Solving a task on energy efficiency implies accounting of energy resources, analysis of energy-consuming modes, as well as decision-making and management. Practical implementation is, as a rule, based on constant monitoring and parameterization of the system, which leads to the accumulation of a large amount of historical data on energy consumption, obtained from the nodes of commercial accounting and electronic weather-dependent regulators. Solving the problems on energy efficiency and energy saving requires a comprehensive approach, which predetermines the need to improve already existing approaches,