ARIZONA PUBLIC SERVICE CO
10-Q, 1998-11-16
ELECTRIC & OTHER SERVICES COMBINED
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                                    FORM 10-Q
                       Securities and Exchange Commission
                             Washington, D.C. 20549

[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
     ACT OF 1934

For the quarterly period ended      SEPTEMBER 30, 1998
                               -----------------------------

                                       OR

[  ] TRANSITION  REPORT  PURSUANT  TO  SECTION  13 OR  15(d)  OF THE  SECURITIES
     EXCHANGE ACT OF 1934

For the transition period from               to
                               -------------    -------------

Commission file number    1-4473
                       -----------

                         ARIZONA PUBLIC SERVICE COMPANY
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

           ARIZONA                                               86-0011170
- -------------------------------                              -------------------
(State or other jurisdiction of                               (I.R.S. Employer
incorporation or organization)                               Identification No.)

400 NORTH FIFTH STREET, P.O. BOX 53999, PHOENIX, ARIZONA         85072-3999
- --------------------------------------------------------         ----------
        (Address of principal executive offices)                 (Zip Code)

Registrant's telephone number, including area code:      (602) 250-1000

- --------------------------------------------------------------------------------
              (Former name, former address and former fiscal year,
                         if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days.

                                 Yes [X]  No [ ]

Indicate the number of shares  outstanding  of each of the  issuer's  classes of
common stock, as of the latest practicable date.

               Number of shares of common stock, $2.50 par value,
                 outstanding as of November 13, 1998: 71,264,947
<PAGE>
                                    GLOSSARY

ACC - Arizona Corporation Commission

ACC Staff - Staff of the Arizona Corporation Commission

Company - Arizona Public Service Company

EITF - Emerging Issues Task Force

EITF 97-4 - Emerging  Issues Task Force  Issue No.  97-4,  "Deregulation  of the
Pricing of Electricity ___ Issues Related to the Applications of FASB Statements
No. 71, Accounting for the Effects of Certain Types of Regulation,  and No. 101,
Regulated  Enterprises ___ Accounting for the  Discontinuation of Application of
FASB Statement No. 71"

FERC - Federal Energy Regulatory Commission

ITC - Investment tax credit

1997 10-K - Arizona  Public  Service  Company Annual Report on Form 10-K for the
fiscal year ended December 31, 1997

Palo Verde - Palo Verde Nuclear Generating Station

Pinnacle West - Pinnacle West Capital Corporation

Power Coordination Agreement - 1955 agreement between the Company and Salt River
Project that provides for certain electric system and power sales

SFAS No. 71 - Statement of Financial  Accounting  Standards No. 71,  "Accounting
for the Effects of Certain Types of Regulation"

SFAS No. 131 - Statement of Financial Accounting Standards No. 131, "Disclosures
about Segments of an Enterprise and Related Information"

SFAS No. 133 - Statement of Financial  Accounting Standards No. 133, "Accounting
for Derivative Instruments and Hedging Activities"

Salt  River  Project - Salt River  Project  Agricultural  Improvement  and Power
District

TEP - Tucson Electric Power Company

Territorial  Agreement  - 1955  agreement  between  the  Company  and Salt River
Project that has provided  exclusive  retail  service  territories in Arizona as
against each other
<PAGE>
                                      -2-

                         PART I - FINANCIAL INFORMATION
                         ------------------------------

ITEM 1. FINANCIAL STATEMENTS

                         ARIZONA PUBLIC SERVICE COMPANY
                         CONDENSED STATEMENTS OF INCOME
                         ------------------------------
                                   (Unaudited)

                                                              Three Months
                                                           Ended September 30,
                                                         -----------------------
                                                            1998         1997
                                                         ---------    ---------
                                                         (Thousands of Dollars)

ELECTRIC OPERATING REVENUES ..........................   $ 740,734    $ 632,821
                                                         ---------    ---------
FUEL EXPENSES:

  Fuel for electric generation .......................      74,112       48,379
  Purchased power ....................................     178,587      110,151
                                                         ---------    ---------
     Total ...........................................     252,699      158,530
                                                         ---------    ---------
OPERATING REVENUES LESS FUEL EXPENSES ................     488,035      474,291
                                                         ---------    ---------
OTHER OPERATING EXPENSES:

  Operations and maintenance excluding
    fuel expenses ....................................     110,259      110,102
  Depreciation and amortization ......................      94,284       90,874
  Income taxes .......................................      98,411       92,195
  Other taxes ........................................      30,002       30,228
                                                         ---------    ---------
     Total ...........................................     332,956      323,399
                                                         ---------    ---------
OPERATING INCOME .....................................     155,079      150,892
                                                         ---------    ---------
OTHER INCOME (DEDUCTIONS):

  Other - net ........................................      (2,120)         445
  Income taxes .......................................      14,271       14,052
                                                         ---------    ---------
     Total ...........................................      12,151       14,497
                                                         ---------    ---------
INCOME BEFORE INTEREST DEDUCTIONS ....................     167,230      165,389
                                                         ---------    ---------
INTEREST DEDUCTIONS:

  Interest on long-term debt .........................      33,906       35,699
  Interest on short-term borrowings ..................       2,359        2,163
  Debt discount, premium and expense .................       1,878        1,825
  Capitalized interest ...............................      (4,106)      (3,997)
                                                         ---------    ---------
     Total ...........................................      34,037       35,690
                                                         ---------    ---------

NET INCOME ...........................................     133,193      129,699
PREFERRED STOCK DIVIDEND REQUIREMENTS ................       2,347        2,984
                                                         ---------    ---------
EARNINGS FOR COMMON STOCK ............................   $ 130,846    $ 126,715
                                                         =========    =========

See Notes to Condensed Financial Statements.
<PAGE>
                                      -3-

                         ARIZONA PUBLIC SERVICE COMPANY
                         CONDENSED STATEMENTS OF INCOME
                         ------------------------------
                                   (Unaudited)

                                                               Nine Months
                                                           Ended September 30,
                                                       -------------------------
                                                           1998         1997
                                                       -----------   ----------
                                                         (Thousands of Dollars)

ELECTRIC OPERATING REVENUES ........................   $1,562,872    $1,470,593
                                                       ----------    ----------
FUEL EXPENSES:
  Fuel for electric generation .....................      174,874       155,127
  Purchased power ..................................      247,327       188,182
                                                       ----------    ----------
     Total .........................................      422,201       343,309
                                                       ----------    ----------
OPERATING REVENUES LESS FUEL EXPENSES ..............    1,140,671     1,127,284
                                                       ----------    ----------
OTHER OPERATING EXPENSES:
  Operations and maintenance excluding
    fuel expenses...................................      309,388       287,280
  Depreciation and amortization ....................      279,097       274,027
  Income taxes .....................................      162,808       164,066
  Other taxes ......................................       89,459        89,874
                                                       ----------    ----------
     Total .........................................      840,752       815,247
                                                       ----------    ----------
OPERATING INCOME ...................................      299,919       312,037
                                                       ----------    ----------
OTHER INCOME (DEDUCTIONS):
  Other - net ......................................       (7,035)       (2,674)
  Income taxes .....................................       26,214        24,942
                                                       ----------    ----------
     Total .........................................       19,179        22,268
                                                       ----------    ----------
INCOME BEFORE INTEREST DEDUCTIONS ..................      319,098       334,305
                                                       ----------    ----------
INTEREST DEDUCTIONS:
  Interest on long-term debt .......................      103,249       105,390
  Interest on short-term borrowings ................        5,419         7,586
  Debt discount, premium and expense ...............        5,745         5,883
  Capitalized interest .............................      (12,627)      (12,391)
                                                       ----------    ----------
     Total .........................................      101,786       106,468
                                                       ----------    ----------

NET INCOME .........................................      217,312       227,837
PREFERRED STOCK DIVIDEND REQUIREMENTS ..............        7,660         9,805
                                                       ----------    ----------
EARNINGS FOR COMMON STOCK ..........................   $  209,652    $  218,032
                                                       ==========    ==========

See Notes to Condensed Financial Statements
<PAGE>
                                      -4-

                         ARIZONA PUBLIC SERVICE COMPANY
                         CONDENSED STATEMENTS OF INCOME
                         ------------------------------
                                   (Unaudited)

                                                              Twelve Months
                                                           Ended September 30,
                                                       -------------------------
                                                           1998         1997
                                                       ----------    ----------
                                                         (Thousands of Dollars)

ELECTRIC OPERATING REVENUES ........................   $1,970,832    $1,850,047
                                                       ----------    ----------
FUEL EXPENSES:
  Fuel for electric generation .....................      221,089       217,654
  Purchased power ..................................      294,430       207,115
                                                       ----------    ----------
     Total .........................................      515,519       424,769
                                                       ----------    ----------
OPERATING REVENUES LESS FUEL EXPENSES ..............    1,455,313     1,425,278
                                                       ----------    ----------
OTHER OPERATING EXPENSES:
  Operations and maintenance excluding
    fuel expenses...................................      421,542       429,569
  Depreciation and amortization ....................      370,741       363,625
  Income taxes .....................................      183,479       170,562
  Other taxes ......................................      119,844       117,084
                                                       ----------    ----------
     Total .........................................    1,095,606     1,080,840
                                                       ----------    ----------
OPERATING INCOME ...................................      359,707       344,438
                                                       ----------    ----------
OTHER INCOME (DEDUCTIONS):
  AFUDC - equity ...................................         --            (411)
  Other - net ......................................      (14,188)      (13,188)
  Income taxes .....................................       32,685        40,383
                                                       ----------    ----------
     Total .........................................       18,497        26,784
                                                       ----------    ----------
INCOME BEFORE INTEREST DEDUCTIONS ..................      378,204       371,222
                                                       ----------    ----------
INTEREST DEDUCTIONS:
  Interest on long-term debt .......................      138,790       142,196
  Interest on short-term borrowings ................        7,237         8,811
  Debt discount, premium and expense ...............        7,653         7,915
  Capitalized interest .............................      (16,444)      (14,478)
                                                       ----------    ----------
     Total .........................................      137,236       144,444
                                                       ----------    ----------

NET INCOME .........................................      240,968       226,778
PREFERRED STOCK DIVIDEND REQUIREMENTS ..............       10,658        13,941
                                                       ----------    ----------
EARNINGS FOR COMMON STOCK ..........................   $  230,310    $  212,837
                                                       ==========    ==========

See Notes to Condensed Financial Statements.
<PAGE>
                                      -5-

                         ARIZONA PUBLIC SERVICE COMPANY
                            CONDENSED BALANCE SHEETS
                            ------------------------

                                     ASSETS
                                   (Unaudited)

                                                    September 30,  December 31,
                                                        1998          1997
                                                    ------------   -----------
                                                      (Thousands of Dollars)
UTILITY PLANT:
Electric plant in service and held for
    future use....................................  $ 7,179,571    $ 7,009,059
Less accumulated depreciation and amortization ...    2,759,425      2,620,607
                                                    -----------    -----------
   Total .........................................    4,420,146      4,388,452
Construction work in progress ....................      211,758        237,492
Nuclear fuel, net of amortization ................       55,771         51,624
                                                    -----------    -----------
   Utility plant - net ...........................    4,687,675      4,677,568
                                                    -----------    -----------

INVESTMENTS AND OTHER ASSETS .....................      186,342        164,906
                                                    -----------    -----------

CURRENT ASSETS:
Cash and cash equivalents ........................       17,687         12,552
Accounts receivable:
   Service customers .............................      238,905        141,022
   Other .........................................       52,349         31,313
   Allowance for doubtful accounts ...............       (1,414)        (1,338)
Accrued utility revenues .........................       86,153         58,559
Materials and supplies, at average cost ..........       71,896         70,634
Fossil fuel, at average cost .....................       17,303          9,621
Deferred income taxes ............................        3,496          3,496
Other ............................................       27,632         24,529
                                                    -----------    -----------
   Total current assets ..........................      514,007        350,388
                                                    -----------    -----------

DEFERRED DEBITS:
Regulatory asset for income taxes ................      414,491        458,369
Rate synchronization cost deferral ...............      317,463        358,871
Unamortized costs of reacquired debt .............       56,409         63,501
Unamortized debt issue costs .....................       15,142         15,303
Other ............................................      260,904        242,236
                                                    -----------    -----------
   Total deferred debits .........................    1,064,409      1,138,280
                                                    -----------    -----------

   TOTAL .........................................  $ 6,452,433    $ 6,331,142
                                                    ===========    ===========

See Notes to Condensed Financial Statements.
<PAGE>
                                      -6-

                         ARIZONA PUBLIC SERVICE COMPANY
                            CONDENSED BALANCE SHEETS
                            ------------------------

                                   LIABILITIES
                                   (Unaudited)


                                                   September 30,  December 31,
                                                       1998          1997
                                                   -----------    -----------
                                                      (Thousands of Dollars)
CAPITALIZATION:
Common stock ....................................  $   178,162   $   178,162
Additional paid-in capital ......................    1,143,617     1,142,364
Retained earnings ...............................      610,535       528,798
                                                   -----------   -----------
   Common stock equity ..........................    1,932,314     1,849,324
Non-redeemable preferred stock ..................      123,795       142,051
Redeemable preferred stock ......................        9,401        29,110
Long-term debt less current maturities ..........    1,871,949     1,953,162
                                                   -----------   -----------
   Total capitalization .........................    3,937,459     3,973,647
                                                   -----------   -----------
CURRENT LIABILITIES:
Commercial paper ................................      115,350       130,750
Current maturities of long-term debt ............      154,220       104,068
Accounts payable ................................      170,202       107,423
Accrued taxes ...................................      208,595        85,886
Accrued interest ................................       26,489        31,660
Customer deposits ...............................       28,841        29,116
Other ...........................................       36,394        19,588
                                                   -----------   -----------
   Total current liabilities ....................      740,091       508,491
                                                   -----------   -----------
DEFERRED CREDITS AND OTHER:
Deferred income taxes ...........................    1,291,258     1,345,177
Deferred investment tax credit ..................       36,724        60,093
Unamortized gain - sale of utility plant ........       78,931        82,363
Customer advances for construction ..............       29,489        29,294
Other ...........................................      338,481       332,077
                                                   -----------   -----------
   Total deferred credits and other .............    1,774,883     1,849,004
                                                   -----------   -----------
COMMITMENTS AND CONTINGENCIES (Notes 5 and 8)
   TOTAL ........................................  $ 6,452,433   $ 6,331,142
                                                   ===========   ===========

See Notes to Condensed Financial Statements.
<PAGE>
                                      -7-

                         ARIZONA PUBLIC SERVICE COMPANY
                       CONDENSED STATEMENTS OF CASH FLOWS
                       ----------------------------------
                                   (Unaudited)

                                                               Nine Months
                                                           Ended September 30,
                                                         ----------------------
                                                            1998         1997
                                                         ---------    ---------
                                                         (Thousands of Dollars)

Cash Flows from Operating Activities:
  Net Income .........................................   $ 217,312    $ 227,837
  Items not requiring cash:
    Depreciation and amortization ....................     279,097      274,027
    Nuclear fuel amortization ........................      24,991       24,077
    Deferred income taxes - net ......................     (47,749)     (58,675)
    Deferred investment tax credit - net .............     (23,369)     (24,091)
  Changes in certain current assets and liabilities:
    Accounts receivable - net ........................    (118,843)     (84,769)
    Accrued utility revenues .........................     (27,594)     (26,597)
    Materials, supplies and fossil fuel ..............      (8,944)       2,077
    Other current assets .............................      (3,103)      (4,541)
    Accounts payable .................................      61,611       23,270
    Accrued taxes ....................................     122,709       93,215
    Accrued interest .................................      (5,171)     (13,279)
    Other current liabilities ........................      16,799       12,171
  Other - net ........................................     (20,778)      32,244
                                                         ---------    ---------
Net cash flow provided by operating activities .......     466,968      476,966
                                                         ---------    ---------

Cash Flows from Investing Activities:
  Capital expenditures ...............................    (221,904)    (229,608)
  Capitalized interest ...............................     (12,627)     (12,391)
  Other ..............................................      (5,872)     (16,798)
                                                         ---------    ---------
Net cash flow used for investing activities ..........    (240,403)    (258,797)
                                                         ---------    ---------

Cash Flows from Financing Activities:
  Long-term debt .....................................     109,375      109,906
  Short-term borrowings - net ........................     (15,400)     100,850
  Dividends paid on common stock .....................    (127,500)    (127,500)
  Dividends paid on preferred stock ..................      (8,070)     (10,334)
  Repayment of preferred stock .......................     (37,585)     (46,511)
  Repayment and reacquisition of long-term debt ......    (142,250)    (222,725)
                                                         ---------    ---------
      Net cash flow used for financing activities ....    (221,430)    (196,314)
                                                         ---------    ---------

Net increase in cash and cash equivalents ............       5,135       21,855
Cash and cash equivalents at beginning of period .....      12,552       12,521
                                                         ---------    ---------
Cash and cash equivalents at end of period ...........   $  17,687    $  34,376
                                                         =========    =========

Supplemental Disclosure of Cash Flow Information:
  Cash paid during the period for:
    Interest (excluding capitalized interest) ........   $ 100,929    $ 114,070
    Income taxes .....................................   $ 115,585    $ 161,228

See Notes to Condensed Financial Statements.
<PAGE>
                                       -8-

                         ARIZONA PUBLIC SERVICE COMPANY

                     NOTES TO CONDENSED FINANCIAL STATEMENTS

1. In the opinion of the Company, the accompanying unaudited condensed financial
statements  contain all adjustments  (consisting of normal  recurring  accruals)
necessary  to  present  fairly  the  financial  position  of the  Company  as of
September 30, 1998, the results of operations for the three months,  nine months
and twelve months ended  September 30, 1998 and 1997, and the cash flows for the
nine months  ended  September  30,  1998 and 1997.  It is  suggested  that these
condensed financial  statements and notes to condensed  financial  statements be
read in  conjunction  with the  financial  statements  and  notes  to  financial
statements  included in the 1997 10-K.  Certain  prior year  balances  have been
restated to conform to the current year presentation.

