Operations Messages

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

Mar 2014 Apr 2014 May 2014 Jun 2014 Jul 2014 Aug 2014
Date Message Type Status
Aug 27 2014 08:47:27 CST Daily Reconfiguration SASM for Wednesday, August 27, 2013 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 27 2014 07:45:50 CST No sudden loss of generation greater than 450 MW occurred on 08/26/14. Operational Information Active
Aug 26 2014 08:48:19 CST Daily Reconfiguration SASM for Tuesday, August 26, 2013 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 26 2014 07:40:45 CST No sudden loss of generation greater than 450 MW occurred on 08/25/14. Operational Information Active
Aug 25 2014 08:48:57 CST Daily Reconfiguration SASM for Monday, August 24, 2013 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 25 2014 06:38:16 CST No sudden loss of generation greater than 450 MW occurred on 08/24/14. Operational Information Active
Aug 24 2014 14:01:00 CST ERCOT has cancelled the following notice: The EAST DC Tie will be unavailable from 11:31 08/24/2014 through 12:15 08/24/2014 due to a forced outage. Operational Information Cancelled
Aug 24 2014 11:39:13 CST DC Tie Outage: The EAST DC Tie will be unavailable from 11:31 08/24/2014 through 12:15 08/24/2014 due to a forced outage. Operational Information Active
Aug 24 2014 08:49:06 CST Daily Reconfiguration SASM for Sunday, August 24, 2013 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 24 2014 06:56:44 CST No sudden loss of generation greater than 450 MW occurred on 08/23/14. Operational Information Active
Aug 23 2014 08:48:02 CST Daily Reconfiguration SASM for Saturday, August 23, 2013 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 23 2014 07:29:22 CST On 08/22/14, a loss of generation occurred at 15:03 totaling 527 MW. Frequency declined to 59.936 Hz, ERCOT load was 64, 738 MW. Operational Information Active
Aug 22 2014 09:04:59 CST Daily Reconfiguration SASM for Friday, August 22, 2013 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 22 2014 07:13:46 CST No sudden loss of generation greater than 450 MW occurred on 08/21/14. Operational Information Active
Aug 21 2014 08:58:07 CST Daily Reconfiguration SASM for Thursday, August 21, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 21 2014 07:27:16 CST No sudden loss of generation greater than 450 MW occurred on 08/20/14. Operational Information Active
Aug 20 2014 14:11:02 CST ERCOT has cancelled the following notice: The Eagle Pass DC Tie will be unavailable from 00:15 08/20/2014 through 23:59 08/20/2014 due to a forced outage. Operational Information Cancelled
Aug 20 2014 12:14:24 CST ERCOT has cancelled the following notice: The Eagle Pass DC Tie will be unavailable from 00:15 08/20/2014 through 23:59 08/20/2014 due to a forced outage. Operational Information Cancelled
Aug 20 2014 12:14:15 CST ERCOT has cancelled the following notice: The Eagle Pass DC Tie will be unavailable from 00:15 08/20/2014 through 23:59 08/20/2014 due to a forced outage. Operational Information Cancelled
Aug 20 2014 08:52:34 CST The daily Reconfiguration SASM will not be occurring due to zero participating QSE's Operational Information Active
Aug 20 2014 07:46:33 CST No sudden loss of generation greater than 450 MW occurred on 08/19/14. Operational Information Active
Aug 20 2014 05:02:32 CST ERCOT has cancelled the following notice: At 18:36 on Aug 17 2014, ERCOT will perform a site failover of its Energy and Market Management Systems from 18:36 through 19:06 During this time, market communications will be unavailable for about 30 minutes, and real-time communications will be unavailable for about 5 minutes. All systems should re-establish communications automatically. This event will be preceded by a hot-line call shortly before the start of the failover. OCN Cancelled
Aug 20 2014 00:32:31 CST DC Tie Outage: The Eagle Pass DC Tie will be unavailable from 00:15 08/20/2014 through 23:59 08/20/2014 due to a forced outage. Operational Information Active
