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The present work discusses the question of efficient pricing on electric power distribution systems. The subject is approached from the discussion of the classical economic theory applied to energy production and transport models, passing through a critical evaluation of the current rate structure used in Brazil, to the description of a consistent and simplified proposal for the electric power distribution rate design. The theory of natural monopolies is the background of an integrated discussion on classical rate design models concerning the electric energy transportation activity. By the classical problem analysis, some theories commonly approached are linear pricing, non linear pricing and peak load pricing. The current Brazilian methodology used for the rate design of the usage of distribution networks, applied by the National Regulatory Agency (ANEEL), is revisited under a critical technical vision. As a result, some concepts are reassessed due to the observed excessive operational complexity allied to the lack of economical and statistical foundation. Finally, a simplified methodology for the rate structure of the usage of electrical distribution networks is proposed. The methodology aims, at the same time, greater economic efficiency, simpler operational application and a solid theoretical foundation, thereby reducing arbitrariness and subjectivity found in the current methodology.

A estrutura tarifária de uso das redes de distribuição de energia elétrica no Brasil: análise crítica do modelo vigente e nova proposta metodológica.