2.  The  Company's  operations  are  subject  to  seasonal  fluctuations,   with
variations in energy usage by customers occurring from season to season and from
month to month  within a  season,  primarily  as a result  of  changing  weather
conditions.  For this and other  reasons,  the results of operations for interim
periods are not  necessarily  indicative  of the results to be expected  for the
full year.

3. All the  outstanding  shares  of  common  stock of the  Company  are owned by
Pinnacle West.

4. See  "Liquidity  and Capital  Resources" in Part I, Item 2 of this report for
changes in capitalization for the nine months ended September 30, 1998.

5. Regulatory Matters ___ Electric Industry Restructuring

STATE

The  following is a  description  of  regulatory  and  legislative  developments
related to implementation of retail electric competition  beginning with the ACC
rules  adopted in December  1996  through the proposed  settlement  agreement in
November 1998.

ACC RULES.  In December 1996, the ACC adopted rules that provide a framework for
the introduction of retail electric  competition in Arizona.  On August 5, 1998,
the ACC adopted amendments to the rules. The ACC rules, as amended,  include the
following major provisions:

o        The rules  apply to  virtually  all of the Arizona  electric  utilities
         regulated by the ACC, including the Company.

o        The rules require each affected utility, including the Company, to make
         available  at least  20% of its 1995  system  retail  peak  demand  for
         competitive generation supply to all customer classes beginning January
         1, 1999, and 100% beginning January 1, 2001.
<PAGE>
                                      -9-

o        All  affected  utility  customers  with  single  premise  loads  of one
         megawatt or greater will be eligible for competitive  electric services
         beginning  January  1,  1999,  until  the 20%  level  described  in the
         preceding  paragraph  is met.  Until  the 20%  level  is met,  affected
         utility  customers  with single  premise  loads of forty  kilowatts  or
         greater will be able to aggregate  into a combined load of one megawatt
         or greater to be eligible for competitive  electric services  beginning
         January 1, 1999.

o        Prior to January 1, 2001,  residential  customers  will have  access to
         competitive  services through a quarterly  phase-in of one-half percent
         of residential customers per quarter beginning January 1, 1999.

o        Electric service providers that obtain  Certificates of Convenience and
         Necessity  (CC&Ns)  from the ACC will be  allowed  to  supply,  market,
         and/or broker  specified  electric  services at retail.  These services
         include  electric  generation,  but exclude  electric  transmission and
         distribution.

o        As required by the rules,  in February  1998 the Company filed with the
         ACC proposed tariffs for unbundled  service  (electric service elements
         provided and priced  separately).  The ACC has not issued a decision in
         this matter.

o        The rules  establish that the ACC shall allow a reasonable  opportunity
         for the recovery of unmitigated  stranded costs.  See "Stranded  Costs"
         below.   Affected   utilities   are   expected   to  take   reasonable,
         cost-effective steps to mitigate stranded costs.

o        Absent a waiver  from the ACC,  each  affected  utility  must  separate
         itself from all  competitive  generation  assets and services  prior to
         January 1, 2001. The separation must be either to an unaffiliated party
         or to a separate corporate affiliate or affiliates.

o        Beginning  January 1, 1999,  each  affected  utility will be prohibited
         from providing certain competitive electric services,  except through a
         separate affiliate.

o        The rules contain affiliate  transaction rules generally prohibiting an
         affected utility and its competitive  electric  affiliates from sharing
         personnel,  office space,  equipment,  services, and systems, except to
         the extent appropriate to perform certain  permissible shared corporate
         support  functions.  No later than  December  31, 1998,  each  affected
         utility  must file a  compliance  plan with the ACC  demonstrating  its
         compliance with the affiliate transaction rules.

In accordance  with the rules, on September 15, 1998, the Company filed a report
detailing  possible  mechanisms  to  provide  certain  non-rate  benefits  and a
possible  extension  of the 1996  regulatory  agreement  to all  standard  offer
customers and a proposed plan for phase-in  implementation  of 3,500 residential
customers per quarter
<PAGE>
                                      -10-

on a first come, first served basis.

The amended rules became  effective on an emergency basis upon their filing with
the Secretary of State on August 10, 1998.  The ACC held hearings on the amended
rules in October  1998 and must  complete  the process of  adopting  the amended
rules on a permanent basis within 180 days of the Secretary of State filing. The
Company  anticipates  the  completion  of this process by year-end 1998 or early
1999.

The  Company  believes  that  certain  provisions  of the 1996 ACC rules and the
amended  rules are  deficient.  In  February  1997,  a lawsuit  was filed by the
Company to protect its legal rights  regarding  the 1996 rules.  That lawsuit is
pending  but two  related  cases filed by other  utilities  have been  partially
decided in a manner adverse to those utilities' positions.  In October 1998, the
Company also filed a lawsuit to protect its legal rights  regarding  the amended
rules.

STRANDED COSTS. In February 1998, the ACC completed a formal, generic hearing on
stranded cost  determination  and recovery.  On June 22, 1998, the ACC issued an
order in this matter. The order allows an affected utility, such as the Company,
to choose between two options for the recovery of its stranded costs.  Under the
first option,  an affected utility that chooses to divest its generating  assets
must file a divestiture plan for ACC approval no later than October 1, 1998, and
such  divestiture must be completed by January 1, 2001, after which the affected
utility  would be  permitted  to  collect  100  percent of its  stranded  costs,
including a return on the unamortized balance, over a ten-year period. Under the
second option (referred to by the ACC as the "Transition Revenues Methodology"),
an affected utility would be provided  sufficient revenues necessary to maintain
financial  integrity  for a  period  of ten  years or the ACC  would  "otherwise
provide an  allocation  of  stranded  cost  responsibilities  and risks  between
ratepayers and shareholders as is determined to be in the public  interest." The
order also states an intent that the various  recovery options "will provide the
affected  utilities  sufficient  revenues to enable them to recover  appropriate
regulatory assets." In accordance with the order, on August 21, 1998 the Company
filed with the ACC the Transition Revenues  Methodology as its choice of options
for stranded  cost  recovery and a related  implementation  plan relating to its
chosen  option.  The  Company  does not intend to divest its  generating  assets
except to an affiliated  party. The Company believes that certain  provisions of
the stranded  cost order are  deficient and in August 1998 the Company filed two
lawsuits to protect  its legal  rights  relating to the order.  Based on various
assumptions,  estimates and methodologies, the Company estimates its recoverable
stranded costs (excluding regulatory assets which have already been addressed in
the 1996  regulatory  agreement  with the ACC) to be $533  million,  assuming  a
measurement  period 1999 through 2004. The Company cannot accurately predict the
outcome of this matter.

PROPOSED  SETTLEMENT  AGREEMENT.  On November  4, 1998,  the Company and the ACC
Staff entered into a proposed settlement agreement related to the implementation
of retail electric competition. In connection with the settlement agreement, the
Company and TEP entered into a memorandum of  understanding  for the exchange of
certain
<PAGE>
                                      -11-

assets. The following are the major provisions of each agreement,  both of which
are attached as exhibits to this Form 10-Q and incorporated herein by reference:

                  PROPOSED SETTLEMENT AGREEMENT WITH ACC STAFF

o        The  Company  will  reduce  its prices by a total of at least 4% in the
         years 1999 through 2002.  Price  reductions in 2001 and 2002 will apply
         only to the  Company's  residential  customers  who  purchase all their
         electric services from the Company.

o        There will be a  moratorium  on filing for retail rate  changes  before
         January 1, 2003,  except for the price  reductions  described above and
         certain other limited circumstances.

o        In addition to the  cost-saving  incentive  mechanism,  the rate filing
         moratorium  and full  recovery  of  regulatory  assets,  certain  other
         aspects of  the 1996  regulatory settlement are  extended through 2002.
         See Note 6  below for  additional  information on  the 1996  regulatory
         agreement.

o        The Company will be permitted to defer for later  recovery  prudent and
         reasonable  costs of  complying  with the  amended  ACC rules,  systems
         benefits  costs and solar power costs in excess of the levels  included
         in current rates.

o        The Company will have the ability to recover stranded costs in exchange
         for the  divestiture  of its 345 kV and 500 kV  transmission  assets to
         TEP.

o        The Company and TEP entered into a memorandum of understanding  for the
         exchange of certain assets.

o        Upon final  adoption  and approval of the  settlement  agreement by the
         ACC, the Company will move to dismiss all of its  litigation  currently
         pending against the ACC.

o        The Company will establish a separate corporate affiliate for marketing
         generation and other  competitive  electric  services  before  year-end
         1998.

o        The Company will form a separate corporate affiliate and transfer to it
         generating assets by year-end 2002.

                      MEMORANDUM OF UNDERSTANDING WITH TEP

o        The Company and TEP have entered into a memorandum of  understanding to
         negotiate in good faith to reach a definitive agreement on the exchange
         of certain transmission and generation assets.

o        The Company would acquire from TEP up to 273 MW of generating  capacity
         in exchange for the Company's 500 kV and 345 kV transmission lines. The
         assets
<PAGE>
                                      -12-

         will be exchanged  at the  transmission  current  book value,  which is
         approximately  $162  million  as of July,  1998.  If TEP is  unable  to
         transfer 273 MW of generating capacity, the deficiency is to be made up
         by a cash payment from TEP to the Company.

o        The transaction is expected to close by December 31, 2000.

o        The generating  assets are TEP's interest in the Navajo Generating
         Station and Four Corners Generating Plant.

A  hearing  date for the  ACC's  consideration  or  approval  of the  settlement
agreement has not yet been set. The memorandum of understanding  provides that a
definitive  agreement must be entered into within sixty days of a final order on
the settlement agreement by the ACC.

LEGISLATIVE INITIATIVES. An Arizona joint legislative committee studied electric
utility industry restructuring issues in 1996 and 1997. In conjunction with that
study,  Arizona  legislative  counsel prepared memoranda in late 1997 related to
the legal  authority  of the ACC to  deregulate  the  Arizona  electric  utility
industry.  The memoranda raise a question as to the degree to which the ACC may,
under the Arizona  Constitution,  deregulate any portion of the electric utility
industry and allow rates to be  determined by market  forces.  This latter issue
(the ability of the ACC to set rates based on the  competitive  market) has been
subsequently  decided by lower courts in favor of the ACC in two  unrelated  and
two related lawsuits.

In May 1998, a bill was enacted to facilitate  implementation of retail electric
competition in the state. The bill includes the following major provisions:  (a)
requirements that Arizona's largest  government-operated  electric utility (Salt
River  Project)  and, at their option,  smaller city  electric  systems (i) open
their service  territories  to electric  service  providers to implement  retail
electric  generation  competition  for 20% of each  utility's  1995  retail peak
demand by December  31, 1998 and for all retail  customers by December 31, 2000;
(ii) decrease rates by at least 10% over a ten-year period beginning as early as
January 1, 1991;  (iii)  implement  procedures and public  processes,  including
judicial  review at the  request of either an  interested  party or the  Arizona
Attorney General, for establishing the terms, conditions and pricing of electric
services  as  well  as  certain  other  decisions   affecting   retail  electric
competition,  which  procedures  and processes  are  comparable to those already
applicable to public  service  corporations;  (b) a  description  of the factors
which  form the basis of  consideration  by Salt River  Project  in  determining
stranded costs;  and (c) a requirement  that metering and meter reading services
be provided on a  competitive  basis  during the first two years of  competition
only for  customers  having  demands  in  excess of one  megawatt  (and that are
eligible for competitive generation services),  and thereafter for all customers
receiving competitive electric generation.  In addition, the Arizona legislature
will  review  and make  recommendations  for the  1999  legislature  on  certain
competitive issues.
<PAGE>
                                      -13-

FEDERAL

The  Energy  Policy  Act of 1992 and recent  rulemakings  by FERC have  promoted
increased  competition in the wholesale electric power markets. The Company does
not expect these rules to have a material impact on its financial statements.

Several  electric  utility  reform  bills  have been  introduced  during  recent
congressional  sessions,  which as currently  written,  would allow consumers to
choose their  electricity  suppliers by 2000 or 2003.  These bills,  other bills
that are expected to be introduced, and ongoing discussions at the federal level
suggest  a wide  range of  opinion  that  will need to be  narrowed  before  any
substantial restructuring of the electric utility industry can occur.

REGULATORY ACCOUNTING

The Company prepares its financial  statements in accordance with the provisions
of Statement of Financial  Accounting  Standards (SFAS) No. 71,  "Accounting for
the Effects of Certain Types of Regulation."  SFAS No. 71 requires a cost-based,
rate-regulated  enterprise to reflect the impact of regulatory  decisions in its
financial  statements.  The  Company's  existing  regulatory  orders and current
regulatory  environment  support its accounting  practices related to regulatory
assets,  which amounted to approximately  $0.9 billion at September 30, 1998. In
accordance  with  the  1996  regulatory  agreement,   the  ACC  accelerated  the
amortization  of  substantially  all of the  Company's  regulatory  assets to an
eight-year period that began July 1, 1996.

During 1997, the Emerging  Issues Task Force (EITF) of the Financial  Accounting
Standards  Board (FASB)  issued EITF 97-4,  which  requires  that SFAS No. 71 be
discontinued no later than when  legislation is passed or a rate order is issued
that  contains  sufficient  detail to determine its effect on the portion of the
business being  deregulated,  which could result in write-downs or write-offs of
physical  and/or  regulatory  assets.  Additionally,  the EITF  determined  that
regulatory  assets should not be written off if they are to be recovered  from a
portion of the entity which continues to apply SFAS No. 71.

Although  the ACC has issued  rules for  transitioning  generation  services  to
competition,  there are many unresolved  issues.  The Company continues to apply
SFAS No. 71 to all of its operations.  If rate recovery of regulatory  assets is
no longer probable, whether due to competition or regulatory action, the Company
would be required to write off the remaining balance as an extraordinary  charge
to expense.
<PAGE>
                                      -14-

GENERAL

Changes  in  ACC  decisions,  Arizona  and  federal  legislation,  and  possible
amendments to the Arizona  Constitution may impact the  implementation of retail
electric  competition  in  Arizona.  Until  the  details  of  implementation  of
competition,  including  addressing stranded costs, are determined,  the Company
cannot accurately predict the impact of full retail competition on its financial
position,  cash flows or results of operation.  As  competition  in the electric
industry continues to evolve,  the Company will continue to evaluate  strategies
and alternatives that will position the Company to compete in the new regulatory
environment.

