Saudi Arabian Grid Code May 2024

Additional Dispatch Instructions In addition to Dispatch Instructions relating to Dispatch of Active Power and Reactive Power, Dispatch Instruction may also include those relating to the following: (i) Reserve: Details of the reserve to be carried by each Generating Unit/ Station including specification of the timescale in which that reserve may be transferable into increased Generating Unit/Station output. (ii) System Services: An instruction for a User to provide System Services. (iii) Secondary Control Mode: A requirement for change to or from Secondary Control Mode for each Generating Unit. (iv) Tests: An instruction to carry out tests as required under section (4.8) or (4.9) of Chapter 4: Operating Code. System Emergency Conditions In order to maintain Transmission System integrity under System Emergency Conditions, the TSP may issue Dispatch Instructions to Generators to operate outside the limits implied by the then current Declarations. When issuing such a Dispatch Instruction, the TSP shall inform the Generator that the Dispatch Instructions is being issued under System Emergency Conditions. Where the TSP has issued a Dispatch Instructions in accordance with the provisions for System Emergency Conditions requiring operation of a Generating Unit outside the limits applied by the then applicable Chapter 5 - Scheduling and Dispatch Code The Saudi Arabian Grid Code Updated Version: May 2024 Declarations, then the Generator must comply with the Dispatch Instructions. Generating Unit/Station Parameter Changes Each Generator at its Generating Unit/Station will without delay notify the TSP by telephone of any change or loss (temporary or otherwise) to the operational capability including any changes to the Scheduling and Dispatch Parameters of each Generating Unit which is Synchronized or has been instructed to Synchronize within the next three (3) hours. If, for any reason, including a change of Availability or Scheduling and Dispatch Parameters made by the Generator, the prevailing Dispatch Instruction in respect of any Generating Unit is no longer within the applicable Availability or Scheduling and Dispatch Parameters then: (i) the Generator will use reasonable endeavors to secure that a revised Dispatch Instruction is issued by the TSP such that the new Dispatch Instruction is within the now applicable Availability and/or Scheduling and Dispatch Parameters; and (ii) if the TSP fails to issue such a new Dispatch Instruction within a reasonable time then the relevant Generator shall be entitled to change the operation of such Generating Unit to bring its operation within the applicable Availability and/or Scheduling and Dispatch Parameters until the TSP issues a new Dispatch Instruction within the applicable Availability and/or Scheduling and Dispatch Parameters. Prior to making such a change in operation, the Generator will use reasonable endeavors to advise the TSP (by telephone and then confirming it by fax) of its intended action and the timing of the intended action.