Operations Messages
This section contains important messages from the ERCOT Control Room. Refresh this screen to see current operation messages. (Subscribe to Operations Messages 
RSS feed.)
| Date | Message | Type | Status |
|---|---|---|---|
| Apr 30 2021 23:36:33 CST | ERCOT has updated the AAN for a possible future Emergency Condition of reserve capacity deficiency beginning May 3, 2021 HE 14 until May 3, 2021 HE 21 based on changed conditions. QSEs have updated their Resource COPs and their Outage Scheduler. At this time, ERCOT does not seek additional capacity and will not be issuing any OSAs. ERCOT has posted an updated AAN Planning Assessment for reference. | Operational Information | Active |
| Apr 30 2021 22:18:15 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Apr 30 2021 22:14:55 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Apr 30 2021 20:01:14 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions using the EASTEX GTC for the Mt Enterprise to Martin Lake to Stryker Creek 345kV line outages due to an unsolved contingency DMTSTYG5. | Operational Information | Cancelled |
| Apr 30 2021 08:47:02 CST | The Daily RSASM for Friday April 30, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 30 2021 00:10:52 CST | No sudden loss of generation greater than 450 MW occurred on April 29, 2021. | Operational Information | Active |
| Apr 29 2021 22:59:30 CST | At 22:50, ERCOT issued an AAN due to a possible future Emergency Condition of reserve capacity deficiency beginning May 3, 2021 HE 14 until May 3, 2021 HE 21 . ERCOT may Delay/Withdrawn Approved or Accepted Resource Outages . ERCOT may seek 2, 000 MW from an OAE and then make the OSA. On April 30, 2021 at 22:50 ERCOT will execute an OAE if deemed necessary. Please notify the ERCOT Client Services if a specific resource can not be considered in the OAE. | Operational Information | Active |
| Apr 29 2021 22:59:11 CST | At 22:50, ERCOT issued an AAN due to a possible future Emergency Condition of reserve capacity deficiency beginning May 3, 2021 HE 14 until May 3, 2021 HE 21 . ERCOT may Delay/Withdrawn Approved or Accepted Resource Outages . ERCOT may seek 2, 000 MW from an OAE and then make the OSA. On April 30, 2021 at 22:50 ERCOT will execute an OAE if deemed necessary. Please notify the ERCOT Client Services if a specific resource can not be considered in the OAE. | Operational Information | Active |
| Apr 29 2021 20:18:48 CST | ERCOT has cancelled the following notice: For clarification, ERCOT did not issue a watch for N-H interface requiring Non-Spin deployment, At 14:00, ERCOT issued a Transmission Watch due to the post-contingency overload of DSTPRED5 a temporary outage action plan was developed. | Operational Information | Cancelled |
| Apr 29 2021 20:18:38 CST | ERCOT has cancelled the following notice: For clarification, ERCOT did not issue a watch for N-H interface requiring Non-Spin deployment, At 14:00, ERCOT issued a Transmission Watch due to the post-contingency overload of DSTPRED5 a temporary outage action plan was developed. | Operational Information | Cancelled |
| Apr 29 2021 19:13:22 CST | For clarification, ERCOT did not issue a watch for N-H interface requiring Non-Spin deployment, At 14:00, ERCOT issued a Transmission Watch due to the post-contingency overload of DSTPRED5 a temporary outage action plan was developed. | Operational Information | Active |
| Apr 29 2021 19:12:41 CST | ERCOT has cancelled the following notice: ERCOT is issuing a Watch for the North to Houston interface. ERCOT will be deploying Non-Spin to specific resources to alleviate the condition. | Operational Information | Cancelled |
| Apr 29 2021 14:12:52 CST | ERCOT is issuing a Watch for the North to Houston interface. ERCOT will be deploying Non-Spin to specific resources to alleviate the condition. | Operational Information | Active |
| Apr 29 2021 08:47:25 CST | The Daily RSASM for Thursday April 29, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 29 2021 00:53:03 CST | On April 28, 2021, a sudden loss of generation occurred at 21:03 totaling 530 MW. Frequency declined to 59.909 Hz, ERCOT load was 49, 543 MW. | Operational Information | Active |
| Apr 28 2021 08:45:41 CST | The Daily RSASM for Wednesday April 28, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Apr 28 2021 01:35:50 CST | No sudden loss of generation greater than 450 MW occurred on April 27, 2021 | Operational Information | Active |
