Estudo de viabilidade econômica da implantação de um sistema Smart-Grid em uma residência na cidade de Dourados-MS

Abstract

The term Smart Grid can be understood as the overlap of unified communication and control systems, from the existing electricity supply infrastructure. It’s a system that optimizes the power supply, minimizing losses of various kinds, being recoverable self (self-healing), enabling the emergence of a new generation of energy-efficient applications. This study seeks to answer the following questions: the return on investment period a smart grid system in a residence in the city of Dourados, offsets due to the depreciation of the equipment installed? How long it takes for that the investment return? Thus, the study analyzed the present situation of photovoltaic solar energy in Brazil and in the world to provide information on the subject, converging to a better understanding in order to identify the strengths of the implementation of a photovoltaic system. The main motivation for doing this study is to show that there is the possibility of obtaining an alternative source of energy that is compensatory in the long term and at the same time contributes to the environment by reducing greenhouse gases. The economic feasibility study ascertained that the time needed to pay for the system with the savings in electricity bill, that is, what the time for return on investment and depreciation of this equipment in that period. At the end, we see that investment in a photovoltaic system connected to the grid pays off, providing a high return on investment over a period of about 7 years, in view of the high cost of electricity in Brazil.