MIS LOG IN

Operations Messages

This section contains important messages from the ERCOT Control Room. Refresh this screen to see current operation messages. 

Apr 2022 May 2022 Jun 2022 Jul 2022 Aug 2022 Sep 2022
Date & Time Notice Type Status
Sep 27, 2022 8:52:12 AM The Daily RSASM for Tuesday, September 27, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 27, 2022 4:11:44 AM ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Warning of K-7 until on September 27, 2022, until 04:00 CPT. Operational Information Cancelled
Sep 27, 2022 12:41:51 AM No sudden loss of generation greater than 450 MW occurred on September 26, 2022. Operational Information Active
Sep 26, 2022 10:01:37 PM The Space Weather Prediction Center has issued a GMD Warning of K-7 until on September 27, 2022, until 04:00 CPT. Operational Information Active
Sep 26, 2022 8:57:46 AM The Daily RSASM for Monday, September 26, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 26, 2022 12:04:13 AM No sudden loss of generation greater than 450 MW occurred on September 25, 2022. Operational Information Active
Sep 25, 2022 8:47:13 AM The Daily RSASM for Sunday, September 25, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 25, 2022 12:44:19 AM No sudden loss of generation greater than 450 MW occurred on September 24, 2022. Operational Information Active
Sep 24, 2022 8:46:43 AM The Daily RSASM for Saturday, September 24, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 24, 2022 1:56:03 AM At 01:50, ERCOT is issuing an OCN for taking manual action on the WESTEX IROL due to a topology change. OCN Active
Sep 24, 2022 1:55:23 AM ERCOT has cancelled the following notice: At 0150, ERCOT is issuing an OCN for taking manual action on the WESTEX IROL due to a topology change. Operational Information Cancelled
Sep 24, 2022 1:53:39 AM At 0150, ERCOT is issuing an OCN for taking manual action on the WESTEX IROL due to a topology change. Operational Information Active
Sep 24, 2022 12:45:33 AM No sudden loss of generation greater than 450 MW occurred on September 23, 2022. Operational Information Active
Sep 23, 2022 11:43:00 AM The DC_N (North) DC Tie will be unavailable from 09/27/2022 08:30 through 09/29/2022 16:00 due to a planned outage. Operational Information Active
Sep 23, 2022 8:47:01 AM The Daily RSASM for Friday, September 23, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 23, 2022 12:02:39 AM No sudden loss of generation greater than 450 MW occurred on September 22, 2022. Operational Information Active
Sep 22, 2022 8:46:16 AM The Daily RSASM for Thursday, September 22, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 22, 2022 12:27:32 AM No sudden loss of generation greater than 450 MW occurred on September 21, 2022. Operational Information Active
Sep 22, 2022 12:15:53 AM ERCOT has cancelled the following notice: “ERCOT will execute a SASM at [23:30] for operating day [09/22/22] for RegUP 37.6 MW HE2, 39.9 MW HE3, 38.8 MW HE4, 1.6 MW HE5, 23 MW HE7, 32 MW HE8, 49 MW HE11, 28.8 MW HE12, 3.6 MW HE13, 28.8 MW HE14, 8.2 MW HE15, 11.5 MW HE22, 17.3 MW HE23, 23.6 MW HE24, for RegDN 4.7 MW HE4, 11 MW HE15, 5.8 MW HE16, 37.8 MW HE17, 45.7 MW HE18, 9 MW HE19, 3 MW HE23, and RRS 9.5 MW HE7, 25 MW HE8, 21.4 MW HE9, 15.6 MW HE10, 2 MW HE13-HE14, 3.8 MW HE15, 21.2 MW HE16, 27.2 MW HE18, 13.5 MW HE20, 59.6 MW HE21, and 10.7 MW HE22. Operational Information Cancelled
Sep 21, 2022 10:53:08 PM “ERCOT will execute a SASM at [23:30] for operating day [09/22/22] for RegUP 37.6 MW HE2, 39.9 MW HE3, 38.8 MW HE4, 1.6 MW HE5, 23 MW HE7, 32 MW HE8, 49 MW HE11, 28.8 MW HE12, 3.6 MW HE13, 28.8 MW HE14, 8.2 MW HE15, 11.5 MW HE22, 17.3 MW HE23, 23.6 MW HE24, for RegDN 4.7 MW HE4, 11 MW HE15, 5.8 MW HE16, 37.8 MW HE17, 45.7 MW HE18, 9 MW HE19, 3 MW HE23, and RRS 9.5 MW HE7, 25 MW HE8, 21.4 MW HE9, 15.6 MW HE10, 2 MW HE13-HE14, 3.8 MW HE15, 21.2 MW HE16, 27.2 MW HE18, 13.5 MW HE20, 59.6 MW HE21, and 10.7 MW HE22. Operational Information Active
