2005 Pinnacle West Capital Corporation Special Open Meeting of the Arizona Corporation Commission...

2005 Pinnacle West Capital Corporation

SpecialOpen Meeting of the Arizona Corporation Commission2005 Summer Assessment

March 18, 2005

Arizona Public Service Company

Steve Wheeler – Executive Vice President

Jan H. Bennett – Vice President, Customer Service

Cary B. Deise – Director, Transmission Operations and Planning

2

OverviewOverview

Westwing Update

Load/Resources Adequacy

Transmission Adequacy

Planned Maintenance Activities

Contingency Planning

Coordination/Training

Future Plans

Conclusions

Westwing Update

Load/Resources Adequacy


Planned Maintenance Activities


Coordination/Training

Future Plans

Conclusions

3

Westwing Update

Jan Bennett

Westwing Update

Jan Bennett

4

Original ScheduleOriginal Schedule

One transformer scheduled to arrive each week starting March 30th

T-1 bank scheduled to be back in service before summer peak

Replacement of BPA unit scheduled to follow T-1 installation

Replacement of spare to follow BPA replacement

One transformer scheduled to arrive each week starting March 30th

T-1 bank scheduled to be back in service before summer peak

Replacement of BPA unit scheduled to follow T-1 installation

Replacement of spare to follow BPA replacement

5

Issue IdentifiedIssue Identified

The schedule has been revised

First two of seven transformers did not pass initial testing

Corrections required before units could be shipped

Manufacturer was on schedule prior to the initial test results

Continuing to work with manufacturer on revised schedule

The schedule has been revised

First two of seven transformers did not pass initial testing

Corrections required before units could be shipped

Manufacturer was on schedule prior to the initial test results

Continuing to work with manufacturer on revised schedule

6

Revised ScheduleRevised Schedule

Mid-June BPA replacement unit commissioned

Mid-July The T-1 Bank commissioned

By year-end The original two transformers in the T-4 Bank and the spare unit will be in service

- Removed units will become spares

- Sale pending on BPA unit

Mid-June BPA replacement unit commissioned

Mid-July The T-1 Bank commissioned

By year-end The original two transformers in the T-4 Bank and the spare unit will be in service

- Removed units will become spares

- Sale pending on BPA unit

7

The IssueThe Issue

Gassing occurred during testing that indicates a hot spot Results are similar for both units Unit One has been un-tanked

All connections inspected All internal components inspected Tanks shunts removed

Problem has been identified and corrections are being made to all units

Consultation with Jim Templeton on test procedures and corrective action

Gassing occurred during testing that indicates a hot spot Results are similar for both units Unit One has been un-tanked

