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Operations Messages

This section contains important messages from the ERCOT Control Room. Refresh this screen to see current operation messages. 

Apr 2023 May 2023 Jun 2023 Jul 2023 Aug 2023 Sep 2023
Date & Time Notice Type Status
Aug 31, 2023 8:03:48 PM At 20:03, All Non-Spin has been recalled. Operational Information Active
Aug 31, 2023 8:03:09 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-31 20:03:08, END_TIME: 2023-08-31 20:03:08, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 31, 2023 7:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 114.0, BEGIN_TIME: 2023-08-31 20:00:00, END_TIME: 2023-08-31 23:59:59, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 31, 2023 6:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 114.1, BEGIN_TIME: 2023-08-31 19:00:00, END_TIME: 2023-08-31 23:59:59, DURATION: 4 Hrs 59 Mins.; Operational Information
Aug 31, 2023 6:27:26 PM At 18:26 approximately 82.33 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 31, 2023 6:26:31 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 82.4, BEGIN_TIME: 2023-08-31 18:26:30, END_TIME: 2023-08-31 23:59:59, DURATION: 5 Hrs 33 Mins.; Operational Information
Aug 31, 2023 8:49:43 AM The Daily RSASM for Thursday, August 31, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 31, 2023 12:21:56 AM No sudden loss of generation greater than 450 MW occurred on August 30, 2023. Operational Information Active
Aug 30, 2023 10:35:23 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to an actual or anticipated emergency in its Control Area. DC Tie Curtailment Notice Cancelled
Aug 30, 2023 9:26:14 PM The DC_L (Laredo VFT) DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to an actual or anticipated emergency in its Control Area. DC Tie Curtailment Notice Active
Aug 30, 2023 9:03:44 PM ERCOT has cancelled the following notice: ERCOT is issuing a Watch for a projected reserve capacity shortage with no market solution available for Wednesday, August 30, 2023, HE 19:00 – 21:00, which causes a risk for an EEA event Watch Cancelled
Aug 30, 2023 9:03:35 PM ERCOT has cancelled the following notice: ERCOT has issued an appeal through the public news media for energy conservation for August 30, 2023 from 6:00 p.m. - 9:00 p.m. CPT (HE 19-21). Operational Information Cancelled
Aug 30, 2023 8:50:51 PM At 20:50, All Non-Spin has been recalled. Operational Information Active
Aug 30, 2023 8:50:10 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-30 20:50:09, END_TIME: 2023-08-30 20:50:09, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 30, 2023 8:40:55 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 30, 2023 8:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 240.2, BEGIN_TIME: 2023-08-30 21:00:00, END_TIME: 2023-08-30 23:59:59, DURATION: 2 Hrs 59 Mins.; Operational Information
Aug 30, 2023 8:24:07 PM ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
Aug 30, 2023 7:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 115.3, BEGIN_TIME: 2023-08-30 20:00:00, END_TIME: 2023-08-30 23:59:59, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 30, 2023 7:25:39 PM ERCOT Responsive Reserve Has Been Deployed Operational Information Active
Aug 30, 2023 6:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 115.4, BEGIN_TIME: 2023-08-30 19:00:00, END_TIME: 2023-08-30 23:59:59, DURATION: 4 Hrs 59 Mins.; Operational Information
Aug 30, 2023 6:27:23 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 30, 2023 6:02:50 PM At 18:02 approximately 83.68 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 30, 2023 6:02:11 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 83.7, BEGIN_TIME: 2023-08-30 18:02:10, END_TIME: 2023-08-30 23:59:59, DURATION: 5 Hrs 57 Mins.; Operational Information
Aug 30, 2023 11:30:01 AM ERCOT has issued an appeal through the public news media for energy conservation for August 30, 2023 from 6:00 p.m. - 9:00 p.m. CPT (HE 19-21). Operational Information Active
Aug 30, 2023 11:25:18 AM ERCOT has cancelled the following notice: At 10:51, ERCOT is issuing a Watch due to HRUC not completing for HE 12 due to HRUC failure. Watch Cancelled
Aug 30, 2023 10:52:50 AM At 10:51, ERCOT is issuing a Watch due to HRUC not completing for HE 12 due to HRUC failure. Watch Active
Aug 30, 2023 9:30:01 AM ERCOT is issuing a Watch for a projected reserve capacity shortage with no market solution available for Wednesday, August 30, 2023, HE 19:00 – 21:00, which causes a risk for an EEA event Watch Active
Aug 30, 2023 8:47:59 AM The Daily RSASM for Wednesday, August 30, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 30, 2023 12:50:21 AM No sudden loss of generation greater than 450 MW occurred on August 29, 2023. Operational Information Active
Aug 29, 2023 9:00:29 PM ERCOT has cancelled the following notice: ERCOT is issuing a Watch for a projected reserve capacity shortage with no market solution available for Tuesday, August 29, 2023, HE 19:00 – 21:00, which causes a risk for an EEA event. Watch Cancelled
Aug 29, 2023 9:00:17 PM ERCOT has cancelled the following notice: ERCOT has issued an appeal through the public news media for energy conservation for August 29, 2023 from 5:00 p.m. - 9:00 p.m. CPT (HE 18-21). Operational Information Cancelled
Aug 29, 2023 8:38:07 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from 08/29/2023 18:00 through 08/29/2023 21:00 due to a forced outage. Operational Information Cancelled
Aug 29, 2023 8:07:50 PM At 20:07, All Non-Spin has been recalled. Operational Information Active
Aug 29, 2023 8:07:20 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-29 20:07:19, END_TIME: 2023-08-29 20:07:19, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 29, 2023 8:01:35 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 29, 2023 7:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 115.4, BEGIN_TIME: 2023-08-29 20:00:00, END_TIME: 2023-08-29 23:59:59, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 29, 2023 7:26:27 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 29, 2023 6:58:47 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [18:40] for operating day [08/29/23] for HE [21] for [15] MW [RRS] Operational Information Cancelled
