| Apr 18, 2024 5:55:25 PM |
ERCOT has cancelled the following notice: Advisory issued due to ERCOTs Voltage Security Assessment Tool is currently unavailable. |
Advisory |
Cancelled |
| Apr 18, 2024 5:00:13 PM |
Advisory issued due to ERCOTs Voltage Security Assessment Tool is currently unavailable. |
Advisory |
Active |
| Apr 18, 2024 8:49:25 AM |
The Daily RSASM for Thursday, April 18, 2024, will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 18, 2024 12:03:52 AM |
No sudden loss of generation greater than 450 MW occurred on April 17, 2024. |
Operational Information |
Active |
| Apr 17, 2024 11:00:38 PM |
ERCOT has cancelled the following notice: ERCOT has executed the OSA process due to a possible future Emergency Condition of reserve capacity deficiency or reliability problem projected for OSA Period Tuesday April 16, 2024, at HE 1500 through Wednesday April 17, 2024, at HE 2300. Outages not moved voluntarily prior to Friday April 12, 2024, at 10:00 will be considered an OSA.
|
OCN |
Cancelled |
| Apr 17, 2024 11:00:20 PM |
ERCOT has cancelled the following notice: At 10:00, ERCOT is updating an AAN due to conditions changing and a possible future Emergency Condition of reserve capacity deficiency beginning Tuesday April 16, 2024, at HE 1500 through Wednesday April 17, 2024, at HE 2300. ERCOT may Delay/Withdraw Approved or Accepted Resource Outages. ERCOT may seek up to 4,867 MW from an OAE and then make the OSA. On April 12, 2024, at 10:00 ERCOT will execute an OSA if deemed necessary. Please notify ERCOT by email aan@ercot.com if a specific resource cannot be considered in the OAE. |
OCN |
Cancelled |
| Apr 17, 2024 11:00:07 PM |
ERCOT has cancelled the following notice: At 10:00, ERCOT issued an AAN due to a possible future Emergency Condition of reserve capacity deficiency beginning Tuesday, April 16, 2024 at HE 1400 through Wednesday, April 17, 2024 at HE 2300. ERCOT may Delay/Withdraw Approved or Accepted Resource Outages. ERCOT may seek 9,950 MW from an OAE and then make the OSA. On Friday, April 12, 2024 at 10:00 ERCOT will execute an OAE if deemed necessary. Please notify ERCOT by email at aan@ercot.com if a specific resource cannot be considered in the OAE. |
OCN |
Cancelled |
| Apr 17, 2024 8:48:09 AM |
The Daily RSASM for Wednesday April 17, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 17, 2024 12:04:50 AM |
No sudden loss of generation greater than 450 MW occurred on April 16, 2024. |
Operational Information |
Active |
| Apr 16, 2024 8:32:50 PM |
ERCOT ECRS HAS BEEN RECALLED |
Operational Information |
Cancelled |
| Apr 16, 2024 7:58:26 PM |
ERCOT ECRS HAS BEEN DEPLOYED |
Operational Information |
Active |
| Apr 16, 2024 8:46:42 AM |
The Daily RSASM for Tuesday April 16, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 16, 2024 12:05:58 AM |
No sudden loss of generation greater than 450 MW occurred on April 15, 2024. |
Operational Information |
Active |
| Apr 15, 2024 8:48:52 AM |
The Daily RSASM for Monday, April 15, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 15, 2024 8:08:24 AM |
The DC_E (East) DC Tie will be unavailable from
04/15/2024 08:06 through 05/24/2024 16:00 due to a planned outage. |
Operational Information |
Active |
| Apr 15, 2024 8:07:18 AM |
ERCOT has cancelled the following notice: The DC_E (East) DC Tie will be unavailable from
04/15/2024 08:00 through 05/24/2024 16:00 due to a planned outage. |
Operational Information |
Cancelled |
| Apr 15, 2024 7:46:46 AM |
The DC_R (Railroad) DC Tie will be unavailable from
04/15/2024 07:45 through 05/03/2024 15:00 due to a planned outage. |
Operational Information |
Active |
| Apr 15, 2024 7:45:41 AM |
ERCOT has cancelled the following notice: The DC_R (Railroad) DC Tie will be unavailable from
04/15/2024 07:00 through 05/03/2024 15:00 due to a planned outage. |
Operational Information |
Cancelled |
| Apr 15, 2024 12:08:34 AM |
No sudden loss of generation greater than 450 MW occurred on April 14, 2024. |
Operational Information |
Active |
| Apr 14, 2024 8:47:39 AM |
The Daily RSASM for Sunday, April 14, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 14, 2024 12:07:33 AM |
On 04/13/2024, a sudden loss of generation occurred at 18:05:08 totaling 447.30 MW. Frequency declined to 59.931 Hz, ERCOT load was 51,322 MW. |
Operational Information |
Active |
| Apr 13, 2024 10:00:22 AM |
The DC_R (Railroad) DC Tie will be unavailable from
04/15/2024 07:00 through 05/03/2024 15:00 due to a planned outage. |
Operational Information |
Active |
| Apr 13, 2024 8:47:25 AM |
The Daily RSASM for Saturday, April 13, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 13, 2024 7:44:40 AM |
The DC_E (East) DC Tie will be unavailable from
04/15/2024 08:00 through 05/24/2024 16:00 due to a planned outage. |
Operational Information |
Active |
| Apr 13, 2024 12:23:01 AM |
No sudden loss of generation greater than 450 MW occurred on April 12, 2024. |
Operational Information |
Active |
| Apr 12, 2024 10:46:04 AM |
ERCOT has executed the OSA process due to a possible future Emergency Condition of reserve capacity deficiency or reliability problem projected for OSA Period Tuesday April 16, 2024, at HE 1500 through Wednesday April 17, 2024, at HE 2300. Outages not moved voluntarily prior to Friday April 12, 2024, at 10:00 will be considered an OSA.
|
OCN |
Active |
| Apr 12, 2024 10:00:40 AM |
At 10:00, ERCOT is updating an AAN due to conditions changing and a possible future Emergency Condition of reserve capacity deficiency beginning Tuesday April 16, 2024, at HE 1500 through Wednesday April 17, 2024, at HE 2300. ERCOT may Delay/Withdraw Approved or Accepted Resource Outages. ERCOT may seek up to 4,867 MW from an OAE and then make the OSA. On April 12, 2024, at 10:00 ERCOT will execute an OSA if deemed necessary. Please notify ERCOT by email aan@ercot.com if a specific resource cannot be considered in the OAE. |
OCN |
Active |
| Apr 12, 2024 8:48:10 AM |
The Daily RSASM for Friday, April 12, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 12, 2024 3:47:56 AM |
ERCOT will be working from the primary control center until further notice, use the OPX numbers for Taylor. |
Operational Information |
Active |
| Apr 12, 2024 3:47:43 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 |
| Apr 12, 2024 12:02:07 AM |
No sudden loss of generation greater than 450 MW occurred on April 11, 2024. |
Operational Information |
Active |
| Apr 11, 2024 10:00:11 PM |
ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. |
Operational Information |
Active |
| Apr 11, 2024 10:00:14 AM |
At 10:00, ERCOT issued an AAN due to a possible future Emergency Condition of reserve capacity deficiency beginning Tuesday, April 16, 2024 at HE 1400 through Wednesday, April 17, 2024 at HE 2300. ERCOT may Delay/Withdraw Approved or Accepted Resource Outages. ERCOT may seek 9,950 MW from an OAE and then make the OSA. On Friday, April 12, 2024 at 10:00 ERCOT will execute an OAE if deemed necessary. Please notify ERCOT by email at aan@ercot.com if a specific resource cannot be considered in the OAE. |
OCN |
Active |
| Apr 11, 2024 8:47:31 AM |
The Daily RSASM for Thursday, April 11, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 11, 2024 12:04:38 AM |
No sudden loss of generation greater than 450 MW occurred on April 10, 2024. |
Operational Information |
Active |
| Apr 10, 2024 10:25:11 PM |
ERCOT has cancelled the following notice: The DC_E (East) DC Tie will be unavailable from
04/10/2024 20:55 through 04/10/2024 23:59 due to a forced outage. |
Operational Information |
Cancelled |
| Apr 10, 2024 9:00:46 PM |
The DC_E (East) DC Tie will be unavailable from
04/10/2024 20:55 through 04/10/2024 23:59 due to a forced outage. |
Operational Information |
Active |
| Apr 10, 2024 8:48:42 AM |
The Daily RSASM for Wednesday, April 10, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 10, 2024 6:36:45 AM |
ERCOT has cancelled the following notice: ERCOT is taking manual action to pre-posture for a 345kV planned outage in the South Texas area. |
Operational Information |
Cancelled |
| Apr 10, 2024 5:51:15 AM |
On 04/09/2024, a sudden loss of generation occurred at 06:12 totaling 560 MW. Frequency declined to 59.938 Hz, ERCOT load was 43,990 MW. |
Operational Information |
Active |
| Apr 10, 2024 5:23:15 AM |
ERCOT has cancelled the following notice: No sudden loss of generation greater than 450 MW occurred on April 9, 2024 |
Operational Information |
Cancelled |
| Apr 10, 2024 5:20:05 AM |
ERCOT is taking manual action to pre-posture for a 345kV planned outage in the South Texas area. |
Operational Information |
Active |
| Apr 10, 2024 12:18:22 AM |
No sudden loss of generation greater than 450 MW occurred on April 9, 2024 |
Operational Information |
Active |
| Apr 9, 2024 11:49:21 AM |
ERCOT has cancelled the following notice: ERCOT will execute a SASM at [10:30] for operating day [04/09/24] for REGUP for HE16 - HE17 80MW each hour; HE19 100MW; HE21 30MW; HE23 97.1MW, for REGDN- HE14 47.2MW; HE15 60MW; HE17 20MW; HE22 - HE23 80MW for each hour, for ECRS- HE20 - HE21 75MWRRS- HE15 32.1MW; HE18 39.5MW; HE20 45MW; HE21 15MW; HE22 62.5MW |
Operational Information |
Cancelled |
| Apr 9, 2024 9:47:50 AM |
ERCOT will execute a SASM at [10:30] for operating day [04/09/24] for REGUP for HE16 - HE17 80MW each hour; HE19 100MW; HE21 30MW; HE23 97.1MW, for REGDN- HE14 47.2MW; HE15 60MW; HE17 20MW; HE22 - HE23 80MW for each hour, for ECRS- HE20 - HE21 75MWRRS- HE15 32.1MW; HE18 39.5MW; HE20 45MW; HE21 15MW; HE22 62.5MW |
Operational Information |
Active |
| Apr 9, 2024 8:51:31 AM |
The Daily RSASM for Tuesday, April 9, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 9, 2024 12:03:55 AM |
On 04/08/2024, a sudden loss of generation occurred at 22:29 totaling 472.01 MW. Frequency declined to 59.940Hz, ERCOT load was 49,059 MW. |
Operational Information |
Active |
| Apr 8, 2024 1:48:40 PM |
At 13:48, All Non-Spin has been recalled. |
Operational Information |
Active |
| Apr 8, 2024 1:47:57 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2024-04-08 13:47:56, END_TIME: 2024-04-08 13:47:56, DURATION: 0 Hrs 0 Mins.; |
Operational Information |
|
| Apr 8, 2024 1:42:09 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 934.5, BEGIN_TIME: 2024-04-08 13:42:09, END_TIME: 2024-04-08 23:59:59, DURATION: 10 Hrs 17 Mins.; |
Operational Information |
|
| Apr 8, 2024 1:39:18 PM |
ERCOT has cancelled the following notice: ERCOT is taking manual actions to pre-posture slower ramping resources to allow faster ramping resources to be available during the solar eclipse. |
Operational Information |
Cancelled |
| Apr 8, 2024 1:33:02 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1800.0, BEGIN_TIME: 2024-04-08 14:00:00, END_TIME: 2024-04-08 23:59:59, DURATION: 9 Hrs 59 Mins.; |
Operational Information |
|
| Apr 8, 2024 12:47:21 PM |
At 12:46 approximately 2433 MW of Non-Spin has been deployed, anticipated duration is 23:59.
|
Operational Information |
Active |
| Apr 8, 2024 12:46:06 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 2433.7, BEGIN_TIME: 2024-04-08 12:46:05, END_TIME: 2024-04-08 23:59:59, DURATION: 11 Hrs 13 Mins.; |
Operational Information |
|
| Apr 8, 2024 11:31:22 AM |
ERCOT is taking manual actions to pre-posture slower ramping resources to allow faster ramping resources to be available during the solar eclipse. |
Operational Information |
Active |
| Apr 8, 2024 11:03:20 AM |
The DC_E (East) DC Tie will be unavailable from
04/15/2024 08:00 through 05/24/2024 16:00 due to a planned outage. |
Operational Information |
Active |
| Apr 8, 2024 8:48:35 AM |
The Daily RSASM for Monday, April 8, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 8, 2024 12:09:00 AM |
No sudden loss of generation greater than 450 MW occurred on April 7, 2024 |
Operational Information |
Active |
| Apr 7, 2024 8:48:02 AM |
The Daily RSASM for 04/07/2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 7, 2024 12:10:59 AM |
No sudden loss of generation greater than 450 MW occurred on April 6, 2024 |
Operational Information |
Active |
| Apr 6, 2024 8:47:23 AM |
The Daily RSASM for 04/06/2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 6, 2024 12:12:07 AM |
No sudden loss of generation greater than 450 MW occurred on April 5, 2024 |
Operational Information |
Active |
| Apr 5, 2024 9:02:24 AM |
ERCOT has cancelled the following notice: ERCOT is taking manual actions to pre-posture for a 345 KV planned outage in the Panhandle area. |
Operational Information |
Cancelled |
| Apr 5, 2024 8:47:17 AM |
The Daily RSASM for 04/05/2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 5, 2024 8:15:32 AM |
ERCOT is taking manual actions to pre-posture for a 345 KV planned outage in the Panhandle area. |
Operational Information |
Active |
| Apr 5, 2024 12:19:19 AM |
No sudden loss of generation greater than 450 MW occurred on April 4, 2024 |
Operational Information |
Active |
| Apr 4, 2024 8:00:47 PM |
At 20:00, All Non-Spin has been recalled. |
Operational Information |
Active |
| Apr 4, 2024 8:00:26 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2024-04-04 20:00:26, END_TIME: 2024-04-04 20:00:26, DURATION: 0 Hrs 0 Mins.; |
Operational Information |
|
| Apr 4, 2024 7:33:01 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1351.1, BEGIN_TIME: 2024-04-04 20:00:00, END_TIME: 2024-04-04 23:59:59, DURATION: 3 Hrs 59 Mins.; |
Operational Information |
|
| Apr 4, 2024 6:36:38 PM |
At 18:35 approximately 1140 MW of Non-Spin has been deployed, anticipated duration is 23:59.
