The HETS Operator shall determine the zonal and systemic needs in Balancing Capacity for the (a) FCR, (b) aFRR and (c) mFRR, in order to ensure an adequate system response/regulation/reserve within the acceptable limits as established in the HETS Grid Code, taking into account the particular characteristics of the HETS, as defined in the ‘Methodology for Determination of Zonal/Systemic Balancing Capacity Needs’, which is approved by the RAEWW following a proposal by the HETS Operator in accordance with the provisions of paragraph 4 of Article 18 of Law 4425/2016.