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.)

Nov 2014 Dec 2014 Jan 2015 Feb 2015 Mar 2015 Apr 2015
Date Message Type Status
Apr 26 2015 01:13:40 CST No sudden loss of generation greater than 450 MW occurred on 04/25/2015. Operational Information Active
Apr 25 2015 08:47:12 CST Daily reconfiguration SASM for Saturday, April 25, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 25 2015 01:17:44 CST No sudden loss of generation greater than 450 MW occurred on 04/24/2015. Operational Information Active
Apr 25 2015 00:31:47 CST DC Tie Outage: The Laredo DC Tie will be unavailable from 22:47 04/24/2015 through 00:00 04/29/2015 due to a forced outage. Operational Information Active
Apr 24 2015 23:07:50 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to ERCOTs Voltage Security Assessment Tool was unavailable from 20:42-21:19. Operational Information Cancelled
Apr 24 2015 21:30:19 CST ERCOT is issuing an Advisory due to ERCOTs Voltage Security Assessment Tool was unavailable from 20:42-21:19. Operational Information Active
Apr 24 2015 20:21:35 CST The East DC Tie is now available for service. Operational Information Active
Apr 24 2015 20:20:32 CST ERCOT has cancelled the following notice: The East DC Tie will be unavailable from 15:47 04/24/2015 through 20:00 04/24/2015 due to a forced outage. Operational Information Cancelled
Apr 24 2015 19:57:09 CST DC Tie Outage: The East DC Tie will be unavailable from 20:00 04/24/2015 through 21:00 04/24/2015 due to a forced outage. Operational Information Active
Apr 24 2015 15:48:30 CST DC Tie Outage: The East DC Tie will be unavailable from 15:47 04/24/2015 through 20:00 04/24/2015 due to a forced outage. Operational Information Active
Apr 24 2015 15:47:29 CST ERCOT has cancelled the following notice: The East DC Tie will be unavailable from 07:30 04/20/2015 through 16:00 04/24/2015 due to a planned outage. Operational Information Cancelled
Apr 24 2015 08:46:07 CST Daily reconfiguration SASM for Friday, April 24, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 24 2015 00:11:21 CST No sudden loss of generation greater than 450 MW occurred on 04/23/2015. Operational Information Active
Apr 23 2015 08:48:33 CST Daily reconfiguration SASM for Thursday, April 23, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 23 2015 00:28:46 CST No sudden loss of generation greater than 450 MW occurred on 04/22/2015. Operational Information Active
Apr 22 2015 12:13:19 CST ERCOT has cancelled the following notice: The South DC Tie will be unavailable from 09:00 04/20/2015 through 16:00 04/24/2015 due to a planned outage. Operational Information Cancelled
Apr 22 2015 08:50:47 CST Daily reconfiguration SASM for Wednesday, April 22, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 22 2015 00:12:19 CST No sudden loss of generation greater than 450 MW occurred on 04/21/2015. Operational Information Active
Apr 21 2015 08:49:34 CST Daily reconfiguration SASM for Tuesday, April 21, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 21 2015 00:08:21 CST No sudden loss of generation greater than 450 MW occurred on 04/20/2015. Operational Information Active
Apr 20 2015 13:30:25 CST The North DC Tie is now available for service. Operational Information Active
Apr 20 2015 13:15:52 CST DC Tie Outage: The East DC Tie will be unavailable from 07:30 04/20/2015 through 16:00 04/24/2015 due to a planned outage. Operational Information Active
Apr 20 2015 13:13:26 CST DC Tie Outage: The North DC Tie will be unavailable from 07:30 04/20/2015 through 16:00 04/24/2015 due to a planned outage. Operational Information Active
Apr 20 2015 13:06:30 CST The Railroad DC Tie is derated to 150 MW in either direction thru 05/04/15 at 1700 due to maintenance. Operational Information Active
Apr 20 2015 10:31:01 CST DC Tie Outage: The South DC Tie will be unavailable from 09:00 04/20/2015 through 16:00 04/24/2015 due to a planned outage. Operational Information Active
Apr 20 2015 08:52:38 CST Daily reconfiguration SASM for Monday, April 20, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 20 2015 03:21:42 CST No sudden loss of generation greater than 450 MW occurred on 04/19/2015 Operational Information Active