All connections inspected All internal components inspected Tanks shunts removed

Problem has been identified and corrections are being made to all units

Consultation with Jim Templeton on test procedures and corrective action

8

The IssueThe Issue

9

Actions TakenActions Taken

APS and SRP sent technical teams to Canada to work with ABB

Notified all owners

Consulted with independent experts on the issue

Made ABB aware of the critical need for this equipment

APS and SRP sent technical teams to Canada to work with ABB

Notified all owners

Consulted with independent experts on the issue

Made ABB aware of the critical need for this equipment

10

Next StepsNext Steps

Corrections will be made first to units one and five

Unit one has been un-tanked

Unit five is yet to be tanked

Allows for quickest delivery of one unit to replace BPA unit

Corrections will be made first to units one and five

Unit one has been un-tanked

Unit five is yet to be tanked

Allows for quickest delivery of one unit to replace BPA unit

11

SummarySummary

With the replacement of the BPA transformer we will have

adequate capacity to meet our load under expected

conditions

Full capacity and redundancy will be restored with the

installation of the new T-1 bank

The problem has been identified and corrections are

being made

We do not anticipate any voluntary or involuntary curtailment

of customer load this summer

ABB is working diligently to remedy the problem

With the replacement of the BPA transformer we will have

adequate capacity to meet our load under expected

conditions

Full capacity and redundancy will be restored with the

installation of the new T-1 bank

The problem has been identified and corrections are

being made

We do not anticipate any voluntary or involuntary curtailment

of customer load this summer

ABB is working diligently to remedy the problem

12

Summer Preparedness

Cary Deise

Summer Preparedness

Cary Deise

13

312 MW

2-Xfmr Banks1-BPA XfmrReconfigured

11,172 MW

2005

1,240 MW

3-Xfmr Banks

12,100 MW

2005

530 MW

2-Xfmr Banks1-New XfmrNormal

11,390 MW

2005

2-Xfmr Banks1-BPA XfmrReconfigured

10,800 MW

2004

10,003 MW 2004 Valley Peak Load

Valley Maximum Load Serving CapabilityValley Maximum Load Serving Capability

10,860 MWForecast 2005Valley Peak

Westwing Update

6,000

7,000

8,000

9,000

10,000

11,000

12,000

MW

14

APS Peak Load ForecastAPS Peak Load Forecast

6954 MW

2005 Forecast

6402 MW

2004Actual

Loads/Resources Adequacy

8.6%

Phoenix is the second fastest-growing metropolitan area in U.S.

Adding 160 APS customers every

day

15

FuelFuel

Nuclear Full requirements under contract.

Coal

Cholla Current inventory and contract commitments

provide adequate coal for the projected 2005 burn.

43 days of inventory on the ground.

Nuclear Full requirements under contract.

Coal

Cholla Current inventory and contract commitments

provide adequate coal for the projected 2005 burn.

43 days of inventory on the ground.


16

Coal (cont.)

Four Corners Mine mouth plant with full supply contract in

effect. 30 days of inventory on the ground by May.

Gas 85% of supply is under contract Firm transportation contracts with EPNG in effect. Fuel oil back-up at the Yucca, West Phoenix and

Saguaro Plants.

Coal (cont.)

Four Corners Mine mouth plant with full supply contract in

effect. 30 days of inventory on the ground by May.

Gas 85% of supply is under contract Firm transportation contracts with EPNG in effect. Fuel oil back-up at the Yucca, West Phoenix and

Saguaro Plants.

Fuel, continuedFuel, continued


17

APS Resources – Existing GenerationAPS Resources – Existing Generation

Fuel Type Capacity - MW

Nuclear 1107

Coal 1725

Gas 1054

Oil 70

Other 5

Total 3961


18

Resources – Existing PWEC/OtherResources – Existing PWEC/Other

APS Committed Capacity – MW

Redhawk 1020

Saguaro 76

West Phoenix 640

Sundance 325

Total 2061

Plant


19

ResourcesResources

Generation 2005 (MW)

Existing Generation 3961 PWEC/Other 2061

Subtotal 6022

Long-term ContractsPacificorp Exchange 480SRP 364

Subtotal 844

Market Contracts 900

Total Resources 7766

Generation 2005 (MW)

