***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. *****

NOTICE DATE:  December 10, 2018

NOTICE TYPE:  R-A121018-01 Release-Retail

SHORT DESCRIPTION:  Retail Release December 2018

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  December 16, 2018 6:00 AM to 6:00 PM

LONG DESCRIPTION:  ERCOT will be implementing some system changes in the production environment on December 16, 2018 6:00 AM to 6:00 PM.

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

*       Market Participants utilizing NAESB to send/receive transactions to/from ERCOT will NOT be able to send/receive transactions to/from ERCOT during the outage. This includes all retail transactions.
*       867 transactions will NOT be forwarded during the outage.
*       997 Functional Acknowledgements will NOT be sent during the outage.
*       MarkeTrak will be unavailable for the duration of the outage.

*       Retail Application components of the Market Information System (MIS) and the Retail API will be unavailable

*       Retail Reports and Extracts may be impacted during the outage timeframe
*       eService application will be unavailable on the MIS

*       Find ESIID and Find Transaction will be 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]<mailto:[log in to unmask]>.

If you are receiving email from a public 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.



sa