Public Notices

    This section contains public market notifications required by protocols as well as other market messages ERCOT may post for market transparency. Notices are categorized by types and can be filtered by selecting the desired category. ERCOT began archiving public notices November 3, 2011.

    Jun 2017 Jul 2017 Aug 2017 Sep 2017 Oct 2017 Nov 2017
    Date Message Type Status
    Sep 30 2017 19:01:24 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Sep 30 2017 14:27:54 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Sep 30 2017 08:46:50 CST The Daily RSASM for Saturday, September 30, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 30 2017 00:41:23 CST No sudden loss of generation greater than 450 MW occurred on September 29, 2017. Operational Information Active
    Sep 29 2017 08:47:16 CST The Daily RSASM for Friday, September 29, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 29 2017 02:09:11 CST No sudden loss of generation greater than 450 MW occurred on September 28, 2017. Operational Information Active
    Sep 28 2017 08:48:38 CST The Daily RSASM for Thursday, September 28, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 28 2017 04:06:04 CST ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Warning of K7 level until 09/28/2017 04:00 . Operational Information Cancelled
    Sep 28 2017 04:05:48 CST ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance of a K-7 level until 09/28/17 04:00 Operational Information Cancelled
    Sep 28 2017 02:38:19 CST No sudden loss of generation greater than 450 MW occurred on September 27, 2017. Operational Information Active
    Sep 28 2017 01:30:56 CST Advisory issued for a geomagnetic disturbance of a K-7 level until 09/28/17 04:00 Operational Information Active
    Sep 28 2017 00:56:41 CST The Space Weather Prediction Center has issued a GMD Warning of K7 level until 09/28/2017 04:00 . Operational Information Active
    Sep 27 2017 08:47:02 CST The Daily RSASM for Wednesday September 27, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 27 2017 04:56:35 CST On September 26, 2017, a sudden loss of generation occurred at 1505 totaling 459mw. Frequency declined to 59.950Hz, ERCOT load was 54879Mw. Operational Information Active
    Sep 27 2017 04:50:57 CST ERCOT has cancelled the following notice: No sudden loss of generation greater than 450 MW occurred on September 26, 2017. Operational Information Cancelled
    Sep 27 2017 00:12:48 CST No sudden loss of generation greater than 450 MW occurred on September 26, 2017. Operational Information Active
    Sep 26 2017 08:46:34 CST The Daily RSASM for Tuesday September 26, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 26 2017 00:15:10 CST No sudden loss of generation greater than 450 MW occurred on September 25, 2017. Operational Information Active
    Sep 25 2017 17:40:02 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Sep 25 2017 16:00:01 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Sep 25 2017 09:59:12 CST The ESKOTA RAS has been taken out of service/removed from RTCA. Operational Information Active
    Sep 25 2017 08:48:52 CST The Daily RSASM for Monday September 25, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 25 2017 08:09:48 CST The Barney Davis RAS has been taken out of service/removed from RTCA. Operational Information Active
    Sep 25 2017 00:08:19 CST No sudden loss of generation greater than 450 MW occurred on September 24, 2017. Operational Information Active
    Sep 24 2017 08:49:21 CST The Daily RSASM for Sunday September 24, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 24 2017 00:06:50 CST No sudden loss of generation greater than 450 MW occurred on September 23, 2017. Operational Information Active
    Sep 23 2017 08:47:45 CST The Daily RSASM for Saturday September 23, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 23 2017 00:23:13 CST No sudden loss of generation greater than 450 MW occurred on September 22, 2017. Operational Information Active
    Sep 22 2017 08:46:15 CST The Daily RSASM for Friday September 22, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 22 2017 00:22:19 CST No sudden loss of generation greater than 450 MW occurred on September 21, 2017. Operational Information Active
    Sep 21 2017 15:25:39 CST Frequency Measurable Events: Report tracking Frequency Measurable Events (FMEs) as of Sep 21, 2017 is available. Operational Instruction Active
