NOTICE DATE: May 8, 2008 NOTICE TYPE: W-A050808-01 Resettlement CLASSIFICATION: Public SHORT DESCRIPTION: ERCOT has resettled Operating Day April, 24, 2008 INTENDED AUDIENCE: QSE Settlement Personnel DAY AFFECTED: Operating Day April 24, 2008 LONG DESCRIPTION: ERCOT discovered an issue with the Settlement data used for Initial Settlement of April 24, 2008. The data issues were caused by a system error. ERCOT has resettled Operating Day April 24, 2008. Details regarding the Resettlement are in the table below: Affected Operating Day April 24, 2008 Publication Date of Previous Settlement Statement May 5, 2008 Publication Date of Resettlement Statement May 8, 2008 Invoice Date of Resettlement Statement May 8, 2008 ADDITIONAL INFORMATION: Statements for the Resettlement of the affected Operating Day will be posted on May 8, 2008. Both the Initial Settlement and Resettlement of April 24, 2008 will be invoiced on May 8, 2008. Invoicing both Settlement runs on the same day ensures that all Market Participants are charged and paid properly and minimizes the impact to the Market. 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/> . yl