Eficiência energética para instituição pública com foco no IFG Câmpus Jataí

Abstract

Energy efficiency in the public sector is fundamental for economic and environmental sustainability. This work presents an energy diagnosis conducted at the Federal Institute of Goiás (IFG) – Jataí Campus, aiming to identify causes of inefficiency and propose technical solutions for cost reduction and consumption optimization. The methodology was characterized as a quantitative case study, structured in four stages: tariff analysis, measurement of electrical quantities and power quality using a power quality analyzer (Fluke 1738), evaluation of the existing photovoltaic generation system, and an inventory of air conditioning loads. The diagnosis results revealed an underestimation of the contracted demand, generating recurring penalties, as well as a marked current imbalance between phases and a solar generation deficit of approximately 67% to achieve self- sufficiency. It was also identified that the air conditioning system, composed mostly of conventional equipment, is the main driver of peak consumption. In conclusion, the study recommends adjusting the contracted demand to 107 kW while maintaining the Green tariff, replacing the air conditioning system with inverter technology, and the strategic expansion of the photovoltaic system considering the tariff adjustment factor for Group A consumers.