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Marv Landauer

Marv Landauer. Report to TSS on RS Activities April 25-27, 2012 Salt Lake City. RS Activities. Performance Category Upgrade Requests were approved by RS and PCC Hassayampa-Pinal West and Hassayampa-Jojoba 500 kV Hassayampa-Pinal West and Jojoba-Kyrene 500kV

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Marv Landauer

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  1. Marv Landauer Report to TSS on RS Activities April 25-27, 2012 Salt Lake City

  2. RS Activities • Performance Category Upgrade Requests were approved by RS and PCC • Hassayampa-Pinal West and Hassayampa-Jojoba 500 kV • Hassayampa-Pinal West and Jojoba-Kyrene 500kV • The modified WECC TPL System Performance Criteria was approved by the WECC BOD December 1, 2012 and became effective April 1, 2012. Modifications include: • Modified the definition of Adjacent Transmission Circuits • Removed the definition for Common Corridor • Modified the applicability of the Adjacent Circuits Requirement R1.1

  3. Operations and Planning Criteria Differences • There are inconsistencies between new WECC Adjacent Circuit Criteria and Regional Difference in FAC 010 and 011 Standards • The intent is for the WECC Adjacent Transmission Circuit definition developed in the criterion to apply to Requirement E.1.1.5 in the WECC Difference in the FAC 010 and 011 Standards, but the definition may not apply until the WECC Difference in the FAC Standards is modified. • The RS is drafting a short document stating its understanding that System Operators do not need to operate to more stringent adjacent circuits criterion than what the system is planned for. • An ad hoc group was formed to scope out the inconsistencies between the WECC TPL System Performance Criteria and the WECC Difference in the NERC FAC-010 and 011 Standards that might support a future Standards Authorization Request (SAR).

  4. SAR to Align WECC Planning Criteriawith NERC TPL Standard • The NERC-TPL-001-2 Standard was filed with FERC October 19, 2011 • RS is preparing a SAR to align the proposed NERC Transmission Planning Standard TPL-001-2 and the WECC TPL System Performance Criteria and also provide other clarifications and refinements to the WECC criteria as needed. • Two mapping documents were prepared • TPL-001-2 events P0 thru P7 and their relationship to Categories A, B, and C from the existing NERC TPL Standards. • TPL-001-2 events P0 thru P7 and their relationship to the existing WECC disturbance/performance table. • Distributed at the January TSS meeting for comment.

  5. RS Activities • Impact of High Transfers in a common corridor with the new Adjacent Transmission Circuits Definition was discussed at the January 2012 RS meeting. • how much risk is acceptable • by what means potential load would be lost • the bounds of the criteria • other criteria that may provide guidance, etc. • RS preparing response to TSS request on clarification of WECC Standard WRS1.2

  6. Questions?

  7. RS Update Drafting Team Finalized Adjacent Circuit Criteria (WRS1.1) at September 7 meeting: • Criteria does not apply to internal systems • 3 mile total exemption for station entrances, river crossings, etc. • Minimum separation of 250 feet for Adjacent Circuits • Only applicable if both circuits are above 300 KV • Only applies to adjacent circuits In previous proposal, a lower voltage intermediate circuit would not impact adjacency if outer circuits were within 250 feet (not raising the bar) - new • Approved by PCC in October • Approved by Board with April 2012 implementation

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