Apr 20 2015 02:08:15 CST ERCOT Regulation and Non-Spin Requirements for May 2015 Regulation UP HE-01:00 546 mw, HE-02:00 341 mw, HE-03:00 307 mw, HE-04:00 332 mw, HE-05:00 344 mw, HE-06:00 504 mw, HE-07:00 745 mw, HE-08:00 418 mw, HE-09:00 424 mw, HE-10:00 395 mw, HE-11:00 438 mw, HE-12:00 523 mw, HE-13:00 427 mw, HE-14:00 383 mw, HE-15:00 358 mw, HE-16:00 478 mw, HE-17:00 372 mw, HE-18:00 300 mw, HE-19:00 312 mw, HE-20:00 458 mw, HE-21:00 419 mw, HE-22:00 474 mw, HE-23:00 727 mw, HE-24:00 671 mw. Regulation Down HE-01:00 467 mw, HE-02:00 333 mw, HE-03:00 285 mw, HE-04:00 305 mw, HE-05:00 357 mw, HE-06:00 669 mw, HE-07:00 534 mw, HE-08:00 386 mw, HE-09:00 395 mw, HE-10:00 336 mw, HE-11:00 407 mw, HE-12:00 365 mw, HE-13:00 292 mw, HE-14:00 294 mw, HE-15:00 315 mw, HE-16:00 366 mw, HE-17:00 391 mw, HE-18:00 344 mw, HE-19:00 458 mw, HE-20:00 418 mw, HE-21:00 387 mw, HE-22:00 535 mw, HE-23:00 607 mw, HE-24:00 559 mw. NSRS Requirement- HE-01:00 to 10:00 1500 mw, HE-11:00 to 14:00 1285 mw, HE-15:00 to 24:00 1500 mw. RRS – 01:00 to 24:00 2800 mw. Operational Information Active
Apr 19 2015 08:48:57 CST Daily Reconfiguration SASM for Sunday, April 19, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 19 2015 04:16:00 CST No sudden loss of generation greater than 450 MW occurred on 04/18/2015 Operational Information Active
Apr 18 2015 08:48:50 CST Daily Reconfiguration SASM for Saturday, April 18, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 18 2015 03:12:19 CST No sudden loss of generation greater than 450 MW occurred on 04/17/2015. Operational Information Active
Apr 17 2015 08:47:35 CST Daily Reconfiguration SASM for Friday, April 17, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 17 2015 04:32:54 CST ERCOT has cancelled the following notice: The South DC Tie will be unavailable from 09:00 04/20/2015 through 16:00 04/24/2015 due to a planned outage. Operational Information Cancelled
Apr 17 2015 02:11:57 CST No sudden loss of generation greater than 450 MW occurred on 04/16/2015. Operational Information Active
Apr 16 2015 08:47:58 CST Daily Reconfiguration SASM for Thursday, April 16, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 16 2015 02:54:12 CST No sudden loss of generation greater than 450 MW occurred on 04/15/2015. Operational Information Active
Apr 15 2015 08:46:11 CST Daily Reconfiguration SASM for Wednesday, April 15, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 15 2015 01:36:23 CST No sudden loss of generation greater than 450 MW occurred on 04/14/2015. Operational Information Active
Apr 14 2015 15:48:22 CST At 4:25 PM on 04/15/2015, ERCOT will perform planned site failover of its Energy Market Management Systems. During this time, market communications will be unavailable for about 45 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 beginning. Operational Information Active
Apr 14 2015 10:59:02 CST DC Tie Outage: The South DC Tie will be unavailable from 09:00 04/20/2015 through 16:00 04/24/2015 due to a planned outage. Operational Information Active
Apr 14 2015 08:46:02 CST Daily Reconfiguration SASM for Tuesday, April 14, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 14 2015 02:15:06 CST On April 13, 2015 a sudden loss of generation occurred at 1643 totaling 526 MW. Frequency declined to 59.869 Hz, ERCOT load was 42, 516 MW. Operational Information Active
Apr 13 2015 10:45:37 CST ERCOT has cancelled the following notice: The East DC Tie will be unavailable from 08:31 04/13/2015 through 16:00 04/13/2015 due to a forced outage. Operational Information Cancelled
Apr 13 2015 08:47:41 CST Daily Reconfiguration SASM for Monday, April 13, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 13 2015 08:36:24 CST DC Tie Outage: The East DC Tie will be unavailable from 08:31 04/13/2015 through 16:00 04/13/2015 due to a forced outage. Operational Information Active
Apr 13 2015 00:21:30 CST No sudden loss of generation greater than 450 MW occurred on 04/12/2015. Operational Information Active
Apr 12 2015 08:46:30 CST Daily Reconfiguration SASM for Sunday, April 12, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 12 2015 00:42:02 CST No sudden loss of generation greater than 450 MW occurred on 04/11/2015. Operational Information Active
Apr 11 2015 08:46:47 CST Daily Reconfiguration SASM for Saturday, April 11, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 11 2015 04:36:41 CST No sudden loss of generation greater than 450 MW occurred on 04/10/2015. Operational Information Active
Apr 11 2015 01:55:47 CST DC Tie Outage: The DC_R RAILROAD DC Tie will be unavailable from 01:51 04/11/2015 through 23:59 04/15/2015 due to a forced outage. Operational Information Active
Apr 10 2015 09:17:39 CST Daily Reconfiguration SASM for Friday, April 10, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 10 2015 04:52:08 CST ERCOT has cancelled the following notice: The Laredo VFT DC Tie will be unavailable from 07:00 04/06/2015 through 16:00 04/10/2015 due to a planned outage. Operational Information Cancelled
