NOTICE DATE: January 30, 2009

NOTICE TYPE: W-A120208-02 Operations

SHORT DESCRIPTION: Unit Test Web Application Enhancements

INTENDED AUDIENCE: Qualified Scheduling Entities (QSEs)

DAY AFFECTED: February 12, 2009

LONG DESCRIPTION: The Net Dependable Capability and Reactive Capability (NDCRC) application has been available through the Texas Market Link (TML) since September 1, 2008, for Market Participants. This application is a web interface that allows Qualified Scheduling Entities (QSEs) with Generation Resources to submit the ERCOT-required seasonal High Sustainable Limit (HSL), biennial unit reactive tests, and results of the unannounced tests online.

Please note that for Jointly Owned Units (JOUs), the Master QSE should submit the Seasonal HSL. The HSL submitted should reflect the whole physical unit.

Based on feedback from the market, a few enhancements have been made to the NDCRC application and will be implemented on February 12, 2009. These enhancements include:

Raising the default Seasonal HSL to 120% of previous season

Adding 00 through 59 minute options in the Start and Stop Test dropdowns on the Reactive Test

Adding Retest selection option to Reactive Test

Adding help explaining when submitted tests can be edited

ADDITIONAL INFORMATION: Effective December 1, 2008, use of the NDCRC application has been mandatory for submitting seasonal, biennial unit tests and results of unannounced tests. Paper copies are no longer accepted.

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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