11
Arizona RenewableArizona RenewableTransmission Task ForceTransmission Task Force
Chairman of SWAT RTTFChairman of SWAT RTTF
Peter KrzykosPeter Krzykos
Phoenix , May5. 2009Phoenix , May5. 2009
22
Arizona Corporation Commission (ACC) Arizona Corporation Commission (ACC) Biannual Transmission Assessment (BTA) Biannual Transmission Assessment (BTA)
BTA Order (BTA Order (Decision No. 69389)Decision No. 69389)
• Assess renewable energy potential• Develop a plan to integrate renewable
energy resources into the Arizona transmission system – ATC assessment– Potential transmission configuration
• Use the Southwest Area Transmission (SWAT) stakeholder process to address BTA Order
33
SWAT RTTFSWAT RTTFPart 1 Part 1 -- Resource ProjectionResource Projection
A renewable resource map displaying areas where resources development potentially could occur and
was developed with input from three specific areasThe Arizona Renewable Energy Assessment recently prepared for APS, SRP and TEP by Black and Veatch (2007)
The queue for renewable resource in Arizona requesting potential interconnection (as of October 15th 2007)
Stakeholder/developer input on prospective development opportunities.
The # of MW display on the map is the highest out of the three inputs.
44
Black & Veatch SummaryProjected Resource Locations
Black & Veatch SummaryProjected Resource Locations
Geothermal/Clifton – 35MWGeothermal/Clifton – 35MW
Solar CSP/Yuma – 800MW Solar CSP/Yuma – 800MW
Biomass/Biogas – 60MW (22 sites)Biomass/Biogas – 60MW (22 sites)
Wind/Project KS – 18MWWind/Project KS – 18MW
Hydro – 82MW (7 sites, 90% @ GC)Hydro – 82MW (7 sites, 90% @ GC)
Solar CSP/Stoval – 1,900MWSolar CSP/Stoval – 1,900MW
Solar CSP/Phoenix – 800MW Solar CSP/Phoenix – 800MW
Solar CSP/Tucson – 800MWSolar CSP/Tucson – 800MW
Wind/Project RS – 140MWWind/Project RS – 140MW
Wind/Project BR – 158MWWind/Project BR – 158MW
Wind/Project CV – 597MW Wind/Project CV – 597MW
Wind/Project BH – 46MWWind/Project BH – 46MW
Wind/Project GP – 31MWWind/Project GP – 31MW
1
2
3
4
5
6
7
8
9
10
11
12
131
2
3
4
567
8 9
10
12
11
11
13
September 21st 2007
55
B & V Summary FiltersB & V Summary Filters
• Solar Thermal– Equipment availability/supply chain– Development timelines/engineering support– Project economics– Proximity to adequate transmission – Land availability/terrain slope/proximity to sensitive areas
• Wind– Equipment availability/supply chain– Class/Capacity factor– Project economics– Proximity to adequate transmission
– Proximity to federal/environmental sensitive areas
66
Arizona Renewable Resource QueueArizona Renewable Resource Queue
WindImperialGoldmine Tap Substation65.12008WAPAW3
WindMohavePeacock Substation5002008WAPAW4
As of 10/15/20073420.6Total
Wind100Navajo NationN1
WindMohaveMead - Davis 230 kV Line3002008WAPAW2
WindCoconinoTap on 345kV Glen Canyon-Pinnacle Peak5002008WAPAW1
SolarYumaNorth Gila Sub4002010APSA10
SolarMaricopaGila Bend3002010APSA9
