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.)

    Sep 2016 Oct 2016 Nov 2016 Dec 2016 Jan 2017 Feb 2017
    Date Message Type Status
    Feb 24 2017 08:47:55 CST The Daily RSASM for Friday, February 24, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 24 2017 01:33:37 CST No sudden loss of generation greater than 450 MW occurred on 02/23/2017. Operational Information Active
    Feb 23 2017 08:47:55 CST The Daily RSASM for Thursday, February 23, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 23 2017 00:28:02 CST No sudden loss of generation greater than 450 MW occurred on 02/22/2017. Operational Information Active
    Feb 23 2017 00:27:23 CST ERCOT has cancelled the following notice: At 3:25 PM on 02/22/2017, ERCOT will perform site failover of its Energy Market Management Systems. During this time, market communications will be unavailable for about 20 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 Cancelled
    Feb 22 2017 13:36:33 CST At 3:25 PM on 02/22/2017, ERCOT will perform site failover of its Energy Market Management Systems. During this time, market communications will be unavailable for about 20 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
    Feb 22 2017 11:36:54 CST DC Tie Outage: The South DC Tie will be unavailable from 16:57 02/21/2017 through 17:00 02/24/2017 due to a forced outage. Operational Information Active
    Feb 22 2017 11:34:30 CST ERCOT has cancelled the following notice: The DC_S DC Tie will be unavailable from 16:40 02/21/2017 through 23:59 02/21/2017 due to a forced outage. Operational Information Cancelled
    Feb 22 2017 08:49:41 CST The Daily RSASM for Wednesday, February 22, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 22 2017 01:36:48 CST No sudden loss of generation greater than 450 MW occurred on 02/21/2017. Operational Information Active
    Feb 21 2017 17:42:31 CST DC Tie Outage: The DC_S DC Tie will be unavailable from 16:40 02/21/2017 through 23:59 02/21/2017 due to a forced outage. Operational Information Active
    Feb 21 2017 08:54:45 CST The Daily RSASM for Tuesday, February 21, 2017 did not occur due to zero participating QSEs. Posted on Notice Builder and sent email to SASM. Operational Information Active
    Feb 21 2017 00:14:29 CST No sudden loss of generation greater than 450 MW occurred on 02/20/2017. Operational Information Active
    Feb 20 2017 18:23:03 CST ERCOT has cancelled the following notice: The ERCOT planned failover of its Energy Market Management System has been delayed. The new start time has not been determined. The new site failover time will be preceded by an MIS Posting and a "hot line" call shortly before the event. Operational Information Cancelled
    Feb 20 2017 17:15:20 CST The ERCOT planned failover of its Energy Market Management System has been delayed. The new start time has not been determined. The new site failover time will be preceded by an MIS Posting and a "hot line" call shortly before the event. Operational Information Active
    Feb 20 2017 17:12:47 CST ERCOT has cancelled the following notice: At 5:25 PM on 02/20/2017, ERCOT will perform site failover of its Energy Market Management Systems. During this time, market communications will be unavailable for about 20 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 Cancelled
    Feb 20 2017 15:10:49 CST ERCOT has cancelled the following notice: At 4:25 PM on 02/20/2017, ERCOT will perform site failover of its Energy Market Management Systems. During this time, market communications will be unavailable for about 20 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 Cancelled
    Feb 20 2017 15:10:30 CST At 5:25 PM on 02/20/2017, ERCOT will perform site failover of its Energy Market Management Systems. During this time, market communications will be unavailable for about 20 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
    Feb 20 2017 11:43:10 CST At 4:25 PM on 02/20/2017, ERCOT will perform site failover of its Energy Market Management Systems. During this time, market communications will be unavailable for about 20 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
    Feb 20 2017 08:47:14 CST The Daily RSASM for Monday, February 20, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 20 2017 02:48:11 CST On Feb 19, 2017 a sudden loss of generation occurred at 22:49 totaling 422 MW. Frequency declined to 59.845 Hz, ERCOT load was 32, 522 MW. Operational Information Active
