Operations Messages
This section contains important messages from the ERCOT Control Room. Refresh this screen to see current operation messages. (Subscribe to Operations Messages 
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| Date | Message | Type | Status |
|---|---|---|---|
| Feb 28 2021 16:02:31 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 28 2021 16:01:32 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop | Operational Information | Active |
| Feb 28 2021 16:01:30 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop | Operational Information | Active |
| Feb 28 2021 08:47:21 CST | The Daily RSASM for Sunday, February 28, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 28 2021 04:04:45 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 28 2021 04:04:21 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Feb 28 2021 00:28:15 CST | No sudden loss of generation greater than 450 MW occurred on February 27, 2021 | Operational Information | Active |
| Feb 27 2021 20:29:20 CST | DAM is complete 17:53 | Operational Information | Active |
| Feb 27 2021 18:24:20 CST | ERCOT has cancelled the following notice: Watch due to DRUC not completing by 1800 due to DAM time line deviation | Operational Information | Cancelled |
| Feb 27 2021 17:36:16 CST | Watch due to DRUC not completing by 1800 due to DAM time line deviation | Operational Information | Active |
| Feb 27 2021 16:02:39 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 27 2021 16:02:19 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 27 2021 13:26:42 CST | ERCOT has postponed the deadline for the posting of the DAM Solution for Operating Day FEBRUARY 28, 2021 due to price validation. | Advisory | Active |
| Feb 27 2021 08:47:01 CST | The Daily RSASM for Saturday, February 27, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 27 2021 04:03:26 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 27 2021 04:03:11 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop | Operational Information | Cancelled |
| Feb 27 2021 00:06:28 CST | No sudden loss of generation greater than 450 MW occurred on February 26, 2021 | Operational Information | Active |
| Feb 26 2021 18:34:25 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 17:50 for operating day 02/26/21 for HE 20-24 for 10 MW RRS 6 MW of Reg down. | Operational Information | Cancelled |
| Feb 26 2021 17:14:06 CST | ERCOT will execute a SASM at 17:50 for operating day 02/26/21 for HE 20-24 for 10 MW RRS 6 MW of Reg down. | Operational Information | Active |
| Feb 26 2021 16:22:28 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop | Operational Information | Active |
| Feb 26 2021 16:22:12 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 26 2021 16:22:06 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 26 2021 16:14:19 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 26 2021 08:48:54 CST | The Daily RSASM for Friday, February 26, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 26 2021 04:01:24 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 26 2021 00:06:06 CST | No sudden loss of generation greater than 450 MW occurred on February 25, 2021 | Operational Information | Active |
| Feb 25 2021 15:59:14 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 15:45 for operating day 02/25/21 for HE18-19 for 17.8 MW RRS. | Operational Information | Cancelled |
| Feb 25 2021 15:56:24 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 25 2021 15:55:58 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 25 2021 15:25:07 CST | ERCOT will execute a SASM at 15:45 for operating day 02/25/21 for HE18-19 for 17.8 MW RRS. | Operational Information | Active |
| Feb 25 2021 12:56:36 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 12:40 for operating day 02/25/21 for HE15-16 for 12.8 MW RRS. | Operational Information | Cancelled |
| Feb 25 2021 12:11:29 CST | ERCOT will execute a SASM at 12:40 for operating day 02/25/21 for HE15-16 for 12.8 MW RRS. | Operational Information | Active |
| Feb 25 2021 08:47:03 CST | The Daily RSASM for Thursday, February 25, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 25 2021 04:09:57 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 25 2021 03:52:04 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 03:10 for operating day 02/25/2021 for HE06-07 for 22.6 MW RRS. | Operational Information | Cancelled |
