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 2012 | Apr 2012 | Mar 2012 | Feb 2012 | Jan 2012 | Dec 2011 |
| Date | Message | Type | Status | |
|---|---|---|---|---|
| May 24 2012 13:42:13 CST | ERCOT is deploying Non-Spin Reserve for XATK89 constraint. | Operational Information | Active | |
| May 24 2012 13:28:07 CST | ERCOT has postponed the deadline for the posting of the DAM Solution for Operating Day May 25, 2012 due to a long solution time. | Watch | Active | |
| May 24 2012 12:26:09 CST | Test Message on Notice Builder/Twitter: This is a test of the ERCOT notification service. | Operational Information | Active | |
| May 24 2012 06:29:27 CST | No sudden loss of generation greater than 450 MW occurred on 05/23/12. | Operational Information | Active | |
| May 24 2012 05:38:14 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 23 2012 21:31:21 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 23 2012 13:24:13 CST | ERCOT has postponed the deadline for the posting of the DAM Solution for Operating Day May 24, 2012 due to a long solution time. | Watch | Active | |
| May 23 2012 09:03:29 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 23 2012 07:49:35 CST | No sudden loss of generation greater than 450 MW occurred on 05/22/12. | Operational Information | Active | |
| May 22 2012 22:51:25 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 22 2012 07:45:57 CST | No sudden loss of generation greater than 450 MW occurred on 05/21/12. | Operational Information | Active | |
| May 21 2012 09:37:04 CST | No sudden loss of generation greater than 450 MW occurred on 05/20/12. | Operational Information | Active | |
| May 20 2012 07:16:43 CST | On 5/19/12, a sudden loss of generation occurred at 02:11 totaling 511 MW. Frequency declined to 59.905 HZ, ERCOT load was 28, 714 MW. | Operational Information | Active | |
| May 20 2012 03:46:18 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 19 2012 21:48:36 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 19 2012 11:46:48 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 19 2012 08:34:09 CST | No sudden loss of generation greater than 450 MW occurred on 05/18/12. | Operational Information | Active | |
| May 18 2012 07:26:39 CST | No sudden loss of generation greater than 450 MW occurred on 05/17/12. | Operational Information | Active | |
| May 18 2012 06:00:13 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 18 2012 04:03:43 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 17 2012 21:56:46 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 17 2012 14:35:21 CST | The Eagle Pass DC Tie (DC_S) has returned from outage and is available. | Operational Information | Active | |
| May 17 2012 06:42:51 CST | No sudden loss of generation greater than 450 MW occurred on 05/16/12. | Operational Information | Active | |
| May 17 2012 01:35:27 CST | ERCOT has cancelled the following notice: ERCOT is taking manual actions due to ELKTON/FORNEY outage. | Operational Information | Cancelled | |
| May 16 2012 21:03:34 CST | ERCOT has cancelled the following notice: ERCOT is deploying Non-Spin Reserve for XATK89 constraint. | Operational Information | Cancelled | |
| May 16 2012 18:57:47 CST | ERCOT is deploying Non-Spin Reserve for XATK89 constraint. | Operational Information | Active | |
| May 16 2012 15:01:16 CST | ERCOT is taking manual actions due to ELKTON/FORNEY outage. | Operational Information | Active | |
| May 16 2012 07:32:16 CST | No sudden loss of generation greater than 450 MW occurred on 05/15/12. | Operational Information | Active | |
| May 15 2012 07:17:04 CST | No sudden loss of generation greater than 450 MW occurred on 05/14/12. | Operational Information | Active | |
| May 14 2012 06:47:06 CST | No sudden loss of generation greater than 450 MW occurred on 05/13/12. | Operational Information | Active | |
| May 13 2012 09:09:29 CST | No sudden loss of generation greater than 450 MW occurred on 05/12/12. | Operational Information | Active | |
| May 13 2012 08:53:47 CST | Test Message on Notice Builder/Twitter: This is a test of the ERCOT notification service. | Operational Information | Active | |
| May 12 2012 05:31:35 CST | No sudden loss of generation greater than 450 MW occurred on 05/11/12. | Operational Information | Active | |
