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APS Transmission Planning SRP Transmission Planning Phoenix, Arizona June 24, 2010

APS/SRP Stakeholder Meeting For Transmission Planning FERC Order 890 OATT Attachment K (APS Attachment E). APS Transmission Planning SRP Transmission Planning Phoenix, Arizona June 24, 2010. Agenda. Welcome, Introductions, and Meeting Overview

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APS Transmission Planning SRP Transmission Planning Phoenix, Arizona June 24, 2010

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  1. APS/SRP Stakeholder MeetingFor Transmission PlanningFERC Order 890 OATT Attachment K(APS Attachment E) APS Transmission Planning SRP Transmission Planning Phoenix, Arizona June 24, 2010

  2. Agenda • Welcome, Introductions, and Meeting Overview • Status of Action Items-12/18/09 Joint APS/SRP 4th Quarter Public Planning Meeting • APS Planning • APS Planning Calendar & Methodology • APS Filed Ten-Year Plan and Renewable Transmission Projects Review • 2010 Study Assumptions • Interconnection Requests and Transmission Service Requests • Requests received for Economic Planning Studies • Stakeholders invited to submit requests for additional transmission studies • Comments/Questions • SRP Planning • SRP Planning Calendar & Methodology • SRP Filed Ten-Year Plan Review • SRP Transmission Projects for Renewable Generation • Interconnection Requests and Transmission Service Requests • Requests Received for Economic Planning Studies • Stakeholders invited to submit requests for additional transmission studies • Comments/Questions • Current Activities Update • Stakeholder Questions/Comments • Action Items APS & SRP 2nd Quarter Stakeholder Meeting 2

  3. Welcome • Introductions • Meeting Overview APS & SRP 2nd Quarter Stakeholder Meeting

  4. 2. Status of Action Items • Request the Operating Agent for JPP (Joint Participation Projects) to include the other owners on OASIS. • Interconnection Queues are FERC mandated documents and do not include owners for JPPs • Request APS and SRP to explore opportunities to consolidate or coordinate the Order 890 Stakeholder meetings with other scheduled meetings. • Ongoing APS & SRP 2nd Quarter Stakeholder Meeting

  5. 3.a. APS Planning Calendar & Methodology WECC/TEPPC/WestConnect Planning Calendar APS Planning Calendar Planning Process/Methodology APS & SRP 2nd Quarter Stakeholder Meeting 5

  6. APS & SRP 2nd Quarter Stakeholder Meeting 6 6

  7. APS & SRP 2nd Quarter Stakeholder Meeting 7

  8. APS & SRP 2nd Quarter Stakeholder Meeting 8

  9. 3.b. APS Ten Year Plan Projects 2010-2019 Transmission Plan Filed on Jan. 29, 2010 APS & SRP 2nd Quarter Stakeholder Meeting 9

  10. 2009 (In-Service): Dugas & Sugarloaf 500/69kV substations Milligan 230/69kV substation 2010: Morgan 500/230kV substation (In-Service) Morgan-Pinnacle Peak 500kV line 2012: Delany-Palo Verde 500kV line Flagstaff 345/69kV substation TS12 230/69kV substation 2013: Mazatzal 345/69kV substation 2014: Delany-Sun Valley 500kV line Hassayampa-N.Gila 500kV line D. Basin-Pinal Central 230kV line Pinal Central-Sundance 230kV line Bagdad 115kV relocation 2016: Sun Valley-Morgan 500kV line APS & SRP 2nd Quarter Stakeholder Meeting

  11. APS & SRP 2nd Quarter Stakeholder Meeting 11

  12. 2010: • Morgan-Raceway 230kV (in-service) 2011: • Raceway-Pinnacle Peak 230kV 2014: • Scatter Wash 230/69kV substation • Sun Valley-Trilby Wash 230kV 2015: • Trilby Wash-Palm Valley 230kV APS & SRP 2nd Quarter Stakeholder Meeting 12

  13. APS & SRP 2nd Quarter Stakeholder Meeting 13 13

  14. 2014: • Palo Verde Hub-North Gila 500kV #2 line • North Gila-TS8 230kV line APS & SRP 2nd Quarter Stakeholder Meeting 14 14

