NOTICE DATE:  January 27, 2016

NOTICE TYPE:  M-A012216-02 Outage - Wholesale

SHORT DESCRIPTION:  Completion - Planned system maintenance with impacted services

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  January 27, 2016, 15:00 – 20:00

LONG DESCRIPTION: The ERCOT planned maintenance outage completed at approximately 18:45 January 27, 2016

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 an 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.

dg

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NOTICE DATE:  January 22, 2016

NOTICE TYPE:  M-A012216-01 Outage - Wholesale

SHORT DESCRIPTION:  Planned system maintenance with impacted services

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  January 27, 2016, 15:00 – 20:00

LONG DESCRIPTION: ERCOT will be performing planned system maintenance of several source databases and applications on January 27, 2016, within a maintenance window of 15:00 – 20:00. During this system maintenance, market submissions will be unavailable for approximately 45 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).

During the outage, please use the following URLs to directly access the Market Manager and Outage Scheduler: 

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

Note that the outage is scheduled to begin at approximately 15:00; 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.

ACTION REQUIRED:  Qualified Scheduling Entities (QSEs) with Resources will need to follow Emergency Base Points during the outage. QSEs and Transmission Service Providers (TSPs) will need to refrain from making submissions in Market Manager and Outage Scheduler during the outage period as the submissions will not be accepted.

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 an 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.

mm