEC 61730 / IEC 61701 / IEC 62716 / UL 61730
Quality Management: ISO 9001
Environmental Management: ISO 14001
Occupational Health & Safety: ISO 45001
Product Workmanship Warranty: 25 Years
Performance Warranty: 25 Years
First-Year Degradation: 2%
Annual Power Attenuation: 0.55% per year
Residential Rooftops: Compact module dimensions make the Vertex S suitable for residential rooftop solar installations.
Commercial & Industrial Rooftops: High power density and bifacial capability provide a flexible solution for C&I rooftop projects.
Bifacial Ground-Mount Systems: The 70±5% bifaciality rating can provide additional energy generation where rear-side irradiance is available.
Space-Constrained Solar Projects: The Vertex S format combines a compact footprint with up to 405W within the product range, making it useful where roof area is limited.
| Modules per Box | 36 Modules |
| Modules per 40' Container | 828 Modules |
● Available | Contact us for current pricing, inventory, and lead time
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