NOTICE DATE: April 5, 2011 NOTICE TYPE: M-B031711-02 Operations SHORT DESCRIPTION: North to Houston Interface change INTENDED AUDIENCE: ERCOT Market Participants DAY AFFECTED: April 5, 2011 LONG DESCRIPTION: As of April 5, 2011, with the completion of the new Zenith substation, the monitoring points for the North to Houston Interface are changing as follows: Existing New Singleton - Tomball 345kV (74) Singleton - Tomball 345kV (74) Singleton - TH Wharton 345kV (98) Singleton - Zenith 345kV (98) O'Brien - Singleton 345kV (99) Singleton - Zenith 345kV (99) Roans Prairie - Kuykendahl 345kV (75) Roans Prairie - Kuykendahl 345kV (75) This should complete the North to Houston Interface changes for the new Zenith station project (10TPIT0047). ADDITIONAL INFORMATION: For current line outage information, refer to the Outage Scheduler or to the Grid/Transmission page on the ERCOT Market Information System (MIS) at https://mis.ercot.com/pps/tibco/mis/Pages/Grid+Information/Transmission. 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 ############################ 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