THE IMPACT OF DEGRADATION ON THE OPERATIONAL CHARACTERISTICS OF PHOTOVOLTAIC MODULES UNDER SHARPLY CONTINENTAL CLIMATIC CONDITIONS
DOI:
https://doi.org/10.5281/zenodo.17994012Keywords:
photovoltaic module, degradation, harsh continental climate, SL100TU-18P, I–U characteristics, maximum power (Pmax), short-circuit current (Isc), open-circuit voltage (Uoc), efficiency, temperature effect, solar radiation flux density, experimental measurements.Abstract
In this paper, the degradation process of a crystalline silicon photovoltaic module SL100TU-18P (100 W),
operated for 14 years under harsh continental climate conditions, is experimentally evaluated. The passport parameters
of the module (Uoc, Isc, Umpp, Impp, and Pmax) are compared with the values measured under real operating conditions.
The results show that high-intensity solar irradiance, sharp temperature fluctuations, high humidity, and increased dust
concentration have a significant impact on the electrical characteristics of the module. In particular, a pronounced
degradation is observed in the maximum power and current parameters. The experimental studies were conducted at
the Heliopolygon of Tashkent State Technical University, and it was determined that the annual degradation rate of the
module is significantly higher than the passport values specified under ideal conditions
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