The present invention is to establish the energy saving targets needed to manage and save energy, to monitor the energy use and saving situation, to determine the validity and adequacy of the energy use situation, to find the saving factors and to track the loss, to prevent energy saving or loss To determine and implement actions to be taken, to analyze alternative effects between different energies, to analyze alternative effects between energy and other resources, and to estimate partial and total savings, By using the Tree Data Structure as an example of the means for modularizing and organizing the detailed and extensive energy management-related information and the tasks to be performed. Autonomous, active and intelligent management of energy, including power, and overall reduction It suggests how to build an energy saving system. The present invention provides a useful means for smoothly carrying out energy target management to companies that do not have the proper means to systematically manage and reduce energy, and are a smart factory and a smart building. By laying the foundation for the construction, it can contribute to the smooth implementation of the greenhouse gas reduction targets professed to the international community.
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