Analysis of implementation of electric energy generation system through photovoltaic panels in a school

Abstract

As the population increases and the world's natural resources expense profile rises, there has been a need to discuss energy issues and invest in renewable solutions. Many schools located in Belo Horizonte and region use energy-intensive facilities. The objective of this work is to analyze the viability of implementing an electric energy generation system by means of photovoltaic panels distributed in a certain area of a school. For this, a brief explanation of the basic concepts related to the proposed theme was performed. In addition, the available technologies were evaluated, seeking to analyze the best configuration of a solar energy generation system with the objective of reducing the expenses with electrical energy, contributing to the sustainability of the school.  For this analysis the school Children's Workshop Educational Center was selected, which allows the installation of an electric energy generation system using photovoltaic panels on the roofs of the classrooms. As a result, the installation of 7 photovoltaic panels was proposed, generating a value of 3.4 kWp of installed power. The results of the analysis show a 70% reduction in the consumption of electric energy from the utility company, when compared to the historical average consumption of electric energy of the consumer units. The cost for the investment of all the systems was calculated to be R$48.325,97. For the consumer unit the calculated payback time was 53 months.  At the end of the study it was concluded that the alternative system aiming to fully supply the energy demand is economically feasible.