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.)

Apr 2019 May 2019 Jun 2019 Jul 2019 Aug 2019 Sep 2019
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