NOTICE DATE: December 16, 2010 NOTICE TYPE: W-A121610-01 Extracts - Wholesale SHORT DESCRIPTION: Delayed and missing postings for Resource AS Supply Insufficiency at 1430 Report INTENDED AUDIENCE: ERCOT Market Participants DAYS AFFECTED: December 1 - 14, 2010 LONG DESCRIPTION: The Resource AS Supply Insufficiency at 1430 Report has incurred posting delays and some missing postings for December 1 - 14, 2010. The following posting days were made available on Monday, December 13, 2010. The reports were posted late due to extensive data validations being performed. * Thursday, December 2 * Saturday, December 4 * Sunday, December 5 * Tuesday, December 7 * Wednesday, December 8 * Thursday, December 9 The following posting days were not made available and will not be made available. This is due to the Day Ahead Market (DAM) completing later than scheduled which did not give Market Participants (MPs) time to update their Current Operating Plans (COPs) based on DAM awards before the report was run (although MPs did have the required time of at least one hour to update their COPs prior to the Day-Ahead Reliability Unit Commitment, which was delayed). * Wednesday, December 1 * Friday, December 3 * Monday, December 6 The following posting days were not made available and will not be made available due to system issues. * Friday, December 10 * Saturday, December 11 * Sunday, December 12 * Monday, December 13 The Tuesday, December 14 report file posted early on Wednesday, December 15, 2010. 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]>. If you are receiving email from an ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com. dh