Existing Generation 3961 PWEC/Other 2061

Subtotal 6022

Long-term ContractsPacificorp Exchange 480SRP 364

Subtotal 844

Market Contracts 900

Total Resources 7766


20

APS System Load and ResourcesAPS System Load and Resources

6954 MW

7766 MW

5000

5500

6000

6500

7000

7500

8000

Resources Peak Load Forecast

2005

MW

6954 MW

7766 MW

5000

5500

6000

6500

7000

7500

8000

Resources Peak Load Forecast

2005

MW

812 MW


21

Substation Transformers Substation Transformers

NEW Xfmr Banks

69/12kV 15

115/69kV 1

230/69kV 1

500/69kV 1

UPGRADED

69/12kV 8

230/69kV 5

345/230kV 1

Total 32

NEW Xfmr Banks

69/12kV 15

115/69kV 1

230/69kV 1

500/69kV 1

UPGRADED

69/12kV 8

230/69kV 5

345/230kV 1

Total 32


22

Transmission LinesTransmission Lines

Line Sections

New

69kV 4

Upgraded

69kV 9

Line Sections

New

69kV 4

Upgraded

69kV 9


23

APS EHV SystemTransmission Capacity less wheeling obligations

500kV

345kV

N.Gila

Kyrene

FourCorners

Palo Verde

Westwing

Yavapai

PinnaclePeak

Cholla

Saguaro

Moenkopi

Navajo

Mead

236 MW

559 MW

315 MW

782 MW

1175 MW

615 MW

1683 MW

2380 MW1107 MW

140 MW310 MW

Rudd

Jojoba

GilaRiver

Generation CapacityTransmission Capacity


24

APS EHV System

4000

4200

4400

4600

4800

5000

5200

5400

Total Transmission Remote Resouces/Purchases

MW

4000

4200

4400

4600

4800

5000

5200

5400

Total Transmission Remote Resouces/Purchases

MW

5248 MW

4969 MW

Tx to Load = 4998 MW

Purch Tx = 250 MW

279 MW


25

Yuma Maximum Load Serving CapabilityYuma Maximum Load Serving Capability

375 MW Forecasted Peak

60 MW

60 MW

2004 Peak 347 MW


435 MW

375 MW

100

150

200

250

300

350

400

450

2004 2005

MW Generation&

Transmission

26

APS Planned Maintenance Scheduled to be completed by May 31: Palo Verde 2 & 3 Cholla 2 Navajo 1 Four Corners 1 and 5 W. Phoenix Combined Cycle 1 – 3 and CT 1 & 2 Saguaro Steam 1 & 2 and CT 1 & 2 Yucca CT 1-4 Ocotillo Steam 1 & 2 and CT 1 & 2 Douglas CT

GenerationGenerationPlanned Maintenance

27

TransmissionTransmission

Key lines/substations on schedule

Special emphasis on critical transformers

Tree trimming in northern area due to

damage from snow storms

Key lines/substations on schedule

Special emphasis on critical transformers

Tree trimming in northern area due to

damage from snow storms

Planned Maintenance

28


Jan Bennett


Jan Bennett

29

Contingency PlanningContingency Planning

Updated Load Curtailment Plans will be filed with ACC by June 1, 2005

Essential Critical Major-use customers/other with notice Other

EMS Load Shedding program annual update by May 16, 2005

Coordination with emergency organizations


30

Emergency EquipmentEmergency Equipment

Mobile 69/12kV Transformers

Emergency Towers Two Lindsey towers

Mobile 69/12kV Transformers

Emergency Towers Two Lindsey towers

Location Xfmrs

Phoenix 4

Flagstaff 2

Yuma 1

Total 7


31

Training & Drills

Cary Deise

Training & Drills

Cary Deise

32

Training & DrillsTraining & Drills

Regional Black Start Drill March

Usage of Load Curtailment tools April

Summer Studies May

Transmission Path Operations May

Emergency Operations March-June

Power Simulator

NERC policies addressing March-June

emergency operations

DOE simulator training March-Oct.

Regional Black Start Drill March

Usage of Load Curtailment tools April

Summer Studies May

Transmission Path Operations May

Emergency Operations March-June

Power Simulator

NERC policies addressing March-June

emergency operations

DOE simulator training March-Oct.

Coordination / Training

33

EHV TransmissionEHV Transmission

SELIGMAN

ROUNDVALLEY

POWER PLANT

115KV & ABOVE SUBSTATION (EXISTING)

230KV & ABOVE SUBSTATION (FUTURE)

JOINT OWNSHIPJ/O

LEGEND

NORTH

ADAMS

MURAL

SAN MANUELORACLEJUNCTION

SAGUARO

N.GILA

YUMA

PALO VERDE-HASSAYAMPA

YUCCA

GILA BEND

500KVJ/O

TO CALIF.500KV

REDHAWK

JOJOBA

GILA RIVER

RUDD

LIBERTY

KYRENE

SANTAROSA

DESERTBASIN

TBDWESTWING

500KV J/O

BAGDAD

YAVAPAI VERDE

2010

FLAGSTAFF

PRESCOTT

PINNACLEPEAK

PREACHERCANYON

CHOLLA

230KV

345KVTO CALIF.

500KV J/O

500KV J/O

TOCRYSTAL

TO MEAD /MARKETPLACE

MOENKOPI

NAVAJO

PAGE

FOURCORNERS

500KV

TUCSON

PHOENIXLIBERTY

1/18/05Transmission Planning

2007

2012J/O

2007

PINALWEST

MAZATZAL

COCONINO

Substation locations and line routings depict an electrical connection only anddo not reflect any assumed physical locations or routing.

CASAGRANDE

TAT MOMOLI

KNOX

TS52007

GAVILANPEAK

2005

WAPA

FLAGSTAFF(WAPA)

To GLENCANYON (WAPA)

(WA

PA

)

SECONDKNOLL

2009

2007

RACEWAY

EXISTING 500 KV LINESEXISTING 345 KV LINES

EXISTING 230 KV LINES

EXISTING 115 KV LINES

PLANNED 500KV LINESNUCLEAR POWER PLANT

2 circuits

WILLOWLAKE

PLANNED 345KV LINES

PLANNED 230KV LINES

PLANNED 115KV LINES

2010

2007

CORONADO(SRP)

FLAGSTAFF(APS)

2009

2011

2012

TBD

TBD

BROWNING

Future Plans

34

West Valley 230kVWest Valley 230kV

BELL RD.

