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Operations Messages

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

Aug 2021 Sep 2021 Oct 2021 Nov 2021 Dec 2021 Jan 2022
Date & Time Notice Type Status
Jan 22, 2022 8:46:25 AM The Daily RSASM for Saturday, January 22, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 22, 2022 12:00:56 AM No sudden loss of generation greater than 450 MW occurred on January 21, 2022 Operational Information Active
Jan 21, 2022 9:03:03 PM ERCOT has cancelled the following notice: OCN issued for the predicted extreme cold weather event for the ERCOT Region for Thursday, January 20, 2022 through Friday, January 21, 2022. OCN Cancelled
Jan 21, 2022 9:02:48 PM ERCOT has cancelled the following notice: Advisory issued for the predicted extreme cold weather event for the ERCOT Region for Thursday, January 20, 2022 through Friday, January 21, 2022. Advisory Cancelled
Jan 21, 2022 2:08:08 PM DAM is complete, DRUC will begin at 1430. Operational Information Active
Jan 21, 2022 1:30:26 PM ERCOT has postponed the deadline for the posting of the DAM solution for Operating Day 01/22/2022 due to manual action and DAM restart. Advisory Active
Jan 21, 2022 12:53:56 PM ERCOT has taken a manual action and restarted the DAM for Operating Day January 22, 2022. ERCOT will follow up with a market notice. Operational Information Active
Jan 21, 2022 8:46:25 AM The Daily RSASM for Friday, January 21, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 21, 2022 12:46:06 AM No sudden loss of generation greater than 450 MW occurred on January 20, 2022. Operational Information Active
Jan 20, 2022 8:46:49 AM The Daily RSASM for Thursday, January 20, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 20, 2022 1:03:02 AM No sudden loss of generation greater than 450 MW occurred on January 19, 2022. Operational Information Active
Jan 19, 2022 10:03:42 AM Advisory issued for the predicted extreme cold weather event for the ERCOT Region for Thursday, January 20, 2022 through Friday, January 21, 2022. Advisory Active
Jan 19, 2022 8:49:04 AM The Daily RSASM for Wednesday, January 19, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 19, 2022 12:23:26 AM No sudden loss of generation greater than 450 MW occurred on January 18, 2022. Operational Information Active
Jan 18, 2022 3:16:30 PM ERCOT has cancelled the following notice: At 15:25 on 01/18/2022, 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
Jan 18, 2022 9:36:38 AM At 15:25 on 01/18/2022, 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
Jan 18, 2022 9:30:10 AM OCN issued for the predicted extreme cold weather event for the ERCOT Region for Thursday, January 20, 2022 through Friday, January 21, 2022. OCN Active
Jan 18, 2022 8:46:25 AM The Daily RSASM for Tuesday, January 18, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 18, 2022 1:00:00 AM No sudden loss of generation greater than 450 MW occurred on January 17, 2022. Operational Information Active
Jan 17, 2022 8:48:56 AM The Daily RSASM for Monday, January 17, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 17, 2022 12:00:53 AM No sudden loss of generation greater than 450 MW occurred on January 16, 2022. Operational Information Active
Jan 16, 2022 7:09:26 PM ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
Jan 16, 2022 7:03:14 PM ERCOT Responsive Reserve Has Been Deployed Operational Information Active
Jan 16, 2022 8:46:08 AM The Daily RSASM for Sunday, January 16, 2022 will not be occurring due to zero participating QSE’s Operational Information Active
Jan 16, 2022 1:59:19 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 0140 for 01/16/2022 for [HE 04] 21.4 MW reg up [HE 05] 20.9 MW reg up [HE 06] 21.4 reg up and [HE 04] 10.5 [HE 05] 10.3 [HE 06] 10.5 MW reg dwn. Operational Information Cancelled
Jan 16, 2022 1:21:19 AM ERCOT will execute a SASM at 0140 for 01/16/2022 for [HE 04] 21.4 MW reg up [HE 05] 20.9 MW reg up [HE 06] 21.4 reg up and [HE 04] 10.5 [HE 05] 10.3 [HE 06] 10.5 MW reg dwn. Operational Information Active
Jan 16, 2022 12:43:42 AM No sudden loss of generation greater than 450 MW occurred on January 15, 2022. Operational Information Active
Jan 15, 2022 7:04:57 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 1835 for 01/15/2022 for [HE 21] 2.70 MW reg up and 72 MW RRS; [HE 22-24] 73 MW RRS. Operational Information Cancelled
Jan 15, 2022 6:22:39 PM ERCOT will execute a SASM at 1835 for 01/15/2022 for [HE 21] 2.70 MW reg up and 72 MW RRS; [HE 22-24] 73 MW RRS. Operational Information Active
Jan 15, 2022 8:46:11 AM The Daily RSASM for Saturday, January 15, 2022 will not be occurring due to zero participating QSE’s Operational Information Active
Jan 15, 2022 12:07:16 AM No sudden loss of generation greater than 450 MW occurred on January 14, 2022. Operational Information Active
Jan 14, 2022 8:46:33 AM The Daily RSASM for Friday, January 14, 2022 will not be occurring due to zero participating QSE’s Operational Information Active
Jan 14, 2022 4:07:45 AM 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
Jan 14, 2022 12:03:12 AM On 1/13/2022, a sudden loss of generation occurred at 18:06 totaling 552 MW. Frequency declined to 59.876 Hz, ERCOT load was 41,594 MW. Operational Information Active
