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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.

Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025
Date & Time Notice Type Status
Jul 8, 2025 12:33:59 AM No sudden loss of generation greater than 450 MW occurred on July 7, 2025. Operational Information Active
Jul 7, 2025 8:46:47 AM The Daily RSASM for 07/07/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 7, 2025 1:14:43 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 00:15 for operating day 07/07/2025 for 1.5 MW ECRS HE 3-4, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15, 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, 1.7 MW ECRS HE 24, 4.9 MW NSPIN HE 3, 5 MW NSPIN HE 4-5, 4.9 MW NSPIN HE 6, 7.9 MW NSPIN HE 7, 7.7 MW NSPIN HE 8, 7.2 MW NSPIN HE 9, 6.7 MW NSPIN HE 10, 6.1 MW NSPIN HE 11, 5.7 MW NSPIN HE 12, 5 MW NSPIN HE 13, 4.8 MW NSPIN HE 14, 3.3 MW NSPIN HE 15-16, 3.4 MW NSPIN HE 17-18, 3.6 MW NSPIN HE 19, 3.7 MW NSPIN HE 20, 3.9 MW NSPIN HE 21, 4 MW NSPIN HE 21, Operational Information Cancelled
Jul 7, 2025 1:14:41 AM ERCOT has cancelled the following notice: 3.4 MW NSPIN HE 23, 3.7 MW NSPIN HE 24, 4.7 MW RRS HE 3, 4.8 MW RRS HE 4-6, 4.7 MW RRS HE 7, 4.6 MW RRS HE 8, 4.3 MW RRS HE 9, 4 MW RRS HE 10, 3.6 MW RRS HE 11, 3.4 MW RRS HE 12, 3.3 MW RRS HE 13, 3.1 MW RRS HE 14, 3 MW RRS HE 15, 3.1 MW RRS HE 17-19, 3.2 MW RRS HE 20, 3.4 MW RRS HE 21, 3.5 MW RRS HE 22, 3.9 MW RRS HE 23, and 4.2 MW RRS HE 24. Operational Information Cancelled
Jul 7, 2025 1:06:37 AM ERCOT will execute a SASM at 00:15 for operating day 07/07/2025 for 1.5 MW ECRS HE 3-4, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15, 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, 1.7 MW ECRS HE 24, 4.9 MW NSPIN HE 3, 5 MW NSPIN HE 4-5, 4.9 MW NSPIN HE 6, 7.9 MW NSPIN HE 7, 7.7 MW NSPIN HE 8, 7.2 MW NSPIN HE 9, 6.7 MW NSPIN HE 10, 6.1 MW NSPIN HE 11, 5.7 MW NSPIN HE 12, 5 MW NSPIN HE 13, 4.8 MW NSPIN HE 14, 3.3 MW NSPIN HE 15-16, 3.4 MW NSPIN HE 17-18, 3.6 MW NSPIN HE 19, 3.7 MW NSPIN HE 20, 3.9 MW NSPIN HE 21, 4 MW NSPIN HE 21, Operational Information Active
Jul 7, 2025 1:06:02 AM 3.4 MW NSPIN HE 23, 3.7 MW NSPIN HE 24, 4.7 MW RRS HE 3, 4.8 MW RRS HE 4-6, 4.7 MW RRS HE 7, 4.6 MW RRS HE 8, 4.3 MW RRS HE 9, 4 MW RRS HE 10, 3.6 MW RRS HE 11, 3.4 MW RRS HE 12, 3.3 MW RRS HE 13, 3.1 MW RRS HE 14, 3 MW RRS HE 15, 3.1 MW RRS HE 17-19, 3.2 MW RRS HE 20, 3.4 MW RRS HE 21, 3.5 MW RRS HE 22, 3.9 MW RRS HE 23, and 4.2 MW RRS HE 24. Operational Information Active
Jul 7, 2025 1:05:32 AM ERCOT has cancelled the following notice: 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, and 1.7 MW ECRS HE 24. Operational Information Cancelled
Jul 7, 2025 1:05:29 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 00:15 for operating day 07/07/2025 for 1.5 MW ECRS HE 3-4, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15, 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, 1.7 MW ECRS HE 24, 4.9 MW NSPIN HE 3, 5 MW NSPIN HE 4-5, 4.9 MW NSPIN HE 6, 7.9 MW NSPIN HE 7, 7.7 MW NSPIN HE 8, 7.2 MW NSPIN HE 9, 6.7 MW NSPIN HE 10, 6.1 MW NSPIN HE 11, 5.7 MW NSPIN HE 12, 5 MW NSPIN HE 13, 4.8 MW NSPIN HE 14, 3.3 MW NSPIN HE 15-16, 3.4 MW NSPIN HE 17-18, 3.6 MW NSPIN HE 19, 3.7 MW NSPIN HE 20, 3.9 MW NSPIN HE 21, 4 MW NSPIN HE 21, 3.4 MW NSPIN HE 23, 3.7 MW NSPIN HE 24, 1.5 MW ECRS HE 03-04, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15 Operational Information Cancelled
