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NOTICE DATE:  April 18, 2019

NOTICE TYPE:  M-A041219-02 Settlements

SHORT DESCRIPTION:  Real-Time Market (RTM) Resettlement for Operating Day August 9, 2018

INTENDED AUDIENCE:  QSE Settlement Personnel

DAY AFFECTED:  Operating Day August 9, 2018

LONG DESCRIPTION:  ERCOT found an issue in its Settlement system interface which impacted the Real-Time Ancillary Service Supply Responsibility for QSEs (RTASRESP) used in the calculation of Real-Time Ancillary Service Imbalance Amount (RTASIAMT) and Real-Time Reliability Deployment Ancillary Service Imbalance Amount (RTRDASIAMT) for two Operating Days (ODs) -August 9, 2018 and August 19, 2018.

This Market Notice is to inform Market Participants that ERCOT is issuing an RTM Resettlement Statement for Operating Day August 9, 2018. Resettlement details are in the tables below.



Affected Operating Day

August 9, 2018

Description of reason for Resettlement

Settlement system interface issue

Affected Settlement Charge Types

RTASIAMT, LAASIRNAMT, RTEIAMT, LARTRNAMT

Publication Date of Previous Settlement Statement

February 5, 2019

Publication Date of Resettlement Statement

April 18, 2019

Invoice Date of Resettlement Statement

April 18, 2019



Resettled Charge Types

Resettlement Amount

Real-Time Ancillary Service Imbalance Amount (RTASIAMT)

$(901.31)

Load-Allocated Ancillary Service Imbalance Revenue Neutrality (LAASIRNAMT)

$901.21

Real-Time Energy Imbalance Amount (RTEIAMT)

$109.34

Real-Time Revenue Neutrality Allocation Amount (LARTRNAMT)

$(108.83)



ADDITIONAL INFORMATION:  Please review the ERCOT website for previous Market Notices<http://www.ercot.com/services/comm/mkt_notices/archives/search?nc=all&per=&pg=&q=M-A041219&sort=> related to this subject.

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]<mailto:[log in to unmask]>.

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