| Jul 18, 2025 8:47:00 AM |
The Daily RSASM for 07/18/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 18, 2025 5:25:47 AM |
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
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AS Postings |
Active |
| Jul 18, 2025 12:02:19 AM |
On 07/17/2025, a sudden loss of generation occurred at 19:46 totaling 450 MW. Frequency declined to 59.957 Hz, ERCOT load was 75,010 MW.
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Operational Information |
Active |
| Jul 17, 2025 8:47:08 AM |
The Daily RSASM for 07/17/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 17, 2025 12:00:35 AM |
No sudden loss of generation greater than 450 MW occurred on July 16, 2025.
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Operational Information |
Active |
| Jul 16, 2025 8:46:27 AM |
The Daily RSASM for 07/16/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 16, 2025 12:01:34 AM |
No sudden loss of generation greater than 450 MW occurred on July 15, 2025.
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Operational Information |
Active |
| Jul 15, 2025 8:46:52 AM |
The Daily RSASM for 07/15/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 15, 2025 12:00:40 AM |
No sudden loss of generation greater than 450 MW occurred on July 14, 2025.
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Operational Information |
Active |
| Jul 14, 2025 8:46:49 AM |
The Daily RSASM for 07/14/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 14, 2025 3:09:34 AM |
No sudden loss of generation greater than 450 MW occurred on July 13, 2025.
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Operational Information |
Active |
| Jul 13, 2025 8:46:22 AM |
The Daily RSASM for 07/13/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 13, 2025 12:00:27 AM |
No sudden loss of generation greater than 450 MW occurred on July 12, 2025.
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Operational Information |
Active |
| Jul 12, 2025 8:46:36 AM |
The Daily RSASM for 07/12/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 12, 2025 12:02:08 AM |
No sudden loss of generation greater than 450 MW occurred on July 11, 2025.
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Operational Information |
Active |
| Jul 11, 2025 8:46:07 AM |
The Daily RSASM for 07/11/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 11, 2025 12:03:02 AM |
No sudden loss of generation greater than 450 MW occurred on July 10, 2025.
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Operational Information |
Active |
| Jul 10, 2025 6:59:39 PM |
ERCOT has cancelled the following notice: At 3:25 PM on 7/10/2025, 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.
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Operational Information |
Cancelled |
| Jul 10, 2025 6:35:31 PM |
ERCOT has cancelled the following notice: Test
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Operational Information |
Cancelled |
| Jul 10, 2025 6:35:22 PM |
Test
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Operational Information |
Active |
| Jul 10, 2025 9:00:00 AM |
At 3:25 PM on 7/10/2025, 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.
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Operational Information |
Active |
| Jul 10, 2025 8:47:03 AM |
The Daily RSASM for 07/10/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 10, 2025 4:04:44 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.
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Operational Information |
Cancelled |
| Jul 10, 2025 12:25:30 AM |
No sudden loss of generation greater than 450 MW occurred on July 9, 2025.
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Operational Information |
Active |
| Jul 9, 2025 3:53:53 PM |
ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop.
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Operational Information |
Active |
| Jul 9, 2025 8:47:21 AM |
The Daily RSASM for 07/09/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 9, 2025 12:20:44 AM |
No sudden loss of generation greater than 450 MW occurred on July 8, 2025.
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Operational Information |
Active |
| Jul 8, 2025 8:50:51 AM |
The Daily RSASM for 07/08/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 8, 2025 12:33:59 AM |
No sudden loss of generation greater than 450 MW occurred on July 7, 2025.
