Estudo de economia de energia elétrica em sistemas de pivô central no estado de Goiás

Abstract

This study analyzes the potential for electrical energy savings in central pivot irrigation systems in the state of Goiás, focusing on practices that can reduce operational costs and promote more sustainable irrigation. The research utilizes detailed operational data, organized in the Irrigation Cost Table, which includes variables such as equipment power, pumped water volume, and operating hours. The analysis compares daytime and nighttime irrigation periods, considering seasonal tariffs and the additional costs of the booster system. Results show that nighttime irrigation can reduce costs by up to 15%, taking advantage of lower tariffs, which is especially beneficial for larger-scale operations. Furthermore, the study highlights the efficiency of higher-power pivot systems, which, despite higher operational costs, compensate through greater irrigated area coverage and more uniform water application. The methodology employs a quantitative approach, simulating scenarios of high and low water demand to assess the impact of seasonal conditions on operational costs. The conclusion is that practices based on scheduling, the selection of efficient equipment, and integration with automation systems can contribute to more rational energy resource management, providing economic benefits for producers and encouraging more sustainable agriculture.