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.)

    Oct 2016 Nov 2016 Dec 2016 Jan 2017 Feb 2017 Mar 2017
    Date Message Type Status
    Mar 25 2017 14:52:15 CST DC Tie Outage: The DC_EGPS DC Tie will be unavailable from 07:00 03/27/2017 through 18:00 03/31/2017 due to a planned outage. Operational Information Active
    Mar 25 2017 08:48:26 CST The Daily RSASM for Saturday, March 25, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 25 2017 00:11:49 CST No sudden loss of generation greater than 450 MW occurred on 3/24/2017. Operational Information Active
    Mar 24 2017 08:55:54 CST The Daily RSASM for Friday, March 24, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 24 2017 08:11:13 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Mar 24 2017 03:24:23 CST No sudden loss of generation greater than 450 MW occurred on 3/23/2017. Operational Information Active
    Mar 23 2017 08:47:49 CST The Daily RSASM for Thursday, March 23, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 23 2017 04:53:34 CST No sudden loss of generation greater than 450 MW occurred on 3/22/2017. Operational Information Active
    Mar 22 2017 11:29:35 CST ESKOTA RAS/SPS is back in service at 1117. Operational Information Active
    Mar 22 2017 08:51:16 CST The Daily RSASM for Wednesday, March 22, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 22 2017 08:05:12 CST ESKOTA RAS/SPS removed from service at 0733 for LCRA scheduled outage. Operational Information Active
    Mar 22 2017 03:17:49 CST No sudden loss of generation greater than 450 MW occurred on 3/21/2017. Operational Information Active
    Mar 21 2017 08:51:09 CST The Daily RSASM for Tuesday, March 21, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 21 2017 03:23:24 CST No sudden loss of generation greater than 450 MW occurred on 3/20/2017. Operational Information Active
    Mar 20 2017 08:51:49 CST The Daily RSASM for Monday, March 20, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 20 2017 00:22:13 CST No sudden loss of generation greater than 450 MW occurred on 3/19/2017. Operational Information Active
    Mar 19 2017 08:47:48 CST The Daily RSASM for Sunday, March 19, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 19 2017 00:14:10 CST No sudden loss of generation greater than 450 MW occurred on 3/18/2017. Operational Information Active
    Mar 18 2017 08:46:28 CST The Daily RSASM for Saturday, March 18, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 18 2017 00:11:17 CST No sudden loss of generation greater than 450 MW occurred on 3/17/2017. Operational Information Active
    Mar 17 2017 08:46:05 CST The Daily RSASM for Friday, March 17, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 17 2017 00:01:11 CST No sudden loss of generation greater than 450 MW occurred on 3/16/2017. Operational Information Active
    Mar 16 2017 08:46:58 CST The Daily RSASM for Thursday, March 16, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 16 2017 00:06:01 CST On 03/15/2016, a sudden loss of generation occurred at 01:36 totaling 812 MW. Frequency declined to 59.787 Hz, ERCOT load was 27, 893 MW. Another sudden loss of generation occurred at 01:37 totaling 541 MW. Frequency declined to 59.753 Hz, ERCOT load was 27, 864 MW. Operational Information Active
    Mar 15 2017 12:54:47 CST ERCOT has cancelled the following notice: The Barney Davis RAS has been removed from RTCA Operational Information Cancelled
    Mar 15 2017 08:48:40 CST The Daily RSASM for Wednesday, March 15, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 15 2017 01:45:43 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Mar 15 2017 01:36:27 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Mar 15 2017 00:20:24 CST No sudden loss of generation greater than 450 MW occurred on 3/14/2017. Operational Information Active
    Mar 14 2017 22:24:21 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Mar 14 2017 22:21:05 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Mar 14 2017 08:51:18 CST The Daily RSASM for Tuesday, March 14, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 14 2017 06:11:46 CST The Barney Davis RAS has been removed from RTCA Operational Information Active
    Mar 14 2017 00:07:38 CST No sudden loss of generation greater than 450 MW occurred on 3/13/2017. Operational Information Active
    Mar 13 2017 09:00:20 CST The Daily RSASM for Monday, March 13, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 13 2017 00:17:55 CST No sudden loss of generation greater than 450 MW occurred on 3/12/2017. Operational Information Active
    Mar 12 2017 08:48:28 CST The Daily RSASM for Sunday, March 12, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 12 2017 00:12:51 CST No sudden loss of generation greater than 450 MW occurred on 3/11/2017. Operational Information Active
    Mar 11 2017 14:29:09 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Mar 11 2017 10:41:37 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Mar 11 2017 08:47:06 CST The Daily RSASM for Saturday, March 11, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 11 2017 00:01:42 CST No sudden loss of generation greater than 450 MW occurred on 3/10/2017. Operational Information Active
    Mar 10 2017 13:46:34 CST DC Tie Outage: The DC_L/Laredo VFT DC Tie will be unavailable from 00:00 02/08/2017 through 23:59 05/18/2017 due to a forced outage. Operational Information Active