| Apr 28 2021 01:19:36 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 00:53 for operating day 04/28/21 for HE 3-10 and 12-24 for 1.1 MW reg up. | Operational Information | Cancelled |
| Apr 28 2021 00:29:48 CST | ERCOT will execute a SASM at 00:53 for operating day 04/28/21 for HE 3-10 and 12-24 for 1.1 MW reg up. | Operational Information | Active |
| Apr 27 2021 08:45:13 CST | The Daily RSASM for Tuesday April 27, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Apr 27 2021 01:46:25 CST | No sudden loss of generation greater than 450 MW occurred on April 26, 2021 | Operational Information | Active |
| Apr 26 2021 08:45:43 CST | The Daily RSASM for Monday April 26, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Apr 26 2021 08:29:33 CST | ERCOT is taking manual actions using the EASTEX GTC for the Mt Enterprise to Martin Lake to Stryker Creek 345kV line outages due to an unsolved contingency DMTSTYG5. | Operational Information | Active |
| Apr 26 2021 02:13:38 CST | No sudden loss of generation greater than 450 MW occurred on April 25, 2021 | Operational Information | Active |
| Apr 25 2021 23:40:17 CST | ERCOT has cancelled the following notice: ERCOT is taking manual action for Unsolved Contingency DMLSTYG5. | Operational Information | Cancelled |
| Apr 25 2021 19:55:35 CST | ERCOT is taking manual action for Unsolved Contingency DMLSTYG5. | Operational Information | Active |
| Apr 25 2021 08:47:41 CST | The Daily RSASM for Sunday April 25, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 25 2021 03:05:50 CST | No sudden loss of generation greater than 450 MW occurred on April 24, 2021 | Operational Information | Active |
| Apr 24 2021 08:48:25 CST | The Daily RSASM for Saturday April 24, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 23 2021 08:47:28 CST | The Daily RSASM for Friday April 23, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 23 2021 00:06:27 CST | No sudden loss of generation greater than 450 MW occurred on April 22, 2021 | Operational Information | Active |
| Apr 22 2021 08:48:07 CST | The Daily RSASM for Thursday April 22, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 22 2021 00:11:10 CST | No sudden loss of generation greater than 450 MW occurred on April 21, 2021 | Operational Information | Active |
| Apr 21 2021 18:31:38 CST | ERCOT has cancelled the following notice: ERCOT is taking manual action to pre-posture for the Coulomb to Gauss to Clear Crossing 345kv and the Edith Clark to Gauss to Smokey Hill 345kv line outages. | Operational Information | Cancelled |
| Apr 21 2021 16:51:26 CST | ERCOT is taking manual action to pre-posture for the Coulomb to Gauss to Clear Crossing 345kv and the Edith Clark to Gauss to Smokey Hill 345kv line outages. | Operational Information | Active |
| Apr 21 2021 08:47:22 CST | The Daily RSASM for Wednesday April 21, 2021 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Apr 21 2021 04:07:26 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 21 2021 00:29:41 CST | No sudden loss of generation greater than 450 MW occurred on April 20, 2021 | Operational Information | Active |
| Apr 20 2021 16:07:07 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 20 2021 08:47:45 CST | The Daily RSASM for Tuesday April 20, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 20 2021 00:05:06 CST | No sudden loss of generation greater than 450 MW occurred on April 19, 2021 | Operational Information | Active |
| Apr 19 2021 13:55:17 CST | ERCOT has cancelled the following notice: "The East DC Tie will be unavailable from 07:30 04/06/21 through 15:00 on 05/06/21 due to a Planned Outage."DC_E is available for full capacity. | Operational Information | Active |
| Apr 19 2021 08:51:37 CST | The Daily RSASM for Monday April 19, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 19 2021 00:02:31 CST | No sudden loss of generation greater than 450 MW occurred on April 18, 2021 | Operational Information | Active |
| Apr 18 2021 08:49:03 CST | The Daily RSASM for Sunday April 18, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 18 2021 00:11:12 CST | No sudden loss of generation greater than 450 MW occurred on April 17, 2021 | Operational Information | Active |
| Apr 17 2021 08:49:25 CST | The Daily RSASM for Saturday April 17, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 17 2021 00:16:31 CST | No sudden loss of generation greater than 450 MW occurred on April 16, 2021 | Operational Information | Active |
| Apr 17 2021 00:15:45 CST | No sudden loss of generation greater than 450 MW occurred on April 15, 2021 | Operational Information | Active |
