Operations Messages
This section contains important messages from the ERCOT Control Room. Refresh this screen to see current operation messages.
| Date & Time |
Notice |
Type |
Status |
| Dec 4, 2025 8:47:50 AM |
The Daily RSASM for 12/04/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Dec 4, 2025 12:02:49 AM |
On December 3, 2025, a sudden loss of generation occurred at 09:01 totaling 510 MW. Frequency declined to 59.975 Hz, ERCOT load was 56,470 MW.
|
Operational Information |
Active |
| Dec 3, 2025 8:00:14 PM |
ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance of K-7 until 20:00 12/03/2025
|
Operational Information |
Cancelled |
| Dec 3, 2025 8:00:05 PM |
ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Warning of K-7 or Greater until 12/03/2025 20:00.
|
Operational Information |
Cancelled |
| Dec 3, 2025 3:05:35 PM |
Advisory issued for a geomagnetic disturbance of K-7 until 20:00 12/03/2025
|
Operational Information |
Active |
| Dec 3, 2025 2:43:05 PM |
The Space Weather Prediction Center has issued a GMD Warning of K-7 or Greater until 12/03/2025 20:00.
|
Operational Information |
Active |
| Dec 3, 2025 9:41:04 AM |
ERCOT has cancelled the following notice: ERCOT is taking manual action for an unsolved contingency in the West Texas region.
|
Operational Information |
Cancelled |
| Dec 3, 2025 8:45:29 AM |
The Daily RSASM for 12/03/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Dec 3, 2025 12:10:21 AM |
No sudden loss of generation greater than 450 MW occurred on December 2, 2025.
|
Operational Information |
Active |
| Dec 2, 2025 8:39:24 PM |
ERCOT is taking manual action for an unsolved contingency in the West Texas region.
|
Operational Information |
Active |
| Dec 2, 2025 8:45:22 AM |
The Daily RSASM for 12/02/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Dec 2, 2025 12:20:38 AM |
No sudden loss of generation greater than 450 MW occurred on December 1, 2025.
|
Operational Information |
Active |
| Dec 1, 2025 9:48:41 AM |
ERCOT has cancelled the following notice: ERCOT has been notified that the Railroad DC Tie has been derated to 170MW Import/Export due to equipment issues until further notice.
|
Operational Information |
Cancelled |
| Dec 1, 2025 8:46:15 AM |
The Daily RSASM for 12/01/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Dec 1, 2025 12:01:01 AM |
No sudden loss of generation greater than 450 MW occurred on November 30, 2025.
|
Operational Information |
Active |
