The balancing service covers the difference between the planned and actual consumption of electricity by the market participant (end user). The balancing service is provided by the transmission system operator (Augstsprieguma tīkls AS) or the electricity trader that provides the balancing service to other electricity market participants and that has concluded a balancing contract with the transmission system operator (Augstsprieguma tīkls AS). The volume of balancing electricity in each trading interval is determined as the difference between the actually consumed volume of electricity and the volume recorded in the supply schedule.