Estudo de caso : análise das faturas de energia de uma unidade consumidora Grupo A e análise do desempenho de sua usina fotovoltaica

Abstract

The use of self-generated energy has increased exponentially in recent years, especially solar energy. In the state of Mato Grosso this was no different, each year the number of solar systems sold increases a lot, as the promise of energy savings sold in the form of an investment is simply very good. Thus, the owner of a quarry in the interior of Mato Grosso decided to invest in acquiring a photovoltaic plant in order to reduce the value of his energy bill by more than 50%. The problem arose when a few months passed after the photovoltaic plant was connected, the energy bills continued to come with a value well above the expected and promised by the sellers of the photovoltaic system. Considering the extremely high financial investment, and the savings much lower than expected, the owner of the quarry requested a study on his energy bills, and on the performance of his solar plant, in order to understand the sources causing the problems. The study developed, and presented in this work, consists of a survey of the information of energy generated by the plant compared with the expected energy to be generated, monthly. In addition, an analysis of energy bills was carried out considering the elements that were outside the standards previously observed in previous years, highlighting consumption, injected energy, and reactive energy. Through this study, it was possible to present a clear vision of the problems in the consumer unit, and presents possible solutions for the problems, which the owner will try to solve.