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Operational Information |
Active |
| Jul 7, 2025 8:46:47 AM |
The Daily RSASM for 07/07/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Jul 7, 2025 1:14:43 AM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at 00:15 for operating day 07/07/2025 for 1.5 MW ECRS HE 3-4, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15, 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, 1.7 MW ECRS HE 24, 4.9 MW NSPIN HE 3, 5 MW NSPIN HE 4-5, 4.9 MW NSPIN HE 6, 7.9 MW NSPIN HE 7, 7.7 MW NSPIN HE 8, 7.2 MW NSPIN HE 9, 6.7 MW NSPIN HE 10, 6.1 MW NSPIN HE 11, 5.7 MW NSPIN HE 12, 5 MW NSPIN HE 13, 4.8 MW NSPIN HE 14, 3.3 MW NSPIN HE 15-16, 3.4 MW NSPIN HE 17-18, 3.6 MW NSPIN HE 19, 3.7 MW NSPIN HE 20, 3.9 MW NSPIN HE 21, 4 MW NSPIN HE 21,
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Operational Information |
Cancelled |
| Jul 7, 2025 1:14:41 AM |
ERCOT has cancelled the following notice: 3.4 MW NSPIN HE 23, 3.7 MW NSPIN HE 24, 4.7 MW RRS HE 3, 4.8 MW RRS HE 4-6, 4.7 MW RRS HE 7, 4.6 MW RRS HE 8, 4.3 MW RRS HE 9, 4 MW RRS HE 10, 3.6 MW RRS HE 11, 3.4 MW RRS HE 12, 3.3 MW RRS HE 13, 3.1 MW RRS HE 14, 3 MW RRS HE 15, 3.1 MW RRS HE 17-19, 3.2 MW RRS HE 20, 3.4 MW RRS HE 21, 3.5 MW RRS HE 22, 3.9 MW RRS HE 23, and 4.2 MW RRS HE 24.
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Operational Information |
Cancelled |
| Jul 7, 2025 1:06:37 AM |
ERCOT will execute a SASM at 00:15 for operating day 07/07/2025 for 1.5 MW ECRS HE 3-4, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15, 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, 1.7 MW ECRS HE 24, 4.9 MW NSPIN HE 3, 5 MW NSPIN HE 4-5, 4.9 MW NSPIN HE 6, 7.9 MW NSPIN HE 7, 7.7 MW NSPIN HE 8, 7.2 MW NSPIN HE 9, 6.7 MW NSPIN HE 10, 6.1 MW NSPIN HE 11, 5.7 MW NSPIN HE 12, 5 MW NSPIN HE 13, 4.8 MW NSPIN HE 14, 3.3 MW NSPIN HE 15-16, 3.4 MW NSPIN HE 17-18, 3.6 MW NSPIN HE 19, 3.7 MW NSPIN HE 20, 3.9 MW NSPIN HE 21, 4 MW NSPIN HE 21,
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Operational Information |
Active |
| Jul 7, 2025 1:06:02 AM |
3.4 MW NSPIN HE 23, 3.7 MW NSPIN HE 24, 4.7 MW RRS HE 3, 4.8 MW RRS HE 4-6, 4.7 MW RRS HE 7, 4.6 MW RRS HE 8, 4.3 MW RRS HE 9, 4 MW RRS HE 10, 3.6 MW RRS HE 11, 3.4 MW RRS HE 12, 3.3 MW RRS HE 13, 3.1 MW RRS HE 14, 3 MW RRS HE 15, 3.1 MW RRS HE 17-19, 3.2 MW RRS HE 20, 3.4 MW RRS HE 21, 3.5 MW RRS HE 22, 3.9 MW RRS HE 23, and 4.2 MW RRS HE 24.
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Operational Information |
Active |
| Jul 7, 2025 1:05:32 AM |
ERCOT has cancelled the following notice: 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, and 1.7 MW ECRS HE 24.
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Operational Information |
Cancelled |
| Jul 7, 2025 1:05:29 AM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at 00:15 for operating day 07/07/2025 for 1.5 MW ECRS HE 3-4, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15, 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, 1.7 MW ECRS HE 24, 4.9 MW NSPIN HE 3, 5 MW NSPIN HE 4-5, 4.9 MW NSPIN HE 6, 7.9 MW NSPIN HE 7, 7.7 MW NSPIN HE 8, 7.2 MW NSPIN HE 9, 6.7 MW NSPIN HE 10, 6.1 MW NSPIN HE 11, 5.7 MW NSPIN HE 12, 5 MW NSPIN HE 13, 4.8 MW NSPIN HE 14, 3.3 MW NSPIN HE 15-16, 3.4 MW NSPIN HE 17-18, 3.6 MW NSPIN HE 19, 3.7 MW NSPIN HE 20, 3.9 MW NSPIN HE 21, 4 MW NSPIN HE 21, 3.4 MW NSPIN HE 23, 3.7 MW NSPIN HE 24, 1.5 MW ECRS HE 03-04, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15
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Operational Information |
Cancelled |
| Jul 7, 2025 12:37:23 AM |
3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, and 1.7 MW ECRS HE 24.