6. Regulatory Matters ___ 1996 Regulatory Agreement

In April 1996, the ACC approved a regulatory  agreement  between the Company and
the ACC Staff. The major provisions of this agreement are:

o        An annual rate  reduction of  approximately  $48.5 million ($29 million
         after  income  taxes),  or 3.4% on  average  for all  customers  except
         certain contract customers, effective July 1, 1996.

o        Recovery  of  substantially  all of the  Company's  present  regulatory
         assets through accelerated  amortization over an eight-year period that
         began July 1, 1996,  increasing  annual  amortization by  approximately
         $120 million ($72 million after income taxes).

o        A formula  for  sharing  future  cost  savings  between  customers  and
         shareholders  (price reduction formula)  referencing a return on equity
         (as defined) of 11.25%.

o        A moratorium  on filing for  permanent  rate  changes  prior to July 2,
         1999,  except under the price reduction formula and under certain other
         limited circumstances.

o        Infusion of $200 million of common  equity into the Company by Pinnacle
         West, in annual payments of $50 million starting in 1996.

Pursuant to the price reduction  formula,  in 1997 and in 1998, the ACC approved
retail price  decreases of  approximately  $17.6  million  ($10.5  million after
income taxes),  or 1.2%,  effective July 1, 1997, and  approximately $17 million
($10 million after income taxes), or 1.1%, effective July 1, 1998, respectively.

7. Agreement with Salt River Project

On April 25, 1998, the Company and Salt River Project  entered into a Memorandum
of Agreement in anticipation  of, and to facilitate,  the opening of the Arizona
electric industry. The Agreement contains the following major components:
<PAGE>
                                      -15-

o        The  Company  and  Salt  River  Project  would  amend  the  Territorial
         Agreement  to remove  any  barriers  to the  provision  of  competitive
         electricity supply and non-distribution services.

o        The Company and Salt River Project  would amend the Power  Coordination
         Agreement  to lower  the price  that the  Company  will pay Salt  River
         Project for purchased power by  approximately  $17 million  (pretax) in
         1999 and by lesser annual amounts through 2006.

o        The  Company  and Salt  River  Project  agreed on  certain  legislative
         positions  regarding  electric  utility  restructuring at the state and
         federal level.

An ACC  docket had  previously  been  established  and the ACC held a hearing on
August 6, 1998 so that the ACC could review certain provisions of the Memorandum
of Agreement,  as amended,  including,  whether:  (a) the Territorial  Agreement
remains in the public interest,  (b) the Agreement is a contract in restraint of
trade,  and (c) the Agreement  will  materially  lessen the potential for retail
electric competition in Arizona.

The Antitrust  Unit of the Arizona  Attorney  General's  Office,  which has been
involved in the ongoing  regulatory and  legislative  proceedings  regarding the
restructuring of the Arizona electric industry,  requested  clarification of the
operation of certain of the Agreement's  provisions.  Pursuant to an Addendum to
Memorandum of Agreement, dated as of May 19, 1998 (the "Addendum"),  the Company
and  Salt  River  Project  amended  and  clarified  certain  provisions  of  the
Memorandum  of Agreement in response to certain  issues  raised by the Antitrust
Unit. By letter dated May 19, 1998,  the Antitrust  Unit advised the Company and
Salt River Project that, upon their execution of the Addendum,  it would take no
action  regarding  the  language of the  Memorandum  of  Agreement,  although it
reserved  the right to take  action in the future if new  information  justified
doing so.

8. The Palo Verde  participants  have  insurance for public  liability  payments
resulting  from  nuclear  energy  hazards to the full limit of  liability  under
federal law. This potential  liability is covered by primary liability insurance
provided by commercial  insurance carriers in the amount of $200 million and the
balance by an industry-wide  retrospective  assessment program. If losses at any
nuclear power plant covered by the programs  exceed the accumulated  funds,  the
Company  could  be  assessed  retrospective  premium  adjustments.  The  maximum
assessment  per  reactor  under  the  program  for  each  nuclear   incident  is
approximately  $88  million,  subject  to an  annual  limit of $10  million  per
incident. Based upon the Company's 29.1% interest in the three Palo Verde units,
the Company's  maximum  potential  assessment per incident is approximately  $77
million, with an annual payment limitation of approximately $9 million.

The Palo Verde  participants  maintain "all risk"  (including  nuclear  hazards)
insurance for property damage to, and decontamination of, property at Palo Verde
in the aggregate  amount of $2.75 billion,  a substantial  portion of which must
first be applied to
<PAGE>
                                      -16-

stabilization  and  decontamination.  The  Company  has also  secured  insurance
against  portions of any increased  cost of  generation  or purchased  power and
business  interruption  resulting from a sudden and unforeseen  outage of any of
the three  units.  The  insurance  coverage  discussed  in this and the previous
paragraph is subject to certain policy conditions and exclusions.

9. The Financial  Accounting Standards Board issued SFAS No. 131 on "Disclosures
about Segments of an Enterprise and Related  Information" which is effective for
fiscal years  beginning  after  December 15,  1997.  SFAS No. 131 requires  that
public companies report certain  information  about operating  segments in their
financial statements. It also establishes related disclosures about products and
services,  geographic  areas,  and major  customers.  The  Company is  currently
evaluating what impact this standard will have on its disclosures.

In June 1998 the  Financial  Accounting  Standards  Board  issued  SFAS No.  133
"Accounting  for  Derivative  Instruments  and  Hedging  Activities,"  which  is
effective  for the  Company  in  2000.  SFAS No.  133  requires  that an  entity
recognize all  derivatives  as either assets or liabilities in the balance sheet
and measure those instruments at fair value. The standard also provides specific
guidance for accounting for derivatives  designated as hedging instruments.  The
Company is  currently  evaluating  what  impact this  standard  will have on its
financial statements.
<PAGE>
                                      -17-

                         ARIZONA PUBLIC SERVICE COMPANY

Item 2. MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS.

OPERATING RESULTS

         The following table summarizes the Company's  revenues and earnings for
the three-month,  nine-month and  twelve-month  periods ended September 30, 1998
and 1997:

<TABLE>
<CAPTION>
                                        Periods ended September 30
                                                (Unaudited)
                                          (Thousands of Dollars)

                     Three Months              Nine Months              Twelve Months
               -----------------------   -----------------------   -----------------------
                  1998         1997         1998         1997         1998         1997
               ----------   ----------   ----------   ----------   ----------   ----------
<S>            <C>          <C>          <C>          <C>          <C>          <C>
Operating
Revenues       $  740,734   $  632,821   $1,562,872   $1,470,593   $1,970,832   $1,850,047

Earnings for
Common
Stock          $  130,846   $  126,715   $  209,652   $  218,032   $  230,310   $  212,837
</TABLE>

         OPERATING  RESULTS  -  THREE-MONTH  PERIOD  ENDED  SEPTEMBER  30,  1998
         COMPARED WITH THREE-MONTH PERIOD ENDED SEPTEMBER 30, 1997

         Earnings increased $4 million in the three-month  comparison  primarily
because of customer growth, weather effects, and higher profitability from power
marketing  activities,  partially  offset by higher fuel  expenses  and a retail
price  reduction.  See Note 6 of Notes to  Condensed  Financial  Statements  for
information on the price reduction.

         Operating  revenues  increased $108 million  because of increased power
marketing  revenues ($71 million),  customer  growth ($28 million),  and weather
effects ($18 million),  partially offset by the price reduction ($6 million) and
other ($3  million).  The increase in power  marketing  revenues was a result of
higher  market prices and increased  activity.  The increase in power  marketing
revenues was accompanied by related increases in purchased power.

         Fuel  expenses  increased  $94  million  primarily  because  of  higher
purchased power prices,  increased  wholesale and retail sales volumes,  and the
effects  of two  fuel-related  settlements  in the third  quarter  of 1997.  The
settlements  contributed  approximately  $21 million to 1997 pretax earnings and
are reflected on the income statement as reductions in fuel expense and as other
income.
<PAGE>
                                      -18-

         OPERATING RESULTS - NINE-MONTH PERIOD ENDED SEPTEMBER 30, 1998 COMPARED
         WITH NINE-MONTH PERIOD ENDED SEPTEMBER 30, 1997

         Earnings  decreased $8 million in the nine-month  comparison  primarily
because of two fuel-related  settlements  recorded in 1997, increased operations
and  maintenance  expenses,  the  effects  of  weather,  and  two  retail  price
reductions,  partially offset by customer growth and higher  profitability  from
power  marketing  activities.  See  Note  6  of  Notes  to  Condensed  Financial
Statements for additional information about the price reduction.

         The two  fuel-related  settlements  increased the Company's 1997 pretax
earnings by approximately $21 million.  The Company's income statement  reflects
these settlements as reductions in fuel expense and as other income.

         Operations and  maintenance  expenses  increased $22 million related to
impending   competition   and  growth,   outages  at  power   plants  and  other
miscellaneous factors.

         Operating  revenues  increased $92 million  because of increased  power
marketing  revenues  ($69  million) and  customer  growth ($58  million).  These
factors were  partially  offset by the effects of weather ($20  million) and the
price reductions ($15 million).  The increase in power marketing  revenues was a
result of higher prices and increased activity.  The increase in power marketing
revenues was accompanied by related increases in purchased power.

         OPERATING  RESULTS -  TWELVE-MONTH  PERIOD  ENDED  SEPTEMBER  30,  1998
         COMPARED WITH TWELVE-MONTH PERIOD ENDED SEPTEMBER 30, 1997

         Earnings increased $17 million in the twelve-month comparison primarily
because  of  customer  growth  and higher  profitability  from  power  marketing
activities.  These positive factors more than offset two retail price reductions
and  the  effects  of  weather.  See  Note 6 of  Notes  to  Condensed  Financial
Statements for additional  information  about the price  reductions.  The period
ended  September 30, 1997 also benefited from two  fuel-related  settlements and
the  recognition  of $8 million of income tax benefits  associated  with capital
loss carryforwards.

         Operating  revenues  increased $121 million  because of increased power
marketing  revenues ($85 million) and customer  growth ($69 million),  partially
offset by the price  reductions  ($18  million),  the  effects of  weather  ($10
million), and other ($5 million). The increase in power marketing revenues was a
result of higher prices and increased activity.  The increase in power marketing
revenues was accompanied by related increases in purchased power.
<PAGE>
                                      -19-

         The two  fuel-related  settlements  increased the Company's 1997 pretax
earnings by approximately $21 million.  The Company's income statement  reflects
these settlements as reductions in fuel expense and as other income.

         Operations and maintenance  expenses  decreased $8 million because of a
$32 million pretax charge for a voluntary severance program recorded in 1996 and
related  savings  in 1997,  partially  offset  by  higher  expenses  related  to
impending   competition   and  growth,   outages  at  power   plants  and  other
miscellaneous factors.

OTHER INCOME

         As part of a 1994 rate settlement with the ACC, the Company accelerated
amortization  of  substantially  all deferred ITCs over a five-year  period that
ends on December 31, 1999.  The  amortization  of ITCs is shown on the Company's
income  statement as Other Income ___ Income Taxes and  decreases  annual income
tax expense by approximately $28 million.

LIQUIDITY AND CAPITAL RESOURCES

         For the nine months  ended  September  30, 1998,  the Company  incurred
approximately $221 million in capital  expenditures,  which is approximately 68%
of  the  most  recently  estimated  1998  capital  expenditures.  The  Company's
projected capital expenditures for the next three years are: 1998, $323 million;
1999, $322 million; and 2000, $317 million, respectively.  These amounts include
about $30 - $35 million  each year for nuclear fuel  expenditures.  In addition,
the Company is considering  expanding  certain of its  businesses  over the next
several years, which may result in increased expenditures.

         The   Company's   long-term   debt  and  preferred   stock   redemption
requirements and payment  obligations on a capitalized  lease for the next three
years are:  1998,  $221 million;  1999,  $174 million;  and 2000,  $104 million.
During  the  nine  months  ended  September  30,  1998,  the  Company   redeemed
approximately  $142 million of its long-term debt and  approximately $38 million
of its preferred  stock with cash from  operations  and long-term and short-term
debt.  On  December 1, 1998 the  Company  will  redeem all $37.5  million of its
$1.8125 Cumulative Preferred Stock, Series W. As a result of the 1996 regulatory
agreement (see Note 6 of Notes to Condensed Financial Statements), Pinnacle West
invested  $50 million in the  Company in 1996 and 1997 and will  invest  similar
amounts annually in 1998 and 1999.

         Although  provisions  in the  Company's  bond  indenture,  articles  of
incorporation,  and financing  orders from the ACC establish  maximum amounts of
additional  first mortgage bonds and preferred stock that the Company may issue,
management does
<PAGE>
                                      -20-

not expect any of these  restrictions to limit the Company's ability to meet its
capital requirements.

YEAR 2000 READINESS DISCLOSURE

         As the year 2000 approaches  many companies face problems  because most
software  application  and  operational  programs  will not  properly  recognize
calendar  dates   beginning  with  the  year  2000.  The  Company   initiated  a
comprehensive  Company-wide  Year 2000  program  over a year ago to  review  and
resolve  all Year 2000  issues in critical  systems  and  equipment  in a timely
manner to avoid impacting the reliability of electric  service to its customers.
This included a Company-wide awareness program of the Year 2000 issue.

         The Company has been  actively  implementing  and replacing new systems
and  technology  since 1995 for reasons  unrelated  to the year 2000,  and these
actions have resulted in substantially all of its major  information  technology
(IT)  systems  becoming  Year 2000  compliant.  The Company  has made,  and will
continue to make,  certain  modifications to its computer  hardware and software
systems  and  applications  to ensure  they are  capable  of  handling  changing
business needs,  including  dates in the year 2000 and thereafter.  In addition,
other IT systems and non-IT systems, including embedded technology and real-time
process  control  systems,  are being analyzed for potential  modifications.  To
date, the Company has inventoried and assessed all IT and non-IT systems and any
renovation,  validation and implementation of these systems will be completed by
mid-1999,  except for those items that can only be completed during  maintenance
outages at Palo Verde, which will be completed for the last unit during the last
half of 1999. The Company has also designated an internal  audit/quality  review
team that is periodically  reviewing the individual Year 2000 projects and their
Year 2000 readiness.

         The Company is communicating with its significant  suppliers,  business
partners,  other  utilities and large customers to determine the extent to which
it may be affected by these third  parties'  plans to  remediate  their own Year
2000 issues in a timely manner.  The Company has been interfacing with suppliers
of systems,  services and materials in order to assess  whether their  schedules
for analysis and  remediation of Year 2000 issues are timely and to assess their
ability to continue to supply  required  services and materials.  The Company is
also working with the North American Electric Reliability Council (NERC) through
the Western Systems Coordinating Council (WSCC) to develop operational plans for
stable grid operation  that will be utilized by the Company and other  utilities
in the western United States.  However, the Company cannot currently predict the
effect on the Company if the systems of these other  companies are not Year 2000
compliant.

         The Company  currently  estimates that it will spend  approximately  $5
million  relating  to Year 2000  issues,  about  half of which has been spent to
date.  This does not include  expenditures  incurred since 1995 to implement and
replace systems for
<PAGE>
                                      -21-

reasons  unrelated  to the Year 2000,  as  discussed  above.  Costs  incurred to
address the Year 2000 issue are charged to  operating  expenses as incurred  and
are  expected  to be funded by  available  cash  balances  and cash  provided by
operations.

         The Company  currently  expects that its most  reasonably  likely worst
case Year 2000  scenario  would be  intermittent  loss of power,  similar  to an
outage during a severe weather disturbance.  In this situation the Company would
restore  power as soon as possible  by,  among other  things,  re-routing  power
flows.  The Company does not currently  expect that this  scenario  would have a
material effect on its financial position, cash flows or results of operations.

         The Company is working to develop its own  contingency  plans to handle
Year 2000  issues,  and expects  these plans to be  completed  by  mid-1999.  As
discussed  above,  the  Company  is also  working  with NERC and WSCC to develop
contingency plans related to grid operation.

