Operations Messages

This section contains important messages from the ERCOT Control Room. Refresh this screen to see current operation messages. (Subscribe to Operations Messages Feed RSS feed.)

Sep 2020 Oct 2020 Nov 2020 Dec 2020 Jan 2021 Feb 2021
Date Message Type Status
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