NOTICE DATE: December 6, 2021


SHORT DESCRIPTION: Implementation details of PGRR089

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: December 17, 2021

LONG DESCRIPTION: On December 17, 2021, Planning Guide language associated with Planning Guide Revision Request (PGRR) 089, Planning Data and Information Updates for Planning Posting, will be implemented.

PGRR089 modifies the ERCOT Planning Guide to make changes to the list of data sets posted to the Market Information System (MIS) in Planning Guide Section 7.1, Planning Data and Information.  

ADDITIONAL INFORMATION: Pursuant to Planning Guide Section 1.2.5, Planning Guide Revision Implementation, ERCOT is required to provide notice as soon as practicable, but no later than ten days prior to implementation.

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].

PGRR089 and associated documents can be found on the ERCOT website.

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