Jul 7, 2025 12:37:23 AM 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, and 1.7 MW ECRS HE 24. Operational Information Active
Jul 7, 2025 12:36:58 AM ERCOT will execute a SASM at 00:15 for operating day 07/07/2025 for 1.5 MW ECRS HE 3-4, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15, 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, 1.7 MW ECRS HE 24, 4.9 MW NSPIN HE 3, 5 MW NSPIN HE 4-5, 4.9 MW NSPIN HE 6, 7.9 MW NSPIN HE 7, 7.7 MW NSPIN HE 8, 7.2 MW NSPIN HE 9, 6.7 MW NSPIN HE 10, 6.1 MW NSPIN HE 11, 5.7 MW NSPIN HE 12, 5 MW NSPIN HE 13, 4.8 MW NSPIN HE 14, 3.3 MW NSPIN HE 15-16, 3.4 MW NSPIN HE 17-18, 3.6 MW NSPIN HE 19, 3.7 MW NSPIN HE 20, 3.9 MW NSPIN HE 21, 4 MW NSPIN HE 21, 3.4 MW NSPIN HE 23, 3.7 MW NSPIN HE 24, 1.5 MW ECRS HE 03-04, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15 Operational Information Active
Jul 7, 2025 12:00:13 AM On 07/06/2025, a sudden loss of generation occurred at 04:28 totaling 550 MW. Frequency declined to 59.958 Hz, ERCOT load was 48,100 MW. Operational Information Active
Jul 6, 2025 2:09:08 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 13:35 for operating day 07/06/25 this is for ECRS HE16 35.2MW HE17 32.2MW NONSPIN HE16 79MW HE17 71.3MW. Operational Information Cancelled
Jul 6, 2025 1:08:52 PM ERCOT will execute a SASM at 13:35 for operating day 07/06/25 this is for ECRS HE16 35.2MW HE17 32.2MW NONSPIN HE16 79MW HE17 71.3MW. Operational Information Active
Jul 6, 2025 8:46:45 AM The Daily RSASM for 07/06/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 6, 2025 12:00:09 AM No sudden loss of generation greater than 450 MW occurred on July 5, 2025. Operational Information Active
Jul 5, 2025 8:47:16 AM The Daily RSASM for 07/05/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 5, 2025 12:05:44 AM No sudden loss of generation greater than 450 MW occurred on July 4, 2025. Operational Information Active
Jul 4, 2025 8:46:49 AM The Daily RSASM for 07/04/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 4, 2025 12:15:56 AM No sudden loss of generation greater than 450 MW occurred on July 3, 2025. Operational Information Active
Jul 3, 2025 7:01:46 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 18:50 for operating day 07/03/25 for HE 21-23 for 9.9 MW NSPIN Operational Information Cancelled
Jul 3, 2025 6:15:39 PM ERCOT will execute a SASM at 18:50 for operating day 07/03/25 for HE 21-23 for 9.9 MW NSPIN Operational Information Active
Jul 3, 2025 8:47:46 AM The Daily RSASM for 07/03/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 3, 2025 12:06:49 AM No sudden loss of generation greater than 450 MW occurred on July 2, 2025. Operational Information Active
Jul 2, 2025 8:46:32 AM The Daily RSASM for 07/02/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 2, 2025 12:48:43 AM No sudden loss of generation greater than 450 MW occurred on July 1, 2025. Operational Information Active
Jul 1, 2025 8:46:24 AM The Daily RSASM for 07/01/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 1, 2025 12:03:43 AM On 06/30/2024, a sudden loss of generation occurred at 18:33 totaling 619 MW. Frequency declined to 59.955Hz, ERCOT load was 72,832 MW. Another sudden loss of generation occurred at 21:33 totaling 608 MW. Frequency declined to 59.950 Hz, ERCOT load was 66,136 MW Operational Information Active