COMPETITION AND ELECTRIC INDUSTRY RESTRUCTURING

         See Note 5 of Notes to Condensed Financial Statements in Part I, Item 1
of this  report for  discussions  of  competitive  developments  and  regulatory
accounting.  See Note 7 of Notes to Condensed  Financial  Statements  in Part I,
Item 1 of this  report  for a  discussion  of a  proposed  amendment  to a Power
Coordination  Agreement with Salt River Project that the Company estimates would
reduce its pretax costs for purchased power by approximately $17 million in 1999
and by lesser annual amounts through 2006.

RATE MATTERS

         See Note 6 of Notes to Condensed Financial Statements in Part I, Item 1
of this report for a discussion of a price reduction,  which became effective on
July 1, 1998.

FORWARD-LOOKING STATEMENTS

         The above discussion contains  forward-looking  statements that involve
risks and uncertainties.  Words such as "estimates,"  "expects,"  "anticipates,"
"plans,"    "believes,"    "projects,"   and   similar   expressions    identify
forward-looking  statements.  These risks and uncertainties include, but are not
limited to, the ongoing  restructuring of the electric industry;  the outcome of
the regulatory  proceedings relating to the restructuring;  regulatory,  tax and
environmental  legislation;  the ability of the Company to successfully  compete
outside its traditional regulated markets;  regional economic conditions,  which
could  affect  customer  growth;  the cost of debt and equity  capital;  weather
variations affecting customer usage;  technological developments in the electric
industry; and Year 2000 issues.
<PAGE>
                                      -22-

         These  factors and the other matters  discussed  above may cause future
results  to differ  materially  from  historical  results,  or from  results  or
outcomes currently expected or sought by the Company.
<PAGE>
                                      -23-
                           PART II - OTHER INFORMATION
                           ---------------------------

ITEM 5. OTHER INFORMATION

         CONSTRUCTION AND FINANCING PROGRAMS

         See "Liquidity and Capital  Resources" in Part I, Item 2 of this report
for a discussion of the Company's construction and financing programs.

         COMPETITION AND ELECTRIC INDUSTRY RESTRUCTURING

         See Note 5 of Notes to Condensed Financial Statements in Part I, Item 1
of this report for a  discussion  of  competition  and the rules  regarding  the
introduction of retail electric competition in Arizona. On February 28, 1997 and
October 16, 1998, lawsuits were filed by the Company to protect its legal rights
regarding the rules and the amended rules,  respectively,  and in each complaint
the  Company  asked the Court for (i) a judgment  vacating  the retail  electric
competition  rules,  (ii) a  declaratory  judgment  that the rules are  unlawful
because,  among other  things,  they were  entered  into  without  proper  legal
authorization,  and (iii) a permanent  injunction barring the ACC from enforcing
or implementing the rules and from  promulgating any other  regulations  without
lawful  authority.   ARIZONA  PUBLIC  SERVICE  COMPANY  v.  ARIZONA  CORPORATION
COMMISSION, CV 97-03753 (consolidated under CV 97-03748.) ARIZONA PUBLIC SERVICE
COMPANY v. ARIZONA CORPORATION COMMISSION,  CV 98-18896. On August 28, 1998, the
Company  filed two lawsuits to protect its legal rights under the stranded  cost
order and in its  complaints the Company asked the Court to vacate and set aside
the order. ARIZONA PUBLIC SERVICE COMPANY v. ARIZONA CORPORATION COMMISSION,  CV
98-15728.  ARIZONA PUBLIC  SERVICE  COMPANY v. ARIZONA  CORPORATION  COMMISSION,
1-CA-CC-98-0008. See "State-Proposed Settlement Agreement" in Note 5 of Notes to
Condensed  Financial  Statements in this Report regarding the possible dismissal
of the lawsuits described in this paragraph.

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

         (a)  Exhibits

EXHIBIT NO.       DESCRIPTION
- -----------       -----------

27.1            Financial Data Schedule

99.1            Settlement Agreement with the ACC dated November 4, 1998, which
                includes a Memorandum of Understanding with TEP

         In  addition  to  those  Exhibits  shown  above,   the  Company  hereby
incorporates  the  following  Exhibits  pursuant to Exchange Act Rule 12b-32 and
Regulation ss.229.10(d) by reference to the filings set forth below:
<PAGE>
                                      -24-
<TABLE>
<CAPTION>
EXHIBIT NO.     DESCRIPTION                        ORIGINALLY FILED AS EXHIBIT:      FILE NO.(a)   DATE EFFECTIVE
- -----------     -----------                        ----------------------------      ---------     --------------

<S>             <C>                                <C>                               <C>           <C>
  3.1           Bylaws, amended as of              3.1 to 1995 Form 10-K             1-4473        3-29-96
                February 20, 1996                  Report

  3.2           Resolution of Board of             3.2 to 1994 Form 10-K             1-4473        3-30-95
                Directors temporarily              Report
                suspending Bylaws in part

  3.3           Articles of Incorporation,         4.2 to Form S-3                   1-4473        9-29-93
                restated as of May 25, 1988        Registration Nos.
                                                   33-33910 and 33-55248 by
                                                   means of September 24,
                                                   1993 Form 8-K Report

  3.4           Certificates pursuant to           4.3 to Form S-3                   1-4473        9-29-93
                Sections 10-152.01 and             Registration Nos.
                10-016, Arizona Revised            33-33910 and 33-55248 by
                Statutes, establishing Series A    means of September 24,
                through V of the Company's         1993 Form 8-K Report
                Serial Preferred Stock

  3.5           Certificate pursuant to            4.4 to Form S-3                   1-4473        9-29-93
                Section 10-016, Arizona            Registration Nos.
                Revised Statutes, establishing     33-33910 and 33-55248 by
                Series W of the Company's          means of September 24,
                Serial Preferred Stock             1993 Form 8-K Report
</TABLE>

         (b)  Reports on Form 8-K

         During the  quarter  ended  September  30,  1998,  and the period  from
October 1 through November 13, 1998, the Company filed the following  reports on
Form 8-K:

         Report dated August 5, 1998  regarding  the ACC rules related to retail
competition.

- --------
(a)  Reports  filed  under  File No.  1-4473  were  filed in the  office  of the
Securities and Exchange Commission located in Washington, D.C.
<PAGE>
                                      -25-

                                   SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Company  has duly  caused  this  report to be  signed on its  behalf by the
undersigned thereunto duly authorized.

                                         ARIZONA PUBLIC SERVICE COMPANY
                                                  (Registrant)

Dated:  November 13, 1998            By: George A. Schreiber, Jr.
                                         --------------------------------------
                                         George A. Schreiber, Jr.
                                         Executive Vice President and
                                         Chief Financial Officer
                                         (Principal Financial Officer
                                         and Officer Duly Authorized
                                         to sign this Report)

<TABLE> <S> <C>

<ARTICLE>                     UT
<MULTIPLIER>                  1000
<CURRENCY>                    U.S. DOLLARS
       
<S>                             <C>
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               SEP-30-1998
<EXCHANGE-RATE>                                      1
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    4,687,675
<OTHER-PROPERTY-AND-INVEST>                    186,342
<TOTAL-CURRENT-ASSETS>                         514,007
<TOTAL-DEFERRED-CHARGES>                     1,064,409
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               6,452,433
<COMMON>                                       178,162
<CAPITAL-SURPLUS-PAID-IN>                    1,143,617
<RETAINED-EARNINGS>                            610,535
<TOTAL-COMMON-STOCKHOLDERS-EQ>               1,932,314
                            9,401
                                    123,795
<LONG-TERM-DEBT-NET>                         1,871,949
<SHORT-TERM-NOTES>                                   0
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                 115,350
<LONG-TERM-DEBT-CURRENT-PORT>                  154,220
                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>               2,245,404
<TOT-CAPITALIZATION-AND-LIAB>                6,452,433
<GROSS-OPERATING-REVENUE>                    1,562,872
<INCOME-TAX-EXPENSE>                           162,808
<OTHER-OPERATING-EXPENSES>                   1,100,145
<TOTAL-OPERATING-EXPENSES>                   1,262,953
<OPERATING-INCOME-LOSS>                        299,919
<OTHER-INCOME-NET>                              19,179
<INCOME-BEFORE-INTEREST-EXPEN>                 319,098
<TOTAL-INTEREST-EXPENSE>                       101,786
<NET-INCOME>                                   217,312
                      7,660
<EARNINGS-AVAILABLE-FOR-COMM>                  209,652
<COMMON-STOCK-DIVIDENDS>                       127,500
<TOTAL-INTEREST-ON-BONDS>                       87,558
<CASH-FLOW-OPERATIONS>                         466,968
<EPS-PRIMARY>                                        0
<EPS-DILUTED>                                        0
        

</TABLE>

                      ARIZONA PUBLIC SERVICE COMPANY, INC.
                           DOCKET NO. E-01345A-98-0473
                           DOCKET NO. E-01345A-97-773
                          DOCKET NO. RE-00000C-94-0165

                              SETTLEMENT AGREEMENT
                              --------------------


         The undersigned parties stipulate and agree to the following settlement
provisions  in  connection  with the  following  applications  submitted  to the
Arizona Corporation Commission ("Commission") by Arizona Public Service Company,
Inc.  ("APS"  or  "Company"):   Docket  No.   E-01345A-98-0473  and  Docket  No.
E-01345-97-773.

         In addition, this Settlement Agreement ("Agreement") settles all issues
arising from or related to the Commission's  Electric  Competition  Rules as set
forth in Decision Nos. 59943, 60977 and 61071.

         STATEMENT OF INTENTION.

         The  purpose of this  Agreement  is to resolve  contested  matters in a
manner  consistent  with  the  public  interest.   The  contested  matters  were
generated,  in large measure,  as a result of the  Commission's  Retail Electric
Competition  Rules and APS'  regulatory  filings made in response  thereto.  The
parties  recognize that the electric utility industry is undergoing a transition
to competition, which is scheduled to begin on January 1, 1999.

         It is the intention of the parties, APS and Commission Staff ("Staff"),
through this Agreement, to provide resolution of the contested matters regarding
APS'  unbundled  tariffs,  APS' requested  stranded cost  recovery,  and certain
outstanding  matters related to the  Commission's  Retail  Electric  Competition
Rules.  This  settlement  is  intended  to be  comprehensive,  fair to APS,  its
shareholders  and  customers  and  will  serve  to make an  efficient  and  cost
effective  transition to a new era of customer  choice in a  competitive  market
structure.  Therefore, the parties believe that this settlement is in the public
interest.

         The  parties  also  agree  that  in  exchange  for  APS  divesting  its
Transmission  Assets,  as defined  below,  APS shall fully  recover its stranded
costs, as described herein. Under this Agreement, the basis for APS' opportunity
to recover its stranded  cost is the  divestiture  of APS'  Transmission  Assets
including  345 kV and above.  The  failure of APS to divest of its  Transmission
Assets as  provided  herein  will  eliminate  APS'  opportunity  to recover  its
stranded costs in the manner provided by this Agreement. Instead, the Commission
may  award  transition  revenues  to APS in  order  to  maintain  its  financial
viability.  For purposes of this  Agreement,  the term  "divestiture"  under the
Commission's rules includes APS' divestiture of Transmission Assets as agreed to
herein. Staff believes that APS' divestiture of these Transmission Assets limits
the potential for APS to exercise  vertical market power and as such constitutes
a change in market structure in the transition to competition.
<PAGE>
I.       CONTINGENCY OF AGREEMENT.

         This Agreement is contingent upon Commission  approval of the Agreement
in its entirety and without modification  pursuant to a final and non-appealable
order.

II.      UNBUNDLED RATES.

         The Company's unbundled rates and charges will reflect (1) the embedded
cost of service for all  functions  as approved by the  Commission,  (2) the 1.1
percent rate reduction  approved by the Commission in Decision No. 61103 (August
28, 1998) and (3)  separately  identify  distribution,  transmission,  metering,
billing and system benefits and the remaining  generation  service,  which shall
consist of a Competition  Transition Charge,  ("CTC") a nonbypassable charge for
Regulatory  Assets,  and a Market  Generation  Credit ("MGC").  Current recovery
levels of  Regulatory  Assets  will  continue  until all  Regulatory  Assets are
recovered,  at which point APS will, without further  Commission action,  adjust
its prices to remove any  charges  for  Regulatory  Asset  recovery,  unless APS
demonstrates  and the  Commission  finds  that  APS has  experienced  offsetting
increased revenue requirements attributable to Commission-regulated APS electric
services.

         The quarterly Market  Generation  CreditS (MGC) shall be calculated for
peak and off-peak hours for the next twelve months based on the Palo Verde Nymex
futures  price,  plus 3 mills,  and  brought  to the  retail  delivery  level by
multiplying  by 1 plus the  appropriate  line loss. The peak and off peak prices
shall be  determined  by shaping  the Palo Verde Nymex  futures  price by actual
hourly prices from the California  spot price index.  The adder will be adjusted
for each class for  differences  between  the class  load  factor and the system
average  load factor  before  being  included in the MGC. The basic 3 mill adder
shall remain in effect unchanged unless 25% of the load eligible for competition
has not selected an alternative supplier by December 31, 2000, in which case the
adder will be increased to 3.5 mills. By September 1, 2002,  Staff and APS shall
present to the Commission their recommendations regarding the appropriate Market
Generation  Credit for the period from January 1, 2003 until the CTC  collection
ends.  At this  same  time,  Staff and APS shall  also  present  recommendations
regarding  the  longer-term  provision of Provider of Last Resort  service.  The
monthly  competitive  transition charges shall be the residual after subtracting
distribution,  transmission,  metering, billing, system benefits, the regulatory
asset charge and the retail MGCs from the bundled tariff. The computation of the
MGC and the CTC charge will be described in Exhibit A to this Agreement.

         In  addition,  APS may file by  September  1, 1999 an  overall  Company
"revenue  neutral" rate case to realign  standard  offer and unbundled  rates in
accordance  with  appropriate  cost allocation and rate design  principles.  The
Commission  shall  take such  action as is  necessary  to rule on the  Company's
filing that redesigned, overall Company revenue neutral, rates will be effective
as of January  1,  2001.  This rate  application  will not change the  Company's
currently authorized cost of capital or request an overall revenue increase.

         There may be a  mismatch  between  the  projected  MGC and the MGC that
would have  resulted  from the forward  price at the close of each month for the
following  month.  The

                                       2
<PAGE>
difference between these two forward prices for the same month multiplied by the
competitive sales in a month shall be interpreted as an over or  undercollection
of stranded costs. Monthly under and overcollections shall be accumulated with a
reasonable  carrying  charge.  If the  accumulated  undercollection  reaches  $5
million,  the Company may  increase the  generation  component of all rates by a
factor that would  collect  these  dollars  within one year..  At the end of the
fixed rate period (end of 2002) or upon the  cessation of the  regulatory  asset
charge,  if  this  occurs  earlier,  the  Company  shall  increase  or  decrease
generation  rate charges to collect or return this amount  during the  remaining
CTC period.

III.     RECOVERY OF REGULATORY ASSETS.

         APS will be  allowed  100  percent  recovery  of  regulatory  assets in
accordance with Section II. These will be identified separately in the unbundled
tariffs.

IV.      TRANSITION REVENUES/STRANDED COSTS

         APS and  Tucson  Electric  Power  Company  ("TEP")  have  executed  the
memorandum  of  understanding  ("MOU"),  attached  hereto as  Exhibit B, for the
exchange of certain APS transmission assets,  consisting of its 345 kV and 500kV
facilities  ("Transmission  Assets"),  for TEP's  interests  in the Four Corners
Generating  Plant and Navajo  Generating  Plant. The MOU commits both parties to
negotiate  in good faith to reach a  definitive  agreement  on the  exchange  of
assets.  This MOU also outlines the structure of the transaction,  describes the
assets to be included  in the  exchange,  establishes  the  Parties'  good faith
estimate of asset values, establishes a transmission pricing structure and lists
the conditions to closing the transaction.  These closing conditions include (1)
securing  independent  appraisals and fairness  opinions,  and (2) obtaining all
necessary consents and approvals from regulatory agencies and third parties in a
form and substance  satisfactory  to both parties.  This MOU is supported in its
entirety by Commission  Staff and approval of this  Settlement  Agreement by the
Commission  shall be deemed to constitute all requisite  approvals  necessary to
consummate the transaction described in the MOU.

         In the event that APS divests its transmission  assets according to the
MOU, APS will be allowed recovery of transition revenues through a CTC according
to  Section  II of this  Agreement  until  December  31,  2004.  As part of this
Agreement,  the Commission will not alter the transition  revenue amounts before
December  31,  2004  unless the  Commission  finds  that APS or its  competitive
affiliate has significant  market power and has manipulated the market price for
power in the  region.  This  exceptions  will  allow the  Commission  to adjust,
terminate or declare interim and subject to refund the transition revenue amount
reflected in the CTC.

         In the event that APS does not divest its transmission assets according
to the MOU,  except  to the  extent  that  any  joint  owner of any such  assets
exercises a right of first refusal, APS will not be allowed recovery of stranded
costs through a CTC but rather interim transition

                                       3
<PAGE>
revenues will be  implemented as identified in this  Agreement.  APS may file an
application  with the  Commission to recover  transition  revenues  based on its
financial  viability  and  actual  load lost to  unaffiliated  electric  service
providers.  It is  anticipated  that  divestiture  would occur in a  transaction
closing no later than December 31, 2000.

V.       DIVESTITURE.

         Staff believes that achieving the following three objectives will limit
the  ability  of APS to  exercise  vertical  market  power  and will  assist  in
achieving competition:

(1) all network  customers  in an access area (or zone) should pay the same rate
    for transmission service.

(2) all customers  should have access to any generation  within the region at no
    additional cost; and

(3) transmission  constraints  and/or the  allocation of Available  Transmission
    Capacity ("ATC") should not be allowed to unduly frustrate competition.

         These objectives can be met using either a region-wide  "postage stamp"
approach  or a properly  implemented  "license  plate"  approach.  If a "license
plate"  approach  is to be  used,  it  needs to be "all  inclusive",  i.e.,  all
intra-regional  transmission  costs  currently  being paid by network  customers
within each access  area need to be  absorbed  by the access area  provider  and
reflected in the "license plate" rate.  Under any pricing  approach,  congestion
management and ATC determination will be crucial to a successful implementation.
The following principles will apply :


<-   Subject to rights of first  refusal which may be exercised by joint owners,
     APS  shall  transfer  to  TEP's  affiliate   ("Transco")  all  transmission
     facilities  owned by APS at a voltage  level of 345 kV and  above.  This is
     required for all components of the transmission  system that may be subject
     to Committed  Uses or  constraints  which,  in turn, may be used to promote
     Vertical Market Power.

<-   APS shall file an application  with FERC to place all facilities  below the
     voltage level of 345 kV (which APS asserts serve a  distribution  function)
     under  the  jurisdiction  of  the  ACC,  with  appropriate  provisions  for
     wholesale customers subject to FERC's jurisdiction.

<-   APS  will  work  with  the   Transco  to  file   comparable   network   and
     point-to-point tariffs, providing transmission service on a "license plate"
     basis over the combined  APS/TEP  service  areas,  and  including  adjacent
     systems  as  appropriate  when  the  Independent  Scheduling  Administrator
     ("ISA") and/or Independent System Operator ("ISO") is implemented.

<-   APS will work with TEP to pursue the "license plate" approach and requisite
     filings even if the current ISA implementation plan fails to materialize or
     receive FERC approval as currently proposed.

<-   APS will  work with TEP to  ensure  that all  Committed  Uses  under  their
     control will be used for all customers within their respective access areas
     on a non-discriminatory basis:

                                       4
<PAGE>
<-   APS will provide Staff with a  comprehensive  definition and explanation of
     all Committed Uses supported by APS (existing or contemplated).

     >   If FERC rejects or otherwise orders APS to modify its commitments,  APS
         will  comply  accordingly  and will not seek to  relieve  itself of the
         obligations accepted herein.

     >   APS will work with TEP to ensure  that any and all  Committed  Uses are
         applied in a consistent manner for all transmission  facilities so that
         no generation resources are given a competitive  advantage by virtue of
         contractual  constraints  or  protocols  (as  contemplated  in the  ISA
         filing) designed to limit ATC.

     >   APS will pursue in good faith any mitigation measures (Re: The "license
         plate" approach) that are necessary for a full region-wide  Desert Star
         (or other ISO) implementation without "pancaked" rates.

<-   APS shall on a regular basis, but not less than quarterly,  provide Staff a
     written  report and briefing on the  activities  described in this section.
     APS' failure to comply with the provisions of this section,  other than the
     transfer of APS' transmission facilities as described herein, shall not, by
     itself,  provide a basis for the Commission to modify any provision of this
     Agreement  or of the order  approving  this  Agreement,  dealing  with cost
     recovery.

VI.      FERC TRANSMISSION ISSUES

         APS and TEP will  develop  and present to FERC a  transmission  pricing
structure  for the use of such assets that will not increase  rates to customers
in APS or TEP's  current  service  territories.  APS will  enter  into a Service
Agreement with TEP relating to APS' use of the Transmission Assets under an Open
Access  Transmission Tariff ("OATT") accepted by FERC. The OATT shall have zonal
rates developed for the use of the transmission facilities pursuant to which the
transmission  rates for any  transmission  user in either APS' or TEP's  current
service  territory,  including  APS'  merchant  group,  shall  not be  adversely
affected by the  transfer of the  Transmission  Assets.  Where APS  transmission
users are receiving  service under a single  agreement for both the Transmission
Assets and the lower  voltage  transmission  assets to be retained  by APS,  the
Parties  will agree to  bifurcate  those  obligations  in a manner that will not
result in any cost shifting or increase in  transmission  costs to such users or
APS. The Commission shall support the APS and TEP FERC filings to effectuate the
transmission pricing principles described in this paragraph.

VII.     RATE REDUCTIONS.

         The existing  Second  Restated and Amended  Rate  Reduction  Agreement,
("1996  Agreement"),  as reflected in Decision No. 59601, will be extended until
December  31,  2002,  subject to the  following  revisions.  In  addition to the
revisions listed below, the provisions of the 1996 Agreement that are or will be
moot, extended with modifications or extended without

                                       5
<PAGE>
modifications, are identified in Exhibit C hereto. Rate reductions for the years
1999 through 2002 will be:

     For usage on and after July 1, 1999,  1.0% or the APS formula  contained in
     the  existing  Second  Restated and Amended Rate  Reduction  Agreement,  as
     reflected in Decision No.  59601,  using 1998 calendar  year,  whichever is
     greater, to be applied to both Standard Offer and unbundled rates;

     For usage on and after July 1,  2000,  1.0% or the APS  formula  using 1999
     calendar year,  whichever is greater,  to be applied to both Standard Offer
     and unbundled rates;

     For usage on and after July 1,  2001,  1.0% or the APS  formula  using 2000
     calendar year,  whichever is greater, to be applied to Standard Offer rates
     for residential customers only;

     For usage on and after July 1,  2002,  1.0% or the APS  formula  using 2001
     calendar year,  whichever is greater, to be applied to Standard Offer rates
     for residential customers only.

         The impact of each year's rate reduction should be implemented  through
reductions to  generation  rates that result in equal  percentage  reductions to
each class (including competitive customers).

         Costs of complying with the Electric Competition Rules, system benefits
costs,  and solar power costs in excess of levels included in current rates, may
be deferred subject to the limitations set forth below. Notwithstanding the rate
reduction  provisions  stated  above,  the  Company's  share of any property tax
expense decreases shall be used to offset other expense deferrals referred to in
this  section.  In any year that the APS formula is used to  calculate  the rate
reductions,  ratepayer's 55% share above the stated,  minimum 1% rate reduction,
would first be used to reduce amounts otherwise deferrable.  APS will be allowed
full recovery of any remaining  deferrable costs beginning  January 1, 2003. APS
agrees  to make an annual  reporting  of its level of  deferred  expenses  to be
included in its rate reduction filings.

         APS agrees to meet the  requirements of the Solar  Portfolio  Standard,
Section 1609 of the rules,  as amended in August 1998. APS agrees to support the
continuation of the Solar Portfolio  Standard in future Commission  proceedings.
APS agrees to continue the programs  included in the System Benefits Charge at a
level equal to or greater than the level at which APS was funding those programs
in 1997.

         As  applied  to APS (as a  utility  distribution  company),  the  solar
portfolio  standard  ("SPS")  established  by the  Commission  for  distribution
companies in A.A.C.  R14-2-1609(C),  as amended in August,  1998, will be met by
APS  purchasing  all the  necessary  solar  power  through  an RFP  process  and
recovering  the  associated  costs  through a "green"  solar rate to market such
solar power to its Standard Offer  customers at a price designed to recover such
costs (but,  in the event  revenue  from such rate plus any  additional  revenue
received from the sale of solar power to any other entities is not sufficient to
fully  recover  such  costs,  any  deficiency  shall be  deferred  for  recovery
[including a reasonable  return] as  discussed  above.  The RFP process and cost
recovery mechanism will be subject to (1) approval of the RFP by the Director of
the Utilities  Division by July 1, 1999,  and (2) joint  approval by APS and the
Director of the Utilities Division of a successful,  qualified responsive bid to
such RFP.

                                       6
<PAGE>
VIII.    SEPARATION OF MONOPOLY AND COMPETITIVE SERVICES

         APS will transfer its  generation  services and  competition  assets at
book value into a separate corporate  affiliate no later than December 31, 2002.
APS is also  granted a waiver  from  compliance  with the  provisions  of A.A.C.
R14-2-1606(B)  until  December  31,  2002.  Approval  of this  Agreement  by the
Commission shall be deemed to constitute all requisite  Commission approvals for
(1) the creation of a new corporate  affiliate and the transfer  thereto of APS'
generation  services and competitive  assets at book value; and (2) the full and
timely recovery  through the mechanism  referred to in Section VII above for the
reasonable and prudent costs of such action.  Such transfers may require various
regulatory  and third party  approvals,  consents or waivers  from  entities not
subject  to APS'  control,  including  the FERC  and the  NRC.  No party to this
Settlement  Agreement nor the Commission will oppose, or support  opposition to,
APS requests to obtain such approvals, consents or waivers.

         By December  15,  1998,  the Company  will provide the ACC Staff with a
detailed description of the process and the time necessary for a transfer of its
generation and competitive  service assets into a separate corporate  affiliate.
The  Company  shall also  specify  the nature and  magnitude  of any  associated
transaction costs that APS will request be recovered in rates.

         By November 15,  1998,  the Company  will  establish a separate  energy
services  corporate  affiliate  (approval  of  which  shall be  deemed  given by
Commission  approval of this Agreement) and will apply for a competitive CC&N to
provide such competitive retail generation and other competitive  services as it
intends to offer.  No later than November 30, 1998, the Company will file in the
competitive CC&N docket a code of conduct that will address any and all concerns
regarding the  separation of monopoly and  competitive  services that arise from
forming and operating a competitive  affiliate while retaining generation assets
until December 31, 2002. Staff will recommend to the Commission,  by December 1,
1998,  that it grant such  application,  subject only to such  conditions as are
reasonably   imposed  on  other  Energy  Service   Providers,   unless  specific
circumstances warrant additional conditions.

IX.      INDEPENDENT SCHEDULING ADMINISTRATOR/INDEPENDENT SYSTEM OPERATOR.

         The  Company   shall  commit  to  having  an   independent   scheduling
administrator  ("ISA") in place and  operational by April 1, 1999, and commit to
facilitating  the  development of an  independent  system  operator  ("ISO") for
Arizona by December 31, 2000. APS shall , on a regular basis,  but not less than
quarterly,  provide Staff a written report and briefing on the status of the ISA
and ISO. In the event APS does not have an independent scheduling  administrator
in place by December 31, 1998 or, an independent system operator by December 31,
2002, the Commission shall examine the reason(s) for the failure and the efforts
expended by APS in compliance with this Section. APS' failure to comply with the
provisions  of this  section  shall  not,  by  itself,  provide  a basis for the
Commission to modify any provision of this  Agreement or of the order  approving
this Agreement, dealing with cost recovery The ISA/ISO also calculates available
transmission capacity and implements protocols for system transfer capabilities,
committed  uses  of the  transmission  system,  must-run  generating  units  (as

                                       7
<PAGE>
determined by the Commission) and provides  dispute  resolution such that market
participants can expeditiously resolve dispute claims. If an Arizona only ISO is
established,  it is  anticipated  that it would join a regional  ISO when one is
established.

XI.      SECTION 40-252 - CERTIFICATE OF CONVENIENCE AND NECESSITY

         APS agrees to modify its Certificate(s) of Convenience and Necessity to
permit competition pursuant to A.A.C. R14-2-1600,  et seq., as amended in August
1998.  The  order  adopting  this  Settlement  Agreement  shall  constitute  the
necessary Commission Order modifying APS' CC&Ns to permit competition.

XII.     RESOLUTION OF LITIGATION.

         Upon  issuance  by the  Commission  of a  final,  non-appealable  order
approving this  Agreement,  APS shall move to dismiss with prejudice all pending
litigation  brought by APS against the Commission.  As mutually agreed, APS will
actively  support the  Commission's  position and assist the  Commission  in any
remaining  litigation  regarding the Commission's  Electric Competition Rules or
related matters.

XIII.    MUST RUN ASSETS.

         To the extent  such  contracts  are not  subject to FERC  jurisdiction,
contracts  regarding the sale of output from must run generation  units shall be
reviewed and approved by the Commission.

XIV.     WAIVERS.

         APS has requested waiver of certain  Affiliated  Interest Rules.  Staff
concurs with APS' requests for waivers of certain Affiliated Interest Rules, and
agrees that the  Commission's  approval of this  Agreement  will  constitute the
Commission's  granting  of the  waivers,  under  the  following  conditions  and
limitations:-

R14-2-801(5)

     APS has requested a waiver of the definition of "reorganization" to exclude
     corporate  reorganizations  that do not  involve a  reconfiguration  of the
     utility  distribution  company  ("UDC") in the holding  company  structure.
     Under the waiver  proposed  by APS,  the holding  company  would be free to
     reorganize,   buy  or  sell  non-regulated  affiliates  without  Commission
     approval.  Staff  agrees  that  R14-2-801(5)  is waived as  applied to APS'
     non-regulated  affiliates  to the extent that the UDC is not  implicated in
     any reorganization of the holding company's  structure or the non-regulated
     affiliates' structure. In any reorganization where the UDC is implicated in
     any manner as to reconfiguration  of the holding company's  structure or an
     affiliates'  reconfiguration,  or if the UDC forms, divests

                                       8
<PAGE>
     or reconfigures any of its  subsidiaries,  Rule  R14-2-801(5) is not waived
     and is applicable to APS (UDC).

R14-2-804(A)

     APS has  requested a waiver of the rule that  requires any  affiliate  that
     transacts business with the UDC to open its books and records to Commission
     review.  Staff  agrees  that  R14-2-804(A)  may be  waived  as  long as the
     non-regulated  affiliate's books and records reflect  transactions with the
     UDC and are  included  in the  Code of  Conduct  required  by the  Electric
     Competition   Rules.   By  this  waiver,   the  Commission   still  retains
     jurisdiction  to  review  and have  access  to the  books  and  records  of
     affiliates  of  the  UDC  for  whatever   purposes  the  Commission   deems
     appropriate if the Commission's rate setting jurisdiction is implicated.

R14-2-805(A)

     APS has  requested  waiver of the rule that  requires a holding  company to
     file an  annual  report  with  respect  to  diversification  plans  and the
     activities of unregulated subsidiaries.  The affect of the waiver requested
     by APS would be to limit the  annual  filing  requirement  to the UDC only.
     Staff  agrees that the annual  filing  under the rule can be limited to the
     UDC unless the holding  company or  subsidiary's  activities  implicate the
     UDC, and have a likely  material  adverse  affect upon the UDC's  financial
     viability and integrity.

R14-2-805(A)(2)

     This Rule  requires a specific  description  of business  activities of all
     affiliates to be filed with the  Commission on an annual basis.  APS wishes
     to have a waiver  of the Rule and  limit  disclosure  to the  nature of the
     business  rather than  specific  activities.  Staff agrees this Rule may be
     waived to the extent indicated by APS.