| May 11 2012 06:36:10 CST | No sudden loss of generation greater than 450 MW occurred on 05/10/12. | Operational Information | Active | |
| May 11 2012 05:54:26 CST | ERCOT is working from Primary Control Center. | Operational Information | Active | |
| May 11 2012 05:20:19 CST | ERCOT has cancelled the following notice: The Laredo VFT (LARDVFT) Laredo Tie, will be unavailable Tuesday 05/08/12 at 08:30 until Thursday 05/10/12 at 16:30 for Scheduled Maintenance. No power transactions will be available during this outage. | Operational Information | Cancelled | |
| May 11 2012 05:17:29 CST | ERCOT has cancelled the following notice: ERCOT is working out of the Alternate Contro center. Use OPX Bastrop numbers until further notice | Operational Information | Cancelled | |
| May 10 2012 17:43:39 CST | ERCOT is working out of the Alternate Contro center. Use OPX Bastrop numbers until further notice | Operational Information | Active | |
| May 10 2012 06:35:17 CST | On 5/9/12, a sudden loss of generation occurred at 10:07 totaling 759 MW. Frequency declined to 59.823 HZ, ERCOT load was 34, 732 MW. | Operational Information | Active | |
| May 09 2012 06:45:32 CST | No sudden loss of generation greater than 450 MW occurred on 05/08/12. | Operational Information | Active | |
| May 08 2012 07:20:49 CST | Date correction, on 5/7/12, a sudden loss of generation occurred at 17:50 totaling 516 MW. Frequency declined to 59.882 HZ, ERCOT load was 51, 152 MW. | Operational Information | Active | |
| May 08 2012 07:19:13 CST | ERCOT has cancelled the following notice: On 5/7/11, a sudden loss of generation occurred at 17:50 totaling 516 MW. Frequency declined to 59.882 HZ, ERCOT load was 51, 152 MW. | Operational Information | Cancelled | |
| May 08 2012 07:17:46 CST | On 5/7/11, a sudden loss of generation occurred at 17:50 totaling 516 MW. Frequency declined to 59.882 HZ, ERCOT load was 51, 152 MW. | Operational Information | Active | |
| May 07 2012 23:23:07 CST | The Laredo VFT (LARDVFT) Laredo Tie, will be unavailable Tuesday 05/08/12 at 08:30 until Thursday 05/10/12 at 16:30 for Scheduled Maintenance. No power transactions will be available during this outage. | Operational Information | Active | |
| May 07 2012 13:16:16 CST | ERCOT has cancelled the following notice: The Laredo VFT (LARDVFT) Laredo Tie, will be unavailable Tuesday 05/08/12 at 08:30 until Thursday 05/10/12 at 16:30 for Scheduled Maintenance. No power transactions will be available during this outage. | Operational Information | Cancelled | |
| May 07 2012 13:15:57 CST | ERCOT has cancelled the following notice: The laredovft DC Tie will be unavailable from 00:23 05/06/2012 through 18:00 05/08/2012 due to a forced outage. | Operational Information | Cancelled | |
| May 07 2012 05:22:53 CST | No sudden loss of generation greater than 450 MW occurred on 05/06/12. | Operational Information | Active | |
| May 06 2012 15:22:50 CST | DC Tie Outage: The laredovft DC Tie will be unavailable from 00:23 05/06/2012 through 18:00 05/08/2012 due to a forced outage. | Operational Information | Active | |
| May 06 2012 15:18:44 CST | ERCOT has cancelled the following notice: LAREDO VFT IS IN A FORCED OUTAGE WITH EXPECTED END TIME OF 05/08/2012 18:00. | Operational Information | Cancelled | |
| May 06 2012 15:18:43 CST | ERCOT has cancelled the following notice: LAREDO VFT IS IN A FORCED OUTAGE WITH EXPECTED END TIME OF 05/08/2012 18:00. | Operational Information | Cancelled | |
| May 06 2012 14:04:13 CST | LAREDO VFT IS IN A FORCED OUTAGE WITH EXPECTED END TIME OF 05/08/2012 18:00. | Operational Information | Active | |
| May 06 2012 07:05:17 CST | No sudden loss of generation greater than 450 MW occurred on 05/05/12. | Operational Information | Active | |
| May 06 2012 04:43:46 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 06 2012 00:22:26 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 05 2012 09:50:38 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 05 2012 06:49:00 CST | No sudden loss of generation greater than 450 MW occurred on 05/04/12. | Operational Information | Active | |
| May 05 2012 06:23:52 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 05 2012 04:59:53 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 04 2012 23:56:35 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 04 2012 15:26:17 CST | The Laredo VFT (LARDVFT) Laredo Tie, will be unavailable Tuesday 05/08/12 at 08:30 until Thursday 05/10/12 at 16:30 for Scheduled Maintenance. No power transactions will be available during this outage. | Operational Information | Active | |
| May 04 2012 05:57:52 CST | No sudden loss of generation greater than 450 MW occurred on 05/03/12. | Operational Information | Active | |
| May 03 2012 19:10:17 CST | ERCOT has cancelled the following notice: Austrop SPS T-181 taken out of service. | Operational Information | Cancelled | |
| May 03 2012 07:40:40 CST | No sudden loss of generation greater than 450 MW occurred on 05/02/12. | Operational Information | Active | |
| May 03 2012 07:37:22 CST | Austrop SPS T-181 taken out of service. | Operational Information | Active | |
| May 03 2012 01:55:58 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 02 2012 22:25:27 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Active | |
| May 02 2012 21:11:22 CST | ERCOT has cancelled the following notice: At 4:20 PM on 2nd May 2012, ERCOT will perform a site failover of its Energy Market Management Systems. During this time, market communications will be unavailable for about 45 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. | OCN | Cancelled | |
| May 02 2012 09:18:01 CST | ERCOT has cancelled the following notice: DC Tie Outage: The Eagle Pass DC Tie is unavailable thru 12/31/12 due to an Outage. | Operational Information | Cancelled | |
| May 02 2012 09:16:22 CST | DC Tie Outage: The Eagle Pass DC Tie is unavailable thru 12/31/12 due to a Forced Outage. | Operational Information | Active | |
| May 02 2012 07:36:59 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 02 2012 07:11:09 CST | No sudden loss of generation greater than 450 MW occurred on 05/01/12. | Operational Information | Active | |
| May 02 2012 05:23:23 CST | ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 02 2012 01:48:05 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 01 2012 21:15:30 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 01 2012 15:01:45 CST | DC Tie Outage: The Eagle Pass DC Tie is unavailable thru 12/31/12 due to an Outage. | Operational Information | Cancelled | |
| May 01 2012 14:41:49 CST | At 4:20 PM on 2nd May 2012, ERCOT will perform a site failover of its Energy Market Management Systems. During this time, market communications will be unavailable for about 45 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. | OCN | Active | |
| May 01 2012 13:39:55 CST | The Whirlwind SPS has been taken out of service | Operational Information | Active | |
| May 01 2012 13:27:13 CST | ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |
| May 01 2012 13:13:51 CST | ERCOT has cancelled the following notice: ERCOT is taking manual action for the Whirlwind SPS. | Operational Information | Cancelled | |
| May 01 2012 11:26:12 CST | Test Message on Notice Builder/Twitter: This is a test of the ERCOT notification service. | Operational Information | Active | |
| May 01 2012 11:25:46 CST | ERCOT has cancelled the following notice: This is a test of the ERCOT notification service. | Operational Information | Cancelled | |
| May 01 2012 11:25:06 CST | ERCOT has cancelled the following notice: This is a test of the ERCOT notification service. | Operational Information | Cancelled | |
| May 01 2012 11:22:28 CST | Test Message on Notice Builder/Twitter: This is a test of the ERCOT notification service. | Operational Information | Cancelled | |
| May 01 2012 09:49:11 CST | Test Message on Notice Builder/Twitter: This is a test of the ERCOT notification service. | Operational Information | Cancelled | |
| May 01 2012 07:29:22 CST | No sudden loss of generation greater than 450 MW occurred on 04/30/12. | Operational Information | Active | |
| May 01 2012 01:20:49 CST | ERCOT is taking manual action for the Whirlwind SPS. | Operational Information | Cancelled | |
| May 01 2012 00:58:57 CST | West-North Stability Limit: ERCOT is constraining for the West-North stability limit. | Operational Information | Cancelled | |