NOTICE DATE: January 29, 2024

NOTICE TYPE: M-A012924-01Operations

SHORT DESCRIPTION: ERCOT MOTE will be open for DST testing

INTENDED AUDIENCE: QSE operations personnel

DAYS AFFECTED: February 05, 2024 through February 12, 2024

LONG DESCRIPTION: The ERCOT Market Operations Test Environment (MOTE) will be available for Market Participant Daylight Saving Time (DST) testing as listed in the table below. There is only one period for testing this year. The testing period will be from Monday through Friday and will follow the simulated times shown in the table.

Real-time	Simulated time	MOTE system
2/05/2024 2:00 PM	3/08/2024 2:00 AM	MOTE Servers Normal Time change to DST Time
2/05/2024 5:00 PM	3/08/2024 5:00 AM	Start testing QSE submissions for next 5 days including Short Day 03/10/2024
2/05/2024 10:00 PM	3/08/2024 10:00 AM	DAM close for Operating Day 03/09/2024
2/06/2024 10:00 PM	3/09/2024 10:00 AM	DAM close for Operating Day 03/10/2024 (Short DST Day)
2/07/2024 1:00 PM	3/10/2024 1:00 AM	CST Time
2/07/2024 2:00 PM	3/10/2024 3:00 AM	DST Transition Time
2/07/2024 9:00 PM	3/10/2024 10:00 AM	DAM close for Operating Day 03/11/2024
2/08/2024 9:00 PM	3/11/2024 10:00 AM	DAM close for Operating Day 03/12/2024
2/12/2024 10:00 AM	3/14/2024 11:00 PM	Close of Test and MOTE Servers DST Time Change to Normal Time

ADDITIONAL INFORMATION: For information regarding submissions, including DST requirements, please refer to the latest version of the EIP External Interface Specifications document for use of the External Web Services (EWS) found on the XSDs webpage. The most recent External Web Services XSD may also be found in the same location.

For MOTE testing, the URL for XML submissions is: https://testmisapi.ercot.com/2007-08/Nodal/eEDS/EWS/

The URL for UI submissions is: https://testmis.ercot.com/mmsui/mmsui/displayTradesLanding.action

The following are examples of how the Short DST Day March 10, 2024 will be labeled:

0100

0200

0400

0500

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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