doi 10.18503/2311-8318-2016-1(30)-29-33

**Abstract**

The article is concerned with methods of definition of losses, such as the method of definition of the share contribution to losses of electric power and the method of definition of cost of losses, which were developed by the Industrial Electric Power Supply Department of Nosov Magnitogorsk State Technical University. These methods make it possible to define the share contribution to losses of electric power of each particular consumer and cost of these losses. Application of these calculations of losses of electric power using the given methods allows the companies to settle accounts with external consumers on the basis of scientifically founded values. Besides, the developed algorithms allow the consumer to plan expenses for the purchased electric power on the basis of the information on the predicted load. The methods mentioned above were used to carry out calculations with the external customers of the OJSC “Magnitogorsk Iron and Steel Works”. The share of load losses of external consumers was 22.13% of the total value of load losses.

**Keywords**

Electric power losses, cost of losses of the electric power, share contribution of the consumer to electric power losses, modified method of sequential reduction, consumers of electric energy, load losses of active power.

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