| Feb 25 2021 02:28:43 CST | ERCOT will execute a SASM at 03:10 for operating day 02/25/2021 for HE06-07 for 22.6 MW RRS. | Operational Information | Active |
| Feb 25 2021 00:23:05 CST | No sudden loss of generation greater than 450 MW occurred on February 24, 2021 | Operational Information | Active |
| Feb 24 2021 15:56:32 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 24 2021 15:56:08 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 24 2021 08:47:47 CST | The Daily RSASM for Wednesday, February 24, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 24 2021 04:13:40 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 24 2021 04:12:14 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Feb 24 2021 00:34:12 CST | No sudden loss of generation greater than 450 MW occurred on February 23, 2021 | Operational Information | Active |
| Feb 23 2021 15:53:01 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 23 2021 15:52:48 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 23 2021 10:51:35 CST | No sudden loss of generation greater than 450 MW occurred on February 16, 2021. | Operational Information | Active |
| Feb 23 2021 10:48:59 CST | Update for loss of generation on February 15, 2021.On February 15, 2021, a sudden loss of generation occurred at 01:54 totaling 528 MW. Frequency declined to 59.306 Hz, ERCOT load was 61, 788 MW. Another sudden loss of generation occurred at 01:57 totaling 924 MW. Frequency declined to 59.600 Hz, ERCOT load was 60, 035 MW. Another sudden loss of generation occurred at 05:27 totaling 1389 MW. Frequency declined to 59.775 Hz, ERCOT load was 52, 458 MW. | Operational Information | Active |
| Feb 23 2021 08:49:14 CST | The Daily RSASM for Tuesday, February 23, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 23 2021 04:04:54 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 23 2021 04:00:38 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Feb 23 2021 00:00:14 CST | On 02/22/2021, a sudden loss of generation occurred at 05:38 totaling 718MW. Frequency declined to 59.885Hz. Ercot load was 35, 599MW. | Operational Information | Active |
| Feb 22 2021 15:59:26 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 22 2021 15:59:16 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 22 2021 08:49:48 CST | The Daily RSASM for Monday, February 22, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 22 2021 05:41:55 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 22 2021 05:38:55 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 22 2021 04:19:12 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 22 2021 04:18:52 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Feb 22 2021 00:01:11 CST | No sudden loss of generation greater than 450 MW occurred on February 21, 2021 | Operational Information | Active |
| Feb 21 2021 22:27:59 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 22:00 for operating day 02/22/21 for HE15-17 for 1.1 MW NSPIN, HE19 for 1.2 MW NSPIN, HE20-22 for 1.1 MW NSPIN, HE1 for 2.1 MW RRS, HE2 for 2.2 MW RRS, HE3 for 2.1 MW RRS, HE4 for 2 MW RRS, HE5 for 1.9 MW RRS, HE6 for 1.8 MW RRS, HE7-9 for 1.5 MW RRS, HE10 for 1.6 MW RRS, HE11-12 for 1.7 MW RRS, HE13 for 1.8 MW RRS, HE14-15 for 1.9 MW RRS, HE16-17 for 2 MW RRS, HE18 for 1.9 MW RRS, HE19-22 for 1.8 MW RRS, HE23-24 for 2 MW RRS. | Operational Information | Cancelled |
| Feb 21 2021 21:23:58 CST | ERCOT will execute a SASM at 22:00 for operating day 02/22/21 for HE15-17 for 1.1 MW NSPIN, HE19 for 1.2 MW NSPIN, HE20-22 for 1.1 MW NSPIN, HE1 for 2.1 MW RRS, HE2 for 2.2 MW RRS, HE3 for 2.1 MW RRS, HE4 for 2 MW RRS, HE5 for 1.9 MW RRS, HE6 for 1.8 MW RRS, HE7-9 for 1.5 MW RRS, HE10 for 1.6 MW RRS, HE11-12 for 1.7 MW RRS, HE13 for 1.8 MW RRS, HE14-15 for 1.9 MW RRS, HE16-17 for 2 MW RRS, HE18 for 1.9 MW RRS, HE19-22 for 1.8 MW RRS, HE23-24 for 2 MW RRS. | Operational Information | Active |
| Feb 21 2021 16:08:42 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 21 2021 08:48:20 CST | The Daily RSASM for Sunday, February 21, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 21 2021 00:03:29 CST | No sudden loss of generation greater than 450 MW occurred on February 20, 2021 | Operational Information | Active |
| Feb 20 2021 19:52:30 CST | The BKAT RAS has been placed in service. | Operational Information | Active |
| Feb 20 2021 13:01:13 CST | ERCOT is taking manual actions for severe voltage congestion. | Operational Information | Active |