Apr 10 2015 04:26:15 CST On April 9, 2015 a sudden loss of generation occurred at 2123 totaling 583 MW. Frequency declined to 59.868 Hz, ERCOT load was 41, 500 MW. Operational Information Active
Apr 09 2015 08:46:59 CST Daily Reconfiguration SASM for Thursday, April 9, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 09 2015 03:18:55 CST No sudden loss of generation greater than 450 MW occurred on 04/08/2015 Operational Information Active
Apr 08 2015 08:49:17 CST Daily reconfiguration SASM for Wednesday, April 8, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 08 2015 03:52:20 CST No sudden loss of generation greater than 450 MW occurred on 04/07/2015. Operational Information Active
Apr 07 2015 19:38:30 CST ERCOT has cancelled the following notice: The DC_E tripped returning from outage and will need to be investigated before its return to service. Operational Information Cancelled
Apr 07 2015 17:56:40 CST ERCOT has cancelled the following notice: The EAST DC Tie will be unavailable from 08:00 04/06/2015 through 16:00 04/07/2015 due to a planned outage. Operational Information Cancelled
Apr 07 2015 17:56:05 CST ERCOT has cancelled the following notice: The DC_E DC Tie will be unavailable from 14:00 04/07/2015 through 16:00 04/07/2015 due to a planned outage. Operational Information Cancelled
Apr 07 2015 14:09:46 CST DC Tie Outage: The DC_E DC Tie will be unavailable from 14:00 04/07/2015 through 16:00 04/07/2015 due to a planned outage. Operational Information Active
Apr 07 2015 14:07:49 CST The DC_E tripped returning from outage and will need to be investigated before its return to service. Operational Information Active
Apr 07 2015 08:49:15 CST Daily reconfiguration SASM for Tuesday, April 7, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 07 2015 07:41:38 CST DC Tie Outage: The nORTH DC Tie will be unavailable from 08:00 04/13/2015 through 16:00 04/17/2015 due to a planned outage. Operational Information Active
Apr 07 2015 03:16:26 CST No sudden loss of generation greater than 450 MW occurred on 04/06/2015. Operational Information Active
Apr 06 2015 11:04:24 CST DC Tie Outage: The North DC Tie will be unavailable from 08:00 04/14/2015 through 16:00 04/17/2015 due to a planned outage. Operational Information Active
Apr 06 2015 08:47:41 CST Daily reconfiguration SASM for Monday, April 6, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 06 2015 08:29:50 CST DC Tie Outage: The EAST DC Tie will be unavailable from 08:00 04/06/2015 through 16:00 04/07/2015 due to a planned outage. Operational Information Active
Apr 06 2015 01:54:10 CST No sudden loss of generation greater than 450 MW occurred on 04/05/2015. Operational Information Active
Apr 05 2015 08:50:19 CST Daily reconfiguration SASM for Sunday, April 5, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 05 2015 00:59:31 CST No sudden loss of generation greater than 450 MW occurred on 04/04/2015. Operational Information Active
Apr 04 2015 08:50:06 CST Daily reconfiguration SASM for Saturday, April 4, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 04 2015 00:01:31 CST No sudden loss of generation greater than 450 MW occurred on 04/03/2015. Operational Information Active
Apr 03 2015 08:50:35 CST Daily reconfiguration SASM for Friday, April 3, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 03 2015 00:22:54 CST No sudden loss of generation greater than 450 MW occurred on 04/02/2015. Operational Information Active
Apr 02 2015 16:47:37 CST ERCOT has cancelled the following notice: ERCOT is working from alternate control center. Operational Information Cancelled
Apr 02 2015 10:55:38 CST DC Tie Outage: The EAST DC Tie will be unavailable from 08:00 04/06/2015 through 16:00 04/07/2015 due to a planned outage. Operational Information Active
Apr 02 2015 08:52:41 CST Daily reconfiguration SASM for Thursday, April 02, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 02 2015 07:54:04 CST DC Tie Outage: The Laredo VFT DC Tie will be unavailable from 07:00 04/06/2015 through 16:00 04/10/2015 due to a planned outage. Operational Information Active
Apr 02 2015 01:11:22 CST No sudden loss of generation greater than 450 MW occurred on 04/01/2015. Operational Information Active
Apr 01 2015 08:46:06 CST Daily Reconfiguration SASM for Wednesday, April 01, 2015 will not be occurring due to zero participating QSEs. Operational Information Active
Apr 01 2015 01:00:45 CST No sudden loss of generation greater than 450 MW occurred on 03/31/2015. Operational Information Active