NOTICE DATE:  June 26, 2008

NOTICE TYPE:  W-A062408-03 PRR/SCR

CLASSIFICATION:  Public

SHORT DESCRIPTION: Teleconference information for implementation of PRR763, Use of WGRPP as Planned Operating Level in Day-Ahead Resource Plan for WGRs.

INTENDED AUDIENCE:  QSE Operations and Wind Resource Entity Personnel

DAY AFFECTED:  Operating Day July 1, 2008

LONG DESCRIPTION:   A teleconference is scheduled for June 30, 2008, 10:00 AM CPT to provide the opportunity to ask questions regarding implementation of PRR763.  ERCOT will begin using Wind-powered Generation Production Potential (WGRPP) as the planned operating level in Resource Plans for Wind-powered Generation Resources (WGRs) starting with Operating Day July 1, 2008.  ERCOT will use a forecasting service to provide the WGRPP forecast to each QSE representing WGRs via email on an hourly basis.  Each forecast covers a rolling 48-hour period.

ACTION REQUIRED:  QSEs representing WGRs must confirm with ERCOT the email address (one address per QSE only) they wish to use to receive the hourly WGRPP forecast.  QSEs must send the preferred email address to their ERCOT Account Manager or to [log in to unmask] The forecasting service provider will begin sending WGRPP forecast emails upon installation of email address into an automated email system. The wemails will come from the address “[log in to unmask]”.

ADDITIONAL INFORMATION:  A teleconference is scheduled for 10:00 AM CPT on June 30, 2008 for QSEs and Resource Entities to ask questions prior to the first RPRS procurement study at 1600 for Operating Day July 1, 2008.  Dial in information is as follows:

Call-in toll-free number (US/Canada): 866-469-3239

Participant access code: 62107011 
Password: #

Topic: Implementation of PRR763
Date: Monday, June 30, 2008
Time: 10:00 AM, Central Daylight Time

Also attached to this notice is a Question and Answer document to address the most common questions received to date.

The documents related to the PRR referenced in this Notice are available at: http://www.ercot.com/mktrules/protocols/prr.html http://www.ercot.com/mktrules/issues/prr/750-774/763/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 e-mail at [log in to unmask].

If you are receiving e-mail 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

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