    Sep 21 2017 08:47:05 CST The Daily RSASM for Thursday September 21, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 21 2017 00:08:17 CST No sudden loss of generation greater than 450 MW occurred on September 20, 2017. Operational Information Active
    Sep 20 2017 14:17:35 CST ERCOT has cancelled the following notice: The Barney Davis RAS has been turned off for a planned outage. Operational Information Cancelled
    Sep 20 2017 10:02:51 CST ERCOT Emergency Base Points are Disabled Operational Information Cancelled
    Sep 20 2017 10:02:39 CST ERCOT Emergency Base Points are Enabled Operational Information Active
    Sep 20 2017 08:46:47 CST The Daily RSASM for Wednesday September 20, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 20 2017 06:23:27 CST The Barney Davis RAS has been turned off for a planned outage. Operational Information Active
    Sep 20 2017 04:47:21 CST The minimum monthly Ancillary Services quantities have been posted to the ERCOT Market Information System (MIS) under the Projected Ancillary Service Requirements link under the Medium-Term System Adequacy heading. The posted quantities reflect minimum requirements only. ERCOT will follow-up with a Notification if any upward adjustments to these minimum quantities are made. AS Postings Active
    Sep 20 2017 01:07:34 CST No sudden loss of generation greater than 450 MW occurred on September 19, 2017. Operational Information Active
    Sep 19 2017 23:48:00 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Sep 19 2017 23:44:00 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Sep 19 2017 17:53:29 CST The DC_R (Railroad)DC Tie is available for normal operations. Operational Information Active
    Sep 19 2017 17:24:56 CST ERCOT has cancelled the following notice: The DC_R DC Tie will be unavailable from 14:50 09/15/2017 through 17:00 09/22/2017 due to a forced outage. Operational Information Cancelled
    Sep 19 2017 10:22:36 CST ERCOT has cancelled the following notice: At 09:50, ERCOT is issuing a Watch due to HRUC not completing for HE11 due to failure / timeline deviation. Operational Information Cancelled
    Sep 19 2017 09:51:14 CST At 09:50, ERCOT is issuing a Watch due to HRUC not completing for HE11 due to failure / timeline deviation. Operational Information Active
    Sep 19 2017 08:47:47 CST The Daily RSASM for Tuesday September 19, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 19 2017 00:32:40 CST No sudden loss of generation greater than 450 MW occurred on September 18, 2017. Operational Information Active
    Sep 18 2017 08:47:30 CST The Daily RSASM for Monday September 18, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 18 2017 08:46:21 CST The Wirtz RAS has been taken out of service/removed from RTCA. Operational Information Active
    Sep 18 2017 00:17:46 CST No sudden loss of generation greater than 450 MW occurred on September 17, 2017. Operational Information Active
    Sep 17 2017 08:47:17 CST The Daily RSASM for Sunday, September 17, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 17 2017 00:43:30 CST No sudden loss of generation greater than 450 MW occurred on September 16, 2017. Operational Information Active
    Sep 16 2017 18:10:49 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Sep 16 2017 15:45:04 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Sep 16 2017 08:46:44 CST The Daily RSASM for Saturday, September 16, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 16 2017 00:16:39 CST On September 15, 2017, a sudden loss of generation occurred at 17:50 totaling 810 MW. Frequency declined to 59.838 Hz, ERCOT load was 59, 204 MW. Operational Information Active
    Sep 15 2017 19:52:48 CST Wirtz RAS is in service Operational Information Active
    Sep 15 2017 17:54:16 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Sep 15 2017 17:50:56 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Sep 15 2017 17:46:23 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Sep 15 2017 16:07:16 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Sep 15 2017 16:01:17 CST The WIRTZ RAS has been taken out of service. Operational Information Active
    Sep 15 2017 15:21:55 CST DC Tie Outage: The DC_R DC Tie will be unavailable from 14:50 09/15/2017 through 17:00 09/22/2017 due to a forced outage. Operational Information Active
