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Operations Messages

This section contains important messages from the ERCOT Control Room. Refresh this screen to see current operation messages. 

Feb 2024 Mar 2024 Apr 2024 May 2024 Jun 2024 Jul 2024
Date & Time Notice Type Status
Jul 14, 2024 8:47:56 AM The Daily RSASM for 07/14/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 14, 2024 12:01:05 AM No sudden loss of generation greater than 450 MW occurred on July 13, 2024. Operational Information Active
Jul 13, 2024 8:57:21 AM The Daily RSASM for 07/13/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 13, 2024 12:00:48 AM No sudden loss of generation greater than 450 MW occurred on July 12, 2024. Operational Information Active
Jul 12, 2024 8:49:29 AM The Daily RSASM for 07/12/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 12, 2024 3:56:02 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
Jul 12, 2024 3:55:51 AM ERCOT will be working from the primary control center until further notice, use the OPX numbers for Taylor. Operational Information Active
Jul 12, 2024 12:02:47 AM No sudden loss of generation greater than 450 MW occurred on July 11, 2024. Operational Information Active
Jul 11, 2024 4:00:09 PM ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Active
Jul 11, 2024 8:49:54 AM The Daily RSASM for 07/11/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 11, 2024 12:10:42 AM No sudden loss of generation greater than 450 MW occurred on July 10, 2024. Operational Information Active
Jul 10, 2024 1:01:13 PM The DC_E (East) DC Tie will be unavailable from 07/17/2024 07:00 through 07/17/2024 11:00 due to a planned outage. Operational Information Active
Jul 10, 2024 8:52:42 AM The Daily RSASM for 07/10/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 10, 2024 12:02:26 AM No sudden loss of generation greater than 450 MW occurred on July 9, 2024. Operational Information Active
Jul 9, 2024 8:47:25 AM The Daily RSASM for 07/09/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 9, 2024 1:56:34 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [0140] for operating day 07/09/2024 for RRS for HE07 36.4MW, HE08 41.3MW, HE09 36.4MW. Operational Information Cancelled
Jul 9, 2024 1:04:23 AM ERCOT will execute a SASM at [0140] for operating day 07/09/2024 for RRS for HE07 36.4MW, HE08 41.3MW, HE09 36.4MW. Operational Information Active
Jul 9, 2024 12:09:07 AM No sudden loss of generation greater than 450 MW occurred on July 8, 2024. Operational Information Active
Jul 8, 2024 9:00:38 PM ERCOT has cancelled the following notice: At 12:00, ERCOT is issuing an OCN for Hurricane Beryl due to a possibility of making landfall or impacting the ERCOT Region on Sunday July 7, 2024. OCN Cancelled
Jul 8, 2024 9:00:30 PM ERCOT has cancelled the following notice: At 10:00, ERCOT is issuing an Advisory for Hurricane Beryl due to a possibility of making landfall or impacting the ERCOT Region on Sunday July 7, 2024. Advisory Cancelled
Jul 8, 2024 9:00:17 PM ERCOT has cancelled the following notice: At 12:00, ERCOT is issuing a Watch for Tropical Storm Beryl in the Gulf of Mexico which is expected to intensify into a Hurricane and have an adverse impact or make landfall within the ERCOT Region between Corpus Christi and Galveston on Sunday July 7, 2024. Watch Cancelled
Jul 8, 2024 9:00:06 PM ERCOT has cancelled the following notice: At 03:30, ERCOT is issuing an Emergency Notice due to Hurricane Beryl having an adverse impact on the ERCOT transmission system. Emergency Notice Cancelled
Jul 8, 2024 7:53:17 PM ERCOT has cancelled the following notice: The DC_E (East) DC Tie will be unavailable from 07/09/2024 08:00 through 07/09/2024 11:00 due to a planned outage. Operational Information Cancelled
Jul 8, 2024 4:08:48 PM ERCOT has been notified that the Laredo DC Tie has been derated to 70 MW Import/Export due to equipment issues until further notice. Operational Information Active
Jul 8, 2024 4:06:49 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from 07/06/2024 23:53 through 07/10/2024 16:00 due to a forced outage. Operational Information Cancelled
Jul 8, 2024 4:06:32 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) 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
Jul 8, 2024 4:05:59 PM ERCOT has cancelled the following notice: ERCOT has been notified that the Laredo DC Tie has been derated to 66 MW Import/Export due to equipment issues until further notice. Operational Information Cancelled
Jul 8, 2024 10:33:39 AM ERCOT has cancelled the following notice: ERCOT will be conducting as SASM as 0950 for 7/8/2024 for [ECRS]: HE [13 – 14, 16-19, 21-24] MW [50 MW all hours]. for [NONSPIN]: HE [14 and 24] MW [27 MW All Hours]. for [REGUP]: HE [12, 15, 17, 20, 21, 23] MW [6.8], [25], [44.10] , [80] , [6.3] , [37.5]. for [RRS]: HE [18, 19, 21, 22] MW [10], [40], [33.7] , [40]. Operational Information Cancelled
