The HETS Operator shall execute the ISP based on the following data, for each Dispatch Period concerned:

a) The price - quantity pairs of the stepwise ISP Balancing Energy Offers.

b) The price-quantity pairs of the Balancing Capacity Offers for upward and downward FCR, upward and downward aFRR and upward and downward mFRR.

c) The Registered Characteristics of the Balancing Service Entities.

d) The Techno-Economic Declarations submitted by the Balancing Service Providers for the Balancing Service Entities they represent.

e) The Total and Partial non-Availability Declarations and the Major Outage Declarations submitted by the Balancing Service Providers for the Balancing Service Entities they represent.

f) The operational status of the Balancing Service Entities at the start of the scheduling period, namely the number of half-hours already in operation or out of operation and the scheduled injection or consumption at the start of the ISP scheduling period.

g) The Market Schedules of all the Balancing Service Entities.

h) Any updated schedules for the scheduled operation of the generating units in Commissioning Operation.

i) Any updated schedules for the scheduled operation of the Dispatchable Generating Units in Testing Operation.

j) The mandatory schedules for hydroelectric power generation, as submitted by the respective Producers to the HETS Operator through the daily mandatory hydro injection declarations.

k) The zonal Load Imbalances.

l) The zonal RES Units Imbalances.

m) The available flows in the Inter-Zonal Corridors.

n) The import/export schedule Imbalances at the interconnections imposed by the HETS Operator.

o) The zonal and systemic needs of the HETS in Balancing Capacity.

p) Events that are notified to the HETS Operator, in accordance with the HETS Grid Code.

q) The declarations of maximum daily energy injection constraint.

r)Other information collected and/or notified to the HETS Operator in accordance with the HETS Grid Code, as well as other technical data and simulation data regarding the operation of the HETS.

On the basis of the data sent by the Energy Exchange, the HETS Operator shall determine:

a) the Final Internal Schedules per Dispatch Period of the Dispatch Day, which correspond to Balancing Service Entities and Balance Responsible Entities in Greece and are equal to the Market Schedules sent by the Energy Exchange, and

b) the Final External Schedules per Dispatch Period of the Dispatch Day, which correspond to import/export schedules at the interconnections, and take into account the Market Schedules, the schedules among Transmission System Operators, any imbalances due to technical constraints on interconnection lines and the import/export imbalances included in the latest Physical Transmission Rights Declarations of the Participants, caused:

      i. either by the difference between the imported quantity included in the Market Schedule of a Participant and his nomination of long-term Physical Transmission Rights for electricity imports through an interconnection where there is an obligation for physical delivery,

     ii. or by the difference between the quantities of energy sold/bought on the Day-Ahead Market that correspond to the short-term Physical Transmission Rights and the quantities of energy sold/bought on the Day-Ahead Market(s) of neighboring countries that correspond to the same short term Physical Transmission Rights.