    Sep 15 2017 10:42:06 CST The WIRTZ RAS is back in service at 1035. Operational Information Active
    Sep 15 2017 08:53:41 CST The Daily RSASM for Friday, September 15, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 15 2017 00:24:24 CST No sudden loss of generation greater than 450 MW occurred on September 14, 2017. Operational Information Active
    Sep 14 2017 08:48:37 CST The Daily RSASM for Thursday, September 14, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 14 2017 03:17:08 CST No sudden loss of generation greater than 450 MW occurred on September 13, 2017. Operational Information Active
    Sep 13 2017 18:08:58 CST ERCOT has cancelled the following notice: ERCOT will be perform migration on its Energy (EMS) and Market Management System (MMS) Sept 13, 2017, during a maintenance window of 15:30 – 17:00. Operational Information Cancelled
    Sep 13 2017 17:17:58 CST ERCOT has cancelled the following notice: The Barney Davis RAS has been disabled due to planed outage in the area. Operational Information Cancelled
    Sep 13 2017 15:18:25 CST ERCOT will be perform migration on its Energy (EMS) and Market Management System (MMS) Sept 13, 2017, during a maintenance window of 15:30 – 17:00. Operational Information Active
    Sep 13 2017 08:46:47 CST The Daily RSASM for Wednesday, September 13, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 13 2017 07:45:10 CST The Barney Davis RAS has been disabled due to planed outage in the area. Operational Information Active
    Sep 13 2017 00:11:49 CST No sudden loss of generation greater than 450 MW occurred on September 12, 2017. Operational Information Active
    Sep 12 2017 17:09:22 CST ERCOT has cancelled the following notice: ERCOT is performing a migration on it's Market Management System from 15:36 to 17:00. Operational Information Cancelled
    Sep 12 2017 16:35:49 CST ERCOT Emergency Base Points are Disabled Operational Information Cancelled
    Sep 12 2017 16:32:25 CST ERCOT Emergency Base Points are Enabled Operational Information Active
    Sep 12 2017 15:39:39 CST ERCOT is performing a migration on it's Market Management System from 15:36 to 17:00. Operational Information Active
    Sep 12 2017 08:46:09 CST The Daily RSASM for Tuesday, September 12, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 12 2017 00:39:25 CST No sudden loss of generation greater than 450 MW occurred on September 11, 2017. Operational Information Active
    Sep 11 2017 15:13:00 CST ERCOT has cancelled the following notice: The Eskota RAS has been taken out of service. Operational Information Cancelled
    Sep 11 2017 10:44:43 CST The Eskota RAS has been taken out of service. Operational Information Active
    Sep 11 2017 08:45:52 CST The Daily RSASM for Monday, September 11, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 11 2017 00:01:04 CST No sudden loss of generation greater than 450 MW occurred on September 10, 2017. Operational Information Active
    Sep 10 2017 22:58:05 CST ERCOT has cancelled the following notice: The DC_S DC Tie will be unavailable from 00:23 09/10/2017 through 16:00 09/11/2017 due to a forced outage. Operational Information Cancelled
    Sep 10 2017 21:22:51 CST ERCOT has cancelled the following notice: The DC_L DC Tie will be unavailable from 17:23 09/10/2017 through 16:00 09/11/2017 due to a forced outage. Operational Information Cancelled
    Sep 10 2017 19:16:18 CST ERCOT has cancelled the following notice: The DC_R DC Tie will be unavailable from 18:45 09/10/2017 through 18:00 09/15/2017 due to a forced outage. Operational Information Cancelled
    Sep 10 2017 18:50:07 CST DC Tie Outage: The DC_R DC Tie will be unavailable from 18:45 09/10/2017 through 18:00 09/15/2017 due to a forced outage. Operational Information Active
    Sep 10 2017 18:40:26 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Sep 10 2017 18:27:53 CST DC Tie Outage: The DC_L DC Tie will be unavailable from 17:23 09/10/2017 through 16:00 09/11/2017 due to a forced outage. Operational Information Active
    Sep 10 2017 18:26:44 CST DC Tie Outage: The DC_S DC Tie will be unavailable from 00:23 09/10/2017 through 16:00 09/11/2017 due to a forced outage. Operational Information Active
