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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. Notices are categorized by types and can be filtered by selecting the desired category. ERCOT began archiving public notices November 3, 2011.

Jun 2022 Jul 2022 Aug 2022 Sep 2022 Oct 2022 Nov 2022
Date & Time Notice Type Status
Nov 28, 2022 4:25:10 PM ERCOT has cancelled the following notice: Advisory issued due to ERCOTs Voltage Security Assessment Tool is currently unavailable. Advisory Cancelled
Nov 28, 2022 3:57:47 PM Advisory issued due to ERCOTs Voltage Security Assessment Tool is currently unavailable. Advisory Active
Nov 28, 2022 8:46:25 AM The Daily RSASM for Monday, November 28, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 28, 2022 12:10:11 AM No sudden loss of generation greater than 450 MW occurred on November 27, 2022. Operational Information Active
Nov 27, 2022 8:47:56 AM The Daily RSASM for Sunday, November 27, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 27, 2022 12:18:51 AM No sudden loss of generation greater than 450 MW occurred on November 26, 2022. Operational Information Active
Nov 26, 2022 6:12:33 PM At 18:11, All Non-Spin has been recalled. Operational Information Active
Nov 26, 2022 6:11:50 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2022-11-26 18:11:50, END_TIME: 2022-11-26 18:11:50, DURATION: 0 Hrs 0 Mins.; Market Message
Nov 26, 2022 5:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 3236.0, BEGIN_TIME: 2022-11-26 18:00:00, END_TIME: 2022-11-26 23:59:00, DURATION: 5 Hrs 59 Mins.; Market Message
Nov 26, 2022 4:46:59 PM At 16:45 approximately 4100 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Nov 26, 2022 4:45:25 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 4110.0, BEGIN_TIME: 2022-11-26 16:45:25, END_TIME: 2022-11-26 23:59:00, DURATION: 7 Hrs 13 Mins.; Market Message
Nov 26, 2022 11:10:22 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [10:45] for operating day [11/26/22] for HE [13-16] for [REGUP] 10MW and [REGDN] 10 MW and for HE [17-18] for [REGUP] 60 MW. Operational Information Cancelled
Nov 26, 2022 10:17:36 AM ERCOT will execute a SASM at [10:45] for operating day [11/26/22] for HE [13-16] for [REGUP] 10MW and [REGDN] 10 MW and for HE [17-18] for [REGUP] 60 MW. Operational Information Active
Nov 26, 2022 8:48:03 AM The Daily RSASM for Saturday, November 26, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 26, 2022 12:34:05 AM No sudden loss of generation greater than 450 MW occurred on November 25, 2022. Operational Information Active
Nov 25, 2022 8:47:13 AM The Daily RSASM for Friday, November 25, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 25, 2022 12:04:15 AM No sudden loss of generation greater than 450 MW occurred on November 24, 2022. Operational Information Active
Nov 24, 2022 8:47:30 AM The Daily RSASM for Thursday, November 24, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 24, 2022 12:02:25 AM No sudden loss of generation greater than 450 MW occurred on November 23, 2022. Operational Information Active
Nov 23, 2022 8:49:51 AM The Daily RSASM for Wednesday, November 23, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 23, 2022 12:02:09 AM No sudden loss of generation greater than 450 MW occurred on November 22, 2022. Operational Information Active
Nov 22, 2022 8:47:49 AM The Daily RSASM for Tuesday, November 22, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 22, 2022 12:06:08 AM No sudden loss of generation greater than 450 MW occurred on November 21, 2022. Operational Information Active
Nov 21, 2022 8:47:43 AM The Daily RSASM for Monday, November 21, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 21, 2022 12:18:04 AM No sudden loss of generation greater than 450 MW occurred on November 20, 2022. Operational Information Active
Nov 20, 2022 11:30:16 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [23:10] for operating day [11/21/22] for HE [06] for [RRS] MW [14]”. Operational Information Cancelled
Nov 20, 2022 10:38:03 PM ERCOT will execute a SASM at [23:10] for operating day [11/21/22] for HE [06] for [RRS] MW [14]”. Operational Information Active
Nov 20, 2022 8:48:07 AM The Daily RSASM for Sunday, November 20, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 19, 2022 11:56:01 PM No sudden loss of generation greater than 450 MW occurred on November 19, 2022. Operational Information Active
