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Piliougine, Michel Sánchez-Friera, Paula Petrone, Giovanni Sánchez-Pacheco, Francisco José Spagnuolo, Giovanni Sidrach-de-Cardona-Ortin, Mariano 2024-01-23T13:02:37Z 2024-01-23T13:02:37Z 2022-05-19 Piliougine, M., Sánchez-Friera, P., Petrone, G., Sánchez-Pacheco, F. J., Spagnuolo, G., & Sidrach-de-Cardona, M. (2022). New model to study the outdoor degradation of thin–film photovoltaic modules. Renewable Energy, 193, 857–869. https://hdl.handle.net/10630/29061 10.1016/j.renene.2022.05.063 The performance of four thin-film photovoltaic modules is analyzed after an initial stabilization period and a subsequent outdoor exposition. The seasonal variations and the degradation rates of a single-junction hydrogenated amorphous silicon (a-Si:H) module, a tandem amorphous microcrystalline Silicon (a-Si/𝜇c-Si) module, a heterostructure cadmium sulfide-cadmium tel luride (CdS/CdTe) module and a copper indium gallium selenide (CIGS) are examined and correlated to spectral changes. The I-V curves have been measured every five minutes; the electrical parameters and parasitic resistances have been identified. By exploiting a number of experimental measurements acquired within a narrow interval of irradiance and cell temperature, a novel mathematical model has been developed and fitted: it considers a stationary seasonal variation component and a linear long-term degradation component. The results show annual power degradation rates of 4.0% for the a-Si:H module, 3.4% for the a-Si/𝜇c-Si and 3.5% for the CdS/CdTe, whereas for the CIGS module the annual degradation is not significant, i.e. 0.2%. eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Silicio Telururos Seleniuros Células fotovoltaicas - Degradación New model to study the outdoor degradation of thin–film photovoltaic modules. journal article