| Apr 17 2021 00:15:19 CST | No sudden loss of generation greater than 450 MW occurred on April 14, 2021 | Operational Information | Active |
| Apr 16 2021 23:17:18 CST | ERCOT will execute a SASM at a time of 23:50 for operating day 04/17/2021 for HE02-24 for 10 MW REGUP and HE 02, 03, 24 for 3.8 MW REGDN HE04-08, 16-23 for 3.6 MW and HE09-15 for 3.5 MW REGDN. | Operational Information | Active |
| Apr 16 2021 08:48:06 CST | The Daily RSASM for Friday April 16, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 16 2021 04:03:19 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 15 2021 16:09:13 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 15 2021 15:22:42 CST | ERCOT has cancelled the following notice: ERCOT has been notified that the Laredo DC Tie has been derated to 73 MW Import/Export due to a loss of Ramping Capability until further notice. | Operational Information | Cancelled |
| Apr 15 2021 14:33:22 CST | DC Tie Outage: ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 11:08 04/15/2021 through 15:00 04/15/2021 due to a forced outage. | Operational Information | Cancelled |
| Apr 15 2021 14:32:32 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 |
| Apr 15 2021 12:35:55 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 |
| Apr 15 2021 11:27:36 CST | DC Tie Outage: The Laredo DC Tie will be unavailable from 11:08 04/15/2021 through 15:00 04/15/2021 due to a forced outage. | Operational Information | Active |
| Apr 15 2021 08:56:44 CST | The Daily RSASM for Thursday April 15, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 15 2021 04:13:06 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 15 2021 04:12:59 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 14 2021 20:08:08 CST | Capacity Insufficiency: ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 13:00 through 20:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Cancelled |
| Apr 14 2021 16:05:10 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 14 2021 13:55:37 CST | ERCOT has been notified that the Laredo DC Tie has been derated to 73 MW Import/Export due to a loss of Ramping Capability until further notice. | Operational Information | Active |
| Apr 14 2021 08:48:50 CST | The Daily RSASM for Wednesday April 14, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 14 2021 04:44:32 CST | No sudden loss of generation greater than 450 MW occurred on April 13, 2021 | Operational Information | Active |
| Apr 14 2021 04:44:00 CST | No sudden loss of generation greater than 450 MW occurred on April 12, 2021 | Operational Information | Active |
| Apr 14 2021 04:00:57 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 14 2021 04:00:47 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 13 2021 22:05:36 CST | Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 13:00 through 20:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Active |
| Apr 13 2021 21:00:43 CST | Capacity Insufficiency: ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 21:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Cancelled |
| Apr 13 2021 20:46:40 CST | ERCOT has cancelled the following notice: At 07:45, ERCOT is issuing an OCN for 04/12/2021 for a projected Reserve Capacity Shortage for HE14-18. | Operational Information | Cancelled |
| Apr 13 2021 20:32:37 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 |
| Apr 13 2021 19:22:55 CST | Physical Responsive Capability < 2500 MW: ERCOT has cancelled the following notice: ERCOT is issuing a Watch due to Physical Responsive Capability being below 2500 MW. | Watch | Cancelled |
| Apr 13 2021 19:21:13 CST | ERCOT at 19:20, All Non-Spin has been recalled. | Operational Information | Active |
| Apr 13 2021 18:39:47 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Apr 13 2021 17:19:13 CST | Physical Responsive Capability < 2500 MW: ERCOT is issuing a Watch due to Physical Responsive Capability being below 2500 MW. | Watch | Active |
| Apr 13 2021 16:23:41 CST | Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW | Advisory | Active |
| Apr 13 2021 16:16:04 CST | At 16:02 approximately 326 MW of Non-Spin has been deployed, anticipated duration is until 23:59. | Operational Information | Active |
| Apr 13 2021 16:08:05 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 13 2021 16:06:56 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 13 2021 15:58:35 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Apr 13 2021 08:48:07 CST | The Daily RSASM for Tuesday April 13, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 13 2021 04:01:00 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 13 2021 04:00:44 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 12 2021 22:06:03 CST | Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 21:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Active |