Aug 29, 2023 6:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 115.5, BEGIN_TIME: 2023-08-29 19:00:00, END_TIME: 2023-08-29 23:59:59, DURATION: 4 Hrs 59 Mins.; Operational Information
Aug 29, 2023 6:25:57 PM At 18:24 approximately 116.86 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 29, 2023 6:24:52 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 116.9, BEGIN_TIME: 2023-08-29 18:24:51, END_TIME: 2023-08-29 23:59:59, DURATION: 5 Hrs 35 Mins.; Operational Information
Aug 29, 2023 6:12:56 PM The DC_L (Laredo VFT) DC Tie will be unavailable from 08/29/2023 18:00 through 08/29/2023 21:00 due to a forced outage. Operational Information Active
Aug 29, 2023 6:11:26 PM ERCOT will execute a SASM at [18:40] for operating day [08/29/23] for HE [21] for [15] MW [RRS] Operational Information Active
Aug 29, 2023 11:30:00 AM ERCOT has issued an appeal through the public news media for energy conservation for August 29, 2023 from 5:00 p.m. - 9:00 p.m. CPT (HE 18-21). Operational Information Active
Aug 29, 2023 10:00:01 AM ERCOT is issuing a Watch for a projected reserve capacity shortage with no market solution available for Tuesday, August 29, 2023, HE 19:00 – 21:00, which causes a risk for an EEA event. Watch Active
Aug 29, 2023 8:49:48 AM The Daily RSASM for Tuesday, August 29, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 29, 2023 12:14:45 AM No sudden loss of generation greater than 450 MW occurred on August 28, 2023. Operational Information Active
Aug 28, 2023 8:48:23 AM The Daily RSASM for Monday, August 28, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 28, 2023 12:03:46 AM No sudden loss of generation greater than 450 MW occurred on August 27, 2023. Operational Information Active
Aug 27, 2023 9:00:54 PM ERCOT has cancelled the following notice: ERCOT has issued an appeal through the public news media for energy conservation for August 27, 2023 from 4:00 p.m. - 9:00 p.m. CPT (HE 17-21). Operational Information Cancelled
Aug 27, 2023 9:00:42 PM ERCOT has cancelled the following notice: ERCOT is issuing a Watch for a projected reserve capacity shortage with no market solution available for Sunday, August 27, 2023, HE 19:00 – 21:00, which causes a risk for an EEA event. Watch Cancelled
Aug 27, 2023 9:00:12 PM ERCOT has cancelled the following notice: At 13:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Wednesday, August 23, 2023 until Sunday, August 27, 2023. OCN Cancelled
Aug 27, 2023 10:00:00 AM ERCOT has issued an appeal through the public news media for energy conservation for August 27, 2023 from 4:00 p.m. - 9:00 p.m. CPT (HE 17-21). Operational Information Active
Aug 27, 2023 8:59:59 AM ERCOT is issuing a Watch for a projected reserve capacity shortage with no market solution available for Sunday, August 27, 2023, HE 19:00 – 21:00, which causes a risk for an EEA event. Watch Active
Aug 27, 2023 8:46:51 AM The Daily RSASM for Sunday, August 27, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 27, 2023 6:11:24 AM ERCOT has cancelled the following notice: ERCOT has cancelled the following notice: ERCOT will execute a SASM at 05:45 for operating day 8/27/23 for HE 08-12 for 8 MW’s each hour of ECRS. Operational Information Cancelled
Aug 27, 2023 6:11:17 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 05:45 for operating day 8/27/23 for HE 08-12 for 8 MW’s each hour of ECRS. Operational Information Active
Aug 27, 2023 6:10:45 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 05:45 for operating day 8/27/23 for HE 08-12 for 8 MW’s each hour of ECRS. Operational Information Cancelled
Aug 27, 2023 5:15:55 AM ERCOT will execute a SASM at 05:45 for operating day 8/27/23 for HE 08-12 for 8 MW’s each hour of ECRS. Operational Information Active
Aug 27, 2023 12:16:54 AM No sudden loss of generation greater than 450 MW occurred on August 26, 2023. Operational Information Active
Aug 26, 2023 9:00:45 PM ERCOT has cancelled the following notice: ERCOT has issued an appeal through the public news media for energy conservation for August 26, 2023 from 3:00 p.m. – 9:00 p.m. CPT (HE 16-21). Operational Information Cancelled
Aug 26, 2023 9:00:29 PM ERCOT has cancelled the following notice: ERCOT is issuing a Watch for a projected reserve capacity shortage with no market solution available for Saturday, August 26, 2023, HE 18:00 – 21:00, which causes a risk for an EEA event. Watch Cancelled
Aug 26, 2023 8:46:03 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 26, 2023 7:38:07 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 26, 2023 10:45:00 AM ERCOT has issued an appeal through the public news media for energy conservation for August 26, 2023 from 3:00 p.m. – 9:00 p.m. CPT (HE 16-21). Operational Information Active
Aug 26, 2023 9:30:07 AM ERCOT is issuing a Watch for a projected reserve capacity shortage with no market solution available for Saturday, August 26, 2023, HE 18:00 – 21:00, which causes a risk for an EEA event. Watch Active
Aug 26, 2023 8:49:00 AM The Daily RSASM for Saturday, August 26, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 26, 2023 12:07:25 AM No sudden loss of generation greater than 450 MW occurred on August 25, 2023. Operational Information Active
Aug 25, 2023 9:03:29 PM At 21:02, All Non-Spin has been recalled. Operational Information Active
Aug 25, 2023 9:02:37 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-25 21:02:37, END_TIME: 2023-08-25 21:02:37, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 25, 2023 9:00:45 PM ERCOT has cancelled the following notice: ERCOT has issued an appeal through the public news media for voluntary energy conservation for August 25, 2023 from 3:00 p.m. – 9:00 p.m. CPT (HE 16-21). Operational Information Cancelled
Aug 25, 2023 9:00:36 PM ERCOT has cancelled the following notice: ERCOT is issuing a Watch for a projected reserve capacity shortage with no market solution available for Friday, August 25, 2023, HE 20:00 – 21:00, which causes a risk for an EEA event. Watch Cancelled
Aug 25, 2023 8:44:11 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 25, 2023 8:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 158.2, BEGIN_TIME: 2023-08-25 21:00:00, END_TIME: 2023-08-25 23:59:00, DURATION: 2 Hrs 59 Mins.; Operational Information
