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 |
|---|---|---|---|
| Sep 21 2019 03:03:42 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| Sep 21 2019 03:00:22 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Sep 21 2019 00:04:40 CST | No sudden loss of generation greater than 450 MW occurred on September 20, 2019. | Operational Information | Active |
| Sep 20 2019 18:20:51 CST | ERCOT has cancelled the following notice: The DC_L 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 |
| Sep 20 2019 18:20:45 CST | ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 14:41 09/20/2019 through 23:59 due to a forced outage. | Operational Information | Cancelled |
| Sep 20 2019 15:07:38 CST | The Laredo DC Tie will be unavailable from 14:41 09/20/2019 through 23:59 due to a forced outage. | Operational Information | Active |
| Sep 20 2019 14:53:44 CST | DC Tie Curtailment Notice: The DC_L 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 |
| Sep 20 2019 08:47:19 CST | The Daily RSASM for Friday September 20, 2019 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Sep 20 2019 00:22:05 CST | No sudden loss of generation greater than 450 MW occurred on September 19, 2019. | Operational Information | Active |
| Sep 19 2019 17:02:40 CST | ERCOT has cancelled the following notice: At 00:05 ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 15:00 through 17:00. ERCOT is requesting all QSE's to update their COPs. | Operational Information | Cancelled |
| Sep 19 2019 14:56:40 CST | ERCOT has cancelled the following notice: The DC_L Curtail to 0 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 |
| Sep 19 2019 14:48:38 CST | ERCOT has cancelled the following notice: The DC_L Curtailed to 70 MW's 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 |
| Sep 19 2019 14:23:14 CST | ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 13:24 09/19/2019 through 23:59 09/26/2019 due to a forced outage. | Operational Information | Cancelled |
| Sep 19 2019 14:20:45 CST | ERCOT has cancelled the following notice: The DC_L Curtail to 0 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 |
| Sep 19 2019 13:50:50 CST | ERCOT has cancelled the following notice: ERCOT has been notified that the Laredo DC Tie has been de rated to 70 MW Export due to ramping issues until further notice. | Operational Information | Cancelled |
| Sep 19 2019 13:45:25 CST | DC Tie Curtailment Notice: The DC_L Curtail to 0 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 |
| Sep 19 2019 13:34:37 CST | DC Tie Outage: The Laredo DC Tie will be unavailable from 13:24 09/19/2019 through 23:59 09/26/2019 due to a forced outage. | Operational Information | Active |
| Sep 19 2019 11:52:58 CST | ERCOT has been notified that the Laredo DC Tie has been de rated to 70 MW Export due to ramping issues until further notice. | Operational Information | Active |
| Sep 19 2019 11:40:51 CST | 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 |
| Sep 19 2019 11:35:17 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 |
| Sep 19 2019 09:36:04 CST | DC Tie Curtailment Notice: The DC_L Curtailed to 70 MW's 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 |
| Sep 19 2019 08:56:07 CST | 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 |
| Sep 19 2019 08:55:56 CST | ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 19:50 09/18/2019 through 12:00 09/19/2019 due to a forced outage. | Operational Information | Cancelled |
| Sep 19 2019 08:46:39 CST | The Daily RSASM for Thursday September 19, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 19 2019 02:33:51 CST | No sudden loss of generation greater than 450 MW occurred on September 18, 2019. | Operational Information | Active |
| Sep 19 2019 00:11:23 CST | At 00:05 ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 15:00 through 17:00. ERCOT is requesting all QSE's to update their COPs. | Operational Information | Active |
| Sep 18 2019 23:37:31 CST | DC Tie Outage: The Laredo DC Tie will be unavailable from 19:50 09/18/2019 through 12:00 09/19/2019 due to a forced outage. | Operational Information | Active |
| Sep 18 2019 23:36:38 CST | ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 19:50 09/18/2019 through 23:59 09/18/2019 due to a forced outage. | Operational Information | Cancelled |
| Sep 18 2019 22:02:02 CST | ERCOT has cancelled the following notice: The Eagle Pass DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to one or more transmission security violations that would be fully or partially resolved by the curtailment of DC Tie Load. | DC Tie Curtailment Notice | Cancelled |
| Sep 18 2019 20:23:11 CST | DC Tie Outage: The Laredo DC Tie will be unavailable from 19:50 09/18/2019 through 23:59 09/18/2019 due to a forced outage. | Operational Information | Active |
| Sep 18 2019 20:07:56 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 |
| Sep 18 2019 18:05:27 CST | ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 18:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Cancelled |
| Sep 18 2019 15:28:52 CST | DC Tie Curtailment Notice: The Eagle Pass DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to one or more transmission security violations that would be fully or partially resolved by the curtailment of DC Tie Load. | DC Tie Curtailment Notice | Active |
| Sep 18 2019 14:00:40 CST | DAM is complete, DRUC will begin at 15:05. | Operational Information | Active |
