NOTICE DATE:  March 27, 2015
NOTICE TYPE:  W-B032715-01 Operations
SHORT DESCRIPTION:  Issue with Ancillary Services Obligations for March 27, 2015
INTENDED AUDIENCE:  ERCOT QSEs
DAY AFFECTED:  March 26, 2015 - current
LONG DESCRIPTION:  On March 26, 2015, ERCOT posted incorrect Ancillary Service obligations for QSEs with obligations of less than 1 MW for the Operating day of March 27, 2015.  Ancillary Service obligations of less than 1 MW are normally rounded down to Zero instead of the fractional amounts posted prior to the Day-Ahead Market Operating day of March 27, 2015.  The incorrect postings were a result of the Market Management and Outage Scheduler Systems Tech Refresh Project Production Cutover earlier this week and the issue has now been resolved.
The posted Ancillary Service obligations of less than 1MW for the Operating day of March 27, 2015 have been set to Zero so that the impacted QSEs will not be charged for Ancillary Service Obligations that were not self-arranged.
CONTACT:  If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask]<mailto:[log in to unmask]>.
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