[For the English abstract and full text of the article please see the attached PDF-File (English version follows Russian version)].ABSTRACT With an annual increase in the volume of energy regenerated by rolling stock, an assessment of the use of such energy becomes particularly topical. The article defines the regenerative energy efficiency indicators for braking and i t s components. The influencing factors and the empirical coefficients determining the degree and nature of the energy

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... ion of regeneration at the railway section, are determined. The initial data are listed, preparatory calculations and the algorithm of the method of evaluating the efficiency of regeneration are presented. A method is proposed for distributing the energy returned to traction substations according to the components of its beneficial use. Keywords: railway, regeneration, energy efficiency, traction power supply system, traction substations