Shingled Solar Panel Technology
How It Works
TW-Solar is the latest pioneer of ‘Shingled’ monocrystalline silicon PV technology originally developed in 1956. A shingled module takes TW-Solar’s 120mm PERC solar cells, cuts them into six wafers which are then overlayed as tiles. Using a flexible conductive adhesive for the interconnects between cells to cover the entire module and improve efficiencies.
Download the white paper for further information.
Benefits
The benefit of the Shingled module technology are significant and numerous:
- High density packing – reducing the spacing between cells to increase the active area and so efficiency (active area ratio of 95.2% with conversion efficiencies of 21.25%)
- Improved thermal conduction – The overlapping contact area of the cells is 140 times than that of a half cut modules’ soldering ribbon, resulting in better hotspot resistance
- Solderless flexible interconnections – Avoiding the need to solder at high temperatures means fewer micro cracks and stress than in conventional modules
- Flexible adhesive – Less stress under load, particularly at low temperatures resulting in better durability and power degradation
- Environmental material use – Shingled modules are Designed for Recycling (DfR). Offering Lead & Fluorine Free. Simplified recycling. Reduced CO2 emissions in manufacture
- Improved Aesthetics – Free of tabling ribbons the modules have a uniform appearance offering more attractive and acceptable installations
- Segmented Cells – Reduced string current (1/3 of half cut cells) resulting is reduced mismatch and higher module reliability
- Low temperature laser cutting - Reduces the thermal damage to the cells and improves mechanical strength
- Full parallel circuit design – Compared to half cut modules with 2 strings, the Shingled module offers 6 parallel strings to significantly improve anti-shading capabilities
