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.)

    Mar 2016 Apr 2016 May 2016 Jun 2016 Jul 2016 Aug 2016
    Date Message Type Status
    Aug 25 2016 14:59:40 CST At 3:25 PM on 08/25/2016, ERCOT will perform unplanned 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
    Aug 25 2016 13:17:24 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 25 2016 08:47:26 CST Daily RSASM for Thursday, August 25, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 25 2016 08:38:18 CST ERCOT has cancelled the following notice: At 08:10 ERCOT is issuing a Watch due to a SCED failure. ERCOT may issue Emergency Base Points until the issue is resolved. Watch Cancelled
    Aug 25 2016 08:35:23 CST ERCOT has cancelled the following notice: At 08:10 ERCOT is issuing a Watch due to a SCED failure. ERCOT may issue Emergency Base Points until the issue is resolved. Watch Cancelled
    Aug 25 2016 08:27:22 CST At 08:10 ERCOT is issuing a Watch due to a SCED failure. ERCOT may issue Emergency Base Points until the issue is resolved. Watch Active
    Aug 25 2016 01:35:42 CST No sudden loss of generation greater than 450 MW occurred on 08/24/2016. Operational Information Active
    Aug 24 2016 17:43:39 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 24 2016 14:58:32 CST The RAILROAD DC Tie limitation to 150 MW was cancelled @ 15:00 on 8/24/2016. Operational Information Active
    Aug 24 2016 14:46:24 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 24 2016 08:48:25 CST Daily RSASM for Wednesday, August 24, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 24 2016 02:35:32 CST No sudden loss of generation greater than 450 MW occurred on 08/23/2016. Operational Information Active
    Aug 23 2016 08:50:46 CST Daily RSASM for Tuesday, August 23, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 23 2016 02:31:31 CST No sudden loss of generation greater than 450 MW occurred on 08/22/2016. Operational Information Active
    Aug 22 2016 08:48:01 CST Daily RSASM for Monday, August 22, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 22 2016 00:34:34 CST No sudden loss of generation greater than 450 MW occurred on 08/21/2016. Operational Information Active
    Aug 21 2016 08:51:05 CST Daily RSASM for Sunday, August 21, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 21 2016 00:13:01 CST No sudden loss of generation greater than 450 MW occurred on 08/20/2016. Operational Information Active
    Aug 20 2016 08:52:34 CST Daily RSASM for Saturday, August 20, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 20 2016 01:07:15 CST No sudden loss of generation greater than 450 MW occurred on 08/19/2016. Operational Information Active
    Aug 19 2016 08:51:00 CST Daily RSASM for Friday, August 19, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 19 2016 00:03:19 CST No sudden loss of generation greater than 450 MW occurred on 08/18/2016. Operational Information Active
    Aug 18 2016 08:58:52 CST Daily RSASM for Thursday, August 18, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 18 2016 00:07:54 CST No sudden loss of generation greater than 450 MW occurred on 08/17/2016. Operational Information Active
    Aug 17 2016 18:02:16 CST ERCOT has cancelled the following notice: At 5:25 PM on 08/17/2016, ERCOT will perform planned 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
    Aug 17 2016 16:49:38 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 17 2016 12:21:21 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 17 2016 10:11:40 CST At 5:25 PM on 08/17/2016, ERCOT will perform planned 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
    Aug 17 2016 08:46:25 CST RSASM for Wednesday, August 17, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 17 2016 00:06:54 CST No sudden loss of generation greater than 450 MW occurred on 08/16/2016. Operational Information Active
    Aug 16 2016 08:48:18 CST RSASM for Tuesday, August 16, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 16 2016 00:08:08 CST On 08/15/2016, a sudden loss of generation occurred at 19:39 totaling 869 MW. Frequency declined to 59.831 Hz, ERCOT load was 45, 459 MW. Operational Information Active
    Aug 15 2016 08:46:23 CST Daily RSASM for Monday, August 15, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 15 2016 00:02:37 CST No sudden loss of generation greater than 450 MW occurred on 08/14/2016. Operational Information Active
    Aug 14 2016 08:46:30 CST Daily RSASM for Sunday, August 14, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 14 2016 00:05:13 CST No sudden loss of generation greater than 450 MW occurred on 08/13/2016. Operational Information Active
    Aug 13 2016 08:47:19 CST Daily RSASM for Saturday, August 13, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 13 2016 00:10:52 CST No sudden loss of generation greater than 450 MW occurred on 08/12/2016. Operational Information Active
    Aug 12 2016 12:05:08 CST ERCOT has cancelled the following notice: The East DC Tie will be unavailable from 18:00 07/29/2016 through 16:00 09/05/2016 due to a forced outage. Operational Information Cancelled
    Aug 12 2016 08:49:38 CST Daily RSASM for Friday, August 12, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 12 2016 05:58:33 CST ERCOT has cancelled the following notice: ERCOT is working from alternate control center. Operational Information Cancelled
    Aug 12 2016 00:28:28 CST No sudden loss of generation greater than 450 MW occurred on 08/11/2016. Operational Information Active
    Aug 11 2016 18:04:39 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 11 2016 16:30:01 CST ERCOT is working from alternate control center. Operational Information Active
    Aug 11 2016 13:30:33 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 11 2016 08:46:33 CST Daily RSASM for Thursday, August 11, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 11 2016 00:51:16 CST No sudden loss of generation greater than 450 MW occurred on 08/10/2016. Operational Information Active
