| Dec 7, 2025 12:01:09 AM |
No sudden loss of generation greater than 450 MW occurred on December 6, 2025.
|
Operational Information |
Active |
| Dec 6, 2025 6:15:39 PM |
At 18:14, All Non-Spin has been recalled.
|
Operational Information |
Active |
| Dec 6, 2025 5:57:46 PM |
At 17:51, 740 MW of Non - Spin has been recalled, the remaining amount is 675.6 MW
|
Operational Information |
Active |
| Dec 6, 2025 4:49:03 PM |
CORRECTION TO "At 16:43 approximately 1385 MW of Non-Spin has been deployed, anticipated duration is 23:59." The amount of NSPIN deployed was 1415.7 MW
|
Operational Instruction |
Active |
| Dec 6, 2025 4:44:49 PM |
At 16:43 approximately 1385 MW of Non-Spin has been deployed, anticipated duration is 23:59.
|
Operational Information |
Active |
| Dec 6, 2025 3:30:22 PM |
The issue with the DAM Shift Factors report has been resolved for Operating Day 12/07/2025.
|
Operational Information |
Active |
| Dec 6, 2025 1:41:42 PM |
ERCOT has discovered an issue with the following MIS postings for Operating Day 12/07/2025: DAM Shift Factors. These issues are currently under investigation. A notice will be sent out once the issue has been resolved.
|
Operational Information |
Active |
| Dec 6, 2025 12:02:50 AM |
On December 5, 2025, a sudden loss of generation occurred at 06:15 totaling 582 MW. Frequency declined to 59.953 Hz, ERCOT load was 56,014 MW.
|
Operational Information |
Active |
| Dec 5, 2025 1:53:19 AM |
At 01:53, The RTC+B cutover is complete and ERCOT is operating on RTC+B Energy & Market Management Systems.
|
Operational Information |
Active |
| Dec 5, 2025 12:02:29 AM |
No sudden loss of generation greater than 450 MW occurred on December 4, 2025.
|
Operational Information |
Active |
| Dec 4, 2025 11:27:09 PM |
At 23:56, ERCOT plans to perform a cutover of its Energy & Market Management Systems to RTC+B systems.
|
Operational Information |
Active |
| 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 12:43:43 PM |
Frequency Measurable Events: Report tracking Frequency Measurable Events (FMEs) as of 12/01/2025 is available.
|
Operational Instruction |
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 |