    Mar 10 2017 13:43:59 CST ERCOT has cancelled the following notice: The DC_L/Laredo VFT DC Tie will be unavailable from 00:00 02/08/2017 through 19:00 03/10/2017 due to a forced outage. Operational Information Cancelled
    Mar 10 2017 08:46:29 CST The Daily RSASM for Friday, March 10, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 10 2017 04:32:35 CST ERCOT has cancelled the following notice: ERCOT will be working from the Alternate Control Center until further notice. Use the OPX numbers for Bastrop. Operational Information Cancelled
    Mar 10 2017 00:17:38 CST On 3/9/2017, a sudden loss of generation occurred at 18:38 totaling 823 MW.Frequency declined to 59.799 Hz, ERCOT load was 39, 877 MW Operational Information Active
    Mar 09 2017 20:05:55 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory for Physical Responsive Capability less than 3000 MW.” Operational Information Cancelled
    Mar 09 2017 18:50:24 CST ERCOT is issuing an Advisory for Physical Responsive Capability less than 3000 MW.” Operational Information Active
    Mar 09 2017 18:40:33 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Mar 09 2017 18:36:57 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Mar 09 2017 16:44:50 CST ERCOT will be working from the Alternate Control Center until further notice. Use the OPX numbers for Bastrop. Operational Information Active
    Mar 09 2017 08:52:22 CST The Daily RSASM for Thursday, March 9, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 09 2017 01:33:50 CST No sudden loss of generation greater than 450 MW occurred on 3/8/2017. Operational Information Active
    Mar 08 2017 08:46:58 CST The Daily RSASM for Wednesday, March 08, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 08 2017 00:14:07 CST No sudden loss of generation greater than 450 MW occurred on 3/7/2017. Operational Information Active
    Mar 07 2017 08:47:00 CST The Daily RSASM for Tuesday, March 07, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 07 2017 04:00:45 CST ERCOT has cancelled the following notice: ERCOT has Aborted the SASM which was executed for 17:45 for operating day 03/06/2017 for HE 20:00 thru 21:00 for Responsive Reserve Operational Information Cancelled
    Mar 07 2017 00:02:07 CST No sudden loss of generation greater than 450 MW occurred on 3/6/2017. Operational Information Active
    Mar 06 2017 18:39:27 CST ERCOT has Aborted the SASM which was executed for 17:45 for operating day 03/06/2017 for HE 20:00 thru 21:00 for Responsive Reserve Operational Information Active
    Mar 06 2017 18:37:26 CST ERCOT has cancelled the following notice: ERCOT will execute a SASM at 17:45 for operating day 3/06/2017 for failure to provide Responsive reserve for 40.7 MWs for HE20 and 40.8 MWs for HE21. Operational Information Cancelled
    Mar 06 2017 17:26:52 CST ERCOT will execute a SASM at 17:45 for operating day 3/06/2017 for failure to provide Responsive reserve for 40.7 MWs for HE20 and 40.8 MWs for HE21. Operational Information Active
    Mar 06 2017 08:48:30 CST The Daily RSASM for Monday, March 06, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 06 2017 00:12:58 CST No sudden loss of generation greater than 450 MW occurred on 3/5/2017. Operational Information Active
    Mar 05 2017 08:49:03 CST The Daily RSASM for Sunday, March 5, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 05 2017 00:02:57 CST No sudden loss of generation greater than 450 MW occurred on 3/4/2017. Operational Information Active
    Mar 04 2017 08:50:37 CST The Daily RSASM for Saturday, March 4, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 04 2017 01:18:50 CST No sudden loss of generation greater than 450 MW occurred on 3/3/2017. Operational Information Active
    Mar 03 2017 19:51:23 CST DC Tie Outage: The DC_L/Laredo VFT DC Tie will be unavailable from 00:00 02/08/2017 through 19:00 03/10/2017 due to a forced outage. Operational Information Active
    Mar 03 2017 08:50:50 CST The Daily RSASM for Friday, March 3, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 03 2017 00:10:32 CST No sudden loss of generation greater than 450 MW occurred on 3/2/2017. Operational Information Active
    Mar 02 2017 08:50:18 CST The Daily RSASM for Thursday, March 2, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Mar 02 2017 00:19:51 CST No sudden loss of generation greater than 450 MW occurred on 3/1/2017. Operational Information Active
    Mar 01 2017 12:05:24 CST ERCOT will execute a SASM at 12:35 for operating day 3/01/2017 for REGDN: HE15 for 19.3, HE16-18 for 19.9, HE19 for 19.3, HE20 for 24.5, HE21 for 27.8 and HE22 for 25.5. RRS for HE21 for 20.3 and HE22 for 19.7. Operational Information Active
    Mar 01 2017 08:50:47 CST The Daily RSASM for Wednesday, March 01, 2017 did not occur due to zero participating QSEs. Operational Information Active
    Mar 01 2017 05:16:03 CST ERCOT will execute a SASM at 05:45 for operating day 3/01/2017 for REGDN: HE08 for 28.1, HE09-10 for 24.9, HE11 for 25.5, HE12 for 26.7, HE13 for 28.4 and HE14 for 23.1. Also RRS for HE08 for 19.9, HE09 for 20.6, HE10 for 19.6, HE11 for 29.7, HE12 for 30.0, HE13 for 30.5, HE14 for 29.2. Operational Information Active
    Mar 01 2017 00:44:27 CST No sudden loss of generation greater than 450 MW occurred on 02/28/2017. Operational Information Active