The use of traditional information systems with a low level of automation at thermal power plants does not allow organizing a channel for remote collection of reliable information about the current state of technological processes. The inability to organize data transfer to the central node for subsequent storage and processing does not allow tracking in full measure the need to repair or upgrade the equipment. In these conditions, an increase in the efficiency of the power plant is either impossible or relatively small. A significant increase in efficiency indicators can be reached by determining the least cost-effective elements or areas of the technological process, which becomes possible when using a complex collection of data from metering devices and their analysis. In the presence of a digital communication channel, data from the primary measuring device of technological processes (flow rate, pressure, temperature, voltage, etc.) can be transferred to a single information and analytical center. Based on the accumulated data, using a digital twin of the enterprise, real technical and economic indicators, as well as harmful emissions are calculated. Predictive calculations are performed for the cost effective operation of equipment and the introduction of new technologies. With a sufficient number of measurement devices, data storage makes it possible to analyze both the condition of the equipment and the state of the process at various points of time without having to affect the operating equipment. Part of informational functions of industrial control systems performed locally at TPPs can be executed remotely. These include such functions as recording events, information-computational and analytical functions, archiving information, and logging information (reporting).Analyzing the data on the technological process for a certain period (month, quarter, year, etc.), we can evaluate the efficiency of the implemented equipment and speak about the feasibility and ways of further modernization of the thermal power plant.

fuel flow, modes of operation of thermal power equipment, deviation of parameters, method for determining a load change criterion, computer complex "ORTES", night dumping of the load, load change, transient modes

The study sets the objective of overall overrun fuel separation into two components. The first one depends on changes in the electric load of the power unit. The second component is influenced by changes of the power unit controlled parameters. The separation leads to the adjustment of technical and economic performance of the power plant unit. These indicators show both the efficiency of the power unit and the overall plant.