Sep 21, 2022 8:46:52 AM The Daily RSASM for Wednesday, September 21, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 21, 2022 3:21:31 AM ERCOT has cancelled the following notice: At 2100, ERCOT is issuing an OCN for taking manual action on the WESTEX IROL due to a topology change. OCN Cancelled
Sep 21, 2022 12:02:27 AM No sudden loss of generation greater than 450 MW occurred on September 20, 2022. Operational Information Active
Sep 20, 2022 8:48:15 AM The Daily RSASM for Tuesday, September 20, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 20, 2022 5:02:12 AM The DC_R (Railroad) DC Tie will be unavailable from 09/26/2022 06:00 through 10/31/2022 18:00 due to a planned outage. Operational Information Active
Sep 20, 2022 5:00:51 AM The DC_E (East) DC Tie will be unavailable from 09/26/2022 07:00 through 10/07/2022 12:00 due to a planned outage. Operational Information Active
Sep 20, 2022 12:00:06 AM No sudden loss of generation greater than 450 MW occurred on September 19, 2022. Operational Information Active
Sep 19, 2022 8:46:28 AM The Daily RSASM for Monday, September 19, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 19, 2022 12:17:39 AM No sudden loss of generation greater than 450 MW occurred on September 18, 2022. Operational Information Active
Sep 18, 2022 8:45:51 AM The Daily RSASM for Sunday, September 18, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 18, 2022 1:09:38 AM No sudden loss of generation greater than 450 MW occurred on September 17, 2022. Operational Information Active
Sep 17, 2022 9:06:26 PM At 2100, ERCOT is issuing an OCN for taking manual action on the WESTEX IROL due to a topology change. OCN Active
Sep 17, 2022 8:46:41 AM The Daily RSASM for Saturday, September 17, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 17, 2022 12:13:42 AM No sudden loss of generation greater than 450 MW occurred on September 16, 2022. Operational Information Active
Sep 16, 2022 8:46:19 AM The Daily RSASM for Friday, September 16, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 16, 2022 12:10:50 AM No sudden loss of generation greater than 450 MW occurred on September 15, 2022. Operational Information Active
Sep 15, 2022 8:46:43 AM The Daily RSASM for Thursday, September 15, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 15, 2022 12:08:05 AM No sudden loss of generation greater than 450 MW occurred on September 14, 2022. Operational Information Active
Sep 14, 2022 8:46:48 AM The Daily RSASM for Wednesday, September 14, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 14, 2022 12:18:55 AM No sudden loss of generation greater than 450 MW occurred on September 13, 2022. Operational Information Active
Sep 13, 2022 7:59:19 PM At 19:55, All Non-Spin has been recalled. Operational Information Active
Sep 13, 2022 4:25:58 PM At 16:20 approximately 913 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Sep 13, 2022 8:48:27 AM The Daily RSASM for Tuesday, September 13, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 13, 2022 12:18:18 AM No sudden loss of generation greater than 450 MW occurred on September 12, 2022. Operational Information Active
Sep 12, 2022 4:52:52 PM ERCOT has cancelled the following notice: At 15:25 on 09/12/2022, ERCOT will perform a site failover of its Energy and 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
Sep 12, 2022 3:45:07 PM ERCOT Emergency Base Points are Disabled Operational Information Cancelled
Sep 12, 2022 3:42:27 PM ERCOT Emergency Base Points are Enabled Operational Information Active
Sep 12, 2022 9:41:12 AM At 15:25 on 09/12/2022, ERCOT will perform a site failover of its Energy and 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
