Descripción
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This paper presents the impact of non-homogeneous deposits of dust on the performance of a PV array. The observations have been made in a 2-MW PV park in the southeast region of Spain. The results are that inhomogeneous dust leads to more significant consequences than the mere short-circuit current reduction resulting from transmittance losses. In particular, when the affected PV modules are part of a string together with other cleaned (or less dusty) ones, operation voltage losses arise. These voltage losses can be several times larger than the short-circuit ones, leading to power losses that can be much larger than what measurements suggest when the PV modules are considered separately. Significant hot-spot phenomena can also arise leading to cells exhibiting temperature differences of more than 20 degrees and thus representing a threat to the PV modules' lifetime. Copyright © 2013 John Wiley & Sons, Ltd. | |
Internacional
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JCR del ISI
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Si |
Título de la revista
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Progress in Photovoltaics |
ISSN
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1062-7995 |
Factor de impacto JCR
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9,696 |
Información de impacto
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Volumen
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22 |
DOI
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10.1002/pip.2348 |
Número de revista
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6 |
Desde la página
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666 |
Hasta la página
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670 |
Mes
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Ranking
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