www.oatioasis.comAZPSAZPSdocsCBD-JB_ACCreport_1 by ert554898

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									      Special
      Open Meeting of the
      Arizona Corporation Commission
      2005 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




 2005 Pinnacle West Capital Corporation
Overview

   Westwing Update
   Load/Resources Adequacy
   Transmission Adequacy
   Planned Maintenance Activities
   Contingency Planning
   Coordination/Training
   Future Plans
   Conclusions
                                     2
Westwing Update
Jan Bennett




                  3
Original 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




                                                  4
Issue 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



                                                       5
Revised 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



                                                     6
The 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

                                                       7
The Issue




            8
Actions 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




                                                   9
Next 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




                                                      10
Summary

   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

                                                                    11
Summer Preparedness
Cary Deise




                      12
                                                                                            Westwing Update

Valley Maximum Load Serving Capability
                                                                        1,240 MW
                                                                               12,100 MW
     12,000                                        530 MW
                            312 MW
                                                            11,390 MW
                                       11,172 MW
                                                                                             10,860 MW
     11,000     10,800 MW                                                                   Forecast 2005
                                                                                             Valley Peak


     10,000
MW




                         10,003 MW
      9,000              2004 Valley
                         Peak Load

      8,000


      7,000


      6,000
                  2004                   2005                 2005                 2005
              2-Xfmr Banks       2-Xfmr Banks           2-Xfmr Banks         3-Xfmr Banks
              1-BPA Xfmr         1-BPA Xfmr             1-New Xfmr
              Reconfigured       Reconfigured           Normal
                                                                                                            13
                                        Loads/Resources Adequacy

APS Peak Load Forecast

                              6954 MW
                    8.6%
          6402 MW

                             Adding
                            160 APS
                           customers
                           every day



           2004               2005
          Actual             Forecast



   Phoenix is the second fastest-growing
         metropolitan area in U.S.
                                                              14
                                            Loads/Resources Adequacy

Fuel

   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.




                                                                  15
                                          Loads/Resources Adequacy

Fuel, continued

   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.
                                                                16
                            Loads/Resources Adequacy

APS Resources – Existing Generation

Fuel Type        Capacity - MW
Nuclear              1107
Coal                 1725
Gas                  1054
Oil                    70
Other                   5
Total                3961
                                                  17
                          Loads/Resources Adequacy

Resources – Existing PWEC/Other

Plant             APS Committed
                  Capacity – MW
Redhawk                1020
Saguaro                  76
West Phoenix            640
Sundance                325
Total                  2061
                                                18
                               Loads/Resources Adequacy

Resources

   Generation               2005 (MW)

       Existing Generation   3961
       PWEC/Other            2061

       Subtotal              6022

   Long-term Contracts
       Pacificorp Exchange   480
       SRP                   364
       Subtotal              844

   Market Contracts         900
   Total Resources          7766

                                                     19
                                               Loads/Resources Adequacy

APS System Load and Resources

      8000   7766 MW

      7500
                         812 MW
                                      6954 MW
      7000
 MW




      6500

      6000

      5500

      5000
             Resources            Peak Load Forecast
                           2005


                                                                     20
                             Transmission Adequacy

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
                                                21
                           Transmission Adequacy

Transmission Lines

           Line Sections
New
   69kV       4



Upgraded
   69kV       9




                                              22
                                                                                                Transmission Adequacy
APS EHV System
Transmission Capacity less wheeling obligations


                                                               Navajo
                                                               315 MW                            Four
                                                                                                Corners
                                                                                                 782 MW
                      Mead
                                                              559 MW

                                                Moenkopi
                                                                                      1175 MW


                                    236 MW                                        Cholla
                                             Yavapai                              615 MW

                                                                1683 MW

  Transmission Capacity
  Generation Capacity

  500kV
  345kV                                                     Pinnacle
                                                   Westwing Peak
                                                    Rudd
                                   Palo Verde        2380 MW Kyrene
                                   1107 MW
                                                     Jojoba


                                    140 MW         Gila                 Saguaro
                                                   River                310 MW

                          N.Gila




                                                                                                                   23
                                                                 Transmission Adequacy

APS EHV System


     5400
              5248 MW
     5200     Purch Tx           279 MW
              = 250 MW                           4969 MW
     5000

     4800
MW




             Tx to Load
     4600    = 4998 MW

     4400

     4200

     4000
            Total Transmission            Remote Resouces/Purchases



                                                                                    24
                                                        Transmission Adequacy

Yuma Maximum Load Serving Capability


     450                                      435 MW
                                      60 MW
                                                       60 MW
     400               375 MW                                  375 MW
                                                               Forecasted
     350   2004 Peak
           347 MW
                                                               Peak


     300
MW




                        Generation
                            &
                       Transmission
     250
     200
     150
     100
                         2004                  2005
                                                                            25
                                             Planned Maintenance

Generation

   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
                                                              26
                                        Planned Maintenance

Transmission

   Key lines/substations on schedule

   Special emphasis on critical transformers

   Tree trimming in northern area due to
    damage from snow storms




                                                         27
Contingency Planning
Jan Bennett




                       28
                                             Contingency Planning

Contingency 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
                                                              29
                                    Contingency Planning

Emergency Equipment

   Mobile 69/12kV Transformers
      Location              Xfmrs
      Phoenix                 4
      Flagstaff               2
      Yuma                    1
      Total                   7



   Emergency Towers
      Two Lindsey towers




                                                     30
Training & Drills
Cary Deise




                    31
                                       Coordination / Training

Training & 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.