| Sep 18 2019 13:23:57 CST | ERCOT has postponed the deadline for posting of the DAM Solution for Operating Day 9/19/2019 due to long iteration run time. | Advisory | Active |
| Sep 18 2019 08:45:17 CST | The Daily RSASM for Wednesday September 18, 2019 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Sep 18 2019 06:06:11 CST | ERCOT has cancelled the following notice: The East DC Tie will be unavailable from 07:00 09/18/2019 through 17:00 09/18/2019 due to a planned outage. | Operational Information | Cancelled |
| Sep 18 2019 05:00:15 CST | Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 18:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Active |
| Sep 18 2019 00:30:37 CST | No sudden loss of generation greater than 450 MW occurred on September 17, 2019. | Operational Information | Active |
| Sep 17 2019 17:04:51 CST | ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 15:00 through 17:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Cancelled |
| Sep 17 2019 14:00:53 CST | DAM is complete, DRUC will begin at 15:05. | Operational Information | Active |
| Sep 17 2019 13:23:54 CST | ERCOT has postponed the deadline for posting of the DAM Solution for Operating Day 09/18/2019 until 14:30 due to internal issue that has been resolved. | Advisory | Active |
| Sep 17 2019 08:45:26 CST | The Daily RSASM for Tuesday September 17, 2019 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Sep 17 2019 07:08:04 CST | DC Tie Outage: The East DC Tie will be unavailable from 07:00 09/18/2019 through 17:00 09/18/2019 due to a planned outage. | Operational Information | Active |
| Sep 17 2019 05:29:00 CST | Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 15:00 through 17:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Active |
| Sep 17 2019 03:11:26 CST | No sudden loss of generation greater than 450 MW occurred on September 16, 2019. | Operational Information | Active |
| Sep 16 2019 17:39:36 CST | ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 17:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Cancelled |
| Sep 16 2019 08:45:31 CST | The Daily RSASM for Monday September 16, 2019 will not be occurring due to zero participating QSEs | Operational Information | Active |
| Sep 16 2019 05:34:06 CST | Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 17:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Active |
| Sep 16 2019 00:00:12 CST | No sudden loss of generation greater than 450 MW occurred on September 15, 2019. | Operational Information | Active |
| Sep 15 2019 08:48:25 CST | The Daily RSASM for Sunday September 15, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 15 2019 04:28:43 CST | ERCOT has cancelled the following notice: ERCOT as of 1600 will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. | Operational Information | Cancelled |
| Sep 15 2019 04:28:28 CST | ERCOT will be working from the primary control center until further notice, use the OPX numbers for Taylor. | Operational Information | Active |
| Sep 15 2019 00:03:15 CST | No sudden loss of generation greater than 450 MW occurred on September 14, 2019. | Operational Information | Active |
| Sep 14 2019 18:02:08 CST | ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 15:00 through 18:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Cancelled |
| Sep 14 2019 17:21:53 CST | ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW | Advisory | Cancelled |
| Sep 14 2019 16:47:41 CST | ERCOT as of 1600 will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. | Operational Information | Active |
| Sep 14 2019 14:46:05 CST | Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW | Advisory | Active |
| Sep 14 2019 08:49:14 CST | The Daily RSASM for Saturday September 14, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 14 2019 04:49:12 CST | Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 15:00 through 18:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Active |
| Sep 14 2019 00:00:21 CST | No sudden loss of generation greater than 450 MW occurred on September 13, 2019. | Operational Information | Active |
| Sep 13 2019 18:02:03 CST | ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 18:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Cancelled |
| Sep 13 2019 18:02:02 CST | ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 18:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Cancelled |
| Sep 13 2019 08:49:15 CST | The Daily RSASM for Friday September 13, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 13 2019 05:31:28 CST | Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 18:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Active |
| Sep 13 2019 00:21:44 CST | No sudden loss of generation greater than 450 MW occurred on September 12, 2019. | Operational Information | Active |
| Sep 12 2019 08:49:11 CST | The Daily RSASM for Thursday September 12, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 12 2019 00:09:14 CST | No sudden loss of generation greater than 450 MW occurred on September 11, 2019. | Operational Information | Active |
| Sep 11 2019 14:00:09 CST | DC Tie Outage: The DC E DC Tie will be unavailable from 07:00 09/18/2019 through 17:00 09/18/2019 due to a planned outage. | Operational Information | Active |
| Sep 11 2019 08:57:35 CST | The Daily RSASM for Wednesday, September 11, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 11 2019 00:36:21 CST | No sudden loss of generation greater than 450 MW occurred on September 10, 2019. | Operational Information | Active |
