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Photovoltaic Solar Energy: Photovoltech achieves 17,3% cell efficiency on multicrystalline silicon Back Contact MWT cells
Since the beginning of this year Photovoltech has increased and accelerated its R&D efforts on this subject. These efforts have produced a significant increase in efficiency resulting from process optimization, selection of new processing materials, and a major redesign of the cell structure. The average efficiency of multicrystalline silicon MWT cells fabricated in Photovoltech's pilot production line now surpasses 17%, with top cell efficiencies of 17,3% measured using an Fraunhofer ISEcalibrated cell as reference. Further improvements are expected in the coming months.
This result is an important milestone in Photovoltech's MWT development program, which targets the potential setup of a new production line specifically dedicated to the fabrication of these MWT cells. Photovoltech believes that introducing MWT cells on the PV market will play an important role in improving and differentiating its product from the existing industry standard cell design.
In parallel with the cell process development, Photovoltech is engaged in a number of collaboration projects aimed at costeffective tabbing and stringing methods for these MWT cells. The first modules based on some of these new connection methods will be presented at the European Photovoltaic Solar Energy Conference and Exhibition in Valencia, Spain in September 2010.
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