    Feb 20 2017 02:47:51 CST On Feb 19, 2017 a sudden loss of generation occurred at 22:47 totaling 276 MW. Frequency declined to 59.949 Hz, ERCOT load was 32, 591 MW. Operational Information Active
    Feb 19 2017 08:51:25 CST The Daily RSASM for Sunday, February 19, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 19 2017 03:11:11 CST No sudden loss of generation greater than 450 MW occurred on 02/18/2017. Operational Information Active
    Feb 18 2017 18:03:38 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Feb 18 2017 18:03:32 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Feb 18 2017 14:45:08 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Feb 18 2017 08:51:29 CST The Daily RSASM for Saturday, February 18, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 18 2017 03:11:29 CST No sudden loss of generation greater than 450 MW occurred on 02/17/2017. Operational Information Active
    Feb 17 2017 17:34:00 CST The Laredo DC Tie Outage will be extended, until 19:00 03/03/2017 (due to a forced outage.) Operational Information Active
    Feb 17 2017 08:50:32 CST The Daily RSASM for Friday, February 17, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 17 2017 06:47:56 CST ERCOT has cancelled the following notice: The Eskota RAS has been taken out of service/removed from RTCA. Operational Information Cancelled
    Feb 17 2017 02:53:07 CST No sudden loss of generation greater than 450 MW occurred on 02/16/2017. Operational Information Active
    Feb 16 2017 08:50:36 CST The Daily RSASM for Thursday, February 16, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 16 2017 01:43:59 CST The Eskota RAS has been taken out of service/removed from RTCA. Operational Information Active
    Feb 16 2017 00:33:05 CST No sudden loss of generation greater than 450 MW occurred on 02/15/2017. Operational Information Active
    Feb 15 2017 08:47:00 CST The Daily RSASM for Wednesday, February 15, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 15 2017 00:31:44 CST No sudden loss of generation greater than 450 MW occurred on 02/14/2017. Operational Information Active
    Feb 14 2017 17:29:52 CST DC Tie Outage: The Laredo DC Tie will be unavailable from 00:51 02/08/2017 through 19:00 02/17/2017 due to a forced outage. Operational Information Active
    Feb 14 2017 08:49:50 CST The Daily RSASM for Tuesday, February 14, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 14 2017 01:43:03 CST No sudden loss of generation greater than 450 MW occurred on 02/13/2017. Operational Information Active
    Feb 13 2017 08:53:55 CST ERCOT has cancelled the following notice: The Railroad DC Tie will be de-rated to 150mws until further notice, due to a forced outage. Operational Information Cancelled
    Feb 13 2017 08:48:06 CST The Daily RSASM for Monday, February 13, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 13 2017 07:01:55 CST The Railroad DC Tie will be de-rated to 150mws until further notice, due to a forced outage. Operational Information Active
    Feb 13 2017 05:49:34 CST ERCOT has cancelled the following notice: The SPS/RAS at Barney Davis is back in service at 1831. Operational Information Cancelled
    Feb 13 2017 00:01:51 CST No sudden loss of generation greater than 450 MW occurred on 02/12/2017. Operational Information Active
    Feb 12 2017 08:55:17 CST The Daily RSASM for Sunday, February 12, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 12 2017 04:39:04 CST ERCOT is working from the primary control center until further notice. Use phone numbers for Taylor Control Center. Operational Information Active
    Feb 12 2017 04:35:27 CST ERCOT has cancelled the following notice: ERCOT is working from the Alternate control center. Operational Information Cancelled
    Feb 12 2017 00:02:23 CST No sudden loss of generation greater than 450 MW occurred on 02/11/2017. Operational Information Active
    Feb 11 2017 19:00:02 CST ERCOT has cancelled the following notice: ERCOT is issuing a Watch due to DRUC not completing by 1800 due to the completion time of the Day Ahead Market. Watch Cancelled
    Feb 11 2017 18:05:50 CST ERCOT is issuing a Watch due to DRUC not completing by 1800 due to the completion time of the Day Ahead Market. Watch Active
