This section contains public market notifications required by protocols as well as other market messages ERCOT may post for market transparency. Notices are categorized by types and can be filtered by selecting the desired category. ERCOT began archiving public notices November 3, 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 |