| Apr 12 2021 16:14:46 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 12 2021 08:50:36 CST | The Daily RSASM for Monday April 12, 2021 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 12 2021 07:51:22 CST | At 07:45, ERCOT is issuing an OCN for 04/12/2021 for a projected Reserve Capacity Shortage for HE14-18. | Operational Information | Active |
| Apr 12 2021 04:58:56 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 12 2021 04:58:48 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 12 2021 00:24:04 CST | No sudden loss of generation greater than 450 MW occurred on April 11, 2021 | Operational Information | Active |
| Apr 11 2021 21:06:44 CST | ERCOT has cancelled the following notice: At 14:40, ERCOT is issuing an OCN for operating day 4/11/21 for a projected Reserve Capacity Shortage for HE18 - HE21. | OCN | Cancelled |
| Apr 11 2021 21:05:29 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 |
| Apr 11 2021 20:37:59 CST | At 20:35, All Non-Spin has been recalled. | Operational Information | Active |
| Apr 11 2021 20:19:43 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Apr 11 2021 19:56:47 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Apr 11 2021 19:52:50 CST | At 19:21 approximately 409 MW of Non-Spin has been deployed, anticipated duration is until 23:59. | Operational Information | Active |
| Apr 11 2021 19:35:27 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Apr 11 2021 19:29:56 CST | Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW | Advisory | Active |
| Apr 11 2021 19:20:55 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Apr 11 2021 16:05:46 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Apr 11 2021 16:05:13 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 11 2021 14:45:51 CST | At 14:40, ERCOT is issuing an OCN for operating day 4/11/21 for a projected Reserve Capacity Shortage for HE18 - HE21. | OCN | Active |
| Apr 11 2021 08:47:45 CST | The Daily RSASM for Sunday, April 11, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 11 2021 04:02:47 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 11 2021 04:02:10 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 11 2021 02:06:05 CST | No sudden loss of generation greater than 450 MW occurred on April 10, 2021 | Operational Information | Active |
| Apr 10 2021 16:04:00 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 10 2021 16:03:33 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Apr 10 2021 08:47:24 CST | The Daily RSASM for Saturday, April 10, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 10 2021 03:59:59 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 10 2021 03:59:45 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 10 2021 00:05:33 CST | No sudden loss of generation greater than 450 MW occurred on April 9, 2021 | Operational Information | Active |
| Apr 09 2021 16:10:27 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Apr 09 2021 16:10:21 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 09 2021 08:46:59 CST | The Daily RSASM for Friday, April 9, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 09 2021 04:06:57 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 09 2021 04:06:31 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 09 2021 00:15:59 CST | No sudden loss of generation greater than 450 MW occurred on April 8, 2021 | Operational Information | Active |
| Apr 08 2021 20:37:26 CST | ERCOT has cancelled the following notice: At 8:30, ERCOT is issuing an OCN for operating day 4/8/21 for a projected Reserve Capacity Shortage for HE15 - HE20. | OCN | Cancelled |
| Apr 08 2021 16:06:05 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 08 2021 08:48:19 CST | The Daily RSASM for Thursday, April 8, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 08 2021 08:36:48 CST | At 8:30, ERCOT is issuing an OCN for operating day 4/8/21 for a projected Reserve Capacity Shortage for HE15 - HE20. | OCN | Active |
| Apr 08 2021 04:06:52 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 08 2021 04:06:33 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 08 2021 00:48:50 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 23:41 for operating day April 8th, 2021 for HE 02-09 for 14MW of RRS. | Operational Information | Cancelled |
