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Trend towards larger solar cell formats

A new trend could be seen at the solar trade fairs this year: larger cell formats.

At present, solar cells are generally processed in a size of 156.75 mm x 156.75 mm, or 156.75 x 78.375 mm for half cells, everywhere in the world. The trend towards monocrystalline solar cells can be clearly seen. This enables solar modules with higher outputs to be produced. Monocrystalline solar cells now include a full square cell measuring 156.75 x 156.75 mm. This is highly untypical, since monocrystalline solar cells normally have rounded corners. But thereby higher module outputs can be achieved without any need for changes to the production systems.

The new, larger solar cell formats are 158.75 x 158.75 mm (M3), 161.75 x 161.75 mm (M4) and 166 x 166 mm (M6) plus the half cell sizes in each case.

It is important for our customers that our Stringer Systems can be adapted to work with these new cell formats. These modifications can be carried out on site. The biggest modifications are required in the case of the 166 x 166 mm format. Nevertheless, modification can be made to run this cell format as well. The ideal configuration here is to use 6 ribbons to optimize the performance of the module. Leading solar research institutes see this the same way and have confirmed for us that a 6-busbar design is ideal for this cell format.

Our Stringer Systems are excellently suited to this purpose owing to their flexibility and the precise positioning of the ribbons. Our patented hold-down-system, is the key to the success of our Stringer Systems worldwide.





teamtechnik's patented hold-down-system