Assessment of POR Performance. In order to assess the quality of delivery of POR when required by the Power System, the Providing Unit will be monitored and assessed during an Event by the Company. The assessment of POR performance is carried out at the time of the Nadir Frequency during the POR time range of T+5 seconds to T+15 seconds (the “POR Period”). The value of the POR Performance Scalar will be determined based on whether the result of the Performance Assessment is a Pass or Fail.
Assessment of POR Performance. In order to assess the quality of delivery of POR when required by the Power System, the Providing Unit will be monitored and assessed during an Event by the Company. The assessment of POR performance is carried out at the time of the Xxxxx Xxxxxxxxx during the POR time range of T+5 seconds to T+15 seconds (the “POR Period”). The value of the POR Performance Scalar will be determined based on whether the result of the Performance Assessment is a Pass or Fail. For the purposes of Section 3.2(c) above, the value of the POR Locational Scalar is as defined in Schedule 9 and shall have a minimum value equal to 1; For the purposes of Section 3.2(c) above, the POR Temporal Scarcity Scalar is an amount equal to: • 1 in the event that SNSP <=60%; • or
Assessment of POR Performance. In order to assess the quality of delivery of POR when required by the Power System, the Providing Unit will be monitored and assessed during an Event by the Company. The assessment of POR performance is carried out at the time of the Xxxxx Xxxxxxxxx during the POR time range of T+5 seconds to T+15 seconds (the “POR Period”). The value of the POR Performance Scalar will be determined based on whether the result of the Performance Assessment is a Pass or Fail. For the purposes of Section 3.2(c) above, the value of the POR Locational Scalar is as defined in Schedule 9 and shall have a minimum value equal to 1; For the purposes of Section 3.2(c) above, the POR Temporal Scarcity Scalar is an amount equal to: • PORTSS1 in the event that SNSP <=60%; or • PORTSS2in the event that SNSP >60% and <=70%; or • PORTSS3 in the event that SNSP >70%; Where: The values of PORTSS1, PORTSS2 and PORTSS3 are as defined in the Protocol document.
Assessment of POR Performance. In order to assess the quality of delivery of POR when required by the power system, the Generating Unit will be monitored and assessed during a Frequency Event in accordance with the provisions of this Section 3 and the provisions of OC11.5.5 of the Grid Code (Spinning Reserve Monitoring) shall not apply to this Agreement. The assessment of POR performance is carried out at one point in time corresponding to the time of the Nadir Frequency during the POR time range of T+5 seconds to T+15 seconds (the “POR Period”). Charges will be applied based on the extent of the difference between the Expected POR and the Achieved POR for the Generating Unit. The basis for calculating the Expected POR is the anticipated Generating Unit response to the Frequency reduction. The increase in the Generating Unit Output is driven by the governor response and is limited by the sustained loading ability of the Generating Unit. In the initial phase of the POR Period it is recognised that the Generating Unit Output may lag behind the theoretical droop determined response due to the physical reaction of the unit to a power system Frequency change, the variation depending on generating unit type. To compensate for this, the assessment uses the POR Governor Droop Multiplier which decays to a value of one over time, the value during the POR Period determined from the POR Governor Droop Multiplier Alpha and the POR Governor Droop Multiplier Beta. If the Achieved POR response is less than the Expected POR response after the application of the Applicable Tolerance a POR failure is recorded. Where a Frequency Event has occurred while the Generating Unit was Synchronised to the power system, the Generating Unit response to any further Frequency Event occurring within 5 minutes after the end of the Frequency Event will not be taken into account for settlement purposes.