Aug 25, 2023 8:11:11 PM ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
Aug 25, 2023 7:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 115.7, BEGIN_TIME: 2023-08-25 20:00:00, END_TIME: 2023-08-25 23:59:00, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 25, 2023 7:21:35 PM ERCOT Responsive Reserve Has Been Deployed Operational Information Active
Aug 25, 2023 6:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 115.7, BEGIN_TIME: 2023-08-25 19:00:00, END_TIME: 2023-08-25 23:59:00, DURATION: 4 Hrs 59 Mins.; Operational Information
Aug 25, 2023 6:21:07 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 25, 2023 6:00:23 PM At 17:57 approximately 116.5 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 25, 2023 5:57:55 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 116.5, BEGIN_TIME: 2023-08-25 17:57:55, END_TIME: 2023-08-25 23:59:00, DURATION: 6 Hrs 1 Mins.; Operational Information
Aug 25, 2023 5:37:21 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 17:05 for operating day 08/25/23 for 10 MW RRS HE 20. Operational Information Cancelled
Aug 25, 2023 4:40:07 PM ERCOT will execute a SASM at 17:05 for operating day 08/25/23 for 10 MW RRS HE 20. Operational Information Active
Aug 25, 2023 11:15:00 AM ERCOT has issued an appeal through the public news media for voluntary energy conservation for August 25, 2023 from 3:00 p.m. – 9:00 p.m. CPT (HE 16-21). Operational Information Active
Aug 25, 2023 10:00:00 AM ERCOT is issuing a Watch for a projected reserve capacity shortage with no market solution available for Friday, August 25, 2023, HE 20:00 – 21:00, which causes a risk for an EEA event. Watch Active
Aug 25, 2023 8:47:29 AM The Daily RSASM for Friday, August 25, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 25, 2023 12:00:02 AM On 08/24/2023, a sudden loss of generation occurred at 05:04 totaling 491 MW. Frequency declined to 59.927 Hz, ERCOT load was 53,487 MW. Operational Information Active
Aug 24, 2023 10:00:01 PM ERCOT has cancelled the following notice: ERCOT has issued an appeal through the public news media for voluntary energy conservation for August 24, 2023 from 3:00 p.m. – 10 p.m. CPT (HE 16-22). Operational Information Cancelled
Aug 24, 2023 9:08:17 PM ERCOT has cancelled the following notice: At 16:09 approximately 74.5 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Cancelled
Aug 24, 2023 9:06:03 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-24 21:06:03, END_TIME: 2023-08-24 21:06:03, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 24, 2023 9:00:03 PM ERCOT has cancelled the following notice: ERCOT issued a Watch for a projected reserve capacity shortage with no market solution available for Thursday, August 24, 2023 HE 19:00 – 21:00, which causes a risk for an EEA event. Watch Cancelled
Aug 24, 2023 8:41:07 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 24, 2023 8:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 231.2, BEGIN_TIME: 2023-08-24 21:00:00, END_TIME: 2023-08-24 23:59:00, DURATION: 2 Hrs 59 Mins.; Operational Information
Aug 24, 2023 7:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 115.7, BEGIN_TIME: 2023-08-24 20:00:00, END_TIME: 2023-08-24 23:59:00, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 24, 2023 6:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 115.7, BEGIN_TIME: 2023-08-24 19:00:00, END_TIME: 2023-08-24 23:59:00, DURATION: 4 Hrs 59 Mins.; Operational Information
Aug 24, 2023 5:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 107.4, BEGIN_TIME: 2023-08-24 18:00:00, END_TIME: 2023-08-24 23:59:00, DURATION: 5 Hrs 59 Mins.; Operational Information
Aug 24, 2023 4:53:30 PM At 16:09 approximately 74.5 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 24, 2023 4:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 107.4, BEGIN_TIME: 2023-08-24 17:00:00, END_TIME: 2023-08-24 23:59:00, DURATION: 6 Hrs 59 Mins.; Operational Information
Aug 24, 2023 4:09:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 74.5, BEGIN_TIME: 2023-08-24 16:09:01, END_TIME: 2023-08-24 23:59:00, DURATION: 7 Hrs 49 Mins.; Operational Information
Aug 24, 2023 4:09:00 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 15:40 for operating day 08/24/23 for 10 MW RRS HE 20. Operational Information Cancelled
Aug 24, 2023 3:55:19 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 24, 2023 3:07:06 PM ERCOT will execute a SASM at 15:40 for operating day 08/24/23 for 10 MW RRS HE 20. Operational Information Active
Aug 24, 2023 11:15:01 AM ERCOT has issued an appeal through the public news media for voluntary energy conservation for August 24, 2023 from 3:00 p.m. – 10 p.m. CPT (HE 16-22). Operational Information Active
Aug 24, 2023 8:48:19 AM The Daily RSASM for Thursday, August 24, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 23, 2023 10:00:01 PM ERCOT issued a Watch for a projected reserve capacity shortage with no market solution available for Thursday, August 24, 2023 HE 19:00 – 21:00, which causes a risk for an EEA event. Watch Active
Aug 23, 2023 7:41:57 PM ERCOT has cancelled the following notice: The ERCOT HHGT RAS has been removed from RTCA. Operational Information Cancelled
Aug 23, 2023 3:17:53 PM The ERCOT HHGT RAS has been removed from RTCA. Operational Information Active
Aug 23, 2023 8:51:52 AM The Daily RSASM for Wednesday, August 23, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 23, 2023 7:00:12 AM ERCOT has cancelled the following notice: At 07:00, ERCOT is issuing an OCN for Tropical Storm Harold due to a probability of making landfall in the ERCOT Region, from August 22, 2023, thru August 23, 2023. OCN Cancelled
Aug 23, 2023 2:27:47 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 01:50 for operating day 08/23/23 for 46.3 MW NSPIN HE 4-5, 46.4 MW NSPIN HE 6-7, 46.6 MW NSPIN HE 8, 46.1 MW NSPIN HE 9, 45.6 MW NSPIN HE 10, and 47.6 NSPIN HE 11. Operational Information Cancelled
Aug 23, 2023 1:26:47 AM ERCOT will execute a SASM at 01:50 for operating day 08/23/23 for 46.3 MW NSPIN HE 4-5, 46.4 MW NSPIN HE 6-7, 46.6 MW NSPIN HE 8, 46.1 MW NSPIN HE 9, 45.6 MW NSPIN HE 10, and 47.6 NSPIN HE 11. Operational Information Active
