Alternativas para gestão energética em unidades consumidoras conectadas em média tensão

Abstract

Brazil is a country with a very particular energetic matrix, where more than 70% is composed of renewable sources, with predominance of hydric generation. Although this kind of generation is advantageous from the economic and ambiental point of view, the electric system stays at the mercy of the forces of nature, during the dry periods the activation of the thermoelectric plants is needed, increasing the energy tariffs applied to the consumers. Alternative systems to centralized energy supply have proven attractive from a technical and economic point of view, such as battery banks, photovoltaic generation systems and diesel power generators. Photovoltaic systems that take advantage of the abundant energy of the Sun have great synergy with storage in battery banks that are gradually becoming economically viable. In this context, several establishments have emergency generator sets powered by diesel oil to supply faults in the conventional distribution system, in addition to being used to reduce electricity costs at peak hours. Given this, this work aims to develop a tool based on a scenario analysis methodology for managing the costs of electricity in consumer units connected in Medium Voltage. Therefore, information on current tariffs, information on equipment and fuel acquisition costs, as well as data for the study of possible contractual changes are combined.