| Feb 20 2021 11:06:13 CST | DC Tie Outage: The NORTH DC Tie will be unavailable from 09:30 02/24/2021 through 16:00 03/02/2021 due to a planned outage. | Operational Information | Active |
| Feb 20 2021 08:45:41 CST | The Daily RSASM for Saturday, February 20, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 20 2021 00:14:13 CST | No sudden loss of generation greater than 450 MW occurred on February 19, 2021 | Operational Information | Active |
| Feb 19 2021 22:48:13 CST | DC Tie Outage: ERCOT has cancelled the following notice: The North DC Tie will be unavailable from 09:30 02/22/2021 through 16:00 02/26/2021 due to a planned outage. | Operational Information | Cancelled |
| Feb 19 2021 22:27:27 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 22:00 for operating day 02/20/21 for HE 1-24 for 12 MW RRS. | Operational Information | Cancelled |
| Feb 19 2021 21:30:06 CST | ERCOT will execute a SASM at 22:00 for operating day 02/20/21 for HE 1-24 for 12 MW RRS. | Operational Information | Active |
| Feb 19 2021 18:30:24 CST | DC Tie Outage: ERCOT has cancelled the following notice: The RAILROAD DC Tie will be unavailable from 18:00 02/15/2021 through 12:00 02/19/2021 due to a forced outage. | Operational Information | Cancelled |
| Feb 19 2021 15:50:55 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 15:30 for operating day 19February2021 for HE 18-24 for 16.6MW of RRS. | Operational Information | Cancelled |
| Feb 19 2021 15:00:21 CST | ERCOT will execute a SASM at 15:30 for operating day 19February2021 for HE 18-24 for 16.6MW of RRS. | Operational Information | Active |
| Feb 19 2021 14:48:57 CST | DAM is complete, DRUC will begin at 1545. | Operational Information | Active |
| Feb 19 2021 14:33:35 CST | ERCOT has cancelled the following notice: At 23:17 Non-Spin deployment has been extended due to continuation of EEA3, anticipated duration is 24 hours. | Operational Information | Cancelled |
| Feb 19 2021 13:27:04 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions for an severe thermal congestion. | Operational Information | Cancelled |
| Feb 19 2021 12:53:16 CST | ERCOT has cancelled the Watch for the freezing precipitation event which has caused multiple forced Transmission outages across the ERCOT Region. | Operational Information | Active |
| Feb 19 2021 12:52:55 CST | ERCOT has cancelled the Watch issued for the extreme cold weather event for the ERCOT Region. | Operational Information | Active |
| Feb 19 2021 12:52:24 CST | ERCOT has cancelled the Advisory issued for the predicted extreme cold weather event for the ERCOT Region. | Operational Information | Active |
| Feb 19 2021 12:51:48 CST | ERCOT has cancelled the OCN for an extreme cold weather system approaching the ERCOT Region. | Operational Information | Active |
| Feb 19 2021 10:36:33 CST | Return to Normal: At 10:35, ERCOT moving from EEA 1 to Normal. Grid reserves restored. Normal conditions - Conservation encouraged. | Emergency Notice | Active |
| Feb 19 2021 10:02:29 CST | EEA Level 2 to Level 1: At 10:00, ERCOT moving from EEA 2 to EEA 1. System recovering. No rotating outages at this time. | Emergency Notice | Active |
| Feb 19 2021 09:06:59 CST | EEA Level 3 to Level 2: At 09:00, ERCOT moving from EEA 3 to EEA 2. System recovering. | Emergency Notice | Active |
| Feb 19 2021 08:45:55 CST | The Daily RSASM for Friday, February 19, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 19 2021 00:39:21 CST | No sudden loss of generation greater than 450 MW occurred on February 18, 2021 | Operational Information | Active |
| Feb 18 2021 23:18:33 CST | At 23:17 Non-Spin deployment has been extended due to continuation of EEA3, anticipated duration is 24 hours. | Operational Information | Active |
| Feb 18 2021 19:50:27 CST | DC Tie Curtailment Notice: ERCOT has cancelled the following notice: The Laredo DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to an actual or anticipated emergency in its Control Area. | DC Tie Curtailment Notice | Cancelled |
| Feb 18 2021 19:50:03 CST | DC Tie Outage: ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 16:00 02/15/2021 through 17:00 02/18/2021 due to a forced outage. | Operational Information | Cancelled |
| Feb 18 2021 10:32:08 CST | DC Tie Outage: The Laredo DC Tie will be unavailable from 16:00 02/15/2021 through 17:00 02/18/2021 due to a forced outage. | Operational Information | Active |
