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Operations Messages

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

Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 Apr 2026
Date & Time Notice Type Status
Apr 13, 2026 12:08:18 AM No sudden loss of generation greater than 450 MW occurred on April 12, 2026. Operational Information Active
Apr 12, 2026 12:10:20 AM No sudden loss of generation greater than 450 MW occurred on April 11, 2026. Operational Information Active
Apr 11, 2026 5:43:36 PM ERCOT has cancelled the following notice: ERCOT is taking manual action for an unsolved contingency in the Duval and Webb County areas. Operational Information Cancelled
Apr 11, 2026 5:26:34 PM ERCOT is taking manual action for an unsolved contingency in the Duval and Webb County areas. Operational Information Active
Apr 11, 2026 4:02:51 PM ERCOT has been notified of equipment clearance issues that has caused the Railroad DC Tie to be derated to 200 MW Import/Export until further notice. Operational Information Active
Apr 11, 2026 3:58:11 PM ERCOT has cancelled the following notice: ERCOT has been notified that the Railroad DC Tie has been derated to 150 MW Import/Export due to a Forced Outage until further notice. Operational Information Cancelled
Apr 11, 2026 9:50:41 AM ERCOT has cancelled the following notice: ERCOT has been notified of equipment clearance issues that has caused the Railroad DC Tie to be derated to 200 MW Import/Export until further notice. Operational Information Cancelled
Apr 11, 2026 9:41:07 AM ERCOT has been notified that the Railroad DC Tie has been derated to 150 MW Import/Export due to a Forced Outage until further notice. Operational Information Active
Apr 11, 2026 12:03:16 AM No sudden loss of generation greater than 450 MW occurred on April 10, 2026. Operational Information Active
Apr 10, 2026 6:45:32 PM ERCOT has cancelled the following notice: Advisory issued due to ERCOT’s Transient Security Assessment Tool is currently unavailable. Advisory Cancelled
Apr 10, 2026 6:27:33 PM Advisory issued due to ERCOT’s Transient Security Assessment Tool is currently unavailable. Advisory Active
Apr 10, 2026 12:14:05 AM No sudden loss of generation greater than 450 MW occurred on April 9, 2026. Operational Information Active
Apr 9, 2026 1:28:59 PM ERCOT has been notified of equipment clearance issues that has caused the Railroad DC Tie to be derated to 200 MW Import/Export until further notice. Operational Information Active
Apr 9, 2026 1:27:14 PM ERCOT has cancelled the following notice: ERCOT has been notified that the Railroad DC Tie has been derated to 150 MW Import/Export due to a planned maintenance outage until further notice. Operational Information Cancelled
Apr 9, 2026 12:55:31 PM ERCOT has been notified that the Railroad DC Tie has been derated to 150 MW Import/Export due to a planned maintenance outage until further notice. Operational Information Active
Apr 9, 2026 9:23:12 AM At 15:30 PM on 4/9/2026, 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
Apr 9, 2026 2:18:09 AM ERCOT has cancelled the following notice: ERCOT is taking manual action for an unsolved contingency in the Taylor County area. Operational Information Cancelled
Apr 9, 2026 12:21:01 AM ERCOT has cancelled the following notice: ERCOT has cancelled the following notice: ERCOT is taking manual action for an unsolved contingency in the Taylor County area. Operational Information Cancelled
Apr 9, 2026 12:20:53 AM ERCOT is taking manual action for an unsolved contingency in the Taylor County area. Operational Information Active
Apr 9, 2026 12:19:41 AM ERCOT has cancelled the following notice: ERCOT is taking manual action for an unsolved contingency in the Taylor County area. Operational Information Active
Apr 9, 2026 12:13:45 AM No sudden loss of generation greater than 450 MW occurred on April 8, 2026. Operational Information Active
Apr 8, 2026 6:11:21 PM ERCOT has cancelled the following notice: ERCOT has been notified that the Railroad DC Tie has been derated to 150 MW Import/Export due to a planned maintenance outage until further notice. Operational Information Cancelled
Apr 8, 2026 12:50:05 AM No sudden loss of generation greater than 450 MW occurred on April 7, 2026. Operational Information Active
Apr 7, 2026 12:00:52 AM No sudden loss of generation greater than 450 MW occurred on April 6, 2026. Operational Information Active
Apr 6, 2026 9:05:39 AM ERCOT has cancelled the following notice: ERCOT has been notified of equipment clearance issues that has caused the Railroad DC Tie to be derated to 200 MW Import/Export until further notice. Operational Information Cancelled
Apr 6, 2026 8:00:03 AM ERCOT has been notified that the Railroad DC Tie has been derated to 150 MW Import/Export due to a planned maintenance outage until further notice. Operational Information Active
Apr 6, 2026 12:00:47 AM No sudden loss of generation greater than 450 MW occurred on April 5, 2026. Operational Information Active
Apr 5, 2026 12:00:44 AM No sudden loss of generation greater than 450 MW occurred on April 4 2026. Operational Information Active
Apr 4, 2026 7:22:10 PM ERCOT has cancelled the following notice: ERCOT is taking manual action for an unsolved contingency in the Taylor County area. Operational Information Cancelled
Apr 4, 2026 11:14:18 AM ERCOT is taking manual action for an unsolved contingency in the Taylor County area. Operational Information Active
Apr 4, 2026 12:00:33 AM No sudden loss of generation greater than 450 MW occurred on April 3, 2026. Operational Information Active
Apr 3, 2026 7:09:40 PM ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Alert of K-7 until 19:00 04/03/2026 Operational Information Cancelled
Apr 3, 2026 7:09:34 PM ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Warning of K-7 until 19:00 04/03/2026 Operational Information Cancelled
Apr 3, 2026 11:59:08 AM The Space Weather Prediction Center has issued a GMD Alert of K-7 until 19:00 04/03/2026 Operational Information Active
Apr 3, 2026 11:41:53 AM The Space Weather Prediction Center has issued a GMD Warning of K-7 until 19:00 04/03/2026 Operational Information Active
Apr 3, 2026 11:02:19 AM ERCOT has cancelled the following notice: The DC_E (East) DC Tie will be unavailable from 03/31/2026 11:00 through 04/05/2026 17:00 due to a forced outage. Operational Information Cancelled
Apr 3, 2026 8:50:24 AM ERCOT has been notified of equipment clearance issues that has caused the Railroad DC Tie to be derated to 200 MW Import/Export until further notice. Operational Information Active
Apr 3, 2026 12:01:55 AM No sudden loss of generation greater than 450 MW occurred on April 2, 2026. Operational Information Active
Apr 2, 2026 8:18:37 AM ERCOT has cancelled the following notice: ERCOT is taking manual action for an unsolved contingency in the Taylor County area. Operational Information Cancelled
Apr 2, 2026 12:15:12 AM No sudden loss of generation greater than 450 MW occurred on April 1, 2026. Operational Information Active
Apr 1, 2026 7:45:50 AM ERCOT is taking manual action for an unsolved contingency in the Taylor County area. Operational Information Active
Apr 1, 2026 3:14:03 AM ERCOT has cancelled the following notice: ERCOT is taking manual action for an unsolved contingency in the Taylor County area. Operational Information Cancelled
Apr 1, 2026 12:06:54 AM No sudden loss of generation greater than 450 MW occurred on March 31, 2026. Operational Information Active