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Fifth Biennial Transmission Assessment

Arizona Corporation Commission Workshop. Fifth Biennial Transmission Assessment. SRP Ten Year Transmission Plan 2008-2017. Chuck Russell, SRP Transmission Planning. Arizona Industrial Commission Auditorium May 22 & 23, 2008. NAVAJO GS. MOENKOPI. YAVAPAI. MARKETPLACE. CHOLLA (APS).

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Fifth Biennial Transmission Assessment

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  1. Arizona CorporationCommission Workshop Fifth Biennial Transmission Assessment SRP Ten Year Transmission Plan 2008-2017 Chuck Russell, SRP Transmission Planning Arizona Industrial Commission Auditorium May 22 & 23, 2008

  2. NAVAJO GS MOENKOPI YAVAPAI MARKETPLACE CHOLLA(APS) MEAD McCULLOUGH NEVADA WESTWING CORONADO PALO VERDE RUDD HASSAYAMPA JOJOBA KYRENE SILVERKING BROWNING TODAY SALT RIVER PROJECT500kV SYSTEM

  3. NAVAJO GS MOENKOPI YAVAPAI MARKETPLACE CHOLLA(APS) MEAD McCULLOUGH NEVADA WESTWING CORONADO PALO VERDE RUDD HASSAYAMPA JOJOBA KYRENE SILVERKING BROWNING PINAL WEST 2008 SALT RIVER PROJECT500kV SYSTEM

  4. NAVAJO GS MOENKOPI YAVAPAI MARKETPLACE CHOLLA(APS) MEAD McCULLOUGH SUGARLOAF (APS) TS5 (APS) NEVADA WESTWING CORONADO PALO VERDE RUDD HASSAYAMPA JOJOBA KYRENE SILVERKING BROWNING Loop In (Note A) PINAL WEST Note A: This loop in is being studied through an interconnection request 2009 SALT RIVER PROJECT500kV SYSTEM

  5. NAVAJO GS MOENKOPI YAVAPAI MARKETPLACE CHOLLA(APS) TS9 (APS) MEAD SUGARLOAF (APS) McCULLOUGH TS5 (APS) NEVADA PINNACLE PEAK (APS) WESTWING CORONADO PALO VERDE RUDD HASSAYAMPA JOJOBA KYRENE SILVERKING BROWNING PINAL WEST 2010 SALT RIVER PROJECT500kV SYSTEM

  6. NAVAJO GS MOENKOPI YAVAPAI MARKETPLACE CHOLLA(APS) TS9 (APS) MEAD SUGARLOAF (APS) McCULLOUGH TS5 (APS) NEVADA PINNACLE PEAK (APS) WESTWING CORONADO PALO VERDE RUDD HASSAYAMPA JOJOBA KYRENE SILVERKING BROWNING PINAL WEST PINAL SOUTH 2011 SALT RIVER PROJECT500kV SYSTEM

  7. NAVAJO GS MOENKOPI YAVAPAI MARKETPLACE CHOLLA(APS) TS9 (APS) MEAD SUGARLOAF (APS) McCULLOUGH TS5 (APS) NEVADA PINNACLE PEAK (APS) WESTWING CORONADO PALO VERDE RUDD HASSAYAMPA JOJOBA KYRENE SILVERKING BROWNING PINAL WEST PINAL SOUTH NORTH GILA (APS) 2012 SALT RIVER PROJECT500kV SYSTEM

  8. NAVAJO GS MOENKOPI YAVAPAI MARKETPLACE CHOLLA(APS) TS9 (APS) MEAD SUGARLOAF (APS) McCULLOUGH TS5 (APS) NEVADA PINNACLE PEAK (APS) WESTWING CORONADO PALO VERDE RUDD HASSAYAMPA JOJOBA RS20 KYRENE BROWNING SILVERKING SANTA ROSA PINAL WEST SOUTHEASTVALLEY (place holder for CATS only, no current SRP plans) PINAL SOUTH SAGUARO NORTH GILA (APS) To Be Determined SALT RIVER PROJECT500kV SYSTEM