| Feb 18 2021 10:29:40 CST | DC Tie Outage: ERCOT has cancelled the following notice: The LAREDO DC Tie will be unavailable from 16:00 02/15/2021 through 12:00 02/18/2021 due to a forced outage. | Operational Information | Cancelled |
| Feb 18 2021 10:05:14 CST | ERCOT is taking manual actions for an severe thermal congestion. | Operational Information | Active |
| Feb 18 2021 10:04:52 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions for an severe thermal congestion. | Operational Information | Cancelled |
| Feb 18 2021 08:49:32 CST | The Daily RSASM for Thursday, February 18, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 18 2021 08:46:03 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions for an severe thermal congestion. | Operational Information | Cancelled |
| Feb 18 2021 08:45:53 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions for an severe thermal congestion. | Operational Information | Cancelled |
| Feb 18 2021 08:41:27 CST | ERCOT is taking manual actions for an severe thermal congestion. | Operational Information | Active |
| Feb 18 2021 01:02:13 CST | No sudden loss of generation greater than 450 MW occurred on February 17, 2021. | Operational Information | Active |
| Feb 18 2021 01:01:59 CST | No sudden loss of generation greater than 450 MW occurred on February 16, 2021. | Operational Information | Active |
| Feb 17 2021 23:12:53 CST | At 23:12 Non-Spin deployment has been extended due to continuation of EEA3, anticipated duration is 24 hours. | Operational Information | Active |
| Feb 17 2021 12:32:31 CST | DC Tie Outage: The RAILROAD DC Tie will be unavailable from 18:00 02/15/2021 through 12:00 02/19/2021 due to a forced outage. | Operational Information | Active |
| Feb 17 2021 12:31:26 CST | DC Tie Outage: The LAREDO DC Tie will be unavailable from 16:00 02/15/2021 through 12:00 02/18/2021 due to a forced outage. | Operational Information | Active |
| Feb 17 2021 12:30:20 CST | DC Tie Outage: ERCOT has cancelled the following notice: The Railroad DC Tie will be unavailable from 18:00 02/16/2021 through 23:59 02/17/2021 due to a planned outage. | Operational Information | Cancelled |
| Feb 17 2021 12:30:05 CST | DC Tie Curtailment Notice: ERCOT has cancelled the following notice: The 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 |
| Feb 17 2021 12:29:56 CST | DC Tie Curtailment Notice: ERCOT has cancelled the following notice: The Laredo 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 |
| Feb 17 2021 12:29:40 CST | DC Tie Outage: ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 16:00 02/15/2021 through 12:00 02/17/2021 due to a forced outage. | Operational Information | Cancelled |
| Feb 17 2021 09:18:23 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 17 2021 08:49:03 CST | The Daily RSASM for Wednesday, February 17, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 17 2021 06:05:47 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 17 2021 02:56:37 CST | ERCOT is taking manual action on Base case Valley Export due to a forced outage | Operational Information | Active |
| Feb 16 2021 23:19:01 CST | At 23:18 Non-Spin deployment has been extended due to continuation of EEA3, anticipated duration is 24 hours. | Operational Information | Active |
| Feb 16 2021 18:23:39 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 16 2021 18:09:31 CST | DC Tie Outage: The Railroad DC Tie will be unavailable from 18:00 02/16/2021 through 23:59 02/17/2021 due to a planned outage. | Operational Information | Active |
| Feb 16 2021 18:08:13 CST | DC Tie Outage: ERCOT has cancelled the following notice: The Railroad DC Tie will be unavailable from 16:00 02/15/2021 through 12:00 02/17/2021 due to a forced outage. | Operational Information | Cancelled |
| Feb 16 2021 17:29:15 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 16 2021 15:38:57 CST | ERCOT is issuing a watch due to the shortage of ancillary services in the DAM | Watch | Active |
| Feb 16 2021 15:08:59 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 16 2021 14:27:39 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 16 2021 13:01:03 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 16 2021 12:48:55 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 16 2021 10:10:18 CST | DC Tie Curtailment Notice: ERCOT has cancelled the following notice: The North DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to an actual or anticipated emergency in its Control Area. | DC Tie Curtailment Notice | Cancelled |