                                                           32
                                                                                                                                                                                         Future Plans

EHV Transmission
                                                                                                                    PAGE

                                                    TO                                                                          NAVAJO
                                                  CRYSTAL
                                                                                                                                                                      FOUR
                                                                                                                              500KV J/O
                                                                                                                                                                     CORNERS




                                                                                                                             MOENKOPI
        TO CALIF.
                                                                                                                                                                      345KV


          TO MEAD /                                                                                                         To GLEN
                                                                                                     500KV J/O
                                                                                                                            CANYON     (WAPA)
         MARKETPLACE                                                 SELIGMAN

                                                                                                                 FLAGSTAFF
                                                                                                                              COCONINO
                                                 ROUND                                                                                2 circuits   230KV
                                                                                         YAVAPAI         VERDE
                                                 VALLEY
                                                                                                                                     FLAGSTAFF
                                                         BAGDAD               WILLOW                             FLAGSTAFF            (WAPA)                  CHOLLA
                                                                               LAKE                                (APS)
                                                                                                                    2009
                                                                                                                                                                              CORONADO
                                                                                                                                                                   SECOND
                                                                               PRESCOTT
                                                                                                                                                                    KNOLL
                                                                                                                                                                    2009


                                                                                                                 GAVILAN    PREACHER
                                                                                        RACEWAY                   PEAK       CANYON
                                                                                              2010
                                                                                 2010                               2005


                                                                                                                                       MAZATZAL
                                                                       2007                 TS5           WEST                             TBD
                                                                                            2007
                                                                                                          WING
                                                                                                                           PINNACLE
                                                                                                        PHOENIX
                                                         PALO VERDE-                                                         PEAK
                                                                                                         LIBERTY
                                                                                                         LIBERTY
                                                         HASSAYAMPA
                                                                                                          RUDD             KYRENE
                                                                                                                                BROWNING
                                                                                                     JOJOBA
                                                                                                                                    2011
                                                                                                          PINAL     KNOX
                                                      500KV              REDHAWK                          WEST                  DESERT
                                                       J/O                                                2007                   BASIN
                                                                                                            2007
       TO CALIF.                                           2012          GILA RIVER
                            N.GILA                                                                                             CASA
        500KV                                              J/O
                                                                                                                              GRANDE
                                                                           GILA BEND
                                                                                                  SANTA
                            YUMA                                                                  ROSA

                                                                                                                      SAGUARO
                                                                                                                                     ORACLE          SAN MANUEL
               YUCCA                                                                        TAT MOMOLI
                                                                                                                                    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                                                                                                          MURAL
                                                                              NUCLEAR POWER PLANT
                          PLANNED 345KV LINES
                          PLANNED 230KV LINES
                          PLANNED 115KV LINES
                           115KV & ABOVE SUBSTATION (EXISTING)                                                                  NORTH
                                                                                                                                                                  1/18/05
                           230KV & ABOVE SUBSTATION (FUTURE)                                                                                                 Transmission Planning
             J/O         JOINT OWNSHIP

                                                                                                                                                                                                  33
                   Substation locations and line routings depict an electrical connection only and
                    do not      reflect any assumed physical locations or routing.
                                                                                                                                                                                                 Future Plans

West Valley 230kV
                                                                                                                                                        To Navajo




                                                                                                                 To New
                                                                                                                 Waddell


                                                                   500KV                                                                                                    Carefree Hwy.
                                                                                                                                                  2010 AVERY
                                        2010                                                                     RACEWAY                               2008
                                                                                                                                             2008




                                                                                                                          )
                                                                                                                        PA
                                                                                                                                                TBD




                                                                                                                  10 (WA
                                                                                                                                     500kv     (SRP)
                                                                                                                                                                               2012 (J/O)
                                                                                                                                      J/O




                                                                                                                                                        2009
                                                                                                                  20
                  TS5
                  2007                                                                                                                                                           To Pinnacle
                               2007                                                                                                                                                 Peak
                            TBD                       TS1                                                                                                                          To TS6
                                                                                                                                  SRP




                                                                                                                                                                I-17 FWY.
                                                       2007                                                                                                                        To Pinnacle
               2007
                                                         500KV                                                                                                                        Peak
                             TO
                         PALO VERDE                                                 WESTWING
                                                                    2-Circuits

           TO                                TBD       2008                                                                                                                    To Alexander
       PALO VERDE                                                                    SURPRISE
                                                                                                                  TBD                             DEER VALLEY
                                       BELL RD.




