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Erschienen in: Clean Technologies and Environmental Policy 1/2015

01.01.2015 | Original Paper

Experimental verification of upgraded metallurgical silicon photovoltaic power plant

verfasst von: Hong Yang, He Wang, Haidong Wang, Jiye Ding

Erschienen in: Clean Technologies and Environmental Policy | Ausgabe 1/2015

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Abstract

The upgraded metallurgical silicon (UMG-Si) purified by a metallurgical process route directly is more energy efficient than the conventional Siemens process, but high metallic impurities are the cause of a large fraction of the total recombination events in solar cells made from UMG-Si. The efficiency of crystalline silicon solar cells made by such materials is lower than that from a chemical route, and UMG solar cells have big light-induced degradation. So, there always exist debates about using the upgraded metallurgical silicon for photovoltaic. In this paper, the impurity contents of silicon samples obtained in different stages were investigated, and a four-year verification of the largest UMG photovoltaic power plant in the world was conducted for the first time. The reliability, operating performance, and defects of UMG photovoltaic power plant were analyzed.

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Metadaten
Titel
Experimental verification of upgraded metallurgical silicon photovoltaic power plant
verfasst von
Hong Yang
He Wang
Haidong Wang
Jiye Ding
Publikationsdatum
01.01.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Clean Technologies and Environmental Policy / Ausgabe 1/2015
Print ISSN: 1618-954X
Elektronische ISSN: 1618-9558
DOI
https://doi.org/10.1007/s10098-014-0786-8

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