Análise dos impactos da geração distribuída com energia solar fotovoltaica na operação de uma panificadora de pequeno porte: estudo de caso e perspectivas

Abstract

The search for solutions to reduce electricity consumption has gained more and more relevance among small commercial establishments. Among the available alternatives, distributed generation with photovoltaic solar energy emerges as an increasingly sought-after option, capable of reducing operating costs and adding to achieve future goals and plans. In this context, this work proposes an analysis of the impacts of the implementation of a photovoltaic system on the operating costs of a small bakery connected to the network of the concessionaire the state of Minas Gerais (CEMIG), focusing on the analysis of the cost avoided by meters and load blocks. For this, a case study was used as a methodology. The plant's generation data were simulated by the PVsyst program, and by means of the single-line electrical diagram, the DG generation and consumption studies of each meter and load groups were carried out, whose results were applied to dispatch the percentage of energy coming from the remotely installed solar plant. The price in [kW.h] of distributed generation in reais, for a net present value of 25 years, calculated according to the LCOE, was around R$ 0.182. The energy expenditure and avoided financial costs of the concessionaire around 88,0 % and 71,63 % respectively for the first half of the year, 90,79% and 74,34 % for the second, 90,28 % and 75,34 % for the third. The integration of solar photovoltaic distributed generation technology with the baking industry provides a significant competitive advantage, enabling not only the reduction of energy costs but also positioning the business as more sustainable and innovative, standing out from the competition.