Operations Messages - January 2012

This section contains important messages from the ERCOT Control Room. Refresh this screen to see current operation messages. (Subscribe to Operations Messages Subscribe using any RSS Reader RSS feed.)

Aug 2011 Sep 2011 Oct 2011 Nov 2011 Dec 2011 Jan 2012
Date Message Type Status
Jan 31 2012 16:59:43 CST ERCOT has cancelled the following notice: The Railroad HVDC Tie (DC_Road) Will be out of service Saturday 01/28/12 from 009:00 until 13:00 for planned maintenace. Operational Information Cancelled
Jan 31 2012 09:00:40 CST ERCOT has cancelled the following notice: ERCOT is taking manual action for DTRSENT5 contingency due to a planned outage. Operational Information Cancelled
Jan 31 2012 08:03:25 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 31 2012 05:43:04 CST DAM OD 2/1/2012 will be using a Valley Import limit value of 400MW for all hours. OCN Active
Jan 31 2012 05:42:59 CST No sudden loss of generation greater than 450 MW occurred on 01/30/12 Operational Information Active
Jan 31 2012 05:39:56 CST DAM OD 2/1/2012 will be using West to North (W_TO_N) generic constraint limits of 2143 MW for HE 1-7, 9-12, 23, 24 and 1568 MW for HE 8, 13-22. OCN Active
Jan 31 2012 05:05:03 CST ERCOT is taking manual action for DTRSENT5 contingency due to a planned outage. Operational Information Active
Jan 31 2012 05:03:14 CST ERCOT has cancelled the following notice: ERCOT is taking manual actions for SSACSUN8 constraint. Operational Information Cancelled
Jan 30 2012 21:16:57 CST ERCOT is taking manual actions for SSACSUN8 constraint. Operational Information Active
Jan 30 2012 07:52:15 CST No sudden loss of generation greater than 450 MW occurred on 01/29/12 Operational Information Active
Jan 30 2012 06:02:42 CST DAM OD 01/31/2012 will be using a Valley Import limit value of 400MW for all hours. OCN Active
Jan 30 2012 05:51:17 CST DAM OD 01/31/2012 will be using West to North (W_TO_N) generic constraint limits of 2144 MW for HE 1-6, 23-24 and 1569 MW for HE 7-22. OCN Active
Jan 29 2012 19:55:41 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 29 2012 08:10:51 CST No sudden loss of generation greater than 450 MW occurred on 01/28/12 Operational Information Active
Jan 29 2012 06:36:23 CST Corection: DAM OD 01/30/2012 will be using a Valley Import limit value of 1100 MW for hours 1-7 and 400MW for hours 8-24. OCN Active
Jan 29 2012 05:58:24 CST DAM OD 01/30/2012 will be using a Valley Import limit value of 400MW for all hours. OCN Active
Jan 29 2012 05:33:04 CST DAM OD 01/30/2012 will be using West to North (W_TO_N) generic constraint limits of 2144 MW for HE 1-4, 23, 24 and 1569 MW for HE 5-22. OCN Active
Jan 28 2012 07:00:15 CST No sudden loss of generation greater than 450 MW occurred on 01/27/12 Operational Information Active
Jan 28 2012 05:34:36 CST DAM OD 01/29/2012 will be using West to North (W_TO_N) generic constraint limits of 1569 MW for HE 1-14, 19-23 and 2144 MW for HE 15-18, 24. OCN Active
Jan 27 2012 13:29:51 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 27 2012 08:46:20 CST The Railroad HVDC Tie (DC_Road) Will be out of service Saturday 01/28/12 from 009:00 until 13:00 for planned maintenace. Operational Information Active
Jan 27 2012 06:32:54 CST No sudden loss of generation greater than 450 MW occurred on 01/26/12. Operational Information Active
Jan 27 2012 04:10:01 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 26 2012 08:57:08 CST ERCOT has cancelled the following notice: The Barney Davis SPS has been taken out of service. Operational Information Cancelled
Jan 26 2012 08:42:46 CST On 01/25/12, a sudden loss of generation occurred at 01:13 totaling 478 MW. Frequency declined to 59.898 HZ, ERCOT load was 25, 949 MW. Operational Information Active
Jan 26 2012 05:55:19 CST ERCOT has cancelled the following notice: The North DC Tie will be unavailable from 01/24/2012 through 01/24/2012 due to a planned outage. Operational Information Cancelled
