Viabilidade técnico-econômica de sistemas fotovoltaicos na indústria leiteira: uma análise comparativa de topologias on-grid, off-grid, híbrido com bateria e zero grid

Abstract

The growing need for sustainable technologies and the rise in energy costs impose significant challenges on agribusiness, especially on the dairy industry, an intensive consumer of electricity. In this context, distributed photovoltaic generation emerges as a strategic solution to increase the resilience and economic competitiveness of these properties. This dissertation aims to perform a technical and economic feasibility analysis of the implementation of four distinct photovoltaic system topologies—on-grid, off-grid, hybrid with battery storage, and zero-grid—in two dairy industries with different consumption and grid connection profiles.The analyses in this study comprise a Group A consumer unit (high voltage), located in Céu Azul, PR, and a Group B consumer unit (low voltage), in Engenheiro Coelho, SP. The sizing of the systems was based on the historical electricity consumption of the last 12 months for each unit, as well as on the average and minimum solar irradiation data for each location, ensuring an analysis appropriate to the operational reality and generation potential of each plant. From the results obtained, it was found that the on grid and zero grid systems are viable in both consumer units (UC-A and UC-B). On the other hand, the off grid and hybrid configurations showed to be financially unviable for the same scenarios.