                                                                                       LITCHFIELD RD.




                                                                                                                                                    SR
                                                                                                                                                        P
                                                                                                                                  APS

                                                                                                                                                                            To Alexander
                                                                                                        EL SOL




                                                                                                                                                                I-17 FWY.
                                                       TS2
                                                       2012
                                                                                                                              AGUA FRIA
                                                                                                                                                  GLENDALE
                                             TBD      2008
                                                                                                                                                  APS
                              BETHANY HOME RD.                                                               APS
                                                                                                                        SRP

                                                        TS3
                                                        2006                                                     WHITE TANKS (APS)                                                To Country
                                                                                                                                                                                     Club
                                       I - 10 FWY.
         BUCKEYE                                           2006                                                                                                                To Lincoln St.
                                  LIBERTY/TS4
                         (WAPA)                                                                                    RUDD                                     WEST
                                                                                                                                                            PHOENIX
                                                                                                                                                  SRP        APS
                                         500KV
                   TO PALO VERDE
                                                                         BASELINE RD..



                                                                       APS EXISTING 500KV LINES                                   230KV SUBSTATION (EXISTING)
                                                                       APS EXISTING 345KV LINES
                                                                                                                                  230KV SUBSTATION (FUTURE)
                                                                       APS EXISTING 230KV LINES
                                                                                UNDERGROUND
                                                                                                                                  GENERATING SITE &
                TO                                                      APS PLANNED LINES                                         230KV SUBSTATION
            GILA RIVER                                                      230KV
                                                                            345KV                                                 JOINT OWNSHIP                                 J/O
                                                                            500KV
                                                                                                                                  SERVICE TERRITORY BOUNDARY

                                                                                                                                                                                                          34
            1/18/05            Substation locations and line routings depict an electrical connection only and                    BETWEEN APS & SRP
      Transmission Planning              do not reflect any assumed physical locations or routing.                                OTHER COMPANY LINES
                                                                                                                                                                                       Future Plans

East Valley 230kV
                                                      To Prescott

                                                                                    GAVILAN PEAK
                                                                                     2005

                        AVERY
                          2008
            TO
         RACEWAY                                                                                                               CAREFREE HWY.



                                                                                                                                                                  TO
                                                                                                                                                                 GLEN
                                                                                                                                                                CANYON
                                                                                                                                                                (WAPA)
                                                                                                                                                                                TO




                                                                                                                                                    PIMA RD.
                                                                                                                                                                   345KV      CHOLLA



                                                                                                                                                             NE3
                                                                                                                                     2 - Circuits            2010
                                                                       2012
                                                                       J/O                                                                            2 - Circuits
                                                          TS6                     2009                                                                        APS           SRP
                                                          2009




                                          I-17 FWY.
                            To Deer                           (SRP)                                                                     PINNACLE
                             Valley                                                                                                      PEAK
                                                                                                       REACH


                           To Deer
                            Valley                                            LONE PEAK

                           BELL RD.
                                                         J/O APS/SRP
                         To Agua
                           Fria                                                                                                                CACTUS

                                                                           SUNNYSLOPE
                                                          ALEXANDER
                                          I-17 FWY.




                               To
                             Glendale
                   BETHANY HOME RD.                                                                                                                            MCDONALD RD.

                                                                                MEADOWBROOK

                            I - 10 FWY.
                                                          COUNTRY CLUB

                              To West
                              Phoenix
                                                                      LINCOLN ST.
                                                                                                                                     APS
                                                                           I - 10 FWY.
                                                                                                                                                    OCOTILLO
                                                                                                                                                               SUPERSTITION FWY.
                                                                                                       I - 10 F W .
                                                                                                                 Y




                            BASELINE RD..                                                                             KYRENE                                        BASELINE RD..
                                                                                                                                            TO BROWNING
                                                                                                                      KNOX                     500kV
       APS EXISTING 500KV LINES                        230KV SUBSTATION (EXISTING)                                    (SRP)
       APS EXISTING 345KV LINES                        230KV SUBSTATION (FUTURE)
       APS EXISTING 230KV LINES
             UNDERGROUND                                                                                                  500kV
                                                      GENERATING SITE &
                                                      230KV SUBSTATION                                                TO JOJOBA
       APS PLANNED LINES
                                                      JOINT OWNSHIP                      J/O                                                                         1/18/05
          230KV
          345KV                                       SERVICE TERRITORY BOUNDARY               TO SANTA ROSA                                                   Transmission Planning            35
          500KV                                       BETWEEN APS & SRP
                                                                                                 Substation locations and line routings depict an electrical connection only and
                                                      OTHER COMPANY LINES                                donot reflect any assumed physical locations or routing.
Conclusions
Steve Wheeler




                36
Conclusions

   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
                                                 37

								
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