R14-2-805(A)(6)

     APS seeks a waiver of the  disclosure  requirement in the annual filing for
     bases for  allocation  of all plant  revenue  expenses to all regulated and
     unregulated entities in the holding company structure.  APS' request limits
     disclosure to  allocations  applicable  to the UDC.  Staff agrees with this
     waiver to disclosure but reserves the Commission's  jurisdiction to receive
     disclosure  of the bases for  allocation  if necessary in the  Commission's
     determinations  in any matter,  including  but not limited to rate  setting
     matters.

                                       9
<PAGE>
R14-2-805(A)(9), (10) and (11)

     APS seeks a waiver of the annual submission of contracts and agreements for
     transactions  between the  regulated  utility and  nonregulated  affiliate.
     Staff  agrees to the waiver of this  requirement  as requested by APS as to
     the contracts and  agreements  which are not covered by the Code of Conduct
     required by the Retail  Competition  Rules or not subject to FERC approval.
     However,   the  Commission   reserves  the   jurisdiction  to  receive  the
     information  that  would  have  been  submitted  under  the  rule,  if  the
     Commission  deems necessary for any purpose  including,  but not limited to
     rate setting matters.

XVI.     IMPLEMENTATION OF RETAIL ACCESS.

         Direct access to electric  generation  suppliers  will be phased in for
all customers in APS' territory in accordance with A.A.C. R14-2-1604.  APS shall
determine  residential customers eligible for retail access pursuant to the plan
filed by APS with the  Commission on September 15, 1998.  For customers that are
20 kW or smaller at each premise, load profiling will be allowed.


XVII.    CLARIFICATION OF SERVICES THAT MUST AND CAN BE OFFERED BY APS

         Staff will support amending A.A.C. R14-2-1616.B, as provided in Exhibit
D hereto.

XVIII.   CONSIDERATION FOR AGREEMENT

         The Company's  willingness to enter into this Agreement and to withdraw
from certain civil actions against the Commission is based upon the Commission's
irrevocable promise herein to permit recovery of the Company's regulatory assets
and stranded  costs as provided  herein.  Such promise by the  Commission  shall
survive the  expiration of the Agreement and shall be  specifically  enforceable
against this and any future Commission.

MISCELLANEOUS PROVISIONS

1.       ADMISSIONS.

         This Agreement  represents an attempt to compromise and settle disputed
claims arising out of APS'  Applications in a manner  consistent with the public
interest.  Nothing  contained  in this  Agreement  is an admission by any of the
parties  that  any of the  positions  taken,  or that  might be taken by each in
formal proceedings, is unreasonable.  In addition,  acceptance of this Agreement
by the parties is without  prejudice to any position taken by any party in these
proceedings.

                                       10
<PAGE>
2.       COMMISSION ACTION.

         Each provision of this Agreement is in consideration and support of all
the  other  provisions,   and  expressly  conditioned  upon  acceptance  by  the
Commission  without change. In the event that the Commission fails to adopt this
Agreement  according to its terms by November 25, 1998,  this Agreement shall be
deemed  withdrawn  and the  parties  shall be free to  pursue  their  respective
positions in these proceedings without prejudice.

3.       LIMITATIONS.

         The terms and  provisions  of this  Agreement  apply  solely to and are
binding only in the context of the  provisions and results of this Agreement and
none of the  positions  taken herein by the parties may be referred to, cited or
relied upon by any other party in any fashion as  precedent  or otherwise in any
other proceeding before this Commission or any other regulatory agency or before
any court of law for any  purpose  except in  furtherance  of the  purposes  and
results of this Agreement.

4.       To the extent that any  provisions of this  Agreement are  inconsistent
with  the  Commission's  Electric  Competition  Rules,  the  provisions  of this
Settlement  Agreement  are  intended  to  apply.  However,  no  waivers  of  any
Commission rules are granted to APS except as provided herein.

5.       LOW INCOME CUSTOMER PROGRAMS.

         Prior to Commission  consideration  of this Settlement  Agreement,  the
parties  acknowledge  that APS may enter into  discussions with others regarding
low  income  customer  programs  and,  as  a  result,   may  request  Commission
recognition of the results of such discussions.

6.       PROPOSED ORDER.

         The proposed  form of order  acceptable  to the parties is contained in
Exhibit E, attached hereto.

         Dated this November 4, 1998



Arizona Public Service Company          Arizona Corporation Commission



By: William J. Post                     By: Jack Rose
   ---------------------------             ---------------------------
Title: CEO                              Title:  Executive Secretary
      ------------------------                ------------------------

                                       11
<PAGE>
                   CALCULATION OF THE MARKET GENERATION CREDIT


         The Market  Generation Credit ("MGC") will be stated as an Off-Peak and
an On-Peak value for each calendar  month.  For all customers  less than 1 MW in
size,  the total monthly  dollar credit will be calculated by customer class and
will  use the  same  energy  consumption  profile  for  each  customer  within a
particular  class. The total monthly dollar credit for customers 1 MW or greater
will be  calculated  individually  for each  customer.  All MGC  values  will be
determined  in the month of  November  for the  succeeding  calendar  year.  The
calculations  will be based on the NYMEX forward price curve for the  succeeding
calendar year and the  historical  California PX Prices for the preceding  year.
The MGC values will be grossed up by the distribution Loss Factor as well as the
Adder, as such terms are defined below.

               ON-PEAK MGC = [(NYMEX) * (1 + LOSS FACTOR)] + ADDER

          OFF-PEAK MGC = [(NYMEX) * (1 + LOSS FACTOR) * (LLR)] + ADDER

Where:

     ADDER:          An  addendum  to the  calculated  prices  designed to
                     promote   competition   and  credit   customers   for
                     ancillary  services.   This  adder  will  be  set  at
                     0.300(cent)  kWh for  conforming  loads  (those  with
                     coincident  peak  load  factors   equivalent  to  the
                     aggregate  system  load  factor).  This adder will be
                     adjusted  by the  ratio  of  system  load  factor  to
                     customer  load factor and stated in  increments  of 5
                     between 35 percent and 95 percent load factors.

     LOSS FACTOR:    A  multiplier  designed  to reflect  the  appropriate
                     distribution losses by voltage level.

     LLR:            A light load ratio calculated by dividing the average
                     California  Off-Peak price by the average  California
                     On-Peak  prices for the same  month of the  preceding
                     year. The California Off-Peak and On-Peak prices will
                     be the hourly day-ahead  unconstrained  California PX
                     prices.

     OFF-PEAK:       All  holidays  and hours  recognized  by the  Western
                     Systems Coordinating Council as off-peak periods.

     ON-PEAK:        All non-Off-Peak hours.

     NYMEX:          The Palo Verde electricity futures contract traded on
                     the New York  Mercantile  Exchange  for each month of
                     the following calendar year as determined in November
                     of the preceding year.

                 MONTHLY CUSTOMER TRANSITION CHARGE CALCULATION

         The monthly Customer  Transition  Charge (CTC) will be calculated using
the following formula:

                                    EXHIBIT A
<PAGE>
 CTCS = [(TARIFF GENERATION CHARGES) * (BILLING DETERMINANTS)] - [(MGC +ADDER)
                           * (BILLING DETERMINANTS)]

         The monthly CTC cannot be less than zero.

TRUE-UP OF THE MONTHLY CUSTOMER TRANSITION CHARGE CALCULATION:

         The difference  between the projected  monthly NYMEX price as described
above and the actual NYMEX price as  determined by the average of the last three
trading  days for that  month will be  multiplied  by that  month's  competitive
direct access sales.  This monthly  amount will be considered an over- or under-
recovery  of  stranded  costs.   These  differences  will  then  be  accumulated
(including a return  component),  and at the end of each  calendar  year will be
divided by the next calendar year's projected  competitive  direct access sales.
The resultant factor (in (cent)/kWh)  will be applied to any competitive  direct
access sales during the  following  calendar year in order to adjust the CTC for
the calculated true-up.

                                   Exhibit A
<PAGE>
                           MEMORANDUM OF UNDERSTANDING
                                     BETWEEN
               ARIZONA PUBLIC SERVICE COMPANY AND TUCSON ELECTRIC
                                 POWER COMPANY

         The purpose of this memorandum of  understanding  ("MOU") is to confirm
         the understanding  between ARIZONA PUBLIC SERVICE COMPANY ("APS"),  and
         TUCSON  ELECTRIC POWER COMPANY  ("TEP")  regarding the  transaction set
         forth below.

1.       RECITALS:

         1.1.     In connection  with its  Application  for approval of its Plan
                  for Stranded Cost Recovery filed with the Arizona  Corporation
                  Commission ("ACC") pursuant to A.A.C.  R-14-2-1607,  et. seq.,
                  TEP has  proposed  to  divest  all of its  generation  assets,
                  including,  without  limitation,  TEP's interest in the Navajo
                  Generating Station located in Page, Arizona ("Navajo") and the
                  Four Corners Generating Units 4 and 5 located near Farmington,
                  New   Mexico   ("Four   Corners"),   all  of  which  are  more
                  particularly described on Attachment A ("Generating Assets");

         1.2.     APS is  willing  to divest  its  345kV and 500kV  transmission
                  system facilities and associated rights of way, which are more
                  particularly  described  on  Attachment  B (the  "Transmission
                  Assets")   only  as  part  of,   and   conditioned   upon,   a
                  comprehensive settlement ("APS Settlement Agreement") with the
                  ACC Staff that requires such divestment to a third party,  and
                  that satisfactorily  resolves a number of  competition-related
                  issues,  and  that is  approved  by an ACC  order  in form and
                  substance  satisfactory to APS as more fully described  below;
                  and

         1.3.     The Parties desire to outline in this MOU the principles  that
                  will form the basis for  negotiation  of definitive  terms and
                  conditions  pursuant to which the Parties will exchange  TEP's
                  Generation   Assets  for  APS's   Transmission   Assets   (the
                  "Transaction").

2.       EXCHANGE OF ASSETS BETWEEN APS AND TEP:

                  At the Closing, as defined below, APS will transfer to TEP the
         Transmission Assets and TEP will transfer to APS the Generation Assets.
         In addition,  subject to any consent  requirements,  APS shall transfer
         and assign to TEP and TEP shall assume the obligations  associated with
         all existing agreements for transmission  service over the Transmission
         Assets.  To the extent  there is a  difference  between the agreed upon
         fair market values of the Transmission  Aassets and Generation  Assets,
         such difference will be paid in the form of cash at Closing, as defined
         below, by the Party  transferring  the assets with the lower value. The
         Transaction shall also include a power purchase agreement providing for
         unit
                                  Page 1 of 6

                                   EXHIBIT B
<PAGE>
         contingent  power  sales from APS to TEP,  as more fully  described  in
         Section 6 below ("Power Purchase Agreement").

3.       CLOSING:

         Subject  to the  terms  and  conditions  set  forth  in the  Definitive
         Agreement,  the closing of the Transaction (the "Closing") is estimated
         to be on or  before  January  2,  2001.  To the  extent  any  condition
         precedent  set  forth  in the  Definitive  Agreement,  including  those
         enumerated in Section 7 of this MOU, has not been  satisfied by January
         2, 2001,  the Closing will be extended by mutual consent of the Parties
         to a date by which the Parties  reasonably  believe that such condition
         precedent will be satisfied.  In the event all conditions have not been
         satisfied or waived by the applicable  Party or Parties by December 31,
         2002, the Definitive Agreement between the Parties shall terminate.

4.       DEFINITIVE AGREEMENT:

         The  completion of the  Transaction  is subject to the execution by the
         Parties  of an  agreement,  which will be based on the  principles  set
         forth   herein  and  which  will   include   mutually   agreeable   and
         comprehensive   terms,   conditions,    representations,    warranties,
         indemnities,   and  covenants  with  respect  to  the  Transaction  and
         structure  (the  "Definitive  Agreement") on or before 60 days from the
         date that the ACC enters both the APS Order and TEP Order, as described
         herein. The obligation of APS to enter into the Definitive Agreement is
         subject to the receipt by APS of a final Order,  not subject to appeal,
         which adopts the APS Settlement Agreement , which in form and substance
         is  satisfactory  to APS ("APS Order").  The obligation of TEP to enter
         into the  Definitive  Agreement  is subject to the  receipt by TEP of a
         final Order, not subject to appeal,  which adopts a settlement with the
         ACC regarding TEP's Plan for Stranded Cost Recovery  pursuant to A.A.C.
         R-14-2-1607  et. seq ("TEP  Order").  The Parties agree to negotiate in
         good  faith to reach a  Definitive  Agreement  within the 60 day period
         described above, provided, however, such time may be extended by mutual
         agreement  of the  Parties.  In the event APS and TEP do not obtain the
         aforementioned  Orders by December 15, 1998, or any mutually  agreeable
         extension  thereof,  either Party may  terminate  this MOU by providing
         written  notice to the other  Party and  neither  Party  shall have any
         obligation or liability hereunder.

5. ASSET VALUATION

         For purposes of the  Transaction the value of the  Transmission  Assets
         will be the book value at the date of Closing, which is estimated to be
         approximately  $162  million  as of July,  1998;  and the  value of the
         Generation  Assets is $165  million as of  January  1,  2001.  The fair
         market values are based on the  Transaction  being subject to the terms
         and conditions  outlined in this MOU; the asset descriptions  contained
         in Attachments A and B; and assumptions that the physical condition of

                                  Page 2 of 6
<PAGE>
         the Assets will not materially  impair their operation or efficiency as
         of the Closing date.  Fair market values will be subject to adjustments
         based on the final schedule of assets to be transferred; inventories of
         equipment;  and due diligence  inspection of the physical  condition of
         the Assets and those rights and  obligations  to be transferred as part
         of the  Transaction.  In the  event  that any of the  Assets  cannot be
         transferred  because of the  exercise  by any third party of a right of
         first  refusal to  purchase a portion of such  Assets,  the fair market
         value of such Assets shall be adjusted in  proportion  to the amount of
         assets  being  transferred.  The  above  values  with  respect  to  the
         Generation  Assets do not include any reserves for  reclamation  claims
         through the date of  Closing.  Such  reserves  will be funded by a cash
         payment to APS at  Closing,  if the amount of such  reserves  have been
         definitively determined,  or by establishment of an escrow reserve fund
         to be  agreed  upon by the  parties  and to be funded in cash by TEP at
         Closing.  Fuel, material and supplies will be transferred at book value
         at the time of Closing.

6. POWER PURCHASE AGREEMENT AND TRANSMISSION O&M

         6.1.     At  Closing  the  parties  will  enter  into a Power  Purchase
                  Agreement which will provide for unit  contingent  power sales
                  from APS to TEP from the Generation Assets. The Power Purchase
                  Agreement  will be based on the terms and conditions set forth
                  in Attachment C.

         6.2.     In  negotiating  the  Definitive  Agreement  the Parties  will
                  discuss the desirability  of, and terms and conditions  under,
                  which  APS would  continue  to  provide  certain  O&M  support
                  functions for the Transmission  Assets for a period subsequent
                  to Closing.

7. CONDITIONS PRECEDENT TO CLOSING:

         7.1.     The  Definitive  Agreement  shall  provide that Closing of the
                  Transaction shall be subject to certain conditions, which must
                  be  satisfied  prior to Closing.  Each Party agrees to use its
                  best efforts to satisfy the conditions precedent applicable to
                  it prior to the Closing.  In addition to any other  conditions
                  the Parties may agree upon, conditions to Closing will include
                  the following:

         7.2.     MUTUAL CONDITIONS PRECEDENT:

                  7.2.1.   Receipt  of  any  necessary   FERC  approval  of  the
                           Transaction,   including   transfer  of  transmission
                           assets pursuant to ss. 203 of the Federal Power Act.

                                  Page 3 of 6
<PAGE>
                  7.2.2.   Receipt of FERC  approval of a  transmission  pricing
                           structure as described in Section 8 of this MOU.

                  7.2.3.   Receipt  of  any   necessary   ACC  approval  of  the
                           Transaction.

                  7.2.4.   Any  consents  or   approvals  of  other   regulatory
                           agencies and third  Parties  necessary to  consummate
                           the  Transaction  as  contemplated  in the Definitive
                           Agreement.

                  7.2.5.   Absence of any pending or  threatened  litigation  or
                           adverse regulatory proceeding with respect to the APS
                           Order, the TEP Order or the Transaction.

