Estudo de adequação tarifária para uma indústria de bebidas: uma análise pós-inclusão de um sistema de minigeração distribuída fotovoltaica

Abstract

Given the importance of efficient electricity management in the industrial sector, this study presents a tariff adequacy analysis for a beverage company located in Garanhuns-PE. The analysis was motivated by the installation of a distributed solar photovoltaic mini-generation system at the facility, aimed at reducing electricity costs. However, despite the system's implementation, the company continues to face high electricity bills due to inadequate adjustments in the contracted demand and the lack of an analysis regarding the potential migration to a different tariff modality. To address these issues, an analytical assessment was conducted based on 12 months of energy consumption data after the installation of the photovoltaic system. Using the optimal demand technique, it was found that the originally contracted demand of 180 kW should be adjusted to 216 kW. This change would result in an annual savings of R$ 11,399.39 for the company, representing a 16% reduction in demand-related expenses. Additionally, a simulation was performed to evaluate the possibility of switching to a different tariff modality. The study compared the current green tariff structure with the blue tariff modality, identifying the more cost-effective option. However, it was concluded that the green tariff modality remains more advantageous for the company’s consumption profile, as it results in an approximately 38% savings compared to the blue tariff structure. Thus, based on the results, it was concluded that the proposed adjustments, both in the contracted demand and in maintaining the green tariff modality, significantly contribute to the company’s energy efficiency and cost reduction. This study highlights the importance of thorough analyses for optimizing the use of energy resources, especially in the industrial sector