The HETS Operator shall issue Dispatch Instructions to the Dispatchable Generating Units whereby it shall determine the Active Power generation, their synchronization or de-synchronization with the HETS, the provision of Reserves and other Ancillary Services and, in general, their mode of operation. The HETS Operator shall issue Dispatch Instructions to the other Balancing Service Entities whereby it shall determine the injection or offtake of Active Power, the provision of Reserves and other Ancillary Services and, in general, their mode of operation.

In particular, the Dispatch Instructions issued by the HETS Operator in the framework of the Balancing Market, shall be as follows:

a) Commitment Dispatch Instructions (i.e. synchronization Dispatch Instructions for the Dispatchable Generating Units) or decommitment (i.e. de-synchronization Dispatch Instructions for the Dispatchable Generating Units) or transition (i.e. transition Dispatch Instructions between operating configurations for Multishaft Combined Cycle Dispatchable Generating Units) in the framework of the ISP.

b) mFRR Dispatch Instructions

c) aFRR Dispatch Instructions;

d) mFRR Test Dispatch Instructions.

In addition to the above Dispatch Instructions, the HETS Operator shall issue other instructions for the activation of Balancing Energy Offers for mFRR for purposes other than balancing, in order to ensure reliable operation of the HETS, in particular with regard to frequency, voltage, and current of the HETS at important nodes or component parts. The Balancing Energy Offers for mFRR that are activated for purposes other than balancing shall be marked with the appropriate indications.

The Dispatch Instructions shall be issued by the HETS Operator to the Balancing Service Entities through the Dispatch information Administration System, or by alternative means of communication, such as telephone and e-mail.

In case of interruption or failure of the Dispatch information Administration System, which makes the issuing of Dispatch Instructions impossible, alternative ways of communication, such as telephone, e-mail and fax, shall be used.

Without prejudice to the specifications of the following paragraphs, Dispatch Instructions shall be mandatory for the Balancing Service Providers. The Balancing Service Providers shall ensure that the operational mode of their Balancing Service Entities complies with the Dispatch Instructions and that they change their operation only upon a new Dispatch Instruction. In case of non-compliance, the Balancing Service Providers shall be subject to non-Compliance Charges, in accordance with Article 22.3 and Article 22.4 of this Rulebook.

When Compliance with a Dispatch Instruction is impossible due to constraints on the operation of a Balancing Service Entity, which constraints are included in the Balancing Service Entity’s Declared Characteristics, then the respective Balancing Service Provider shall immediately notify the HETS Operator both by telephone and e-mail or fax. In that case, the HETS Operator may withdraw the original Dispatch Instruction and issue a new one.

When Compliance with a Dispatch Instruction is impossible for reasons solely attributable to the security of the personnel or the facilities of a Balancing Service Entity, then the respective Balancing Service Provider shall immediately notify the HETS Operator. In that case, the HETS Operator may issue a new Dispatch Instruction taking into account the updated Characteristics of the respective Balancing Service Entity.

Balancing Service Providers shall be considered to have complied with the Dispatch Instructions for the synchronization or de-commitment of their Balancing Service Entities, if they execute them with a variance of no more than ten (10) minutes from the time specified in the instructions, as described in the Technical Decision ‘Dispatch Instructions’.

Balancing Service Entities selected to provide aFRR Balancing Energy shall comply with the activation profile of aFRR Standard Products. The permitted activation profile shall take into account the characteristics of the aFRR Standard Products and a tolerance range as specified in the Technical Decision ‘Dispatch Instructions’.

The HETS Operator may perform checks on Balancing Service Entities to establish compliance with the permitted activation profile. If any discrepancy is found, the HETS Operator shall impose Non-Compliance Charges in accordance with Article 22.2.