The balancing energy market is organized electricity trading to maintain the balance between production and consumption in the power system. The aim of balancing is that there will be minimal differences (imbalance) between energy production and consumption, which leads to costs for balancing the entire system. It is not possible for consumption to be predicted with absolute accuracy. For this reason, daily hourly forecasts for consumption are made. These are then fed to the State Electricity System Operator, which manages the electricity system of Bulgaria.