|
Operational Information |
Active |
| Apr 4, 2024 6:35:03 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1140.2, BEGIN_TIME: 2024-04-04 18:35:03, END_TIME: 2024-04-04 23:59:59, DURATION: 5 Hrs 24 Mins.; |
Operational Information |
|
| Apr 4, 2024 6:33:01 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1008.2, BEGIN_TIME: 2024-04-04 19:00:00, END_TIME: 2024-04-04 23:59:59, DURATION: 4 Hrs 59 Mins.; |
Operational Information |
|
| Apr 4, 2024 6:27:23 PM |
At 18:26 approximately 997 MW of Non-Spin has been deployed, anticipated duration is 23:59.
|
Operational Information |
Active |
| Apr 4, 2024 6:26:31 PM |
CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 997.9, BEGIN_TIME: 2024-04-04 18:26:31, END_TIME: 2024-04-04 23:59:59, DURATION: 5 Hrs 33 Mins.; |
Operational Information |
|
| Apr 4, 2024 8:48:09 AM |
The Daily RSASM for 04/04/2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 4, 2024 12:28:51 AM |
No sudden loss of generation greater than 450 MW occurred on April 3, 2024 |
Operational Information |
Active |
| Apr 3, 2024 2:48:48 PM |
Market price correction for SCED. ERCOT has identified a need to perform a price correction for the Real-Time Settlement Intervals 11:30, 11:45, and 12:00 on Operating Day 4/2/2024. This was due to SCED failing while trying to process invalid telemetry. In accordance with ERCOT Protocol Section 6.5.9.2(2), in the event of a SCED failure, the Locational Marginal Prices (LMPs) from the last valid SCED run (11:10) will be held for all impacted SCED intervals including a 15 minute period after the first valid SCED run after the issue is resolved (11:32). Price Correction data will be posted to the ERCOT MIS by 16:00 on 4/4/204. |
Alert |
Active |
| Apr 3, 2024 8:51:32 AM |
The Daily RSASM for Wednesday, April 3, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 3, 2024 12:30:23 AM |
No sudden loss of generation greater than 450 MW occurred on April 2, 2024 |
Operational Information |
Active |
| Apr 2, 2024 11:39:29 AM |
ERCOT has cancelled the following notice: ERCOT has declared a Watch due to the failure of the SCED process, starting at 11:22 |
Watch |
Cancelled |
| Apr 2, 2024 11:37:26 AM |
ERCOT Emergency Base Points are Disabled |
Operational Information |
Cancelled |
| Apr 2, 2024 11:22:50 AM |
ERCOT has declared a Watch due to the failure of the SCED process, starting at 11:22 |
Watch |
Active |
| Apr 2, 2024 11:12:34 AM |
ERCOT Emergency Base Points are Enabled |
Operational Information |
Active |
| Apr 2, 2024 8:47:34 AM |
The Daily RSASM for Tuesday, April 2, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 2, 2024 1:54:59 AM |
No sudden loss of generation greater than 450 MW occurred on April 1, 2024. |
Operational Information |
Active |
| Apr 1, 2024 8:48:57 AM |
The Daily RSASM for Monday, April 1, 2024 will not be occurring due to zero participating QSEs. |
Operational Information |
Active |
| Apr 1, 2024 12:16:49 AM |
No sudden loss of generation greater than 450 MW occurred on March 31, 2024. |
Operational Information |
Active |