  15. Project Timing Changes APS & SRP 2nd Quarter Stakeholder Meeting

  16. 3.b. APS Planning – Transmission Projects for Renewable Generation 1) Palo Verde to Delany 500kV 2) Palo Verde to North Gila 500kV 3A) Palo Verde to Valley Load (Liberty) 3B) Gila Bend to Valley Load (Liberty) 4) Delany to Blythe 500kV APS & SRP 2nd Quarter Stakeholder Meeting

  17. APS & SRP 2nd Quarter Stakeholder Meeting

  18. 3.c. 2010/2011 Study Assumptions • Coordinated Base Cases (Seed Cases) • 2012 - SATS 2012 case • 2015 - WECC 2015HS • 2020 - 2020 WestConnect case • 69kV transmission models incorporated • Most up-to-date forecasts for peak summer loads APS & SRP 2nd Quarter Stakeholder Meeting

  19. Summer Peak cases TPL-001 & TPL-002 Thermal analysis (All 10 years) Post-Transient (All 10 years) Transient Stability (2013 & 2018) TPL-003 & TPL-004 (2013 & 2018) Maximum Load Serving Capability for Phx & Yuma (All 10 years) TPL-001 & TPL-002 Thermal and Post Transient Winter Load cases (2013 & 2019 WECC cases) Thermal, Transient Stability, & Post Transient TPL-001 thru TPL-004 3.c. 2009 NERC/WECC Reliability Studies APS & SRP 2nd Quarter Stakeholder Meeting 19

  20. 2009 NERC/WECC Studies APS & SRP 2nd Quarter Stakeholder Meeting 20 20 20

  21. 2009 NERC/WECC Studies APS & SRP 2nd Quarter Stakeholder Meeting 21 21 21

  22. Summer Peak cases TPL-001 & TPL-002 Thermal analysis (All 10 years) Post-Transient (All 10 years) Transient Stability (2013 & 2019) TPL-003 & TPL-004 (2013 & 2019) Maximum Load Serving Capability for Phx & Yuma (All 10 years) TPL-001 & TPL-002 Thermal and Post Transient Winter Load cases (cases unknown at this time) Thermal, Transient Stability, & Post Transient TPL-001 thru TPL-004 3.c. 2010 NERC/WECC Reliability Studies APS & SRP 2nd Quarter Stakeholder Meeting 22 22

  23. 3.d. Interconnection & Study Requests • Generation Interconnection requests • APS OASIS contains Generation Interconnection Queue • http://www.oatioasis.com/azps/index.html • 30 Solar projects - 8336 MW • 7 Wind projects - 2835 MW • 1 Others (Coal, NG, Biomass, etc.) - 1400 MW • 4 Transmission Interconnection Requests • Currently no Transmission Service Requests under Study • Currently no Economic Study Requests APS & SRP 2nd Quarter Stakeholder Meeting

  24. 3.e&f. Stakeholder Study Requests • Study requests can be taken at today’s meeting • Study requests can be made at any time to: • apstransmission@aps.com APS & SRP 2nd Quarter Stakeholder Meeting

  25. 3.g. Comments & Question Comments?????? Questions!!!!!!!!!! APS & SRP 2nd Quarter Stakeholder Meeting 25

  26. 4.a SRP Planning - Calendar & Methodology WECC/TEPPC/SWAT Planning Calendar SRP Planning Calendar Assumptions and Methodology Types of Studies Performed Proposed 2010–2019 Ten Year Plan APS & SRP 2nd Quarter Stakeholder Meeting 26

  27. APS & SRP 2nd Quarter Stakeholder Meeting 27 27

  28. APS & SRP 2nd Quarter Stakeholder Meeting 28

  29. APS & SRP 2nd Quarter Stakeholder Meeting 29

  30. 4.a 2010-2019 Study Assumptions/Methodology Coordinated Base Cases (Seed Cases) NERC Compliance Studies 2011 – APS/SRP 2011 coordinated case 2016 – APS/SRP 2016 coordinated case BTA Studies 2019 - CATS-EHV 2018 coordinated case 69kV transmission models incorporated Most up-to-date forecasts for peak summer loads APS & SRP 2nd Quarter Stakeholder Meeting 30

  31. NERC Compliance Studies Cases 2011 & 2016 Summer Peak & Offpeak Cases 2011 & 2016 Simultaneous Import Limit (SIL) & Maximum Load Serving Capability (MLSC) Cases Summer Peak & Offpeak cases Thermal analysis Post-Transient Transient Stability 4.a 2010-2019 Study Assumptions/Methodology APS & SRP 2nd Quarter Stakeholder Meeting 31

  32. SIL & MLSC Cases (Phx) Thermal and Post-Transient 4.a 2010-2019 Study Assumptions/Methodology APS & SRP 2nd Quarter Stakeholder Meeting 32

  33. Planning Methodology APS & SRP 2nd Quarter Stakeholder Meeting

  34. Planning Methodology Note: TPL-003 studies were performed on Peak & Off-Peak cases APS & SRP 2nd Quarter Stakeholder Meeting

  35. 4.bSRP Ten Year Plan Projects2010-2019 Filed APS & SRP 2nd Quarter Stakeholder Meeting 35

  36. 2014 FUTURE 500kV SUBSTATION 2020 2016 TBD 2010 2014 TBD 2011 EXISTING 500kV SUBSTATION EXISTING LINES FUTURE LINES NAVAJO GS MOENKOPI YAVAPAI CHOLLA(APS) MARKETPLACE DUGAS (APS) MORGAN(APS) 2010 MEAD SUGARLOAF (APS) Sun Valley (APS) 2014 McCULLOUGH NEVADA PINNACLE PEAK (APS) 2010 WESTWING 2012 DELANY CORONADO PALO VERDE RUDD HASSAYAMPA TBD JOJOBA RS20 TBD KYRENE TBD TBD 2014 BROWNING SILVERKING SANTA ROSA 2014 ABEL 2020 PINAL WEST 2011 2014 (TBD, place holder for CATS only, no current SRP plans) PINAL CENTRAL 2014 NORTH GILA (APS) SUNZIA (SPG) SAGUARO Central New Mexico 2014 2013/2014 TORTOLITA (TEP) SALT RIVER PROJECT500kV SYSTEM APS & SRP 2nd Quarter Stakeholder Meeting

  37. 2011: • Browning-Pinal Central 500kV (it will be energized as Randolph-Browning 230kV until 2014) 2014: • Delany-Sun Valley 500kV • Hassayampa-N.Gila 500kV line • Pinal West-Pinal Central 500kV • Pinal Central 500/230kV substation 2016: • Sun Valley-Morgan 500kV 2020: • Pinal Central-Abel #2 500kV SALT RIVER PROJECT500kV SYSTEM APS & SRP 2nd Quarter Stakeholder Meeting

  38. TBD DOUBLE CIRCUIT, PHASE TIED LINE PINNACLE PEAK THUNDERSTONE GOLDFIELD SALT RIVER PROJECTEASTERN 230kV SYSTEM BRANDOW TBD ROGERS TBD TBD BROWNING SANTAN To CORBELL TBD RS17 TBD 2018 DINOSAUR 2017 RS21 TBD TBD To SCHRADER TBD TO SILVER KING RS24 TBD 2011 2018 2018 RS20 TO SILVER KING TBD LOOP IN TBD 2017 TBD TBD ABEL/RS22 RS23 2011 TBD EXISTING 230kV CIRCUIT 2011 RANDOLPH SWITCHYARD FUTURE 230kV CIRCUIT DESERT BASIN 2011 EXISTING 230kV SUBSTATIONS 2014 2014 PINAL CENTRAL 2014 FUTURE 230kV SUBSTATIONS 2014 GENERATING STATION CATSHV03 TBD APS & SRP 2nd Quarter Stakeholder Meeting

  39. 2011: • Dinosaur-Abel-Randolph 230kV 2014: • Desert Basin-Pinal Central 230kV line • Pinal Central - Randolph 230kV line • RS26 230/69kV substation 2017: • Abel-Schrader 230kV 2018: • Abel-Santan 230kV • RS24 230/69kV substation SALT RIVER PROJECTEASTERN 230kV SYSTEM APS & SRP 2nd Quarter Stakeholder Meeting

