MULTI-YEAR VARIATIONS IN WINTER TEMPERATURES BY RUSSIAN REGIONS AND THEIR INFLUENCE ON ENERGY SUPPLY SECURITY
The article studies the properties and regularities of fuel demand variations in the heating period. The average deviation of fuel demand from the expected average level is determined using the variation rate of integral temperature difference. The paper provides a method to identify the effect of synchronous, semi synchronous and asynchronous variations in the rate, duration and average difference of temperatures during the heating period on the fuel demand variations. Numerical calculations are made and a number of regularities are specified for the structure and nature of the heating season.