The paper deals with analysis of electrical energy consumption by technological lines of particular dairy products in Ciechanow Diary Cooperative in 2011. Ciechanow Dairy Cooperative is an average establishment on account of size. The establishment produces milk, sour cream, cheese and curd, butter, homogenised cheese and yoghurt. Based on data provided by the cooperative, actual indexes of electrical energy consumpton were calculated and compared with the values obtained in dairy cooperatives of the selected EU states. In 2011, the average value of the index of electrical energy consumption in Ciechanow Dairy Cooperative was 46.5 kWh·10 hl-1 of the processed milk. This value is considerably lower than the average one reported in dairy cooperatives in Poland. The highest amount of electrical energy consumed for milk and milk drinks production is in Sweden, the lowest in Poland and Denmark.