SolarMaricopaPanda Liberty line1102011APSA8
SolarMaricopaHarquahala Jnc1102011APSA7
WindCochiseAdams - Mural1002010APSA6
WindCoconinocholla - show250.52009APSA5
WindCoconinoAshofork - Pollock2702008APSA4
BiomassCoconinoCholla zeniff222007APSA3
WindCoconinoCholla Show1282008APSA2
WindCoconinoCholla - Coconino602008APSA1
WindSt Johns Co-Spr952007TEPT4
WindMohaveDolan Springs Sub152005TEPT3
WindMohaveDolan Springs Sub152008TEPT2
WindMohaveDolan Springs Sub802005TEPT1
TypeCountyPOIMW Size CODCompanyCode
77
Arizona Renewable Resource QueueArizona Renewable Resource Queue
500W4
100N1
65.1W3
300W2
500W1
400A10
300A9
110A8
110A7
100A6
250.5A5
270A4
22A3
128A2
60A1
95T4
15T3
15T2
80T1
MW Size Code
NEVADA
CALIFORNIA
345
KV
345 KV
CALIFORNIA
ARIZONA
345 KV
345
KV
500
KV
345 KV
345
KV
345
KV
345 K
V
500
KV
500
KV
500
KV 34
5
KV
345
KV
345
KV
NEW
MEXICO
ARIZONA
230
KV
500
KV
5 00 KV
345
KV
As of 10/15/2007
88
Potential Arizona Renewable ResourcesPotential Arizona Renewable Resources
NEVADA
CALIFO
RNIA
345 K
V
99
Quality of Wind Resources Quality of Wind Resources In ArizonaIn Arizona *Developed by DOE and NREL
• At 50m elevation, Class 4 or higher is typically used for utility scale wind generation (NREL).
• At 80m elevation, Class 3 areas could have higher wind power class because of possible wind shear (NREL)
• Arizona has predominately Class 3 or lower wind resources
Taken Directly from the United States Department of Energy website: http://www.eere.energy.gov/windandhydro/windpoweringamerica/maps_template.asp?stateab=az
1010
Quality of Solar Resources Quality of Solar Resources In ArizonaIn Arizona
• Potentially sensitive environmental lands, major urban areas, water features, and areas with slope >1% were excluded to identify those areas with the greatest potential for development. (NREL)
Taken Directly from NREL website: http://www.nrel.gov/csp/images/1pct_csp_az.jpg
1111
SWAT RTTFSWAT RTTFPart 2 Part 2 --ATC AssessmentATC Assessment
Available Transfer Capability (ATC) has been gathered for each utility in Arizona
ATC is a dynamic number that can change from day to day.
ATC is used to illustrate the current available transfer capacity of the Arizona transmission system.
1212
Arizona EHV Transmission ATC Arizona EHV Transmission ATC
Phoenix230 kVSystem
NavajoGlenCanyon
North Gila
PaloVerde
SilverKingKyrene
PinnaclePeakWestwing
Liberty
South
Saguaro
Vail
Greenlee
Cholla
Moenkopi
PreacherCanyon
McCullough
Eldorado
Mead
Tucson138 kVSystem
Devers
ImperialValley
Coronado
Four Corners
Shiprock
Tortolito
102
372
356
125556
0
0
0
Marketplace0
0 0
75
0
BrowningRudd
787
0
Springerville
Transmission Line
Voltage Level500 kV 345 kV
ATC in MW
(as of June 2007)
1313
SWAT RTTFSWAT RTTFPart 3 Part 3 -- Transmission SystemTransmission System
Mapping was developed which represents the potential transmission lines that would be necessary if all of the renewable resources were to be developed in Arizona.