Sep 12, 2022 8:48:18 AM The Daily RSASM for Monday, September 12, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 12, 2022 12:02:18 AM No sudden loss of generation greater than 450 MW occurred on September 11, 2022. Operational Information Active
Sep 11, 2022 9:15:07 PM At 21:15, All Non-Spin has been recalled. Operational Information Active
Sep 11, 2022 8:47:26 PM At 20:41 approximately 465.8 MW of Non-Spin has been recalled, leaving approximately 317.8 MW deployed with anticipated duration through 23:59 Operational Information Active
Sep 11, 2022 6:46:52 PM At 18:41 approximately 603.9 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Sep 11, 2022 8:47:04 AM The Daily RSASM for Sunday, September 11, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 11, 2022 12:00:39 AM No sudden loss of generation greater than 450 MW occurred on September 10, 2022. Operational Information Active
Sep 10, 2022 8:47:30 AM The Daily RSASM for Saturday, September 10, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 10, 2022 12:00:42 AM No sudden loss of generation greater than 450 MW occurred on September 09, 2022. Operational Information Active
Sep 9, 2022 8:13:54 PM At 20:13, All Non-Spin has been recalled. Operational Information Active
Sep 9, 2022 7:49:04 PM At 19:44 approximately 215 MW of Non-Spin has been recalled, leaving approximately 328 MW deployed with anticipated duration through 23:59 Operational Information Active
Sep 9, 2022 1:34:07 PM At 13:32 approximately 720 MW of Non-Spin has been deployed, anticipated duration is 23:59:00. Operational Information Active
Sep 9, 2022 8:47:37 AM The Daily RSASM for Friday, September 9, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 9, 2022 4:41:51 AM ERCOT will be working from the Primary Control Center until further notice, use the OPX numbers for Taylor. Operational Information Active
Sep 9, 2022 12:04:00 AM No sudden loss of generation greater than 450 MW occurred on September 08, 2022. Operational Information Active
Sep 8, 2022 4:42:42 PM ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Active
Sep 8, 2022 8:51:17 AM The Daily RSASM for Thursday, September 8, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 8, 2022 12:38:09 AM No sudden loss of generation greater than 450 MW occurred on September 07, 2022. Operational Information Active
Sep 7, 2022 3:20:14 PM ERCOT has cancelled the following notice: The Eskota RAS has been taken out of service. Operational Information Cancelled
Sep 7, 2022 9:31:46 AM The Eskota RAS has been taken out of service. Operational Information Active
Sep 7, 2022 8:46:23 AM The Daily RSASM for Wednesday, September 7, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 7, 2022 8:31:56 AM Market price correction for SCED. This notification is an update to the message sent at 11:41 AM on 09/06/2022. While ERCOT determined that a price correction was warranted under Protocol Section 6.3 for SCED Operating Day (OD) 09/01/2022, corrected prices were not able to be posted prior to becoming final at 16:00 on 09/06/2022. As such, ERCOT intends to evaluate the significance of the price correction before seeking a review of prices by the ERCOT Board. A Market Notice will be sent with additional detail. Alert Active
Sep 7, 2022 1:20:11 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [00:55] for operating day [9/7/22] for HE [15-18] for [RRS] MW [26.9] Operational Information Cancelled
Sep 7, 2022 12:22:41 AM No sudden loss of generation greater than 450 MW occurred on September 07, 2022. Operational Information Active
Sep 7, 2022 12:17:30 AM ERCOT will execute a SASM at [00:55] for operating day [9/7/22] for HE [15-18] for [RRS] MW [26.9] Operational Information Active
Sep 6, 2022 6:14:26 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 1730 for operating day 09-06-22 for HE2000-HE2200 for 27MW’s of RRS. Operational Information Cancelled
