NOTICE DATE:  May 3, 2013

NOTICE TYPE:  M-B050313-01 Outage – Retail/Wholesale

SHORT DESCRIPTION:  Planned system maintenance with impacted services    


DAY AFFECTED:  May 8, 2013, 16:00 – 21:00 CDT

LONG DESCRIPTION:  ERCOT will be performing planned system maintenance of several source databases and applications on May 8, 2013, within a maintenance window of 16:00 – 21:00 CDT. During this system maintenance, market submissions will be unavailable for approximately 45 minutes and real-time communications will be unavailable for approximately five minutes. All systems should re-establish communications automatically.

During the maintenance period, Market Participants may experience intermittent issues with the following services:

·         Market submissions and requests via WebServices, Market Manager and Outage Scheduler

·         Report publishing to the ERCOT Market Information System (MIS)

·         Downloading of extracts and reports from MIS and WebServices.

During the outage, please use the following URLs to directly access the Market Manager and Outage Scheduler: 

Note that the outage is scheduled to begin at approximately 16:00 CDT; however, this start time may be delayed depending on the current system conditions. A Hotline call will be made to Market Participants to announce the start of the outage, and another Hotline call will be made at the completion of the outage.

ACTION REQUIRED:  Qualified Scheduling Entities (QSEs) with Resources will need to follow Emergency Base Points during the outage. QSEs and Transmission Service Providers (TSPs) will need to refrain from making submissions in Market Manager and Outage Scheduler during the outage period as the submissions will not be accepted.

ADDITIONAL INFORMATION:  Note that the Current Day Reports (CDR) system will be impacted. Reports will be rerun and reposted as applicable. The MIS Dashboards and price displays will not be populated with data during this timeframe.  

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]

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: