Análise da eficiência técnica relativa de empresas brasileiras distribuidoras de energia elétrica: uma abordagem DEA

Abstract

This dissertation has as main objective to analyze the relative technical efficiency of Brazilian electricity distribution companies. The quest of efficiency has been constant in many sectors and has grown due to the greater degree of competition and social pressures for better utilization of resources. Among these, the electricity sector has been prosecuted to offer increased performance that can support the cycle of economic development of the country. The technique used is the survey, ranks as descriptive, quantitative approach carried out based on 2012 data. Using the methodology of Data Envelopment Analysis (DEA) was possible to measure the relative efficiency of the selected companies, to identify the determinants of the efficiency of these units, set the benchmark units and the percentage of improvement. From the DEA application and based on the list of selected variables, there were identified seven technically efficient companies, among 18 dealers of Brazilian electricity distribution in the sample, namely: CPFL-PI, CEMAR, ELETROPAULO, COELCE, RGE, COSERN and CPFL-PA The company RGE is the best benchmark for inefficient firms, holder of different awards of quality and management of the sector. Finally, contributing to the efficiency scores of companies was the variable Installed Capacity, with the potential improvements for inefficient firms mainly consisting of variables Network Extension, Number of Employees and Average Time of Service.