NOTICE DATE: August 11, 2011

NOTICE TYPE: M-B081111-01 Extracts – Retail

SHORT DESCRIPTION: Filename changes for TDSP ESIID Extract

INTENDED AUDIENCE: All Market Participants

DAY AFFECTED: September 6, 2011

LONG DESCRIPTION: On September 6, 2011, ERCOT will implement changes to the file naming conventions of the TDSP ESIID Extract with the first full file posting of the month. These changes are being implemented in order to align the file names of the report with the actual names of the Transmission/Distribution Service Provider (TDSP) territories for which the data resides.

The information below contains both the current name of the report as well as the updated filename. Not all files will be impacted.

Current Name:	Updated Name:
ext.00000203.0000000000000000.YYYYMMDD.HHMISS.RELIANT_HLP_NEW	ext.00000203.0000000000000000.YYYYMMDD.HHMISS.CENTERPOINT_NEW
ext.00000203.0000000000000000.YYYYMMDD.HHMISS.RELIANT_HLP_FUL	ext.00000203.0000000000000000.YYYYMMDD.HHMISS.CENTERPOINT_FUL
ext.00000203.0000000000000000.YYYYMMDD.HHMISS.WTU_ENERGY_NEW	ext.00000203.0000000000000000.YYYYMMDD.HHMISS.AEP_NORTH_NEW
ext.00000203.0000000000000000.YYYYMMDD.HHMISS.WTU_ENERGY_FUL	ext.00000203.0000000000000000.YYYYMMDD.HHMISS.AEP_NORTH_FUL
ext.00000203.0000000000000000.YYYYMMDD.HHMISS.CPL_ENERGY_NEW	ext.00000203.0000000000000000.YYYYMMDD.HHMISS.AEP_CENTRAL_NEW
ext.00000203.0000000000000000.YYYYMMDD.HHMISS.CPL_ENERGY_FUL	ext.00000203.0000000000000000.YYYYMMDD.HHMISS.AEP_CENTRAL_FUL

ADDITIONAL INFORMATION: These changes are specific to the TDSP files which are out of synch with the legal TDSP names. These changes will not impact the report ID, naming standard, format of data, or frequency of any of the reports.

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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JR/DH