| Dec 31, 2023 8:46:36 AM |
The Daily RSASM for Sunday, December 31, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 31, 2023 12:00:16 AM |
No sudden loss of generation greater than 450 MW occurred on December 30, 2023. |
Operational Information |
Active |
| Dec 30, 2023 8:46:33 AM |
The Daily RSASM for Saturday, December 30, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 30, 2023 12:01:47 AM |
No sudden loss of generation greater than 450 MW occurred on December 29, 2023. |
Operational Information |
Active |
| Dec 29, 2023 8:46:37 AM |
The Daily RSASM for Friday, December 29, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 29, 2023 12:01:38 AM |
No sudden loss of generation greater than 450 MW occurred on December 28, 2023. |
Operational Information |
Active |
| Dec 28, 2023 8:47:42 AM |
The Daily RSASM for Thursday, December 28, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 28, 2023 12:08:23 AM |
No sudden loss of generation greater than 450 MW occurred on December 27, 2023. |
Operational Information |
Active |
| Dec 27, 2023 8:49:41 AM |
The Daily RSASM for Wednesday, December 27, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 27, 2023 12:12:33 AM |
No sudden loss of generation greater than 450 MW occurred on December 26, 2023. |
Operational Information |
Active |
| Dec 26, 2023 8:52:52 AM |
The Daily RSASM for Tuesday, December 26, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 26, 2023 12:13:12 AM |
No sudden loss of generation greater than 450 MW occurred on December 25, 2023. |
Operational Information |
Active |
| Dec 25, 2023 8:54:00 AM |
The Daily RSASM for Monday, December 25, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 25, 2023 12:05:35 AM |
No sudden loss of generation greater than 450 MW occurred on December 24, 2023. |
Operational Information |
Active |
| Dec 24, 2023 8:47:03 AM |
The Daily RSASM for Sunday, December 24, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 24, 2023 12:12:40 AM |
No sudden loss of generation greater than 450 MW occurred on December 23, 2023. |
Operational Information |
Active |
| Dec 23, 2023 8:49:00 AM |
The Daily RSASM for Saturday, December 23, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 23, 2023 12:04:24 AM |
No sudden loss of generation greater than 450 MW occurred on December 22, 2023. |
Operational Information |
Active |
| Dec 22, 2023 8:47:11 AM |
The Daily RSASM for Friday, December 22, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 22, 2023 12:00:21 AM |
No sudden loss of generation greater than 450 MW occurred on December 21, 2023. |
Operational Information |
Active |
| Dec 21, 2023 8:47:29 AM |
The Daily RSASM for Thursday, December 21, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 21, 2023 12:17:16 AM |
No sudden loss of generation greater than 450 MW occurred on December 20, 2023. |
Operational Information |
Active |
| Dec 20, 2023 8:47:06 AM |
The Daily RSASM for Wednesday, December 20, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 20, 2023 12:32:12 AM |
No sudden loss of generation greater than 450 MW occurred on December 19, 2023. |
Operational Information |
Active |
| Dec 19, 2023 8:47:00 AM |
The Daily RSASM for Tuesday, December 19, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 19, 2023 12:00:16 AM |
No sudden loss of generation greater than 450 MW occurred on December 18, 2023. |
Operational Information |
Active |
| Dec 18, 2023 11:14:42 PM |
The minimum monthly Ancillary Services quantities have been posted to the ERCOT Website; Data Products; Grid; Forecasts under the Projected Ancillary Service Requirements link located under the Reports & Extracts heading. The posted quantities reflect minimum requirements only. ERCOT will follow-up with a Notification if any upward adjustments to these minimum quantities are made.
