Operations Messages |
This section contains important messages from the ERCOT Control Room. Refresh this screen to see current operation messages. (Subscribe to Operations Messages 
RSS feed.)
| May 2013 | Apr 2013 | Mar 2013 | Feb 2013 | Jan 2013 | Dec 2012 |
| Date | Message | Type | Status | |
|---|---|---|---|---|
| May 24 2013 20:43:03 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions for the SSPUMW18 unsolved contingency. | Operational Information | Cancelled | |
| May 24 2013 08:52:19 CST | Daily reconfiguration SASM for Friday, May 24, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 24 2013 06:11:14 CST | No sudden loss of generation greater than 450 MW occurred on 05/23/13. | Operational Information | Active | |
| May 24 2013 03:27:32 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 24 2013 02:23:59 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 23 2013 23:39:22 CST | ERCOT is taking manual actions for the SSPUMW18 unsolved contingency. | Operational Information | Active | |
| May 23 2013 22:02:45 CST | ERCOT has cancelled the following notice: ERCOT issued a Tansmission Watch for the Laredo area for contigency XLOB58. | Operational Information | Cancelled | |
| May 23 2013 12:17:54 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 23 2013 12:17:41 CST | ERCOT issued a Tansmission Watch for the Laredo area for contigency XLOB58. | Operational Information | Active | |
| May 23 2013 12:17:17 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 23 2013 10:58:13 CST | ERCOT has cancelled the following notice: ERCOT issued a Tansmission Watch for the Laredo and Eagle Pass areas for contigency SBIGDIL8. | Watch | Cancelled | |
| May 23 2013 08:46:27 CST | Daily Reconfiguration SASM for Thursday May 23, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 23 2013 07:54:41 CST | ERCOT issued a Tansmission Watch for the Laredo and Eagle Pass areas for contigency SBIGDIL8. | Watch | Active | |
| May 23 2013 07:25:29 CST | On 05/22/13, a sudden loss of generation occurred at 16:11 totaling 834 MW. Frequency declined to 59.746 Hz, ERCOT load was 50, 047 MW. | Operational Information | Active | |
| May 23 2013 01:09:08 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 23 2013 00:00:05 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 22 2013 22:56:41 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 22 2013 22:31:16 CST | ERCOT has cancelled the following notice: ERCOT issued a transmission watch the Eagle Pass area for contingency SBIGDIL | Watch | Cancelled | |
| May 22 2013 14:21:39 CST | ERCOT has cancelled the following notice: At 00:00 on May 22 2013, ERCOT will perform a site failover of its Energy and Market Management Systems from 10:38 through 10:48 During this time, market communications will be unavailable for about 30 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 the start of the failover. | OCN | Cancelled | |
| May 22 2013 10:41:01 CST | EMMS Site Failover: At 00:00 on May 22 2013, ERCOT will perform a site failover of its Energy and Market Management Systems from 10:38 through 10:48 During this time, market communications will be unavailable for about 30 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 the start of the failover. | OCN | Active | |
| May 22 2013 08:50:02 CST | Daily Reconfiguration SASM for Wednesday May 22, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 22 2013 08:43:57 CST | ERCOT issued a transmission watch the Eagle Pass area for contingency SBIGDIL | Watch | Active | |
| May 22 2013 06:28:07 CST | No sudden loss of generation greater than 450 MW occurred on 05/21/13. | Operational Information | Active | |
| May 21 2013 22:05:17 CST | ERCOT has cancelled the following notice: Export Schedules to CFE on DC-Tie LARDVFTS was curtailed due to the post contingency loss of 345kv line Lobo to San Miguel overloads 69kv line Freer to San Diego. | Operational Information | Cancelled | |
| May 21 2013 14:52:36 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 21 2013 14:51:13 CST | Export Schedules to CFE on DC-Tie LARDVFTS was curtailed due to the post contingency loss of 345kv line Lobo to San Miguel overloads 69kv line Freer to San Diego. | Operational Information | Active | |
| May 21 2013 11:54:18 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 21 2013 08:50:38 CST | Daily Reconfiguration SASM for Tuesday May 21, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 21 2013 06:09:54 CST | No sudden loss of generation greater than 450 MW occurred on 05/20/13. | Operational Information | Active | |
| May 20 2013 09:01:31 CST | Daily Reconfiguration SASM for Monday May 20, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 20 2013 06:35:23 CST | No sudden loss of generation greater than 450 MW occurred on 05/19/13. | Operational Information | Active | |
| May 19 2013 08:53:26 CST | Daily Reconfiguration SASM for Sunday May 19, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 19 2013 07:25:51 CST | No sudden loss of generation greater than 450 MW occurred on 05/18/13. | Operational Information | Active | |
| May 18 2013 08:51:41 CST | Daily Reconfiguration SASM for Saturday May 18, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 18 2013 07:13:31 CST | On 05/17/13, a sudden loss of generation occurred at 13:38 totaling 523 MW. Frequency declined to 59.878 Hz, ERCOT load was 48, 858 MW. | Operational Information | Active | |
| May 17 2013 20:56:43 CST | ERCOT has cancelled the following notice: Export schedules to CFE on DC Ties Laredo VFTS and the Eagle Pass DC tie was curtailed due to the post contingency loss of SBIGDIL8 overloads 69kv line Crystal/TURTLCRK. | Watch | Cancelled | |
| May 17 2013 11:05:24 CST | Export schedules to CFE on DC Ties Laredo VFTS and the Eagle Pass DC tie was curtailed due to the post contingency loss of SBIGDIL8 overloads 69kv line Crystal/TURTLCRK. | Watch | Active | |
| May 17 2013 08:56:45 CST | Daily Reconfiguration SASM for Friday May 17, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 17 2013 06:56:55 CST | No sudden loss of generation greater than 450 MW occurred on 05/16/13. | Operational Information | Active | |
| May 17 2013 05:14:07 CST | ERCOT is working from the primary control center. | Operational Information | Active | |
| May 17 2013 05:13:59 CST | ERCOT has cancelled the following notice: ERCOT will be conducting primary operations from its alternate Control Center. | Operational Information | Cancelled | |
| May 16 2013 22:03:25 CST | ERCOT has cancelled the following notice: Export schedules to CFE on DC Ties Laredo VFTS and the Eagle Pass DC tie was curtailed due to the unsolved post contingency loss of the San Miguel to Lobo 345 KV line. | Watch | Cancelled | |
| May 16 2013 16:48:31 CST | ERCOT will be conducting primary operations from its alternate Control Center. | Operational Information | Active | |
| May 16 2013 16:21:04 CST | Export schedules to CFE on DC Ties Laredo VFTS and the Eagle Pass DC tie was curtailed due to the unsolved post contingency loss of the San Miguel to Lobo 345 KV line. | Watch | Active | |
| May 16 2013 14:07:56 CST | ERCOT has cancelled the following notice: Export schedules to CFE on DC Ties Laredo VFTS was curtailed due to the post contingency loss of the San Miguel to Lobo 345 KV line overloads Freer to San Diego 69 KV line | Watch | Cancelled | |
| May 16 2013 13:18:04 CST | ERCOT has cancelled the following notice: Laredo DC Tie is currently limited to 60 mws due to transmission issues. | Operational Information | Cancelled | |
| May 16 2013 13:17:20 CST | ERCOT has cancelled the following notice: Laredo DC Tie is currently limited to 60 mws due to transmission issues. | Operational Information | Cancelled | |
| May 16 2013 12:48:10 CST | Laredo DC Tie is currently limited to 60 mws due to transmission issues. | Operational Information | Active | |
| May 16 2013 12:12:46 CST | Laredo DC Tie is currently limited to 0 mws due to transmission issues. | Operational Information | Active | |
| May 16 2013 12:12:36 CST | Laredo DC Tie is currently limited to 0 mws due to transmission issues. | Operational Information | Deleted | |
| May 16 2013 11:58:48 CST | Laredo DC Tie is currently limited to 60 mws due to transmission issues. | Operational Information | Active | |
| May 16 2013 11:53:33 CST | Export schedules to CFE on DC Ties Laredo VFTS was curtailed due to the post contingency loss of the San Miguel to Lobo 345 KV line overloads Freer to San Diego 69 KV line | Watch | Active | |
| May 16 2013 08:52:38 CST | Daily Reconfiguration SASM for Thursday May 16, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 16 2013 07:07:57 CST | No sudden loss of generation greater than 450 MW occurred on 05/15/13. | Operational Information | Active | |
| May 15 2013 08:51:30 CST | Daily Reconfiguration SASM for Wednesday May 15, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 15 2013 08:44:46 CST | No sudden loss of generation greater than 450 MW occurred on 05/14/13. | Operational Information | Active | |
| May 15 2013 08:15:23 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 15 2013 07:01:10 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 14 2013 18:31:51 CST | ERCOT has cancelled the following notice: Ercot is taking manual actions for the planned outage on the Elkton to Forney Sw. 345 KV line | Operational Information | Cancelled | |
| May 14 2013 08:52:49 CST | Daily Reconfiguration SASM for Tuesday May 14, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 14 2013 07:53:17 CST | Ercot is taking manual actions for the planned outage on the Elkton to Forney Sw. 345 KV line | Operational Information | Active | |
| May 14 2013 06:24:13 CST | No sudden loss of generation greater than 450 MW occurred on 05/13/13. | Operational Information | Active | |
| May 13 2013 09:34:21 CST | Daily Reconfiguration SASM for Monday May 13, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 13 2013 06:30:52 CST | No sudden loss of generation greater than 450 MW occurred on 05/12/13. | Operational Information | Active | |
| May 12 2013 08:47:18 CST | Daily Reconfiguration SASM for Sunday May 12, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 12 2013 08:24:07 CST | No sudden loss of generation greater than 450 MW occurred on 05/11/13. | Operational Information | Active | |
| May 11 2013 08:49:44 CST | Daily Reconfiguration SASM for Saturday May 11, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 11 2013 08:43:21 CST | Daily Reconfiguration SASM for Friday May 10, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 11 2013 08:41:33 CST | ERCOT has cancelled the following notice: Daily Reconfiguration SASM for Thursday May 10, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Cancelled | |
| May 11 2013 08:13:08 CST | No sudden loss of generation greater than 450 MW occurred on 05/10/13. | Operational Information | Active | |
| May 10 2013 19:12:54 CST | ERCOT has cancelled the following notice: Export schedules to CFE DC Tie Laredo was curtailed due to post contingency SLOBSAN5 overloads Freer/San Diego. | Operational Information | Cancelled | |
| May 10 2013 14:47:21 CST | Export schedules to CFE DC Tie Laredo was curtailed due to post contingency SLOBSAN5 overloads Freer/San Diego. | Operational Information | Active | |
| May 10 2013 08:53:47 CST | Daily Reconfiguration SASM for Thursday May 10, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 10 2013 06:31:19 CST | No sudden loss of generation greater than 450 MW occurred on 05/09/13. | Operational Information | Active | |
| May 09 2013 21:19:25 CST | ERCOT has cancelled the following notice: ERCOT is issuing a Transmission watch for Laredo area due to forced outage. | Watch | Cancelled | |
| May 09 2013 20:56:59 CST | ERCOT has cancelled the following notice: ERCOT is issuing a Transmission watch for Laredo area due to forced outage. | Watch | Cancelled | |
| May 09 2013 20:56:40 CST | ERCOT has cancelled the following notice: Export schedules to CFE to Laredo VFT was curtailed due to the post contingency loss of the Lobo 345/138kv transformer overloads 69kv line Freer to Lobo. | Operational Information | Cancelled | |
| May 09 2013 17:59:51 CST | ERCOT is issuing a Transmission watch for Laredo area due to forced outage. | Watch | Active | |
| May 09 2013 17:58:42 CST | Export schedules to CFE to Laredo VFT was curtailed due to the post contingency loss of the Lobo 345/138kv transformer overloads 69kv line Freer to Lobo. | Operational Information | Active | |
| May 09 2013 17:34:47 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions on XLOB58. | Operational Information | Cancelled | |
| May 09 2013 17:20:13 CST | ERCOT is taking manual actions on XLOB58. | Operational Information | Active | |
| May 09 2013 08:54:57 CST | Daily Reconfiguration SASM for Thursday May 9, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 09 2013 06:58:57 CST | No sudden loss of generation greater than 450 MW occurred on 05/08/13. | Operational Information | Active | |
| May 08 2013 17:35:42 CST | ERCOT has cancelled the following notice: Emergency Notice issued due to Site Failover taking longer than expected. Emergency Base point may be issued for frequency control. | Emergency Notice | Cancelled | |
| May 08 2013 17:34:52 CST | ERCOT has cancelled the following notice: ERCOT's RTCA and State Estimator have not solved in the last 15 minutes. Please monitor your own service area and notify ERCOT if you exceed the normal rating of your transmission elements. Continue to monitor voltages in your area and notify ERCOT of any forced line operations in your area. | Advisory | Cancelled | |
| May 08 2013 17:24:06 CST | Loss of ERCOTs RTCA and SE > 15 minutes: ERCOT's RTCA and State Estimator have not solved in the last 15 minutes. Please monitor your own service area and notify ERCOT if you exceed the normal rating of your transmission elements. Continue to monitor voltages in your area and notify ERCOT of any forced line operations in your area. | Advisory | Active | |
| May 08 2013 17:00:54 CST | Emergency Notice issued due to Site Failover taking longer than expected. Emergency Base point may be issued for frequency control. | Emergency Notice | Active | |
| May 08 2013 15:21:25 CST | ERCOT has cancelled the following notice: ERCOT issued a Transmission Watch for the far west area. | Operational Information | Cancelled | |
| May 08 2013 14:57:38 CST | ERCOT issued a Transmission Watch for the far west area. | Operational Information | Active | |
| May 08 2013 14:56:42 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions for XMGS358 constraint. | Operational Information | Cancelled | |
| May 08 2013 14:30:39 CST | ERCOT is taking manual actions for XMGS358 constraint. | Operational Information | Active | |
| May 08 2013 08:52:22 CST | Daily Reconfiguration SASM for Wednesday May 8, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 08 2013 06:53:05 CST | On 05/07/13, a sudden loss of generation occurred at 03:07 totaling 499 MW. Frequency declined to 59.852 Hz, ERCOT load was 24, 675 MW. | Operational Information | Active | |
| May 08 2013 02:16:41 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions for the GILA_NBEC8 basecase. | Operational Information | Cancelled | |
| May 07 2013 14:12:56 CST | ERCOT is taking manual actions for the GILA_NBEC8 basecase. | Operational Information | Active | |
| May 07 2013 13:36:14 CST | EMMS Site Failover: At 16:20 on May 08 2013, ERCOT will perform a site failover of its Energy and Market Management Systems from 16:20 through 16:50 During this time, market communications will be unavailable for about 30 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 the start of the failover. | OCN | Active | |
| May 07 2013 08:50:20 CST | Daily Reconfiguration SASM for Tuesday May 7, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 07 2013 05:05:00 CST | No sudden loss of generation greater than 450 MW occurred on 05/06/13. | Operational Information | Active | |
| May 06 2013 15:07:32 CST | ERCOT has cancelled the following notice: Austrop 2 SPS has been taken out of service | Operational Information | Cancelled | |
| May 06 2013 08:53:53 CST | Daily Reconfiguration SASM for Monday May 6, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 06 2013 08:24:44 CST | Austrop 2 SPS has been taken out of service | Operational Information | Active | |
| May 06 2013 05:50:05 CST | No sudden loss of generation greater than 450 MW occurred on 05/05/13. | Operational Information | Active | |
| May 06 2013 04:39:09 CST | ERCOT has cancelled the following notice: The Eagle Pass DC Tie will be unavailable from 00:05 05/03/2013 through 23:00 05/03/2013 due to a forced outage. | Operational Information | Cancelled | |
| May 05 2013 08:58:01 CST | Daily Reconfiguration SASM for Sunday May 5, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 05 2013 06:20:38 CST | No sudden loss of generation greater than 450 MW occurred on 05/04/13. | Operational Information | Active | |
| May 04 2013 08:53:22 CST | Daily Reconfiguration SASM for Saturday, May 4, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 04 2013 06:40:56 CST | No sudden loss of generation greater than 450 MW occurred on 05/03/13. | Operational Information | Active | |
| May 03 2013 08:49:47 CST | Daily Reconfiguration SASM for Thursday, May 3, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 03 2013 08:10:08 CST | The Barney Davis SPS has been taken out of service. | Operational Information | Active | |
| May 03 2013 06:31:30 CST | No sudden loss of generation greater than 450 MW occurred on 05/02/13. | Operational Information | Active | |
| May 03 2013 02:32:33 CST | DC Tie Outage: The Eagle Pass DC Tie will be unavailable from 00:05 05/03/2013 through 23:00 05/03/2013 due to a forced outage. | Operational Information | Active | |
| May 02 2013 20:30:56 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 02 2013 08:49:07 CST | Daily Reconfiguration SASM for Thursday, May 2, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 02 2013 06:13:00 CST | No sudden loss of generation greater than 450 MW occurred on 05/01/13. | Operational Information | Active | |
| May 02 2013 02:24:34 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 01 2013 08:50:36 CST | Daily Reconfiguration SASM for Wednesday, May 1, 2013 will not be occurring due to zero participating QSEs. | Operational Information | Active | |
| May 01 2013 06:58:00 CST | No sudden loss of generation greater than 450 MW occurred on 04/30/13. | Operational Information | Active | |