*******TEXAS NODAL MARKET NOTICE*******

NOTICE DATE:  August 12, 2010

NOTICE TYPE:  Market Trials

SHORT DESCRIPTION:  Nodal 24-Hour Full-System/Load Frequency Control Workshop scheduled for August 13, 2010

INTENDED AUDIENCE:  Nodal Accountable Executives, Nodal Transition Project Managers, Market Trial Contacts

DAY AFFECTED:  August 13, 2010

LONG DESCRIPTION:  ERCOT will host a Nodal 24-Hour Test Workshop on Friday, August 13, 2010, from 11:00 until 12:00 (CDT) as part of the regularly scheduled Real-Time Market Call.

This workshop will provide an opportunity for Market Participants and ERCOT to:

• Discuss the upcoming August 19 – 20, 2010, 24-Hour Test
• Discuss additional analysis of the test results from the August 4 – 5, 2010, 24-Hour Test

ADDITIONAL INFORMATION:  The meeting materials for this workshop will be posted to the Market Trials calendar detail at http://www.ercot.com/calendar/2010/08/20100813-MT.

CONTACT:  If you have any questions, please contact either the Market Trials team by email at [log in to unmask] or 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].

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