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Public Notices

This section contains public market notifications required by protocols as well as other market messages ERCOT may post for market transparency. ERCOT began archiving public notices November 3, 2011.

May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025
Date & Time Notice Type Status
Oct 7, 2025 12:35:33 AM ERCOT has cancelled the following notice: ERCOT has declared a Watch due to the failure of the SCED process, starting at 00:02 Watch Cancelled
Oct 7, 2025 12:32:14 AM ERCOT Emergency Base Points are Disabled Operational Information Cancelled
Oct 7, 2025 12:09:54 AM ERCOT has declared a Watch due to the failure of the SCED process, starting at 00:02 Watch Active
Oct 7, 2025 12:02:22 AM ERCOT Emergency Base Points are Enabled Operational Information Active
Oct 7, 2025 12:00:56 AM No sudden loss of generation greater than 450 MW occurred on October 06, 2025. Operational Information Active
Oct 6, 2025 12:16:11 PM The DC_R (Railroad) DC Tie will be unavailable from 10/13/2025 07:30 through 10/24/2025 16:00 due to a planned outage. Operational Information Active
Oct 6, 2025 8:46:18 AM The Daily RSASM for 10/06/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 6, 2025 12:02:12 AM No sudden loss of generation greater than 450 MW occurred on October 05, 2025. Operational Information Active
Oct 5, 2025 8:46:06 AM The Daily RSASM for 10/05/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 5, 2025 12:03:45 AM No sudden loss of generation greater than 450 MW occurred on October 04, 2025. Operational Information Active
Oct 4, 2025 8:45:57 AM The Daily RSASM for 10/04/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 4, 2025 12:02:19 AM No sudden loss of generation greater than 450 MW occurred on October 03, 2025. Operational Information Active
Oct 3, 2025 8:46:24 AM The Daily RSASM for 10/03/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 3, 2025 12:08:21 AM No sudden loss of generation greater than 450 MW occurred on October 02, 2025. Operational Information Active
Oct 2, 2025 3:30:47 PM Frequency Measurable Events: Report tracking Frequency Measurable Events (FMEs) as of 10/02/2025 is available. Operational Instruction Active
Oct 2, 2025 11:22:47 AM At 3:30 PM on 10/02/2025, ERCOT will perform site failover of its Energy & Market Management Systems. During this time, market communications will be unavailable for about 20 minutes, and real-time communications will be unavailable for about 5 minutes. All systems should re-establish communications automatically. This event will be preceded by a "hot line" call shortly before beginning. Operational Information Active
Oct 2, 2025 8:46:09 AM The Daily RSASM for 10/02/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 2, 2025 7:01:01 AM ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Alert for a K-7 on 10/02/2025 at 00:59. Operational Information Cancelled
Oct 2, 2025 7:00:08 AM ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Warning of K-7 or Greater until 10/02/2025 at 07:00. Operational Information Cancelled
Oct 2, 2025 1:10:15 AM The Space Weather Prediction Center has issued a GMD Alert for a K-7 on 10/02/2025 at 00:59. Operational Information Active
Oct 2, 2025 12:25:14 AM No sudden loss of generation greater than 450 MW occurred on October 01, 2025. Operational Information Active
Oct 1, 2025 11:28:59 PM The Space Weather Prediction Center has issued a GMD Warning of K-7 or Greater until 10/02/2025 at 07:00. Operational Information Active
Oct 1, 2025 8:50:44 AM The Daily RSASM for 10/01/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 1, 2025 12:21:53 AM No sudden loss of generation greater than 450 MW occurred on September 30, 2025. Operational Information Active