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NOTICE DATE:  December 8, 2017

NOTICE TYPE:  R-A092817-05 Release - Retail

SHORT DESCRIPTION:  Reminder - Retail Release December 2017

INTENDED AUDIENCE:  ERCOT Market Participants

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:

Information on upcoming releases can be found on the Project Priority List (PPL).

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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