This Agreed Upon Procedure (AuP) report contains factual findings in connection with specified elements of EirGrid TSO and SONI TSO's Interconnector Net Transfer Capacity (NTC) Calculation process. These procedures were conducted exclusively to assist each TSO in fulfilling their obligation to report on specified elements of the Interconnector NTC Calculation process for the period 1 January 2023 to 31 December 2023.