                  7.2.6.   Absence  of  any  material   adverse  change  in  the
                           physical  condition  or  value  of  the  Transmission
                           Assets and Generation  Assets between the date of the
                           Definitive Agreement and the Closing.

         7.3.     APS CONDITIONS PRECEDENT

                  7.3.1.   Receipt  of  such  consents  or  approvals  as may be
                           required to effect the  transfer of the  Transmission
                           Assets,     including     satisfaction     of     any
                           rights-of-first-refusal    held    by    the    other
                           participants in the Transmission Assets.

                  7.3.2.   Replacement of APS as Operating  Agent for the Navajo
                           Project  Southern   Transmission   System,  the  Four
                           Corners  500kV  and 345kV  Switchyards,  and the Palo
                           Verde/North Gila 500kV line.

                  7.3.3.   Execution  of the Power  Purchase  Agreement  by both
                           Parties.

                  7.3.4.   Receipt  of  satisfactory  fairness  opinions  and/or
                           independent  appraisals  and approval of its Board of
                           Directors.

         7.4.     TEP CONDITIONS PRECEDENT

                  7.4.1.   Receipt  of  such  consents  or  approvals  as may be
                           required to effect the  transfer  of TEP's  ownership
                           interest  in  Four  Corners  and  Navajo,   including
                           satisfaction of any  rights-of-first-refusal  held by
                           the other  participants in the Navajo Project and the
                           Four Corners Project.

                  7.4.2.   An order by the ACC which  will  allow TEP to recover
                           in  rates   its  costs   under  the  Power   Purchase
                           Agreement.

                  7.4.3.   Appointment of TEP as Operating  Agent for the Navajo
                           Project  Southern   Transmission   System,  the  Four
                           Corners  500kV  and 345kV  Switchyards,  and the Palo
                           Verde/North Gila 500kV line.

                                  Page 4 of 6
<PAGE>
                  7.4.4.   Receipt  of  satisfactory  fairness  opinions  and/or
                           independent  appraisals  and approval of its Board of
                           Directors.

         7.5.     All regulatory and third party consents and approvals shall be
                  satisfactory to each Party in form and substance.

8. TRANSMISSION PRICING:

         In  their  applications  to  FERC  for  approval  of  the  sale  of the
         Transmission  Assets and the Open Access  Transmission  Tariff by which
         APS will receive service over the Transmission Assets, the Parties will
         develop and present to FERC a  transmission  pricing  structure for the
         use of such assets that will not  increase  rates to  customers  in the
         Parties'  current  service  territories.  APS will enter into a Service
         Agreement  with TEP  relating  to APS' use of the  Transmission  Assets
         under an Open Access  Transmission  Tariff  accepted by FERC. This Open
         Access  Transmission Tariff shall contain zonal rates developed for the
         use of EHV transmission  facilities  pursuant to which the transmission
         rates for any  transmission  user in  either  Party's  current  service
         territory,  including  APS'  merchant  group,  shall  not be  adversely
         affected by the transfer of the  Transmission  Assets.  The Tariff will
         also  preserve and  recognize  the rights of  transmission  users under
         their  existing  transmission  agreements  with the Parties.  Where APS
         transmission  users are receiving  service under a single agreement for
         both the Transmission Assets and the lower voltage  transmission assets
         to be  retained  by APS,  the  Parties  will agree to  bifurcate  those
         obligations  in a manner  that will not result in any cost  shifting or
         increase in transmission costs to such users or APS.

9. EXCLUSIVITY:

         unless  and until this MOU is  terminated  pursuant  to its terms,  and
         subject to the  requirements  associated with  rights-of-first  refusal
         held by other  participants  in  jointly  owned  projects  in which the
         Parties  are also  participants,  the  Parties  shall not,  directly or
         indirectly, solicit or entertain offers from, negotiate with, or in any
         manner  encourage,  discuss,  accept,  or consider  any proposal of any
         other person relating to the acquisition of the Assets,  in whole or in
         part.  Notwithstanding the foregoing,  the Parties understand and agree
         that  if  all  or  any  portion  of the  Transmission  Assets  are  not
         transferred  to TEP due to a failure to satisfy  any of the  conditions
         set forth in Section 7 above or in the Definitive Agreement,  APS will,
         in accordance  with the terms of the APS Settlement  Agreement,  divest
         those  Transmission  Assets  to a  third  party  upon  such  terms  and
         conditions as APS, in its sole and absolute  discretion,  determines to
         be  appropriate  and TEP shall  not take any  action  to  prevent  such
         divestiture.  The Parties  further  understand and agree that if all or
         any portion of the Generation  Assets are not transferred to APS due to
         a failure to satisfy any of the conditions set forth in Section 7 above
         or in the Definitive Agreement,  TEP will, in accordance with the terms
         of the TEP Order,

                                  Page 5 of 6
<PAGE>
         divest  those  Generation  Assets to a third  party upon such terms and
         conditions as TEP, in its sole and absolute  discretion,  determines to
         be  appropriate  and APS shall  not take any  action  to  prevent  such
         divestiture

10. CONFIDENTIALITY:

         The   Parties   agree  to  continue  to  abide  by  the  terms  of  the
         Confidentiality Agreement between the Parties dated September 23, 1998.

11. COSTS:

         Each Party shall be  responsible  for and bear all of its own costs and
         expenses  (including  any broker's or finder's fees and the expenses of
         its  Representatives)  incurred  at any  time in  connection  with  the
         negotiation of the Definitive Agreement and the pursuit or consummation
         of the Transaction.

12. ENTIRE AGREEMENT:

         This MOU  constitutes  the entire  agreement  between the Parties,  and
         supersedes  all  prior  oral  or  written  agreements,  understandings,
         representations  and  warranties,  and  courses of conduct  and dealing
         between the Parties on the subject matter  hereof.  Except as otherwise
         provided herein,  this MOU may be amended or modified only by a writing
         executed by both Parties.

13. SIGNATURE CLAUSE:

         The  signatories  hereto  represent  that they have been  appropriately
         authorized  to enter into this  Agreement in Principle on behalf of the
         Party for whom they sign.  This MOU is hereby  executed  as of this 4th
         day of November, 1998.

                                        ARIZONA PUBLIC SERVICE COMPANY

                                        By  Jack Davis
                                            ------------------------------------
                                        Its President
                                            ------------------------------------

                                        TUCSON ELECTRIC POWER COMPANY

                                        By  Vincent Nitido
                                            ------------------------------------
                                        Its Vice President
                                            ------------------------------------


                                  Page 6 of 6
<PAGE>
                                  ATTACHMENT A

                            Generation Assets of TEP

NAVAJO GENERATING STATION

All of Tucson Electric Power Company's right, title, interest, and assets in the
Navajo Project and the Navajo Project Agreements including,  but not limited to,
those  specific  interests as set forth in Sections  5.19, 6 and 7 of the Navajo
Project Co-Tenancy  Agreement,  as amended;  excluding  therefrom,  however, any
right,  title,  and  interest  in  facilities  or  agreements  relating  to  the
transmission  of  electricity  in excess  of 230kV  from the  Navajo  Generating
Station.

1.       Adequate SO2 allowances to operate the generation  facilities for their
         remaining life.

2.       Three steam electric generating units (Unit 1, Unit 2 and Unit 3), each
         of which  shall  have a  nameplate  rating of 750,000 kw and shall be a
         tandem-compound,  four flow, single reheat, turbine-generator unit with
         initial steam  conditions of 3500 psig and  1000(degree)  F,  including
         three pulverized coal-fired, super-critical steam generator units.

3.       All auxiliary equipment associated with said units.

4.       An  administration  building,  machine shop and warehouse to be located
         adjacent to the power plant.

5.       A pumping  station and all  associated  equipment  to be located on the
         Colorado River.

6.       500 kv step-up  transformers and all equipment  associated therewith up
         to the point where the leads from the said  transformers  terminate  at
         the  generator  isolating 500 kv  disconnect  switch  structures in the
         Navajo 500 kv Switchyard.

7.       Standby   auxiliary   power   transformation   equipment   and  related
         facilities.

8.       Plant control and communication  facilities and associated buildings or
         equipment.

9.       Railroad  approximately  80 miles in length  extending  from within the
         Rail Loading Site into the Navajo Plant Site,  rolling  stock,  related
         facilities and equipment.
<PAGE>
10.      All improvements  owned by the Co-Tenants within the Ash Disposal Area,
         Pumping Plant Site and Rail Loading Site.

11.      All land and land rights  acquired  under the  Indenture of Lease,  the
         ss.323  Grants and the Contract  and Grant of Easement  from the United
         States for Water Intake and Discharge Facilities.

FOUR CORNERS GENERATING STATION

All of Tucson Electric Power Company's right, title, interest, and assets in the
Enlarged Four Corners Generating Station and the Four Corners Project Agreements
including, but not limited to, those specific interests as set forth in Sections
6, 7,  and 8 of the Four  Corners  Project  Co-Tenancy  Agreement,  as  amended;
excluding  therefrom,  however,  any right, title, and interest in facilities or
agreements  relating to the  transmission of electricity in excess of 230kV from
the Enlarged Four Corners Generating Station.

         All SO2  allowances  allotted  to TEP's  interest  in the Four  Corners
         Project.

         Steam Electric Generating Units 4 and 5 and their associated switchyard
         facilities  shall  consist  principally  of two 755 mw class 3500 psig,
         1000 F with reheat to 1000 F,  cross-compound,  3600/1800  rpm,  double
         flow, outdoor  turbine-generator units, complete with accessories;  two
         pressurized  type,   super-critical-pressure  steam  generating  units,
         designed for burning  pulverized  coal as primary fuel with natural gas
         available for ignition fuel, complete with accessories;  345-500 kV tie
         transformers;  reserve auxiliary power source; and other items required
         for  the  complete  generating   installation,   excluding  the  Common
         Facilities and Related Facilities allocated thereto.

COMMON FACILITIES FOR ENLARGED FOUR CORNERS GENERATING STATION:

1.       Land Rights, including Lease Payments during Construction, Right-of-Way
         Expense and Surveys.

2.       Clearing Site of Brush and Rough Grading.

3.       Landscaping and Planting Adjacent to Service Building.

4.       Yard  Finish  Grading  of Plant  Areas not  Requiring  Paving or Gravel
         Surfacing.

5.       Plant  Access  Road,  including  Subbase,  Surfacing,  Auxiliary  Dike,
         Culverts and Asphalt Coat from San Juan Bridge to BIA Canal.

6.       River Access Road, including Subbase, Gravel Surfacing, Pipeline Bridge
         Crossing, Culverts and Riprap.
<PAGE>
7.       Plant Area Roads, including Asphaltic Surfaced,  Gravel Based and Other
         Gravel Surfaced Roads.

8.       Cement and Asphaltic  Paving in Operating and Parking Areas,  including
         Curbing.

9.       Concrete Walks at the Service Building, Warehouse and Circulating Water
         Intake Area.

10.      Plant Area Chain Link Fence,  Remote Controlled Main Gate, Manual Gates
         and Barbed Wire Fence.

11.      Yard Lighting Standards, Conduit, Cable, Foundations and Lamps.

12.      Fire Protection  Pumps,  Piping with  Excavation and Backfill,  Valves,
         Hydrants and Hose Carts with Hoses and Nozzles.

13.      Sanitary  Sewer  System,  including  Cast  Iron and Clay  Sewer  Lines,
         Manholes, Septic Tank and Accessories.

14.      Service Water System  Chlorinator,  Coagulator,  Filters,  Pumps,  Yard
         Piping, Foundations and Domestic Water Lines.

15.      Service and Shop Building Foundation,  Walls, Doors,  Windows,  Heating
         and Ventilating Equipment, Plumbing, Toilet Facilities and Lighting.

16.      Warehouse Foundation, Floor Slab Superstructure and Lighting.

17.      Miscellaneous Buildings,  Foundations, Floor Slabs, Superstructures and
         Lighting.

18.      Coal Mobile Equipment, includes Hough D500 Paydozer.

19.      Cooling Pond Dam, Spillway,  Blowdown Structure,  Intake Canal, Curtain
         Wall and Temperature Recorders.

20.      Concrete Intake Structure Excavation,  Backfill,  Caissons and Concrete
         Structure for Service Water Pumps and Fire Pumps.

21.      Hoist Structure and Hoist for Intake Area.

22.      Screens and Stoplogs for Service Water and Fire Pumps.

23.      Miscellaneous Equipment for Service Water and Fire Pumps.

24.      Concrete Cribbing between Intake Structure and Canal Bank.

25.      Circulating Water Discharge Canal to Cooling Pond.
<PAGE>
26.      River Pumping  Plant,  includes  River Weir,  Sluiceway,  Pump Chamber,
         Gates,  Stoplogs,  Pumps,  Motors,  Lube Water Cooling  System,  Freeze
         Protection,  Switchgear, Motor Control Center, Transformers,  Lighting,
         Equipment  Building,  69-kv  Transmission  Line,  Power Supply,  Fence,
         Gates, Make-up Water Line, Metering Station and Canal.

27.      Circulating and Service Water Intake Motor Control Center.

28.      General Services Transformers for Area Lighting, Service Water Pump No.
         2, Freeze Protection, Fire Booster Pump, etc.

29.      Intake Area Transformer for Water Treatment  Building,  Fire Pump No. 1
         Service Water Pumps No. 1 and No. 3, Service  Building,  Area Lighting,
         Freeze Protection, etc.

30.      Station Lighting Transformers.

31.      Station Grounding and Cathodic Protection Systems, including Rectifier,
         Anode Bed, Ground Rods and Ground Cable.

32.      Freeze Protection Strip and Unit Heaters,  Heating Cables, Controls and
         Panels.

33.      Underground  Manholes,  Handholes  and Conduit,  including  Excavation,
         Backfill and Concrete Envelope.

34.      Miscellaneous  Power Plant  Equipment,  including  Portable  Cranes and
         Hoists, Fire  Extinguishers,  Vacuum Cleaner,  Weather Station,  Office
         Equipment,   Garage  Equipment,   Stores  Equipment,   Shop  Equipment,
         Laboratory Equipment, Small Tools, Kitchen Equipment, Testing Equipment
         and Forklift.

35.      69-kv and 230-kv Switchyard Common to River Pumping Station,  including
         Portion of Site Improvement,  Structures, Bus Conductors, Transformers,
         Oil  Circuit  Breakers,  Air  Switches,  Lighting  Protection,  Panels,
         Wiring, Conduits, Ducts, Manholes, Grounding and Shielding.

36.      ntra-site  Communication  (Gai-tronic and PAX Telephones Service Common
         Facilities).

37.      Spare Parts for Above Facilities.

RELATED FACILITIES:

1.       COAL HANDLING SYSTEM

         From the point of the Utah Mining termination at the surge bins down to
         the gates in the bottom of the bins,  including  chutes,  gates,  motor
         control center enclosure,
<PAGE>
         and surge bins. Includes writing, lighting,  foundations, dust control,
         CO2  blanketing,  electrical  feed and control,  structure,  stairs and
         platforms.

2.       MACHINE SHOP STRUCTURE

         Structure, foundation, lighting, wiring, doors, heating and ventilating
         equipment, and plumbing, toilet, and shower facilities.

3.       MODIFICATIONS TO SERVICE BUILDING

         Structural  changes,  walls,  doors,  windows,  heating and ventilating
         equipment, lighting, and wiring.

4.       VEHICLE BRIDGE OVER INTAKE CANAL

         Structure, guard rail, pipe supports and surfacing.

5.       REROUTE ACCESS ROAD THROUGH UNITS 4 AND 5 AREA

         Subbase, base material, surfacing and culverts.

6.       MODIFICATIONS TO RIVER PUMPING STATION AND MAKE-UP PIPELINE

         Structures,  foundations,  pumps, motors, electrical supply facilities,
         valves,  piping and control  apparatus  for pump station and  relocated
         section of 36-inch make-up pipeline, new 2-inch pipeline for river pump
         packing  gland water,  paving of roads and parking area and  barricades
         for protection from earth slides.

7.       MOBILE EQUIPMENT MAINTENANCE BUILDING

         Foundation,   floor  slab,   superstructure  and  lighting  and  repair
         equipment.