Jul 8, 2024 9:20:53 AM ERCOT will be conducting as SASM as 0950 for 7/8/2024 for [ECRS]: HE [13 – 14, 16-19, 21-24] MW [50 MW all hours]. for [NONSPIN]: HE [14 and 24] MW [27 MW All Hours]. for [REGUP]: HE [12, 15, 17, 20, 21, 23] MW [6.8], [25], [44.10] , [80] , [6.3] , [37.5]. for [RRS]: HE [18, 19, 21, 22] MW [10], [40], [33.7] , [40]. Operational Information Active
Jul 8, 2024 8:49:17 AM The Daily RSASM for 07/08/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 8, 2024 3:30:28 AM At 03:30, ERCOT is issuing an Emergency Notice due to Hurricane Beryl having an adverse impact on the ERCOT transmission system. Emergency Notice Active
Jul 8, 2024 12:28:20 AM No sudden loss of generation greater than 450 MW occurred on July 7, 2024. Operational Information Active
Jul 7, 2024 9:42:34 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from 07/06/2024 23:53 through 07/08/2024 16:00 due to a forced outage. Operational Information Cancelled
Jul 7, 2024 9:42:16 PM The DC_L (Laredo VFT) DC Tie will be unavailable from 07/06/2024 23:53 through 07/10/2024 16:00 due to a forced outage. Operational Information Active
Jul 7, 2024 3:56:07 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from 07/06/2024 23:53 through 07/07/2024 23:59 due to a forced outage. Operational Information Cancelled
Jul 7, 2024 3:55:45 PM The DC_L (Laredo VFT) DC Tie will be unavailable from 07/06/2024 23:53 through 07/08/2024 16:00 due to a forced outage. Operational Information Active
Jul 7, 2024 8:47:10 AM The Daily RSASM for 07/07/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 7, 2024 12:19:43 AM No sudden loss of generation greater than 450 MW occurred on July 6, 2024. Operational Information Active
Jul 6, 2024 11:54:30 PM The DC_L (Laredo VFT) DC Tie will be unavailable from 07/06/2024 23:53 through 07/07/2024 23:59 due to a forced outage. Operational Information Active
Jul 6, 2024 11:52:15 PM The DC_L (Laredo VFT) 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
Jul 6, 2024 12:02:17 PM At 12:00, ERCOT is issuing a Watch for Tropical Storm Beryl in the Gulf of Mexico which is expected to intensify into a Hurricane and have an adverse impact or make landfall within the ERCOT Region between Corpus Christi and Galveston on Sunday July 7, 2024. Watch Active
Jul 6, 2024 8:47:01 AM The Daily RSASM for 07/06/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 6, 2024 12:27:04 AM No sudden loss of generation greater than 450 MW occurred on July 5, 2024. Operational Information Active
Jul 5, 2024 10:01:07 AM At 10:00, ERCOT is issuing an Advisory for Hurricane Beryl due to a possibility of making landfall or impacting the ERCOT Region on Sunday July 7, 2024. Advisory Active
Jul 5, 2024 8:47:08 AM The Daily RSASM for 07/05/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 5, 2024 12:00:44 AM No sudden loss of generation greater than 450 MW occurred on July 4, 2024. Operational Information Active
Jul 4, 2024 8:47:14 AM The Daily RSASM for 07/04/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 4, 2024 12:01:23 AM No sudden loss of generation greater than 450 MW occurred on July 3, 2024. Operational Information Active
Jul 3, 2024 12:00:06 PM At 12:00, ERCOT is issuing an OCN for Hurricane Beryl due to a possibility of making landfall or impacting the ERCOT Region on Sunday July 7, 2024. OCN Active
Jul 3, 2024 8:51:33 AM The Daily RSASM for 07/03/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 3, 2024 1:20:16 AM No sudden loss of generation greater than 450 MW occurred on July 2, 2024. Operational Information Active
Jul 2, 2024 4:03:29 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from 06/25/2024 04:05 through 07/08/2024 16:00 due to a forced outage. Operational Information Cancelled
Jul 2, 2024 4:03:13 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) 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
Jul 2, 2024 11:05:19 AM The DC_E (East) DC Tie will be unavailable from 07/09/2024 08:00 through 07/09/2024 11:00 due to a planned outage. Operational Information Active
Jul 2, 2024 8:47:50 AM The Daily RSASM for 07/02/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 2, 2024 12:22:42 AM No sudden loss of generation greater than 450 MW occurred on July 1, 2024. Operational Information Active
Jul 1, 2024 8:53:17 AM The Daily RSASM for 07/01/2024 will not be occurring due to zero participating QSEs. Operational Information Active
Jul 1, 2024 12:03:04 AM No sudden loss of generation greater than 450 MW occurred on June 30, 2024. Operational Information Active