Justification of balance reliability of the UPS of Russia in modern conditions of electric power industry development

The issues of the influence of the information content of the balance reliability problem on the decisions taken to justify the operational power reserve of the UPS of Russia are considered. Consideration is given to changing the principle of taking into account power consumption mode from one average daily schedule of December lasting 250 working days of the year to the consideration of all 8,760 hourly load changes. The calculated indicators of balance reliability with different representa- tion of power consumption and generating capacity modes for the conditions of op- timal distribution of the power reserve are presented.