Aug 19 2014 17:35:15 CST ERCOT has cancelled the following notice: LONG DESCRIPTION: ERCOT will be performing un-planned maintenance on the Taylor environments starting on August 18, 2014, from 02:00 A.M. This will cause an outage of the Taylor ICCP servers. Maintenance completion time will be notified in a later notice. ACTION REQUIRED: Qualified Scheduling Entities (QSEs) with Resources will need to verify they are receiving telemetry from the Bastrop ICCP servers to receive dispatch instructions during the outage. Transmission Service Providers (TSPs) who receive data for their operations will also need to receive their telemetry from the Bastrop servers during the outage. Operational Information Cancelled
Aug 19 2014 11:38:08 CST ERCOT has cancelled the following notice: The DC_S DC Tie will be unavailable from 23:17 08/18/2014 through 23:00 08/25/2014 due to a forced outage. Operational Information Cancelled
Aug 19 2014 08:50:38 CST Daily Reconfiguration SASM for Tuesday, August 19, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 19 2014 07:33:03 CST No sudden loss of generation greater than 450 MW occurred on 08/18/14. Operational Information Active
Aug 19 2014 00:32:11 CST DC Tie Outage: The DC_S DC Tie will be unavailable from 23:17 08/18/2014 through 23:00 08/25/2014 due to a forced outage. Operational Information Active
Aug 18 2014 09:58:37 CST ERCOT has extended the deadline for DAM submissions for Operating Day 08/19/2014 due to internal server connection issue that has been resolved. Please continue to make submissions until 10:30 Advisory Active
Aug 18 2014 08:27:33 CST No sudden loss of generation greater than 450 MW occurred on 08/17/14. Operational Information Active
Aug 17 2014 22:56:43 CST LONG DESCRIPTION: ERCOT will be performing un-planned maintenance on the Taylor environments starting on August 18, 2014, from 02:00 A.M. This will cause an outage of the Taylor ICCP servers. Maintenance completion time will be notified in a later notice. ACTION REQUIRED: Qualified Scheduling Entities (QSEs) with Resources will need to verify they are receiving telemetry from the Bastrop ICCP servers to receive dispatch instructions during the outage. Transmission Service Providers (TSPs) who receive data for their operations will also need to receive their telemetry from the Bastrop servers during the outage. Operational Information Active
Aug 17 2014 20:13:48 CST ERCOT has cancelled the following notice: Advisory issued due to ERCOT’s Voltage Security Assessment Tool is currently unavailable. Advisory Cancelled
Aug 17 2014 19:13:27 CST ERCOT has cancelled the following notice: ERCOT has been notified that the DC_N DC Tie has been derated to 42 MW Import/Export due to control issues until further notice. Operational Information Cancelled
Aug 17 2014 18:59:36 CST Advisory issued due to ERCOT’s Voltage Security Assessment Tool is currently unavailable. Advisory Active
Aug 17 2014 18:30:38 CST EMMS Site Failover: At 18:36 on Aug 17 2014, ERCOT will perform a site failover of its Energy and Market Management Systems from 18:36 through 19:06 During this time, market communications will be unavailable for about 30 minutes, and real-time communications will be unavailable for about 5 minutes. All systems should re-establish communications automatically. This event will be preceded by a hot-line call shortly before the start of the failover. OCN Active
Aug 17 2014 08:53:50 CST ERCOT has cancelled the following notice: ERCOT will execute a SASM at 16:00 for operating day August 16, 2014 for HE18-HE24 for 20MW REGUP for each hour. Operational Information Cancelled
Aug 17 2014 08:48:55 CST Daily Reconfiguration SASM for Sunday, August 17, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 17 2014 00:00:29 CST No sudden loss of generation greater than 450 MW occurred on 08/16/14. Operational Information Active
Aug 16 2014 15:27:19 CST ERCOT will execute a SASM at 16:00 for operating day August 16, 2014 for HE18-HE24 for 20MW REGUP for each hour. Operational Information Active
Aug 16 2014 11:44:23 CST ERCOT has been notified that the DC_N DC Tie has been derated to 42 MW Import/Export due to control issues until further notice. Operational Information Active
