Solar Panels for Auger Southern Observatory: “SPIDERSHADOWS”
DOI:
https://doi.org/10.24084/repqj09.455Abstract
During the winter of 2009, technicians inform about how during a visual inspection they detect failures in the surface of different solar panels. The inspection was not casual, but due to problems with the level of charge of the batteries. Because of the aspect on the failure we will name it “spiders” (arañitas). But other anomalies, associated to the expected ageing, have been observed, like panels with blued cells, browed surface and others. In the present note, we will describe each of the observed failures, their possible causes and their effect on the solar panel operation. The full data sample we used has been obtained either on dedicated laboratory test (PAO, USC, CIEMAT) or by direct measurement in the field.