Estudo para redução de custos e previsão de faturas de energia elétrica para consumidores do grupo A do Governo do Estado do Ceará

Abstract

Electricity is an essential element in modern human life and is a limiting agent for a nation's financial growth. Therefore, aiming at the optimization of the electric system, as well as the reduction of fixed expenses, it is necessary to apply an energy efficiency process in the consuming units. In view of these points, this paper presents a proposal to reduce costs in the Group A consumer units of the Ceará State Government without the use of material resources. To this end, it is specifically about contracted demand adjustments and tariff modality. For the adjustments, the statistical methods were used as support: Pearson correlation, least squares linear regression and modified Thompson-Tau method. With the adoption of the proposed adjustments, an average annual savings potential of over 5 million reais was found. In addition, this document presents invoice forecasts using the Holt-Winters method to estimate the reduction in proposed adjustment expenses if adopted since March 2019. It was noted in the forecast that there would be a 7% reduction in 2019 and 11% in 2020.