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Effect of Ambient Conditions on Monthly Performances of Three Different PV Arrays

Solar PV cells may be mainly divided into two parts as crystalline and thin film. Mono-crystalline silicon (MonoSi), microcrystalline based amorphous silicon (a-Si/µc-Si) thin film and Cadmium Telluride (CdTe) thin film solar cells are widely used PV cells in the arrays. The outdoor performances of the systems depend on some climatic parameters and conditions, and it is important to understand how the monthly efficiencies vary with these parameters (Bhattacharya et al., 2014; Dubey et al., 2013; Skoplaki and Palyvos, 2009). In the present study, the data obtained from three grid connected PV arrays of Mono-Si, a-Si/µc-Si and CdTe thin film that were operated for 3 years in Ankara-Turkey is analyzed. The results showed that Mono-Si array performance depends on the outdoor climatic conditions while a-Si/µc-Si and CdTe thin film arrays performances are not significantly affected by the variation of the climatic parameters.