    Sep 10 2017 14:49:43 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Sep 10 2017 08:47:06 CST The Daily RSASM for Sunday, September 10, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 10 2017 00:08:59 CST On September 9, 2017, a sudden loss of generation occurred at 12:09 totaling 527 MW. Frequency declined to 59.892 Hz, ERCOT load was 42, 266 MW. Operational Information Active
    Sep 09 2017 18:10:56 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
    Sep 09 2017 14:53:52 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
    Sep 09 2017 12:12:29 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Sep 09 2017 12:09:45 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Sep 09 2017 08:49:07 CST The Daily RSASM for Saturday, September 09, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 09 2017 06:29:13 CST ERCOT has cancelled the following notice: The East DC Tie will be unavailable from 02:15 09/09/2017 through 12:00 09/09/2017 due to a forced outage. Operational Information Cancelled
    Sep 09 2017 04:48:14 CST ERCOT has cancelled the following notice: The DC_E DC Tie will be unavailable from 00:04 09/09/2017 through 00:05 09/09/2017 due to a forced outage. Operational Information Cancelled
    Sep 09 2017 04:47:59 CST ERCOT has cancelled the following notice: The DC_E DC Tie will be unavailable from 02:15 09/09/2017 through 00:04 09/09/2017 due to a forced outage. Operational Information Cancelled
    Sep 09 2017 04:47:40 CST DC Tie Outage: The East DC Tie will be unavailable from 02:15 09/09/2017 through 12:00 09/09/2017 due to a forced outage. Operational Information Active
    Sep 09 2017 03:55:28 CST DC Tie Outage: The DC_E DC Tie will be unavailable from 00:04 09/09/2017 through 00:05 09/09/2017 due to a forced outage. Operational Information Active
    Sep 09 2017 03:03:29 CST DC Tie Outage: The DC_E DC Tie will be unavailable from 02:15 09/09/2017 through 00:04 09/09/2017 due to a forced outage. Operational Information Active
    Sep 09 2017 00:01:08 CST No sudden loss of generation greater than 450 MW occurred on September 8, 2017. Operational Information Active
    Sep 08 2017 16:00:47 CST ERCOT has cancelled the following notice: The Space Weather Prediction Center has extended the GMD Warning of K-index of 7 or greater (G3 or greater until 09/08/2017 1600 CPT. Operational Information Cancelled
    Sep 08 2017 16:00:38 CST ERCOT has cancelled the following notice: The Space Weather Prediction Center has extended the GMD Warning of K-index of 7 or greater (G3 or greater until 09/08/2017 1600 CPT. Operational Information Cancelled
    Sep 08 2017 16:00:29 CST ERCOT has cancelled the following notice: The Space Weather Prediction Center has extended the GMD Warning of K-index of 7 or greater (G3 or greater until 09/08/2017 1600 CPT. Operational Information Cancelled
    Sep 08 2017 16:00:25 CST ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance of K7/G3 until 13:00 CPT 9/8/2017 Operational Information Cancelled
    Sep 08 2017 14:30:01 CST Notification of Market Price Correction: Market price correction for SCED. The Real-Time price correction files for OD 09/06/2017 have been posted on MIS. Please note: 1. The file with timestamp 20170908.135651146 contains 15-minute reliability deployment price adder correction data, where SettlementPointName=’PRICE_RTRDP’ indicates reliability deployment price adder. 2. The file with time stamp 20170908.135651155 contains SCED interval reliability deployment price adder correction data, where SettlementPointName=’PRICE_RTRDP’ indicates reliability deployment price adder. Alert Active
    Sep 08 2017 12:19:37 CST Advisory issued for a geomagnetic disturbance of K7/G3 until 13:00 CPT 9/8/2017 Operational Information Active
    Sep 08 2017 12:18:53 CST ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance of K8/G4 until 10:00 CPT 9/8/2017 Operational Information Cancelled
    Sep 08 2017 12:18:44 CST ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance of K8/G4 until 10:00 CPT 9/8/2017 Operational Information Cancelled
    Sep 08 2017 10:04:19 CST The Space Weather Prediction Center has extended the GMD Warning of K-index of 7 or greater (G3 or greater until 09/08/2017 1600 CPT. Operational Information Active
    Sep 08 2017 10:03:22 CST ERCOT has cancelled the following notice: The Space Weather Prediction Center has extended the GMD Warning K-index of 7 or greater (G3 or greater) until 9/8 /17 15:00 UTC (10:00 CPT) Operational Information Cancelled
