The basic condition of energy sector development is fundamental complex of flexible and accessible multi-level process control system. Energy-efficient process management system is involved in four hierarchical levels subordinate to each other to ensures the flow of information and contribute to the common and individual objectives. This study is established with the objective to find and determinate energy-efficient process management subjects and to define the performance factors, which influence their interaction scheme. Based on studies and analysis of scientific and practical information, authors of this research established and defined interactions of energy-efficient process management system subject groups and their needs, discovered energy-efficient process management system participants and their interaction, offer graphical representation of scheme of institutions involved in energy-efficient process management system in Latvia. To describe and evaluate the energy sector process control system in Latvia statistical, logical, data processing and analysis methods have been used in this research. This research can be applied international to improve energy sector development based on development of management system of energy efficient processes.