Assessment methods analysis of payments for reactive energy flows in the networks of the industrial enterprises

Assessment methods analysis of payments for reactive energy to be paid for in the absence of measurements results on the strength of design calculations have been studied. Approaches to payments assessment for flowing reactive energy consumed by an industrial enterprise, adopted by Ukraine, Russia and Poland have been examined and compared. Similarities and differences of the approaches under review have been revealed. The approach, acting in Ukraine, provides for the use of the reactive power economic equivalent concept as mandatory. Its value depends on the node voltage mode, the units of the load and other factors. In practice, a certain average value, which is given to a power consumer by the power supply company, is used. The paper notes that this approach is fraught with considerable error in calculating the payment for reactive power flows at the design stage of the power supply system. Probably, this fact is responsible for not using this approach either in Russia or in EU countries. There are currently no works, making it possible to compare the efficiency of methods for calculating reactive power flow costs according to the procedures adopted in Ukraine, Russia and other countries. In all these methods there are no requirements for the initial data correctness. It is not clear either what the required accuracy of the final result must be. The concept "reactive power" used in the work has been justified as well