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NOTICE DATE:  November 28, 2017

NOTICE TYPE:  R-A092817-04 Release - Retail

SHORT DESCRIPTION:  Reminder - Retail Release December 2017


DAY AFFECTED:  December 10, 2017 6:00 AM to December 11, 2017 12:00 AM

LONG DESCRIPTION:  ERCOT will be implementing Nodal Protocol Revision Request (NPRR) 778 and Retail Market Guide Revision Request (RMGRR) 139 on December 10, 2017 06:00 AM to December 11, 2017 12:00 AM.

NPRR778, Modifications to Date Change and Cancellation Evaluation Window, removes the one Retail Business Day evaluation window for date changes and cancellations to facilitate the replacement of manual processes with transactional solutions when possible.

RMGRR139, Alignment with NPRR778, Modifications to Date Change and Cancellation Evaluation Window, modifies market processes to align with changes proposed by NPRR778.

ADDITIONAL INFORMATION:  ERCOT systems may experience intermittent service interruptions during the implementation period. Impacts 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

Information on upcoming releases can be found on the Project Priority List (PPL)<http://www.ercot.com/services/projects/>.

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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