NOTICE DATE:  February 7, 2012

NOTICE TYPE:  W-A020712-01 Release – Wholesale

SHORT DESCRIPTION:  Implementation of market-facing changes


DAYS AFFECTED:  February 22 –24, 2011

LONG DESCRIPTION:  ERCOT will be implementing a number of market-facing changes in the production environment between February 22 and 24, 2012. Please see the attached spreadsheet for the description and estimate of the release date for each change.

ADDITIONAL INFORMATION:  ERCOT may experience intermittent service interruptions during the implementation period. The systems include, but are not limited to:

·         Market Participant notifications

·         Outage Scheduler User Interface

·         Market Management System User Interface

·         Components of the MIS may be intermittently unavailable including:

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

·         Current Day Reports without retry functionality may not be rerun for the missed postings during the outage time

·         MIS and dashboards will be intermittently unavailable

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



·         Components of the External Web Services (EWS) may be intermittently unavailable

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].

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