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.)

    May 2017 Jun 2017 Jul 2017 Aug 2017 Sep 2017 Oct 2017
    Date Message Type Status
    Oct 17 2017 15:20:46 CST ERCOT has cancelled the following notice: WIRTZ RAS is out of service. Operational Information Cancelled
    Oct 17 2017 09:01:25 CST WIRTZ RAS is out of service. Operational Information Active
    Oct 17 2017 08:52:28 CST The Daily RSASM for Tuesday, October 17, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 17 2017 07:32:20 CST DC Tie Outage: The DC_EGPS DC Tie will be unavailable from 09:30 10/23/2017 through 16:00 10/23/2017 due to a planned outage. Operational Information Active
    Oct 17 2017 03:36:18 CST ERCOT will execute a SASM in 30 minutes for 10/17/17 for HE 06 (9.4) Reg Dn, HR 08 (15.6), HR 09 (6.2), HR 11 (7.4) HR 12 (7.7) RRS. Operational Information Active
    Oct 17 2017 03:12:05 CST No sudden loss of generation greater than 450 MW occurred on October 16, 2017. Operational Information Active
    Oct 17 2017 03:11:57 CST No sudden loss of generation greater than 450 MW occurred on October 16, 2017. Operational Information Active
    Oct 16 2017 09:01:35 CST The Daily RSASM for Monday, October 16, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 16 2017 07:53:06 CST DC Tie Outage: The EAST DC Tie will be unavailable from 08:00 10/16/2017 through 17:00 10/20/2017 due to a planned outage. Operational Information Active
    Oct 16 2017 00:42:21 CST No sudden loss of generation greater than 450 MW occurred on October 15, 2017. Operational Information Active
    Oct 15 2017 08:47:06 CST The Daily RSASM for Sunday, October 15, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 15 2017 01:04:14 CST No sudden loss of generation greater than 450 MW occurred on October 14, 2017. Operational Information Active
    Oct 14 2017 08:46:37 CST The Daily RSASM for Saturday, October 14, 2017 will not be occurring due to zero participating QSEs Operational Information Active
    Oct 14 2017 04:35:01 CST Wirtz RAS has returned to service Operational Information Active
    Oct 14 2017 00:54:06 CST No sudden loss of generation greater than 450 MW occurred on October 13, 2017. Operational Information Active
    Oct 13 2017 18:23:10 CST Eskota RAS has returned to service Operational Information Active
    Oct 13 2017 08:46:59 CST The Daily RSASM for Friday, October 13, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 13 2017 04:26:57 CST ERCOT is working from primary control center. Operational Information Active
    Oct 13 2017 04:26:29 CST ERCOT has cancelled the following notice: At 04:35, ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Cancelled
    Oct 13 2017 00:04:25 CST No sudden loss of generation greater than 450 MW occurred on October 12, 2017. Operational Information Active
    Oct 12 2017 08:47:21 CST The Daily RSASM for Thursday, October 12, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 12 2017 00:04:07 CST No sudden loss of generation greater than 450 MW occurred on October 11, 2017. Operational Information Active
    Oct 11 2017 11:13:32 CST ERCOT has cancelled the following notice: ERCOT is bypassing the Cenizo and Del Sol Series Capacitors for AEP relay testing Operational Information Cancelled
    Oct 11 2017 10:26:28 CST ERCOT is bypassing the Cenizo and Del Sol Series Capacitors for AEP relay testing Operational Information Active
    Oct 11 2017 08:47:27 CST The Daily RSASM for Wednesday, October 11, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 11 2017 00:19:48 CST No sudden loss of generation greater than 450 MW occurred on October 10, 2017. Operational Information Active
    Oct 10 2017 08:50:18 CST The Daily RSASM for Tuesday, October 10, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 10 2017 07:49:47 CST At 07:39 on 10/10/2017 the Barney Davis RAS has been taken out of service and removed from RTCA Operational Information Active
    Oct 10 2017 00:00:57 CST No sudden loss of generation greater than 450 MW occurred on October 09, 2017. Operational Information Active
    Oct 09 2017 08:47:40 CST The Daily RSASM for Monday, October 9, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 09 2017 00:23:04 CST ERCOT has cancelled the following notice: Correction to earlier Transmission Watch issued at 15:50, should have read, "ERCOT is issuing a Transmission Watch for the Railroad DC Tie due to transfer capability. This may result in the curtailment of DC-Tie imports and exports to CENACE" Operational Information Cancelled