    Feb 11 2017 17:50:57 CST DAM is complete, DRUC will not be run as a result of the completion time of the Day Ahead Market. Operational Information Active
    Feb 11 2017 17:07:25 CST The DAM issue for OD 2/12/2017 has been resolved and the Market is expected to be posted by 1900. Advisory Active
    Feb 11 2017 12:50:47 CST ERCOT has postponed the deadline for the posting of the DAM Solution for Operating Day 2/12/2017 due to internal issue which is being investigated. Please stand by until a Market Notice of resolution has been sent. Advisory Active
    Feb 11 2017 08:49:50 CST The Daily RSASM for Saturday, February 11, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Feb 11 2017 04:21:48 CST ERCOT is working from the Alternate control center. Operational Information Active
    Feb 11 2017 00:02:38 CST No sudden loss of generation greater than 450 MW occurred on 02/10/2017 Operational Information Active
    Feb 10 2017 23:20:41 CST ERCOT has cancelled the following notice: The RAILROAD, DC_ROAD, will be de-rated to 150mw from 08:01 02/06/2017 through 19:00 02/13/2017 due to a planned outage. Operational Information Cancelled
    Feb 10 2017 18:43:34 CST The SPS/RAS at Barney Davis is back in service at 1831. Operational Information Active
    Feb 10 2017 12:02:21 CST ERCOT has cancelled the following notice: The Railroad DC Tie will be unavailable from 17:00 02/08/2017 through 19:00 02/10/2017 due to a forced outage. Operational Information Cancelled
    Feb 10 2017 08:48:17 CST The Daily RSASM for Friday, February 10, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 10 2017 04:44:07 CST ERCOT is working from the primary control center Operational Information Active
    Feb 10 2017 02:13:48 CST No sudden loss of generation greater than 450 MW occurred on 02/09/2017 Operational Information Active
    Feb 09 2017 09:06:04 CST No sudden loss of generation greater than 450 MW occurred on 02/08/2017 Operational Information Active
    Feb 09 2017 08:56:07 CST The Daily RSASM for Thursday, February 9, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 08 2017 17:17:15 CST DC Tie Outage: The Railroad DC Tie will be unavailable from 17:00 02/08/2017 through 19:00 02/10/2017 due to a forced outage. Operational Information Active
    Feb 08 2017 16:21:56 CST ERCOT has cancelled the following notice: The Eagle Pass HV DC Tie will be unavailable from 09:00 02/07/2017 through 15:30 02/08/2017 due to a planned outage. Operational Information Cancelled
    Feb 08 2017 14:25:57 CST ERCOT has cancelled the following notice: The WIRTZ RAS has been taken out of service/removed from RTCA at 0912 Operational Information Cancelled
    Feb 08 2017 09:16:01 CST ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 00:51 02/08/2017 through 13:00 02/08/2017 due to a forced outage. Operational Information Cancelled
    Feb 08 2017 09:15:40 CST DC Tie Outage: The Laredo DC Tie will be unavailable from 00:51 02/08/2017 through 19:00 02/10/2017 due to a forced outage. Operational Information Active
    Feb 08 2017 08:52:31 CST The Daily RSASM for Wednesday, February 8, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 08 2017 04:35:47 CST DC Tie Outage: The Laredo DC Tie will be unavailable from 00:51 02/08/2017 through 13:00 02/08/2017 due to a forced outage. Operational Information Active
    Feb 08 2017 03:17:40 CST No sudden loss of generation greater than 450 MW occurred on 02/07/2017 Operational Information Active
    Feb 07 2017 08:50:38 CST The Daily RSASM for Tuesday, February 7, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 07 2017 03:01:59 CST No sudden loss of generation greater than 450 MW occurred on 02/06/2017 Operational Information Active
    Feb 06 2017 09:30:54 CST The WIRTZ RAS has been taken out of service/removed from RTCA at 0912 Operational Information Active
    Feb 06 2017 08:56:41 CST The Daily RSASM for Monday, February 6, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 06 2017 07:59:46 CST The RAILROAD, DC_ROAD, will be de-rated to 150mw from 08:01 02/06/2017 through 19:00 02/13/2017 due to a planned outage. Operational Information Active
    Feb 06 2017 07:59:19 CST ERCOT has cancelled the following notice: The RAILROAD, DC_ROAD, will be unavailable from 08:01 02/06/2017 through 19:00 02/13/2017 due to a planned outage. Operational Information Cancelled