Jan 26 2012 05:54:40 CST ERCOT has cancelled the following notice: The North HVDC Tie (DCTM) Will be out of service Tuesday 01/24/12 from 07:00 until 17:00 for planned maintenace. Operational Information Cancelled
Jan 26 2012 05:41:41 CST DAM OD 01/27/2012 will be using West to North (W_TO_N) generic constraint limits of 2142 MW for HE 1-5, 23-24 and 1568 MW for HE 6-22. OCN Active
Jan 25 2012 23:19:15 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
Jan 25 2012 17:44:49 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
Jan 25 2012 16:35:52 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 25 2012 12:41:46 CST ERCOT has cancelled the following notice: Possible Geomagnetic Disturbance with K-indices of 6 to 9, begining January 24, 2012 starting 0600, give or take about 6 hours for a duration of 24 to 36 hours. Operational Information Cancelled
Jan 25 2012 11:05:07 CST The Barney Davis SPS has been taken out of service. Operational Information Active
Jan 25 2012 06:48:53 CST No sudden loss of generation greater than 450 MW occurred on 01/24/12. Operational Information Active
Jan 25 2012 05:10:18 CST DAM OD 01/26/2012 will be using West to North (W_TO_N) generic constraint limits of 2132 MW for HE 1-6, 24 and 1560 MW for HE 7-23. OCN Active
Jan 25 2012 03:16:39 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 24 2012 09:03:50 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 24 2012 07:28:35 CST On 01/23/12, a sudden loss of generation occurred at 23:47 totaling 620 MW. Frequency declined to 59.822 HZ, ERCOT load was 27, 900 MW. Operational Information Active
Jan 24 2012 05:26:31 CST DAM OD 01/25/2012 will be using West to North (W_TO_N) generic constraint limits of 2134 MW for HE 1-6, 24 and 1562 MW for HE 7-23. OCN Active
Jan 23 2012 20:39:41 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 23 2012 18:11:15 CST Possible Geomagnetic Disturbance with K-indices of 6 to 9, begining January 24, 2012 starting 0600, give or take about 6 hours for a duration of 24 to 36 hours. Operational Information Active
Jan 23 2012 06:50:12 CST No sudden loss of generation greater than 450 MW occurred on 01/22/12. Operational Information Active
Jan 23 2012 05:43:30 CST DAM OD 01/24/2012 will be using West to North (W_TO_N) generic constraint limits of 2133 MW for HE 1-6, 16, 23-24 and 1561 MW for HE 7-15, 17-22. OCN Active
Jan 22 2012 18:06:00 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 22 2012 08:12:42 CST On 01/21/12, a sudden loss of generation occurred at 13:34 totaling 584 MW. Frequency declined to 59.752 HZ, ERCOT load was 31, 275 MW. Operational Information Active
Jan 22 2012 05:19:18 CST DAM OD 01/23/2012 will be using West to North (W_TO_N) generic constraint limits of 2133 MW for HE 1-6, 16, 17, 23, 24 and 1561 MW for HE 7-15, 18-22. OCN Active
Jan 21 2012 18:43:41 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 21 2012 14:00:51 CST ERCOT has cancelled the following notice: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Cancelled
Jan 21 2012 08:46:59 CST Physical Responsive Capability < 3000 MW: ERCOT is issuing an Advisory due to Physical Responsive Capability being below 3000 MW Advisory Active
Jan 21 2012 07:35:44 CST No sudden loss of generation greater than 450 MW occurred on 01/20/12. Operational Information Active
Jan 21 2012 05:28:28 CST DAM OD 01/22/2012 will be using West to North (W_TO_N) generic constraint limit of 2133 MW for hours 1-18, 23, 24 and 1561 MW for hours 19-22. OCN Active
Jan 21 2012 05:09:47 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 20 2012 20:58:22 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 20 2012 09:22:10 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 20 2012 07:27:40 CST No sudden loss of generation greater than 450 MW occurred on 01/19/12. Operational Information Active
Jan 20 2012 06:19:47 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 20 2012 05:27:22 CST DAM OD 01/21/2012 will be using West to North (W_TO_N) generic constraint limit of 2133 MW for hours 1-9, 12-18, and 22-24 and 1561 MW for hours 10, 11, and 19-21. OCN Active
