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Public Notices

This section contains public market notifications required by protocols as well as other market messages ERCOT may post for market transparency. ERCOT began archiving public notices November 3, 2011.

May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025
Date & Time Notice Type Status
Oct 25, 2025 8:47:16 AM The Daily RSASM for 10/25/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 25, 2025 12:01:40 AM No sudden loss of generation greater than 450 MW occurred on October 24, 2025. Operational Information Active
Oct 24, 2025 2:42:35 PM ERCOT has cancelled the following notice: The DC_R (Railroad) DC Tie will be unavailable from 10/13/2025 07:30 through 10/24/2025 16:00 due to a planned outage. Operational Information Cancelled
Oct 24, 2025 11:35:07 AM Notification of Real-Time Market (RTM) prices under investigation. ERCOT is currently investigating Real-Time prices for 3 SCED runs between 08:10 and 08:15 on OD 10/14/2025. Should a price correction be warranted, a follow-up Market Notice will be issued with more details. Alert Active
Oct 24, 2025 8:46:11 AM The Daily RSASM for 10/24/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 24, 2025 2:07:53 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 01:45 for operating day 10/24/25 this is for ECRS HE19: 8.4MW, HE20: 3.5MW, HE21: 3MW. REGDOWN HE9: 3.1MW, HE20-HE21: 4MW each hour, HE 22: 3MW. REGUP HE10: 8.9MW, HE20: 5.3MW, HE22: 8.9MW. Operational Information Cancelled
Oct 24, 2025 1:07:32 AM ERCOT will execute a SASM at 01:45 for operating day 10/24/25 this is for ECRS HE19: 8.4MW, HE20: 3.5MW, HE21: 3MW. REGDOWN HE9: 3.1MW, HE20-HE21: 4MW each hour, HE 22: 3MW. REGUP HE10: 8.9MW, HE20: 5.3MW, HE22: 8.9MW. Operational Information Active
Oct 24, 2025 12:02:03 AM No sudden loss of generation greater than 450 MW occurred on October 23, 2025. Operational Information Active
Oct 23, 2025 10:08:55 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 21:45 for operating day 10/24/25 this is for NONSPIN HE6: 78.4MW, HE7: 42.4MW, HE9: 29.2MW. REGUP HE7: 7.9MW, HE9: 9.8MW. Operational Information Cancelled
Oct 23, 2025 9:09:25 PM ERCOT will execute a SASM at 21:45 for operating day 10/24/25 this is for NONSPIN HE6: 78.4MW, HE7: 42.4MW, HE9: 29.2MW. REGUP HE7: 7.9MW, HE9: 9.8MW. Operational Information Active
Oct 23, 2025 8:11:57 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 19:45 for operating day 10/23/25 this is for REGDOWN HE23 97.5MW and for operating day 10/24/2025 REGUP HE1 30.5MW, HE2 5.1MW. Operational Information Cancelled
Oct 23, 2025 7:12:38 PM ERCOT will execute a SASM at 19:45 for operating day 10/23/25 this is for REGDOWN HE23 97.5MW and for operating day 10/24/2025 REGUP HE1 30.5MW, HE2 5.1MW. Operational Information Active
Oct 23, 2025 8:48:30 AM The Daily RSASM for 10/23/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 23, 2025 12:01:58 AM No sudden loss of generation greater than 450 MW occurred on October 22, 2025. Operational Information Active
Oct 22, 2025 8:46:05 AM The Daily RSASM for 10/22/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 22, 2025 12:12:43 AM No sudden loss of generation greater than 450 MW occurred on October 21, 2025. Operational Information Active
Oct 21, 2025 9:53:44 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 21:35 for operating day 10/22/25 this is for ECRS HE1 to HE24 8MWs each hour. Operational Information Cancelled
Oct 21, 2025 9:05:26 PM ERCOT will execute a SASM at 21:35 for operating day 10/22/25 this is for ECRS HE1 to HE24 8MWs each hour. Operational Information Active
Oct 21, 2025 8:25:15 PM At 20:24, All Non-Spin has been recalled. Operational Information Active
Oct 21, 2025 8:24:10 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 0.0, BEGIN_TIME: 2025-10-21 20:24:10, END_TIME: 2025-10-21 20:24:10, DURATION: 0 Hrs 0 Mins.; Operational Information
Oct 21, 2025 7:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 596.7, BEGIN_TIME: 2025-10-21 20:00:00, END_TIME: 2025-10-21 23:59:01, DURATION: 3 Hrs 59 Mins.; Operational Information
Oct 21, 2025 6:33:01 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 590.8, BEGIN_TIME: 2025-10-21 19:00:00, END_TIME: 2025-10-21 23:59:01, DURATION: 4 Hrs 59 Mins.; Operational Information
Oct 21, 2025 5:47:27 PM At 17:45 approximately 518 MW of Non-Spin has been deployed, anticipated duration is 23:59. Operational Information Active
Oct 21, 2025 5:45:40 PM CM-ASM-NOTF AS_TYPE: Non-Spin, DEPLOY_MW: 518.3, BEGIN_TIME: 2025-10-21 17:45:40, END_TIME: 2025-10-21 23:59:01, DURATION: 6 Hrs 13 Mins.; Operational Information
Oct 21, 2025 8:46:06 AM The Daily RSASM for 10/21/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 21, 2025 12:09:53 AM No sudden loss of generation greater than 450 MW occurred on October 20, 2025. Operational Information Active
Oct 20, 2025 7:41:52 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at 18:45 for operating day 10/20/25 for ECRS HE24 19MW and for operating day 10/21/25 for ECRS HE1-HE17 19MW each hour HE24 19MW. Operational Information Cancelled
Oct 20, 2025 6:27:02 PM ERCOT will execute a SASM at 18:45 for operating day 10/20/25 for ECRS HE24 19MW and for operating day 10/21/25 for ECRS HE1-HE17 19MW each hour HE24 19MW. Operational Information Active
Oct 20, 2025 8:46:04 AM The Daily RSASM for 10/20/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 20, 2025 4:48:00 AM The minimum monthly Ancillary Services quantities have been posted to the ERCOT Website; Data Products; Grid; Forecasts under the Projected Ancillary Service Requirements link located under the Reports & Extracts heading. The posted quantities reflect minimum requirements only. ERCOT will follow-up with a Notification if any upward adjustments to these minimum quantities are made. https://mis.ercot.com/secure/data-products/grid/forecasts AS Postings Active
Oct 20, 2025 1:24:54 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [00:50] for operating day [10/20/2025] for: ECRS – 14 MW HE 08 - 23 Operational Information Cancelled
Oct 20, 2025 12:12:11 AM ERCOT will execute a SASM at [00:50] for operating day [10/20/2025] for: ECRS – 14 MW HE 08 - 23 Operational Information Active
Oct 20, 2025 12:00:30 AM No sudden loss of generation greater than 450 MW occurred on October 19, 2025. Operational Information Active
Oct 19, 2025 8:46:30 AM The Daily RSASM for 10/19/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 19, 2025 12:01:03 AM No sudden loss of generation greater than 450 MW occurred on October 18, 2025. Operational Information Active
Oct 18, 2025 4:16:42 PM ERCOT has cancelled the following notice: ERCOT is taking manual action for the SAMSW GTC due to topology changes Operational Information Cancelled
Oct 18, 2025 11:43:38 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [10:45] for operating day 10/18/25 for HE20 16.6MW REGUP, HE21 2.5MW ECRS, 6.1MW REGUP, and 7.8MW RRS, HE22 14.5MW RRS. Operational Information Cancelled
Oct 18, 2025 10:06:22 AM ERCOT will execute a SASM at [10:45] for operating day 10/18/25 for HE20 16.6MW REGUP, HE21 2.5MW ECRS, 6.1MW REGUP, and 7.8MW RRS, HE22 14.5MW RRS. Operational Information Active
Oct 18, 2025 9:23:08 AM ERCOT is taking manual action for the SAMSW GTC due to topology changes Operational Information Active
Oct 18, 2025 8:46:21 AM The Daily RSASM for 10/18/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 18, 2025 12:00:56 AM No sudden loss of generation greater than 450 MW occurred on October 17, 2025. Operational Information Active
Oct 17, 2025 6:02:28 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [17:50] for operating day [10/17/2025] for: RRS – 38 MW HE 20, 4.3 MW HE 21, 84.5 MW HE 22, 52.4 MW HE 23 ECRS – 12 MW HE 20, 2 MW HE 21, 3.2 MW HE 22 NONSPIN – 22.2 MW HE 21, 41.2 MW HE 22, 12.1 MW HE 23 REGDN – 30 MW HE 21 REGUP – 60 MW HE 21, 21 MW HE 22, 28.5 MW HE 23, 30 MW HE 24 Operational Information Cancelled
Oct 17, 2025 5:14:25 PM ERCOT will execute a SASM at [17:50] for operating day [10/17/2025] for: RRS – 38 MW HE 20, 4.3 MW HE 21, 84.5 MW HE 22, 52.4 MW HE 23 ECRS – 12 MW HE 20, 2 MW HE 21, 3.2 MW HE 22 NONSPIN – 22.2 MW HE 21, 41.2 MW HE 22, 12.1 MW HE 23 REGDN – 30 MW HE 21 REGUP – 60 MW HE 21, 21 MW HE 22, 28.5 MW HE 23, 30 MW HE 24 Operational Information Active
Oct 17, 2025 8:46:25 AM The Daily RSASM for 10/17/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 17, 2025 1:03:43 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [0045] for operating day 10/17/2025 for 24 MW ECRS and 7.6 MW RRS for HE 19, and 24MW ECRS and 7.7MW RRS for HE 20 Operational Information Cancelled
Oct 17, 2025 12:06:09 AM ERCOT will execute a SASM at [0045] for operating day 10/17/2025 for 24 MW ECRS and 7.6 MW RRS for HE 19, and 24MW ECRS and 7.7MW RRS for HE 20 Operational Information Active
Oct 17, 2025 12:02:46 AM No sudden loss of generation greater than 450 MW occurred on October 16, 2025. Operational Information Active
Oct 16, 2025 8:46:27 AM The Daily RSASM for 10/16/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 16, 2025 12:02:31 AM No sudden loss of generation greater than 450 MW occurred on October 15, 2025. Operational Information Active
Oct 15, 2025 8:46:09 AM The Daily RSASM for 10/15/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 15, 2025 5:16:49 AM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [04:50] for operating day [10/15/2025] for: RRS – 11.9 MW HE 12, 7.8 MW HE 13, 8.1 MW HE 14, 7.4 MW HE 15. 7.8 MW HE 16, 8.1 MW HE 17, 7.5 MW HE 18, 7.4 MW HE 19, 7.1 MW HE 20 ECRS – 24 MW HE 12 - 20 Operational Information Cancelled
Oct 15, 2025 4:16:58 AM ERCOT will execute a SASM at [04:50] for operating day [10/15/2025] for: RRS – 11.9 MW HE 12, 7.8 MW HE 13, 8.1 MW HE 14, 7.4 MW HE 15. 7.8 MW HE 16, 8.1 MW HE 17, 7.5 MW HE 18, 7.4 MW HE 19, 7.1 MW HE 20 ECRS – 24 MW HE 12 - 20 Operational Information Active
Oct 15, 2025 12:06:20 AM No sudden loss of generation greater than 450 MW occurred on October 14, 2025. Operational Information Active
Oct 14, 2025 3:24:37 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [15:10] for operating day [10/14/2025] for: RRS – 1.2 MW HE 19 ECRS – 24 MW HE 19 - 20 Operational Information Cancelled
Oct 14, 2025 2:31:11 PM ERCOT will execute a SASM at [15:10] for operating day [10/14/2025] for: RRS – 1.2 MW HE 19 ECRS – 24 MW HE 19 - 20 Operational Information Active
Oct 14, 2025 2:19:26 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [12:50] for operating day [10/14/2025] for: RRS – 7.3 MW HE 19 - 20 ECRS – 24 MW HE 19 - 20 Operational Information Cancelled
Oct 14, 2025 12:11:45 PM ERCOT will execute a SASM at [12:50] for operating day [10/14/2025] for: RRS – 7.3 MW HE 19 - 20 ECRS – 24 MW HE 19 - 20 Operational Information Active
Oct 14, 2025 8:47:43 AM The Daily RSASM for 10/14/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 14, 2025 12:04:17 AM No sudden loss of generation greater than 450 MW occurred on October 13, 2025. Operational Information Active
Oct 13, 2025 2:36:10 PM Notification of Real-Time Market (RTM) prices under investigation. ERCOT is currently investigating Real-Time prices for SCED interval 08:20 on OD 10/12/2025. 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 10/14/2025 at 4PM for OD 10/12/2025. Alert Active
Oct 13, 2025 8:50:19 AM The Daily RSASM for 10/13/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 13, 2025 8:10:04 AM The DC_R (Railroad) DC Tie will be unavailable from 10/13/2025 07:30 through 10/24/2025 16:00 due to a planned outage. Operational Information Active
Oct 13, 2025 12:18:24 AM No sudden loss of generation greater than 450 MW occurred on October 12, 2025. Operational Information Active
Oct 12, 2025 8:47:09 AM The Daily RSASM for 10/12/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 12, 2025 12:14:06 AM No sudden loss of generation greater than 450 MW occurred on October 11, 2025. Operational Information Active
Oct 11, 2025 8:47:15 AM The Daily RSASM for 10/11/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 11, 2025 12:06:41 AM No sudden loss of generation greater than 450 MW occurred on October 10, 2025. Operational Information Active
Oct 10, 2025 8:46:44 AM The Daily RSASM for 10/10/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 10, 2025 3:36:28 AM ERCOT will be working from the primary control center until further notice, use the OPX numbers for Taylor. Operational Information Active
Oct 10, 2025 3:36:14 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
Oct 10, 2025 12:00:41 AM No sudden loss of generation greater than 450 MW occurred on October 09, 2025. Operational Information Active
Oct 9, 2025 8:33:49 PM ERCOT has cancelled the following notice: The ESKOTA RAS has been taken out of service due to a planned outage. Operational Information Cancelled
Oct 9, 2025 3:45:25 PM ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Active
Oct 9, 2025 8:47:07 AM The Daily RSASM for 10/09/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 9, 2025 5:33:02 AM The ESKOTA RAS has been taken out of service due to a planned outage. Operational Information Active
Oct 9, 2025 12:00:43 AM No sudden loss of generation greater than 450 MW occurred on October 08, 2025. Operational Information Active
Oct 8, 2025 7:32:04 PM ERCOT has cancelled the following notice: GCC ERCOT will execute a SASM at [18:50] for operating day [10/08/2025] for: REGUP – 9 MW HE 22 – HE24 REGDN – 4.5 MW HE 22, 4.3 MW HE 23, 4.5 MW HE 24 [10/09/2025] for: REGUP – 9 MW HE 1 – HE 24 REGDN – 4.5 MW HE 1, 4.8 MW HE 2, 4.5 MW HE 3, 4.8 MW HE 4, 4.5 MW HE 5, 4.8 MW HE 6, 4.5 MW HE 7, 4.8 MW HE 8, 4.5 MW HE 9, 4.8 MW HE 10, 4.5 MW HE 11, 4.8 MW HE 12, 4.5 MW HE 13, 4.8 MW HE 14, 4.5 MW HE 15, 4.8 MW HE 16, 4.5 MW HE 17, 4.8 MW HE 18, 4.5 MW HE 19, 4.8 MW HE 20, 4.5 MW HE 21, 4.8 MW HE 22, 4.5 MW HE 23, 4.8 MW HE 24 Operational Information Cancelled
Oct 8, 2025 6:14:35 PM GCC ERCOT will execute a SASM at [18:50] for operating day [10/08/2025] for: REGUP – 9 MW HE 22 – HE24 REGDN – 4.5 MW HE 22, 4.3 MW HE 23, 4.5 MW HE 24 [10/09/2025] for: REGUP – 9 MW HE 1 – HE 24 REGDN – 4.5 MW HE 1, 4.8 MW HE 2, 4.5 MW HE 3, 4.8 MW HE 4, 4.5 MW HE 5, 4.8 MW HE 6, 4.5 MW HE 7, 4.8 MW HE 8, 4.5 MW HE 9, 4.8 MW HE 10, 4.5 MW HE 11, 4.8 MW HE 12, 4.5 MW HE 13, 4.8 MW HE 14, 4.5 MW HE 15, 4.8 MW HE 16, 4.5 MW HE 17, 4.8 MW HE 18, 4.5 MW HE 19, 4.8 MW HE 20, 4.5 MW HE 21, 4.8 MW HE 22, 4.5 MW HE 23, 4.8 MW HE 24 Operational Information Active
Oct 8, 2025 10:25:19 AM Notification of Real-Time Market (RTM) prices under investigation. ERCOT is currently investigating Real-Time prices for settlement intervals 08:00 - 09:30, which were impacted by a SCED failure from 08:00 to 09:30. 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 10/10/2025 at 4PM for OD 10/08/2025. Alert Active
Oct 8, 2025 8:53:51 AM ERCOT has cancelled the following notice: ERCOT has declared a Watch due to the failure of the SCED process, starting at 08:10 Watch Cancelled
Oct 8, 2025 8:46:14 AM The Daily RSASM for 10/08/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 8, 2025 8:45:20 AM ERCOT Emergency Base Points are Disabled Operational Information Cancelled
Oct 8, 2025 8:12:21 AM ERCOT has declared a Watch due to the failure of the SCED process, starting at 08:10 Watch Active
Oct 8, 2025 8:07:24 AM ERCOT Emergency Base Points are Enabled Operational Information Active
Oct 8, 2025 12:02:05 AM No sudden loss of generation greater than 450 MW occurred on October 07, 2025. Operational Information Active
Oct 7, 2025 10:09:28 PM ERCOT has cancelled the following notice: Posted to GCC ERCOT will execute a SASM at [21:50] for operating day [10/08/2025] for: REGUP – 9 MW HE 01 – HE 18 REGDN – 4.3 MW HE 1, 4.5 MW HE 2, 4.3 MW HE 3, 4.5 MW HE 4, 4.3 MW HE 5, 4.5 MW HE 6, 4.3 MW HE 7, 4.5 MW HE 8, 4.3 MW HE 9, 4.5 MW HE 10, 4.3 MW HE 11, 4.5 MW HE 12, 4.3 MW HE 13, 4.5 MW HE 14, 4.3 MW HE 15, 4.5 MW HE 16, 4.3 MW HE 17, 4.5 MW HE 18. Operational Information Cancelled
Oct 7, 2025 9:18:39 PM Posted to GCC ERCOT will execute a SASM at [21:50] for operating day [10/08/2025] for: REGUP – 9 MW HE 01 – HE 18 REGDN – 4.3 MW HE 1, 4.5 MW HE 2, 4.3 MW HE 3, 4.5 MW HE 4, 4.3 MW HE 5, 4.5 MW HE 6, 4.3 MW HE 7, 4.5 MW HE 8, 4.3 MW HE 9, 4.5 MW HE 10, 4.3 MW HE 11, 4.5 MW HE 12, 4.3 MW HE 13, 4.5 MW HE 14, 4.3 MW HE 15, 4.5 MW HE 16, 4.3 MW HE 17, 4.5 MW HE 18. Operational Information Active
Oct 7, 2025 9:18:20 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [17:50] for operating day [10/08/2025] for: REGUP – 9 MW HE 01 – HE 18 REGDN – 4.3 MW HE 1, 4.5 MW HE 2, 4.3 MW HE 3, 4.5 MW HE 4, 4.3 MW HE 5, 4.5 MW HE 6, 4.3 MW HE 7, 4.5 MW HE 8, 4.3 MW HE 9, 4.5 MW HE 10, 4.3 MW HE 11, 4.5 MW HE 12, 4.3 MW HE 13, 4.5 MW HE 14, 4.3 MW HE 15, 4.5 MW HE 16, 4.3 MW HE 17, 4.5 MW HE 18. Operational Information Cancelled
Oct 7, 2025 9:14:07 PM ERCOT will execute a SASM at [17:50] for operating day [10/08/2025] for: REGUP – 9 MW HE 01 – HE 18 REGDN – 4.3 MW HE 1, 4.5 MW HE 2, 4.3 MW HE 3, 4.5 MW HE 4, 4.3 MW HE 5, 4.5 MW HE 6, 4.3 MW HE 7, 4.5 MW HE 8, 4.3 MW HE 9, 4.5 MW HE 10, 4.3 MW HE 11, 4.5 MW HE 12, 4.3 MW HE 13, 4.5 MW HE 14, 4.3 MW HE 15, 4.5 MW HE 16, 4.3 MW HE 17, 4.5 MW HE 18. Operational Information Active
Oct 7, 2025 6:26:09 PM ERCOT has cancelled the following notice: The ESKOTA RAS has been taken out of service due to a forced outage. Operational Information Cancelled
Oct 7, 2025 6:08:35 PM ERCOT has cancelled the following notice: ERCOT will execute a SASM at [17:50] for operating day [10/07/2025] for: REGUP – 9 MW HE 20 – HE 24 REGDN – 4.5 MW HE 20, 4.3 MW HE 21, 4.5 MW HE 22, 4.3 MW HE 23, 4.5 MW HE 24 Operational Information Cancelled
Oct 7, 2025 5:39:26 PM Frequency Measurable Events: Report tracking Frequency Measurable Events (FMEs) as of 10/07/2025 is available. Operational Instruction Active
Oct 7, 2025 5:17:40 PM ERCOT will execute a SASM at [17:50] for operating day [10/07/2025] for: REGUP – 9 MW HE 20 – HE 24 REGDN – 4.5 MW HE 20, 4.3 MW HE 21, 4.5 MW HE 22, 4.3 MW HE 23, 4.5 MW HE 24 Operational Information Active
Oct 7, 2025 1:51:03 PM The ESKOTA RAS has been taken out of service due to a forced outage. Operational Information Active
Oct 7, 2025 10:57:52 AM Notification of Real-Time Market (RTM) prices under investigation. ERCOT is currently investigating Real-Time prices for settlement intervals 00:15 - 00:45, which were impacted by a SCED failure from 00:00 to 00:25. 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 10/09/2025 at 4PM for OD 10/07/2025. Alert Active
Oct 7, 2025 8:47:37 AM The Daily RSASM for 10/07/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 7, 2025 12:35:33 AM ERCOT has cancelled the following notice: ERCOT has declared a Watch due to the failure of the SCED process, starting at 00:02 Watch Cancelled
Oct 7, 2025 12:32:14 AM ERCOT Emergency Base Points are Disabled Operational Information Cancelled
Oct 7, 2025 12:09:54 AM ERCOT has declared a Watch due to the failure of the SCED process, starting at 00:02 Watch Active
Oct 7, 2025 12:02:22 AM ERCOT Emergency Base Points are Enabled Operational Information Active
Oct 7, 2025 12:00:56 AM No sudden loss of generation greater than 450 MW occurred on October 06, 2025. Operational Information Active
Oct 6, 2025 12:16:11 PM The DC_R (Railroad) DC Tie will be unavailable from 10/13/2025 07:30 through 10/24/2025 16:00 due to a planned outage. Operational Information Active
Oct 6, 2025 8:46:18 AM The Daily RSASM for 10/06/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 6, 2025 12:02:12 AM No sudden loss of generation greater than 450 MW occurred on October 05, 2025. Operational Information Active
Oct 5, 2025 8:46:06 AM The Daily RSASM for 10/05/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 5, 2025 12:03:45 AM No sudden loss of generation greater than 450 MW occurred on October 04, 2025. Operational Information Active
Oct 4, 2025 8:45:57 AM The Daily RSASM for 10/04/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 4, 2025 12:02:19 AM No sudden loss of generation greater than 450 MW occurred on October 03, 2025. Operational Information Active
Oct 3, 2025 8:46:24 AM The Daily RSASM for 10/03/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 3, 2025 12:08:21 AM No sudden loss of generation greater than 450 MW occurred on October 02, 2025. Operational Information Active
Oct 2, 2025 3:30:47 PM Frequency Measurable Events: Report tracking Frequency Measurable Events (FMEs) as of 10/02/2025 is available. Operational Instruction Active
Oct 2, 2025 11:22:47 AM At 3:30 PM on 10/02/2025, 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 Active
Oct 2, 2025 8:46:09 AM The Daily RSASM for 10/02/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 2, 2025 7:01:01 AM ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Alert for a K-7 on 10/02/2025 at 00:59. Operational Information Cancelled
Oct 2, 2025 7:00:08 AM ERCOT has cancelled the following notice: The Space Weather Prediction Center has issued a GMD Warning of K-7 or Greater until 10/02/2025 at 07:00. Operational Information Cancelled
Oct 2, 2025 1:10:15 AM The Space Weather Prediction Center has issued a GMD Alert for a K-7 on 10/02/2025 at 00:59. Operational Information Active
Oct 2, 2025 12:25:14 AM No sudden loss of generation greater than 450 MW occurred on October 01, 2025. Operational Information Active
Oct 1, 2025 11:28:59 PM The Space Weather Prediction Center has issued a GMD Warning of K-7 or Greater until 10/02/2025 at 07:00. Operational Information Active
Oct 1, 2025 8:50:44 AM The Daily RSASM for 10/01/2025 will not be occurring due to zero participating QSEs. Operational Information Active
Oct 1, 2025 12:21:53 AM No sudden loss of generation greater than 450 MW occurred on September 30, 2025. Operational Information Active