Included in the map are: existing transmission linesAPS, SRP and TEP 10 year plansother WECC Projects in Phase II processpotential transmission lines
1414
Preliminary RenewablePreliminary RenewableTransmission ConfigurationTransmission Configuration
• Three engineering groups were formed to brainstorm possible future transmission scenarios in the Arizona
• Each of the three groups independently created a transmission map
• A final transmission configuration was approved in the stakeholder meetings
1515
Group AGroup A
NEVADA
CALIFO
RNIA
345
KV
345 KV
CALIFORNIA
ARIZONA
345 KV
345
KV
500
KV
345 KV
345
KV
345
KV
345 K
V
500 K
V
500
KV
500
KV 345
KV
345
KV
345
KV
NEW
MEXICO
ARIZONA
230KV
230
KV
500
KV
500 KV
345
KV
1616
Group BGroup B
SOLAR RESOURCE
WIND RESOURCE
DEVERS
MIGUEL
IMPERIAL
VALLEY
500 KV
NEVADA
CALIFORNIA
500 KV
ELDORADO
MEAD
MOHAVE
500 KV
230KV
TO SIGURD
(PACE)
GLEN CANYON
345
KV
345 KV
CALIFORNIA
ARIZONA
NORTH
GILA
YUMA
ARIZONA
MEXI CO
500 KV
345 KV
SOUTH 345 KV34
5 K
V
BICKNELL
SAGUARO
TORTOLITA
VAIL
LIBERTYPHOENIX
KYRENE
500 KV
500
KV
PINNACLE
PEAK
WESTWING
500 KV
500 KV
CHOLLA
CORONADO
345 KV
SPRINGERVILLE
345
KV
345
KV
345 K
V
PREACHER
CANYON
500
KV
COCONINO
500
KV
500
KV
500 KV
NAVAJO
MOENKOPI
345
KV
345KV
TO HUNGINGTON
(PACE)
345
KV
345 KV
230KV
TO CURECANTI
SHIPROCK
FOUR
CORNERS
SAN JUAN
345
KV
McKINLEY
NEW
MEXICO
COLORADOUTAH
ARIZONA
345 KV
McCULLOUGH
REDHAWKGILA
RIVER
GILA
BEND
JOJOBA
RUDD
YAVAPAI
PALO VERDE/HASSAYAMPA
GREEN LEE
230 KV TO
SWTC
TUCSO N
230KV
230KV
230 KV
230
KV
WILLOWLAKE
ROUNDVALLEY
SELIGMAN
POWER PLANT
SUBSTATION
500 KV500 KV
500 KV
500
KV
5 00 KV
CRYSTAL
CASAGRANDE
SILVER KING
SANTA ROSA
TAT MOMOLI
DESERT BASIN
TS5
RACEWAY
2012
2009
2012
2010
Winchester
PINAL WEST
BROWNING
PINAL SOUTH
345kv
345kv 345kv
345kv
DESERT ROCK
EASTLOOP
345kv
500kv
500kv
345
KV
APS PLANS
TEP PLANS
SRP PLANS
NEW GENERATION
PROPOSED SUBSTATION
PROPOSED LINE
500 kV
500 kV
230 kV
500 kV
345 kV230 kV
1717
Group CGroup C
SOLAR RESOURCE
WIND RESOURCE
DEVERS
MIGUEL
IMPERIAL
VALLEY
500 KV
NEVADA
CALIFORNIA
500 KV
ELDORADO
MEAD
MOHAVE
500 KV
230KV
TO SIGURD
(PACE)
GLEN CANYON
345
KV
345 KV
CALIFORNIA
ARIZONA
NORTH
GILA
YUMA
ARIZONA
MEXI CO
500 KV
345 KV
SOUTH 345 KV
345
KV
BICKNELL
SAGUARO
TORTOLITA
VAIL
LIBERTYPHOENIX
KYRENE
500 KV
500
KV
PINNACLE
PEAK
WESTWING
500 KV
500 KV
CHOLLA
CORONADO
345 KV
SPRINGERVILLE
345
KV
345
KV
345 K
V
PREACHER
CANYON
500
KV
COCONINO
500
KV
500
KV
500 KV
NAVAJO
MOENKOPI
345
KV
345KV
TO HUNGINGTON
(PACE)
345
KV
345 KV
230KV
TO CURECANTI
SHIPROCK
FOUR
CORNERS
SAN JUAN
345
KV
McKINLEY
NEW
MEXICO
COLORADOUTAH
ARIZONA
345 KV
McCULLOUGH
REDHAWKGILA
RIVER
GILA
BEND
JOJOBA
RUDD
YAVAPAI
PALO VERDE/HASSAYAMPA
GREEN LEE
230 KV TO
SWTC
TUCSO N
230KV
230KV
230 KV
230
KV
WILLOWLAKE
ROUNDVALLEY
SELIGMAN
POWER PLANT
SUBSTATION
500 KV500 KV
500 KV
500
KV
5 00 KV
CRYSTAL
CASAGRANDE
SILVER KING
SANTA ROSA
TAT MOMOLI
DESERT BASIN
TS5
RACEWAY
2012
2009
2012
2010
Winchester
PINAL WEST
BROWNING
PINAL SOUTH
345kv 345kv
345kv
DESERT ROCK
EASTLOOP
345kv
500kv
500kv
345
KV
APS PLANS
TEP PLANS
SRP PLANS
NEW GENERATION
PROPOSED SUBSTATION
PROPOSED LINE
500 kV
500 kV
500 kV
230 kV
PEACOCK
1818
