NOTICE DATE: September 29, 2011 NOTICE TYPE: W-A070111-04 Operations SHORT DESCRIPTION: Additional analysis related to the RMR status for NRG Texas Power LLC, Greens Bayou Unit 5 INTENDED AUDIENCE: ERCOT Market Participants DAY AFFECTED: October 1, 2011 LONG DESCRIPTION: On August 30, 2011, ERCOT issued a final determination that the following Generation Resource was needed for Reliability Must-Run (RMR) Service to support ERCOT System reliability, based on the Notification of Suspension of Operations (NSO) received from NRG Texas Power LLC on June 30, 2011: * NRG Texas Power LLC - GBY_GBY_5. ERCOT has performed additional analysis and has determined that Greens Bayou Unit 5 is not needed for RMR Service and can proceed to mothball status, effective October 1, 2011. ADDITIONAL INFORMATION: The Notification of Suspension of Operations is posted on the ERCOT Market Information System (MIS) Secure Area on the Grid/Generation page under Reliability Must Run at https://mis.ercot.com/pps/tibco/mis/Pages/Grid+Information/Generation. An ERCOT digital certificate is required to access the MIS. 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 ############################ To unsubscribe from the NOTICE_CRR list: write to: mailto:[log in to unmask] or click the following link: http://lists.ercot.com/SCRIPTS/WA-ERCOT.EXE?SUBED1=NOTICE_CRR&A=1