NOTICE DATE:  June 22, 2009

NOTICE TYPE:  M-A062209-01   Outage – TCR Website

SHORT DESCRIPTION:  Transmission Congestion Right (TCR) website experienced an outage in service from 10:05 AM to 11:50 AM on Sunday, June 21, 2009

INTENDED AUDIENCE:  ERCOT Market Participants

DAY AFFECTED:  June 21, 2009 from 10:05 AM to 11:50 AM

LONG DESCRIPTION:  Transmission Congestion Right (TCR) website experienced an outage in service from 10:05 AM to 11:50 AM on Sunday, June 21, 2009 due to a failure of the Windows Clustering Service.

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]">[log in to unmask].

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