| Sep 10 2019 08:47:22 CST | The Daily RSASM for Tuesday, September 10, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 10 2019 00:15:45 CST | No sudden loss of generation greater than 450 MW occurred on September 09, 2019. | Operational Information | Active |
| Sep 09 2019 08:46:50 CST | The Daily RSASM for Monday, September 9, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 09 2019 01:04:57 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 01:15 for operating day 09/09/2019 for HE02-11 for 14.2 MW REGUP. | Operational Information | Cancelled |
| Sep 09 2019 00:37:10 CST | No sudden loss of generation greater than 450 MW occurred on September 08, 2019. | Operational Information | Active |
| Sep 08 2019 23:15:11 CST | ERCOT will execute a SASM at 01:15 for operating day 09/09/2019 for HE02-11 for 14.2 MW REGUP. | Operational Information | Active |
| Sep 08 2019 08:46:27 CST | The Daily RSASM for Sunday, September 8, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 08 2019 00:42:17 CST | No sudden loss of generation greater than 450 MW occurred on September 07, 2019. | Operational Information | Active |
| Sep 07 2019 19:20:22 CST | ERCOT has cancelled the following notice: At 09:00 , ERCOT is issuing an OCN effective Thursday Sept. 5, Friday Sept. 6, and Saturday Sept. 7 for the extreme hot weather with forecasted temperatures to be above 103°F or 94°F in the North Central and South Central weather zones. | Operational Information | Cancelled |
| Sep 07 2019 08:46:16 CST | The Daily RSASM for Saturday, September 7, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 07 2019 00:18:11 CST | No sudden loss of generation greater than 450 MW occurred on September 06, 2019. | Operational Information | Active |
| Sep 06 2019 18:30:07 CST | ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW | Advisory | Cancelled |
| Sep 06 2019 18:08:46 CST | ERCOT has cancelled the following notice: ERCOT has issued an appeal through the public news media for voluntary energy conservation for Thursday, September 05, 2019 and Friday, September 06, 2019 between 2:00 P.M. and 7:00 P.M. | Operational Information | Cancelled |
| Sep 06 2019 18:08:11 CST | ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 18:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Cancelled |
| Sep 06 2019 14:40:56 CST | Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW | Advisory | Active |
| Sep 06 2019 08:46:19 CST | The Daily RSASM for Friday, September 6, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 06 2019 04:50:00 CST | Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 18:00. ERCOT is requesting all QSE's to update their COPs. | OCN | Active |
| Sep 06 2019 00:02:30 CST | No sudden loss of generation greater than 450 MW occurred on September 05, 2019. | Operational Information | Active |
| Sep 05 2019 19:02:29 CST | ERCOT has cancelled the following notice: At 05:00 ERCOT is issuing an OCN for 9-5-2019 for a projected Reserve Capacity Shortage for HE 14 to HE 19. ERCOT may and will commit Resources as needed. | Operational Information | Cancelled |
| Sep 05 2019 08:46:08 CST | The Daily RSASM for Thursday, September 5, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 05 2019 05:06:43 CST | At 05:00 ERCOT is issuing an OCN for 9-5-2019 for a projected Reserve Capacity Shortage for HE 14 to HE 19. ERCOT may and will commit Resources as needed. | Operational Information | Active |
| Sep 05 2019 00:07:10 CST | No sudden loss of generation greater than 450 MW occurred on September 04, 2019 | Operational Information | Active |
| Sep 04 2019 14:30:34 CST | ERCOT has issued an appeal through the public news media for voluntary energy conservation for Thursday, September 05, 2019 and Friday, September 06, 2019 between 2:00 P.M. and 7:00 P.M. | Operational Information | Active |
| Sep 04 2019 08:48:24 CST | The Daily RSASM for Wednesday September 4, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 04 2019 00:16:51 CST | No sudden loss of generation greater than 450 MW occurred on September 03, 2019. | Operational Information | Active |
| Sep 03 2019 16:45:44 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| Sep 03 2019 09:03:39 CST | At 09:00 , ERCOT is issuing an OCN effective Thursday Sept. 5, Friday Sept. 6, and Saturday Sept. 7 for the extreme hot weather with forecasted temperatures to be above 103°F or 94°F in the North Central and South Central weather zones. | Operational Information | Active |
| Sep 03 2019 08:48:06 CST | The Daily RSASM for Tuesday September 3, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 03 2019 00:05:01 CST | No sudden loss of generation greater than 450 MW occurred on September 02, 2019. | Operational Information | Active |
| Sep 02 2019 08:47:36 CST | The Daily RSASM for Monday September 2, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| Sep 02 2019 01:24:44 CST | No sudden loss of generation greater than 450 MW occurred on September 01, 2019 | Operational Information | Active |
| Sep 01 2019 16:59:23 CST | ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW | Advisory | Cancelled |
| Sep 01 2019 15:06:37 CST | Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW | Advisory | Active |
| Sep 01 2019 08:48:04 CST | The Daily RSASM for Sunday, September 01, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |