| Mar 31, 2025 2:44:03 PM |
Notification of Real-Time Market (RTM) prices under investigation. Due to an issue during routine maintenance of the Emergency Management System (EMS), post-contingency overloads for Generic Transmission Constraints (GTCs) were incorrectly being considered in SCED for Operating Days (ODs) 3/28/2025 and 3/29/2025. ERCOT is currently investigating the impact to RTM prices. Should a price correction be warranted, a follow-up Market Notice will be issued with more details. The deadline for correcting prices before they become final is 4/1/2025 at 4PM for OD 3/28/2025 and 4/2/2025 at 4pm for OD 3/28/2025.
|
Alert |
Active |
| Mar 31, 2025 8:46:58 AM |
The Daily RSASM for 03/31/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 31, 2025 12:02:49 AM |
No sudden loss of generation greater than 450 MW occurred on March 30, 2025.
|
Operational Information |
Active |
| Mar 30, 2025 8:46:30 AM |
The Daily RSASM for 03/30/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 30, 2025 12:04:13 AM |
No sudden loss of generation greater than 450 MW occurred on March 29, 2025.
|
Operational Information |
Active |
| Mar 29, 2025 9:00:22 AM |
At 09:00, ERCOT is issuing a OCN for Saturday March 29, 2025 due to a potential wildfire risk for West Texas and the Panhandle areas in the ERCOT region until further notice.
|
OCN |
Active |
| Mar 29, 2025 8:46:03 AM |
The Daily RSASM for 03/29/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 29, 2025 12:03:33 AM |
No sudden loss of generation greater than 450 MW occurred on March 28, 2025.
|
Operational Information |
Active |
| Mar 28, 2025 11:26:34 AM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at [10:50] for operating day [03/28/2025] for:
RRS - 117 MW HE 13, 86.5 MW HE 14, 117 MW HE 15-17, 117 MW HE 22 – 24.
NONSPIN – 58.5 MW HE 13, 89 MW HE 14, 58.5 MW HE 15-17, 100.8 MW HE 18, 58.5 MW HE 19, 48.7 MW HE 20, 97.5 MW HE 21.
REGDN – 58.5 MW HE 21
|
Operational Information |
Cancelled |
| Mar 28, 2025 10:18:20 AM |
ERCOT will execute a SASM at [10:50] for operating day [03/28/2025] for:
RRS - 117 MW HE 13, 86.5 MW HE 14, 117 MW HE 15-17, 117 MW HE 22 – 24.
NONSPIN – 58.5 MW HE 13, 89 MW HE 14, 58.5 MW HE 15-17, 100.8 MW HE 18, 58.5 MW HE 19, 48.7 MW HE 20, 97.5 MW HE 21.
REGDN – 58.5 MW HE 21
|
Operational Information |
Active |
| Mar 28, 2025 8:46:30 AM |
The Daily RSASM for 03/28/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 28, 2025 1:52:40 AM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at 00:45 for operating day 03/28/25 this is for RRS HE4-HE6 4.5MW HE10 3.3MW HE11-HE12 4.7MW each hour HE13-HE14 9MW each hour HE15 8.6MW HE16-HE17 8.1MW HE18 8MW HE19 7.9MW HE20-HE21 7.6MW each hour HE22 8MW HE23-HE24 9MW each hour.
|
Operational Information |
Cancelled |
| Mar 28, 2025 12:21:43 AM |
ERCOT will execute a SASM at 00:45 for operating day 03/28/25 this is for RRS HE4-HE6 4.5MW HE10 3.3MW HE11-HE12 4.7MW each hour HE13-HE14 9MW each hour HE15 8.6MW HE16-HE17 8.1MW HE18 8MW HE19 7.9MW HE20-HE21 7.6MW each hour HE22 8MW HE23-HE24 9MW each hour.
|
Operational Information |
Active |
| Mar 28, 2025 12:00:48 AM |
No sudden loss of generation greater than 450 MW occurred on March 27, 2025.
|
Operational Information |
Active |
| Mar 27, 2025 11:37:51 PM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at 21:45 for operating day 03/28/25 this is for RRS HE1 105.5MW HE2-HE6 76.3MW each hour HE9 1.9MW HE10 7.4MW HE11 125MW HE12 105.5MW NONSPIN HE7-HE8 30.8MW each hour HE9 74.4MW HE10 68.9MW.
