NOTICE DATE:  January 24, 2013

NOTICE TYPE:  M-A012413-01 Outage - Retail/Wholesale

SHORT DESCRIPTION:  Planned system maintenance with impacted services

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  January 27, 2013, 08:00 - 14:00 CST

LONG DESCRIPTION:  ERCOT will be performing planned system maintenance on January 27, 2013, within a maintenance window of 08:00 - 14:00 CST.

During this outage window, Market Participants may experience intermittent issues with the following services:

*          ERCOT.com

*         ERCOT.com dashboards and displays

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]>.



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