https://mis.ercot.com/secure/data-products/grid/forecasts |
AS Postings |
Active |
| Dec 18, 2023 8:50:21 AM |
The Daily RSASM for Monday, December 18, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 18, 2023 12:00:36 AM |
No sudden loss of generation greater than 450 MW occurred on December 17, 2023. |
Operational Information |
Active |
| Dec 17, 2023 8:47:41 AM |
The Daily RSASM for Sunday, December 17, 2023 will not be occurring due to zero participating QSE. |
Operational Information |
Active |
| Dec 17, 2023 12:10:53 AM |
No sudden loss of generation greater than 450 MW occurred on December 16, 2023. |
Operational Information |
Active |
| Dec 16, 2023 8:48:21 AM |
The Daily RSASM for Saturday, December 16, 2023 will not be occurring due to zero participating QSE. |
Operational Information |
Active |
| Dec 16, 2023 12:00:17 AM |
No sudden loss of generation greater than 450 MW occurred on December 15, 2023. |
Operational Information |
Active |
| Dec 15, 2023 9:36:43 AM |
ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from
12/15/2023 09:20 through 12/16/2023 16:00 due to a forced outage. |
Operational Information |
Cancelled |
| Dec 15, 2023 9:20:03 AM |
The DC_L (Laredo VFT) DC Tie will be unavailable from
12/15/2023 09:20 through 12/16/2023 16:00 due to a forced outage. |
Operational Information |
Active |
| Dec 15, 2023 8:47:49 AM |
The Daily RSASM for Friday, December 15, 2023 will not be occurring due to zero participating QSE. |
Operational Information |
Active |
| Dec 15, 2023 12:03:16 AM |
On 12/14/2023, a sudden loss of generation occurred at 19:29 totaling 548 MW. Frequency declined to 59.890 Hz, ERCOT load was 47,477 MW. |
Operational Information |
Active |
| Dec 14, 2023 8:31:20 PM |
ERCOT has cancelled the following notice: ERCOT has been notified that the Railroad DC Tie has been derated to 172 MW Import/Export due to a filter breaker issue until further notice.” |
Operational Information |
Cancelled |
| Dec 14, 2023 7:36:36 PM |
ERCOT ECRS HAS BEEN RECALLED |
Operational Information |
Cancelled |
| Dec 14, 2023 7:29:36 PM |
ERCOT ECRS HAS BEEN DEPLOYED |
Operational Information |
Active |
| Dec 14, 2023 8:48:49 AM |
The Daily RSASM for Thursday, December 14, 2023 will not be occurring due to zero participating QSE. |
Operational Information |
Active |
| Dec 14, 2023 12:02:36 AM |
No sudden loss of generation greater than 450 MW occurred on December 13, 2023. |
Operational Information |
Active |
| Dec 13, 2023 8:47:44 AM |
The Daily RSASM for Wednesday December 13, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 13, 2023 3:58:52 AM |
ERCOT will be working from the primary control center until further notice, use the OPX numbers for Taylor. |
Operational Information |
Active |
| Dec 13, 2023 12:34:47 AM |
No sudden loss of generation greater than 450 MW occurred on December 12, 2023. |
Operational Information |
Active |
| Dec 12, 2023 8:50:22 AM |
The Daily RSASM for Tuesday December 12, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 12, 2023 12:00:10 AM |
No sudden loss of generation greater than 450 MW occurred on December 11, 2023. |
Operational Information |
Active |
| Dec 11, 2023 8:56:04 PM |
ERCOT has been notified that the Railroad DC Tie has been derated to 172 MW Import/Export due to a filter breaker issue until further notice.” |
Operational Information |
Active |
| Dec 11, 2023 8:49:34 AM |
The Daily RSASM for Monday December 11, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 11, 2023 3:44:25 AM |
ERCOT has cancelled the following notice: ERCOT will be working from the primary control center until further notice, use the OPX numbers for Taylor. |
Operational Information |
Cancelled |
| Dec 11, 2023 3:43:34 AM |
ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. |
Operational Information |
Active |
| Dec 11, 2023 12:25:41 AM |
No sudden loss of generation greater than 450 MW occurred on December 10, 2023. |
Operational Information |
Active |
| Dec 10, 2023 8:47:59 AM |
The Daily RSASM for Sunday, December 10, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 10, 2023 12:09:33 AM |
No sudden loss of generation greater than 450 MW occurred on December 9, 2023. |
Operational Information |
Active |
| Dec 9, 2023 8:47:35 AM |
The Daily RSASM for Saturday, December 9, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 9, 2023 12:13:10 AM |
No sudden loss of generation greater than 450 MW occurred on December 8, 2023. |
Operational Information |
Active |
| Dec 8, 2023 8:49:06 AM |
The Daily RSASM for Friday, December 8, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 8, 2023 3:46:26 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 |
| Dec 8, 2023 3:45:06 AM |
ERCOT will be working from the primary control center until further notice, use the OPX numbers for Taylor. |
Operational Information |
Active |
| Dec 8, 2023 12:00:31 AM |
No sudden loss of generation greater than 450 MW occurred on December 7, 2023. |
Operational Information |
Active |
| Dec 7, 2023 3:36:49 PM |
ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. |
Operational Information |
Active |
| Dec 7, 2023 8:47:44 AM |
The Daily RSASM for Thursday, December 7, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 7, 2023 12:00:21 AM |
No sudden loss of generation greater than 450 MW occurred on December 6, 2023. |
Operational Information |
Active |
| Dec 6, 2023 3:02:05 PM |
ERCOT has cancelled the following notice: ERCOT issued an OCN for PANHANDLE IROL due to planned outage and topology change.
