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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.

Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025
Date & Time Notice Type Status
Aug 8, 2025 12:00:04 AM No sudden loss of generation greater than 450 MW occurred on August 7, 2025. Operational Information Active
Aug 7, 2025 2:11:38 PM DAM is complete. DRUC will begin at 1508. Operational Information Active
Aug 7, 2025 1:20:53 PM DAM Notice: ERCOT has postponed the deadline for the posting of the DAM solution for Operating Day 08/08/2025 due to long solution run time. Advisory Active
Aug 7, 2025 10:11:00 AM ERCOT has cancelled the following notice: ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Cancelled
Aug 7, 2025 9:54:12 AM Notification of Real-Time Market (RTM) prices under investigation. ERCOT is currently investigating Real-Time prices for SCED intervals 00:00 - 13:40 on OD 08/06/2025. Should a price correction be warranted, a follow-up Market Notice will be issued with more details. The deadline for correcting prices before they become final is 08/08/2025 at 4PM for OD 08/06/2025. Alert Active
Aug 7, 2025 8:49:09 AM At 3:30 PM on 8/07/2025, 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
Aug 7, 2025 8:46:43 AM The Daily RSASM for 08/07/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 7, 2025 12:57:24 AM No sudden loss of generation greater than 450 MW occurred on August 6, 2025. Operational Information Active
Aug 6, 2025 3:44:59 PM ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Active
Aug 6, 2025 8:46:32 AM The Daily RSASM for 08/06/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 6, 2025 12:00:12 AM On August 05, 2025, a sudden loss of generation occurred at 14:17 totaling 475 MW. Frequency declined to 59.953 Hz, ERCOT load was 79,017 MW. Operational Information Active
Aug 5, 2025 8:47:19 AM The Daily RSASM for 08/05/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 5, 2025 12:00:02 AM No sudden loss of generation greater than 450 MW occurred on August 4, 2025. Operational Information Active
Aug 4, 2025 8:47:09 AM The Daily RSASM for 08/04/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 4, 2025 12:02:57 AM No sudden loss of generation greater than 450 MW occurred on August 3, 2025. Operational Information Active
Aug 3, 2025 8:46:18 AM The Daily RSASM for 08/03/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 3, 2025 12:05:18 AM No sudden loss of generation greater than 450 MW occurred on August 2, 2025. Operational Information Active
Aug 2, 2025 8:46:33 AM The Daily RSASM for 08/02/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 2, 2025 12:04:00 AM On August 1, 2025, a sudden loss of generation occurred at 12:03 totaling 679 MW. Frequency declined to 59.954 Hz, ERCOT load was 73,946 MW. Operational Information Active
Aug 1, 2025 11:22:59 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 22:54 for operating day 08/02/25 this is for NSPIN HE02-13 98MW each hour. Operational Information Cancelled
Aug 1, 2025 10:30:15 PM ERCOT will execute a SASM at 22:54 for operating day 08/02/25 this is for NSPIN HE02-13 98MW each hour. Operational Information Active
Aug 1, 2025 6:31:11 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 17:56 for operating day 08/01/25 this is for ECRS HE21 10MW, HE24 49.5MW. REGUP HE22 21.70MW, HE23 4.5MW. NSPIN HE20 10.10MW. RRS HE22 28.3MW, HE23 45.10MW. Operational Information Cancelled
Aug 1, 2025 5:32:44 PM ERCOT will execute a SASM at 17:56 for operating day 08/01/25 this is for ECRS HE21 10MW, HE24 49.5MW. REGUP HE22 21.70MW, HE23 4.5MW. NSPIN HE20 10.10MW. RRS HE22 28.3MW, HE23 45.10MW. Operational Information Active
Aug 1, 2025 8:47:01 AM The Daily RSASM for 08/01/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 1, 2025 12:19:55 AM No sudden loss of generation greater than 450 MW occurred on July 31, 2025. Operational Information Active