Aug 16 2014 08:47:00 CST Daily Reconfiguration SASM for Saturday, August 16, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 16 2014 07:03:37 CST ERCOT has cancelled the following notice: ERCOT will execute a SASM at 06:10 for operating day August 16, 2014 for HE10-HE17 for 20MW REGUP for each hour. Operational Information Cancelled
Aug 16 2014 05:38:20 CST ERCOT will execute a SASM at 06:10 for operating day August 16, 2014 for HE10-HE17 for 20MW REGUP for each hour. Operational Information Active
Aug 16 2014 05:37:17 CST ERCOT has cancelled the following notice: ERCOT will execute a SASM at 07:10 for operating day August 16, 2014 for HE10-HE17 for 20MW REGUP for each hour. Operational Information Cancelled
Aug 16 2014 05:36:49 CST ERCOT will execute a SASM at 07:10 for operating day August 16, 2014 for HE10-HE17 for 20MW REGUP for each hour. Operational Information Active
Aug 16 2014 00:01:53 CST No sudden loss of generation greater than 450 MW occurred on 08/15/14. Operational Information Active
Aug 15 2014 08:47:04 CST Daily reconfiguration SASM for Friday, August 15, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 15 2014 07:13:36 CST No sudden loss of generation greater than 450 MW occurred on 08/14/14. Operational Information Active
Aug 14 2014 15:34:07 CST ERCOT has cancelled the following notice: The Eagle Pass DC Tie will be unavailable from 08:00 08/14/2014 through 18:00 08/14/2014 due to a planned outage. Operational Information Cancelled
Aug 14 2014 08:59:02 CST Daily reconfiguration SASM for Thursday, August 14, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 14 2014 07:47:58 CST On 8/13/14, a sudden loss of generation occurred at 10:46 totaling 489 MW. Frequency declined to 59.904 Hz, ERCOT load was 47, 516 MW. Operational Information Active
Aug 13 2014 13:29:03 CST ERCOT has cancelled the following notice: The Eagle Pass DC Tie will be unavailable from 13:00 08/08/2014 through 15:00 08/13/2014 due to a forced outage. Operational Information Cancelled
Aug 13 2014 13:28:10 CST ERCOT has cancelled the following notice: The Eagle Pass HVDC Tie will remain OUT OF SERVICE until repairs effected on 08/14/2014 with an expected availability time of 1800 hrs. Operational Information Cancelled
Aug 13 2014 08:50:07 CST Daily reconfiguration SASM for Wednesday, August 13, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 13 2014 07:45:38 CST No sudden loss of generation greater than 450 MW occurred on 08/12/14. Operational Information Active
Aug 12 2014 08:51:34 CST Daily reconfiguration SASM for Tuesday, August 12, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 12 2014 07:46:08 CST No sudden loss of generation greater than 450 MW occurred on 08/11/14. Operational Information Active
Aug 11 2014 10:44:05 CST ERCOT has cancelled the following notice: Daily reconfiguration SASM for Monday, August 11, 2014 will not be occurring due to zero participating QSEs. Operational Information Cancelled
Aug 11 2014 10:39:08 CST The Eagle Pass HVDC Tie will remain OUT OF SERVICE until repairs effected on 08/14/2014 with an expected availability time of 1800 hrs. Operational Information Active
Aug 11 2014 09:27:11 CST No sudden loss of generation greater than 450 MW occurred on 08/10/14. Operational Information Active
Aug 11 2014 08:52:57 CST Daily reconfiguration SASM for Monday, August 11, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 11 2014 08:52:30 CST DC Tie Outage: The Eagle Pass DC Tie will be unavailable from 08:00 08/14/2014 through 18:00 08/14/2014 due to a planned outage. Operational Information Active
Aug 10 2014 08:47:19 CST Daily reconfiguration SASM Sunday, August 10, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 10 2014 00:03:05 CST No sudden loss of generation greater than 450 MW occurred on 08/09/14. Operational Information Active
Aug 09 2014 08:52:59 CST Daily reconfiguration SASM for Saturday, August 9, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 09 2014 00:10:51 CST No sudden loss of generation greater than 450 MW occurred on 08/08/14. Operational Information Active