Aug 23, 2023 12:10:13 AM On 08/22/2023, a sudden loss of generation occurred at 01:27 totaling 603 MW. Frequency declined to 59.901 Hz, ERCOT load was 60,731 MW. Operational Information Active
Aug 22, 2023 9:00:08 PM ERCOT has cancelled the following notice: At 10:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Saturday, August 19, 2023 until Tuesday, August 22, 2023. OCN Cancelled
Aug 22, 2023 8:51:41 AM The Daily RSASM for Tuesday, August 22, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 22, 2023 6:59:28 AM At 07:00, ERCOT is issuing an OCN for Tropical Storm Harold due to a probability of making landfall in the ERCOT Region, from August 22, 2023, thru August 23, 2023. OCN Active
Aug 22, 2023 1:35:19 AM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 22, 2023 1:27:35 AM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 22, 2023 12:02:03 AM No sudden loss of generation greater than 450 MW occurred on August 21, 2023. Operational Information Active
Aug 21, 2023 1:00:56 PM At 13:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Wednesday, August 23, 2023 until Sunday, August 27, 2023. OCN Active
Aug 21, 2023 9:09:43 AM The Daily RSASM for Monday, August 21, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 21, 2023 12:01:36 AM No sudden loss of generation greater than 450 MW occurred on August 20, 2023. Operational Information Active
Aug 20, 2023 10:00:03 PM ERCOT has cancelled the following notice: At 15:15 ERCOT has issued an appeal through the public news media for voluntary energy conservation for August 20, 2023 from 7-10PM CPT (HE20-22). Operational Information Cancelled
Aug 20, 2023 9:19:05 PM At 21:17, All Non-Spin has been recalled. Operational Information Active
Aug 20, 2023 9:17:49 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-20 21:17:48, END_TIME: 2023-08-20 21:17:48, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 20, 2023 9:11:23 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 20, 2023 8:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 267.3, BEGIN_TIME: 2023-08-20 21:00:00, END_TIME: 2023-08-20 23:59:00, DURATION: 2 Hrs 59 Mins.; Operational Information
Aug 20, 2023 7:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 213.0, BEGIN_TIME: 2023-08-20 20:00:00, END_TIME: 2023-08-20 23:59:00, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 20, 2023 7:19:55 PM At 19:14 approximately 108.38 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 20, 2023 7:14:47 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 108.4, BEGIN_TIME: 2023-08-20 19:14:46, END_TIME: 2023-08-20 23:59:00, DURATION: 4 Hrs 44 Mins.; Operational Information
Aug 20, 2023 7:11:39 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 20, 2023 3:15:15 PM At 15:15 ERCOT has issued an appeal through the public news media for voluntary energy conservation for August 20, 2023 from 7-10PM CPT (HE20-22). Operational Information Active
Aug 20, 2023 1:43:17 PM DAM is complete, DRUC will begin at 1445. Operational Information Active
Aug 20, 2023 1:17:58 PM ERCOT has postponed the deadline for the posting of the DAM solution for Operating Day 08/21/2023 due to long solution run time. Advisory Active
Aug 20, 2023 8:46:54 AM The Daily RSASM for Sunday, August 20, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 20, 2023 12:10:27 AM No sudden loss of generation greater than 450 MW occurred on August 19, 2023. Operational Information Active
Aug 19, 2023 8:56:06 AM The Daily RSASM for Saturday, August 19, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 19, 2023 12:04:46 AM No sudden loss of generation greater than 450 MW occurred on August 18, 2023. Operational Information Active
Aug 18, 2023 9:00:00 PM ERCOT has cancelled the following notice: At 10:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Saturday, August 12, 2023 until Friday, August 18, 2023. OCN Cancelled
Aug 18, 2023 10:04:51 AM At 10:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Saturday, August 19, 2023 until Tuesday, August 22, 2023. OCN Active
Aug 18, 2023 8:45:25 AM The Daily RSASM for Friday, August 18, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 18, 2023 12:34:39 AM No sudden loss of generation greater than 450 MW occurred on August 17, 2023. Operational Information Active
Aug 17, 2023 9:01:53 PM ERCOT has cancelled the following notice: ERCOT has issued an appeal through the public news media for voluntary energy conservation for August, 17, 2023 (HE 16-20). Operational Information Cancelled
Aug 17, 2023 8:59:54 PM At 20:58, All Non-Spin has been recalled. Operational Information Active
Aug 17, 2023 8:58:52 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-17 20:58:52, END_TIME: 2023-08-17 20:58:52, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 17, 2023 8:55:05 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 373.4, BEGIN_TIME: 2023-08-17 20:55:04, END_TIME: 2023-08-17 23:59:59, DURATION: 3 Hrs 4 Mins.; Operational Information
Aug 17, 2023 8:50:45 PM ERCOT has cancelled the following notice: ERCOT is issuing a Transmission Watch due to the post-contingency overload of DELMSAN5 . Ercot will take manual action to mitigate the contingency. Advisory Cancelled
Aug 17, 2023 8:47:54 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 956.4, BEGIN_TIME: 2023-08-17 20:47:54, END_TIME: 2023-08-17 23:59:59, DURATION: 3 Hrs 12 Mins.; Operational Information
Aug 17, 2023 8:46:11 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 17, 2023 8:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1353.4, BEGIN_TIME: 2023-08-17 21:00:00, END_TIME: 2023-08-17 23:59:59, DURATION: 2 Hrs 59 Mins.; Operational Information
Aug 17, 2023 8:14:04 PM ERCOT has cancelled the following notice: Reserves are below 3,000 MW. Emergency Response Service 30/10/Weather Sensitive is being deployed. ERCOT is requesting Transmission Operators to implement distribution voltage reduction measures if available. Advisory Cancelled
Aug 17, 2023 8:12:34 PM ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW. Advisory Cancelled
Aug 17, 2023 8:08:55 PM CM-ASM-NOTF ERCOT Emergency Response Service-30 is Being Recalled Operational Information Cancelled
Aug 17, 2023 8:08:55 PM CM-ASM-NOTF ERCOT Emergency Response Service-10 is Being Recalled Operational Information Cancelled