Potential Configuration for Transmission to Serve All Available Potential Configuration for Transmission to Serve All Available Renewable Resources in ArizonaRenewable Resources in Arizona
345 K
V
1000 MW
1000 MW
500 MW
800 MW
1000 MW
1919
EstimatedEstimatedConstruction CostsConstruction Costs
SolarWindVoltage (kV)
21230 kV
65500 kV
Substation Additions
Solar
(miles)
Wind
(miles)
Voltage (kV)
62182230 kV
126315500 kV
Transmission Circuits
$430$1,070Transmission
Circuits
SolarWind
70$60Substation
Totals (Million)
$1,630Total
$500Solar
$1,130Wind
Totals
2020
Siting Considerations ofSiting Considerations ofRenewable Transmission SystemRenewable Transmission System
• Projects on federal land require National Environmental Policy Act (NEPA) compliance– 70% of Arizona land is federally-managed
– Studies range from Categorical Exclusion to Environmental Impact Statement or EIS (3 to 5 years or more)
• Projects in Arizona 100 MW or 115kV above require a CEC prior to construction and operation – Process can take 2 years or more and is typically conducted
when federal process is substantially complete
– 13% of Arizona land is State Trust Land and requires substantiallead time for right-of-way approval
• Numerous environmentally sensitive / restricted use areas throughout the state
2121
Long Range PlanningLong Range Planning
• APS Ten-Year Plan is evaluating projects beyond typical planning horizon
• Currently working with land management agencies to identify conceptual utility corridors to support renewable projects
• Participating in DOE, WestConnect, Western Governor’s Association, other corridor planning initiatives
2222
Potential renewable transmission routesPotential renewable transmission routes
2323
Technical StudyTechnical Study• 2025 is studied do to the 2025 Arizona Renewable Portfolio Standard (RPS)
requirement of 15% of energy demand to be served by renewable resources.
• Three study cases– Full potential
• 7757 MW of installed capacity• Approximately 18.5% energy* (exceeds 2025 RPS of 15%)
– Solar development Only• 4650 MW of installed capacity• Approximately 12% energy*
– Wind development Only• 3107 MW of installed capacity• Approximately 6.5% energy*
• Technical Study Evaluation– Powerflow analysis– Post transient analysis– Stability analysis
* Does not include energy efficiency programs and distributed energy, all values are estimates
2424
Power Flow Study AssumptionsPower Flow Study Assumptions
• Update the 2018 WECC full loop base case to form a 2025 case scenario• All 10 year plan transmission and generation projects in Arizona will be
implemented• Load pocket upgrades will be made to meet 2025 demand• All coal, nuclear, hydro, and RMR units will be online • Potential circuit parameters are based on projected mileage from the
siting/routing map• Series compensation of potential transmission circuits will be comparable to
existing series compensation on similar length paths – Flow-ability will be optimized in the EHV system using 30-60% series
compensation• Potential renewable generation will operate at:
– 1.04 p.u. voltage for 230kV installations– 1.06 p.u. voltage for 500/345 kV installations– 0.95 pf lag/lead
• The study will be performed for N-0, N-1 conditions following WECC/NERC criteria.
