*******TEXAS NODAL MARKET NOTICE******* NOTICE DATE: June 6, 2008 NOTICE TYPE: Nodal - Implementation Schedule for Nodal Market Transition Activities CLASSIFICATION: Public SHORT DESCRIPTION: Implementation schedule for nodal market transition activities INTENDED AUDIENCE: All Market Participants DAY AFFECTED: Various, see below LONG DESCRIPTION: In accordance with Protocol Section 21.12.2, Notice to Market Participants of Activities Essential for Nodal Market Open, ERCOT is providing an update of the implementation schedules for the following nodal market transition activities. At the May 20, 2008 ERCOT Board of Directors meeting, ERCOT announced a delay in the implementation of the Texas Nodal Market. Consequently the dates for all major milestones in the Nodal project have been delayed as well. ERCOT is actively working with the market to determine a new Nodal Market Implementation Date as well as due dates for each of the major milestones. Milestone Scheduled Date Single entry model TBD Initiation of the 168-hour testing TBD Completion of 168-hour test TBD First congestion revenue rights monthly auction TBD Real-time market implementation TBD Day-ahead market implementation TBD 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/> .