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.)
| Date | Message | Type | Status |
|---|---|---|---|
| May 13 2019 10:10:34 CST | At 3:25 PM on 05/13/2019, 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 |
| May 13 2019 08:47:52 CST | The Daily RSASM for Monday May 13, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 13 2019 00:21:49 CST | No sudden loss of generation greater than 450 MW occurred on May 12, 2019. | Operational Information | Active |
| May 12 2019 08:58:39 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| May 12 2019 08:57:23 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| May 12 2019 08:53:31 CST | The Daily RSASM for Sunday May 12, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 12 2019 00:57:58 CST | No sudden loss of generation greater than 450 MW occurred on May 11, 2019. | Operational Information | Active |
| May 11 2019 22:14:45 CST | ERCOT has cancelled the following notice: The Railroad DC Tie will be unavailable from 08:00 05/10/2019 through 17:00 05/11/2019 due to a planned outage. | Operational Information | Cancelled |
| May 11 2019 14:14:01 CST | ERCOT has cancelled the following notice: The Railroad DC Tie will be unavailable from 08:00 05/10/2019 through 17:00 05/11/2019 due to a planned outage. | Operational Information | Cancelled |
| May 11 2019 08:48:36 CST | The Daily RSASM for Saturday May 11, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 11 2019 01:16:16 CST | No sudden loss of generation greater than 450 MW occurred on May 10, 2019. | Operational Information | Active |
| May 11 2019 01:00:35 CST | ERCOT will execute a SASM at 01:35 for operating day Saturday, MAY 11, 2019 for 2MW of REGUP for HE06 through 10 and HE16 through 18. | Operational Information | Active |
| May 10 2019 08:47:29 CST | The Daily RSASM for Friday May 10, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 10 2019 04:21:26 CST | ERCOT is working from the Primary Control Center until further notice, use the OPX number for Taylor. | Operational Information | Active |
| May 10 2019 04:20:35 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 |
| May 10 2019 00:01:02 CST | No sudden loss of generation greater than 450 MW occurred on May 9, 2019. | Operational Information | Active |
| May 09 2019 16:23:29 CST | ERCOT will be working from the alternate control center until further notice, use the OPX numbers for Bastrop. | Operational Information | Active |
| May 09 2019 08:48:06 CST | The Daily RSASM for Thursday May 9, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 09 2019 00:27:19 CST | No sudden loss of generation greater than 450 MW occurred on May 8, 2019. | Operational Information | Active |
| May 08 2019 08:47:12 CST | The Daily RSASM for Wednesday, May 8, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 08 2019 00:17:01 CST | No sudden loss of generation greater than 450 MW occurred on May 7, 2019. | Operational Information | Active |
| May 07 2019 14:14:01 CST | ERCOT has cancelled the following notice: The Railroad DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to one or more transmission security violations that would be fully or partially resolved by the curtailment of DC Tie Load. | DC Tie Curtailment Notice | Cancelled |
| May 07 2019 12:20:17 CST | DC Tie Curtailment Notice: The Railroad DC Tie is being curtailed, a DC Tie Curtailment Notice (DCTCN) is active due to one or more transmission security violations that would be fully or partially resolved by the curtailment of DC Tie Load. | DC Tie Curtailment Notice | Active |
| May 07 2019 08:50:16 CST | The Daily RSASM for Tuesday, May 7, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 07 2019 00:14:09 CST | No sudden loss of generation greater than 450 MW occurred on May 6, 2019. | Operational Information | Active |
| May 06 2019 13:21:48 CST | ERCOT has cancelled the following notice: The Eagle Pass 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 |
| May 06 2019 13:21:34 CST | ERCOT has cancelled the following notice: The The Eagle Pass DC Tie will be unavailable from 06:30 05/06/2019 through 13:00 05/06/2019 due to a forced outage. DC Tie will be unavailable from 06:30 05/06/2019 through 13:00 05/06/2019 due to a planned outage. | Operational Information | Cancelled |
| May 06 2019 10:49:42 CST | DC Tie Outage: The Railroad DC Tie will be unavailable from 08:00 05/10/2019 through 17:00 05/11/2019 due to a planned outage. | Operational Information | Active |
| May 06 2019 08:47:34 CST | The Daily RSASM for Monday, May 6, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 06 2019 06:42:23 CST | ERCOT has cancelled the following notice: The Eagle Pass DC Tie will be unavailable from 02:43 05/06/2019 through 10:00 05/06/2019 due to a forced outage. | Operational Information | Cancelled |
| May 06 2019 06:41:40 CST | DC Tie Outage: The The Eagle Pass DC Tie will be unavailable from 06:30 05/06/2019 through 13:00 05/06/2019 due to a forced outage. DC Tie will be unavailable from 06:30 05/06/2019 through 13:00 05/06/2019 due to a planned outage. | Operational Information | Active |