|
Operational Information |
Cancelled |
| Mar 27, 2025 9:19:05 PM |
ERCOT will execute a SASM at 21:45 for operating day 03/28/25 this is for RRS HE1 105.5MW HE2-HE6 76.3MW each hour HE9 1.9MW HE10 7.4MW HE11 125MW HE12 105.5MW NONSPIN HE7-HE8 30.8MW each hour HE9 74.4MW HE10 68.9MW.
|
Operational Information |
Active |
| Mar 27, 2025 1:59:46 PM |
ERCOT has cancelled the following notice: The DC_N (North) DC Tie will be unavailable from
03/24/2025 09:30 through 03/28/2025 16:00 due to a planned outage.
|
Operational Information |
Cancelled |
| Mar 27, 2025 1:27:18 PM |
ERCOT has cancelled the following notice: ERCOT will perform a SASM at [12:50] for operating day [03/27/2025] for RRS - 117 MW HE 16 – 17, 104.3 MW HE 22. 117 MW HE 23 – 24.
|
Operational Information |
Cancelled |
| Mar 27, 2025 12:19:55 PM |
ERCOT will perform a SASM at [12:50] for operating day [03/27/2025] for RRS - 117 MW HE 16 – 17, 104.3 MW HE 22. 117 MW HE 23 – 24.
|
Operational Information |
Active |
| Mar 27, 2025 8:48:10 AM |
The Daily RSASM for 03/27/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 27, 2025 12:49:05 AM |
No sudden loss of generation greater than 450 MW occurred on March 26, 2025.
|
Operational Information |
Active |
| Mar 26, 2025 3:11:11 PM |
ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from
03/17/2025 08:50 through 03/28/2025 17:00 due to a planned outage.
|
Operational Information |
Cancelled |
| Mar 26, 2025 2:52:15 PM |
ERCOT has cancelled the following notice: The ESKOTA RAS has been taken out of service/removed from RTCA.
|
Operational Information |
Cancelled |
| Mar 26, 2025 9:24:07 AM |
The ESKOTA RAS has been taken out of service/removed from RTCA.
|
Operational Information |
Active |
| Mar 26, 2025 8:45:56 AM |
The Daily RSASM for 03/26/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 26, 2025 12:08:26 AM |
No sudden loss of generation greater than 450 MW occurred on March 25, 2025.
|
Operational Information |
Active |
| Mar 25, 2025 1:28:31 PM |
ERCOT has cancelled the following notice: The ESKOTA RAS has been taken out of service/removed from RTCA.
|
Operational Information |
Cancelled |
| Mar 25, 2025 8:45:55 AM |
The Daily RSASM for 03/25/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 25, 2025 12:07:15 AM |
No sudden loss of generation greater than 450 MW occurred on March 24, 2025.
|
Operational Information |
Active |
| Mar 24, 2025 6:45:46 PM |
ERCOT has cancelled the following notice: ERCOT is issuing an OCN for a topology change in the Panhandle region.
|
OCN |
Cancelled |
| Mar 24, 2025 10:01:34 AM |
ERCOT has cancelled the following notice: ERCOT is taking manual actions to pre-posture for a 345kV outage in the Panhandle region.
|
Operational Information |
Cancelled |
| Mar 24, 2025 9:30:13 AM |
ERCOT is issuing an OCN for a topology change in the Panhandle region.
|
OCN |
Active |
| Mar 24, 2025 9:06:19 AM |
ERCOT is taking manual actions to pre-posture for a 345kV outage in the Panhandle region.
|
Operational Information |
Active |
| Mar 24, 2025 8:46:46 AM |
The Daily RSASM for 03/24/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 24, 2025 12:00:49 AM |
No sudden loss of generation greater than 450 MW occurred on March 23, 2025.
|
Operational Information |
Active |
| Mar 23, 2025 8:46:32 AM |
The Daily RSASM for 03/23/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 23, 2025 12:07:10 AM |
No sudden loss of generation greater than 450 MW occurred on March 22, 2025.
|
Operational Information |
Active |
| Mar 22, 2025 8:46:12 AM |
The Daily RSASM for 03/22/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 22, 2025 12:00:28 AM |
No sudden loss of generation greater than 450 MW occurred on March 21, 2025.
|
Operational Information |
Active |
| Mar 21, 2025 3:42:12 PM |
The DC_N (North) DC Tie will be unavailable from
03/24/2025 09:30 through 03/28/2025 16:00 due to a planned outage.
|
Operational Information |
Active |
| Mar 21, 2025 8:46:11 AM |
The Daily RSASM for 03/21/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 21, 2025 12:04:07 AM |
No sudden loss of generation greater than 450 MW occurred on March 20, 2025.
|
Operational Information |
Active |
| Mar 20, 2025 2:00:31 PM |
ERCOT has cancelled the following notice: At 00:00, ERCOT is issuing a OCN due to a potential wildfire risk for a large portion of ERCOT Region mainly West of the I-35 corridor and the Panhandle areas until further notice.
|
OCN |
Cancelled |
| Mar 20, 2025 1:47:15 PM |
ERCOT has cancelled the following notice: ERCOT is taking manual actions to pre-posture for a 345 KV outage in the DFW area.
|
Operational Information |
Cancelled |
| Mar 20, 2025 1:07:44 PM |
ERCOT is taking manual actions to pre-posture for a 345 KV outage in the DFW area.
|
Operational Information |
Active |
| Mar 20, 2025 10:55:16 AM |
The DC_N (North) DC Tie will be unavailable from
03/24/2025 09:30 through 03/28/2025 16:00 due to a planned outage.
|
Operational Information |
Active |
| Mar 20, 2025 8:46:23 AM |
The Daily RSASM for 03/20/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 20, 2025 12:06:55 AM |
No sudden loss of generation greater than 450 MW occurred on March 19, 2025.
|
Operational Information |
Active |
| Mar 19, 2025 8:46:40 AM |
The Daily RSASM for 03/19/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 19, 2025 6:22:30 AM |
The ESKOTA RAS has been taken out of service/removed from RTCA.
|
Operational Information |
Active |
| Mar 19, 2025 12:31:04 AM |
On March 18, 2025, a sudden loss of generation occurred at 22:22 totaling 777 MW. Frequency declined to 59.917 Hz, ERCOT load was 49759 MW.
|
Operational Information |
Active |
| Mar 18, 2025 4:10:24 PM |
ERCOT has cancelled the following notice: ESKOTA RAS disabled at 03:50, XXXX and ZZZZ cases have been updated
|
Operational Information |
Cancelled |
| Mar 18, 2025 8:46:22 AM |
The Daily RSASM for 03/18/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 18, 2025 12:08:04 AM |
On March 17, 2025, a sudden loss of generation occurred at 00:06 totaling 569 MW. Frequency declined to 59.941 Hz, ERCOT load was 41381 MW.
|
Operational Information |
Active |
| Mar 17, 2025 9:02:19 AM |
The DC_L (Laredo VFT) DC Tie will be unavailable from
03/17/2025 08:50 through 03/28/2025 17:00 due to a planned outage.
|
Operational Information |
Active |
| Mar 17, 2025 9:02:14 AM |
ERCOT has cancelled the following notice: ERCOT is taking manual actions to pre-posture for a 345 KV outage in the North Central ERCOT region.
|
Operational Information |
Cancelled |
| Mar 17, 2025 9:01:38 AM |
ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from
03/17/2025 07:30 through 03/28/2025 17:00 due to a planned outage.
|
Operational Information |
Cancelled |
| Mar 17, 2025 8:48:29 AM |
The Daily RSASM for 03/17/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 17, 2025 7:54:05 AM |
ERCOT is taking manual actions to pre-posture for a 345 KV outage in the North Central ERCOT region.
|
Operational Information |
Active |
| Mar 17, 2025 12:17:25 AM |
No sudden loss of generation greater than 450 MW occurred on March 16, 2025.
|
Operational Information |
Active |
| Mar 16, 2025 9:53:52 PM |
The DC_L (Laredo VFT) DC Tie will be unavailable from
03/17/2025 07:30 through 03/28/2025 17:00 due to a planned outage.
|
Operational Information |
Active |
| Mar 16, 2025 9:52:04 PM |
ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from
03/17/2025 00:00 through 03/28/2025 00:00 due to a planned outage.
|
Operational Information |
Cancelled |
| Mar 16, 2025 11:00:17 AM |
ERCOT has cancelled the following notice: At 16:15, ERCOT is issuing a Watch for 15 March 2025 until further notice due to line operations caused by a wildfire in the Western Hill Country area of Gillespie county.
TOs are instructed to:
Review Planned and existing transmission outages for the possibility of canceling or restoring equipment,
Notify ERCOT if you experience any issues as a direct result of the weather event.
|
Watch |
Cancelled |
| Mar 16, 2025 8:47:52 AM |
The Daily RSASM for 03/16/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 16, 2025 4:14:08 AM |
ESKOTA RAS disabled at 03:50, XXXX and ZZZZ cases have been updated
|
Operational Information |
Active |
| Mar 16, 2025 2:46:28 AM |
Cancelled RUC commitment at timestamp 0237 for WAP_WAP_G2 for 03/16/25 HE 17-22 due to unintended commitment.
|
Operational Information |
Active |
| Mar 16, 2025 1:05:53 AM |
No sudden loss of generation greater than 450 MW occurred on March 15, 2025.
|
Operational Information |
Active |
| Mar 15, 2025 11:37:18 PM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at a time of 22:50 for operating day 03/16/2025 for ECRS HE03 2.4MW, HE04 3MW, HE06 3.7MW HE07 4.1, HE08 4.2MW. For RRS HE05 3.4MW
|
Operational Information |
Cancelled |
| Mar 15, 2025 10:12:41 PM |
ERCOT will execute a SASM at a time of 22:50 for operating day 03/16/2025 for ECRS HE03 2.4MW, HE04 3MW, HE06 3.7MW HE07 4.1, HE08 4.2MW. For RRS HE05 3.4MW
|
Operational Information |
Active |
| Mar 15, 2025 4:34:14 PM |
At 16:15, ERCOT is issuing a Watch for 15 March 2025 until further notice due to line operations caused by a wildfire in the Western Hill Country area of Gillespie county.
TOs are instructed to:
Review Planned and existing transmission outages for the possibility of canceling or restoring equipment,
Notify ERCOT if you experience any issues as a direct result of the weather event.
|
Watch |
Active |
| Mar 15, 2025 9:19:52 AM |
The DC_L (Laredo VFT) DC Tie will be unavailable from
03/17/2025 00:00 through 03/28/2025 00:00 due to a planned outage.
|
Operational Information |
Active |
| Mar 15, 2025 8:47:32 AM |
The Daily RSASM for 03/15/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 15, 2025 12:09:32 AM |
No sudden loss of generation greater than 450 MW occurred on March 14, 2025.
|
Operational Information |
Active |
| Mar 14, 2025 9:24:36 PM |
ERCOT has cancelled the following notice: Advisory issued due to ERCOT’s Transient Security Assessment Tool is currently unavailable.
|
Advisory |
Cancelled |
| Mar 14, 2025 8:40:04 PM |
Advisory issued due to ERCOT’s Transient Security Assessment Tool is currently unavailable.
|
Advisory |
Active |
| Mar 14, 2025 8:46:49 AM |
The Daily RSASM for 03/14/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 14, 2025 12:00:31 AM |
No sudden loss of generation greater than 450 MW occurred on March 13, 2025.
|
Operational Information |
Active |
| Mar 13, 2025 8:47:00 AM |
The Daily RSASM for 03/13/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 13, 2025 12:02:37 AM |
No sudden loss of generation greater than 450 MW occurred on March 12, 2025.
|
Operational Information |
Active |
| Mar 13, 2025 12:00:33 AM |
At 00:00, ERCOT is issuing a OCN due to a potential wildfire risk for a large portion of ERCOT Region mainly West of the I-35 corridor and the Panhandle areas until further notice.
|
OCN |
Active |
| Mar 13, 2025 12:00:08 AM |
ERCOT has cancelled the following notice: At 00:00, ERCOT is issuing a OCN for Wednesday, March 12, 2025, due to a wildfire risk in a large portion of the [Hill Country, West Texas and Panhandle areas].
