In recent years, rising energy costs, increasing environmental concerns, and the drive for sustainable production have placed energy management at the forefront of industrial challenges. The volatility of energy prices, combined with regulatory pressures for reduced carbon footprints, has driven companies to seek more efficient and cost-effective production strategies. In this context, integrating Energy Management Systems (EMS) within Manufacturing Execution Systems (MES) emerges as a promising solution, enabling real-time monitoring, analysis, and optimization of energy consumption across production processes. This thesis explores the integration of EMS into MES to enhance industrial energy efficiency. The research begins with a comprehensive literature review, analyzing current EMS functionalities, the latest trends in energy monitoring, optimization, and predictive analytics.