- Module efficiency of 22.4% is 0.9pp below average for N-type 650-700W panels (median: 23.3%)
- At 223.7 W/m², this panel generates 8.8 W/m² less per unit area than N-type 650-700W median (232.5 W/m²)
- At -0.29%/°C, hot weather performance is typical for N-type 650-700W panels
- Weight of 37.5 kg is 4.0 kg above N-type 650-700W median (33.5 kg) - verify structural support
- 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
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Series SS9-66HD 680-710N 4 variants
The Solarspace SS9-66HD 680-710N series is designed for installations where maximizing power output per square meter and stable performance under varying conditions are paramount. These modules utilize N-type monocrystalline cells in TOPCon technology, which allows for better long-term performance and minimizes typical degradation-related losses. The use of a dual-glass bifacial construction helps to utilize reflected light from the ground, which effectively supports energy production on flat roofs, in PV farms, and on ground-mounted structures with reflective surfaces.
In practice, this series addresses two common issues: fluctuations in power output under less-than-ideal sunlight and summer efficiency losses. This supports the favorable temperature coefficient characteristic of N-type modules. Furthermore, the robust construction and high mechanical strength make it easier to design installations in windy and snowy areas. The SS9-66HD is a choice for investors who want to extract more energy from the same area, without compromising durability.
Electrical Parameters (STC)
| Nominal Power (Pmax) | 695 Wp |
| Module Efficiency | 22.37% |
| Voltage at Max Power (Vmpp) | 40.30 V |
| Current at Max Power (Impp) | 17.25 A |
| Open Circuit Voltage (Voc) | 48.30 V |
| Short Circuit Current (Isc) | 18.28 A |
| Max System Voltage | 1500 V |
Temperature Coefficients
| Temp. Coeff. Pmax | -0.290%/°C |
| Temp. Coeff. Voc | -0.260%/°C |
| Temp. Coeff. Isc | 0.045%/°C |
| NOCT | 45°C |
Cell Technology
| Cell Type | Monocrystalline |
| Cell Count | 132 |
| Bifacial | Yes |
| Bifaciality Factor | 80% |
Dimensions & Weight
| Length | 2384 mm |
| Width | 1303 mm |
| Height | 33 mm |
| Weight | 37.5 kg |
| Area | 3.11 m² |
| Power Density | 223.7 Wp/m² |
Warranty
| Product Warranty | 15 years |
| Performance Warranty | 30 years |
| End-of-Warranty Output | 87.4% |
| First Year Degradation | 1.00% |
| Annual Degradation | 0.40%/year |