Participation of balancing entities in the balancing mechanism is regulated by Ancillary services contract and the contract on participation in the balancing mechanism that are required to conclude the Transmission system operator and a market participant who have balancing entities in the market area of Serbia, by which the market participant acquires the status of participant in the balancing mechanism.

For the purpose of participating in the balancing mechanism, market participants who have balancing entities in the market area of Serbia shall put at Transmission system operator’s disposal all available capacities of its balancing entities, which remain after accepted daily schedules.

Participation of Suppliers or Wholesale suppliers in the balancing mechanism is regulated by Ancillary services contract that are required to be concluded by the Transmission system operator and Supplier or Wholesale supplier who will therewith obtain the status of a BM participant for the period of contract validity.

Participation of Transmission system operators from other market areas in the balancing mechanism is regulated with the contracts between Transmission system operators governing the purchasing and selling of cross-border tertiary regulation energy and imbalance netting.