NOTICE DATE:  May 10, 2011
NOTICE TYPE:   M-B051011-01 Outage Retail/Wholesale
SHORT DESCRIPTION:  Planned system maintenance with impacted services
INTENDED AUDIENCE:  ERCOT Market Participants
DAY AFFECTED:  May 12, 2011, 19:00 - 23:00 CDT
LONG DESCRIPTION:  ERCOT will be performing planned system maintenance of the Market Information System (MIS), Current Day Reports (CDR) databases and applications on May 12, 2011. During this system maintenance, the below list of market services will be intermittently unavailable for about two hours.
Note that the two hour outage is scheduled to begin at approximately 19:00 CDT; however, this start time may be delayed depending on the current system conditions.
During the outage, Market Participants may experience intermittent issues with the following services:
*         Report publishing to the ERCOT MIS
*         Downloading of extracts and reports from MIS and Webservices.
ADDITIONAL INFORMATION:  Reports will be rerun and reposted as applicable. The MIS Dashboards and ercot.com 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]<mailto:[log in to unmask]>.

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