    Feb 06 2017 07:42:42 CST The RAILROAD, DC_ROAD, will be unavailable from 08:01 02/06/2017 through 19:00 02/13/2017 due to a planned outage. Operational Information Active
    Feb 06 2017 05:42:13 CST ERCOT has cancelled the following notice: ERCOT will execute a SASM at 2315 for operating day 02/06/2017 for HE 1-24 for REG UP MW amounts HE 1-9 15 mw HE 10 14 mw HE 11 13 mw HE 12-13 12 MW HE 14-16 11 MW HE 17 12 MW HE 18 13 MW HE 19–21 14 MW HE 22-23 15 MW HE 24 14 MW Operational Information Cancelled
    Feb 06 2017 05:42:00 CST ERCOT has cancelled the following notice: ERCOT will execute a SASM at 0420 for operating day 02/06/2017 for HE 0700-1200. REG UP MW 34 each hour and REG DOWN MW 18 each hour. Operational Information Cancelled
    Feb 06 2017 03:57:58 CST ERCOT will execute a SASM at 0420 for operating day 02/06/2017 for HE 0700-1200. REG UP MW 34 each hour and REG DOWN MW 18 each hour. Operational Information Active
    Feb 06 2017 00:57:21 CST No sudden loss of generation greater than 450 MW occurred on 02/05/2017. Operational Information Active
    Feb 05 2017 22:55:49 CST ERCOT will execute a SASM at 2315 for operating day 02/06/2017 for HE 1-24 for REG UP MW amounts HE 1-9 15 mw HE 10 14 mw HE 11 13 mw HE 12-13 12 MW HE 14-16 11 MW HE 17 12 MW HE 18 13 MW HE 19–21 14 MW HE 22-23 15 MW HE 24 14 MW Operational Information Active
    Feb 05 2017 08:45:58 CST The Daily RSASM for Sunday, February 05, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 05 2017 05:15:06 CST DC Tie Outage: The Eagle Pass HV DC Tie will be unavailable from 09:00 02/07/2017 through 15:30 02/08/2017 due to a planned outage. Operational Information Active
    Feb 05 2017 05:06:53 CST Beginning Monday 02/06/17 at 08:01 until Monday 02/13/17 at 19:00. The DC_ROAD (Railroad) HVDC Tie will be limited to 150 MW. Operational Information Active
    Feb 05 2017 04:53:25 CST DC Tie Outage: The East HV DC Tie will be unavailable from 07:00 02/07/2017 through 16:00 04/26/2017 due to a planned outage. Operational Information Active
    Feb 05 2017 00:44:42 CST No sudden loss of generation greater than 450 MW occurred on 02/04/2017. Operational Information Active
    Feb 04 2017 08:47:26 CST The Daily RSASM for Saturday, February 04, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 04 2017 01:50:34 CST No sudden loss of generation greater than 450 MW occurred on 02/03/2017. Operational Information Active
    Feb 03 2017 12:11:39 CST ERCOT has cancelled the following notice: Beginning Monday 01/30/17 at 07:00 until Monday 02/06/17 at 08:00. The DC_ROAD (Railroad) HVDC Tie will be limited to 150 MW. Operational Information Cancelled
    Feb 03 2017 08:49:18 CST The Daily RSASM for Friday, February 03, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 03 2017 06:17:52 CST DC Tie Outage: The DC_L DC Tie will be unavailable from 06:03 02/03/2017 through 23:59 02/03/2017 due to a forced outage. Operational Information Active
    Feb 03 2017 00:01:41 CST No sudden loss of generation greater than 450 MW occurred on 02/02/2017. Operational Information Active
    Feb 02 2017 08:46:20 CST The Daily RSASM for Thursday, February 02, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 02 2017 00:03:37 CST No sudden loss of generation greater than 450 MW occurred on 02/01/2017. Operational Information Active
    Feb 01 2017 12:26:22 CST Beginning Monday 01/30/17 at 07:00 until Monday 02/06/17 at 08:00. The DC_ROAD (Railroad) HVDC Tie will be limited to 150 MW. Operational Information Active
    Feb 01 2017 12:24:03 CST ERCOT has cancelled the following notice: Beginning Monday 01/30/17 at 07:00 until Monday 02/06/17 at 08:00. The DC_ROAD (Railroad) HVDC Tie will be limited to 150 MW. Operational Information Cancelled
    Feb 01 2017 12:23:05 CST ERCOT has cancelled the following notice: The DC_R #1 DC Tie will be unavailable from 20:07 01/30/2017 through 21:00 02/03/2017 due to a forced outage. Operational Information Cancelled
    Feb 01 2017 10:58:40 CST ERCOT has cancelled the following notice: The DC_EGPS DC Tie will be unavailable from 09:00 02/01/2017 through 17:30 02/03/2017 due to a planned outage. Operational Information Cancelled
    Feb 01 2017 08:48:45 CST The Daily RSASM for Wednesday, February 1, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Feb 01 2017 00:04:41 CST No sudden loss of generation greater than 450 MW occurred on 01/31/2017. Operational Information Active