Saudi Arabian Grid Code May 2024

The Generation Schedule 5.3.6.1 Each day by 15:00 hours, the TSP shall develop, by means of an appropriate Scheduling program or process, a Generation Schedule for the next following Schedule Day that will utilize the last valid set of Scheduling and Dispatch Parameters for the Generating Unit as applicable. 5.3.6.2 The Generation Schedule shall be prepared by the TSP to Schedule such Generating Units for which the TSP had received Availability Notice to achieve the following: (i) minimize the cost of procuring the required Electricity in accordance with the relevant Power Purchase Agreements to match the Forecast Demand; (ii) match at all times (to the extent possible) the Forecast Demand with an appropriate Operating Margin; (iii) match minimum electricity Demand levels together with a sufficient Minimum Demand Regulation; and (iv) maintain Frequency Control. 5.3.6.3 The TSP will give priority in dispatch for cogeneration and Sustainable Resource Generation plants taking into consideration the conditions under clause 5.3.6.2. 5.3.6.4 Factors to be taken into account In preparing the Generation Schedule, the TSP will consider the following factors: (i) Forecast Demand and its geographical distribution; (ii) Declared MW capabilities of Generators; (iii) System Services capabilities of Generators; (iv) Operating Characteristics of Generators; (v) System Constraints; (vi) Generation costs of each Generating Unit; (vii) Generating Unit Outages; (viii) Voltage Control requirements; (ix) System Stability factors; (x) Operating Margin requirements; (xi) System losses; Chapter 5 - Scheduling and Dispatch Code The Saudi Arabian Grid Code Updated Version: May 2024 (xii) System Frequency Control requirements; (xiii) any testing to be carried out; (xiv) operation of Generating Unit to provide a sufficient Minimum Demand Regulation; and (xv) any other factors as may be reasonably considered by the TSP to be of relevance to the Generation Schedule. 5.3.6.5 The Generation Schedule issued to each Generator by the TSP shall contain the information relating to the Generating Units of that Generator only. 5.3.6.6 The Generation Schedule will be only indicative, and will be intended to provide a guide to the expected output requirements from Generators and will not be construed as Dispatch Instructions or orders by itself. 5.3.6.7 The information contained in the Generation Schedule will indicate on an individual Generating Unit basis the period for which it is Scheduled during the following Schedule Day. 5.3.6.8 Revision to Scheduling and Dispatch Data At any time between 10:00 hours each day and the expiry of the next following Schedule Day, a Generator may submit to the TSP any revisions to the submitted data: (i) If the revised Generation Data is received by the TSP before 15:00 hours on the day prior to the relevant Schedule Day, the TSP shall, if possible, take into account the revised Availability Notice in preparing the Generation Schedule. (ii) If the revised Generation Data is received by the TSP at or after 15:00 hours but before the end of the next following Schedule Day, the TSP shall, if it re-Schedules the Generating Units, take into account the revised Availability Notice in that re-Scheduling. (iii) Between 15:00 hours on the day before the Schedule Day and 1 hour before real time, the Saudi Sustainable Energy Control Center may send updated Declarations on behalf of Renewable Resource Generation based on updated renewable infeed forecasts. The TSP shall update the Generation Schedule to take into account these updated Declarations.