| Apr 08 2021 00:07:44 CST | No sudden loss of generation greater than 450 MW occurred on April 7, 2021 | Operational Information | Active |
| Apr 07 2021 23:15:22 CST | ERCOT will execute a SASM at 23:41 for operating day April 8th, 2021 for HE 02-09 for 14MW of RRS. | Operational Information | Active |
| Apr 07 2021 16:06:33 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 07 2021 16:05:43 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 07 2021 16:05:41 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 07 2021 16:05:34 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Apr 07 2021 08:49:24 CST | The Daily RSASM for Wednesday, April 7, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 07 2021 04:04:17 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 07 2021 04:04:01 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 07 2021 01:39:12 CST | OCN for modifying the WESTEX Generic Transmission Constraint due to the current transmission outage topology. | Operational Information | Active |
| Apr 07 2021 00:57:19 CST | No sudden loss of generation greater than 450 MW occurred on April 6, 2021 | Operational Information | Active |
| Apr 06 2021 16:03:16 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 06 2021 16:03:07 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Apr 06 2021 15:03:34 CST | DC Tie Outage: ERCOT has cancelled the following notice: The North DC Tie will be unavailable from 16:12 04/05/2021 through 16:00 04/07/2021 due to a forced outage. | Operational Information | Cancelled |
| Apr 06 2021 08:47:30 CST | The Daily RSASM for Tuesday, April 6, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 06 2021 04:17:08 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 06 2021 04:16:43 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 06 2021 00:11:34 CST | No sudden loss of generation greater than 450 MW occurred on April 5, 2021. | Operational Information | Active |
| Apr 05 2021 22:13:25 CST | ERCOT will execute a SASM at 22:45 for operating day 04/06/2021 for HE01-07 for 20 MW RRS. | Operational Information | Active |
| Apr 05 2021 22:13:14 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 22:40 for operating day 04/06/2021 for HE01-07 for 20 MW RRS. | Operational Information | Cancelled |
| Apr 05 2021 22:06:12 CST | ERCOT will execute a SASM at 22:40 for operating day 04/06/2021 for HE01-07 for 20 MW RRS. | Operational Information | Active |
| Apr 05 2021 18:22:13 CST | ERCOT has cancelled the following notice: The North DC Tie is unavailable to operate with flows less than 130 MW due to equipment forced outage and is expected to return to normal operation 4/7/2021 at 16:00. | Operational Information | Cancelled |
| Apr 05 2021 18:00:22 CST | DC Tie Outage: The North DC Tie will be unavailable from 16:12 04/05/2021 through 16:00 04/07/2021 due to a forced outage. | Operational Information | Active |
| Apr 05 2021 17:44:37 CST | DC Tie Outage: The East DC Tie will be unavailable from 07:30 04/06/2021 through 15:00 05/06/2021 due to a planned outage. | Operational Information | Active |
| Apr 05 2021 17:42:39 CST | DC Tie Outage: ERCOT has cancelled the following notice: The North DC Tie will be unavailable from 07:30 04/06/2021 through 15:00 05/06/2021 due to a planned outage. | Operational Information | Cancelled |
| Apr 05 2021 17:21:37 CST | DC Tie Outage: The North DC Tie will be unavailable from 07:30 04/06/2021 through 15:00 05/06/2021 due to a planned outage. | Operational Information | Active |
| Apr 05 2021 16:02:18 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 05 2021 16:02:03 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Apr 05 2021 15:52:19 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions to pre-posture for planned outage. | Operational Information | Cancelled |
| Apr 05 2021 14:30:17 CST | The North DC Tie is unavailable to operate with flows less than 130 MW due to equipment forced outage and is expected to return to normal operation 4/7/2021 at 16:00. | Operational Information | Active |
| Apr 05 2021 12:46:51 CST | ERCOT is taking manual actions to pre-posture for planned outage. | Operational Information | Active |
| Apr 05 2021 12:46:03 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions to pre-posture for planned outage. | Operational Information | Cancelled |
| Apr 05 2021 12:06:28 CST | ERCOT is no longer taking manual action for contingency SBAKSCH5 | Operational Information | Active |
