Análise de viabilidade técnica e econômica de um sistema solar fotovoltaico Grid-Tie em uma empresa de pequeno porte do setor metal-mecânico

Abstract

Renewable energy is important in the current context of electricity production, marked by the search for renewable and increasingly clean sources of energy. The most used renewable sources, especially solar photovoltaic, in recent years have shown a significant growth in participation in the Brazilian energy matrix. The realization of this monograph required understanding the concepts and technologies associated with photovoltaic energy, concepts of economic and financial viability and legal framework respecting the rules in force in Brazil for this type of electricity production. After the literature review, the paper presents the technical and economic evaluation of the solution for the implementation of a photovoltaic generation system at Tecnopampa Ltda. analyzing if there would be room for system implementation, what is the value of on-site irradiation, slope and azimuth with best gains, the investment cost, the difference in the accounts providing the system’s payback calculation of 3.19 years. To analyze the economic and financial viability of photovoltaic solar energy, discounted payback, net present value, internal rate of return and equivalent annual value were analyzed. The study used software such as Excel, for mathematical calculations, Radiasol and Sundata, to obtain climatological data, HelioScope for orientation and distribution of photovoltaic modules, and for the sizing of the system, PVsyst was used, which returned a composite system. 114 photovoltaic panels of 114 photovoltaic panels of 325 Wp=each, capable of generating 37:05 kWp, about 95 % of energy demand. The results revealed that the project of the implementation of photovoltaic solar energy, at Tecnompampa, as an alternative for cost reduction and energy diversification is viable for the analyzed period, considering the projected data.