***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. ***** NOTICE DATE: June 20, 2014 NOTICE TYPE: M-A062014-01 Operations SHORT DESCRIPTION: Proposal to Disable Benbrook Switching Station SPS #41 and #42 INTENDED AUDIENCE: ERCOT Market Participants DAY AFFECTED: July 7, 2014 LONG DESCRIPTION: ERCOT has received a proposal to disable the Benbrook Switching Station Special Protection Schemes (SPS #41 and #42). Benbrook SPSs were designed to protect loading of the 345/138 kV autotransformers at the Benbrook Switching station. Oncor Electric Delivery Company, LLC (Oncor) has indicated that post-retirement, these SPSs will be operated with supervisory control and switched manually when necessary. The proposal to disable the Benbrook Switching station Special Protection Schemes (SPS #41 and #42) is being reviewed by ERCOT as described in the SPS Approval Procedure. Comments on the proposal are due by July 7, 2014 and should be submitted to [log in to unmask]<mailto:[log in to unmask]> using the attached comment form. Any questions or concerns raised during this timeframe will be addressed by ERCOT Staff or the entity submitting the SPS proposal. ADDITIONAL INFORMATION: Information regarding SPSs can be found on the ERCOT Market Information System (MIS) under Special Protection Systems and Remedial Action Plans<https://mis.ercot.com/pps/tibco/mis/Pages/Grid+Information/Long+Term+Planning>. A Digital Certificate is required to access the MIS. ACTION REQUIRED: Any comments to this proposal are due to ERCOT by July 7, 2014 using the attached form. 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. sa