NOTICE DATE: March 20, 2008 NOTICE TYPE: M-A031708-05 UPDATE Extracts - Wholesale/Retail CLASSIFICATION: Public SHORT DESCRIPTION: Invoices have been posted INTENDED AUDIENCE: All Market Participants DAY AFFECTED: March 20, 2008 LONG DESCRIPTION: The invoices for March 20, 2008 have been posted. The Statements expected to post today will be delayed. The Settlement Calendar has been updated to reflect the change. The delay occurred due to the unplanned outage that occurred on March 20, 2008. ERCOT is continuing to experience delays with the following reports. An update will be provided as information becomes available. Settlement Input Data (SID) Market Shadow Prices (SHP) 867_03 Activity Report Forecasted Transmission Loss Factor Actual Transmission Loss Factor TDSP Distribution Loss Factors - Forecasted TDSP Distribution Loss Factors - Actual Unaccounted For Energy Load Estimation Counts Load Estimation Volume ESI ID Consumption Data Loading - IDR Protocol Compliance - Daily ADDITIONAL INFORMATION: All extracts/reports listed above have been posted for March 15-18, 2008. 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] <blocked::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/> yl