NOTICE DATE:  February 4, 2016
NOTICE TYPE:  M-A020416-01 Operations
SHORT DESCRIPTION:  Proposal to retire Monticello Mining Special Protection System
INTENDED AUDIENCE:  ERCOT Market Participants
DAY AFFECTED:  Comments due February 18, 2016

LONG DESCRIPTION:  ERCOT has received a proposal from Oncor Electric Delivery Company LLC (Oncor) to retire the Monticello Mining Special Protection System (SPS). The Monticello Mining SPS was designed to monitor & relieve thermal violations on the Monticello to Monticello Mining 138 kV line (1650_A). Oncor has implemented a rebuild project in December 2015 that increases the static emergency rating of this 138 kV line from 124 MVA to 326 MVA and hence is proposing to retire the SPS.


The proposal to disable the Monticello Mining Switching Station SPS is being reviewed by ERCOT. Comments on the proposal are due by February 18, 2016 and should be submitted to [log in to unmask]<mailto:[log in to unmask]>  using the attached comment form.  Any questions or concerns submitted by this date will be addressed by ERCOT or Oncor.
ACTION REQUIRED:  Any comments to this proposal are due to ERCOT by February 18, 2016, using the attached form.
ADDITIONAL INFORMATION:  Information regarding this proposal and all SPSs can be found in the "Special Protection Systems and Remedial Action Plans" portlet located on the Long-Term Planning<https://mis.ercot.com/pps/tibco/mis/Pages/Grid+Information/Long+Term+Planning> page of ERCOT's Market Information System (MIS). A digital certificate is required to access the MIS.
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.




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