NOTICE DATE:  August 28, 2013

NOTICE TYPE:  M-D082813-01 SCR

SHORT DESCRIPTION:  Implementation details for SCR770, Revision to Outage Scheduler for Maintenance Outage Level Designation

INTENDED AUDIENCE:  QSEs and TSPs

DAYS AFFECTED:  September 23 - 27, 2013

LONG DESCRIPTION:  Between September 23 - 27, 2013, ERCOT will implement System Change Request (SCR) 770, Revision to Outage Scheduler for Maintenance Outage Level Designation, which was approved by the ERCOT Board on May 15, 2012.

Currently, the Outage Scheduler system automatically determines the level for each Maintenance Outage based on the date the outage request is submitted and the Planned Start of the outage.  Levels (Outage Types) are determined as follows:

* Maintenance Level 1 - The Planned Start is within 24 hours from the outage request submission

* Maintenance Level 2 - The Planned Start is between 25 hours and 7 days from the outage request

* Maintenance Level 3 - The Planned Start is between 8 days and 30 days from the outage request

Upon implementation of SCR770, QSEs and TSPs will need to provide the requested Planned Start date and the level (Outage Type) for each Maintenance Outage.  The level will no longer be automatically determined.

ADDITIONAL INFORMATION:  Pursuant to Protocol Section 21.6, Nodal Protocol Revision Implementation, ERCOT is required to provide notice as soon as practicable, but no later than ten days prior to implementation.

SCR770 and associated documents can be found on the ERCOT website, under Market Rules, at http://www.ercot.com/mktrules/issues/scr/750-774/index

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]<mailto:[log in to unmask]>.

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