Jan 19 2012 08:41:35 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 19 2012 07:27:02 CST No sudden loss of generation greater than 450 MW occurred on 01/18/12. Operational Information Active
Jan 19 2012 05:27:03 CST DAM OD 01/20/2012 will be using West to North (W_TO_N) generic constraint limit of 2135 MW for hours 1-6, 23-24, and 1563 MW for hours 7-22. OCN Active
Jan 18 2012 21:30:25 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 18 2012 14:04:55 CST The North HVDC Tie (DCTM) Will be out of service Tuesday 01/24/12 from 07:00 until 17:00 for planned maintenace. Operational Information Active
Jan 18 2012 13:49:28 CST DC Tie Outage: The North DC Tie will be unavailable from 01/24/2012 through 01/24/2012 due to a planned outage. Operational Information Active
Jan 18 2012 07:49:35 CST No sudden loss of generation greater than 450 MW occurred on 01/17/12. Operational Information Active
Jan 18 2012 05:01:57 CST DAM OD 01/19/2012 will be using West to North (W_TO_N) generic constraint limit of 2135 MW for hours 1-5 , 24 , 1563 MW for hour 6, 1463 mw for hours 7-22, 1868 mw hour 23. OCN Active
Jan 17 2012 19:43:38 CST ERCOT has cancelled the following notice: ERCOT issued Advisory due to PRC below 3000 MW. Advisory Cancelled
Jan 17 2012 18:53:19 CST ERCOT issued Advisory due to PRC below 3000 MW. Advisory Active
Jan 17 2012 10:42:54 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 17 2012 07:46:55 CST No sudden loss of generation greater than 450 MW occurred on 01/16/12. Operational Information Active
Jan 17 2012 06:40:43 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 17 2012 05:03:12 CST DAM OD 01/18/2012 will be using West to North (W_TO_N) generic constraint limit of 2129 MW for hours 1-4, and 1558 MW for hours 5-24. OCN Active
Jan 17 2012 03:09:46 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 16 2012 19:26:17 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 16 2012 15:41:16 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 16 2012 06:34:23 CST On 1/15/12, a sudden loss of generation occurred at 14:05 totaling 455 MW. Frequency declined to 59.851 HZ, ERCOT load was 29, 659 MW. Operational Information Active
Jan 16 2012 04:57:09 CST DAM OD 01/17/2012 will be using West to North (W_TO_N) generic constraint limit of 2279 MW for hours 1-5, and 1915 MW for hours 6-24. OCN Active
Jan 15 2012 07:23:15 CST No sudden loss of generation greater than 450 MW occurred on 01/14/12. Operational Information Active
Jan 15 2012 05:34:07 CST DAM OD 01/16/2012 will be using West to North (W_TO_N) generic constraint limit of 2279 MW for hours 1-6, 24 and 1915 MW for hours 7-23. OCN Active
Jan 14 2012 22:19:39 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 14 2012 08:10:28 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 14 2012 07:48:37 CST ERCOT has cancelled the following notice: ERCOT is taking manual action for SLOBSAN5 contingency due to a planned outage. Operational Information Cancelled
Jan 14 2012 06:46:39 CST ERCOT is taking manual action for SLOBSAN5 contingency due to a planned outage. Operational Information Active
Jan 14 2012 05:43:07 CST DAM OD 01/15/2012 will be using West to North (W_TO_N) generic constraint limit of 2279 MW for hours 1-4, 12-18, 23, 24 and 1915 MW for hours 5-11, 19-22. OCN Active
Jan 14 2012 03:54:49 CST ERCOT has cancelled the following notice: At 02:41 ERCOT Taking manual Action for the North to Houston Interface Operational Information Cancelled
Jan 14 2012 03:53:06 CST ERCOT has cancelled the following notice: ERCOT is constraining for the North-Houston voltage stability limit. Operational Information Cancelled
Jan 14 2012 03:47:26 CST At 02:41 ERCOT Taking manual Action for the North to Houston Interface Operational Information Active
Jan 14 2012 03:42:44 CST No sudden loss of generation greater than 450 MW occurred on 01/13/12. Operational Information Active
Jan 14 2012 03:42:42 CST ERCOT has cancelled the following notice: ERCOT is deploying non-spin reserve for north-houston interfaceconstraint. Operational Information Cancelled