    Aug 10 2016 20:04:57 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 10 2016 20:01:39 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 10 2016 14:12:29 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 10 2016 12:36:29 CST ERCOT has cancelled the following notice: The Eskota Switch SPS has been taken out of service/removed from RTCA. Operational Information Cancelled
    Aug 10 2016 08:50:15 CST Daily RSASM for Wednesday, August 10, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 10 2016 06:44:46 CST The Eskota Switch SPS has been taken out of service/removed from RTCA. Operational Information Active
    Aug 10 2016 00:08:20 CST No sudden loss of generation greater than 450 MW occurred on 08/9/2016. Operational Information Active
    Aug 09 2016 15:05:23 CST ERCOT will execute a SASM in 30 minutes for 08/09/2016 for HE18 thru HE24 for REGUP 16MW. Operational Information Active
    Aug 09 2016 08:55:15 CST Daily RSASM for Tuesday, August 09, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 09 2016 07:01:05 CST ERCOT has cancelled the following notice: No sudden loss of generation greater than 450 MW occurred on 08/7/2016. Operational Information Cancelled
    Aug 09 2016 05:18:14 CST No sudden loss of generation greater than 450 MW occurred on 08/8/2016. Operational Information Active
    Aug 09 2016 00:08:06 CST No sudden loss of generation greater than 450 MW occurred on 08/7/2016. Operational Information Active
    Aug 08 2016 15:10:52 CST The RAILROAD DC Tie will be limited to 150 MW through August 29th, at 1700 Hr. Operational Information Active
    Aug 08 2016 08:50:18 CST Daily RSASM for Monday, August 8, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 08 2016 00:12:02 CST No sudden loss of generation greater than 450 MW occurred on 08/7/2016. Operational Information Active
    Aug 07 2016 19:39:13 CST ERCOT has cancelled the following notice: outage on the Railroad (RAILROAD) HVDC tie Starting Saturday 08/06/16 at 07:00 until Sunday 08/07/16 at 19:00. Operational Information Cancelled
    Aug 07 2016 08:47:03 CST Daily RSASM for Sunday, August 7, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 07 2016 00:19:47 CST No sudden loss of generation greater than 450 MW occurred on 08/6/2016. Operational Information Active
    Aug 06 2016 18:11:04 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 06 2016 13:57:32 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 06 2016 08:47:20 CST Daily RSASM for Saturday, August 6, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 06 2016 00:50:44 CST No sudden loss of generation greater than 450 MW occurred on 08/5/2016. Operational Information Active
    Aug 05 2016 16:59:37 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 05 2016 14:32:27 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 05 2016 10:48:24 CST outage on the Railroad (RAILROAD) HVDC tie Starting Saturday 08/06/16 at 07:00 until Sunday 08/07/16 at 19:00. Operational Information Active
    Aug 05 2016 08:46:54 CST Daily RSASM for Friday, August 5, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 05 2016 00:02:10 CST No sudden loss of generation greater than 450 MW occurred on 08/4/2016. Operational Information Active
    Aug 04 2016 17:20:12 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 04 2016 15:56:47 CST DC Tie Outage: The East DC Tie will be unavailable from 18:00 07/29/2016 through 16:00 09/05/2016 due to a forced outage. Operational Information Active
    Aug 04 2016 15:09:52 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 04 2016 08:47:24 CST Daily RSASM for Thursday, August 4, 2016 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 04 2016 00:00:08 CST No sudden loss of generation greater than 450 MW occurred on 08/3/2016. Operational Information Active
    Aug 03 2016 19:55:06 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 03 2016 13:08:28 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 03 2016 08:47:13 CST Daily RSASM for Wednesday, August 3, 2016 did not occur due to zero participating QSEs. Operational Information Active
    Aug 03 2016 08:44:34 CST ERCOT has cancelled the following notice: The ERCOT E-tagging system is down and no new schedules will be accepted across the DC Ties at this time. Operational Information Cancelled
    Aug 03 2016 08:18:43 CST The ERCOT E-tagging system is down and no new schedules will be accepted across the DC Ties at this time. Operational Information Active
    Aug 03 2016 00:32:19 CST On 08/02/2016, a sudden loss of generation occurred at 18:37 totaling 526 net MW. Frequency declined to 59.913 Hz, ERCOT load was 65, 957 MW. Operational Information Active
    Aug 02 2016 19:00:19 CST ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 20:00. ERCOT is requesting all QSE's to update their COPs. OCN Cancelled
    Aug 02 2016 18:15:03 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 02 2016 14:02:24 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 02 2016 10:19:27 CST Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 20:00. ERCOT is requesting all QSE's to update their COPs. OCN Active
    Aug 02 2016 08:48:11 CST Daily RSASM for Tuesday, August 2, 2016 did not occur due to zero participating QSEs. Operational Information Active
    Aug 02 2016 08:27:53 CST Daily RSASM for Monday, August 1, 2016 did not occur due to zero participating QSEs. Operational Information Active
    Aug 02 2016 00:04:15 CST No sudden loss of generation greater than 450 MW occurred on 08/1/2016. Operational Information Active
    Aug 01 2016 22:11:42 CST The RAILROAD DC Tie will be limited to 150 MW through August 29th, at 1700 Hr. Operational Information Active
    Aug 01 2016 00:51:08 CST No sudden loss of generation greater than 450 MW occurred on 07/31/2016. Operational Information Active