Usina solar fotovoltaica em consumidor optante de faturamento em média e baixa tensão: estudo de caso de uma empresa de pneumáticos usados

Abstract

With the increasing consumption, the need for investments in sustainable energy sources is discussed; in addition, energy tariffs and charges can subsidize the efficiency of systems and direct the use of sustainable sources, either through benefits or by choosing a system with lower installation and operating costs. The opting consumer, defined by the regulation in the electricity sector, choosing the billing of energy in Group A or Group B can obtain benefits due to the difference in the composition of the elements that make up the energy bill. Thus, this article simulated the financial, net and percentage benefit, as well as the attractiveness of the investment in a 60 kW photovoltaic solar plant for an opting consumer of the city of Dourados. It was observed the benefit of 4.86% by the option of billing in Group B and, with the implementation of the plant, 93.0%. Verifying the impact for generating units approved from April 2023, it was reached, with 90% of the share of wire B in 2028, a reduction of the benefit to 75.4%. Finally, it is feasible to install the photovoltaic solar generation plant even billing in Group A, moreover, it improves its attractiveness with an option for Group B. It was also observed a gradual reduction in the financial benefit in the installation of the plant until 2028, when the investment will have a return of 5 years and 6 months and internal rate of return of 38.45%.