  9. PINNACLE PEAK THUNDERSTONE GOLDFIELD ROGERS BROWNING SANTAN To CORBELL DINOSAUR To SCHRADER TO SILVER KING SALT RIVER PROJECTEASTERN 230kV SYSTEM TODAY DOUBLE CIRCUIT, PHASE TIED LINE EXISTING 230kV CIRCUIT FUTURE 230kV CIRCUIT DESERT BASIN EXISTING 230kV SUBSTATIONS FUTURE 230kV SUBSTATIONS GENERATING STATION

  10. PINNACLE PEAK THUNDERSTONE GOLDFIELD ROGERS BROWNING SANTAN To CORBELL DINOSAUR To SCHRADER TO SILVER KING SOUTHEASTVALLEY/RS22 DESERT BASIN PINAL SOUTH SALT RIVER PROJECTEASTERN 230kV SYSTEM 2011 DOUBLE CIRCUIT, PHASE TIED LINE EXISTING 230kV CIRCUIT FUTURE 230kV CIRCUIT EXISTING 230kV SUBSTATIONS FUTURE 230kV SUBSTATIONS GENERATING STATION

  11. PINNACLE PEAK THUNDERSTONE GOLDFIELD ROGERS BROWNING SANTAN To CORBELL To SCHRADER DINOSAUR RS24 TO SILVER KING SOUTHEASTVALLEY/RS22 DESERT BASIN PINAL SOUTH SALT RIVER PROJECTEASTERN 230kV SYSTEM 2012 DOUBLE CIRCUIT, PHASE TIED LINE EXISTING 230kV CIRCUIT FUTURE 230kV CIRCUIT EXISTING 230kV SUBSTATIONS FUTURE 230kV SUBSTATIONS GENERATING STATION

  12. PINNACLE PEAK THUNDERSTONE GOLDFIELD ROGERS BROWNING SANTAN To CORBELL RS17 DINOSAUR To SCHRADER RS21 RS24 TO SILVER KING RS2 SOUTHEASTVALLEY/RS22 RS23 DESERT BASIN PINAL SOUTH CATSHV03 SALT RIVER PROJECTEASTERN 230kV SYSTEM TO BE DETERMINED DOUBLE CIRCUIT, PHASE TIED LINE EXISTING 230kV CIRCUIT FUTURE 230kV CIRCUIT EXISTING 230kV SUBSTATIONS FUTURE 230kV SUBSTATIONS GENERATING STATION

  13. TO W.A.P.A.PINNACLE PEAK TO APSPINNACLE PEAK SRPPINNACLE PEAK W.A.P.A. WESTWING DEERVALLEY(APS) W.A.P.A. PAPAGO ALEXANDER W.A.P.A. AGUAFRIA BRANDOW THUNDERSTONE To GOLDFIELD WHITETANKS ROGERS RUDD WARD TO APSOCOTILLO ORME LIBERTY(W.A.P.A.) SANTAN CORBELL To BROWNING KYRENE ANDERSON KNOX SCHRADER SALT RIVER PROJECTWESTERN 230kV SYSTEM TODAY DOUBLE CIRCUIT, PHASE TIED LINE EXISTING 230kV CIRCUIT FUTURE 230kV CIRCUIT EXISTING 230kV SUBSTATIONS FUTURE 230kV SUBSTATIONS GENERATING STATION

  14. TO W.A.P.A.PINNACLE PEAK TO APSPINNACLE PEAK SRPPINNACLE PEAK W.A.P.A. WESTWING DEERVALLEY(APS) W.A.P.A. PAPAGO ALEXANDER W.A.P.A. AGUAFRIA BRANDOW THUNDERSTONE To GOLDFIELD WHITETANKS ROGERS RUDD WARD TO APSOCOTILLO ORME LIBERTY(W.A.P.A.) SANTAN CORBELL To BROWNING KYRENE ANDERSON KNOX SCHRADER SALT RIVER PROJECTWESTERN 230kV SYSTEM 2012 DOUBLE CIRCUIT, PHASE TIED LINE EXISTING 230kV CIRCUIT FUTURE 230kV CIRCUIT To RS24 EXISTING 230kV SUBSTATIONS FUTURE 230kV SUBSTATIONS GENERATING STATION

