NOTICE DATE: August 18, 2025
NOTICE TYPE: M-A081425-02 Extracts
SHORT DESCRIPTION: Settlement Data Issues
INTENDED AUDIENCE: Settlement Personnel
DAYS AFFECTED: Operating Days August 6, 2025 - August 11, 2025
LONG DESCRIPTION: As previously mentioned in M-A081425-01, ERCOT was notified of an issue regarding incorrect data being included in the Day-Ahead Market Market Operating Day Extract (DAM MODE) and the Settlements Input Data Extract (SID). The extracts were posted with duplicate UIDMKTINPUTNTERVAL values associated to two distinct MKTINPUTHEADER values in the MKTINPUTINTERVAL and MKTINPUTSTATUS output files in Settlement postings for Operating Days August 6, 2025 - August 11, 2025.
These incorrect data issues impacted Settlement runs for the Day- Ahead Market Settlements, and per ERCOT Protocols Section 9.2.5(2), ERCOT has determined the following results for each impacted Operating Day :
|
Operating Day
|
DAM
|
Qualifies for Resettlement
|
Market Participants meeting criteria
|
Maximum Dollar Impact
|
|
08/06/2025
|
DAM
|
Yes
|
1
|
$5,621
|
|
08/07/2025
|
DAM
|
Yes
|
1
|
$8,618
|
|
08/08/2025
|
DAM
|
Yes
|
1
|
$11,624
|
|
08/09/2025
|
DAM
|
No
|
0
|
$0
|
|
08/10/2025
|
DAM
|
No
|
0
|
$0
|
|
08/11/2025
|
DAM
|
No
|
0
|
$0
|
These incorrect data issues also impacted Settlement runs for the Real -Time Market Settlements, and per ERCOT Protocols Section 9.5.6(2), ERCOT has determined the following results for each impacted Operating Day:
|
Operating Day
|
RTM
|
Qualifies for Resettlement
|
Market Participants meeting criteria
|
Maximum Dollar Impact
|
|
08/06/2025
|
Initial
|
Yes
|
1
|
$16,900
|
|
08/07/2025
|
Initial
|
Yes
|
1
|
$13,495
|
|
08/08/2025
|
Initial
|
Yes
|
1
|
$9,836
|
New Settlement Extracts with the corrected data will be posted for the resettled Operating Days as those days are resettled. A subsequent Market Notice will be posted for the DAM and RTM resettlements in accordance with ERCOT Protocols Sections 9.2.6 and 9.5.7. Please contact your ERCOT Account Manager with any questions about data specific to your entity.
CONTACT: If you have any questions, you may 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 ClientServices@ercot.com.
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