Public Notices

    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.

    Jul 2018 Aug 2018 Sep 2018 Oct 2018 Nov 2018 Dec 2018
    Date Message Type Status
    Dec 14 2018 08:47:18 CST The Daily RSASM for Friday, December 14, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Dec 14 2018 01:54:38 CST No sudden loss of generation greater than 450 MW occurred on December 13, 2018. Operational Information Active
    Dec 13 2018 08:48:20 CST The Daily RSASM for Thursday, December 13, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Dec 13 2018 01:39:03 CST No sudden loss of generation greater than 450 MW occurred on December 12, 2018. Operational Information Active
    Dec 12 2018 14:45:38 CST ERCOT has cancelled the following notice: The Laredo (DC_L) DC Tie will be unavailable from 02:20 12/10/2018 through 17:00 12/14/2018 due to a forced outage. Operational Information Cancelled
    Dec 12 2018 08:48:49 CST The Daily RSASM for Wednesday, December 12, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Dec 12 2018 00:42:51 CST No sudden loss of generation greater than 450 MW occurred on December 11, 2018. Operational Information Active
    Dec 11 2018 08:47:47 CST The Daily RSASM for Tuesday, December 11, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Dec 11 2018 00:33:50 CST No sudden loss of generation greater than 450 MW occurred on December 10, 2018. Operational Information Active
    Dec 11 2018 00:20:23 CST ERCOT has cancelled the following notice: The Railroad DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage. DC Tie Curtailment Notice Cancelled
    Dec 11 2018 00:05:31 CST ERCOT has cancelled the following notice: The Laredo (DC_L) DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage. DC Tie Curtailment Notice Cancelled
    Dec 11 2018 00:01:33 CST DC Tie Curtailment Notice: The Railroad DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage. DC Tie Curtailment Notice Active
    Dec 10 2018 10:54:26 CST ERCOT has cancelled the following notice: The Laredo DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage. DC Tie Curtailment Notice Cancelled
    Dec 10 2018 10:54:03 CST ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 02:32 12/10/2018 through 12:00 12/10/2018 due to a forced outage. Operational Information Cancelled
    Dec 10 2018 10:53:10 CST DC Tie Curtailment Notice: The Laredo (DC_L) DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage. DC Tie Curtailment Notice Active
    Dec 10 2018 10:51:46 CST DC Tie Outage: The Laredo (DC_L) DC Tie will be unavailable from 02:20 12/10/2018 through 17:00 12/14/2018 due to a forced outage. Operational Information Active
    Dec 10 2018 08:49:16 CST The Daily RSASM for Monday, December 10, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Dec 10 2018 02:58:55 CST DC Tie Curtailment Notice: The Laredo DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage. DC Tie Curtailment Notice Active
    Dec 10 2018 02:58:02 CST DC Tie Outage: The Laredo DC Tie will be unavailable from 02:32 12/10/2018 through 12:00 12/10/2018 due to a forced outage. Operational Information Active
    Dec 10 2018 00:03:01 CST No sudden loss of generation greater than 450 MW occurred on December 09, 2018. Operational Information Active
    Dec 09 2018 12:55:33 CST ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 02:10 12/09/2018 through 16:00 12/09/2018 due to a forced outage. Operational Information Cancelled
    Dec 09 2018 12:55:22 CST ERCOT has cancelled the following notice: The Laredo DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage. DC Tie Curtailment Notice Cancelled
    Dec 09 2018 12:28:00 CST ERCOT has cancelled the following notice: The Eskota Sw RAS has been taken out of service/removed from RTCA. Operational Information Cancelled
    Dec 09 2018 12:27:50 CST ERCOT has cancelled the following notice: The Eskota Sw RAS has been taken out of service/removed from RTCA. Operational Information Cancelled
    Dec 09 2018 08:44:51 CST The Daily RSASM for Sunday, December 9, 2018 will not be occurring due to zero participating QSEs Operational Information Active
    Dec 09 2018 03:07:45 CST DC Tie Outage: The Laredo DC Tie will be unavailable from 02:10 12/09/2018 through 16:00 12/09/2018 due to a forced outage. Operational Information Active
