SECTION V BALANCING ENERGY MARKET

CHAPTER 17 AUTOMATIC FRR PROCESS

Article 17.1 Activation of automatic FRR

1. The Balancing Energy (aFRR) is automatically activated through the use of the Automatic Generation Control (AGC) function by the HETS Operator to regulate frequency, as defined in Regulation (EU) 2017/1485.
2. The HETS Operator shall send the local aFRR merit order list to the European aFRR Platform no later than ten (10) minutes prior to the start of the mFRR Time Unit.
3. For each AGC cycle, the HETS Operator calculates and sends to the European aFRR Platform a demand for aFRR, taking into account the current conditions in the Hellenic Electricity Transmission System (HETS). The aFRR European Platform executes the relevant optimisation algorithm and sends the aFRR Correction Signal back to the local AGC controller.
4. For each AGC cycle, the required activation of aFRR Balancing Energy serviced locally is the algebraic sum of the aFRR requirement and the most recent aFRR Correction Signal.
5. The local AGC controller selects aFRR Balancing Energy Offers from the local aFRR Merit Order List in order to cover the requisite aFRR Balancing Energy activation, based on criteria that include at least activation costs.
6. After the execution of each AGC cycle, the HETS Operator issues the respective aFRR Dispatch Instructions to the Balancing Services Entities located in the AGC to supply aFRR Balancing Energy in accordance with the local aFRR Merit Order List.
7. In specific situations that result in changes in communication and/or data exchange with the European aFRR Platform, the HETS Operator shall disconnect from the European aFRR Platform and carry out the aFRR Process locally. During local execution of the aFRR Process, the aFRR Correction Signal received from the European aFRR Platform is set to zero.
8. More details on the activation of aFRR Balancing Energy are provided in the Technical Decision ‘Automatic FRR’.