Aug 17, 2023 8:06:35 PM ERCOT Responsive Reserve Has Been Recalled Operational Information Cancelled
Aug 17, 2023 7:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1795.1, BEGIN_TIME: 2023-08-17 20:00:00, END_TIME: 2023-08-17 23:59:59, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 17, 2023 7:22:58 PM Reserves are below 3,000 MW. Emergency Response Service 30/10/Weather Sensitive is being deployed. ERCOT is requesting Transmission Operators to implement distribution voltage reduction measures if available. Advisory Active
Aug 17, 2023 7:22:01 PM ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW. Advisory Active
Aug 17, 2023 7:17:27 PM CM-ASM-NOTF ERCOT Emergency Response Service-10 is Being Deployed Operational Information Active
Aug 17, 2023 7:17:27 PM CM-ASM-NOTF ERCOT Emergency Response Service-30 is Being Deployed Operational Information Active
Aug 17, 2023 7:09:15 PM ERCOT Responsive Reserve Has Been Deployed Operational Information Active
Aug 17, 2023 6:55:56 PM ERCOT is issuing a Transmission Watch due to the post-contingency overload of DELMSAN5 . Ercot will take manual action to mitigate the contingency. Advisory Active
Aug 17, 2023 6:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1809.1, BEGIN_TIME: 2023-08-17 19:00:00, END_TIME: 2023-08-17 23:59:59, DURATION: 4 Hrs 59 Mins.; Operational Information
Aug 17, 2023 5:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1873.1, BEGIN_TIME: 2023-08-17 18:00:00, END_TIME: 2023-08-17 23:59:59, DURATION: 5 Hrs 59 Mins.; Operational Information
Aug 17, 2023 4:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 2024.1, BEGIN_TIME: 2023-08-17 17:00:00, END_TIME: 2023-08-17 23:59:59, DURATION: 6 Hrs 59 Mins.; Operational Information
Aug 17, 2023 3:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 2024.0, BEGIN_TIME: 2023-08-17 16:00:00, END_TIME: 2023-08-17 23:59:59, DURATION: 7 Hrs 59 Mins.; Operational Information
Aug 17, 2023 2:44:31 PM At 14:41 approximately 135 MW of Non-Spin has been deployed, anticipated duration is through 2359. Operational Information Active
Aug 17, 2023 2:41:54 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 2024.0, BEGIN_TIME: 2023-08-17 14:41:54, END_TIME: 2023-08-17 23:59:59, DURATION: 9 Hrs 18 Mins.; Operational Information
Aug 17, 2023 2:41:27 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 17, 2023 10:30:31 AM ERCOT has issued an appeal through the public news media for voluntary energy conservation for August, 17, 2023 (HE 16-20). Operational Information Active
Aug 17, 2023 8:46:25 AM The Daily RSASM for Thursday, August 17, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 17, 2023 12:03:05 AM No sudden loss of generation greater than 450 MW occurred on August 16, 2023. Operational Information Active
Aug 16, 2023 8:46:57 AM The Daily RSASM for Wednesday, August 16, 2023 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 16, 2023 12:11:08 AM No sudden loss of generation greater than 450 MW occurred on August 15, 2023. Operational Information Active
Aug 15, 2023 9:41:57 PM At 20:43, All Non-Spin has been recalled. Operational Information Active
Aug 15, 2023 8:43:20 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-15 20:43:19, END_TIME: 2023-08-15 20:43:19, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 15, 2023 8:36:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1031.9, BEGIN_TIME: 2023-08-15 20:36:01, END_TIME: 2023-08-15 23:59:00, DURATION: 3 Hrs 22 Mins.; Operational Information
Aug 15, 2023 8:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1523.7, BEGIN_TIME: 2023-08-15 21:00:00, END_TIME: 2023-08-15 23:59:00, DURATION: 2 Hrs 59 Mins.; Operational Information
Aug 15, 2023 8:31:25 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 15, 2023 7:41:27 PM At 19:37 approximately 114.5 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 15, 2023 7:37:42 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 1926.5, BEGIN_TIME: 2023-08-15 19:37:42, END_TIME: 2023-08-15 23:59:00, DURATION: 4 Hrs 21 Mins.; Operational Information
Aug 15, 2023 7:25:37 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 15, 2023 8:52:45 AM The Daily RSASM for Tuesday, August 15, 2023 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 15, 2023 12:19:26 AM No sudden loss of generation greater than 450 MW occurred on August 14, 2023. Operational Information Active
Aug 14, 2023 11:07:28 PM ERCOT has cancelled the following notice: ERCOT is taking manual actions to pre-posture for North Edinburg-Pomelo 345kV planned outage. Operational Information Cancelled
Aug 14, 2023 10:18:47 PM ERCOT is taking manual actions to pre-posture for North Edinburg-Pomelo 345kV planned outage. Operational Information Active
Aug 14, 2023 8:47:55 AM The daily RSASM will not be occurring due to zero participating QSEs Operational Information Active
Aug 14, 2023 12:00:38 AM No sudden loss of generation greater than 450 MW occurred on August 13, 2023. Operational Information Active
Aug 13, 2023 8:07:32 PM At 20:06, All Non-Spin has been recalled. Operational Information Active
Aug 13, 2023 8:06:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-13 20:06:02, END_TIME: 2023-08-13 20:06:02, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 13, 2023 7:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 199.1, BEGIN_TIME: 2023-08-13 20:00:00, END_TIME: 2023-08-13 23:59:00, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 13, 2023 7:02:38 PM At 19:00 approximately 165.48 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 13, 2023 7:00:45 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 165.5, BEGIN_TIME: 2023-08-13 19:00:45, END_TIME: 2023-08-13 23:59:00, DURATION: 4 Hrs 58 Mins.; Operational Information
Aug 13, 2023 8:48:32 AM The Daily RSASM for Sunday, August 13, 2023 will not be occurring due to zero participating QSE. Operational Information Active
Aug 13, 2023 12:00:41 AM No sudden loss of generation greater than 450 MW occurred on August 12, 2023. Operational Information Active
Aug 12, 2023 8:17:57 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 12, 2023 8:15:44 PM At 20:13, All Non-Spin has been recalled. Operational Information Active
