Outdoor efficiency analyses and comparison of on-grid CdTe and mu c-Si/a-Si thin-film PV systems for three years in Ankara - Turkey


3rd Turkish Solar Electricity Conference and Exhibition (SolarTR), Ankara, Turkey, 27 - 29 April 2015, vol.12, pp.1283-1287 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 12
  • Doi Number: 10.1002/pssc.201510077
  • City: Ankara
  • Country: Turkey
  • Page Numbers: pp.1283-1287
  • Keywords: amorphous silicon, CdTe, PV efficiency, PV degradation, PV outdoor test, PHOTOVOLTAIC MODULES, SOLAR-RADIATION, PERFORMANCE, DEGRADATION, DIFFUSE
  • Middle East Technical University Affiliated: Yes


The present paper is mainly a comparison of the performances of two PV systems under outdoor conditions in Ankara. The systems are grid connected and consist of two PV arrays. The types of these PV arrays are CdTe thin film and amorphous silicon/micro-crystalline-based (mu c-Si/a-Si) arrays. They are operated for 3 years; 2012-2014. Yearly averages of monthly efficiencies of these two systems working under the same ambient conditions are 6.88%, 6.65%, 6.80% and 6.64%, 5.86%, 5.25% for mu c-Si/a-Si and CdTe, respectively. Using these values, simple calculation results for the degradation rates per year are about 0.39%/year and 6.98%/year, respectively for these two types of systems. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim