NOTICE DATE: January 19, 2009
NOTICE TYPE:  M-A011909-01 Outage - Wholesale
SHORT DESCRIPTION:  Scheduled outage of Market Operations System (MOS)
INTENDED AUDIENCE:  QSE Operations Personnel
DAY AFFECTED:  January 29, 2009

LONG DESCRIPTION:  ERCOT has scheduled a brief outage of the Market Operating System (MOS) to accomplish an update to the Market Database. The migration will be accomplished in one brief outage in order to minimize the impact to Balancing Intervals.

The outage will last approximately 10 - 12 minutes and will affect all MOS functions, including Schedule and Bid submissions, Deployments, MOS Public and the MOS API Listener. The exact timing of the outage will be determined on the day of the outage based on market and transmission system stability.  QSEs will be notified prior to and immediately after the outage via a Hotline call.
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/>.
sg