Aug 12, 2023 8:13:34 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-12 20:13:34, END_TIME: 2023-08-12 20:13:34, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 12, 2023 7:37:21 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 12, 2023 7:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 245.1, BEGIN_TIME: 2023-08-12 20:00:00, END_TIME: 2023-08-12 23:59:00, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 12, 2023 6:59:54 PM At 18:57 approximately 244 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 12, 2023 6:57:16 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 244.0, BEGIN_TIME: 2023-08-12 18:57:16, END_TIME: 2023-08-12 23:59:00, DURATION: 5 Hrs 1 Mins.; Operational Information
Aug 12, 2023 8:48:02 AM The Daily RSASM for Saturday, August 12, 2023 will not be occurring due to zero participating QSE. Operational Information Active
Aug 12, 2023 12:00:49 AM No sudden loss of generation greater than 450 MW occurred on August 11, 2023. Operational Information Active
Aug 11, 2023 9:00:30 PM ERCOT has cancelled the following notice: At 10:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Tuesday, August 08, 2023 until Friday, August 11, 2023. OCN Cancelled
Aug 11, 2023 8:10:18 PM At 20:09, All Non-Spin has been recalled. Operational Information Active
Aug 11, 2023 8:09:13 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-11 20:09:13, END_TIME: 2023-08-11 20:09:13, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 11, 2023 8:05:57 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 11, 2023 8:01:46 PM ERCOT has cancelled the following notice: ERCOT is issuing a Transmission Watch due to the post-contingency overload of DELMSAN5 . ERCOT will take manual action to mitigate the contingency. Watch Cancelled
Aug 11, 2023 7:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 112.1, BEGIN_TIME: 2023-08-11 20:00:00, END_TIME: 2023-08-11 23:59:00, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 11, 2023 6:41:32 PM At 18:34 approximately 110 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 11, 2023 6:38:11 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 110.5, BEGIN_TIME: 2023-08-11 18:38:11, END_TIME: 2023-08-11 23:59:00, DURATION: 5 Hrs 20 Mins.; Operational Information
Aug 11, 2023 6:34:44 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 110.5, BEGIN_TIME: 2023-08-11 18:34:43, END_TIME: 2023-08-11 19:00:00, DURATION: 0 Hrs 25 Mins.; Operational Information
Aug 11, 2023 6:31:01 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 11, 2023 6:01:05 PM ERCOT is issuing a Transmission Watch due to the post-contingency overload of DELMSAN5 . ERCOT will take manual action to mitigate the contingency. Watch Active
Aug 11, 2023 12:08:46 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) 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
Aug 11, 2023 12:01:47 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from 08/10/2023 17:36 through 08/11/2023 17:00 due to a forced outage. Operational Information Cancelled
Aug 11, 2023 10:00:14 AM At 10:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Saturday, August 12, 2023 until Friday, August 18, 2023. OCN Active
Aug 11, 2023 8:47:49 AM The Daily RSASM for Friday, August 11, 2023 will not be occurring due to zero participating QSE. Operational Information Active
Aug 11, 2023 3:54:33 AM ERCOT will be working from the Primary Control Center until further notice, use the OPX numbers for Taylor. Operational Information Active
Aug 11, 2023 12:03:46 AM No sudden loss of generation greater than 450 MW occurred on August 10, 2023. Operational Information Active
Aug 10, 2023 9:48:13 PM The DC_L (Laredo VFT) DC Tie will be unavailable from 08/10/2023 17:36 through 08/11/2023 17:00 due to a forced outage. Operational Information Active
Aug 10, 2023 9:46:54 PM ERCOT has cancelled the following notice: The DC_L (Laredo VFT) DC Tie will be unavailable from 08/10/2023 17:36 through 08/10/2023 23:59 due to a forced outage. Operational Information Cancelled
Aug 10, 2023 8:59:17 PM At 20:23, All Non-Spin has been recalled. Operational Information Active
Aug 10, 2023 8:23:28 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-10 20:23:28, END_TIME: 2023-08-10 20:23:28, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 10, 2023 8:21:41 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 10, 2023 8:18:58 PM ERCOT has cancelled the following notice: ERCOT is issuing a Transmission Watch due to the post-contingency overload of DELMSAN5 . Ercot will take manual action to mitigate the contingency. Watch Cancelled
Aug 10, 2023 7:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 75.4, BEGIN_TIME: 2023-08-10 20:00:00, END_TIME: 2023-08-10 23:59:00, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 10, 2023 6:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 75.1, BEGIN_TIME: 2023-08-10 19:00:00, END_TIME: 2023-08-10 23:59:00, DURATION: 4 Hrs 59 Mins.; Operational Information
Aug 10, 2023 6:08:18 PM The DC_L (Laredo VFT) DC Tie will be unavailable from 08/10/2023 17:36 through 08/10/2023 23:59 due to a forced outage. Operational Information Active
Aug 10, 2023 6:07:23 PM The DC_L (Laredo VFT) 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
Aug 10, 2023 5:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 88.8, BEGIN_TIME: 2023-08-10 18:00:00, END_TIME: 2023-08-10 23:59:00, DURATION: 5 Hrs 59 Mins.; Operational Information
Aug 10, 2023 5:20:01 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 10, 2023 5:19:05 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 10, 2023 4:36:21 PM ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Active
Aug 10, 2023 4:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 116.9, BEGIN_TIME: 2023-08-10 17:00:00, END_TIME: 2023-08-10 23:59:00, DURATION: 6 Hrs 59 Mins.; Operational Information
Aug 10, 2023 3:43:05 PM ERCOT is issuing a Transmission Watch due to the post-contingency overload of DELMSAN5 . Ercot will take manual action to mitigate the contingency. Watch Active
Aug 10, 2023 3:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 116.9, BEGIN_TIME: 2023-08-10 16:00:00, END_TIME: 2023-08-10 23:59:00, DURATION: 7 Hrs 59 Mins.; Operational Information
Aug 10, 2023 3:30:43 PM At 15:29 approximately 108 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 10, 2023 3:29:55 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 107.9, BEGIN_TIME: 2023-08-10 15:29:55, END_TIME: 2023-08-10 23:59:00, DURATION: 8 Hrs 29 Mins.; Operational Information
Aug 10, 2023 3:29:17 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 10, 2023 8:50:18 AM The Daily RSASM for Thursday, August 10, 2023 will not be occurring due to zero participating QSE. Operational Information Active
Aug 10, 2023 12:03:28 AM No sudden loss of generation greater than 450 MW occurred on August 09, 2023. Operational Information Active
Aug 9, 2023 10:17:22 PM ERCOT has cancelled the following notice: At 21:50, ERCOT is issuing a Watch due to HRUC not completing for HE23 due to failure. Watch Cancelled
Aug 9, 2023 9:58:41 PM At 21:50, ERCOT is issuing a Watch due to HRUC not completing for HE23 due to failure. Watch Active
Aug 9, 2023 3:42:45 PM ERCOT Emergency Base Points are Disabled Operational Information Cancelled
Aug 9, 2023 3:42:25 PM ERCOT Emergency Base Points are Enabled Operational Information Active
Aug 9, 2023 10:38:26 AM At 3:25 PM on 08/09/2023, 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 Active
Aug 9, 2023 10:22:47 AM Market price correction for SCED. ERCOT has identified a need to perform a price correction for Real-Time Settlement Interval 06:00 on Operating Day 8/08/2023. This was due to Emergency Basepoints being automatically activated when SCED interval 05:45 failed to run. ERCOT has determined that the impact to Real-Time Meter Prices (RTRMPRs) meets criteria for price correction in accordance with ERCOT Protocol Section 6.3(5). Corrections to RTRMPRs will be finished by 16:00 on 08/10/2023. Since ERCOT does not post price corrections for RTRMPRs, this price correction will be reflected on the settlement statements of the impacted QSEs. Alert Active
Aug 9, 2023 8:46:58 AM The Daily RSASM for Wednesday, August 9, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 9, 2023 12:22:06 AM On 08/08/2023, a sudden loss of generation occurred at 13:11 totaling 804 MW. Frequency declined to 59.908 Hz, ERCOT load was 77,716 MW. Another sudden loss of generation occurred at 19:26 totaling 688 MW. Frequency declined to 59.918 Hz, ERCOT load was 80,183 MW. Operational Information Active
Aug 8, 2023 8:27:44 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 8, 2023 7:31:32 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 8, 2023 8:46:23 AM The Daily RSASM for Tuesday, August 8, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 8, 2023 5:50:40 AM ERCOT Emergency Base Points are Disabled Operational Information Cancelled
Aug 8, 2023 5:47:28 AM ERCOT Emergency Base Points are Enabled Operational Information Active
Aug 8, 2023 1:00:03 AM ERCOT has cancelled the following notice: ERCOT is taking manual actions to pre-posture for North Edinburg-Pomelo 345kV planned outage. Operational Information Cancelled
Aug 8, 2023 12:13:17 AM No sudden loss of generation greater than 450 MW occurred on August 07, 2023. Operational Information Active
Aug 7, 2023 11:55:07 PM ERCOT is taking manual actions to pre-posture for North Edinburg-Pomelo 345kV planned outage. Operational Information Active
Aug 7, 2023 9:00:03 PM ERCOT has cancelled the following notice: At 10:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Thursday, August 03, 2023 until Monday, August 07, 2023. OCN Cancelled
Aug 7, 2023 8:24:44 PM At 20:19, All Non-Spin has been recalled. Operational Information Active
Aug 7, 2023 8:19:41 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-07 20:19:40, END_TIME: 2023-08-07 20:19:40, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 7, 2023 8:16:40 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 7, 2023 7:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 129.1, BEGIN_TIME: 2023-08-07 20:00:00, END_TIME: 2023-08-07 23:59:00, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 7, 2023 6:57:04 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 7, 2023 6:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 41.5, BEGIN_TIME: 2023-08-07 19:00:00, END_TIME: 2023-08-07 23:59:00, DURATION: 4 Hrs 59 Mins.; Operational Information
Aug 7, 2023 6:06:36 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 7, 2023 5:33:02 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 35.3, BEGIN_TIME: 2023-08-07 18:00:00, END_TIME: 2023-08-07 23:59:00, DURATION: 5 Hrs 59 Mins.; Operational Information
Aug 7, 2023 5:18:38 PM At 16:58 approximately 35 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 7, 2023 4:58:13 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 35.3, BEGIN_TIME: 2023-08-07 16:58:13, END_TIME: 2023-08-07 23:59:00, DURATION: 7 Hrs 0 Mins.; Operational Information
Aug 7, 2023 4:42:00 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 7, 2023 8:47:09 AM The Daily RSASM for Monday, August 7, 2023 will not be occurring due to Zero participating QSE's. Operational Information Active
Aug 7, 2023 12:11:13 AM No sudden loss of generation greater than 450 MW occurred on August 06, 2023. Operational Information Active
Aug 6, 2023 8:26:00 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 6, 2023 7:46:40 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 6, 2023 8:47:52 AM The Daily RSASM for Sunday, August 6, 2023 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 6, 2023 12:57:03 AM No sudden loss of generation greater than 450 MW occurred on August 05, 2023. Operational Information Active
Aug 5, 2023 8:47:59 AM The Daily RSASM for Saturday, August 5, 2023 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 5, 2023 7:39:13 AM ERCOT has cancelled the following notice: Advisory issued for a K-7 geomagnetic disturbance at 0059 on 08/05/2023. Advisory Cancelled
Aug 5, 2023 7:37:23 AM ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Warning of K-7 until 08/05/2023 at 07:00. Operational Information Cancelled
Aug 5, 2023 1:22:28 AM Advisory issued for a K-7 geomagnetic disturbance at 0059 on 08/05/2023. Advisory Active
Aug 5, 2023 12:44:03 AM The Space Weather Prediction Center has issued a GMD Warning of K-7 until 08/05/2023 at 07:00. Operational Information Active
Aug 5, 2023 12:14:18 AM On 08/04/2023, a sudden loss of generation occurred at 21:02 totaling 556 MW. Frequency declined to 59.911 Hz, ERCOT load was 75,730 MW. Operational Information Active
Aug 4, 2023 8:59:54 PM ERCOT has cancelled the following notice: During the Transmission Watch for DELMSAN5, Ercot had to take manual actions to alleviate post contingency overloads. Operational Information Cancelled
Aug 4, 2023 8:59:44 PM During the Transmission Watch for DELMSAN5, Ercot had to take manual actions to alleviate post contingency overloads. Operational Information Active
Aug 4, 2023 8:44:37 PM ERCOT has cancelled the following notice: ERCOT is issuing a Transmission Watch due to post-contingency overload constraint DELMSAN5 for South of San Antonio due to high post contingency overloads. Watch Cancelled
Aug 4, 2023 8:44:04 PM At 20:43, All Non-Spin has been recalled. Operational Information Active
Aug 4, 2023 8:43:27 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2023-08-04 20:43:27, END_TIME: 2023-08-04 20:43:27, DURATION: 0 Hrs 0 Mins.; Operational Information
Aug 4, 2023 8:41:12 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 4, 2023 8:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 168.7, BEGIN_TIME: 2023-08-04 21:00:00, END_TIME: 2023-08-04 23:59:00, DURATION: 2 Hrs 59 Mins.; Operational Information
Aug 4, 2023 7:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 123.1, BEGIN_TIME: 2023-08-04 20:00:00, END_TIME: 2023-08-04 23:59:00, DURATION: 3 Hrs 59 Mins.; Operational Information
Aug 4, 2023 6:52:04 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 4, 2023 6:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 103.3, BEGIN_TIME: 2023-08-04 19:00:00, END_TIME: 2023-08-04 23:59:00, DURATION: 4 Hrs 59 Mins.; Operational Information
Aug 4, 2023 6:13:52 PM ERCOT ECRS HAS BEEN RECALLED Operational Information Cancelled
Aug 4, 2023 5:36:13 PM ERCOT is issuing a Transmission Watch due to post-contingency overload constraint DELMSAN5 for South of San Antonio due to high post contingency overloads. Watch Active
Aug 4, 2023 5:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 75.1, BEGIN_TIME: 2023-08-04 18:00:00, END_TIME: 2023-08-04 23:59:00, DURATION: 5 Hrs 59 Mins.; Operational Information
Aug 4, 2023 5:04:50 PM At 17:04 approximately 42 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Aug 4, 2023 5:04:05 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 42.8, BEGIN_TIME: 2023-08-04 17:04:05, END_TIME: 2023-08-04 23:59:00, DURATION: 6 Hrs 54 Mins.; Operational Information
Aug 4, 2023 5:03:04 PM ERCOT ECRS HAS BEEN DEPLOYED Operational Information Active
Aug 4, 2023 10:00:06 AM At 10:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Tuesday, August 08, 2023 until Friday, August 11, 2023. OCN Active
Aug 4, 2023 8:48:20 AM The Daily RSASM for Friday, August 4, 2023 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 4, 2023 12:19:46 AM No sudden loss of generation greater than 450 MW occurred on August 03, 2023. Operational Information Active
Aug 3, 2023 8:48:17 AM The Daily RSASM for Thursday, August 3, 2023 will not be occurring due to zero participating QSEs. Operational Information Active
Aug 3, 2023 12:11:47 AM ERCOT has cancelled the following notice: At 10:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Saturday, July 29, 2023 until Wednesday, August 02, 2023. OCN Cancelled
Aug 3, 2023 12:02:03 AM On August 02, 2023, a sudden loss of generation occurred at 21:55 totaling 450 MW. Frequency declined to 59.951 Hz, ERCOT load was 73,538 MW. Operational Information Active
Aug 2, 2023 11:55:38 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
Aug 2, 2023 11:55:30 PM ERCOT has cancelled the following notice: The DC_R (Railroad) DC Tie will be unavailable from 08/02/2023 20:20 through 08/02/2023 23:59 due to a forced outage. Operational Information Cancelled
Aug 2, 2023 8:23:44 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
Aug 2, 2023 8:23:18 PM The DC_R (Railroad) DC Tie will be unavailable from 08/02/2023 20:20 through 08/02/2023 23:59 due to a forced outage. Operational Information Active
Aug 2, 2023 4:22:45 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [14:45] for operating day [08/02/2023] for 1.9 MW RRS for HE19 and 1.5 MW RRS for HE20. Operational Information Cancelled
Aug 2, 2023 2:09:11 PM ERCOT will execute a SASM at [14:45] for operating day [08/02/2023] for 1.9 MW RRS for HE19 and 1.5 MW RRS for HE20. Operational Information Active
Aug 2, 2023 11:49:09 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [10:50] for operating day 08/02/2023 for RRS for 1.1 MW HE14, 3.2 MW HE15, 4.3 MW HE16,19, 3.3 MW HE20, 2.9 HE21, 2.6 MW HE22, 1.3 MW HE23, 1.2 MW HE24. Operational Information Cancelled
Aug 2, 2023 10:12:07 AM ERCOT will execute a SASM at [10:50] for operating day 08/02/2023 for RRS for 1.1 MW HE14, 3.2 MW HE15, 4.3 MW HE16,19, 3.3 MW HE20, 2.9 HE21, 2.6 MW HE22, 1.3 MW HE23, 1.2 MW HE24. Operational Information Active
Aug 2, 2023 8:51:51 AM The Daily RSASM for Wednesday, August 2, 2023 will not be occurring due to zero participating QSE. Operational Information Active
Aug 2, 2023 12:15:12 AM No sudden loss of generation greater than 450 MW occurred on August 01, 2023. Operational Information Active
Aug 1, 2023 10:00:11 AM At 10:00, ERCOT is issuing an OCN for the extreme hot weather with forecasted temperatures to be above 103°F in the North Central and South Central weather zones, from Thursday, August 03, 2023 until Monday, August 07, 2023. OCN Active
Aug 1, 2023 8:51:17 AM The Daily RSASM for Tuesday, August 1, 2023 will not be occurring due to zero participating QSE. Operational Information Active
Aug 1, 2023 8:50:59 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 07:50 for operating day 08/01/2023 for ECRS 10.5 MW HE10, 15.3 MW HE11, 15.7 MW HE12, 16.3 MW HE13, 16.8 MW HE14; for RRS 13.5 MW HE10, 8.4 MW HE11, 7.9 MW HE12, 7.5 MW HE13, 7.2 MW HE14. Operational Information Cancelled
Aug 1, 2023 7:17:39 AM ERCOT will execute a SASM at 07:50 for operating day 08/01/2023 for ECRS 10.5 MW HE10, 15.3 MW HE11, 15.7 MW HE12, 16.3 MW HE13, 16.8 MW HE14; for RRS 13.5 MW HE10, 8.4 MW HE11, 7.9 MW HE12, 7.5 MW HE13, 7.2 MW HE14. Operational Information Active
Aug 1, 2023 12:00:54 AM No sudden loss of generation greater than 450 MW occurred on July 31, 2023. Operational Information Active