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NOTICE DATE:  March 13, 2019

NOTICE TYPE:  M-A031319-01 Outage – Retail/Wholesale

SHORT DESCRIPTION:  Planned system maintenance with impacted services

INTENDED AUDIENCE:  ERCOT Market Participants

DAYS AFFECTED:  March 20, 2019 09:30 – 12:00, March 20, 2019 17:00 – 20:00, March 21, 2019 10:00 – 12:00, March 21, 2019 16:30 – 18:30

LONG DESCRIPTION:  ERCOT will be performing planned system maintenance of several databases and applications on March 20 – 21, 2019.

During the March 20, 2019 09:30 – 12:00 outage window, Market Participants may experience intermittent issues with the following services:

·         Find ESIID

During the March 20, 2019 17:00 – 20:00 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

·         Find ESIID and Find Transaction

·         Market Participant Identity Manager (MPIM)

·         Market Data Transparency (MDT) Web Services

·         Extract Subscriber

·         Service Requests

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

During the March 21, 2019 10:00 – 12:00 outage window, Market Participants may experience intermittent issues with the following services:

·         ERCOT.com

During the March 21, 2019 16:30 – 18:30 outage window, Market Participants may experience intermittent issues with the following services:

·         Market Participant Identity Manager (MPIM)

·         The following ERCOT internet services:

o   Texas Renewables – www.texasrenewables.com

o   Retail Testing Website - etod.ercot.com

o   ERCOT Interconnection Services (GINR) - https://sa.ercot.com/ginr/

·         Market Data Transparency (MDT) Web Services

·         Extract Subscriber

·         Net Dependable Capability and Reactive Capability (NDCRC)

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 March 20, 2019 17:00 – 20:00 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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sa

 



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