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SWAT Renewable Transmission Task Force

SWAT Renewable Transmission Task Force. August 12th 2008. Outline. Overview of the June 2008 SWAT RTTF Technical Sub Group Meeting SWAT Resource Projection / Potential Transmission Maps Queue update (7/3/2008) Full build out potential transmission plan

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SWAT Renewable Transmission Task Force

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  1. SWAT Renewable Transmission Task Force August 12th 2008

  2. Outline • Overview of the June 2008 SWAT RTTF Technical Sub Group Meeting • SWAT Resource Projection / Potential Transmission Maps • Queue update (7/3/2008) • Full build out potential transmission plan • 50% build out potential transmission plan • SWAT ATC Map • SWAT RTTF Power Flow Study • SWAT RTTF Routing Map – Greg Bernoski (APS) • Update on NPT and renewable developments on Navajo lands – Steve Begay (DPA)

  3. Overview of the June 2008 SWAT RTTF Technical Sub Group Meeting • Group met in Phoenix AZ • Discussion was held on • How to merge the transmission plans from the May SWAT RTTF meeting • Power flow study

  4. Action Item List From June 27th 2008 SWAT RTTF Technical Sub-group meeting Part 1/2 • Group members will send a list to Jon Stahlhut (APS) of all generation units that can be turned off. Coal, Nuclear, Hydro, and RMR units should not be included. • APS will coordinate with NPC/SPPC to include their renewable energy zones and lines in the map. • Nevada (Alex Fratkin) will provide Jon Stahlhut/Annemarie Steinhoff updated load for Nevada for the 2018 power flow case. • Lisa Szot will provide updated Queue for each of the SWAT states

  5. Action Item List From June 27th 2008 SWAT RTTF Technical Sub-group meeting Part 2/2 • APS Transmission Planning will coordinate with APS Siting group to reroute transmission lines around sensitive areas to give appropriate mileage of the potential renewable transmission projects. • Jim Charters will provide information on where to find the ATC from CAISO back to AZ. • Jon Stahlhut will compile a new ATC map from the June 2008 Westconnect ATC/TTC meeting and ATC from CAISO back to AZ. • Annemarie Steinhoff/Jon Stahlhut will create an update resource map with updated Queue information and will include Nevada renewable zones and 2000 MW of geothermal in California. • Jon Stahlhut will begin power flow studies of the potential transmission configuration.

  6. SWAT Renewable Transmission Task Force Queue Update

  7. Arizona Renewable Resource Queue (Part 1/2) July 3rd 2008

  8. Arizona Renewable Resource Queue (Part 2/2)July 3rd 2008

  9. New Mexico Renewable Resource Queue (Part 1/3)July 3rd 2008

  10. New Mexico Renewable Resource Queue (Part 2/3)July 3rd 2008

  11. New Mexico Renewable Resource Queue (Part 3/3)July 3rd 2008

  12. Nevada Renewable Resource Queue (Part 1/2)July 3rd 2008

  13. Nevada Renewable Resource Queue (Part 2/2)July 3rd 2008

  14. SWAT Renewable Transmission Task Force Full Build-out Case Maps

  15. Full Build-out

  16. Full Build-out (NM)

  17. Full Build-out (AZ)

  18. Full Build-out (NV)

  19. Full Build-out (So-Cal)

  20. SWAT Renewable Transmission Task Force 50% Build-out Case Maps

  21. 50% Build-out

  22. 50% Build-out (NM)

  23. 50% Build-out (AZ)

  24. 50% Build-out (NV)

  25. 50% Build-out (So_CA)

  26. SWAT Renewable Transmission Task Force ATC Maps

  27. ATC (May/June 2008)

  28. ATC (May/June 2008)

  29. ATC (May/June 2008) (NM)

  30. ATC (May/June 2008) (AZ)

  31. ATC (May/June 2008) (NV)

  32. ATC (May/June 2008) (Las Vegas Area)

  33. SWAT Renewable Transmission Task Force Power Flow Case Assumptions

  34. Power Flow Case Assumptions List from June 27th 2008 SWAT RTTF Technical Sub-group meeting Part 1/2 • Cases to be developed • Full build out of the renewable generation potential and all transmission circuits added • Renewable Generation from queue data will be held constant from July 3rd 2008 queue data. • 50% renewable generation • All renewable generation from the full build out case is to be scaled down by 50% • Engineering judgment will be used to exclude potential transmission circuits from the full build-out case • The source of all generation data will be indicated • There is no consideration of operational issues • 2018 WECC (or West Connect) Heavy Summer Power Flow Case will be used • It is assumed that all 10 year plan projects are correctly inserted in the case • Load will be scaled to 100% loading for AZ, NM, NV, and CA • N-1 redundancy is to be used for EHV transmission • Load pocket upgrades are neglected (230 kV and below)

  35. Power Flow Case Assumptions List from June 27th 2008 SWAT RTTF Technical Sub-group meeting Part 2/2 • Potential renewable generation will operate at 1.04 p.u. voltage with a power factor requirement of 0.95 lag/lead. • Electrical location of the potential renewable generation will be based on engineering judgment. • All coal, nuclear, hydro, and RMR units will be online. Other units will be off line as needed. • Excess renewable generation will be sent to CA. • Series compensation of the potential transmission circuits will be comparable to existing series compensation on similar length paths. • Phase shifter transformer use will be used based on engineering judgment. • Potential transmission circuit electrical parameters are based on newly built circuits, and are determined by the appropriate mileage. Appropriate mileage is determined by a transmission map developed by the APS Siting Group unless circuit data is already known.

  36. SWAT Renewable Transmission Task Force August 12th 2008

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