| Feb 16 2021 09:31:15 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 16 2021 08:51:27 CST | The Daily RSASM for Tuesday February 16, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 16 2021 08:03:15 CST | DC Tie Curtailment Notice: The North DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to an actual or anticipated emergency in its Control Area. | DC Tie Curtailment Notice | Active |
| Feb 16 2021 03:23:07 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 16 2021 01:28:56 CST | No sudden loss of generation greater than 450 MW occurred on February 15, 2021. | Operational Information | Active |
| Feb 15 2021 23:29:15 CST | At 23:26 Non-Spin deployment has been extended due to continuation of EEA3, anticipated duration is 24 hours. | Operational Information | Active |
| Feb 15 2021 22:35:19 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 15 2021 21:42:11 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 15 2021 19:28:55 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 15 2021 18:16:31 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 15 2021 17:42:51 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 15 2021 17:08:07 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 15 2021 16:35:48 CST | DC Tie Curtailment Notice: The 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 |
| Feb 15 2021 16:31:05 CST | DC Tie Curtailment Notice: The Laredo 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 |
| Feb 15 2021 16:24:00 CST | DC Tie Outage: The Railroad DC Tie will be unavailable from 16:00 02/15/2021 through 12:00 02/17/2021 due to a forced outage. | Operational Information | Active |
| Feb 15 2021 16:23:19 CST | DC Tie Outage: The Laredo DC Tie will be unavailable from 16:00 02/15/2021 through 12:00 02/17/2021 due to a forced outage. | Operational Information | Active |
| Feb 15 2021 13:25:09 CST | DC Tie Outage: The North DC Tie will be unavailable from 09:30 02/22/2021 through 16:00 02/26/2021 due to a planned outage. | Operational Information | Active |
| Feb 15 2021 12:42:53 CST | ERCOT is issuing a watch due to HRUC timeline deviation | Watch | Active |
| Feb 15 2021 11:56:31 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 15 2021 11:47:30 CST | ERCOT is issuing a watch due to HRUC timeline deviation | Watch | Active |
| Feb 15 2021 10:44:57 CST | ERCOT is issuing a watch due to HRUC timeline deviation | Operational Information | Active |
| Feb 15 2021 09:43:43 CST | ERCOT is issuing a watch due to HRUC timeline deviation | Watch | Active |
| Feb 15 2021 08:56:53 CST | The Daily RSASM for Monday February 15, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 15 2021 08:43:11 CST | ERCOT is issuing a watch due to HRUC timeline deviation | Watch | Active |
| Feb 15 2021 07:33:52 CST | ERCOT is issuing a watch for HRUC timeline deviation | Watch | Active |
| Feb 15 2021 06:38:09 CST | ERCOT is issuing a watch due to HRUC timeline deviation | Watch | Active |
| Feb 15 2021 06:20:46 CST | DC Tie Curtailment Notice: The Laredo DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to an actual or anticipated emergency in its Control Area. | DC Tie Curtailment Notice | Active |
| Feb 15 2021 06:20:20 CST | DC Tie Curtailment Notice: The Railroad DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to an actual or anticipated emergency in its Control Area. | DC Tie Curtailment Notice | Active |
| Feb 15 2021 05:43:23 CST | ERCOT is issuing a watch due to HRUC timeline deviation | Watch | Active |
| Feb 15 2021 05:05:51 CST | ERCOT issued a watch due to timeline deviation on HRUC | Watch | Active |
| Feb 15 2021 04:46:46 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions for an severe thermal congestion. | Operational Information | Cancelled |
| Feb 15 2021 03:43:19 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 15 2021 02:50:49 CST | ERCOT issued a Watch for a projected reserve capacity shortage with no market solution available for HE 04:00 24:00, which causes a high risk for an EEA event. | Watch | Active |
| Feb 15 2021 02:03:15 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 15 2021 01:25:40 CST | EEA Level 3 With Firm Load Shed: At 01:20, Rotating outages are in progress to maintain frequency. ERCOT is asking consumers and businesses to reduce electricity use. | Emergency Notice | Active |
