In this example, Assume the resource has 100 MW of RA Capacity The ISO first evaluates Forced Outage subject to SCP outage availability, which equals 50 MW OF1 curtailment divided by 100 MW RA Capacity, or 50%. Then ISO then calculates the RA Capacity subject to SCP, which equals 100 MW RA Capacity minus the 50 MW of OF2 capacity not subject to SCP, or 50 MW. Finally, ISO then calculates the availability MW for this resource this hour, which equals 50% of the 50 MW RA Capacity subject to SCP, or 25 MW. Example 3: Resource availability and SCP availability calculation per hour with forced outage not subject to SCP Resource has a Pmax of 100 MW Evaluate 1 of the assessment Resource has two Forced Outages OF1 is a Forced Outage subject to SCP that curtails the resource by 50 MW for the first 30 minutes of the hour. OF2 is a Forced Outage not subject to SCP that curtails the resource by 100 MW for the last 18 minutes of the hour. In this example, the resource curtailment due to forced outage OF1 will be 25 MW and the resource curtailment due to Forced Outage OF2 will be 30 MW. The 30 MW associated with the outage OF2 will not be included it in the resource availability calculation. The ISO will consider the resource as available for 75 MW this hour (75 = 100 - 25, or Pmax minus forced outage subject to SCP outage curtailment). In the scenario where the resource has MW not subject to the SCP calculation, the ISO will first evaluate the Forced Outage subject to SCP outage availability, which equals the Forced Outage subject to SCP availability divided by the RA capacity. It will then calculate the capacity subject to SCP, which equals the RA capacity of the resource minus the curtailment value not subject to SCP for the hour. Finally, it will calculate the availability MW for the resource for this hour by comparing the Forced Outage subject to SCP outage availability percentage to the capacity subject to SCP, which equals the Forced Outage subject to SCP outage availability percentage multiplied by the RA capacity subject to SCP. In this example, Assume the resource has 100 MW of RA Capacity.
In this example, Assume the resource has 100 MW of RA Capacity The ISO first evaluates Forced Outage subject to SCP outage availability, which equals 50 MW OF1 curtailment divided by 100 MW RA Capacity, or 50%. Then ISO then calculates the RA Capacity subject to SCP, which equals 100 MW RA Capacity minus the 50 MW of OF2 capacity not subject to SCP, or 50 MW. Finally, ISO then calculates the availability MW for this resource this hour, which equals 50% of the 50 MW RA Capacity subject to SCP, or 25 MW. Example 3: Resource availability and SCP availability calculation per hour with forced outage not subject to SCP Resource has a Pmax of 100 MW Evaluate 1 of the assessment Resource has two Forced Outages OF1 is a Forced Outage subject to SCP that curtails the resource by 50 MW for the first 30 minutes of the hour. OF2 is a Forced Outage not subject to SCP that curtails the resource by 100 MW for the last 18 minutes of the hour. In this example, the resource curtailment due to forced outage OF1 will be 25 MW and the resource curtailment due to Forced Outage OF2 will be 30 MW. The 30 MW associated with the outage OF2 will not be included it in the resource availability calculation. The ISO will consider the resource as available for 75 MW this hour (75 = 100 - 25, or Pmax minus forced outage subject to SCP outage curtailment). In the scenario where the resource has MW not subject to the SCP calculation, the ISO will first evaluate the Forced Outage subject to SCP outage availability, which equals the Forced Outage subject to SCP availability divided by the RA capacity. It will then calculate the capacity subject to SCP, which equals the RA capacity of the resource minus the curtailment value not subject to SCP for the hour. Finally, it will calculate the availability MW for the resource for this hour by comparing the Forced Outage subject to SCP outage availability percentage to the capacity subject to SCP, which equals the Forced Outage subject to SCP outage availability percentage multiplied by the RA capacity subject to SCP. In this example, Assume the resource has 100 MW of RA Capacity.
BPM_for_Reliability_Requirements_V27_clean.docx