NOTICE DATE:  December 2, 2010

NOTICE TYPE:  M-C120210-01 Operations

SHORT DESCRIPTION:  MOS Web Application Shutdown

INTENDED AUDIENCE:  All Market Participants, Qualified Scheduling Entities (QSEs)

DAY AFFECTED:  December 3, 2010
LONG DESCRIPTION:  ERCOT will be moving MOS Web Applications to a stand-by condition as of December 3, 2010, 08:00 CPT. Because Zonal submissions have ceased, data on these displays and reports is no longer being updated and is not indicative of any current system conditions. These are all associated with the Zonal market which ceased operation on November 30, 2010. Participants will no longer have access to the following applications through Texas Market Link, MOS Listener API and ERCOT.com:

*         MOS Listener API submissions and queries

*         MOSTML MUI web submissions

*         Zonal Outage Scheduler

*         MOS Public content (Application servers have already been shutdown)

*         Dynamic Ratings
These applications will be placed in "stand-by mode".
ERCOT is also suspending the Zonal Real-Time telemetry data. QSEs and TSPs may suspend sending zonal telemetry; however, as communicated on market calls, the zonal ICCP/RTU systems need to remain available through December.
ADDITIONAL INFORMATION: The ERCOT Market Information List contains information on what reports and data are available. It is available on the Market Data Transparency page under Services on the ERCOT website:
http://www.ercot.com/services/mdt/.

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 email at [log in to unmask]<mailto:[log in to unmask]>.
If you are receiving email 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/>.




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