NOTICE DATE: October 27, 2010 NOTICE TYPE: W-D102710-01 Operations SHORT DESCRIPTION: Notification of Change of Generation Resource Designation for Luminant Generation Company LLC, Permian Basin Unit 6 INTENDED AUDIENCE: ERCOT Market Participants DAY AFFECTED: December 1, 2010 LONG DESCRIPTION: On October 26, 2010, Luminant Generation Company LLC submitted a Notification of Change of Generation Resource Designation indicating that Permian Basin Unit 6 will be changing status from RMR to Mothballed on December 1, 2010. The Notification of Change of Generation Resource Designation is posted on the ERCOT website at https://tmlretail.ercot.com/ercot/Participants/PublicMarketInfo/RMR.htm. You must have an ERCOT digital certificate to access this site. 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<http://lists.ercot.com/>. dh