Long Term Behaviour of Passively Heated or Cooled A-si:h Modules
نویسنده
چکیده
We compare the outdoor performance of single junction a-Si:H PV-modules which were mounted in three different ways. One was thermally well isolated against convection and radiation losses in order to reach maximum operating temperatures. A second one was fixed onto a radiator to keep its temperature as close as possible to the one of the air. A third one served as reference and was mounted with a” open back side. By the different mountings the operating temperature of the modules could be strongly influenced. Although a high operating temperature results in a reduced V,,, it turned out to be beneficial for the effective energy conversion in the long term due to a strongly reduced Staebler-Wronski degradation.
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