Nov 19, 2022 7:31:42 PM The minimum monthly Ancillary Services quantities have been posted to the ERCOT Website; Data Products; Grid; Forecasts under the Projected Ancillary Service Requirements link located under the Reports & Extracts heading. The posted quantities reflect minimum requirements only. ERCOT will follow-up with a Notification if any upward adjustments to these minimum quantities are made. https://mis.ercot.com/secure/data-products/grid/forecasts AS Postings Active
Nov 19, 2022 8:48:48 AM The Daily RSASM for Saturday, November 19, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 19, 2022 12:33:00 AM No sudden loss of generation greater than 450 MW occurred on November 18, 2022. Operational Information Active
Nov 18, 2022 11:39:38 AM ERCOT has cancelled the following notice: The DC_N (North) DC Tie will be unavailable from 11/16/2022 20:40 through 11/18/2022 23:59 due to a planned outage. Operational Information Cancelled
Nov 18, 2022 11:39:10 AM The DC_N (North) DC Tie will be unavailable from 11/16/2022 20:40 through 11/30/2022 16:00 due to a forced outage. Operational Information Active
Nov 18, 2022 8:55:15 AM The Daily RSASM for Friday, November 18, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 18, 2022 12:25:10 AM No sudden loss of generation greater than 450 MW occurred on November 17, 2022. Operational Information Active
Nov 17, 2022 11:19:34 PM The DC_N (North) DC Tie will be unavailable from 11/16/2022 20:40 through 11/18/2022 23:59 due to a planned outage. Operational Information Active
Nov 17, 2022 11:18:23 PM ERCOT has cancelled the following notice: The DC_N (North) DC Tie will be unavailable from 11/16/2022 20:40 through 11/17/2022 23:59 due to a forced outage. Operational Information Cancelled
Nov 17, 2022 8:49:33 AM The Daily RSASM for Thursday, November 17, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 17, 2022 12:11:45 AM On 11/16/2022, a sudden loss of generation occurred at 13:15 totaling 630 MW. Frequency declined to 59.926 Hz, ERCOT load was 44,516 MW. Operational Information Active
Nov 16, 2022 8:41:15 PM The DC_N (North) DC Tie will be unavailable from 11/16/2022 20:40 through 11/17/2022 23:59 due to a forced outage. Operational Information Active
Nov 16, 2022 8:46:37 AM The Daily RSASM for Wednesday, November 16, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 16, 2022 12:30:52 AM No sudden loss of generation greater than 450 MW occurred on November 15, 2022. Operational Information Active
Nov 15, 2022 8:47:05 AM The Daily RSASM for Tuesday, November 15, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 15, 2022 1:09:39 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 00:40 for operating day 11/15/2022 for HE03-10 for 38 MW RRSPFR. Operational Information Cancelled
Nov 15, 2022 12:09:43 AM ERCOT will execute a SASM at 00:40 for operating day 11/15/2022 for HE03-10 for 38 MW RRSPFR. Operational Information Active
Nov 15, 2022 12:06:36 AM No sudden loss of generation greater than 450 MW occurred on November 14, 2022. Operational Information Active
Nov 14, 2022 8:47:30 AM The Daily RSASM for Monday, November 14, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 14, 2022 12:34:41 AM No sudden loss of generation greater than 450 MW occurred on November 13, 2022. Operational Information Active
Nov 13, 2022 8:53:56 AM The Daily RSASM for Sunday, November 13, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 13, 2022 8:49:29 AM No sudden loss of generation greater than 450 MW occurred on November 12, 2022. Operational Information Active
Nov 13, 2022 8:49:07 AM ERCOT has cancelled the following notice: No sudden loss of generation greater than 450 MW occurred on November 13, 2022. Operational Information Cancelled
Nov 13, 2022 12:18:07 AM No sudden loss of generation greater than 450 MW occurred on November 13, 2022. Operational Information Active
Nov 12, 2022 2:47:36 PM ERCOT has cancelled the following notice: The DC_R (Railroad) DC Tie will be unavailable from 11/11/2022 19:01 through 11/12/2022 16:00 due to a forced outage. Operational Information Cancelled
Nov 12, 2022 8:48:36 AM The Daily RSASM for Saturday, November 12, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 12, 2022 8:48:13 AM ERCOT has cancelled the following notice: The Daily RSASM for Friday, November 11, 2022 will not be occurring due to zero participating QSEs. Operational Information Cancelled
Nov 12, 2022 12:06:23 AM No sudden loss of generation greater than 450 MW occurred on November 11, 2022. Operational Information Active