    Dec 09 2018 03:06:31 CST ERCOT has cancelled the following notice: The Laredo DC Tie will be unavailable from 02:10 12/09/2018 through 23:59 12/09/2018 due to a forced outage. Operational Information Cancelled
    Dec 09 2018 03:05:28 CST DC Tie Curtailment Notice: The Laredo DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to a planned or unplanned outage. DC Tie Curtailment Notice Active
    Dec 09 2018 02:33:09 CST DC Tie Outage: The Laredo DC Tie will be unavailable from 02:10 12/09/2018 through 23:59 12/09/2018 due to a forced outage. Operational Information Active
    Dec 09 2018 00:27:10 CST No sudden loss of generation greater than 450 MW occurred on December 08, 2018. Operational Information Active
    Dec 08 2018 09:13:27 CST ERCOT has cancelled the following notice: UPDATE, new return date: The East DC Tie will be unavailable from 21:10 11/16/2018 through 16:00 12/10/2018 due to a forced outage. Operational Information Cancelled
    Dec 08 2018 09:12:19 CST DC Tie Outage: The East DC Tie will be unavailable from 21:10 11/16/2018 through 16:00 12/14/2018 due to a forced outage. Operational Information Active
    Dec 08 2018 08:47:14 CST The Daily RSASM for Saturday, December 8, 2018 will not be occurring due to zero participating QSEs Operational Information Active
    Dec 08 2018 00:30:56 CST No sudden loss of generation greater than 450 MW occurred on December 07, 2018. Operational Information Active
    Dec 07 2018 10:52:06 CST The Eskota Sw RAS has been taken out of service/removed from RTCA. Operational Information Active
    Dec 07 2018 08:45:17 CST The Daily RSASM for Friday, December 7, 2018 will not be occurring due to zero participating QSEs Operational Information Active
    Dec 07 2018 04:39:04 CST Ercot working from Primary Control Center. Use OPX numbers for Taylor. Operational Information Active
    Dec 07 2018 00:00:16 CST No sudden loss of generation greater than 450 MW occurred on December 06, 2018. Operational Information Active
    Dec 06 2018 15:13:12 CST At 14:23 on 12/06/2018 the Eagle Pass DC Tie outage has ended and is back in service. Operational Information Active
    Dec 06 2018 08:45:11 CST The Daily RSASM for Thursday, December 6, 2018 will not be occurring due to zero participating QSEs Operational Information Active
    Dec 06 2018 00:00:11 CST No sudden loss of generation greater than 450 MW occurred on December 05, 2018. Operational Information Active
    Dec 05 2018 08:46:20 CST The Daily RSASM for Wednesday, December 5, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Dec 05 2018 00:01:41 CST No sudden loss of generation greater than 450 MW occurred on December 04, 2018. Operational Information Active
    Dec 04 2018 08:46:18 CST The Daily RSASM for Tuesday, December 4, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Dec 04 2018 00:00:10 CST No sudden loss of generation greater than 450 MW occurred on December 03, 2018. Operational Information Active
    Dec 03 2018 16:26:43 CST ERCOT has cancelled the following notice: At 3:25 PM on 12/03/2018, 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 Cancelled
    Dec 03 2018 16:03:38 CST ERCOT Emergency Base Points are Disabled Operational Information Cancelled
    Dec 03 2018 15:42:22 CST ERCOT Emergency Base Points are Enabled Operational Information Active
    Dec 03 2018 12:07:26 CST At 3:25 PM on 12/03/2018, 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
    Dec 03 2018 08:52:49 CST The Daily RSASM for Monday, December 3, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Dec 03 2018 00:25:13 CST On 12/02/2018 a sudden loss of generation occurred at 00:34 totaling 483 MW. Frequency declined to 59.911 Hz, ERCOT load was 30, 227 MW. Operational Information Active
    Dec 02 2018 16:51:51 CST 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
    Dec 02 2018 08:47:04 CST The Daily RSASM for Sunday, December 2, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Dec 02 2018 00:01:03 CST No sudden loss of generation greater than 450 MW occurred on December 01, 2018. Operational Information Active
    Dec 01 2018 16:21:04 CST ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. Operational Information Active
    Dec 01 2018 08:48:06 CST The Daily RSASM for Saturday, December 1, 2018 will not be occurring due to zero participating QSEs. Operational Information Active
    Dec 01 2018 00:39:36 CST No sudden loss of generation greater than 450 MW occurred on November 30, 2018. Operational Information Active