NOTICE DATE:  March 15, 2012

NOTICE TYPE:  W-B031412-02 Extracts – Wholesale

SHORT DESCRIPTION:  Incorrect postings within the 48 Hour Ancillary Services Reports

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  Operating Day March 11, 2012

LONG DESCRIPTION:  There were five files contained in the 48 Hour Ancillary Services Report (NP3-911-ER) with the prefix “48h_Self_Arranged_AS_...” that were posted on March 13, 2012, with incorrect data for Operating Day March 11, 2012. The zip file containing these incorrect files has been removed from the Market Information System (MIS).  A file posted yesterday (without the “48h_Self_Arranged_AS” files) has been removed. 

Name of the removed zip file:

ext.00013057.0000000000000000.20120314.125621.48_Hour_AS_Disclosure

The corrected file containing the five files for Operating Day March 11, 2012 has been posted.

Name of the new file:

ext.00013057.0000000000000000.20120315.125409.48_Hour_AS_Disclosure.zip

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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