2525
Post Transient / Stability AssumptionsPost Transient / Stability Assumptions
• Post Transient– N-1 conditions and common corridor outages
– 1-3 minutes after disturbance
• Stability– Full loop WECC case
– Transient voltage and frequency are studied
– Damping of transient and dynamic oscillations will be observed
2626
SouthwestArea
Transmission
SWATSWAT
SWAT FootprintOne of the WestConnect Sub-Regional Planning
Groups
SWAT FootprintOne of the WestConnect Sub-Regional Planning
Groups
http://www.westconnect.com
2727
ATC (May/June 2008)ATC (May/June 2008)2008 ARIZONA – NEW MEXICO – SOUTHERN CALIFORNIA-NEVADA
AVAILABLE TRANSFER CAPABILITY
`
CCCCCOOOOOLLLLLOOOOORRRRRAAAAADDDDDOOOOOUUUUUTTTTTAAAAAHHHHH
NNNNNEEEEEVVVVVAAAAADDDDDAAAAA
CCCCCAAAAALLLLLIIIIIFFFFFOOOOORRRRRNNNNNIIIIIAAAAANNNNNEEEEEWWWWW MMMMMEEEEEXXXXXIIIIICCCCCOOOOO
AAAAARRRRRIIIIIZZZZZOOOOONNNNNAAAAA
MMMMMEEEEEXXXXXIIIIICCCCCOOOOO TTTTTEEEEEXXXXXAAAAASSSSS
ADELANTOTO
TOLUCATO
RINALDITO
VINCENT
SERRANO
TOMEXICO
TOMEXICO
LAS VEGAS -BOULDER CITY
INTERMOUNTAINPOWER PROJECT
TOSIGURD
PHOENIX
TUCSONVAIL
TOHUNTINGTON TO
LOST CANYON TORIFLE
BLACKWATER
MIRA LOMA
VALLEY
DEVERS
MIGUELIMPERIALVALLEY
TO IID
LUGO
MOHAVE
ELDORADOVICTORVILLE
GLEN CANYON
MEAD
NORTH GILA
PALO VERDEHub
WESTWING
KYRENE
SOUTH
CHOLLA
NAVAJOFOURCORNERS
PINNACLEPEAK
SPRINGERVILLE
SILVERKINGGREENLEE
TORTOLITA
SAGUARO
SHIPROCK
CORONADO
SAN JUAN
TAOSOJO
NORTON
B-A
GUADALUPESANDIA
(D.C. Terminal)
ESCALANTE
McKINLEY
AMBROSIA
WEST MESA
HIDALGOLUNA
DIABLO
ARROYO
CALIENTE
NEWMAN
AMRAD
EDDY COUNTY(D.C. TERMINAL)
GILA BEND
RUDD
JOJOBA
H ALLEN
TOSIGURD
FT. CHURCHHILLFRONTIER
GONDER
ANACONDA
TRACY / VALLEY ROAD/ MIRA LOMA
VALMY
FALCON
INTERMOUNTAINPOWER PROJECT
DIXIE VALLEY
TOCONTROL
TOHILLTOP
TOMIDPOINT
ATC = 0
SAN JUAN to FOUR CORNERS ATC = 183SHIPROCK to FOUR CORNERS ATC = 300SAN JUAN to SHIPROCK ATC = 176
ATC = 1286
PATH 47 ATC = 170
ATC = 0
ATC = 170
ATC = 112
ATC = 50
ATC = 160
PATH 48
ATC = 0
SUBSTATIONPOWER PLANT
ATC = 0
ATC = 85
ATC = 27
ATC = 167
ATC = 0
ATC = 0
ATC = 17
ATC = XXX* ATC TAKEN FROM CAISO OASIS. LOWEST HOURLY ATC FOR JUNE 2008 ATC in MWATC TAKEN FROM MAY 21ST 2008 WESTCONNECT ATC/TTC STAKEHOLDER WORKSHOPATC = XXX
* CANNOT OBTAIN ATC IN THE LONG TERM, ATC ONLY BOOKED THE DAY AHEAD
ATC = 0
ATC = 2402*
PV EAST: ATC = 703PV-RUDD: ATC = 0
ATC = 0*
ATC = 0
ATC = 0
ATC = 0
ATC = 275
ATC = 276
ATC = 383
ATC = 0
ATC = 0
ATC = 0*