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Operational Information |
Active |
| Jul 7, 2025 12:36:58 AM |
ERCOT will execute a SASM at 00:15 for operating day 07/07/2025 for 1.5 MW ECRS HE 3-4, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15, 3 MW ECRS HE 16-17, 3.1 MW ECRS HE 18, 2.6 MW ECRS HE 19, 1.8 MW ECRS HE 20, 2.2 MW ECRS HE 21, 2 MW ECRS HE 22-23, 1.7 MW ECRS HE 24, 4.9 MW NSPIN HE 3, 5 MW NSPIN HE 4-5, 4.9 MW NSPIN HE 6, 7.9 MW NSPIN HE 7, 7.7 MW NSPIN HE 8, 7.2 MW NSPIN HE 9, 6.7 MW NSPIN HE 10, 6.1 MW NSPIN HE 11, 5.7 MW NSPIN HE 12, 5 MW NSPIN HE 13, 4.8 MW NSPIN HE 14, 3.3 MW NSPIN HE 15-16, 3.4 MW NSPIN HE 17-18, 3.6 MW NSPIN HE 19, 3.7 MW NSPIN HE 20, 3.9 MW NSPIN HE 21, 4 MW NSPIN HE 21, 3.4 MW NSPIN HE 23, 3.7 MW NSPIN HE 24, 1.5 MW ECRS HE 03-04, 1.4 MW ECRS HE 5, 1.5 MW ECRS HE 6, 1.7 MW ECRS HE 7, 2.7 MW ECRS HE 8, 4.3 MW ECRS HE 9, 4 MW ECRS HE 10-11, 3.4 MW ECRS HE 12, 3 MW ECRS HE 13, 3.2 MW ECRS HE 14, 2.7 MW ECRS HE 15
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Operational Information |
Active |
| Jul 7, 2025 12:00:13 AM |
On 07/06/2025, a sudden loss of generation occurred at 04:28 totaling 550 MW. Frequency declined to 59.958 Hz, ERCOT load was 48,100 MW.
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Operational Information |
Active |
| Jul 6, 2025 2:09:08 PM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at 13:35 for operating day 07/06/25 this is for ECRS HE16 35.2MW HE17 32.2MW NONSPIN HE16 79MW HE17 71.3MW.
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Operational Information |
Cancelled |
| Jul 6, 2025 1:08:52 PM |
ERCOT will execute a SASM at 13:35 for operating day 07/06/25 this is for ECRS HE16 35.2MW HE17 32.2MW NONSPIN HE16 79MW HE17 71.3MW.
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Operational Information |
Active |
| Jul 6, 2025 8:46:45 AM |
The Daily RSASM for 07/06/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Jul 6, 2025 12:00:09 AM |
No sudden loss of generation greater than 450 MW occurred on July 5, 2025.
|
Operational Information |
Active |
| Jul 5, 2025 8:47:16 AM |
The Daily RSASM for 07/05/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Jul 5, 2025 12:05:44 AM |
No sudden loss of generation greater than 450 MW occurred on July 4, 2025.
|
Operational Information |
Active |
| Jul 4, 2025 8:46:49 AM |
The Daily RSASM for 07/04/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Jul 4, 2025 12:15:56 AM |
No sudden loss of generation greater than 450 MW occurred on July 3, 2025.
|
Operational Information |
Active |
| Jul 3, 2025 7:01:46 PM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at 18:50 for operating day 07/03/25 for HE 21-23 for 9.9 MW NSPIN
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Operational Information |
Cancelled |
| Jul 3, 2025 6:15:39 PM |
ERCOT will execute a SASM at 18:50 for operating day 07/03/25 for HE 21-23 for 9.9 MW NSPIN
|
Operational Information |
Active |
| Jul 3, 2025 8:47:46 AM |
The Daily RSASM for 07/03/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Jul 3, 2025 12:06:49 AM |
No sudden loss of generation greater than 450 MW occurred on July 2, 2025.
|
Operational Information |
Active |
| Jul 2, 2025 8:46:32 AM |
The Daily RSASM for 07/02/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Jul 2, 2025 12:48:43 AM |
No sudden loss of generation greater than 450 MW occurred on July 1, 2025.
|
Operational Information |
Active |
| Jul 1, 2025 8:46:24 AM |
The Daily RSASM for 07/01/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Jul 1, 2025 12:03:43 AM |
On 06/30/2024, a sudden loss of generation occurred at 18:33 totaling 619 MW. Frequency declined to 59.955Hz, ERCOT load was 72,832 MW. Another sudden loss of generation occurred at 21:33 totaling 608 MW. Frequency declined to 59.950 Hz, ERCOT load was 66,136 MW
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Operational Information |
Active |
