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

NOTICE DATE: May 17, 2010

NOTICE TYPE: Education/Training

SHORT DESCRIPTION: Nodal Ancillary Services Workshop Scheduled

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

DAY AFFECTED: Wednesday, June 30, 2010, 09:30 – 16:00 (CDT)

LONG DESCRIPTION: ERCOT will host a Nodal Ancillary Services Workshop on June 30, 2010, from 09:30 until 16:00 (CDT). The workshop will be hosted at ERCOT Austin, 7620 Metro Center Dr., Room 206, Austin, Texas 78744, as well as offered as a WebEx presentation.

This full day workshop will describe how Ancillary Services influence or are handled during:

Market Notices and Reports
Day-Ahead Market processes
Current Operating Plan updates for AS Allocation and
RUC Processes

Additionally, the workshop will address:

AS Resource Responsibility Capacity
Supplemental AS Markets
Monitoring AS Reserve Postings in ERCOT
AS Deployment
AS Qualification
AS Capacity Performance Measures
AS Energy Deployment Performance

ACTION REQUIRED: To register for the workshop, please send an email to [log in to unmask] with your name and the name of your company by the close of business on June 25, 2010. Please put “Nodal Ancillary Services Workshop” in the subject line of the email, and include the names of all attendees if there will be multiple attendees from the same company.

ADDITIONAL INFORMATION: Any documents presented in this meeting will be posted on the ERCOT Calendar located at http://www.ercot.com/calendar/2010/06/20100630-MT. See below for WebEx meeting details:

Topic: Nodal Ancillary Services Workshop
Date: Wednesday, June 30, 2010
Time: 09:30 – 16:00 (CDT)
Meeting Number: 351 680 368
Meeting Password: Nodal123!!

Please click the link below to see more information, or to join the meeting.

To join the online meeting:

1. Go to https://ercot.webex.com/ercot/j.php?ED=135789882&UID=481702862&PW=NM2ZkYTc5ZWJl&RT=MiM3
2. Enter your name and email address.
3. Enter the meeting password: Nodal123!!
4. Click "Join Now".

To join the teleconference:

Call-in toll-free number (US/Canada): 866-469-3239
Meeting Number: 351 680 368

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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