- Efficiency of 21.6% is 1.7pp below the N-type 650-700W median (23.3%)
- At 215.7 W/m², this panel generates 16.8 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
- 37.5 kg weight exceeds %!s(float64=4) median by %!f(string=N) kg (33.5 kg) - heavier for installation crews
- Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
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| Shop | Country | Price | Price/kWp |
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Series SS9-66HD 670-690N 5 variants
The Solarspace SS9-66HD 670-690N series is designed to maximize energy production from a given surface area – these modules make it easier to design installations where every square meter of roof or ground counts. The use of N-TOPCon cells results in more stable performance over time and better utilization of solar radiation, even in less sunny conditions. This is particularly important in Poland, where weather can be unpredictable, and investors expect predictable returns.
The bifacial dual-glass construction helps to increase production by working with both sides, while also enhancing the module's resistance to environmental factors. Another advantage is the low degradation typical of N-type technology, as well as the favorable temperature coefficient, which limits power losses in hot weather.
This series is ideal for PV farms, large commercial rooftops, and anywhere where the goal is to maximize production and ensure long-term investment profitability.
Electrical Parameters (STC)
| Nominal Power (Pmax) | 670 Wp |
| Module Efficiency | 21.57% |
| Voltage at Max Power (Vmpp) | 39.30 V |
| Current at Max Power (Impp) | 17.06 A |
| Open Circuit Voltage (Voc) | 47.10 V |
| Short Circuit Current (Isc) | 18.09 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 | 215.7 Wp/m² |
Warranty
| Product Warranty | 12 years |
| Performance Warranty | 30 years |
| End-of-Warranty Output | 87.4% |
| First Year Degradation | 1.00% |
| Annual Degradation | 0.40%/year |