|
OCN |
Cancelled |
| Mar 12, 2025 11:40:42 PM |
ERCOT has cancelled the following notice: The DC_N (North) DC Tie will be unavailable from
03/12/2025 12:01 through 03/12/2025 23:59 due to a forced outage.
|
Operational Information |
Cancelled |
| Mar 12, 2025 3:13:58 PM |
ERCOT has cancelled the following notice: The DC_E (East) DC Tie will be unavailable from
03/12/2025 12:01 through 03/12/2025 23:59 due to a forced outage.
|
Operational Information |
Cancelled |
| Mar 12, 2025 3:13:51 PM |
The DC_N (North) DC Tie will be unavailable from
03/12/2025 12:01 through 03/12/2025 23:59 due to a forced outage.
|
Operational Information |
Active |
| Mar 12, 2025 12:22:38 PM |
The DC_E (East) DC Tie will be unavailable from
03/12/2025 12:01 through 03/12/2025 23:59 due to a forced outage.
|
Operational Information |
Active |
| Mar 12, 2025 11:54:31 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 |
| Mar 12, 2025 8:46:32 AM |
The Daily RSASM for 03/12/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 12, 2025 12:01:26 AM |
No sudden loss of generation greater than 450 MW occurred on March 11, 2025.
|
Operational Information |
Active |
| Mar 12, 2025 12:00:13 AM |
At 00:00, ERCOT is issuing a OCN for Wednesday, March 12, 2025, due to a wildfire risk in a large portion of the [Hill Country, West Texas and Panhandle areas].
|
OCN |
Active |
| Mar 11, 2025 12:24:34 PM |
ERCOT has cancelled the following notice: ERCOT is taking manual action for a forced outage in the North Texas area.
|
Operational Information |
Cancelled |
| Mar 11, 2025 8:46:31 AM |
The Daily RSASM for 03/11/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 11, 2025 8:33:33 AM |
ERCOT is taking manual action for a forced outage in the North Texas area.
|
Operational Information |
Active |
| Mar 11, 2025 12:00:35 AM |
No sudden loss of generation greater than 450 MW occurred on March 10, 2025.
|
Operational Information |
Active |
| Mar 10, 2025 8:13:45 PM |
At 20:12, All Non-Spin has been recalled.
|
Operational Information |
Active |
| Mar 10, 2025 8:12:28 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2025-03-10 20:12:28, END_TIME: 2025-03-10 20:12:28, DURATION: 0 Hrs 0 Mins.;
|
Operational Information |
|
| Mar 10, 2025 7:52:44 PM |
At 19:49, 648.6 MW Non-Spin has been recalled.
|
Operational Information |
Active |
| Mar 10, 2025 7:49:57 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1280.7, BEGIN_TIME: 2025-03-10 19:49:57, END_TIME: 2025-03-10 23:59:59, DURATION: 4 Hrs 10 Mins.;
|
Operational Information |
|
| Mar 10, 2025 7:33:02 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1929.3, BEGIN_TIME: 2025-03-10 20:00:00, END_TIME: 2025-03-10 23:59:59, DURATION: 3 Hrs 59 Mins.;
|
Operational Information |
|
| Mar 10, 2025 6:52:02 PM |
At 18:50 approximately 1901.90 MW of Non-Spin has been deployed, anticipated duration is 2359.
|
Operational Information |
Active |
| Mar 10, 2025 6:50:56 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1901.9, BEGIN_TIME: 2025-03-10 18:50:55, END_TIME: 2025-03-10 23:59:59, DURATION: 5 Hrs 9 Mins.;
|
Operational Information |
|
| Mar 10, 2025 6:49:04 PM |
At 18:46 approximately 1265.80 MW of Non-Spin has been deployed, anticipated duration is 2359.
|
Operational Information |
Active |
| Mar 10, 2025 6:46:32 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1265.8, BEGIN_TIME: 2025-03-10 18:46:32, END_TIME: 2025-03-10 23:59:59, DURATION: 5 Hrs 13 Mins.;
|
Operational Information |
|
| Mar 10, 2025 2:39:49 PM |
The DC_E (East) DC Tie will be unavailable from
10/26/2024 11:24 through 06/13/2025 23:59 due to a forced outage.
