NOTICE DATE: April 11, 2011

NOTICE TYPE: W-B041111-01 Financial/Credit

SHORT DESCRIPTION: Adjustments to ACL Summary Report and AIL Detail Report

INTENDED AUDIENCE: Counter-Parties, CRRAHs and QSEs

DAY AFFECTED: March 24, 2011

LONG DESCRIPTION: ERCOT modified the Available Credit Limit (ACL) Summary Report and the Aggregate Incremental Liability (AIL) Detail Report formats on March 24, 2011.

Available Credit Limit (ACL) Summary Report (FNC-470-SG):

The following columns were added to allow Counter-Parties to view the credit limit locked for the CRR Auction and to view the remaining credit limit available for the Day-Ahead Market (DAM).

· ACL Sent to CRR

· ACL Locked by CRR

· ACL Sent to DAM.

Aggregate Incremental Liability (AIL) Detail Report (NP16-670-SG):

The Average Price ($) column was deleted as the summary level information is ambiguous and Credit Monitoring and Management (CMM) does not have sufficient detailed pricing by Market Participant to perform a more detailed calculation.

CONTACT: If you have any questions, please contact Vanessa Spells at [log in to unmask], (512) 225-7014 or Rizaldy Zapanta at [log in to unmask], (512) 225-7015. Additional questions can be directed to your assigned ERCOT Account Manager, [log in to unmask], or (512) 248-3900.

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