Nov 11, 2022 4:37:16 PM The DC_R (Railroad) DC Tie will be unavailable from 11/11/2022 19:01 through 11/12/2022 16:00 due to a forced outage. Operational Information Active
Nov 11, 2022 2:02:27 PM ERCOT has cancelled the following notice: The DC_R (Railroad) DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage DC Tie Curtailment Notice Cancelled
Nov 11, 2022 2:02:17 PM ERCOT has cancelled the following notice: The DC_R (Railroad) DC Tie will be unavailable from 11/11/2022 13:12 through 11/11/2022 23:59 due to a forced outage. Operational Information Cancelled
Nov 11, 2022 1:23:53 PM The Daily RSASM for Friday, November 11, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 11, 2022 1:23:15 PM ERCOT has cancelled the following notice: The Daily RSASM for Thursday, November 10, 2022 will not be occurring due to zero participating QSEs. Operational Information Cancelled
Nov 11, 2022 1:17:32 PM The DC_R (Railroad) DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage DC Tie Curtailment Notice Active
Nov 11, 2022 1:16:55 PM The DC_R (Railroad) DC Tie will be unavailable from 11/11/2022 13:12 through 11/11/2022 23:59 due to a forced outage. Operational Information Active
Nov 11, 2022 12:24:37 AM No sudden loss of generation greater than 450 MW occurred on November 10, 2022. Operational Information Active
Nov 10, 2022 11:00:30 PM ERCOT has cancelled the following notice: At 14:00, ERCOT issued an AAN due to a possible future Emergency Condition of reserve capacity deficiency beginning November 10, 2022 HE 1700 - HE 2000. ERCOT may Delay/Withdraw Approved or Accepted Resource Outages. ERCOT may seek 4,270 MW from an OAE and then make the OSA. On November 10, 2022 at 14:00 ERCOT will execute an OAE if deemed necessary. OCN Cancelled
Nov 10, 2022 9:17:01 AM The Daily RSASM for Thursday, November 10, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 10, 2022 4:09:57 AM ERCOT will be working from the primary control center until further notice, use the OPX numbers for Taylor. Operational Information Active
Nov 10, 2022 4:09:01 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
Nov 10, 2022 12:35:34 AM No sudden loss of generation greater than 450 MW occurred on November 9, 2022. Operational Information Active
Nov 9, 2022 4:00:14 PM ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Active
Nov 9, 2022 2:00:05 PM At 14:00, ERCOT issued an AAN due to a possible future Emergency Condition of reserve capacity deficiency beginning November 10, 2022 HE 1700 - HE 2000. ERCOT may Delay/Withdraw Approved or Accepted Resource Outages. ERCOT may seek 4,270 MW from an OAE and then make the OSA. On November 10, 2022 at 14:00 ERCOT will execute an OAE if deemed necessary. OCN Active
Nov 9, 2022 8:49:01 AM The Daily RSASM for Wednesday, November 9, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 9, 2022 12:12:48 AM No sudden loss of generation greater than 450 MW occurred on November 8, 2022. Operational Information Active
Nov 8, 2022 11:49:35 AM ERCOT has cancelled the following notice: The DC_E (East) DC Tie will be unavailable from 11/07/2022 20:00 through 11/08/2022 15:00 due to a planned outage. Operational Information Cancelled
Nov 8, 2022 9:29:46 AM CORRECTION Cancelled RUC commitment for November 8, 2022 at 08:12 QLUM SCSES Unit 2 due to unintended commitment Operational Information Active
Nov 8, 2022 8:49:08 AM The Daily RSASM for Tuesday, November 8, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 8, 2022 8:41:41 AM Cancelled RUC commitment at November 9, 2022 at 08:12 QLUM SCSES Unit 2 due to unintended commitment Operational Information Active
Nov 8, 2022 1:42:21 AM No sudden loss of generation greater than 450 MW occurred on November 7, 2022. Operational Information Active
Nov 7, 2022 3:43:40 PM ERCOT Emergency Base Points are Disabled Operational Information Cancelled
Nov 7, 2022 3:42:28 PM ERCOT Emergency Base Points are Enabled Operational Information Active
Nov 7, 2022 10:48:01 AM ERCOT has cancelled the following notice: The DC_E (East) DC Tie will be unavailable from 11/07/2022 13:00 through 11/08/2022 15:00 due to a planned outage. Operational Information Cancelled
Nov 7, 2022 10:47:45 AM The DC_E (East) DC Tie will be unavailable from 11/07/2022 20:00 through 11/08/2022 15:00 due to a planned outage. Operational Information Active
Nov 7, 2022 10:33:13 AM At 3:25 PM on 11/07/2022, 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
