Saudi Arabian Grid Code May 2024

Energy and Demand metering for both Active and Reactive Power shall be required at every Metering Point. 7.6.2 The Meters shall have the capability to separately record the flow of Active and Reactive Power and import and export of Energy at each Connection Point on the Grid. 7.6.3 The Meters shall have the capability to measure Power flows in all the quadrants in which such flow is possible. 7.6.4 The Meters shall be configured to record/store peak demand data in quarter- hourly integration periods. Metering Data Storage and Availability 7.7.1 The TSP shall create, maintain and administer a metering database containing the following information: (i) name and unique identifier of the Metering Installation; (ii) date of installation; (iii) the date of Commissioning of the installation and Commissioning documents; (iv) the connecting parties at the Metering Installation; (v) date of Energization; (vi) Fault, repair, and maintenance history for each Metering Installation; (vii) telephone numbers used to retrieve information from the Metering Installation; (viii) type of the Meter at the Metering Installation; and (ix) calibration certificates for all the Metering Equipment. 7.7.2 Data storage facilities for metering data shall be provided as follows: (i) a storage capacity of ninety-six (96) periods per day for a minimum of thirty (30) days for all Demand Values; (ii) the stored Demand Values shall be integer values of kW or kvar and have a resolution of at least 0.1% (at full load); (iii) the accuracy of the Energy values derived from Demand Values shall be within 0.1% (at full load) of the amount of Energy measured by the associated Meter; Chapter 7 - Metering Code The Saudi Arabian Grid Code Updated Version: May 2024 (iv) the value of any Energy measured in a Demand Period but not stored in that Demand Period shall be carried forward to the next Demand Period; (v) in the event of a Metering Equipment Power supply failure, the Metering Equipment shall protect all data stored up to the time of the failure, and maintain the time accuracy in accordance with (7.11); (vi) to cater for continuous supply failures, the clock, calendar and all data shall be supported for a period of fifteen (15) days without an external supply connected; (vii) any "read" operation shall not delete or alter any stored metered data; and (viii) Upon request by the data collection system, the Metering Equipment shall provide any portion of the stored data. 7.7.3 The TSP shall be the owner of all the metering data and shall keep these data for at least five (5) years for audit trail purposes. 7.7.4 The TSP shall maintain in duplicate a continuous log on which shall be recorded at the end of every billing period the readings of all the Meters and instruments pertaining to delivery of, and billing for, Demand and Energy supplied by the TSP or taken by it. Such logs shall also show a brief statement giving complete facts of Interruption or other unusual Events affecting the service. The TSP shall deliver one set of the said duplicates each month to the User, upon request. 7.7.5 User’s metered data shall be considered strictly confidential and shall not be disclosed to anyone, except to that User or the Regulator. 7.7.6 The TSP shall provide a User direct access to its Meter pulse data, if required by the User. However, this access will be restricted to Check Meter data only and will be in the same format that the Main Meter supplies to the TSP Meter reading process. Any cost incurred by the TSP for this purpose shall be borne in full by the relevant User. 7.7.7 All the Metering Systems shall have the capability of electronic data transfer. However, during the transition period, on-Site meter reading and reporting may be needed. 7.7.8 If on-Site meter reading is necessary, it shall be witnessed by authorized representatives of all concerned parties.