NOTICE DATE: March 7, 2024

NOTICE TYPE: M-A030724-01 General

SHORT DESCRIPTION: Dashboards affected by beginning of Daylight Saving Time (DST) March 10, 2024

INTENDED AUDIENCE: All Market Participants

DAYS AFFECTED: March 10, 2024

LONG DESCRIPTION: Some of ERCOT’s informational dashboards and displays on ERCOT.com will be affected by the beginning of Daylight Saving Time (DST) on Sunday, March 10, 2024.

• The System-Wide Prices dashboard line chart will present a distorted view due to the loss of the 2:00 a.m. hour on Sunday, March 10.
• The Real-Time Settlement Point Prices display will display a 0200 (2:00 a.m.) interval ending that should instead be labeled 0300 (3:00 a.m.). The associated data appearing on the incorrectly labeled 0200 line of the chart will be for the 0300 ending interval.

ACTION REQUIRED: Users should be aware of possible errors on these dashboards and displays on Sunday, March 10, 2024.

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 ClientServices@ercot.com.

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dg