  40. TBD DOUBLE CIRCUIT, PHASE TIED LINE SALT RIVER PROJECTWESTERN 230kV SYSTEM TO W.A.P.A.PINNACLE PEAK TO APSPINNACLE PEAK SRPPINNACLE PEAK W.A.P.A. WESTWING TBD RS26 DEERVALLEY(APS) 2014 PAPAGO RS25 W.A.P.A. TBD ALEXANDER W.A.P.A. AGUAFRIA BRANDOW THUNDERSTONE To GOLDFIELD WHITETANKS TBD ROGERS RUDD TBD WARD TO APSOCOTILLO ORME LIBERTY(W.A.P.A.) SANTAN CORBELL To BROWNING KYRENE ANDERSON KNOX RS17 SCHRADER TBD EXISTING 230kV CIRCUIT FUTURE 230kV CIRCUIT To RS24 EXISTING 230kV SUBSTATIONS FUTURE 230kV SUBSTATIONS APS & SRP 2nd Quarter Stakeholder Meeting GENERATING STATION

  41. DETAIL SUPERIOR 115KV SUPERIOR 230KV FUTURE SUBSTATION EXISTING LINE FUTURE LINE ROOSEVELT MORMONFLAT HORSEMESA FRAZIER STEWARTMOUNTAIN TOSILVER KING500kV SILVERKING 230 TBD(230kV) PINTOVALLEY MIAMI GOLDFIELD TBD MOONSHINE 230kV 115kV PINAL TOTHUNDERSTONE CARLOTTA CARREL SPURLOCK ELLISON TBD(230kV) OAKFLAT TRASK SEE DETAIL RS20 TBD(230kV) 230kV TBD KNOLL SUPERIOR RAY MORRIS KEARNY TBD HAYDEN BONNEYBROOK (APS) NEW HAYDEN TBD ASARC0 TO APACHE(AEPCO) COOLIDGE(W.A.P.A.) SALT RIVER PROJECTEASTERN MININGAREA SYSTEM EXISTING SUBSTATION APS & SRP 2nd Quarter Stakeholder Meeting GENERATING STATION

  42. Electric System Additions/Upgrades APS & SRP 2nd Quarter Stakeholder Meeting

  43. Summary Status Project I/S Status Study Forum Pinal West – Browning 500kV 2011, 2014 Des/ ROW Yes CATS/CATS HV/WATS/SEV E&O/ Desert Basin – Pinal Central 230kV 2014 Des Yes CATS HV/WECC SRWG, TSS RS24 230kV Transmission Project 2018 Siting Yes RS26 Transmission Project 2014 Pre Siting Yes APS & SRP 2nd Quarter Stakeholder Meeting

  44. SRP Changes from 2009 to 2010 500kV Projects • 2010 Morgan – Pinnacle Peak Formerly Raceway – Pinnacle Peak • 2013/2014 SunZia Project Delayed from 2013 • 2014 Pinal West – Pinal Central Delayed from 2013 • 2014 Tortolita – Pinal Central Delayed from 2013 230kV Projects • 2014 Desert Basin – Pinal Central 230kV Delayed from 2013 • 2017/2018 RS24 230kV Transmission Project Delayed from 2013

  45. 4.c. SRP Planning – Transmission Projects for Renewable Generation • Pinal West – Pinal Central 500kV line • Pinal Central – Tortolita 500kV line • Palo Verde – Delany 500kV line APS & SRP 2nd Quarter Stakeholder Meeting

  46. APS & SRP 2nd Quarter Stakeholder Meeting

  47. SRP Planning - Study Requests • Generation Interconnection Requests • Transmission Interconnection Requests • Transmission Service Requests • Economic Study Requests APS & SRP 2nd Quarter Stakeholder Meeting

  48. 4.d. SRP Planning – Study Requests Generation Interconnection Requests listed below are for SRP solely owned transmission: 4 Natural Gas projects - 2516 MW 2 Wind projects - 900 MW The joint interconnection requests are listed on SRP OASIS website @ http://www.oatioasis.com/SRP/index.html APS & SRP 2nd Quarter Stakeholder Meeting

  49. 4.d. SRP Planning - Study Requests • Currently there are no Transmission Interconnection Requests under study APS & SRP 2nd Quarter Stakeholder Meeting

  50. 4.d. SRP Planning - Study Requests • Currently there are no Transmission Service Requests under study APS & SRP 2nd Quarter Stakeholder Meeting

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