Jan 13, 2022 6:10:06 PM ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
Jan 13, 2022 6:06:34 PM ERCOT Responsive Reserve Has Been Deployed Operational Information Active
Jan 13, 2022 4:08:27 PM ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Active
Jan 13, 2022 8:47:22 AM The Daily RSASM for Thursday, January 13, 2022 will not be occurring due to zero participating QSE’s Operational Information Active
Jan 13, 2022 12:17:19 AM No sudden loss of generation greater than 450 MW occurred on January 12, 2022. Operational Information Active
Jan 12, 2022 8:46:42 AM The Daily RSASM for Wednesday, January 12, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 12, 2022 12:10:19 AM No sudden loss of generation greater than 450 MW occurred on January 11, 2022. Operational Information Active
Jan 11, 2022 9:18:08 AM ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
Jan 11, 2022 9:15:00 AM ERCOT Responsive Reserve Has Been Deployed Operational Information Active
Jan 11, 2022 8:46:56 AM The Daily RSASM for Tuesday, January 11, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 11, 2022 12:25:21 AM No sudden loss of generation greater than 450 MW occurred on January 10, 2022. Operational Information Active
Jan 10, 2022 8:46:48 AM The Daily RSASM for Monday, January 10, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 10, 2022 3:22:19 AM ERCOT has cancelled the following notice: Advisory issued due to ERCOT’s Voltage Security Assessment Tool is currently unavailable. Advisory Cancelled
Jan 10, 2022 3:01:14 AM Advisory issued due to ERCOT’s Voltage Security Assessment Tool is currently unavailable. Advisory Active
Jan 10, 2022 12:30:39 AM No sudden loss of generation greater than 450 MW occurred on January 09, 2022. Operational Information Active
Jan 9, 2022 8:46:17 AM The Daily RSASM for Sunday, January 9, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 9, 2022 12:09:38 AM No sudden loss of generation greater than 450 MW occurred on January 08, 2022. Operational Information Active
Jan 8, 2022 8:47:01 AM The Daily RSASM for Saturday, January 8, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 8, 2022 12:26:20 AM No sudden loss of generation greater than 450 MW occurred on January 07, 2022. Operational Information Active
Jan 7, 2022 10:03:48 AM Cancelled RUC commitment at timestamp [01/07/2022 & 09:54] for [OECCS CC2_1] for [01/07/2022 & HE12] due to unintended commitment. Operational Information Active
Jan 7, 2022 8:46:14 AM The Daily RSASM for Friday, January 7, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 7, 2022 12:06:12 AM No sudden loss of generation greater than 450 MW occurred on January 06, 2022. Operational Information Active
Jan 6, 2022 8:49:37 AM The Daily RSASM for Thursday, January 6, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 6, 2022 12:18:16 AM No sudden loss of generation greater than 450 MW occurred on January 05, 2022. Operational Information Active
Jan 5, 2022 10:11:29 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 21:40 for operating day [01/05/22] for HE24 for 90 MW RRS Operational Information Cancelled
Jan 5, 2022 9:07:35 PM ERCOT will execute a SASM at 21:40 for operating day [01/05/22] for HE24 for 90 MW RRS Operational Information Active
Jan 5, 2022 8:47:11 AM The Daily RSASM for Wednesday, January 5, 2022 will not be occurring due to zero participating QSEs Operational Information Active
Jan 5, 2022 1:02:31 AM No sudden loss of generation greater than 450 MW occurred on January 04, 2022. Operational Information Active
Jan 4, 2022 11:31:17 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 10:50 for operating day 1/04/22 for HE1300-HE1500 for 3MW’s of RRS. Operational Information Cancelled
Jan 4, 2022 10:27:05 AM ERCOT will execute a SASM at 10:50 for operating day 1/04/22 for HE1300-HE1500 for 3MW’s of RRS. Operational Information Active
Jan 4, 2022 8:47:36 AM The Daily RSASM for Tuesday, January 4, 2022 will not be occurring due to zero participating QSE’s. Operational Information Active
Jan 4, 2022 12:28:38 AM No sudden loss of generation greater than 450 MW occurred on January 03, 2022. Operational Information Active
Jan 3, 2022 12:02:10 PM ERCOT has cancelled the following notice: Advisory issued for the predicted extreme cold weather event for the ERCOT Region. Advisory Cancelled
Jan 3, 2022 8:49:24 AM The Daily RSASM for Monday, January 3, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Jan 3, 2022 12:09:12 AM No sudden loss of generation greater than 450 MW occurred on January 02, 2022. Operational Information Active
Jan 2, 2022 8:49:06 AM The Daily RSASM for Sunday, January 2, 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Jan 2, 2022 12:02:44 AM No sudden loss of generation greater than 450 MW occurred on January 01, 2022. Operational Information Active
Jan 1, 2022 11:30:07 AM Advisory issued for the predicted extreme cold weather event for the ERCOT Region. Advisory Active
Jan 1, 2022 8:47:24 AM The Daily RSASM for Saturday, January 1 2022 will not be occurring due to zero participating QSEs. Operational Information Active
Jan 1, 2022 12:03:01 AM No sudden loss of generation greater than 450 MW occurred on December 31, 2021. Operational Information Active