Aug 08 2014 13:08:24 CST ERCOT has cancelled the following notice: The South (Eagle Pass) DC Tie will be unavailable from 00:45 08/06/2014 through 23:59 08/08/2014 due to a forced outage. Operational Information Cancelled
Aug 08 2014 13:08:01 CST DC Tie Outage: The Eagle Pass DC Tie will be unavailable from 13:00 08/08/2014 through 15:00 08/13/2014 due to a forced outage. Operational Information Active
Aug 08 2014 08:46:44 CST Daily reconfiguration SASM for Friday, August 8, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 08 2014 07:51:12 CST No sudden loss of generation greater than 450 MW occurred on 08/07/14. Operational Information Active
Aug 08 2014 05:10:03 CST ERCOT is working from its Primary Control Center. Operational Information Active
Aug 08 2014 05:08:53 CST ERCOT has cancelled the following notice: ERCOT is working from alternate control center. Operational Information Cancelled
Aug 07 2014 17:09:59 CST ERCOT has cancelled the following notice: @ 0100 Ercot is issuing an OCN due to a projected reserve capacity shortage for hours 1400-2100 on 8-7-14. OCN Cancelled
Aug 07 2014 17:05:29 CST ERCOT is working from alternate control center. Operational Information Active
Aug 07 2014 07:23:55 CST No sudden loss of generation greater than 450 MW occurred on 08/06/14. Operational Information Active
Aug 07 2014 01:05:12 CST @ 0100 Ercot is issuing an OCN due to a projected reserve capacity shortage for hours 1400-2100 on 8-7-14. OCN Active
Aug 06 2014 13:19:25 CST The Benbrook SPS #41 and SPS #42 have been retired. Operational Information Active
Aug 06 2014 11:19:12 CST ERCOT has cancelled the following notice: The Railroad DC Tie will be unavailable from 19:00 08/04/2014 through 23:59 08/19/2014 due to a forced outage. Operational Information Cancelled
Aug 06 2014 09:20:52 CST DC Tie Outage: The South (Eagle Pass) DC Tie will be unavailable from 00:45 08/06/2014 through 23:59 08/08/2014 due to a forced outage. Operational Information Active
Aug 06 2014 08:48:38 CST Daily reconfiguration SASM for Wednesday, August 6, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 06 2014 07:12:15 CST No sudden loss of generation greater than 450 MW occurred on 08/05/14. Operational Information Active
Aug 06 2014 06:22:35 CST ERCOT has cancelled the following notice: Barney Davis SPS has been taken out of service. Operational Information Cancelled
Aug 06 2014 06:22:31 CST ERCOT has cancelled the following notice: Barney Davis SPS has been taken out of service. Operational Information Cancelled
Aug 06 2014 01:00:13 CST DC Tie Outage: The Eagle Pass DC_S DC Tie will be unavailable from 00:45 08/06/2014 through 00:00 08/07/2014 due to a forced outage. Operational Information Active
Aug 06 2014 00:57:47 CST ERCOT has cancelled the following notice: Currently unable to ramp DC_S Eagle Pass to 0 mws due to failed controller. Operational Information Cancelled
Aug 05 2014 23:28:43 CST Currently unable to ramp DC_S Eagle Pass to 0 mws due to failed controller. Operational Information Active
Aug 05 2014 15:22:44 CST ERCOT has cancelled the following notice: Barney Davis SPS has been taken out of service. Operational Information Cancelled
Aug 05 2014 15:22:28 CST ERCOT has cancelled the following notice: Barney Davis SPS has been taken out of service. Operational Information Cancelled
Aug 05 2014 15:22:15 CST ERCOT has cancelled the following notice: Barney Davis SPS has been taken out of service. Operational Information Cancelled
Aug 05 2014 15:21:30 CST Barney Davis SPS has been taken out of service. Operational Information Active
Aug 05 2014 15:20:04 CST Barney Davis SPS has been taken out of service. Operational Information Active
Aug 05 2014 15:17:35 CST ERCOT has cancelled the following notice: The LCRA Parkway SPS has been taken out of service for relay testing. Operational Information Cancelled
Aug 05 2014 15:13:03 CST DC Tie Outage: The Railroad DC Tie will be unavailable from 19:00 08/04/2014 through 23:59 08/19/2014 due to a forced outage. Operational Information Active
