Estudo teórico e dimensionamento de um sistema solar fotovoltaico de uma unidade consumidora do grupo A de energia elétrica no estado do Paraná

Abstract

The pursuit of a higher quality of life has become increasingly prominent in the modern world, which has consequently led to a continuous rise in electricity demand. In this context, photovoltaic solar energy stands out as a sustainable alternative widely adopted in several countries. This study aims to conduct a theoretical analysis and the sizing of a photovoltaic system for a consumer unit classified under Group A. The evaluation was carried out considering the future installation of the system in the city of Paranavaí, located in the northwestern region of the state of Paraná, Brazil. To develop the study, essential aspects were examined, such as the contracted demand and the tariff modality suitable for the typical energy consumption profile of Group A consumers. Subsequently, the photovoltaic generation system was sized to supply the required power for the unit, followed by an economic-financial feasibility analysis. The results indicate that no adjustment to the contracted demand is necessary and that the green time-of-use tariff modality remains the most appropriate option. It was also determined that the required generation capacity to meet the consumer’s needs is approximately 168.9 kWp. The financial return analysis showed an estimated payback period of 5.3 years, demonstrating the attractiveness of the system.