| Feb 15 2021 01:12:06 CST | EEA Level 2: At 01:07, ERCOT at EEA 2 - Reserves below 1, 750 MW. Load resources are being deployed. There may be a need to implement rotating outages. ERCOT is urging consumers and businesses to reduce electricity usage. | Emergency Notice | Active |
| Feb 15 2021 00:43:44 CST | No sudden loss of generation greater than 450 MW occurred on February 14, 2021. | Operational Information | Active |
| Feb 15 2021 00:17:45 CST | EEA Level 1: At 00:15, ERCOT at EEA 1 - Reserves below 2, 300 MW. No rotating outages at this time. | Emergency Notice | Active |
| Feb 15 2021 00:12:39 CST | ERCOT is issuing a Watch for Physical Responsive Capability less than 2500 MW. | Watch | Active |
| Feb 14 2021 23:32:49 CST | ERCOT is issuing an Advisory for Physical Responsive Capability less than 3000 MW. | Advisory | Active |
| Feb 14 2021 23:25:26 CST | At 23:17 approximately 149.3 MW of Non-Spin has been deployed, anticipated duration is until 03:00. | Operational Information | Active |
| Feb 14 2021 23:19:23 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 14 2021 21:58:18 CST | ERCOT has cancelled the following notice: ERCOT issued a Watch for a projected reserve capacity shortage with no market solution available for HE 17:00 21:00 , which causes a high risk for an EEA event. | Watch | Cancelled |
| Feb 14 2021 18:46:44 CST | ERCOT is taking manual actions for an severe thermal congestion. | Operational Information | Active |
| Feb 14 2021 17:19:45 CST | Watch for the freezing precipitation event which has caused multiple forced Transmission outages across the ERCOT Region. | Watch | Active |
| Feb 14 2021 15:27:24 CST | DAM is complete, DRUC will begin at 16:05. | Operational Information | Active |
| Feb 14 2021 15:17:35 CST | ERCOT issued a Watch for a projected reserve capacity shortage with no market solution available for HE 17:00 21:00 , which causes a high risk for an EEA event. | Watch | Active |
| Feb 14 2021 15:03:45 CST | DAM is complete, DRUC will begin at 16:05. | Operational Information | Active |
| Feb 14 2021 10:54:13 CST | ERCOT is issuing a Watch due to insufficient Ancillary Service offers in the Day Ahead Market. ERCOT is requesting additional Ancillary Service Offers for Down Regulation, Responsive Reserve. | Watch | Active |
| Feb 14 2021 10:02:26 CST | 08:30 ERCOT has issued an appeal through the public news media for voluntary energy conservation. | Operational Information | Active |
| Feb 14 2021 08:45:13 CST | The Daily RSASM for Sunday February 14, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Feb 14 2021 01:34:58 CST | On February 13, 2021, a sudden loss of generation occurred at 04:02 totaling 539 MW. Frequency declined to 59.923 Hz, ERCOT load was 55, 391 MW. | Operational Information | Active |
| Feb 13 2021 12:59:23 CST | Physical Responsive Capability < 3000 MW: ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW | Advisory | Cancelled |
| Feb 13 2021 08:49:44 CST | Emergency Notice issued for the extreme cold weather event impacting the ERCOT Region. | Emergency Notice | Active |
| Feb 13 2021 08:45:10 CST | The Daily RSASM for Saturday February 13, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Feb 13 2021 08:44:55 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Feb 13 2021 08:43:47 CST | Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW | Advisory | Active |
| Feb 13 2021 08:36:51 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Feb 13 2021 06:22:39 CST | ERCOT has cancelled the following notice: ERCOT is issuing a Watch due to HRUC Failure for HE 07:00. | Watch | Cancelled |
| Feb 13 2021 06:22:23 CST | ERCOT has cancelled the following notice: ERCOT is issuing a Watch due to HRUC Failure for HE 07:00. | Watch | Cancelled |
| Feb 13 2021 06:22:15 CST | ERCOT has cancelled the following notice: ERCOT is issuing a Watch due to HRUC Failure for HE 06:00. | Watch | Cancelled |
| Feb 13 2021 05:53:57 CST | ERCOT is issuing a Watch due to HRUC Failure for HE 07:00. | Watch | Active |
| Feb 13 2021 04:29:56 CST | ERCOT is issuing a Watch due to HRUC Failure for HE 06:00. | Watch | Active |
| Feb 13 2021 02:51:41 CST | Bearkat RAS has been taken out of service/removed from RTCA | Operational Information | Active |
| Feb 13 2021 00:37:14 CST | No sudden loss of generation greater than 450 MW occurred on February 12, 2021. | Operational Information | Active |
| Feb 12 2021 09:24:53 CST | ERCOT has cancelled the following notice: 04:03 The Bearkat RAS has been taken out of service/removed from RTCA . | Operational Information | Cancelled |