Jan 14 2012 03:41:54 CST ERCOT has cancelled the following notice: ERCOT IS ISSUING A WATCH FOR THE NORTH-HOUSTON INTERFACE. Watch Cancelled
Jan 14 2012 03:28:39 CST ERCOT is deploying non-spin reserve for north-houston interfaceconstraint. Operational Information Active
Jan 14 2012 03:24:21 CST ERCOT IS ISSUING A WATCH FOR THE NORTH-HOUSTON INTERFACE. Watch Active
Jan 14 2012 03:21:34 CST ERCOT has cancelled the following notice: ERCOT is constraining for the North-Houston voltage stability limit. Operational Information Cancelled
Jan 14 2012 03:16:13 CST North-Houston Voltage Stability Limit: ERCOT is constraining for the North-Houston voltage stability limit. Operational Information Active
Jan 14 2012 02:28:49 CST North-Houston Voltage Stability Limit: ERCOT is constraining for the North-Houston voltage stability limit. Operational Information Active
Jan 14 2012 00:46:02 CST ERCOT has cancelled the following notice: Benbrook SPS has been taken out of Service Operational Information Cancelled
Jan 14 2012 00:44:22 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 13 2012 07:15:51 CST No sudden loss of generation greater than 450 MW occurred on 01/12/12. Operational Information Active
Jan 13 2012 05:35:55 CST DAM OD 01/14/2012 will be using West to North (W_TO_N) generic constraint limit of 1917 MW for hours 1-14, 19-24 and 2280 MW for hours 15-18. OCN Active
Jan 13 2012 04:53:36 CST ERCOT has cancelled the following notice: ERCOT is working from the Alternate control center. Operational Information Cancelled
Jan 13 2012 04:52:53 CST ERCOT is working from the Alternate control center. Operational Information Cancelled
Jan 12 2012 16:29:18 CST ERCOT has cancelled the following notice: The Barney Davis SPS is out of Service Operational Information Cancelled
Jan 12 2012 15:11:02 CST DAM is complete. DRUC will start at 15:55. Operational Information Active
Jan 12 2012 07:02:10 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 12 2012 06:12:51 CST No sudden loss of generation greater than 450 MW occurred on 01/11/12. Operational Information Active
Jan 12 2012 06:06:26 CST DAM OD 01/13/2012 will be using West to North (W_TO_N) generic constraint limit of 1913 MW for hours 1-24. OCN Active
Jan 11 2012 13:43:23 CST Benbrook SPS has been taken out of Service Operational Information Active
Jan 11 2012 06:28:29 CST No sudden loss of generation greater than 450 MW occurred on 01/10/12. Operational Information Active
Jan 11 2012 05:39:14 CST DAM OD 01/12/2012 will be using West to North (W_TO_N) generic constraint limit of 2277 MW for hours 1-5 and 1914 MW for hours 6-24. OCN Active
Jan 11 2012 05:26:11 CST The Barney Davis SPS is out of Service Operational Information Active
Jan 10 2012 22:23:15 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 10 2012 17:29:13 CST No sudden loss of generation greater than 450 MW occurred on 01/09/12. Operational Information Active
Jan 10 2012 13:09:07 CST ERCOT has cancelled the following notice: The Elkton SPS has been taken out of service. Operational Information Cancelled
Jan 10 2012 08:13:49 CST The Elkton SPS has been taken out of service. Operational Information Active
Jan 10 2012 05:31:12 CST DAM OD 01/11/2012 will be using West to North (W_TO_N) generic constraint limit of 2277 MW for hours 1-4, 24 and 1914 MW for hours 5-23. OCN Active
Jan 09 2012 14:24:06 CST ERCOT has completed a price analysis on SCED OD 1-7-2012 and identified a need for price correction. Several settlement points at 01:15 need to be corrected due to MMS system issues. Complete price correction data will be posted on Market Information System by 4pm on 01-09-2012. Advisory Active
Jan 09 2012 08:44:54 CST No sudden loss of generation greater than 450 MW occurred on 01/08/12. Operational Information Active
Jan 09 2012 08:38:55 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 09 2012 05:21:04 CST DAM OD 01/10/2012 will be using West to North (W_TO_N) generic constraint limit of 2271 MW for hours 1-6 and 1908 MW for hours 7-24. OCN Active
