A method to control energy costs of electric energy subjects by the criterion of energy efficiency

We consider a method to control the cost of electricity consumption of an industrial enterprise. The method is based on mathematical models and algorithms to control the consumption of electric energy according to the criterion of energy efficiency. A distinctive feature of the method is as follows. In order to forecast the electricity consumption and the amount of electricity supply, the method uses a mathematical model taking into account the separation of the maximum similarity sample into positive and negative values with different approximation equations. The method allows to develop managerial solutions to reduce the cost of electricity consumption by ensuring higher forecast accuracy and withdrawal of electric energy subjects from the penalty zone of the balancing Wholesale Electricity and Capacity Market of Russia. The obtained results are useful both for theoretical understanding of the functional features of the Wholesale Electricity and Capacity Market of Russia, and for practice: to plan industrial enterprises work in the energy market, to develop programs for energy saving, and to increase energy efficiency of the production.