Hybrid method for evaluating the operational costs of brazilian energy distributors
DOI:
https://doi.org/10.14488/1676-1901.v25i2.5221Keywords:
Electric Power Distribution, Efficient Operational Costs, Benchmarking, Data Envelopment Analysis (DEA), Stochastic Frontier Analysis (SFA)Abstract
This research aims to propose a model for benchmarking evaluation, applied to the Brazilian regulatory system in establishing the efficient operational costs of electric power distribution utilities. The formulated model seeks to provide regulatory agents with a parameter for periodic control of tariffs and quality standards of supply, based on a real assessment of the operational efficiency of distribution companies. To conduct this research, it is proposed to use a benchmarking evaluation model that integrates the associated use of Data Envelopment Analysis and Stochastic Frontier Analysis, through a methodology that establishes efficiency evaluation in Three Stages. This methodology allows for the adjustment of operational costs by leveling the operating environment of each electric power distribution utility before repeating the DEA analysis, making the performance of the utilities more coherent with the characteristics of the Brazilian market. From this, it was possible to obtain an evaluation of performance exclusively expressed in terms of management efficiency, in which the effects of the operational environment and statistical noise are controlled, resulting in a rigorous measure of efficiency, by introducing manageable and unmanageable variables in the direct calculation of efficiency.
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