NOTICE DATE:  March 5, 2009
NOTICE TYPE:  M-A030509-01 Operations
SHORT DESCRIPTION:  Clarification regarding submission of Network Model Changes
INTENDED AUDIENCE:  ERCOT Market Participants
LONG DESCRIPTION:  The purpose of this notice is to clarify that there are no restrictions or "freezes" currently in place limiting network model change submissions via the service request process.

This clarification is in response to Market Participant questions regarding network model change submission limitations as ERCOT approaches the Single-Entry Model (SEM) Go-Live activities.

ERCOT will continue to work closely with the Network Data Support Working Group (NDSWG) on behalf of the Reliability and Operations Subcommittee (ROS) to determine and communicate the appropriate network model change submission procedure during the implementation activities leading up to SEM Go-Live over the next few months.
More detailed information is available in the TAC approved Single Entry Model Go-Live Procedure (http://nodal.ercot.com/readiness/golive/index.html).
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]<mailto:[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<http://lists.ercot.com/>.
kd