| Feb 12 2021 09:24:40 CST | 04:03 The Bearkat RAS has been taken out of service/removed from RTCA . | Operational Information | Active |
| Feb 12 2021 08:46:27 CST | The Daily RSASM for Friday February 12, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Feb 12 2021 04:08:39 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 12 2021 00:08:44 CST | No sudden loss of generation greater than 450 MW occurred on February 11, 2021. | Operational Information | Active |
| Feb 11 2021 16:03:08 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 11 2021 16:02:45 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 11 2021 11:25:21 CST | Watch issued for the extreme cold weather event for the ERCOT Region. | Watch | Active |
| Feb 11 2021 08:46:09 CST | The Daily RSASM for Thursday February 11, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Feb 11 2021 04:14:29 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 11 2021 00:37:49 CST | No sudden loss of generation greater than 450 MW occurred on February 10, 2021. | Operational Information | Active |
| Feb 10 2021 17:09:45 CST | Advisory issued for the predicted extreme cold weather event for the ERCOT Region. | Advisory | Active |
| Feb 10 2021 16:05:08 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 10 2021 15:21:14 CST | The Culberson Loop RAS has been taken out of service. | Operational Information | Active |
| Feb 10 2021 08:45:34 CST | The Daily RSASM for Wednesday February 10, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Feb 10 2021 04:10:47 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 10 2021 04:10:37 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Feb 10 2021 00:16:35 CST | No sudden loss of generation greater than 450 MW occurred on February 9, 2021. | Operational Information | Active |
| Feb 09 2021 16:11:03 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 09 2021 14:07:28 CST | DAM is complete, DRUC will begin at 14:50 | Operational Information | Active |
| Feb 09 2021 14:07:02 CST | ERCOT has cancelled the following notice: DAM is complete, DRUC will begin at 13:50. | Operational Information | Cancelled |
| Feb 09 2021 13:54:23 CST | DAM is complete, DRUC will begin at 13:50. | Operational Information | Active |
| Feb 09 2021 13:26:10 CST | ERCOT has postponed the deadline for the posting of the DAM Solution for Operating Day February 10, 2021 due to a long solution run time and congestion. | Advisory | Active |
| Feb 09 2021 08:46:05 CST | The Daily RSASM for Tuesday February 9, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Feb 09 2021 04:06:04 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 09 2021 04:05:53 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Feb 09 2021 00:06:26 CST | No sudden loss of generation greater than 450 MW occurred on February 8, 2021. | Operational Information | Active |
| Feb 08 2021 18:53:55 CST | At 17:15, ERCOT is issuing an OCN for an extreme cold weather system approaching Thursday, February 11, 2021 through Monday, February 15, 2021 with temperatures anticipated to remain 32°F or below. QSEs are instructed to: Update COPs and HSLs when conditions change as soon practicable, Review fuel supplies, prepare to preserve fuel to best serve peak load, and notify ERCOT of any known or anticipated fuel restrictions, Review Planned Resource outages and consider delaying maintenance or returning from outage early, Review and implement winterization procedures. Notify ERCOT of any changes or conditions that could affect system reliability. | OCN | Active |
| Feb 08 2021 16:09:27 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 08 2021 16:09:15 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 08 2021 09:34:25 CST | OCN issued for the predicted freezing precipitation event for the Panhandle and North areas of the ERCOT Region. | Operational Information | Active |
| Feb 08 2021 08:46:04 CST | The Daily RSASM for Monday February 8, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Feb 08 2021 08:02:14 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 07:35 for operating day 08February2021 for HE 21 for 1.60MW of REGDN. | Operational Information | Cancelled |
| Feb 08 2021 07:04:50 CST | ERCOT will execute a SASM at 07:35 for operating day 08February2021 for HE 21 for 1.60MW of REGDN. | Operational Information | Active |
