Scaling up your solar game for a big commercial or utility project and want panels that punch above their weight in power and efficiency, the Trina Solar 705W bifacial panel (Vertex N TSM-NEG21C.20) is a top contender that’s built on cutting-edge N-type i-TOPCon tech. This bifacial beast captures sunlight from both sides, so with a good reflective surface underneath—like white gravel or a light-colored roof—you could see up to 20-30% extra energy harvest, making it ideal for sunny spots like Kenya where every watt counts. At 705W, it’s designed to minimize the number of panels and cables needed, slashing installation and balance-of-system costs while delivering reliable output even in low light or scorching heat. The dual-glass construction keeps it tough against wind, snow, hail, and environmental nasties like salt or ammonia, so it’s perfect for harsh conditions. Hook it up to your inverter for grid-tied or off-grid setups, and you’ll be on track for lower energy bills and a smaller carbon footprint over decades—Trina’s got your back with solid warranties and low degradation rates.
Trina Solar 705W bifacial panel Key Features
- Bifacial Dual-Glass Module: 80±5% bifaciality for additional power gain from the rear side (up to 10-20% depending on albedo); 2.0mm heat-strengthened AR-coated glass on both sides for superior durability, fire resistance (IEC Class C), and resistance to PID, LID, and LeTID.
- N-type i-TOPCon Cells: Advanced monocrystalline technology with SMBB and non-destructive cutting for minimized micro-cracks, high efficiency up to 22.7%, and excellent low-irradiation performance—keeps generating even on cloudy days or in high temps.
- Ultra-High Power: 705W output with low voltage design for higher string power, reducing BOS and LCOE by 2-6%; positive tolerance (0~+5W) ensures you get at least the rated power.
- Mechanical Robustness: Withstands front static loads of 5400Pa (snow/wind) and rear 2400Pa; IP68 junction box with 3 bypass diodes minimizes hot spots and shading losses.
- Low Degradation: Just 1% first-year power drop, then 0.4% annually; certified for high resistance to salt, ammonia, sand, and extreme weather.
- Long Warranties and Certifications: 12-year product workmanship warranty and 30-year linear power warranty (84.95% after 30 years); meets IEC, ISO, and low-carbon standards for sustainability.
Trina Solar 705W bifacial panel Technical Data Table
| Specification | Value/Details |
|---|---|
| Model | TSM-NEG21C.20 |
| Cell Type | N-type Monocrystalline i-TOPCon, Bifacial |
| Number of Cells | 132 |
| Maximum Power (Pmax/STC) | 705 Wp |
| Module Efficiency | 22.7% |
| Open Circuit Voltage (Voc/STC) | 48.7 V |
| Short Circuit Current (Isc/STC) | 18.35 A |
| Voltage at Maximum Power (Vmpp/STC) | 40.5 V |
| Current at Maximum Power (Impp/STC) | 17.42 A |
| Maximum Power (Pmax/NOCT) | 537 Wp |
| Open Circuit Voltage (Voc/NOCT) | 46.3 V |
| Short Circuit Current (Isc/NOCT) | 14.78 A |
| Voltage at Maximum Power (Vmpp/NOCT) | 37.8 V |
| Current at Maximum Power (Impp/NOCT) | 14.21 A |
| Bifaciality Factor | 80±5% |
| Power Tolerance | 0 ~ +5 W |
| Temperature Coefficient (Pmax) | -0.29 %/°C |
| Temperature Coefficient (Voc) | -0.24 %/°C |
| Temperature Coefficient (Isc) | +0.04 %/°C |
| Nominal Operating Cell Temp (NOCT) | 43 °C (±2 °C) |
| Operating Temperature | -40 °C to +85 °C |
| Maximum System Voltage | 1500 V DC |
| Maximum Series Fuse Rating | 35 A |
| Dimensions (L x W x H) | 2384 mm x 1303 mm x 33 mm |
| Weight | 38.3 kg |
| Front/Back Glass Thickness | 2.0 mm Heat Strengthened AR Coated |
| Frame Material | Anodized Aluminium Alloy |
| Junction Box | IP68 Rated |
| Cable Cross-Section | 4.0 mm² |
| Connector Type | MC4 EVO2 / TS4 PLUS / TS4* |
| Front Static Load | 5400 Pa |
| Rear Static Load | 2400 Pa |
| Hail Resistance | 25 mm at 23 m/s |
| Product Warranty | 12 Years |
| Power Warranty | 30 Years (1% first year, 0.4% annual thereafter) |
| Certifications | IEC61215/IEC61730/IEC61701/IEC62716, ISO 9001/14001/14064/45001 |
Buy Trina Solar 705W bifacial panel at the best price from SolarShop Africa.
checkout: Trinna
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