Power quality management as a goal of ONS Operador Nacional do Sistema Eletrico-the Brazilian transmission ISO

The Brazilian energy sector´s recently adopted diverticalized model imposes new rules that must be established in such a way as to satisfy the consumer market. In this context, the quality of the electric energy itself has become one of the most important issues to be attended. This article begins by presenting a simplified overview of the new scenario and includes the diverse agents and their main working relationships. Considering the ample institutional experience in Brazil in this area, ONS has been working diligently to bring into the new model all the previous concern with respect to the power quality. To this end, ONS has created an adaptation process that is as transparent as possible. With the support of ANEEL, ONS has been stimulating a broad spectrum debate including all possible questions of interest to the many participating agents that require access to the Basic Grid and government organs, universities and research centers. This article presents the main aspects of the rules and procedures being established in the system and offers some reflections and questions regarding the guarantee of quality of the energy provided in the Brazilian energy sector´s new environment