| Apr 05 2021 08:49:06 CST | The Daily RSASM for Monday, April 5, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 05 2021 05:49:37 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions to pre-posture for planned outage. | Operational Information | Cancelled |
| Apr 05 2021 05:38:06 CST | ERCOT is taking manual actions to pre-posture for planned outage. | Operational Information | Active |
| Apr 05 2021 04:14:28 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 05 2021 04:14:19 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 05 2021 00:20:54 CST | No sudden loss of generation greater than 450 MW occurred on April 4, 2021. | Operational Information | Active |
| Apr 04 2021 16:03:20 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 04 2021 16:03:07 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Apr 04 2021 08:45:58 CST | The Daily RSASM for Sunday, April 4, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 04 2021 04:08:42 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 04 2021 04:08:34 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 04 2021 00:00:11 CST | No sudden loss of generation greater than 450 MW occurred on April 3, 2021. | Operational Information | Active |
| Apr 03 2021 16:03:43 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 03 2021 16:03:29 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Apr 03 2021 08:46:04 CST | The Daily RSASM for Saturday, April 3, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 03 2021 04:07:55 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 03 2021 04:07:48 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 03 2021 00:09:57 CST | No sudden loss of generation greater than 450 MW occurred on April 2, 2021. | Operational Information | Active |
| Apr 02 2021 16:06:52 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 02 2021 16:06:32 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Apr 02 2021 08:46:02 CST | The Daily RSASM for Friday, April 2, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 02 2021 04:07:37 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 02 2021 04:07:25 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 02 2021 00:17:58 CST | No sudden loss of generation greater than 450 MW occurred on April 1, 2021. | Operational Information | Active |
| Apr 01 2021 19:57:35 CST | ERCOT has cancelled the following notice: ERCOT has been notified that the Railroad DC Tie has been derated to 150 MW Import/Export due to unavoidable outage extension until further notice. | Operational Information | Cancelled |
| Apr 01 2021 19:57:28 CST | ERCOT has cancelled the following notice: ERCOT has been notified that the Railroad DC Tie has been derated to 150 MW Import/Export due to unavoidable outage extension until further notice. | Operational Information | Cancelled |
| Apr 01 2021 16:20:12 CST | ERCOT has cancelled the following notice: ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Cancelled |
| Apr 01 2021 16:20:02 CST | ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Active |
| Apr 01 2021 16:00:11 CST | ERCOT Emergency Base Points are Disabled | Operational Information | Cancelled |
| Apr 01 2021 15:47:27 CST | ERCOT Emergency Base Points are Enabled | Operational Information | Active |
| Apr 01 2021 09:24:24 CST | The following Reports have been posted to MIS for OD 4/02/2021.CCP Resource Names, NOIE Mapping, Resource Node to Unit, Settlement Points. | Operational Information | Active |
| Apr 01 2021 08:46:50 CST | The Daily RSASM for Thursday, April 1, 2021, will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Apr 01 2021 06:07:49 CST | ERCOT has determined that the following Reports are missing from the MIS for OD 4/02/2021, and the issue is being investigated.Under Settlement Points and Bus Mapping Location, CCP Resource Names, NOIE Mapping, Resource Node to Unit, Settlement Points | Operational Information | Active |
| Apr 01 2021 04:09:42 CST | ERCOT is working from the Primary Control Center, use the OPX numbers for Taylor. | Operational Information | Active |
| Apr 01 2021 04:09:29 CST | ERCOT has cancelled the following notice: ERCOT is working from the Alternate Control Center, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Apr 01 2021 00:40:06 CST | ERCOT issued OCN continues for the PANHANDLE IROL due to taking manual action on the stability limit due to transmission outages. | Operational Information | Active |
| Apr 01 2021 00:09:47 CST | No sudden loss of generation greater than 450 MW occurred on March 31, 2021. | Operational Information | Active |