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NOTICE DATE:  May 13, 2014

NOTICE TYPE:  W-A051314-01 NPRR

SHORT DESCRIPTION:  Implementation details of NPRR589

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  June 1, 2014

LONG DESCRIPTION:  On June 1, 2014, ERCOT will partially implement Nodal Protocol Revision Request (NPRR) 589, Ancillary Service Offers in the Supplemental Ancillary Services Market, which was approved by the ERCOT Board on April 8, 2014.  The following Sections will be updated:

These NPRR589 sections add language to the Supplemental Ancillary Services Market (SASM) timeline to allow Qualified Scheduling Entities (QSEs) to submit Ancillary Service Offers after notification of the need to run a SASM.  

ADDITIONAL INFORMATION:  Pursuant to Nodal Protocol Section 21.6, Nodal Protocol Revision Implementation, ERCOT is required to provide notice as soon as practicable, but no later than ten days prior to implementation.   

There are no changes to ERCOT systems required by these NPRR589 sections and associated documents can be found on the ERCOT website.

The NPRR589 language that remains boxed will be implemented at a future date.

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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