Public Notices

    This section contains public market notifications required by protocols as well as other market messages ERCOT may post for market transparency. Notices are categorized by types and can be filtered by selecting the desired category. ERCOT began archiving public notices November 3, 2011.

    Mar 2018 Apr 2018 May 2018 Jun 2018 Jul 2018 Aug 2018
    Date Message Type Status
    Aug 16 2018 12:48:45 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Aug 16 2018 12:44:37 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Aug 16 2018 08:46:59 CST The Daily RSASM for Thursday, August 16, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 16 2018 00:14:00 CST On 08/15/2018 a sudden loss of generation occurred at 18:10 totaling 485MW. Frequency declined to 59.860Hz. ERCOT load was 66, 846MW. Operational Information Active
    Aug 15 2018 18:14:25 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Aug 15 2018 18:10:49 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Aug 15 2018 17:13:26 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 15 2018 14:52:48 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 15 2018 08:47:18 CST The Daily RSASM for Wednesday, August 15, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 15 2018 00:13:04 CST No sudden loss of generation greater than 450 MW occurred on August 14, 2018 Operational Information Active
    Aug 14 2018 08:47:22 CST The Daily RSASM for Tuesday, August 14, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 14 2018 00:18:13 CST On 08/13/2018 a sudden loss of generation occurred at 23:00 totaling 1200MW. Frequency declined to 59.795Hz.ERCOT load was 47, 390MW. Operational Information Active
    Aug 13 2018 23:03:38 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Aug 13 2018 23:00:02 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Aug 13 2018 08:46:31 CST The Daily RSASM for Monday, August 13, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 13 2018 00:00:13 CST No sudden loss of generation greater than 450 MW occurred on August 12, 2018. Operational Information Active
    Aug 12 2018 08:47:46 CST The Daily RSASM for Sunday, August 12, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 12 2018 00:00:17 CST No sudden loss of generation greater than 450 MW occurred on August 11, 2018. Operational Information Active
    Aug 11 2018 08:46:38 CST The Daily RSASM for Saturday, August 11, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 11 2018 01:39:51 CST No sudden loss of generation greater than 450 MW occurred on August 10, 2018. Operational Information Active
    Aug 10 2018 08:48:01 CST The Daily RSASM for Friday, August 10, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 10 2018 04:37:41 CST ERCOT is working from the primary control center. Operational Information Active
    Aug 10 2018 01:56:56 CST No sudden loss of generation greater than 450 MW occurred on August 9, 2018. Operational Information Active
    Aug 09 2018 21:44:52 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 09 2018 15:14:11 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 09 2018 08:46:26 CST The Daily RSASM for Thursday, August 9, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 09 2018 02:14:13 CST No sudden loss of generation greater than 450 MW occurred on August 8, 2018. Operational Information Active
    Aug 08 2018 17:55:03 CST ERCOT has cancelled the following notice: ERCOT is issuing an OCN for 8/8/2018 for a projected Reserve Capacity Shortage for HE15 - HE18 Operational Information Cancelled
    Aug 08 2018 08:47:56 CST The Daily RSASM for Wednesday, August 8, 2018 will not be occurring due to zero participating QSEs Operational Information Active
    Aug 08 2018 03:44:48 CST ERCOT is issuing an OCN for 8/8/2018 for a projected Reserve Capacity Shortage for HE15 - HE18 Operational Information Active
    Aug 08 2018 01:54:52 CST No sudden loss of generation greater than 450 MW occurred on August 7, 2018. Operational Information Active
    Aug 07 2018 08:47:41 CST The Daily RSASM for Tuesday, August 7, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 07 2018 01:32:21 CST No sudden loss of generation greater than 450 MW occurred on August 6, 2018. Operational Information Active
    Aug 06 2018 08:47:16 CST The Daily RSASM for Monday, August 6, 2018 will not be occurring due to zero participating QSEs Operational Information Active
    Aug 06 2018 01:37:19 CST No sudden loss of generation greater than 450 MW occurred on August 5, 2018. Operational Information Active
    Aug 05 2018 08:49:33 CST The Daily RSASM for Sunday, August 5, 2018 will not be occurring due to zero participating QSEs Operational Information Active
    Aug 05 2018 00:47:58 CST No sudden loss of generation greater than 450 MW occurred on August 4, 2018. Operational Information Active
    Aug 04 2018 08:45:02 CST The Daily RSASM for Saturday, August 4, 2018 will not be occurring due to zero participating QSEs Operational Information Active
    Aug 04 2018 08:24:03 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Aug 04 2018 08:20:39 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Aug 04 2018 00:05:25 CST No sudden loss of generation greater than 450 MW occurred on August 3, 2018. Operational Information Active
    Aug 03 2018 08:45:21 CST The Daily RSASM for Friday, August 3, 2018 will not be occurring due to zero participating QSEs Operational Information Active
    Aug 03 2018 00:02:57 CST No sudden loss of generation greater than 450 MW occurred on August 2, 2018. Operational Information Active
    Aug 02 2018 19:10:47 CST ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage on 08/02/2018 for hours ending 15:00 through 19:00. ERCOT is requesting all QSE's to update their COPs. Operational Information Cancelled
    Aug 02 2018 17:14:51 CST Frequency Measurable Events: Report tracking Frequency Measurable Events (FMEs) as of Aug 02, 2018 is available. Operational Instruction Active
    Aug 02 2018 08:46:07 CST The Daily RSASM for Thursday, August 2, 2018 will not be occurring due to zero participating QSEs Operational Information Active
    Aug 02 2018 00:00:45 CST No sudden loss of generation greater than 450 MW occurred on August 1, 2018. Operational Information Active
    Aug 01 2018 21:59:22 CST ERCOT is issuing an OCN for a projected reserve capacity shortage on 08/02/2018 for hours ending 15:00 through 19:00. ERCOT is requesting all QSE's to update their COPs. Operational Information Active
    Aug 01 2018 21:47:37 CST ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 15:00 through 20:00. ERCOT is requesting all QSE's to update their COPs. OCN Cancelled
    Aug 01 2018 09:41:16 CST ERCOT will execute a SASM at 10:15 for operating day 08/01/2018 for HE 14-19 for REGUP 2 MWs. Operational Information Active
    Aug 01 2018 08:52:59 CST The Daily RSASM for Wednesday, August 1, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 01 2018 06:04:20 CST ERCOT has cancelled the following notice: Transmission Watch for the Railroad DC tie due to tie limitations that will result in schedule curtailments. Operational Information Cancelled
    Aug 01 2018 02:36:27 CST Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 15:00 through 20:00. ERCOT is requesting all QSE's to update their COPs. OCN Active
    Aug 01 2018 00:00:12 CST No sudden loss of generation greater than 450 MW occurred on July 31, 2018. Operational Information Active