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NOTICE DATE: July 18, 2019

NOTICE TYPE: M-A071819-01 Outage - Wholesale

SHORT DESCRIPTION: Planned system maintenance with impacted services

INTENDED AUDIENCE: ERCOT Market Participants

DAYS AFFECTED: July 22, 2019, 15:30 – 17:30

LONG DESCRIPTION: ERCOT will be performing planned system maintenance of several source databases and applications on July 22, 2019, within a maintenance window of 15:30 – 17:30. During this system maintenance, market submissions will be unavailable for approximately 30 minutes and real-time communications will be unavailable for approximately five minutes. All systems should re-establish communications automatically.

During the maintenance period, Market Participants may experience intermittent issues with the following services:

* Market submissions and requests via WebServices, Market Manager and Outage Scheduler 

* Report publishing to the ERCOT Market Information System (MIS)

* Downloading of extracts and reports from MIS and WebServices

* Net Dependable Capability and Reactive Capability (NDCRC)

* Market Participant Identity Mangement (MPIM).

Note that the outage is scheduled to begin at approximately 15:30; however, this start time may be delayed depending on the current system conditions. A Hotline call will be made to Qualified Scheduling Entities (QSEs) with Resources and Transmission Operators (TOs) to announce the start of the outage, and another Hotline call will be made at the completion of the outage. 

ADDITIONAL INFORMATION: Note that the Market Information System (MIS) and Current Day Reports (CDR) system will be impacted. Reports will be rerun and reposted as applicable.  The MIS Dashboards and ERCOT.com price displays will not be populated with data during this timeframe.

CONTACT: If you have any questions, please contact your ERCOT Account Manager. You may also call the general ERCOT Client Services phone number at (512) 248-3900 or contact ERCOT Client Services via email at [log in to unmask].

If you are receiving email from a public ERCOT distribution list that you no longer wish to receive, please follow this link in order to unsubscribe from this list: http://lists.ercot.com.

 

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