Aug 05 2014 11:56:49 CST DC Tie Outage: The Railroad DC Tie will be unavailable from 19:00 08/04/2014 through 23:59 08/05/2014 due to a planned outage. Operational Information Active
Aug 05 2014 09:29:28 CST ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 22:00. ERCOT is requesting all QSE's to update their COPs. OCN Cancelled
Aug 05 2014 09:14:40 CST The LCRA Parkway SPS has been taken out of service for relay testing. Operational Information Active
Aug 05 2014 08:49:28 CST Daily reconfiguration SASM for Tuesday, August 5, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 05 2014 08:35:18 CST On 8/04/14, a loss of generation occurred from 14:21 – 14:27 totaling 1, 620 MW. Frequency declined to 59.799 Hz, ERCOT load was 57, 958 MW. Operational Information Active
Aug 05 2014 01:05:28 CST Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 22:00. ERCOT is requesting all QSE's to update their COPs. OCN Active
Aug 04 2014 21:03:16 CST ERCOT has cancelled the following notice: The Railroad DC Tie will be unavailable from 19:00 08/04/2014 through 23:59 08/04/2014 due to a forced outage. Operational Information Cancelled
Aug 04 2014 21:03:12 CST ERCOT has cancelled the following notice: The Railroad DC Tie will be unavailable from 19:00 08/04/2014 through 23:59 08/04/2014 due to a forced outage. Operational Information Cancelled
Aug 04 2014 21:02:52 CST DC Tie Outage: The Railroad DC Tie will be unavailable from 19:00 08/04/2014 through 13:00 08/05/2014 due to a forced outage. Operational Information Active
Aug 04 2014 19:39:33 CST ERCOT has cancelled the following notice: The Railroad DC Tie will be unavailable from 19:00 08/04/2014 through 23:59 08/04/2014 due to a forced outage. Operational Information Cancelled
Aug 04 2014 19:37:31 CST DC Tie Outage: The Railroad DC Tie will be unavailable from 19:00 08/04/2014 through 23:59 08/04/2014 due to a forced outage. Operational Information Active
Aug 04 2014 19:14:19 CST DC Tie Outage: The Railroad DC Tie will be unavailable from 19:00 08/04/2014 through 23:59 08/04/2014 due to a forced outage. Operational Information Active
Aug 04 2014 13:18:07 CST ERCOT has cancelled the following notice: The Laredo VFT DC Tie will be unavailable from 11:15 08/02/2014 through 23:59 08/04/2014 due to a forced outage. Operational Information Cancelled
Aug 04 2014 08:58:05 CST Daily reconfiguration SASM for Monday, August 4, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 04 2014 07:57:47 CST No sudden loss of generation greater than 450 MW occurred on 08/03/14. Operational Information Active
Aug 03 2014 08:59:10 CST DAILY RECONFIGURATION SASM FOR SUNDAY, AUG 03, 2014 WILL NOT BE OCCURRING DUE TO ZERO PARTICIPATING QSES’S. Operational Information Active
Aug 03 2014 05:49:58 CST No sudden loss of generation greater than 450 MW occurred on 08/02/14. Operational Information Active
Aug 02 2014 13:48:00 CST DC Tie Outage: The Laredo VFT DC Tie will be unavailable from 11:15 08/02/2014 through 23:59 08/04/2014 due to a forced outage. Operational Information Active
Aug 02 2014 13:46:50 CST ERCOT has cancelled the following notice: The Laredo VFT DC Tie will be unavailable from 11:15 08/02/2014 through 23:59 08/02/2014 due to a forced outage. Operational Information Cancelled
Aug 02 2014 11:20:27 CST DC Tie Outage: The Laredo VFT DC Tie will be unavailable from 11:15 08/02/2014 through 23:59 08/02/2014 due to a forced outage. Operational Information Active
Aug 02 2014 08:47:08 CST Daily Reconfiguration SASM for Saturday, August 02, 2014 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 02 2014 05:32:11 CST No sudden loss of generation greater than 450 MW occurred on 08/01/14. Operational Information Active
Aug 01 2014 08:57:17 CST DAILY RECONFIGURATION SASM FOR FRIDAY, AUGl 01, 2014 WILL NOT BE OCCURRING DUE TO ZERO PARTICIAPATING QSES’S. Operational Information Active
Aug 01 2014 07:22:13 CST No sudden loss of generation greater than 450 MW occurred on 07/31/14. Operational Information Active