New water circulation tech promises lower PERC solar cell manufacturing costs

A German team developed models to illustrate water-saving potential in PERC silicon solar cell manufacturing based on a circular approach and commercially available technology. In the case of a 5 GW fab, water savings of up to 79% and wastewater discharge reductions up to 84% could be achieved, a "significant" improvement compared to a reference scenario. Researchers from Germany's Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) developed models to assess and compare two circular water strategies in a 5 GW passivated emitter and rear (PERC) solar cell factory. They claim it is ...

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