Saudi Arabian Grid Code May 2024

Data Requirements 4.3.6.1 When requested initially under a Power Purchase Agreement and thereafter by end of December each calendar year, each Generator shall in respect of each of its Generating Units submit to the TSP in writing the Generator Performance Chart and the Generation Planning Parameters to be applied from the beginning of next year onwards, using the schedules provided in Chapter 6: Data and Information Exchange Code. The Generation Planning Parameters shall be used by the TSP for Operational Planning purposes only and not in Scheduling and Dispatch. 4.3.6.2 In the case of a Generating Unit which is capable of firing on two different fuels, the Generator must submit to the TSP, by separate written notifications, the Generation Planning Parameters in respect of each fuel, clearly marked to indicate for which fuel it applies, and also the primary and the standby fuel. 4.3.6.3 The Generator Performance Chart must be on a Generating Unit specific basis at the Generating Unit terminals and must include details of the Generator step-up transformer parameters and demonstrate the limitation on Reactive Power capability of the Transmission System voltage at three (3)% above nominal. 4.3.6.4 For each non-Renewable Resource Generating Unit whose performance varies significantly with ambient temperature, the Generator Performance Chart shall show curves for at least two values of ambient temperature so that the TSP can assess the variation in performance over all likely ambient temperatures by a process of linear interpolation or extrapolation. One of these curves shall be for the ambient temperature at which the Generating Unit output equals its Registered Capacity. 4.3.6.5 For each Renewable Resource Generation whose performance varies significantly as a function of non-controllable external/ environmental parameters, such as (but not limited to) temperature, quantity of dust in the air, wind, solar irradiance, the Generator Performance Chart shall show curves for at least two values for each significant parameter, so that the TSP can assess the variation in performance over all likely values of these Chapter 4 - Operating Code The Saudi Arabian Grid Code Updated Version: May 2024 parameters by a process of linear interpolation or extrapolation. One of these curves shall be for the reference value at which the Generating Unit output equals its Registered Capacity. System Services 4.4.1 Introduction 4.4.1.1 This section deals with System Services which are essential to the proper functioning of the Transmission System, and which also determine the Quality of supply. This section specifically deals with the following System Services: (i) Frequency Control; (ii) Voltage Control; (iii) System Control; (iv) Operating Margin; and (v) Black Start. 4.4.1.2 The TSP shall have control over all System Services, that is, it shall determine what System Services are to be provided, when, and by whom. In the case of RRG, the TSP shall coordinate with and instruct the SSECC in relation to System Services. The SSECC shall then implement the TSP’s instructions, to the extent possible, in a timely manner.