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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


Swg update
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


Adjacent criteria study
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


Adjacent criteria study1
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


Adjacent criteria study2
Adjacent Criteria Study

  • from 2019 PC1A

  • Given limited potential increases, do we still want to run this study?


Transmission cost estimates
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 ([email protected])


2010 study program
2010 Study Program

  • 2019 Study results - Heidi


Scg foundation project list
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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