    Oct 09 2017 00:10:53 CST On October 8, 2017, A sudden loss of generation occurred at 05:00 totaling 693 MW. Frequency declined to 59.860 Hz, ERCOT load was 31, 593 MW Operational Information Active
    Oct 08 2017 22:06:41 CST Correction to earlier Transmission Watch issued at 15:50, should have read, "ERCOT is issuing a Transmission Watch for the Railroad DC Tie due to transfer capability. This may result in the curtailment of DC-Tie imports and exports to CENACE" Operational Information Active
    Oct 08 2017 16:06:42 CST ERCOT has cancelled the following notice: At 15:50, ERCOT is issuing a Transmission Watch for the South DC Ties due to issues in CENACE. This may result in the curtailment of DC-Tie imports and exports to CENACE. Operational Information Cancelled
    Oct 08 2017 15:54:49 CST At 15:50, ERCOT is issuing a Transmission Watch for the South DC Ties due to issues in CENACE. This may result in the curtailment of DC-Tie imports and exports to CENACE. Operational Information Active
    Oct 08 2017 08:47:11 CST The Daily RSASM for Sunday, October 8, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 08 2017 05:04:03 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Oct 08 2017 05:01:03 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Oct 08 2017 00:15:06 CST No sudden loss of generation greater than 450 MW occurred on October 07, 2017. Operational Information Active
    Oct 07 2017 18:15:13 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability falling below 3000 MW. Advisory Cancelled
    Oct 07 2017 17:02:19 CST ERCOT has cancelled the following notice: ERCOT has been notified that the East DC Tie has been derated to 400 MW Import/Export due to a reactive power control issue until further notice. Operational Information Cancelled
    Oct 07 2017 16:33:20 CST ERCOT is issuing an Advisory due to Physical Responsive Capability falling below 3000 MW. Advisory Active
    Oct 07 2017 15:58:55 CST ERCOT has been notified that the East DC Tie has been derated to 400 MW Import/Export due to a reactive power control issue until further notice. Operational Information Active
    Oct 07 2017 08:54:59 CST The Daily RSASM for Saturday, October 07, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 07 2017 04:39:28 CST At 04:35, ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Active
    Oct 07 2017 01:00:22 CST On October 6, 2017, A sudden loss of generation occurred at 11:16 totaling 831 MW. Frequency declined to 59.851 Hz, ERCOT load was 46, 955 MW Operational Information Active
    Oct 06 2017 11:20:11 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Oct 06 2017 08:47:25 CST The Daily RSASM for Friday, October 6, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 06 2017 02:07:57 CST No sudden loss of generation greater than 450 MW occurred on October 05, 2017. Operational Information Active
    Oct 05 2017 13:58:41 CST DC Tie Outage: The DC_S/EGPS_DC DC Tie will be unavailable from 10:00 10/12/2017 through 16:00 10/12/2017 due to a planned outage. Operational Information Active
    Oct 05 2017 08:47:07 CST The Daily RSASM for Thursday, October 05, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 05 2017 00:44:58 CST No sudden loss of generation greater than 450 MW occurred on October 04, 2017. Operational Information Active
    Oct 04 2017 08:47:07 CST The Daily RSASM for Wednesday, October 04, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 04 2017 00:48:35 CST No sudden loss of generation greater than 450 MW occurred on October 03, 2017. Operational Information Active
    Oct 03 2017 08:47:02 CST The Daily RSASM for Tuesday, October 03, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 03 2017 01:33:40 CST No sudden loss of generation greater than 450 MW occurred on October 02, 2017. Operational Information Active
    Oct 02 2017 15:43:51 CST ERCOT is bypassing the Gauss Series Capacitor for SSR mitigation Operational Information Active
    Oct 02 2017 08:52:39 CST The Daily RSASM for Monday, October 02, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 02 2017 00:04:39 CST No sudden loss of generation greater than 450 MW occurred on October 01, 2017. Operational Information Active
    Oct 01 2017 09:01:28 CST The Daily RSASM for Sunday, October 01, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Oct 01 2017 00:17:51 CST No sudden loss of generation greater than 450 MW occurred on September 30, 2017. Operational Information Active