Análise da viabilidade econômico-financeira na instalação da energia solar fotovoltaica em organizações militares

Abstract

This present study provides the analyze of the financial-economic viability in the install of the photovoltaic solar energy system of military organization in the Brazilian Army, in Santa Maria City, Rio Grande do Sul State. The research was classified as applied and data collection as quantitative. The finality of the study is to exhibit the solar energy as an alternative to the reduction of main expenses in the public source and the alternative energy directly associated to the environmental preservation, based in environment politics in the Brazilian Army. Has as main purpose, the economic-financial viability in the installation of solar energy photovoltaic as an alternative cust reduction and an energy diversification in the Brazilian Army Organizations. Between the specified aims in the study there's the analysis of indicators obtained by a method of the project viability and the estimation of return time in the present investment. For the viability application, was raise up the figures for electric energy costs in this organizations for the months of August, 2015 to July, 2016. Was applied the following methods: simple payback; discounted payback; internal rate of return (IRR); and net present value (NPV). It was used as basis for the application in the analysis, three out of eighteen militaries organizations located in Santa Maria City - RS: the highest, the intermediate, and the lowest energy expense. Based in the simple payback, the three projects were viable. Although with the discounted payback, the lower project proved itself unviable, because the return time was practically the same in the considered time of invertient. However, considering the preservation, the protection and the improvement of the environment quality and the Environmental Management Politics in the Brazilian Army, the project's implementation it is extremely relevant.