NOTICE DATE: June 2, 2021

NOTICE TYPE: M-B060221-01 Outage - Retail/Wholesale

SHORT DESCRIPTION: Planned system maintenance with impacted services

INTENDED AUDIENCE: ERCOT Market Participants 

DAYS AFFECTED: June 3, 2021 17:00 – 19:00

LONG DESCRIPTION: ERCOT will be performing planned system maintenance of several databases and applications on June 3, 2021.

During the June 3, 2021 17:00 – 19:00 outage window, all services available through the Market Information System (MIS) will be unavailable, including the following:

• Market submissions and requests via External Web Services (EWS), Market Manager and Outage Scheduler
• Report publishing to the ERCOT MIS
• Downloading of extracts and reports from the MIS and EWS
• Net Dependable Capability and Reactive Capability (NDCRC)
• Congestion Revenue Right (CRR) Market User Interface
• The following ERCOT internet services:
• ERCOT Interconnection Services (GINR) – https://sa.ercot.com/ginr/
• Market Data Transparency (MDT) Web Services
• Extract Subscriber
• Find ESIID and Find Transaction

During this outage window, please use the following URLs to directly access the Market Manager, CRR Market User Interface, and Outage Scheduler: 

• https://mis.ercot.com/mmsui/mmsui/displayTradesLanding.action
• https://mis.ercot.com/mui-ercot-ihedge/
• https://mis.ercot.com/osrui/osrui/Summary.action

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 June 3, 2021 17:00 – 19:00 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].

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