8.       MISCELLANEOUS POWER PLANT EQUIPMENT

         Small tools, machine shop tools,  laboratory equipment,  lockers, bins,
         shelving, portable fire fighting equipment, etc.

9.       ENLARGEMENT OF DISCHARGE CANAL

         Excavation to enlarge channel for discharging circulating water to lake
         and protection from erosion of channel walls.

10.      COMBUSTIBLES STORAGE BUILDING

         Foundation, floor slab, repairs to superstructure, and lighting.

11.      STATION MOBILE EQUIPMENT
<PAGE>
         Hydraulic  crane,   forklift  trucks,  small  electric  vehicles,   and
         bicycles.

12.      PLANT ACCESS ROAD

         Access road,  including  subbase  preparation,  base material,  asphalt
         surfacing,  culverts  and  drainage  facilities  from BIA  Canal to the
         station gate.

13.      COAL SAMPLING BUILDING AND EQUIPMENT

         Sampling building structure from point of connection with the surge bin
         structure including foundations,  stairs,  lighting,  power facilities,
         dust control  facilities,  hearing and ventilating  sampling equipment,
         sample preparation room with furnishings.

14.      WIND VELOCITY AND DIRECTION INSTRUMENTS

         Wind velocity and direction instruments, wiring conduit and recorders.

15.      RIVER WATER SOLIDS MEASURING EQUIPMENT

         Flow recorder,  conductivity  recorder and cells,  conduit,  wiring and
         supports.

16.      WAREHOUSE

         Structure,  floor slab,  lighting,  heating and ventilating  equipment,
         plumbing and office facilities.

17.      NEW ADMINISTRATION BUILDING

         Structure,  foundation,  lighting,  windows,  heating  and  ventilating
         equipment.

18.      GUARDHOUSE - MAIN AND SATELLITE

         Structure,   foundation,   lighting,  doors,  heating  and  ventilating
         equipment.

19.      SWITCHYARD SHOP

         Structures,   foundation,  lighting,  doors,  heating  and  ventilating
         equipment and office facilities.

20.      SHOP 4 & 5

         Structure, foundation, lighting, wiring, doors, heating and ventilating
         equipment,   plumbing,   toilet  and  shower   facilities   and  office
         facilities.

21.      COMMON BUILDING
<PAGE>
         Structure, foundation, lighting, wiring, doors, heating and ventilating
         equipment,  plumbing,  toilet and shower facilities,  office facilities
         and lunch room facilities.

22.      OVERHAUL SHOP

         Structure, foundation, lighting, wiring, doors, heating and ventilating
         equipment, plumbing, toilet facilities and office facilities.

23.      150 GALLON DEMINERALIZER

         Structure,  foundation, pumps, motors, electrical supply facilities and
         water treatment facilities.

24.      NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM (NPDES) TRENCH

         Excavated canal and concrete lined trench.

25.      BRINE CONCENTRATOR AND RELATED CAPITAL IMPROVEMENTS

         The brine concentrator and the capital improvements related thereto are
         part  of the SO2  removal  project  for  Units  4 and 5  including  the
         separator blowdown line and the chemical cleaning piping.
<PAGE>
                                  ATTACHMENT B

                               TRANSMISSION ASSETS

1.   Cholla/Saguaro 500kV Line and rights-of-way

2.   Cholla 500kV/345kV Switchyard and land rights

3.   Saguaro 500kV Substation and land rights

4.   Two Four Corners/Pinnacle Peak 345kV Lines and rights-of-way

5.   Undivided interest in Four Corners345kV Switchyard and Project Agreements

6.   Undivided interest in Pinnacle Peak 345kV Substation and land rights

7.   Undivided interest in Four Corners 500kV Switchyard and Project Agreements

8.   Preacher Canyon 345kV Substation and land rights

9.   Undivided interest in Two Navajo/Westwing  500kV Lines,  Project Agreements
     and land rights

10.  Undivided interest in Navajo 500kV Switchyard, Project Agreements, and land
     rights

11.  Undivided interest in Westwing 500kV Switchyard,  Project  Agreements,  and
     land rights

12.  Undivided  interest in Yavapai 500kV Substation,  Project  Agreements,  and
     land rights

13.  Navajo Project breakers in Moenkopi 500kV Switchyard and Project Agreements

14.  Navajo  Project  breakers,  series  capacitors,  and a line  reactor in the
     Moenkopi Switchyard

15.  Undivided interest in Two Palo Verde/Westwing 500kV Lines, agreements,  and
     rights-of-way

16.  Undivided  interest in Palo Verde 500kV  Switchyard,  agreements,  and land
     rights

17.  Undivided  interest  in  Interconnection   Agreement  with  Westwing  500kV
     Switchyard Participants

18.  Undivided  interest  in  Palo  Verde/Kyrene  500kV  Line,  agreements,  and
     rights-of-way

19.  Undivided  interest in Palo  Verde/North Gila 500kV Line,  agreements,  and
     rights-of-way
<PAGE>
20.  Undivided  interest  in  Interconnection  Agreement  with Palo Verde  500kV
     Switchyard Participants

21.  Undivided  interest in North Gila 500kV  Substation,  agreements,  and land
     rights

22.  Undivided  interest in Mead/Phoenix  500kV Line,  Project  Agreements,  and
     rights-of-way

23.  Undivided interest in Perkins 500kV Substation,  Phase Shifter, agreements,
     and land rights

24.  Undivided interest in Mead 500kV Substation, agreements and land rights

25.  Undivided  interest in Marketplace  500kV  Switchyard,  agreements and land
     rights

26.  Undivided  interest in Market  Place-Mead/Market  Place - McCullough  500kV
     Line, agreements, and rights-of-way

27.  Undivided  interest in McCullough 500kV  Switchyard,  agreements,  and land
     rights

28.  Four  Corners/El  Dorado  500kV  Line,  Moenkopi  Switchyard,  Transmission
     Service   Agreement   with  Southern   California   Edison   Company,   and
     rights-of-way

29.  At  substations,  the  ownership  transition  is at the  high  side  of the
     transformer, except Pinnacle Peak and Four Corners.
<PAGE>
                                  ATTACHMENT C

                            POWER PURCHASE AGREEMENT

                                   TERMS SHEET

PURCHASER:          Tucson Electric Power Company

SELLER:             Arizona Public Service Company

AMOUNT:             200MW

TERM:               4 years, beginning January 1, 2001

AVERAGE PRICE:
                                            $/MWh
                                            -----

                    2001                     $31
                    2002                     $32
                    2003                     $33
                    2004                     $35

                    Price to be shaped on an on-peak/off-peak  basis, based on a
                    minimum  load factor of 80% on-peak and 80%  off-peak  and a
                    maximum  load  factor  which  will be  determined  by mutual
                    agreement  of the parties in the Power  Purchase  Agreement.
                    The Seller may also offer  pricing for the purchase of power
                    in  excess  of  the  agreed  maximums.  The  Power  Purchase
                    Agreement  will  also  allow  the  minimum  obligations,  or
                    capacity  scheduled absent energy,  to be satisfied  through
                    the payment of dollars. The minimum annual load factor shall
                    be 80%.

CONTINGENCY:        The 200MW will be pro-rated over the three Navajo Generating
                    Station Units and the two Four Corners  Project  Units,  and
                    the  availability of power and energy to Purchaser under the
                    Power Purchase Agreement will be contingent on the operation
                    of each of the five units at a level  sufficient  to provide
                    its allocated share of the 200MW ("Unit Availability").


SCHEDULING:         The Power Purchase  Agreement will include  monthly  minimum
                    and maximum  capacity factors for scheduling  purposes.  The
                    Purhcaser  will have the right to schedule  capacity  and/or
                    energy on an hourly basis  pursuant to the pricing  concepts
                    described above.

BALANCING ACCOUNT:  A year-to-year  balancing account will be maintained through
                    which any short falls in energy taken by Purchaser  during a
                    calendar year
<PAGE>
                    will  roll  over  into the  following  calendar  year at the
                    previous year's price.
<PAGE>
                    CHANGES TO 1996 RATE REDUCTION AGREEMENT


MOOT SECTIONS (Not Extended by Instant Agreement):1

Sections 1, 5, 7, 8, 10, 11, 14


MODIFIED SECTIONS (Extended by Instant Agreement with Modifications):

Sections 2, 4, 6, 9, 12, 13


NON-MODIFIED SECTIONS (Extended by Instant Agreement without Modification):2

Sections 3, 15-17


- ---------------------------
     1      This includes Sections  referring to specific  one-time  obligations
     that have either been  fulfilled or which will be fulfilled  under terms of
     the 1996 Agreement without  extension.  It also includes sections that have
     already been superseded by a subsequent Commission order or orders.

     2      Or,  alternatively,  sections of the 1996 Rate  Reduction  Agreement
     that  would  have  extended  beyond  the  end  of the  rate  mechanism/rate
     moratorium provisions in 1999 irrespective of this Agreement.

                                    EXHIBIT C
<PAGE>
R14-2-1616

B.   Beginning  January 1, 1999,  an  Affected  Utility or Utility  Distribution
     Company shall not provide competitive services as defined herein, except as
     otherwise  authorized by these rules or by the  Commission.  However,  this
     rule does not  preclude  an  Affected  Utility's  or  Utility  Distribution
     Company's affiliate from providing competitive services. Nor does this rule
     preclude an Affected Utility or Utility  Distribution  Company from billing
     its own customers  for  distribution  service,  or from  providing  billing
     services to Electric Service  Providers in conjunction with its own billing
     or from providing meters for Load Profiled residential customers.  Nor does
     this rule require an Affected  Utility or Utility  Distribution  Company to
     separate such assets or services utilized in these circumstances.  Affected
     Utilities and Utility Distribution Companies shall provide, if requested by
     an ESP or  customer,  metering,  meter  reading,  billing,  and  collection
     services  within their service  territories  at tariffed rates to customers
     that do not have access to these services,  during the years 1999 and 2000,
     subject to the following  limitations.  The Affected  Utilities and Utility
     Distribution Companies shall be allowed to continue to provide metering and
     meter reading  services within their service  territories at tariffed rates
     until such time as two  competitive  ESPs are offering  such  services to a
     particular  customer class.  When two  competitive  ESPs are providing such
     services to a particular customer class, the Affected Utilities and Utility
     Distribution  Companies will no longer be allowed to offer the  services(s)
     to new competitive  customers in that customer  class,  but may continue to
     offer  the  services(s)   through   December  31,  2000,  to  the  existing
     competitive customers signed up prior to the commencement of service by the
     two competitive ESPs.

                                    Exhibit D
<PAGE>
                    BEFORE THE ARIZONA CORPORATION COMMISSION


JIM IRVIN
      Commissioner-Chairman
RENZ D. JENNINGS
      Commissioner
CARL J. KUNASEK
      Commissioner

IN THE MATTER OF THE APPLICATION     )       DOCKET NO. E-01345A-98-0473
OF ARIZONA PUBLIC SERVICE            )
COMPANY FOR APPROVAL OF ITS          )
RECOVERY                             )
                                     )
- -------------------------------------)
                                     )
IN THE MATTER OF THE FILING OF       )       DOCKET NO. E-01345A-97-0773
ARIZONA PUBLIC SERVICE COMPANY       )
PURSUANT TO A.A.C. R14-2-1601 ET SEQ.)
                                     )
- -------------------------------------)
                                     )
IN THE MATTER OF COMPETITION IN      )       DOCKET NO. RE-00000C-94-0165
THE PROVISION OF ELECTRIC            )
SERVICES THROUGHOUT THE STATE        )       Decision No. _____________
OF ARIZONA.                          )
                                     )       ORDER
- -------------------------------------)

Open Meeting

- ----------------
Phoenix, Arizona

                                FINDINGS OF FACT
                                ----------------

                  1.  Arizona  Public  Service  Company  ("APS")  is an  Arizona
corporation providing electric utility service within the State of Arizona.

                  2. The  rates and  charges  currently  in effect  for APS were
determined  to be just and  reasonable  in Decision  No.  59601,  as modified by
Decision Nos. 60216,  60225 and 61103.  Decision No. 59601 approved a Settlement
Agreement between Staff and APS which reduced rates.

                  3. On February 15, 1998,  APS filed its proposal for unbundled
tariffs.

                  4. On August 21,  1998,  APS filed its  proposal  for stranded
cost recovery.

                  5.  Staff  and APS  have  reached  agreement  on a  number  of
interrelated issues in the above dockets.

                  6. The  particulars  of the  agreement are  memorialized  in a
written Settlement  Agreement  ("Agreement") dated  ____________.  Staff and APS
filed the Agreement  with the

                                   Exhibit E
<PAGE>
                                                   DOCKET NO.  E-01345A-98-0473
                                                               E-01345A-97-0773
                                                               RE-00000C-94-0165

Commission  and  provided  all parties in the above  dockets  with copies of the
Agreement and proposed Order at the time of filing.

                  7. A procedural order governing the conduct of this proceeding
was issued.  The procedural  order did the following:  required that APS provide
notice by  publication  (or other media) of the hearings in these  matters,  and
established  procedures for intervention;  established procedures for discovery;
established  dates for Staff, APS and intervenors to file testimony or comments;
and set a hearing date at which all parties  would be able to present  witnesses
and evidence and cross-examine the witnesses of other parties.

                  8. All  intervenors  had the  opportunity to file testimony or
comments  regarding the Agreement,  and to present witnesses and exhibits and to
cross-examine witnesses presented by other parties.

                  9.  Commencing  on  _________,  a  hearing  was  held on these
matters at the Commission's offices in Phoenix, Arizona.

                  10. Staff and APS believe that the Agreement they have reached
is  consistent  with the best  interests of the parties and the public  interest
generally. A copy of the Agreement is attached hereto as Exhibit "A".

                               CONCLUSIONS OF LAW
                               ------------------

                  1. APS is a public service  corporation  within the meaning of
Article  15 of the  Arizona  Constitution  and Title 40 of the  Arizona  Revised
Statutes.

                  2. The Commission has jurisdiction  over APS, over the subject
matter of these proceedings,  and over the Agreement  submitted by the Staff and
APS.

                  3. APS provided notice of this matter in accordance with law.

                  4. The Agreement  resolves all matters  contained therein in a
manner which is just and reasonable, and which promotes the public interest.

                  5. The  Commission's  acceptance  and approval of the terms of
the Agreement between Staff and APS are in the public interest.

                  6. The rates and charges  contained in the  Agreement are just
and reasonable.

                                                     DECISION NO._______________

                                       2
                                   Exhibit E
<PAGE>
                                                   DOCKET NO.  E-01345A-98-0473
                                                               E-01345A-97-0773
                                                               RE-00000C-94-0165

                  7. APS should be directed to file tariffs  consistent with the
Agreement and the findings contained herein.

                  8. The waivers and approvals agreed to in the Agreement should
be approved.

                                      ORDER
                                      -----

                  IT IS  THEREFORE  ORDERED  that this  Order  incorporates  the
Agreement   executed  between  APS  and  Staff,  and  such  Order  is  expressly
conditioned thereon.

                  IT IS FURTHER  ORDERED  that the terms and  conditions  of the
Agreement be and the same are hereby adopted and approved.

                  IT IS FURTHER ORDERED that the waivers and approvals agreed to
in the Agreement are hereby approved.

                  IT IS FURTHER  ORDERED that APS is authorized  and directed to
file schedules of rates and charges consistent with the Findings and Conclusions
of this Order.

                  IT IS FURTHER  ORDERED that this Order shall become  effective
immediately.

                 BY ORDER OF THE ARIZONA CORPORATION COMMISSION

________________________________________________________________________________
Commissioner-Chairman               Commissioner                    Commissioner


                                    IN WITNESS WHEREOF, I, JACK ROSE,  Executive
                                    Secretary   of   the   Arizona   Corporation
                                    Commission,  have hereunto,  set my hand and
                                    caused the official seal of this  Commission
                                    to be affixed at the Capitol, in the City of
                                    Phoenix, this ___ day of _____________ 1998.


                                    _______________________________________
                                    JACK ROSE
                                    Executive Secretary


DISSENT__________________

                                                     DECISION NO._______________

                                       3
                                   Exhibit E


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