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SWG Report to TAS 2010 Study Program August 19, 2010 Marv Landauer

SWG Report to TAS 2010 Study Program August 19, 2010 Marv Landauer. SWG Update. 2010 Study Program Status Marv Landauer 2029 Study Report (earlier) 2019 Study Progress and Results Heidi Pacini 2020 Study Development i) Transmission Marv Landauer

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SWG Report to TAS 2010 Study Program August 19, 2010 Marv Landauer

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  1. SWG Report to TAS 2010 Study Program August 19, 2010 Marv Landauer

  2. SWG Update • 2010 Study Program Status Marv Landauer • 2029 Study Report (earlier) • 2019 Study Progress and Results Heidi Pacini • 2020 Study Development i) Transmission Marv Landauer (1) Documentation recommendation Steve Walton ii) Resource Development Tom Carr iii) 2020 case status Heidi and Ismael Aguayo • Future Study Case Development Steven Wallace

  3. Adjacent Criteria Study • NTTG requested evaluation of congestion impacts of removal of WECC adjacent circuit criteria • Resistance from TSS to provide information • Resource requirements and having another “Rating” out there • TSS wants proper description/caveats for study • Reviewed critical outages listed in Path Rating Catalog • Pursued existing paths that listed N-2 outages or did not list a critical outage with TSS contact • Harder to quantify rating change for future projects – assume expected ratings would not change • criteria change would be most beneficial for siting projects

  4. Adjacent Criteria Study • 17 path directions listed N-2 outage as critical outage or did not list a critical outage • 14 of those path directions included common towers, had RAS to mitigate N-2 outage, had additional N-1 limiting outages, etc – would not result in path increase w/o criterion • Only 3 paths would result in increases w/o criterion • Path 18 N-S: 8 MW • Path 26 S-N: 1000 MW • Path 51: 400 MW

  5. Adjacent Criteria Study • from 2019 PC1A • Given limited potential increases, do we still want to run this study?

  6. Transmission Cost Estimates • SWG is using transmission cost estimates developed by WREZ process. • SWG will use developer mileages, WREZ cost per mile to develop project costs • Substation costs seem high, were ignored in the cost estimates developed for last year’s study. • Task force being created to review and update these costs – needed by September 30 • Jeff Hein to lead (Jeff.Hein@nrel.gov)

  7. 2010 Study Program • 2019 Study results - Heidi

  8. SCG Foundation Project List • SCG Final Foundation List posted • SWG Foundation List webinar July 16 • SWG discussion July 28 • SWG agrees with criteria used to develop Foundation List and the application of the criteria • SWG plans to use Foundation Project List for 2020 base case (one abstention) • One issue remaining with NV projects (SNIP) • Additional documentation is desired (WECC staff recommendation – Steve)

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