    Sep 08 2017 10:03:16 CST ERCOT has cancelled the following notice: The Space Weather Prediction Center has extended the GMD Warning K-index of 7 or greater (G3 or greater) until 9/8 /17 15:00 UTC (10:00 CPT) Operational Information Cancelled
    Sep 08 2017 10:02:56 CST ERCOT has cancelled the following notice: The Space Weather Prediction Center has extended the GMD Warning K-index of 7 or greater (G3 or greater) until 9/8 /17 15:00 UTC (10:00 EDT) Operational Information Cancelled
    Sep 08 2017 09:15:58 CST The Daily RSASM for Friday, September 08, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 08 2017 09:00:42 CST Advisory issued for a geomagnetic disturbance of K8/G4 until 10:00 CPT 9/8/2017 Operational Information Active
    Sep 08 2017 08:59:13 CST ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance of K8/G3 until 10:00 CPT. Operational Information Cancelled
    Sep 08 2017 08:49:16 CST Advisory issued for a geomagnetic disturbance of K8/G3 until 10:00 CPT. Operational Information Active
    Sep 08 2017 08:47:42 CST ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued an alert due to the GMD Warning K-index increased to an 8 or greater (G4 or greater) until 9/8 /17 15:00 UTC (10:00 CPT) Operational Information Cancelled
    Sep 08 2017 08:35:17 CST The Space Weather Prediction Center has issued an alert due to the GMD Warning K-index increased to an 8 or greater (G4 or greater) until 9/8 /17 15:00 UTC (10:00 CPT) Operational Information Active
    Sep 08 2017 07:52:21 CST The Space Weather Prediction Center has extended the GMD Warning K-index of 7 or greater (G3 or greater) until 9/8 /17 15:00 UTC (10:00 CPT) Operational Information Active
    Sep 08 2017 07:49:26 CST The Space Weather Prediction Center has extended the GMD Warning K-index of 7 or greater (G3 or greater) until 9/8 /17 15:00 UTC (10:00 EDT) Operational Information Active
    Sep 08 2017 07:45:59 CST ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a warning of a Geomagnetic K-index of 7 or greater (G3 or greater) extended until 9/8 /17 15:00 UTC (10:00 EDT) Operational Information Cancelled
    Sep 08 2017 07:45:25 CST The Space Weather Prediction Center has issued a warning of a Geomagnetic K-index of 7 or greater (G3 or greater) extended until 9/8 /17 15:00 UTC (10:00 EDT) Operational Information Active
    Sep 08 2017 04:34:09 CST ERCOT has cancelled the following notice: Warning of a Geomagnetic K-index of 7 or greater (G3 or greater) extended until 9/8 /17 15:00 UTC (10:00 EDT) Operational Information Cancelled
    Sep 08 2017 04:32:58 CST ERCOT is working from primary control center. Operational Information Active
    Sep 08 2017 04:30:31 CST ERCOT has cancelled the following notice: ERCOT is working from alternate control center. Operational Information Cancelled
    Sep 08 2017 01:08:33 CST Warning of a Geomagnetic K-index of 7 or greater (G3 or greater) extended until 9/8 /17 15:00 UTC (10:00 EDT) Operational Information Active
    Sep 08 2017 01:08:10 CST ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance moving from K-7 to K-8 until Sept 08 2017 at 0100 Operational Information Cancelled
    Sep 07 2017 21:11:51 CST Advisory issued for a geomagnetic disturbance moving from K-7 to K-8 until Sept 08 2017 at 0100 Operational Information Active
    Sep 07 2017 21:11:20 CST ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance K7 until Sept 8 2017 at 0100. Operational Information Cancelled
    Sep 07 2017 20:36:07 CST Advisory issued for a geomagnetic disturbance K7 until Sept 8 2017 at 0100. Operational Information Active
    Sep 07 2017 20:35:28 CST ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance of K-8 until Sept 08 2017 at 0100. Operational Information Cancelled
    Sep 07 2017 20:11:45 CST Advisory issued for a geomagnetic disturbance of K-8 until Sept 08 2017 at 0100. Operational Information Active
    Sep 07 2017 20:11:23 CST ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance K7 until Sept 8 2017 at 0100. Operational Information Cancelled
    Sep 07 2017 19:02:29 CST Advisory issued for a geomagnetic disturbance K7 until Sept 8 2017 at 0100. Operational Information Active
    Sep 07 2017 19:01:50 CST ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Warning of K7 from Sept 7, 2017 at 1800 until Sept 8, 2017 at 0100 Operational Information Cancelled
