The strengths of SL1 modules:
- Self-cleaning and cost-efficient without frame
- Glass-glass composite and proven edge sealing for long-term stability
- 7.4mm laminate with 4 mm TSG front glass for maximum mechanical stability
- Grounding Earthing of modules is not necessary without a frame
SL1 modules are ideal for:
- Low-sloping Industry and hall roofs
- Roof-parallel installation on flat roofs
- Barns and riding stables
The unframed glass-glass Q-Cells SL1 module achieves a solar efficiency of up to 12%, making it currently unbeaten by any other thin-film module on the market. It’s available in performance categories up to 85Wp positively sorted in +5W steps. This means that the measured output of the 85Wp category is actually between 85Wp and 90Wp.
Modules are permanently protected from the elements by a stable glass-glass composite with proven edge sealing. With a front pane of 4mm tempered safety glass (TSG), the laminate thickness is just 7.4mm. This stable design minimises module breakage rates during transport and installation.
The unframed SL1 modules demonstrate their superiority primarily on roofs with a low incline: their high efficiency enables high overall output since their good performance in low and oblique light and their efficient self-cleaning result in superb yields. The SL1 modules are thus ideally suited for solar installations on flat industry and hall roofs.
| Length x width (area) | 1,190mm x 630mm (0.75m²) |
| Height | 7.4mm (22mm including connection socket) |
| Weight | 13.2kg |
| Front cover | 4mm pre-clamped white glass (TSG) |
| Rear cover | 3mm float glass |
| Cell type | CIGS [Cu(In, Ga) Se²] |
| Connection socket | Protection rating IP 65 |
| Cable length | 730mm (+cable) / 635mm (-cable) |
| Connector | Multicontact MC4 |
| Nominal output | 70Wp, 75Wp, 80Wp, 85Wp, 90Wp |
| Efficiency ratio | 9.3%, 10.0%, 10.7%, 11.3%, 12,0% |
| System voltage | 1,000 V |
| Transformerless inverter | Permitted |
| Snow/wind load | Up to 2,400Pa |
| Certificates | IEC 61646; IEC 61730, application category A; UL 1703 (pending); CE label |
| Modules per packaging | 44 |
| Q-Cells SL1 data sheet | PDF download , 458 KB |
| TÜV IEC 61646 | PDF download , 101 KB |
| TÜV IEC 61730 | PDF download , 143 KB |
| VDE IEC 61646 and 61730 | PDF download , 859 KB |