NOTICE DATE: March 27, 2012 NOTICE TYPE: M-A032712-01 Extracts SHORT DESCRIPTION: Public Reference Data Extract table additions INTENDED AUDIENCE: ERCOT Market Participants DAY AFFECTED: April 27, 2012 LONG DESCRIPTION: ERCOT will add the GENERATORSITEHIST and GENERATORHIST tables to the Public Reference Data Extract (PRDE) during the scheduled ERCOT April release on April 26, 2012, with a first run date of April 27, 2012. These new tables will give complete generator information for mapping prices back to the generator. ADDITIONAL INFORMATION: The Public Reference Data Extract User Guide<http://www.ercot.com/services/mdt/userguides/index> and the Settlements Join Diagram<http://www.ercot.com/services/mdt/userguides/index> will be updated and reposted in the Market Data Transparency<http://www.ercot.com/services/mdt> area of ERCOT.com on April 27, 2012. The DDL and XSD for the PRDE will also be updated and reposted in the Market Data Transparency<http://www.ercot.com/services/mdt> area of ERCOT.com on April 27, 2012. 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