Sep 6, 2022 5:02:27 PM ERCOT will execute a SASM at 1730 for operating day 09-06-22 for HE2000-HE2200 for 27MW’s of RRS. Operational Information Active
Sep 6, 2022 3:45:50 PM ERCOT Emergency Base Points are Disabled Operational Information Cancelled
Sep 6, 2022 3:42:26 PM ERCOT Emergency Base Points are Enabled Operational Information Active
Sep 6, 2022 2:36:54 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 1345 for operating day 09-06-22 for HE1600 for 62.4MW’s of RRS, HE1700 for 62.8MW’s of RRS, HE1800 for 62.4MW’s of RRS, HE1900 for 46.7MW’s of RRS. Operational Information Cancelled
Sep 6, 2022 1:43:38 PM ERCOT will execute a SASM at 1345 for operating day 09-06-22 for HE1600 for 62.4MW’s of RRS, HE1700 for 62.8MW’s of RRS, HE1800 for 62.4MW’s of RRS, HE1900 for 46.7MW’s of RRS. Operational Information Active
Sep 6, 2022 11:41:08 AM At 3:25 PM on 09/06/2022, ERCOT will perform 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
Sep 6, 2022 11:17:48 AM Market price correction for SCED. This notification is an update to the message sent at 11:48 AM on 09/02/2022. ERCOT has completed the analysis and has determined that a price correction is warranted under Protocol Section 6.3 for SCED Operating Day (OD) 09/01/2022. Due to a network issue, SCED failed to run for intervals 13:50 through 14:45. Protocol Section 6.5.9.2(2) states that for a SCED failure, RTM Prices will be set to the last good SCED run, prior to failure, for 15 minutes following restoration. During this timeframe, Real-Time Meter Prices (RTRMPRs) and Real-Time Settlement Point Prices (RTSPPs) were impacted for Settlement Intervals 15:00 and 15:15 . Once the system was restored, it was determined that a site failover was warranted until root cause analysis could be performed on the network failure. The site failover resulted in RTRMPRs being impacted for Settlement Intervals 17:45 and 18:00. The Price Correction will be finished by 16:00 on 9/6/2022. Alert Active
Sep 6, 2022 8:47:22 AM The Daily RSASM for Tuesday, September 6, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 6, 2022 12:17:42 AM On 09/05/2022, a sudden loss of generation occurred at 23:48:09 totaling 1207.66 MW. Frequency declined to 59.811 Hz, ERCOT load was 46,134 MW. Operational Information Active
Sep 5, 2022 11:52:42 PM ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
Sep 5, 2022 11:48:14 PM ERCOT Responsive Reserve Has Been Deployed Operational Information Active
Sep 5, 2022 9:37:50 PM At 21:35, All Non-Spin has been recalled. Operational Information Active
Sep 5, 2022 9:30:45 PM At 21:21 approximately 620 MW of Non-Spin has been recalled, leaving approximately 514 MW deployed with anticipated duration through 23:59. Operational Information Active
Sep 5, 2022 8:52:01 PM At 20:49 approximately 700 MW of Non-Spin has been recalled, leaving approximately 554 MW deployed with anticipated duration through 23:59. Operational Information Active
Sep 5, 2022 8:40:47 PM At 20:29 approximately 396 MW of Non-Spin has been recalled, leaving approximately 1354 MW deployed with anticipated duration through 23:59. Operational Information Active
Sep 5, 2022 3:06:52 PM At 14:47 approximately 1025 MW of additional Non-Spin was deployed, anticipated duration is until 23:59. Operational Information Active
Sep 5, 2022 1:38:43 PM At 13:29 approximately 1594 MW of Non-Spin has been deployed, anticipated duration is until 2359. Operational Information Active
Sep 5, 2022 8:45:56 AM The Daily RSASM for Monday, September 5, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 5, 2022 12:18:48 AM No sudden loss of generation greater than 450 MW occurred on September 04, 2022. Operational Information Active
Sep 4, 2022 3:18:16 PM At 15:17, All Non-Spin has been recalled. Operational Information Active
Sep 4, 2022 1:38:36 PM At 13:37 approximately 935 MW of Non-Spin has been deployed, anticipated duration is through 23:59. Operational Information Active