ATC = 175
2828
Full BuildFull Build--outout
Lo ad Gen U t i l Gen Avai l Lo ad Gen U t il Gen Avai l
A rizo na 18631 26028 32505 21515 29735 33802 15.5%
C alif ornia 62070 51206 74156 73140 64401 82418 17.8%
C A w/ o PGE 35991 24821 38388 40798 32776 42895 13.4%
C o lo rad o 7413 6598 8841 9138 8663 12757 23.3%
N evada & Sier ra 8192 6940 6073 9111 7533 13001 11.2%
N ew M exico & El Paso 3678 3475 4701 4702 4283 5110 27.8%
St at e
2 0 0 8 2 0 18% Lo ad
Increase
AZ IID N M N V Tot al
W ind 5107 - 14787 1768 21662
So lar 4745 - 524 2108 7377
B iomass 40 - - - 40
Geot hermal 35 2000 - 456 2491
To t al 9927 2000 15311 4332 31570
2929
50% Build50% Build--outout
503 MW
Lo ad Gen U t il Gen A vail Load Gen U t i l Gen A vai l
A rizo na 18631 26028 32505 21515 29735 33802 15.5%
C alif ornia 62070 51206 74156 73140 64401 82418 17.8%
C A w/ o PGE 35991 24821 38388 40798 32776 42895 13.4%
C o lo rado 7413 6598 8841 9138 8663 12757 23.3%
N evada & Sier ra 8192 6940 6073 9111 7533 13001 11.2%
N ew M exico & El Paso 3678 3475 4701 4702 4283 5110 27.8%
St at e
2 0 0 8 2 0 18% Lo ad
Increase A Z IID NM N V Tot al
W ind 2554 - 7394 884 10832
So lar 2123 - 262 1054 3439
B iomass 20 - - - 20
Geot hermal 18 1000 - 228 1246
To t al 4715 1000 7656 2166 15537
3030
2009 ARIZONA RENEWABLES
SELIGMAN
ROUND VALLEY
POWER PLANT
115KV & ABOVE SUBSTATION
LEGEND
NORTH
ADAMS
MURAL
SAN MANUEL
ORACLEJUNCTION
SAGUARO
YUMA
PALO VERDE-HASSAYAMPA
YUCCA
TO CALIF.500KV
REDHAWK
JOJOBA
GILA RIVER/PANDA
RUDD
LIBERTY
SANTAROSA
DESERTBASIN
BAGDAD
YAVAPAI VERDE
PRESCOTT
PINNACLEPEAK
PREACHERCANYON
CHOLLA
TO CALIF.
TO CRYSTAL
TO MEAD /MARKETPLACE
MOENKOPI
NAVAJO
FOURCORNERS
TUCSON
3/09/09Transmission Planning
COCONINO
CASAGRANDE
TAT MOMOLI
KNOX
GAVILANPEAK
(WAPA)
500 KV LINES345 KV LINES230 KV LINES
115 KV LINES
NUCLEAR POWER PLANT
WILLOWLAKE
SUNDANCE
FLAGSTAFF
CORONADO
KYRENE
BROWNING
SILVERKING
HARQUAHALATO
DEVERS
22
WIND
27
BIOGAS
28
29
30
SOLAR
3133
34
35
36
37
3839
40
41
42
44
44b
45
4647 4849
51
53
54
56
57
58
5960
61
BIOMASS
62
1500MW
760MW
802MW
11MW
352MW
240MW
632MW
2138MW
730MW
WESTWING
43
State_EHV_Renewables1
GILA BENDN.GILA
3010MW
Active Generator Queue Listing
Future 500 KV LINES
00 Queue Number
44a
3131
Arizona Renewable Arizona Renewable Transmission Task ForceTransmission Task Force
Chairman of SWAT RTTFChairman of SWAT RTTF
Peter KrzykosPeter Krzykos
Phoenix , May5. 2009Phoenix , May5. 2009