    Sep 07 2017 18:28:32 CST The Space Weather Prediction Center has issued a GMD Warning of K7 from Sept 7, 2017 at 1800 until Sept 8, 2017 at 0100 Operational Information Active
    Sep 07 2017 16:25:19 CST ERCOT is working from alternate control center. Operational Information Active
    Sep 07 2017 15:36:08 CST Frequency Measurable Events: Report tracking Frequency Measurable Events (FMEs) as of Sep 07, 2017 is available. Operational Instruction Active
    Sep 07 2017 08:48:37 CST The Daily RSASM for Thursday, September 07, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 07 2017 03:42:07 CST No sudden loss of generation greater than 450 MW occurred on September 6, 2017. Operational Information Active
    Sep 07 2017 03:42:02 CST No sudden loss of generation greater than 450 MW occurred on September 6, 2017. Operational Information Active
    Sep 06 2017 17:03:15 CST Notification of Market Price Correction: Market price correction for SCED. ERCOT has identified a need to perform price corrections for SCED intervals from 0:03:11 to 0:45:11 on OD 9/6/2017, which covers Real-Time Market 15-min Settlement Intervals from Interval Ending 0:15 to Interval Ending 1:00. Complete price correction data will be posted on the Market Information System as soon as possible but no later than 4PM of 9/8/2017, Friday. Alert Active
    Sep 06 2017 12:16:56 CST ERCOT has cancelled the following notice: The Barney Davis RAS is currently disabled due to a forced transmission outage in the area. Operational Information Cancelled
    Sep 06 2017 08:48:05 CST The Daily RSASM for Wednesday, September 06, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 06 2017 03:10:07 CST No sudden loss of generation greater than 450 MW occurred on September 5, 2017. Operational Information Active
    Sep 06 2017 00:03:53 CST ERCOT Emergency Base Points are Disabled Operational Information Cancelled
    Sep 06 2017 00:02:21 CST ERCOT Emergency Base Points are Enabled Operational Information Active
    Sep 05 2017 20:28:46 CST The Barney Davis RAS is currently disabled due to a forced transmission outage in the area. Operational Information Active
    Sep 05 2017 11:09:16 CST ERCOT has cancelled the following notice: At 1200 08/30/2017 ERCOT issued an OCN for unplanned transmission outages that may impact reliability. Operational Information Cancelled
    Sep 05 2017 08:47:30 CST The Daily RSASM for Tuesday, September 05, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 05 2017 03:03:43 CST No sudden loss of generation greater than 450 MW occurred on September 4, 2017. Operational Information Active
    Sep 04 2017 08:47:45 CST The Daily RSASM for Monday, September 04, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 04 2017 00:23:39 CST No sudden loss of generation greater than 450 MW occurred on September 3, 2017. Operational Information Active
    Sep 03 2017 08:45:55 CST The Daily RSASM for Sunday, September 03, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 03 2017 01:23:15 CST No sudden loss of generation greater than 450 MW occurred on September 2, 2017. Operational Information Active
    Sep 02 2017 08:52:15 CST The Daily RSASM for Saturday, September 02, 2017 will not be occurring due to zero participating QSEs. Operational Information Active
    Sep 02 2017 00:19:29 CST On September 1, 2017, a sudden loss of generation occurred at 16:56 totaling 455 MW. Frequency declined to 59.894 Hz, ERCOT load was 57, 078 MW. Another sudden loss of generation occurred at 21:41 totaling 1, 209 MW. Frequency declined to 59.762 Hz, ERCOT load was 47, 627 MW. Operational Information Active
    Sep 01 2017 21:44:20 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Sep 01 2017 16:59:28 CST ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
    Sep 01 2017 16:56:16 CST ERCOT Responsive Reserve Has Been Deployed Operational Information Active
    Sep 01 2017 12:52:15 CST ERCOT has cancelled the following notice: Barney Davis RAS has been taken out of service/ removed from RTCA Operational Information Cancelled
    Sep 01 2017 08:45:54 CST The Daily RSASM for Friday, September 01, 2017 will not be occurring due to zero participating QSEs Operational Information Active
    Sep 01 2017 00:01:07 CST No sudden loss of generation greater than 450 MW occurred on August 31, 2017. Operational Information Active