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Multi-busbar technology: Increased module power and higher reliability at lower cost

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By Michael Volk, Product Manager for the Multibusbar Connector, SCHMID Group; Sebastian Schindler, Researcher in the Module Technology Group, Fraunhofer CSP

Recent advances at the cell level and in tabber-stringer equipment have led to the development of the next generation of cell interconnection architecture, resulting in an increase in cell and module performance. The multi-busbar (MBB) concept discussed in this paper delivers the benefits of a saving in material costs, a reduction in total series resistance and an improved light utilization for higher performance at lower cost. The combination of the cell and module concept and the stringer equipment works for a wide variety of cell types and enables an appreciable decrease in cost per watt and module size per watt.

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