NOTICE DATE:  September 15, 2011

NOTICE TYPE:  M-B091511-01 NPRR

SHORT DESCRIPTION:  Implementation details of NPRR346

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  September 27, 2011

LONG DESCRIPTION:  On September 27, 2011, ERCOT will implement Nodal Protocol Revision Request (NPRR) 346, Removal of Redundant Posting Requirements Related to Electrical Bus Changes, which was approved by the ERCOT Board on July 19, 2011. NPRR346 removes a redundant posting requirement from Protocol Section 3.5.1, Process for Defining Hubs, because similar information is already being posted per Protocol Section 3.5.3.1, Posting of Hub Buses and Electrical Buses included in Hubs.

ADDITIONAL INFORMATION:  Pursuant to 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.

NPRR346 and associated documents can be found on the ERCOT website, under Market Rules, at http://www.ercot.com/mktrules/issues/nprr/326-350/346/index.

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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