Análise técnico-econômica e de eficiência dos principais tipos de baterias utilizadas em sistemas fotovoltaicos isolados

Abstract

The objective of this study was to analyze the economic and financial viability and efficiency of the main types of batteries used in isolated photovoltaic systems, applied to a rural residential unity, in the county of Tabatinga, in the state of Amazonas. For this, a bibliographic research was carried out. For the analysis of the viability of project implementation, the PVsyst software version 6.72 was used. As the results of the software are not so complete it was necessary to perform an economic-financial study of the use of batteries in isolated photovoltaic systems, we analyzed the discounted Payback, net present value, internal rate of return and return on investment. The results revealed that the isolated photovoltaic system design is feasible for both case studies presented. However, it was evidenced that due to the short life of lead-acid batteries, the use of Lithium Iron Phosphate batteries in this type of project is more profitable and efficient, since they have a longer life, lower toxicity and lower cost per life cycle.