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 2017 Apr 2017 May 2017 Jun 2017 Jul 2017 Aug 2017
    Date Message Type Status
    Aug 18 2017 00:45:15 CST No sudden loss of generation greater than 450 MW occurred on August 17, 2017. Operational Information Active
    Aug 17 2017 20:09:11 CST ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 15:46 08/17/2017 through 00:00 08/18/2017 due to a forced outage. Operational Information Cancelled
    Aug 17 2017 17:11:23 CST The Laredo DC Tie will be unavailable from 15:46 08/17/2017 through 21:00 08/18/2017 due to a forced outage. Operational Information Active
    Aug 17 2017 16:06:37 CST At 15:46 A Transmission Watch has been issued due to the Laredo DC Tie trip. This may result in curtailments of the DC Tie export to CENACE. Operational Information Active
    Aug 17 2017 15:56:58 CST DC Tie Outage: The Laredo DC Tie will be unavailable from 15:46 08/17/2017 through 00:00 08/18/2017 due to a forced outage. Operational Information Active
    Aug 17 2017 08:50:19 CST The Daily RSASM for Thursday August 17, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 17 2017 07:43:56 CST The Barney Davis RAS has been taken out of service/removed from RTCA. Operational Information Active
    Aug 17 2017 00:17:52 CST No sudden loss of generation greater than 450 MW occurred on August 16, 2017. Operational Information Active
    Aug 16 2017 18:01:32 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 16 2017 16:42:45 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 16 2017 10:05:43 CST The Daily RSASM for Wednesday August 16, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 16 2017 00:31:42 CST No sudden loss of generation greater than 450 MW occurred on August 15, 2017. Operational Information Active
    Aug 15 2017 16:59:37 CST The Daily RSASM for Tuesday August 15, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 15 2017 16:59:09 CST The Daily RSASM for Monday August 14, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 15 2017 08:45:52 CST ERCOT has cancelled the following notice: The Barney Davis RAS has been taken out of service/removed from RTCA. Operational Information Cancelled
    Aug 15 2017 00:44:45 CST No sudden loss of generation greater than 450 MW occurred on August 14, 2017. Operational Information Active
    Aug 14 2017 21:32:17 CST The Barney Davis RAS has been taken out of service/removed from RTCA. Operational Information Active
    Aug 14 2017 14:12:33 CST ERCOT has cancelled the following notice: The OATI E-tagging system is down and no new schedules will be accepted across the DC Ties at this time. Operational Information Cancelled
    Aug 14 2017 13:35:42 CST The OATI E-tagging system is down and no new schedules will be accepted across the DC Ties at this time. Operational Information Active
    Aug 14 2017 07:45:17 CST ERCOT has cancelled the following notice: The East DC Tie will be unavailable from 02:47 08/14/2017 through 00:00 08/15/2017 due to a forced outage. Operational Information Cancelled
    Aug 14 2017 02:55:17 CST DC Tie Outage: The East DC Tie will be unavailable from 02:47 08/14/2017 through 00:00 08/15/2017 due to a forced outage. Operational Information Active
    Aug 14 2017 00:19:10 CST No sudden loss of generation greater than 450 MW occurred on August 13, 2017. Operational Information Active
    Aug 13 2017 08:45:47 CST The Daily RSASM for Sunday August 13, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 13 2017 00:04:49 CST No sudden loss of generation greater than 450 MW occurred on August 12, 2017. Operational Information Active
    Aug 12 2017 08:46:30 CST The Daily RSASM for Saturday August 12, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 12 2017 00:19:34 CST No sudden loss of generation greater than 450 MW occurred on August 11, 2017. Operational Information Active
    Aug 11 2017 08:45:38 CST The Daily RSASM for Friday August 11, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 11 2017 04:59:58 CST ERCOT is working from the Primary Control Center. Operational Information Active
    Aug 11 2017 04:59:04 CST ERCOT has cancelled the following notice: ERCOT is working from alternate control center. Operational Information Cancelled
    Aug 11 2017 00:10:10 CST No sudden loss of generation greater than 450 MW occurred on August 10, 2017. Operational Information Active
    Aug 10 2017 16:39:08 CST ERCOT is working from alternate control center. Operational Information Active
    Aug 10 2017 08:48:56 CST The Daily RSASM for Thursday August 10, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 10 2017 01:04:53 CST On 8/9/2017 a sudden loss of generation occurred at 1833 totaling 700 MW. Frequency declined to 59.868 Hz, ERCOT load was 61863 MW. Operational Information Active
    Aug 09 2017 21:36:43 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 09 2017 18:39:03 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Aug 09 2017 18:34:03 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Aug 09 2017 17:32:09 CST The ESKOTA RAS has been Placed Back in service at 17:19 08/09/2017. Operational Information Active
