NOTICE DATE: August 29, 2013 NOTICE TYPE: M-A082913-01 Release – Retail SHORT DESCRIPTION: ERCOT has an on-cycle Retail Release planned for 12:00 Saturday**, September 28, 2013 through 00:00 Monday, September 29, 2013 **Please note due to operational requirements this Release will begin earlier than the standard Release Window which normally begins at 5:00PM. INTENDED AUDIENCE: ERCOT Market Participants DAYS AFFECTED: ERCOT has an on-cycle Retail Release planned for 12:00 Saturday, September 28, 2013 through 00:00 Monday, September 29, 2013. LONG DESCRIPTION: ERCOT has an on-cycle Retail Release planned for 12:00 Saturday, September 28, 2013 through 00:00 Monday, September 29, 2013. ADDITIONAL INFORMATION: During this outage, the following functions will be affected: * Market participants utilizing NAESB to send/receive transactions to/from ERCOT will NOT be able to send/receive transactions to/from ERCOT * 867 Transactions will NOT be forwarded during the outage * 997 Functional Acknowledgements will NOT be sent during the outage * MarkeTrak will be unavailable for the duration of the outage * Retail components of the MIS and the Retail API will not be available * MPIM will not be available * eService application will be unavailable on the Market Information System (MIS) 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. dg