NOTICE DATE: September 24, 2020 

NOTICE TYPE: M-A092420-01 Outage - Retail/Wholesale 

SHORT DESCRIPTION: Unplanned system maintenance with impacted services

INTENDED AUDIENCE: ERCOT Market Participants 

DAYS AFFECTED: September 26, 2020 09:30 - 18:00; September 27, 2020 09:30 - 18:00 

LONG DESCRIPTION: ERCOT will be performing system maintenance of the ISM databases and applications on September 26 – 27, 2020. 

During the September 26, 2020 09:30 - 18:00; September 27, 2020 09:30 - 18:00 outage window, some services available through the Market Information System (MIS) will be unavailable, including the following:

• Report publishing to the ERCOT MIS
• Downloading of extracts and reports from the MIS and EWS
• Find ESIID and Find Transaction
• Market Data Transparency (MDT) Web Services
• Extract Subscriber
• ERCOT Market Information List (EMIL) Web Interface

Note that the outage start times may be delayed depending on the current system conditions.

ADDITIONAL INFORMATION: Reports will be rerun and reposted as applicable. The MIS Dashboards and ERCOT.com price displays will not be populated with data during the September 27, 2020 09:30 – 18:00 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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