Nov 7, 2022 8:49:21 AM The Daily RSASM for Monday, November 7, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Nov 7, 2022 12:03:50 AM No sudden loss of generation greater than 450 MW occurred on November 6, 2022. Operational Information Active
Nov 6, 2022 8:45:49 AM The Daily RSASM for Sunday November 6, 2022 will not be occurring due to zero participating QSE’s Operational Information Active
Nov 6, 2022 12:04:19 AM No sudden loss of generation greater than 450 MW occurred on November 5, 2022. Operational Information Active
Nov 5, 2022 5:22:54 PM ERCOT has cancelled the following notice: ERCOT is taking manual actions for an unsolved contingency Operational Information Cancelled
Nov 5, 2022 8:47:33 AM The Daily RSASM for Saturday November 5, 2022 will not be occurring due to zero participating QSE’s Operational Information Active
Nov 5, 2022 12:34:29 AM No sudden loss of generation greater than 450 MW occurred on November 4, 2022. Operational Information Active
Nov 5, 2022 12:11:58 AM ERCOT has cancelled the following notice: The DC_E (East) DC Tie will be unavailable from 11/04/2022 21:01 through 11/05/2022 06:00 due to a forced outage. Operational Information Cancelled
Nov 4, 2022 9:22:16 PM The DC_E (East) DC Tie will be unavailable from 11/04/2022 21:01 through 11/05/2022 06:00 due to a forced outage. Operational Information Active
Nov 4, 2022 5:46:38 PM ERCOT is taking manual actions for an unsolved contingency Operational Information Active
Nov 4, 2022 4:30:53 PM The DC_E (East) DC Tie will be unavailable from 11/07/2022 13:00 through 11/08/2022 15:00 due to a planned outage. Operational Information Active
Nov 4, 2022 12:00:09 AM No sudden loss of generation greater than 450 MW occurred on November 3, 2022. Operational Information Active
Nov 3, 2022 11:06:51 AM ERCOT has cancelled the following notice: The DC_R (Railroad) DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage DC Tie Curtailment Notice Cancelled
Nov 3, 2022 11:06:42 AM ERCOT has cancelled the following notice: The DC_R (Railroad) DC Tie will be unavailable from 09/26/2022 06:00 through 11/03/2022 12:00 due to a planned outage. Operational Information Cancelled
Nov 3, 2022 10:51:56 AM ERCOT has cancelled the following notice: ERCOT is issuing an OCN for the WESTEX IROL due to taking manual action for a topology change. Operational Information Cancelled
Nov 3, 2022 8:03:20 AM ERCOT has cancelled the following notice: The DC_N (North) DC Tie will be unavailable through 11/03/2022 09:00 due to a forced outage. Operational Information Cancelled
Nov 3, 2022 7:22:29 AM ERCOT has cancelled the following notice: The DC_N (North) DC Tie will be unavailable from 11/03/2022 00:00 through 11/03/2022 07:00 due to a forced outage. Operational Information Cancelled
Nov 3, 2022 7:02:08 AM The DC_N (North) DC Tie will be unavailable through 11/03/2022 09:00 due to a forced outage. Operational Information Active
Nov 3, 2022 12:20:23 AM The DC_N (North) DC Tie will be unavailable from 11/03/2022 00:00 through 11/03/2022 07:00 due to a forced outage. Operational Information Active
Nov 3, 2022 12:02:04 AM No sudden loss of generation greater than 450 MW occurred on November 2, 2022. Operational Information Active
Nov 2, 2022 12:08:59 PM The DC_R (Railroad) DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage DC Tie Curtailment Notice Active
Nov 2, 2022 12:03:35 PM The DC_R (Railroad) DC Tie will be unavailable from 09/26/2022 06:00 through 11/03/2022 12:00 due to a planned outage. Operational Information Active
Nov 2, 2022 12:02:19 PM ERCOT has cancelled the following notice: The DC_R (Railroad) DC Tie will be unavailable from 09/26/2022 06:00 through 11/02/2022 12:00 due to a planned outage. Operational Information Cancelled
Nov 2, 2022 8:51:04 AM The Daily RSASM for Wednesday November 2, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Nov 2, 2022 12:06:50 AM No sudden loss of generation greater than 450 MW occurred on November 1, 2022. Operational Information Active
Nov 1, 2022 2:05:38 PM ERCOT is issuing an OCN for the WESTEX IROL due to taking manual action for a topology change. Operational Information Active
Nov 1, 2022 8:50:38 AM The Daily RSASM for Tuesday November 1, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Nov 1, 2022 12:37:11 AM ERCOT has cancelled the following notice: The DC_E (East) DC Tie will be unavailable from 10/31/2022 23:12 through 11/01/2022 23:59 due to a forced outage. Operational Information Cancelled
Nov 1, 2022 12:12:01 AM No sudden loss of generation greater than 450 MW occurred on October 31, 2022. Operational Information Active