Análise de desempenho de sistemas fotovoltaicos, considerando a influência da sujeira na Região Sul de Goiás: estudo de caso no Instituto Federal de Goiás - Campus Itumbiara

Abstract

The solar energy is growing even more as an alternative of energy source and has a wide range of advantages for its implementation, use and maintenance, being a clean source and trustworthy. But, in compensation to the many advantages that a photovoltaic system has, as in any real system, there are losses. The objective of the research of this work is the analysis of the photovoltaic systems connected to the grid in the region south of Goiás, considering the losses of energy due to the dirt effects. The present work presents the comparisons of losses by dirt particles and their impacts on the two photovoltaic installations of 21,6 kW each installed in the Federal Institute of Goiás - Itumbiara Campus, comparing both systems, in relation to the periodic cleaning carried out in just one of the systems, finally, observe the necessity or not of the periodic cleanings of the system. In the same way, a survey of real losses that impact the generation of the photovoltaic system in relation to the indices of merit. The study showed that with periodic cleaning, there is gains of generation of 6%, considering an system of 20kWp, the economy that results from the realized cleanings, is approximated to R$900,00 in a period of 1 year.