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NOTICE DATE:  December 7, 2017

NOTICE TYPE:  W-A120717-01 PGRR

SHORT DESCRIPTION:  Implementation Details of PGRR042

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  January 1, 2018

LONG DESCRIPTION:  On January 1, 2018, the remainder of Planning Guide Revision Request (PGRR) 042, Regional Transmission Plan Model Reserve Requirement and Load-Generation Imbalance Methodology, will be implemented.  Planning Guide Section 3.1.7, Steady State Transmission Planning Load Forecast, will be unboxed.

This section establishes the process for determining the Load level to be used in the starting base cases for the Regional Transmission Plan and in the steady-state evaluation of a Tier 1 project.

ADDITIONAL INFORMATION:  Pursuant to Planning Guide Section 1.2.6, Planning Guide Revision Implementation, ERCOT is required to provide notice as soon as practicable, but no later than ten days prior to implementation.

PGRR042<http://www.ercot.com/mktrules/issues/PGRR042> and associated documents can be found on the ERCOT website.

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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