NOTICE DATE:  July 13, 2016

NOTICE TYPE:  W-B070816-04 Financial/Credit

SHORT DESCRIPTION:  Total Potential Exposure (TPE) Calculations Affected by EMS Issue

INTENDED AUDIENCE:  ERCOT Counter-Parties

DAY AFFECTED:  July 13, 2016

LONG DESCRIPTION:  The Energy Management System (EMS) issue that ERCOT experienced on July 7, 2016 impacted the ability to calculate Counter-Party Total Potential Exposure (TPE) and Available Credit Limit (ACLC/ACLD). In accordance with Protocol Section 16.11.4.6(c), the Real Time Liability Completed and Not Settled (RTLCNS) and Real Time Liability Forward (RTLF) components of the TPE and ACL calculations were not included in the credit calculation for Operating Day July 7, 2016.

The RTLCNS calculation input will be restored and included in the TPE and ACL credit calculations on July 13, 2016.  Additionally, the RTLF calculation input will be restored and included in the TPE and ACL credit calculations on July 15, 2016.

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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