A clusters analysis of energy sector: Monitoring Brazilian matrix

The present study provides an overview of energy production in Brazil and in other 53 (fifty-three) countries, considering 18 (eighteen) variables of interest collected from the World Bank's database of years 1997, 2002, 2007 and 2012. With an essentially quantitative approach and used Principal Components Analysis (PCA), 10 (ten) variables were adopted that most contributed to the variance of the data. In parallel, through the clustering technique, the countries were grouped by common characteristics, observing that Brazil, even with privileged water resources, has walked in the opposite direction of the other countries, presenting an involution in some reference indicators. The main contribution of the study is the design of an analysis model capable of defining, preliminarily, a design of the Brazilian energy matrix from the end of the 90s to the year 2012, a period that includes the publication of the secondary data used.