|
Operational Information |
Active |
| Mar 10, 2025 8:46:42 AM |
The Daily RSASM for 03/10/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 10, 2025 12:03:11 AM |
No sudden loss of generation greater than 450 MW occurred on March 9, 2025.
|
Operational Information |
Active |
| Mar 9, 2025 8:46:04 AM |
The Daily RSASM for 03/09/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 9, 2025 12:14:43 AM |
ERCOT has cancelled the following notice: At 00:01, ERCOT is issuing a OCN for Saturday, March 8, 2025, through 24:00 Saturday, March 8, 2025 due to wildfire risk in a large portion of the Central and the West Texas area. A TO has taken action to disable reclosing on approximately 18 transmission lines.
|
OCN |
Cancelled |
| Mar 9, 2025 12:05:24 AM |
No sudden loss of generation greater than 450 MW occurred on March 8, 2025.
|
Operational Information |
Active |
| Mar 8, 2025 8:46:14 AM |
The Daily RSASM for 03/08/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 8, 2025 12:10:40 AM |
No sudden loss of generation greater than 450 MW occurred on March 7, 2025.
|
Operational Information |
Active |
| Mar 8, 2025 12:02:48 AM |
At 00:01, ERCOT is issuing a OCN for Saturday, March 8, 2025, through 24:00 Saturday, March 8, 2025 due to wildfire risk in a large portion of the Central and the West Texas area. A TO has taken action to disable reclosing on approximately 18 transmission lines.
|
OCN |
Active |
| Mar 7, 2025 8:46:22 AM |
The Daily RSASM for 03/07/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 7, 2025 12:46:48 AM |
No sudden loss of generation greater than 450 MW occurred on March 6, 2025.
|
Operational Information |
Active |
| Mar 6, 2025 4:35:31 PM |
ERCOT has cancelled the following notice: At 3:25 PM on 3/06/2025, 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.
|
Operational Information |
Cancelled |
| Mar 6, 2025 4:24:48 PM |
ERCOT has cancelled the following notice: ERCOT has been notified that the Railroad DC tie has been derated to 150MW Import/Export, due to controller signal issues, until further notice.
|
Operational Information |
Cancelled |
| Mar 6, 2025 4:24:19 PM |
ERCOT has cancelled the following notice: The DC_R (Railroad) DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to
a planned or unplanned outage
|
DC Tie Curtailment Notice |
Cancelled |
| Mar 6, 2025 3:44:03 PM |
ERCOT Emergency Base Points are Disabled
|
Operational Information |
Cancelled |
| Mar 6, 2025 3:42:23 PM |
ERCOT Emergency Base Points are Enabled
|
Operational Information |
Active |
| Mar 6, 2025 1:02:25 PM |
The DC_R (Railroad) DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to
a planned or unplanned outage
|
DC Tie Curtailment Notice |
Active |
| Mar 6, 2025 9:31:46 AM |
At 3:25 PM on 3/06/2025, 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 |
| Mar 6, 2025 9:19:34 AM |
ERCOT has been notified that the Railroad DC tie has been derated to 150MW Import/Export, due to controller signal issues, until further notice.
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Operational Information |
Active |
| Mar 6, 2025 8:46:17 AM |
The Daily RSASM for 03/06/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Mar 6, 2025 3:58:40 AM |
ERCOT will be working from the primary control center until further notice, use the OPX numbers for Taylor.
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Operational Information |
Active |
| Mar 6, 2025 12:19:14 AM |
On March 5, 2025, a sudden loss of generation occurred at 04:31 totaling 795 MW. Frequency declined to 59.902 Hz, ERCOT load was 41,502 MW.
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Operational Information |
Active |
| Mar 5, 2025 7:15:17 PM |
At 19:15, All Non-Spin has been recalled.