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

  16. TO W.A.P.A.PINNACLE PEAK TO APSPINNACLE PEAK SRPPINNACLE PEAK W.A.P.A. WESTWING DEERVALLEY(APS) RS26 W.A.P.A. PAPAGO ALEXANDER W.A.P.A. AGUAFRIA BRANDOW THUNDERSTONE To GOLDFIELD WHITETANKS ROGERS RUDD WARD TO APSOCOTILLO ORME LIBERTY(W.A.P.A.) SANTAN CORBELL To BROWNING KYRENE ANDERSON KNOX SCHRADER To RS24 SALT RIVER PROJECTWESTERN 230kV SYSTEM TO BE DETERMINED DOUBLE CIRCUIT, PHASE TIED LINE RS17 EXISTING 230kV CIRCUIT FUTURE 230kV CIRCUIT EXISTING 230kV SUBSTATIONS FUTURE 230kV SUBSTATIONS GENERATING STATION

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

  18. ROOSEVELT MORMONFLAT HORSEMESA FRAZIER STEWARTMOUNTAIN TOSILVER KING500kV SILVERKING PINTOVALLEY MIAMI GOLDFIELD MOONSHINE 230kV 115kV PINAL TOTHUNDERSTONE CARREL SPURLOCK ELLISON 230kV OAKFLAT TRASK SEE DETAIL KNOLL SUPERIOR RAY MORRIS DETAIL KEARNY HAYDEN BONNEYBROOK (APS) SUPERIOR 115KV NEW HAYDEN ASARC0 SUPERIOR 230KV TO APACHE(AEPCO) COOLIDGE(W.A.P.A.) 230 CARLOTTA 2008 SALT RIVER PROJECTEASTERN MININGAREA SYSTEM FUTURE SUBSTATION FUTURE LINE EXISTING SUBSTATION EXISTING LINE GENERATING STATION

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

  20. Project I/S Status Study Forum Hassayampa – Pinal West 500kV 2008 Construction Yes CATS/ CATS HV/WATS/SEV E&O/ WECC SRWG, TSS Pinal West – Browning 500kV 2011 Design/ ROW Yes CATS/CATS HV/WATS/SEV E&O/ WECC SRWG, TSS Desert Basin – Pinal South 230kV 2011 Design Yes CATS HV/WECC SRWG, TSS Pinal South – Southeast Valley 230kV 2011 Design Yes CATS HV RS24 230kV Transmission Project 2012 Siting Yes RS26 Transmission Project 2014 Pre Siting Yes Carlotta 115kV Substation 2008 Construction Yes None Summary Status

  21. Types of studies performed for the various projects: N-0, N-1, N-2 contingency studies Transient and Post Transient voltage analyses Stability analyses Short circuit analyses Reports where these projects may be found: CATS, CATS HV, CATS EHV, SWAT, WestConnect, WATS, WECC Annual Study Plan Report Summary Status

  22. Completed Projects Browning – Dinosaur 230kV in service Liberty - Orme 230kV termination into Rudd complete Anderson – Orme #2 230kV created Carrel 115kV Project in service SRP Changes from 4th BTA to 5th BTA

  23. 500kV Projects 2008 Pinal West – Santa RosaIncorporated in Pinal West – Browning in 2011, Santa Rosa loop in deferred indefinitely 2010 Raceway – Pinnacle Peak Now TS9 – Pinnacle Peak 2011 Santa Rosa – Browning Now Pinal West – Browning 230kV Projects 2012 RS24 230kV Transmission ProjectNew project 115kV Projects 2008 Carlotta 115kV Substation New customer substation SRP Changes from 4th BTA to 5th BTA

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