Jan 08 2012 22:50:54 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 08 2012 07:02:54 CST No sudden loss of generation greater than 450 MW occurred on 01/07/12. Operational Information Active
Jan 08 2012 05:28:40 CST DAM OD 01/09/2012 will be using West to North (W_TO_N) generic constraint limit of 2271 MW for hours 1-6 and 1908 MW for hours 7-24. OCN Active
Jan 07 2012 13:07:38 CST Test Message on Notice Builder/Twitter: This is a test of the ERCOT notification service. Operational Information Active
Jan 07 2012 07:07:49 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 07 2012 06:38:55 CST No sudden loss of generation greater than 450 MW occurred on 01/06/12. Operational Information Active
Jan 07 2012 05:31:24 CST DAM OD 01/08/2012 will be using West to North (W_TO_N) generic constraint limit of 2115 MW for hours 1-18, 1908 MW for hours 19-22, and 2271 MW for hours 23-24. OCN Active
Jan 06 2012 21:50:59 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 06 2012 17:37:44 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 06 2012 12:22:24 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 06 2012 10:53:08 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 06 2012 07:14:32 CST No sudden loss of generation greater than 450 MW occurred on 01/05/12. Operational Information Active
Jan 06 2012 05:34:26 CST DAM OD 01/07/2012 will be using West to North (W_TO_N) generic constraint limit of 2274 MW for hours 1-10, 13-18, 23, 24 and 1912 MW for hours 11-12, 19-22. OCN Active
Jan 05 2012 21:40:30 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 05 2012 08:01:37 CST ERCOT has cancelled the following notice: ERCOT issued an Advisory due to Physical Responsive Capability falling below 3000mws. Advisory Cancelled
Jan 05 2012 07:29:00 CST ERCOT issued an Advisory due to Physical Responsive Capability falling below 3000mws. Advisory Active
Jan 05 2012 07:27:05 CST No sudden loss of generation greater than 450 MW occurred on 01/04/12. Operational Information Active
Jan 05 2012 04:57:47 CST DAM OD 01/06/2012 will be using West to North (W_TO_N) generic constraint limit of 2118 MW for hours 1-5, 1550 MW for hours 6-14, 18-20, 2118 mw 15-17, 1911 mw 21-22, 2274 mw 23-24 Operational Information Active
Jan 04 2012 16:49:40 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 04 2012 08:06:32 CST No sudden loss of generation greater than 450 MW occurred on 01/03/12. Operational Information Active
Jan 04 2012 07:06:48 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 04 2012 05:46:17 CST DAM OD 01/05/2012 will be using West to North (W_TO_N) generic constraint limit of 2127 MW for hours 1-5, 24, and 1557 MW for hours 6-23. OCN Active
Jan 04 2012 00:46:55 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 03 2012 08:21:54 CST Eagle Pass DC-tie is unavailable from 12/14/2011 until 03/10/2012 23:00 due to forced outage. Operational Information Active
Jan 03 2012 07:32:43 CST No sudden loss of generation greater than 450 MW occurred on 01/02/12. Operational Information Active
Jan 03 2012 05:28:34 CST DAM OD 01/04/2012 will be using West to North (W_TO_N) generic constraint limit of 2127 MW for hours 1-4, and 1557 MW for hours 5-24. OCN Active
Jan 03 2012 01:59:53 CST West-North Stability Limit: ERCOT is constraining for the West-North stability limit. Operational Information Active
Jan 02 2012 07:40:51 CST No sudden loss of generation greater than 450 MW occurred on 01/01/12. Operational Information Active
Jan 02 2012 05:35:50 CST DAM OD 01/03/2012 will be using West to North (W_TO_N) generic constraint limit of 1557 MW for hours 1-24. OCN Active
Jan 01 2012 06:50:57 CST No sudden loss of generation greater than 450 MW occurred on 12/31/11. Operational Information Active
Jan 01 2012 05:11:29 CST ERCOT has cancelled the following notice: ERCOT is constraining for the West-North stability limit. Operational Information Cancelled
Jan 01 2012 04:56:26 CST DAM OD 01/02/2012 will be using West to North (W_TO_N) generic constraint limit of 2127 MW for hours 1-3, 14-17 and 1557 MW for hours 4-13, 18-24. OCN Active