1. APS Ten-Year Plans 2006-2015 4th BTA Presentation
Bob Smith
Manager Transmission Planning
June 6, 2006

2. APS EHV & OUTER DIVISION 115/230 KV TRANSMISSION PLANS 2006 - 2015
PAGE TO
NAVAJO
CRYSTAL
FOUR
CORNERS
500KV J/O 5 K V
MOENKOPI
TO CALIF.
345KV
TO MEAD /
To GLEN
MARKETPLACE
500KV J/O
SELIGMAN
CANYON
(WAPA)
FLAGSTAFF
COCONINO
ROUND
VALLEY
YAVAPAI
VERDE
2 circuits
FLAGSTAFF
(APS)
2009
230KV
FLAGSTAFF
BAGDAD
WILLOW
(WAPA)
CHOLLA
LAKE )
SECOND
KNOLL
2009 ( A S R ( A P P )
CORONADO
PRESCOTT W A W P A ( )
VV1
2009
PREACHER
RACEWAY
2010
GAVILAN
2012
PEAK
CANYON
2009
TS5
WEST
2012
MAZATZAL O
WING 5 K V J /
PHOENIX
PINNACLE
PALO VERDE-
PEAK
HASSAYAMPA
LIBERTY
LIBERTY
2012
J/O
RUDD
KYRENE
JOJOBA
KNOX
500KV
REDHAWK
DESERT
J/O T
GILA RIVER/ B D
BASIN
TO CALIF.
CASA
500KV
N.GILA
PANDA
GRANDE
GILA BEND
SANTA T B D
YUMA
ROSA
SAGUARO
TAT MOMOLI
ORACLE
SAN MANUEL
YUCCA
JUNCTION
LEGEND
EXISTING 500 KV LINES
TUCSON
ADAMS
EXISTING 345 KV LINES
EXISTING 230 KV LINES
POWER PLANT
EXISTING 115 KV LINES
PLANNED 500KV LINES
NUCLEAR POWER PLANT
MURAL
PLANNED 345KV LINES
PLANNED 230KV LINES
PLANNED 115KV LINES
115KV & ABOVE SUBSTATION (EXISTING)
NORTH
12/1/05
June 6, th BTA
230KV & ABOVE SUBSTATION (FUTURE)
Transmission Planning
J/O
JOINT OWNSHIP
Substation locations and line routings depict an electrical connection only and do
not
reflect any assumed physical locations or routing.

3. PHOENIX METROPOLITAN AREA TRANSMISSION PLANS 2006-2015
To Navajo
To New
To Prescott
Waddell
Raceway
GAVILAN PEAK
500KV
2010
AVERY
2009
CAREFREE HWY.
TBD
2010
TS6 W . A D P R TO
2010
500kv
(SRP)
TBD A
GLEN
J/O M A I
CANYON P
(WAPA) TO A
CHOLLA A P W
345KV
2010
2 - Circuits
2 - Circuits
TS1
2009
TS5
TBD
J/O
2010
2011
TS2
TBD TO
SRP W Y .
SRP
PALO
WESTWING F
PINNACLE
PEAK
VERDE 1 7
REACH - I TO
PALO VERDE
SURPRISE
TBD
DEER
LONE PEAK
VALLEY
BELL RD.
J/O APS/SRP
CACTUS D . R
EL SOL
AGUA D
ALEXANDER
SUNNYSLOPE L
FRIA E F I
GLENDALE . W Y H C 1 7 F T I - L I
BETHANY HOME RD.
MCDONALD RD.
WHITE TANKS
2007
PALM VALLEY
MEADOWBROOK
(APS)
BUCKEYE
I - 10 FWY.
COUNTRY CLUB W A P A
LIBERTY/TS4
LINCOLN ST.
RUDD
WEST
PHOENIX
I - 10 FWY.
OCOTILLO
TO PALO VERDE
500KV
SUPERSTITION FWY. .
BASELINE RD.. W Y
KYRENE F
KNOX
TO BROWNING
BASELINE RD..
APS EXISTING 500KV LINES
230KV SUBSTATION (EXISTING) 1 -
(SRP)
500kV
APS EXISTING 345KV LINES I
APS EXISTING 230KV LINES
230KV SUBSTATION (FUTURE) TO
UNDERGROUND
500kV
GENERATING SITE &
GILA BEND
APS PLANNED LINES
230KV SUBSTATION
TO JOJOBA
230KV
JOINT OWNSHIP
J/O
Transmission Planning
June 6, th BTA
OTHER COMPANY LINES
TO SANTA ROSA
Substations locations and line routings are approximate
500KV
345KV

4. Changes from 2004 to 2006 Project Status 2005 Gavilan Peak 230kV
Completed
TS3 230/69kV substation
Named Palm Valley
2006 Rudd-Palm Valley-TS4 230kV
Changed to I/S date of 2007
2006 Flagstaff 345/69kV interconnection
Changed to I/S date of 2009
2006 Jojoba cut-in of TS4-Panda 230kV
Changed to I/S date of 2011
South East Valley 500kV project - Hassayampa-Pinal West & Pinal West-Santa Rosa-Browning
Removed from APS plan - APS no longer participating
2007 PV Hub-TS5 500kV
Changed to I/S date of 2009 and added interconnection options (AVGS & HQJNT)
June 6, th BTA

5. Changes from 2004 to 2006 Project Status 2007 TS5-TS1 230kV
Changed to I/S date of 2009
2008 TS1-TS2-Palm Valley 230kV
w/TS2 I/S of 2012
Changed to I/S date of 2010
w/TS2 I/S date of 2011
2008 RY-AV 230kV
2009 PP-TS6-AV 230kV
2009 Second Knoll 500/69kV
Interconnect moved from CO-SK line to CO-CH line
2010 TS5-RY 500kV
Changed to I/S date of 2012
2010 WW-RY 230kV
Changed to I/S date of TBD
2012 Gila Bend-TS8 230kV
Replaced with PV Hub-N.G. 500kV
June 6, th BTA

6. Changes from 2004 to 2006 Project Status 2013 WW-ES 230kV
Changed to I/S date of TBD
TBD Mazatzal 345/69kV
Changed to I/S date of 2011
2009 VV1 500/69kV
New Project
2010 TS9-PP 500kV
2012 N.G.-TS8 230kV
TBD Yucca-TS8 230kV
TBD SR-Pinal South 230kV
June 6, th BTA

7. Conceptual Projects TransWest Express
Transmission from Wyoming to Arizona and/or southern Nevada
Access coal and wind resources in Wyoming
Three AC alternatives
Looking at 500kV and 765kV options
One DC alternative
Developing through open stakeholder process
Compliments other planned projects
Cost range $2B-$5B
June 6, th BTA

8. Conceptual Projects: TransWest Express Project
June 6, th BTA

9. Conceptual Projects 230kV west of White Tank Mountains
Large developments planned for the area immediately to the west of the White Tank Mountains
230kV line(s) between TS5 substation and Buckeye substation
Working with developers, gov’t agencies, and any identified stakeholders to stay ahead of the growth.
June 6, th BTA

10. PHOENIX METROPOLITAN AREA TRANSMISSION PLANS 2006-2015
ALEXANDER
J/O APS/SRP
2010
AVERY
2009
To Prescott
GAVILAN PEAK W A P
2 - Circuits
345KV TO
GLEN
CANYON
(WAPA)
CHOLLA
PHOENIX METROPOLITAN AREA
TRANSMISSION PLANS
TS6
Transmission Planning
GLENDALE
APS EXISTING 500KV LINES
APS EXISTING 345KV LINES
APS EXISTING 230KV LINES
UNDERGROUND
APS PLANNED LINES
230KV
500KV
230KV SUBSTATION (EXISTING)
230KV SUBSTATION (FUTURE)
GENERATING SITE &
230KV SUBSTATION
JOINT OWNSHIP
OTHER COMPANY LINES
J/O
CAREFREE HWY. T B D ( S R )
BETHANY HOME RD.
Substations locations and line routings are approximate
345KV 2 1
TBD
SURPRISE
AGUA
FRIA
EL SOL
DEER
VALLEY
RUDD
TO PALO VERDE
WEST
PHOENIX
2007
PALM VALLEY
2010
2012
TS2
TS1
2009
WESTWING
LIBERTY/TS4
BUCKEYE TO
GILA BEND
To Navajo W A P
PALO
VERDE
TS5
500KV
To New
Waddell
WHITE TANKS
(APS)
2009
2010 TO
PALO
VERDE
500kv
J/O L I T C H F E D R .
Raceway P M A
TBD
BELL RD.
I - 10 FWY.
BASELINE RD.. I - 1 7 F W Y .
SUPERSTITION FWY.
MCDONALD RD.
PINNACLE
PEAK
CACTUS
OCOTILLO
KYRENE
500kV
TO JOJOBA
KNOX
(SRP)
TO BROWNING
TO SANTA ROSA
REACH
LONE PEAK
SUNNYSLOPE
MEADOWBROOK
LINCOLN ST.
COUNTRY CLUB
2010
J/O
TBD
SRP
SRP W Y . K P Y E L A L V N S U
June 6, th BTA