PDCWG Report to ROS October 16, 2008 Bob Green PDCWG Chair Garland Power & Light.

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Presentation transcript:

PDCWG Report to ROS October 16, 2008 Bob Green PDCWG Chair Garland Power & Light

NERC CPS1 for September 2008 = NERC Twelve Month rolling Average CPS1 =

119.25

133.03

ERCOT’s Performance to the Proposed New Balancing Authority ACE Limit Standard Based on 1 minute averages of frequency For ERCOT: FreqTrigLow= Hz FreqTrigHigh=60.068Hz first minute: Event 5 minutes in a row: Alarm 30 min in a row: Violation Hurricane Ike made landfall at 02:10 am Saturday, Sept. 13 th.

Tuesday, Sept 16th Sunday, Sept 14 th

Governor dead bands can create resource MW output oscillations

Comments The PDCWG met on October 14 and 15. The PDCWG has been working with the TRE to develop SAR-003, the CPS2 Waiver (BAL-001 Regional Variance). The PDCWG completed analysis of Wind Generator inertia and governor response. The PDCWG continues to discuss Nodal market expected control performance. The next meeting is November 11 and 12.