Trina Solar 720W Vertex N-Type i-TOPCon Bifacial Dual Glass Silver Frame Solar Panels
- 720 W N-type i-TOPCon bifacial solar panel for large commercial, industrial and ground-mounted PV projects.
- 23.2% module efficiency with dual 2 mm heat-strengthened glass and a silver anodised aluminium alloy frame.
- Designed for 1,500 V DC systems, with a 12-year product warranty and 30-year power guarantee.
Trina Solar 720W Vertex N-type bifacial solar panel
The Trina Solar TSM-NEG21C.20 720W is a high-power N-type i-TOPCon monocrystalline bifacial solar panel with dual-glass construction. It is intended for professionally designed commercial, industrial and utility-scale solar PV arrays where high module power can reduce the number of panels, mounting components and electrical connections required.
Its bifacial design can generate energy from the rear of the module where reflected light is available. Actual rear-side gain depends on the site, mounting height, surface reflectivity, row spacing, shading and array design, and should be modelled as part of the project design process.
Key features
- 720 W rated output: A high-power module for reducing module count in large rooftop and ground-mounted solar PV systems.
- 23.2% module efficiency: Delivers high power density using N-type i-TOPCon monocrystalline cell technology.
- Bifacial dual-glass construction: 2 mm heat-strengthened front and rear glass supports bifacial energy generation in suitable installations.
- 1,500 V DC system rating: Suitable for professionally engineered high-voltage PV strings, subject to inverter and string-design limits.
- Long-term performance cover: 12-year product warranty and 30-year power guarantee, with 1% first-year degradation and 0.4% stated annual power attenuation thereafter.
Where to use
The Trina Solar 720W Vertex bifacial solar panel is suited to solar farms, commercial and industrial ground-mounted arrays, warehouses, logistics facilities, factories, agricultural buildings, large roof-mounted installations and solar carports.
At 2,384 × 1,303 mm and 38.3 kg per module, this is a large-format panel. Use a mounting system approved for its size, frame profile, clamping zones and expected wind and snow loads. A structural assessment and professional installation are recommended.
Energian can assist with module quantities, string configuration, inverter matching, DC protection, mounting selection and complete PV system planning. For complete projects, we can support installation through trusted partners.
Technical specifications
| Manufacturer | Trina Solar |
| Series | Vertex |
| Module model | TSM-NEG21C.20 |
| Power range | 695–720 W |
| Module type | N-type i-TOPCon bifacial dual-glass monocrystalline module |
| Rated maximum power (Pmax) | 720 W |
| Power selection | 0 to +5 W |
| Module efficiency | 23.2% |
| Maximum power voltage (Vmp) | 41.3 V |
| Maximum power current (Imp) | 17.44 A |
| Open-circuit voltage (Voc) | 49.4 V |
| Short-circuit current (Isc) | 18.49 A |
| STC test conditions | Irradiance 1,000 W/m², cell temperature 25°C, air mass AM 1.5 |
| Measurement tolerance | ±3% |
| Power bifaciality | 80 ± 5% |
| Solar cell type | N-type i-TOPCon monocrystalline |
| Number of cells | 132 cells |
| Module dimensions | 2,384 × 1,303 × 33 mm |
| Weight | 38.3 kg |
| Front glass | 2.0 mm anti-reflective coated heat-strengthened glass |
| Back glass | 2.0 mm heat-strengthened glass with white coating |
| Frame | 33 mm anodised aluminium alloy, silver finish |
| Junction box | IP68 rated |
| Output cable | 4.0 mm² photovoltaic cable; portrait: 350 mm positive / 280 mm negative; cable length can be customised |
| Connector | MC4 EVO2 / TS4 Plus / TS4; refer to regional datasheet for specified connector |
| Operating temperature | -40°C to +85°C |
| Maximum system voltage | 1,500 V DC (IEC) / 1,500 V DC (UL) |
| Maximum series fuse rating | 35 A |
| First-year degradation | 1% |
| Annual power attenuation | 0.4% |
| Guaranteed power at year 30 | 87.4% |
| Product warranty | 12 years |
| Power guarantee | 30 years |
| Product certifications | IEC 61215, IEC 61730, IEC 61701 and IEC 62716 |
| Additional declarations | ISO 14067 Product Carbon Footprint Limited Assurance; ISO 14025 Environmental Product Declaration; EU-28 WEEE-compliant recyclable packaging |
Documents available for download
Shipping
Available for delivery throughout the UK, Ireland, Africa, the Caribbean and worldwide. If a shipping rate is not shown at checkout, please contact us on +44 2080640335 or info@energian.co.uk for a quote.
UK expert support
UK expert support is available for module selection, structural mounting checks, inverter string design, bifacial array layout and complete commercial solar PV system planning. Contact Energian by phone, email or live chat, or visit our office for an in-person consultation.