NOTICE DATE:  November 18, 2008

NOTICE TYPE:  M-B111808-01  Operations

SHORT DESCRIPTION:  Implementation of the Willow Valley Special Protection Scheme (SPS)

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  November 18, 2008

LONG DESCRIPTION:  Oncor Electric Delivery has proposed installing an SPS at the Willow Valley station to protect against possible congestion in the area upon introduction of the Bull Creek Wind Plant.

The ERCOT ISO has approved this SPS, which is in-service effective November 18, 2008.  Further details of the Willow Valley SPS can be found in the “Special Protection Systems Information” section of the Planning and Operations Information secure website at the link below.

http://planning.ercot.com/login/login

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 e-mail at [log in to unmask].

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