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Operational Information |
Active |
| Mar 5, 2025 7:15:05 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2025-03-05 19:15:05, END_TIME: 2025-03-05 19:15:05, DURATION: 0 Hrs 0 Mins.;
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Operational Information |
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| Mar 5, 2025 6:33:01 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 696.3, BEGIN_TIME: 2025-03-05 19:00:00, END_TIME: 2025-03-05 23:59:01, DURATION: 4 Hrs 59 Mins.;
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Operational Information |
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| Mar 5, 2025 5:37:51 PM |
At 17:37 approximately 695 MW of Non-Spin has been deployed, anticipated duration is 23:59.
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Operational Information |
Active |
| Mar 5, 2025 5:36:53 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 695.3, BEGIN_TIME: 2025-03-05 17:36:53, END_TIME: 2025-03-05 23:59:01, DURATION: 6 Hrs 22 Mins.;
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Operational Information |
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| Mar 5, 2025 4:30:28 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 |
| Mar 5, 2025 3:46:47 PM |
ERCOT has cancelled the following notice: At 1300, ERCOT is issuing a OCN for manual action taken on the WEST TEX IROL due to topology change.
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OCN |
Cancelled |
| Mar 5, 2025 1:19:46 PM |
At 1300, ERCOT is issuing a OCN for manual action taken on the WEST TEX IROL due to topology change.
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OCN |
Active |
| Mar 5, 2025 10:15:08 AM |
ERCOT has cancelled the following notice: At 24:00, ERCOT is extending the OCN through Wednesday, March 5, 2025 at 24:00 due to wildfire risk in a large portion of the West Texas area. A TO has taken action to disable reclosing on multiple transmission lines.
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OCN |
Cancelled |
| Mar 5, 2025 8:46:54 AM |
The Daily RSASM for 03/05/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Mar 5, 2025 12:18:34 AM |
No sudden loss of generation greater than 450 MW occurred on March 4, 2025.
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Operational Information |
Active |
| Mar 5, 2025 12:10:06 AM |
ERCOT has cancelled the following notice: At 09:30, ERCOT is issuing a OCN for Tuesday, March 4, 2025, through 24:00 Tuesday, March 4, 2025 due to wildfire risk in a large portion of the West Texas area. A TO has taken action to disable reclosing on approximately 45 transmission lines.
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OCN |
Cancelled |
| Mar 5, 2025 12:09:59 AM |
At 24:00, ERCOT is extending the OCN through Wednesday, March 5, 2025 at 24:00 due to wildfire risk in a large portion of the West Texas area. A TO has taken action to disable reclosing on multiple transmission lines.
|
OCN |
Active |
| Mar 4, 2025 9:30:06 AM |
At 09:30, ERCOT is issuing a OCN for Tuesday, March 4, 2025, through 24:00 Tuesday, March 4, 2025 due to wildfire risk in a large portion of the West Texas area. A TO has taken action to disable reclosing on approximately 45 transmission lines.
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OCN |
Active |
| Mar 4, 2025 8:46:37 AM |
The Daily RSASM for 03/04/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Mar 4, 2025 12:33:35 AM |
No sudden loss of generation greater than 450 MW occurred on March 3, 2025.
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Operational Information |
Active |
| Mar 3, 2025 8:46:42 AM |
The Daily RSASM for 03/03/2025 will not be occurring due to zero participating QSEs.
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Operational Information |
Active |
| Mar 3, 2025 12:02:57 AM |
No sudden loss of generation greater than 450 MW occurred on March 2, 2025.
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Operational Information |
Active |
| Mar 2, 2025 10:25:23 PM |
At 22:25, All Non-Spin has been recalled.
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Operational Information |
Active |
| Mar 2, 2025 10:25:01 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2025-03-02 22:25:01, END_TIME: 2025-03-02 22:25:01, DURATION: 0 Hrs 0 Mins.;
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Operational Information |
|
| Mar 2, 2025 10:15:58 PM |
At 22:15, 427 MW Non-Spin has been recalled.
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Operational Information |
Active |
| Mar 2, 2025 10:15:00 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 823.5, BEGIN_TIME: 2025-03-02 22:15:00, END_TIME: 2025-03-02 23:59:00, DURATION: 1 Hrs 44 Mins.;
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Operational Information |
|
| Mar 2, 2025 10:06:29 PM |
At 22:05, 412 MW Non-Spin has been recalled.
