Participation in the mFRR Process is mandatory for all Dispatchable Generating Units having that obligation, in accordance with the HETS Grid Code, for all their Available Capacity, regardless of the mFRR Balancing Capacity awarded in the ISPs.

Participation in the aFRR Process is optional for Dispatchable RES Units Portfolios and Dispatchable Load Portfolios, with the exception of capacity volumes corresponding to the aFRR Balancing Capacity awarded in the ISPs, for which participation is mandatory.

Participation in the aFRR Process is mandatory for all Dispatchable Generating Units having that obligation, in accordance with the HETS Grid Code, regardless of the aFRR Balancing Capacity awarded in the ISPs.

Participation in the aFRR Process is optional for Dispatchable RES Units Portfolios and Dispatchable Load Portfolios, except for the capacity volume corresponding to the aFRR Balancing Capacity awarded to them in the ISPs, for which participation is mandatory.

Participation in the mFRR Process shall confer the following obligations on the Balancing Service Providers:

a) the submission of Total or Partial non-Availability Declarations and Major Outage Declarations, immediately after the occurrence of events affecting their availability,

b) submission of upward mFRR Balancing Energy Offers on behalf of the Balancing Services Entities they represent,

c) submission of downward mFRR Balancing Energy Offers on behalf of the Balancing Services Entities they represent,

d) availability for operation according to their Declared Characteristics, and

e)compliance with the Dispatch Instructions issued by the HETS Operator.

Participation in the aFRR Process shall confer the following obligations on the Balancing Service Providers:

a) the submission of Total or Partial non-Availability Declarations, immediately after the occurrence of an event affecting their availability;

b) submission of upward aFRR Balancing Energy Offers on behalf of the Balancing Services Entities they represent,

c) submission of downward aFRR Balancing Energy Offers on behalf of the Balancing Services Entities they represent,

d) availability for operation according to their Declared Characteristics, and

e) compliance with the Dispatch Instructions issued by the HETS Operator.

Balancing Service Providers shall not be obliged to submit upward or downward mFRR and aFRR Balancing Energy Offers for the Balancing Service Entities they represent, and for which they have a corresponding obligation in accordance with paragraphs 1 to 4 of this Article, only in the following cases:

a) for the period during which the Balancing Service Entity is in scheduled maintenance, in accordance with the HETS Grid Code, and

b) for the period of validity of the corresponding Total non-Availability Declaration or the Major Outage Declaration of the Balancing Service Entity.