    Aug 09 2017 14:03:53 CST The Laredo DC Tie has been released from it's outage and is now available for full capacity. Operational Information Active
    Aug 09 2017 13:23:29 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 09 2017 11:44:16 CST ERCOT has cancelled the following notice: AEP will be flowing power today across the Laredo VFT following extensive work. ERCOT and CENACE will continue to coordinate together to allow the testing prior to release of normal operations Operational Information Cancelled
    Aug 09 2017 08:48:52 CST The Daily RSASM for Wednesday August 9, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 09 2017 04:30:45 CST AEP will be flowing power today across the Laredo VFT following extensive work. ERCOT and CENACE will continue to coordinate together to allow the testing prior to release of normal operations Operational Information Active
    Aug 09 2017 01:19:14 CST No sudden loss of generation greater than 450 MW occurred on August 8, 2017. Operational Information Active
    Aug 08 2017 19:15:42 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 08 2017 15:50:57 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 08 2017 09:12:59 CST The Daily RSASM for Tuesday August 8, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 08 2017 00:26:49 CST No sudden loss of generation greater than 450 MW occurred on August 7, 2017. Operational Information Active
    Aug 07 2017 08:49:34 CST The Daily RSASM for Monday August 7, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 07 2017 03:12:01 CST No sudden loss of generation greater than 450 MW occurred on August 6, 2017. Operational Information Active
    Aug 06 2017 19:56:28 CST ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 14:00 through 20:00. ERCOT is requesting all QSE's to update their COPs. OCN Cancelled
    Aug 06 2017 08:48:37 CST The Daily RSASM for Sunday, August 6, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 06 2017 03:18:58 CST 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 06 2017 00:53:11 CST No sudden loss of generation greater than 450 MW occurred on August 5, 2017. Operational Information Active
    Aug 05 2017 19:59:32 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 05 2017 08:50:15 CST The Daily RSASM for Saturday, August 5, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 05 2017 08:24:35 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 05 2017 00:32:33 CST No sudden loss of generation greater than 450 MW occurred on August 4, 2017. Operational Information Active
    Aug 04 2017 20:00:57 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 04 2017 08:48:39 CST The Daily RSASM for Friday, August 4, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 04 2017 08:41:56 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 04 2017 02:07:32 CST No sudden loss of generation greater than 450 MW occurred on August 3, 2017. Operational Information Active
    Aug 03 2017 19:59:12 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Aug 03 2017 14:43:56 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Aug 03 2017 14:43:31 CST ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 16:00 through 23:00. ERCOT is requesting all QSE's to update their COPs. OCN Cancelled
    Aug 03 2017 14:15:41 CST Capacity Insufficiency: ERCOT is issuing an OCN for a projected reserve capacity shortage for hours ending 16:00 through 23:00. ERCOT is requesting all QSE's to update their COPs. OCN Active
    Aug 03 2017 08:48:07 CST The Daily RSASM for Thursday, August 3, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 03 2017 03:39:08 CST No sudden loss of generation greater than 450 MW occurred on August 2, 2017. Operational Information Active
    Aug 02 2017 12:26:35 CST ERCOT has cancelled the following notice: The SOUTH DC Tie will be unavailable from 06:06 08/01/2017 through 18:00 08/02/2017 due to a forced outage. Operational Information Cancelled
    Aug 02 2017 08:46:02 CST The Daily RSASM for Wednesday, August 2, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 02 2017 03:04:38 CST No sudden loss of generation greater than 450 MW occurred on August 1, 2017. Operational Information Active
    Aug 02 2017 00:00:12 CST ERCOT has cancelled the following notice: ERCOT has issued a Transmission Watch for the Eagle Pass DC Tie due to the Tie tripping. Operational Information Cancelled
    Aug 01 2017 23:58:31 CST ERCOT has cancelled the following notice: ERCOT has issued a Transmission Watch for the Eagle Pass DC Tie due to the Tie tripping. Operational Information Cancelled
    Aug 01 2017 09:29:02 CST DC Tie Outage: The SOUTH DC Tie will be unavailable from 06:06 08/01/2017 through 18:00 08/02/2017 due to a forced outage. Operational Information Active
    Aug 01 2017 09:25:08 CST ERCOT has issued a Transmission Watch for the Eagle Pass DC Tie due to the Tie tripping. Operational Information Active
    Aug 01 2017 08:45:46 CST The Daily RSASM for Tuesday, August 1, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Aug 01 2017 00:05:24 CST No sudden loss of generation greater than 450 MW occurred on July 31, 2017. Operational Information Active