|
OCN |
Cancelled |
| Dec 6, 2023 9:37:18 AM |
ERCOT issued an OCN for PANHANDLE IROL due to planned outage and topology change.
|
OCN |
Active |
| Dec 6, 2023 8:51:53 AM |
The Daily RSASM for Wednesday, December 6, 2023 will not be occurring due to zero participating QSE. |
Operational Information |
Active |
| Dec 6, 2023 12:00:31 AM |
No sudden loss of generation greater than 450 MW occurred on December 5, 2023. |
Operational Information |
Active |
| Dec 5, 2023 9:00:23 AM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at 07:45 for operating day 12/05/23 for HE10 RRS 4.5 MW, HE11 RRS 4.1 MW, HE12 RRS 3.6 MW, HE13, 15 RRS 3.5 MW, HE14 RRS 3.7 MW, HE16 RRS 3.3 MW. |
Operational Information |
Cancelled |
| Dec 5, 2023 8:51:04 AM |
The Daily RSASM for Tuesday, December 5, 2023 will not be occurring due to zero participating QSE. |
Operational Information |
Active |
| Dec 5, 2023 7:12:13 AM |
ERCOT will execute a SASM at 07:45 for operating day 12/05/23 for HE10 RRS 4.5 MW, HE11 RRS 4.1 MW, HE12 RRS 3.6 MW, HE13, 15 RRS 3.5 MW, HE14 RRS 3.7 MW, HE16 RRS 3.3 MW. |
Operational Information |
Active |
| Dec 5, 2023 3:00:24 AM |
ERCOT has cancelled the following notice: ERCOT is taking manual actions for an Unsolved Contingency in the San Angelo area. |
Operational Information |
Cancelled |
| Dec 5, 2023 12:04:10 AM |
No sudden loss of generation greater than 450 MW occurred on December 4, 2023. |
Operational Information |
Active |
| Dec 4, 2023 11:31:41 PM |
ERCOT is taking manual actions for an Unsolved Contingency in the San Angelo area. |
Operational Information |
Active |
| Dec 4, 2023 8:49:37 AM |
The Daily RSASM for Monday, December 4, 2023 will not be occurring due to zero participating QSE. |
Operational Information |
Active |
| Dec 4, 2023 12:10:22 AM |
No sudden loss of generation greater than 450 MW occurred on December 3, 2023. |
Operational Information |
Active |
| Dec 3, 2023 8:49:19 AM |
The Daily RSASM for Sunday, December 3, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 3, 2023 8:33:10 AM |
ERCOT has cancelled the following notice: At 2004, ERCOT issued an OCN for PANHANDLE IROL due to planned outage and topology change. |
OCN |
Cancelled |
| Dec 3, 2023 12:02:26 AM |
No sudden loss of generation greater than 450 MW occurred on December 2, 2023. |
Operational Information |
Active |
| Dec 2, 2023 8:47:56 AM |
The Daily RSASM for Saturday, December 2, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 2, 2023 12:52:08 AM |
No sudden loss of generation greater than 450 MW occurred on December 1, 2023. |
Operational Information |
Active |
| Dec 1, 2023 3:02:19 PM |
ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Warning of K7 until 12/1/2023 15:00. |
Operational Information |
Cancelled |
| Dec 1, 2023 9:12:12 AM |
The Space Weather Prediction Center has issued a GMD Warning of K7 until 12/1/2023 15:00. |
Operational Information |
Active |
| Dec 1, 2023 9:02:13 AM |
ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Warning of K7 until 12/1/2023 09:00. |
Operational Information |
Cancelled |
| Dec 1, 2023 9:02:03 AM |
ERCOT has cancelled the following notice: Advisory issued for a geomagnetic disturbance of K-7 until 12/1/2023 09:00. |
Advisory |
Cancelled |
| Dec 1, 2023 8:49:22 AM |
The Daily RSASM for Friday, December 1, 2023 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Dec 1, 2023 5:43:19 AM |
Advisory issued for a geomagnetic disturbance of K-7 until 12/1/2023 09:00. |
Advisory |
Active |
| Dec 1, 2023 5:35:42 AM |
The Space Weather Prediction Center has issued a GMD Warning of K7 until 12/1/2023 09:00. |
Operational Information |
Active |
| Dec 1, 2023 12:53:46 AM |
No sudden loss of generation greater than 450 MW occurred on November 30, 2023. |
Operational Information |
Active |
| Dec 1, 2023 12:24:42 AM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at [2345] for operating day [12/01/23] for REGUP HE0700 and HE1800 in the amount of 9MWs, and HE0800 in the amount of 7.6MWs. |
Operational Information |
Cancelled |