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Operational Information |
Active |
| Mar 2, 2025 10:05:01 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1250.4, BEGIN_TIME: 2025-03-02 22:05:01, END_TIME: 2025-03-02 23:59:00, DURATION: 1 Hrs 53 Mins.;
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Operational Information |
|
| Mar 2, 2025 9:33:01 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1712.2, BEGIN_TIME: 2025-03-02 22:00:00, END_TIME: 2025-03-02 23:59:00, DURATION: 1 Hrs 59 Mins.;
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Operational Information |
|
| Mar 2, 2025 8:33:01 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 2021.0, BEGIN_TIME: 2025-03-02 21:00:00, END_TIME: 2025-03-02 23:59:00, DURATION: 2 Hrs 59 Mins.;
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Operational Information |
|
| Mar 2, 2025 7:33:01 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 2020.5, BEGIN_TIME: 2025-03-02 20:00:00, END_TIME: 2025-03-02 23:59:00, DURATION: 3 Hrs 59 Mins.;
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Operational Information |
|
| Mar 2, 2025 6:33:01 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1856.8, BEGIN_TIME: 2025-03-02 19:00:00, END_TIME: 2025-03-02 23:59:00, DURATION: 4 Hrs 59 Mins.;
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Operational Information |
|
| Mar 2, 2025 5:54:17 PM |
At 17:53 approximately 1,779 MW of Non-Spin has been deployed, anticipated duration is 23:59.
|
Operational Information |
Active |
| Mar 2, 2025 5:53:05 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1779.1, BEGIN_TIME: 2025-03-02 17:53:05, END_TIME: 2025-03-02 23:59:00, DURATION: 6 Hrs 5 Mins.;
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Operational Information |
|
| Mar 2, 2025 5:44:22 PM |
At 17:43 approximately 1,408 MW of Non-Spin has been deployed, anticipated duration is 23:59.
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Operational Information |
Active |
| Mar 2, 2025 5:43:13 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1408.0, BEGIN_TIME: 2025-03-02 17:43:13, END_TIME: 2025-03-02 23:59:00, DURATION: 6 Hrs 15 Mins.;
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Operational Information |
|
| Mar 2, 2025 8:46:41 AM |
The Daily RSASM for 03/02/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 2, 2025 12:00:45 AM |
On March 1, 2025, a sudden loss of generation occurred at 16:24 totaling 563 MW. Frequency declined to 59.931 Hz, ERCOT load was 49,252 MW.
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Operational Information |
Active |
| Mar 1, 2025 6:20:50 PM |
At 18:20, All Non-Spin has been recalled.
|
Operational Information |
Active |
| Mar 1, 2025 6:20:10 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2025-03-01 18:20:10, END_TIME: 2025-03-01 18:20:10, DURATION: 0 Hrs 0 Mins.;
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Operational Information |
|
| Mar 1, 2025 6:13:58 PM |
At 18:12, 913 MW Non-Spin has been recalled.
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Operational Information |
Active |
| Mar 1, 2025 6:10:01 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 462.2, BEGIN_TIME: 2025-03-01 18:10:01, END_TIME: 2025-03-01 23:59:00, DURATION: 5 Hrs 48 Mins.;
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Operational Information |
|
| Mar 1, 2025 5:33:02 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1375.0, BEGIN_TIME: 2025-03-01 18:00:00, END_TIME: 2025-03-01 23:59:00, DURATION: 5 Hrs 59 Mins.;
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Operational Information |
|
| Mar 1, 2025 4:58:50 PM |
At 16:57 approximately 1231 MW of Non-Spin has been deployed, anticipated duration is 23:59.
|
Operational Information |
Active |
| Mar 1, 2025 4:57:00 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1231.2, BEGIN_TIME: 2025-03-01 16:57:00, END_TIME: 2025-03-01 23:59:00, DURATION: 7 Hrs 2 Mins.;
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Operational Information |
|
| Mar 1, 2025 8:46:31 AM |
The Daily RSASM for 03/01/2025 will not be occurring due to zero participating QSEs.
|
Operational Information |
Active |
| Mar 1, 2025 12:00:18 AM |
No sudden loss of generation greater than 450 MW occurred on February 28, 2025.
|
Operational Information |
Active |