| Feb 08 2021 04:18:04 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 08 2021 04:17:56 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Feb 08 2021 00:30:19 CST | No sudden loss of generation greater than 450 MW occurred on February 7, 2021. | Operational Information | Active |
| Feb 07 2021 16:07:43 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 07 2021 08:46:34 CST | The Daily RSASM for Sunday February 7, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 07 2021 04:05:30 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 07 2021 00:51:41 CST | No sudden loss of generation greater than 450 MW occurred on February 6, 2021. | Operational Information | Active |
| Feb 06 2021 16:05:04 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 06 2021 08:47:07 CST | The Daily RSASM for Saturday February 6, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 06 2021 04:02:25 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor | Operational Information | Active |
| Feb 06 2021 00:28:29 CST | No sudden loss of generation greater than 450 MW occurred on February 5, 2021. | Operational Information | Active |
| Feb 05 2021 16:09:07 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 05 2021 08:47:28 CST | The Daily RSASM for Friday February 5, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 05 2021 03:59:18 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 05 2021 01:23:26 CST | No sudden loss of generation greater than 450 MW occurred on February 4, 2021. | Operational Information | Active |
| Feb 04 2021 16:01:03 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 04 2021 16:00:51 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 04 2021 08:46:43 CST | The Daily RSASM for Thursday February 4, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Feb 04 2021 04:02:38 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 04 2021 00:32:36 CST | No sudden loss of generation greater than 450 MW occurred on February 3, 2021. | Operational Information | Active |
| Feb 03 2021 16:10:23 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 03 2021 16:10:08 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 03 2021 08:45:23 CST | The Daily RSASM for Wednesday February 3, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Feb 03 2021 04:07:34 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 03 2021 01:18:44 CST | No sudden loss of generation greater than 450 MW occurred on February 2, 2021. | Operational Information | Active |
| Feb 02 2021 19:42:36 CST | ERCOT has cancelled the following notice: An OCN has been issued due to ERCOT modifying the Bearkat GTC due to a transmission topology change. | OCN | Cancelled |
| Feb 02 2021 19:38:17 CST | ERCOT has cancelled the following notice: The Bearkat RAS has been taken out of service/removed from RTCA. | Operational Information | Cancelled |
| Feb 02 2021 18:08:57 CST | ERCOT has cancelled the following notice: ERCOT is taking Manual Actions to pre-posture for the Raymondville2 to Yturria Sub 138kv line outage. | Operational Information | Cancelled |
| Feb 02 2021 17:27:58 CST | ERCOT is taking Manual Actions to pre-posture for the Raymondville2 to Yturria Sub 138kv line outage. | Operational Information | Active |
| Feb 02 2021 16:11:27 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 02 2021 16:11:18 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 02 2021 10:47:08 CST | The Bearkat RAS has been taken out of service/removed from RTCA. | Operational Information | Active |
| Feb 02 2021 10:10:26 CST | An OCN has been issued due to ERCOT modifying the Bearkat GTC due to a transmission topology change. | OCN | Active |
| Feb 02 2021 08:45:37 CST | The Daily RSASM for Tuesday February 2, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Feb 02 2021 04:06:00 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 02 2021 00:16:01 CST | No sudden loss of generation greater than 450 MW occurred on February 1, 2021. | Operational Information | Active |
| Feb 01 2021 16:09:58 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Feb 01 2021 16:09:44 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Feb 01 2021 08:45:42 CST | The Daily RSASM for Monday February 1, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Feb 01 2021 04:18:54 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Feb 01 2021 00:02:29 CST | No sudden loss of generation greater than 450 MW occurred on January 31, 2021. | Operational Information | Active |