| May 06 2019 03:06:46 CST | DC Tie Curtailment Notice: The Eagle Pass 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 |
| May 06 2019 02:59:10 CST | DC Tie Outage: The Eagle Pass DC Tie will be unavailable from 02:43 05/06/2019 through 10:00 05/06/2019 due to a forced outage. | Operational Information | Active |
| May 06 2019 02:21:34 CST | No sudden loss of generation greater than 450 MW occurred on May 5, 2019. | Operational Information | Active |
| May 05 2019 18:31:43 CST | ERCOT has cancelled the following notice: ERCOT is issuing a Watch due to DRUC not completing by 1800 due to delay of the Day Ahead Market. | Watch | Cancelled |
| May 05 2019 18:31:39 CST | ERCOT has cancelled the following notice: At 16:52 ERCOT cancelled the Advisory for the Day Ahead Market timeline deviation. | Advisory | Cancelled |
| May 05 2019 17:36:16 CST | At 16:52 ERCOT cancelled the Advisory for the Day Ahead Market timeline deviation. | Advisory | Active |
| May 05 2019 17:04:58 CST | ERCOT is issuing a Watch due to DRUC not completing by 1800 due to delay of the Day Ahead Market. | Watch | Active |
| May 05 2019 13:25:38 CST | ERCOT has postponed the deadline for the posting of the DAM solution for Operating Day May 6th, 2019 due to an internal issue, which is under investigation. | Advisory | Active |
| May 05 2019 08:46:26 CST | The Daily RSASM for Sunday, May 5, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 05 2019 00:05:19 CST | No sudden loss of generation greater than 450 MW occurred on May 4, 2019. | Operational Information | Active |
| May 04 2019 08:46:41 CST | The Daily RSASM for Saturday, May 4, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 04 2019 03:15:56 CST | No sudden loss of generation greater than 450 MW occurred on May 3, 2019. | Operational Information | Active |
| May 03 2019 14:29:31 CST | DC Tie Outage: The Railroad DC Tie will be unavailable from 08:00 05/10/2019 through 17:00 05/11/2019 due to a planned outage. | Operational Information | Active |
| May 03 2019 08:46:27 CST | The Daily RSASM for Friday, May 3, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 03 2019 04:11:00 CST | ERCOT has cancelled the following notice: ERCOT will execute a SASM at 19:50 for operating day Wednesday, 5/01/2019 for 15 MW REGUP for HE 22, 23 and 24. | Operational Information | Cancelled |
| May 03 2019 00:10:55 CST | No sudden loss of generation greater than 450 MW occurred on May 2, 2019. | Operational Information | Active |
| May 02 2019 15:45:05 CST | No sudden loss of generation greater than 450 MW occurred on May 1, 2019. | Operational Information | Active |
| May 02 2019 09:26:51 CST | ERCOT has cancelled the following notice: ERCOT is taking manual action due to planned outages in the Fort Stockton area. Action taken to mitigate unsolved contingency SPIGSOL | Operational Information | Cancelled |
| May 02 2019 09:22:06 CST | ERCOT has cancelled the following notice: ERCOT is taking manual action due to planned outages in the Fort Stockton area. Action taken to mitigate unsolved contingency SPIGSOL | Operational Information | Cancelled |
| May 02 2019 09:17:57 CST | An OCN has been issued due to ERCOT modifying a Generic Transmission Constraint due to dynamic voltage stability issues that become more limiting than steady state voltage issues, under Transmission Outage conditions for the Panhandle Generic Transmission Constraint (GTC). | Operational Information | Active |
| May 02 2019 09:12:36 CST | ERCOT is taking manual action due to planned outages in the Fort Stockton area. Action taken to mitigate unsolved contingency SPIGSOL | Operational Information | Active |
| May 02 2019 08:46:50 CST | The Daily RSASM for Thursday, May 2, 2019 will not be occurring due to zero participating QSEs. | Operational Information | Active |
| May 02 2019 05:18:43 CST | No sudden loss of generation greater than 450 MW occurred on May 2, 2019. | Operational Information | Active |
| May 01 2019 19:29:04 CST | ERCOT will execute a SASM at 19:50 for operating day Wednesday, 5/01/2019 for 15 MW REGUP for HE 22, 23 and 24. | Operational Information | Active |
| May 01 2019 10:20:19 CST | ERCOT Responsive Reserve Has Been Recalled | Operational Information | Cancelled |
| May 01 2019 10:17:51 CST | ERCOT Responsive Reserve Has Been Deployed | Operational Information | Active |
| May 01 2019 08:51:44 CST | The Daily RSASM for Wednesday May 01, 2019 did not occur due to zero participating QSEs | Operational Information | Active |
| May 01 2019 00:06:23 CST | ERCOT Emergency Base Points are Disabled | Operational Information | Cancelled |
| May 01 2019 00:04:53 CST | On April 30, 2019, a sudden loss of generation occurred at 09:37 totaling 575 MW. Frequency declined to 59.866 Hz, ERCOT load was 42, 280 MW. Another sudden loss of generation occurred at 21:11 totaling 602 MW. Frequency declined to 59.870 Hz, ERCOT load was 48, 561 MW. | Operational Information | Active |
| May 01 2019 00:02:23 CST | ERCOT Emergency Base Points are Enabled | Operational Information | Active |