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

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

2 APS EHV & OUTER DIVISION 115/230 KV TRANSMISSION PLANS PAGE CRYSTAL NAVAJO FOUR CORNERS CALIF. MOENKOPI 345KV MEAD / MARKETPLACE SELIGMAN To GLEN CANYON () ROUND VALLEY BAGDAD PALO VERDE- HASSAYAMPA WILLOW LAKE PRESCOTT 2012 YAVAPAI () RACEWAY TS5 VERDE VV1 FLAGSTAFF FLAGSTAFF (APS) () GAVILAN PEAK COCONINO 2 circuits PREACHER CANYON FLAGSTAFF () 230KV MAZATZAL WEST 2012 WING PINNACLE PHOENIX PEAK LIBERTY RUDD KYRENE CHOLLA SECOND KNOLL (SRP) CORONADO CALIF. N.GILA YUMA 2012 REDHAWK GILA RIVER/ PANDA GILA BEND JOJOBA SANTA ROSA KNOX DESERT BASIN CASA GRANDE YUCCA LEGEND EXISTING 500 KV LINES EXISTING 345 KV LINES EXISTING 230 KV LINES EXISTING 115 KV LINES PLANNED LINES PLANNED 345KV LINES PLANNED 230KV LINES PLANNED 115KV LINES 115KV & ABOVE SUBSTATION (EXISTING) 230KV & ABOVE SUBSTATION (FUTURE) POWER PLANT SAGUARO ORACLE JUNCTION June 6, th BTA JOINT OWNSHIP Substation locations and line routings depict an electrical connection only and 2 do notreflect any assumed physical locations or routing. TAT MOMOLI NUCLEAR POWER PLANT TUCSON NORTH SAN MANUEL ADAMS MURAL 12/1/05 Transmission Planning

3 To New Waddell To Navajo PHOENIX METROPOLITAN AREA TRANSMISSION PLANS To Prescott Raceway GAVILAN PEAK AVERY CAREFREE HWY. 500kv (SRP) PIMA RD. GLEN CANYON () 345KV CHOLLA TS5 PALO VERDE PALO VERDE BELL RD. TS1 WESTWING SURPRISE SRP DEER VALLEY I-17FWY. TS6 SRP APS/SRP LONE PEAK REACH 2 - Circuits 2 - Circuits PINNACLE PEAK CACTUS TS LITCHFIELD RD. EL SOL AGUA FRIA GLENDALE I-17FWY. ALEXANDER SUNNYSLOPE BUCKEYE BETHANY HOME RD. PALM VALLEY 2007 WHITE TANKS (APS) I - 10 FWY. COUNTRY CLUB MEADOWBROOK MCDONALD RD. GILA BEND LIBERTY/TS4 PALO VERDE 2007 RUDD BASELINE RD.. APS EXISTING LINES APS EXISTING 345KV LINES APS EXISTING 230KV LINES UNDERGROUND APS PLANNED LINES 230KV 345KV WEST PHOENIX LINCOLN ST. I - 10 FWY. 230KV SUBSTATION (EXISTING) 230KV SUBSTATION (FUTURE) GENERATING SITE & 230KV SUBSTATION JOINT OWNSHIP OTHER COMPANY LINES Substations locations and line routings are approximate June 6, th BTA 3 I-10FWY. KYRENE KNOX (SRP) 500kV JOJOBA SANTA ROSA OCOTILLO SUPERSTITION FWY. BASELINE RD.. BROWNING 500kV Transmission Planning

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

5 Changes from 2004 to 2006 Project 2007 TS5-TS1 230kV 2008 TS1-TS2-Palm Valley 230kV w/ts2 I/S of RY-AV 230kV PP-TS6-AV 230kV Second Knoll 500/69kV TS5-RY 500kV WW-RY 230kV 2012 Gila Bend-TS8 230kV Status Changed to I/S date of Changed to I/S date of w/ts2 I/S date of 2011 Changed to I/S date of Changed to I/S date of Interconnect moved from CO-SK line to CO-CH line Changed to I/S date of 2012 Changed to I/S date of Replaced with PV Hub-N.G. 500kV June 6, th BTA 5

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

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 7

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

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 9

10 To New Waddell Raceway To Navajo PHOENIX METROPOLITAN AREA TRANSMISSION PLANS To Prescott GAVILAN PEAK AVERY CAREFREE HWY. 500kv (SRP) PIMA RD. GLEN CANYON () 345KV CHOLLA PALO VERDE TS5 PALO VERDE TS1 WESTWING SRP I-17FWY. TS6 SRP REACH 2 - Circuits 2 - Circuits PINNACLE PEAK SUN VALLEY PKWY. BELL RD. BETHANY HOME RD. BUCKEYE GILA BEND LIBERTY/TS4 PALO VERDE TS PALM VALLEY SURPRISE LITCHFIELDRD. EL SOL RUDD BASELINE RD.. AGUA FRIA WHITE TANKS (APS) APS EXISTING LINES APS EXISTING 345KV LINES APS EXISTING 230KV LINES UNDERGROUND APS PLANNED LINES 230KV 345KV DEER VALLEY GLENDALE I - 10 FWY. WEST PHOENIX I-17FWY. APS/SRP ALEXANDER COUNTRY CLUB LINCOLN ST. I - 10 FWY. 230KV SUBSTATION (EXISTING) 230KV SUBSTATION (FUTURE) GENERATING SITE & 230KV SUBSTATION JOINT OWNSHIP OTHER COMPANY LINES LONE PEAK SUNNYSLOPE MEADOWBROOK Substations locations and line routings are approximate June 6, th BTA 10 I -10FWY. KYRENE KNOX (SRP) 500kV JOJOBA SANTA ROSA CACTUS MCDONALD RD. OCOTILLO SUPERSTITION FWY. BASELINE RD.. BROWNING 500kV Transmission Planning

10/02/2017 Active Queue list

10/02/2017 Active Queue list 196 500 kv 101 MW Wind 60 MW Solar Moenkopi- Coconino County, AZ Yavapai line 09/2017 219 634.00 MW Maricopa County, AZ 225 200 MW Maricopa County AZ 227 500 MW Yuma County, AZ 229 50 MW Maricopa County,