Sep 4, 2022 8:46:38 AM The Daily RSASM for Sunday, September 4, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 4, 2022 12:05:22 AM No sudden loss of generation greater than 450 MW occurred on September 03, 2022. Operational Information Active
Sep 3, 2022 9:52:45 PM At 21:52, All Non-Spin has been recalled. Operational Information Active
Sep 3, 2022 9:36:48 PM At 21:33 approximately 524 MW of Non-Spin has been recalled, leaving approximated 534 MW deployed with anticipated duration through 23:59. Operational Information Active
Sep 3, 2022 5:16:21 PM At 17:14 approximately 585 MW of Non-Spin has been recalled, leaving approximated 994 MW deployed with anticipated duration through 23:59. Operational Information Active
Sep 3, 2022 1:47:48 PM At 13:40 approximately 582 MW of Non-Spin has been deployed, for a total deployment of approximately 1561 MW, anticipated duration is through 23:59. Operational Information Active
Sep 3, 2022 12:38:31 PM At 12:37 approximately 1076 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Sep 3, 2022 8:48:15 AM The Daily RSASM for Saturday, September 3, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 3, 2022 2:02:20 AM No sudden loss of generation greater than 450 MW occurred on September 02, 2022. Operational Information Active
Sep 2, 2022 11:48:27 AM Notification of Prices Under Investigation. Due to a network issue that resulted in SCED failing to run, ERCOT is investigating the Real-Time Prices for the time window during and immediately following the event. SCED failed to run for intervals 13:50 through 14:45. Subsequently, due to the network issue, a site failover was performed which resulted in SCED interval 17:40 not running. A follow-up notice will be sent out as soon as the investigation is complete. If a Real-Time price correction is needed for OD 09/01/2022, the posting deadline is 16:00 on 09/06/2022. Alert Active
Sep 2, 2022 8:46:48 AM The Daily RSASM for Friday, September 2, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 2, 2022 12:01:15 AM No sudden loss of generation greater than 450 MW occurred on September 01, 2022. Operational Information Active
Sep 1, 2022 6:54:18 PM ERCOT has cancelled the following notice: At 5:25 PM on 09/01/2022, ERCOT will perform 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
Sep 1, 2022 5:45:14 PM ERCOT Emergency Base Points are Disabled Operational Information Cancelled
Sep 1, 2022 5:42:22 PM ERCOT Emergency Base Points are Enabled Operational Information Active
Sep 1, 2022 3:46:49 PM At 5:25 PM on 09/01/2022, ERCOT will perform 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
Sep 1, 2022 3:12:35 PM ERCOT has cancelled the following notice: Watch for HRUC Failure or time line deviation HE-16:00 Watch Cancelled
Sep 1, 2022 3:04:49 PM ERCOT has cancelled the following notice: ERCOT has declared a Watch due to the failure of the SCED process, starting at 13:45 Watch Cancelled
Sep 1, 2022 2:57:25 PM Watch for HRUC Failure or time line deviation HE-16:00 Watch Active
Sep 1, 2022 2:50:42 PM ERCOT Emergency Base Points are Disabled Operational Information Cancelled
Sep 1, 2022 2:04:30 PM ERCOT has declared a Watch due to the failure of the SCED process, starting at 13:45 Watch Active
Sep 1, 2022 1:52:22 PM ERCOT Emergency Base Points are Enabled Operational Information Active
Sep 1, 2022 10:31:30 AM ERCOT has cancelled the following notice: The BKAT RAS has been taken out of service at 10:16. Operational Information Cancelled
Sep 1, 2022 10:19:59 AM The BKAT RAS has been taken out of service at 10:16. Operational Information Active
Sep 1, 2022 8:46:31 AM The Daily RSASM for Thursday, September 1, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Sep 1, 2022 12:27:37 AM No sudden loss of generation greater than 450 MW occurred on August 31, 2022. Operational Information Active