BETHANY HOME RD.

I - 10 FWY.

BASELINE RD..

LIT

CH

FIE

LD

R

D.

I-1

7 F

WY

.I-

17 F

WY

.

APS

GLENDALE

APS

TBDSURPRISE

AGUA FRIA

EL SOL

DEER VALLEY

RUDD

TO PALO VERDE

WESTPHOENIX

APSSRP

AVERY2008

2012 (J/O)

2008

2006TS3

2006

2008

2012TS2

2008

TOPALO VERDE

TS12007

2-Circuits

500KV

WESTWING

2007

LIBERTY/TS4


To TS6To Pinnacle

Peak

To Lincoln St.

To CountryClub

To Alexander

To Alexander

APS EXISTING 500KV LINES

UNDERGROUND

APS PLANNED LINES230KV

500KV

230KV SUBSTATION (EXISTING)

230KV SUBSTATION (FUTURE)

GENERATING SITE &230KV SUBSTATION

JOINT OWNSHIP

SERVICE TERRITORY BOUNDARYBETWEEN APS & SRP

OTHER COMPANY LINES

J/O

Carefree Hwy.

RACEWAY

BUCKEYE

TOGILA RIVER

To Navajo

500kvJ/O

(WAPA)

TOPALO VERDE

2010

500KV

500KV

To NewWaddell

APS EXISTING 345KV LINESAPS EXISTING 230KV LINES

345KV

2009

WHITE TANKS (APS)

2010

TS52007

APSSRP

SRPTBD

TBD

TBD

(SRP)TBD

To PinnaclePeak

2007


Future Plans

35

East Valley 230kVEast Valley 230kV

BELL RD.

I - 10 FWY.

BASELINE RD..

I-17

FWY.

I-17

FW

Y.

I - 10 FWY.I-

10F

WY

.

SUPERSTITION FWY.

BASELINE RD..

MCDONALD RD.

PINNACLEPEAK

CACTUS

OCOTILLO

KYRENE

500kV

TO JOJOBA

KNOX(SRP)

TO BROWNING500kV

TO SANTA ROSA

REACH

LONE PEAK

SUNNYSLOPE

MEADOWBROOK

LINCOLN ST.

COUNTRY CLUB

APS

ALEXANDER

J/O APS/SRP

APS SRP2009

AVERY2008

To Prescott

2005GAVILAN PEAK

(WAPA)

2 - Circuits2 - Circuits

345KV

TOGLEN

CANYON(WAPA)

TOCHOLLA

PI M

AR

D.

TS62009


To DeerValley

To DeerValley

To AguaFria

ToGlendale

To WestPhoenix

APS EXISTING 500KV LINESAPS EXISTING 345KV LINESAPS EXISTING 230KV LINES

UNDERGROUND

APS PLANNED LINES230KV

500KV

230KV SUBSTATION (EXISTING)

230KV SUBSTATION (FUTURE)

GENERATING SITE &230KV SUBSTATION

JOINT OWNSHIP

SERVICE TERRITORY BOUNDARYBETWEEN APS & SRPOTHER COMPANY LINES

J/O

CAREFREE HWY.

2012

BETHANY HOME RD.

345KV

2009

J/O

(SRP)

(SRP)

TORACEWAY

NE32010

(SR

P)

TBD


Future Plans

36

Conclusions

Steve Wheeler

Conclusions

Steve Wheeler

37

ConclusionsConclusions

Adequate resources to meet load and reserve requirements

Sufficient transmission to import remote generation and purchases

Plans in-place to respond to extreme conditions

Coordination/training has been established with various State and local agencies

Anticipate meeting customers needs

Adequate resources to meet load and reserve requirements

Sufficient transmission to import remote generation and purchases

Plans in-place to respond to extreme conditions

Coordination/training has been established with various State and local agencies

Anticipate meeting customers needs

2005 Pinnacle West Capital Corporation Special Open Meeting of the Arizona Corporation Commission...

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