NOTICE DATE: December 21, 2009 NOTICE TYPE: M-A122109 -01 TCR SHORT DESCRIPTION: 2010 TCR Calendar Auction Calendar INTENDED AUDIENCE: TCR Account Holders DAY AFFECTED: December 22, 2009 LONG DESCRIPTION: The 2010 TCR Auction Calendar has been posted to the TCR website. The URL https://tcr.ercot.com/?func=tcrpostings will take you to the Posting/News portion of the TCR website. The 2010 Auction Calendar will be located under TCR Auction & Credit Calendars. 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 e-mail at [log in to unmask]<mailto:[log in to unmask]>. If you are receiving e-mail 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<http://lists.ercot.com/>. DH/JR