The photovoltaic (PV) system performance essentially depends on the modules response to five effects: spectral, reflection, temperature, irradiance, and nominal power variations. Providing a full characterization of modules behavior in terms of the impact of these effects on real operating conditions performance is very important both to compare different PV technologies and to choose the best technology for a specific site, position, and installation feature. In this work, a systematic approach is used. A theoretical model to calculate the performance ratio related to each effect is proposed. The model is used to compare and to explain the annual behavior of two different technologies: a multicrystalline silicon module (mc‐Si) and a double junction amorphous silicon module (a‐Si/DJ). The basic features of these modules performance are observed. Copyright © 2014 John Wiley & Sons, Ltd. A theoretical model to calculate the performance ratio and losses related to spectral, reflection, temperature, irradiance effects, and nominal power variations is reported. A full characterization of modules behavior in terms of the impact of these effects on real operating conditions is provided. The model is used to compare and to explain the annual behavior of two different technologies: a multicrystalline silicon module (mc‐Si) and a double junction amorphous silicon module (a‐Si/DJ).


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    Title :

    Full characterization of photovoltaic modules in real operating conditions: theoretical model, measurement method and results



    Published in:

    Publication date :

    2015




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    53.36 Energiedirektumwandler, elektrische Energiespeicher