PINNACLE WEST CAPITAL CORP
10-Q, 1999-05-17
ELECTRIC SERVICES
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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      March 31, 1999
                               ------------------------

                                       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    1-8962
                       ------------

                       PINNACLE WEST CAPITAL CORPORATION
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

            Arizona                                              86-0512431
- -------------------------------                              -------------------
(State or other jurisdiction of                               (I.R.S. Employer
incorporation or organization)                               Identification No.)

400 E. Van Buren St., P.O. Box 52132, Phoenix, Arizona           85072-2132
- ------------------------------------------------------       -------------------
       (Address of principal executive offices)                  (Zip Code)

Registrant's telephone number, including area code:            (602) 379-2500
                                                             -------------------

- --------------------------------------------------------------------------------
              (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, no par value,
                 outstanding as of May 13, 1999:  84,822,997
<PAGE>
                                    Glossary

ACC - Arizona Corporation Commission

ACC Staff - Staff of the Arizona Corporation Commission

APS - Arizona Public Service Company

APS Energy Services - APS Energy Services Company, Inc.

Company - Pinnacle West Capital Corporation

DOE - United States Department of Energy

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"

EITF 98-10 - Emerging Issues Task Force Issue No. 98-10, "Accounting for
Contracts Involved in Energy Trading and Risk Management Activities"

El Dorado - El Dorado Investment Company

FERC - Federal Energy Regulatory Commission

ITC - Investment tax credit

MW - Megawatt, one million watts

1998 10-K - Pinnacle West Capital Corporation Annual Report on Form 10-K for the
fiscal year ended December 31, 1998

Palo Verde - Palo Verde Nuclear Generating Station

Pinnacle West - Pinnacle West Capital Corporation

Power Coordination Agreement - 1955 agreement between APS 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. 128 - Statement of Financial Accounting Standards No. 128, "Earnings
Per Share"

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

SunCor - SunCor Development Company

Territorial Agreement - 1955 agreement between APS and Salt River Project that
has provided exclusive retail service territories in Arizona for each party
<PAGE>
                                       -2-

                          PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS.

                        PINNACLE WEST CAPITAL CORPORATION
                   CONDENSED CONSOLIDATED STATEMENTS OF INCOME
                                   (Unaudited)
                (Dollars in thousands, except per share amounts)

                                                        Three Months Ended
                                                            March 31,
                                                       1999            1998
                                                   ------------    ------------
Operating Revenues
   Electric                                        $    414,154    $    380,423
   Real estate                                           24,533          34,161
                                                   ------------    ------------
Total                                                   438,687         414,584
                                                   ------------    ------------
Operating Expenses
   Fuel and purchased power                              99,241          73,917
   Utility operations and maintenance                    99,084          96,416
   Real estate operations                                22,235          30,236
   Depreciation and amortization                         96,910          92,830
   Taxes other than income taxes                         29,447          30,348
                                                   ------------    ------------
Total                                                   346,917         323,747
                                                   ------------    ------------
Operating Income                                         91,770          90,837
                                                   ------------    ------------
Other Income (Expense)
   Preferred stock dividend requirements of APS          (1,016)         (2,878)
   Net other income and expense                          (2,508)          4,359
                                                   ------------    ------------
Total                                                    (3,524)          1,481
                                                   ------------    ------------
Income Before Interest and Income Taxes                  88,246          92,318
                                                   ------------    ------------
Interest Expense
   Interest charges                                      40,769          42,922
   Capitalized interest                                  (4,074)         (4,656)
                                                   ------------    ------------
Total                                                    36,695          38,266
                                                   ------------    ------------

Income Before Income Tax                                 51,551          54,052
Income Taxes                                             20,861          22,966
                                                   ------------    ------------
Net Income                                         $     30,690    $     31,086
                                                   ============    ============

Average Common Shares Outstanding - Basic            84,669,800      84,785,309

Average Common Shares Outstanding  - Diluted         85,176,298      85,332,159

Earnings Per Average Common Share Outstanding:
   Net income - basic                              $       0.36    $       0.37
   Net income - diluted                            $       0.36    $       0.36


Dividends Declared Per Share                       $      0.325    $      0.300
                                                   ============    ============

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

                        PINNACLE WEST CAPITAL CORPORATION
                   CONDENSED CONSOLIDATED STATEMENTS OF INCOME
                                   (Unaudited)
                (Dollars in thousands, except per share amounts)

                                                        Twelve Months Ended
                                                             March 31,
                                                        1999            1998
                                                    -----------     -----------
Operating Revenues
  Electric                                          $ 2,040,129     $ 1,879,955
  Real estate                                           114,560         131,091
                                                    -----------     -----------
Total                                                 2,154,689       2,011,046
                                                    -----------     -----------
Operating Expenses
  Fuel and purchased power                              562,825         425,075
  Utility operations and maintenance                    416,709         407,834
  Real estate operations                                107,330         122,102
  Depreciation and amortization                         383,759         368,513
  Taxes other than income taxes                         116,005         121,650
                                                    -----------     -----------
Total                                                 1,586,628       1,445,174
                                                    -----------     -----------
Operating Income                                        568,061         565,872
                                                    -----------     -----------
Other Income (Expense)
  Preferred stock dividend requirements of APS           (7,841)        (12,055)
  Net other income and expense                           (6,258)          4,705
                                                    -----------     -----------
Total                                                   (14,099)         (7,350)
                                                    -----------     -----------
Income Before Interest and Income Taxes                 553,962         558,522
                                                    -----------     -----------
Interest Expense
 Interest charges                                       166,992         180,971
 Capitalized interest                                   (18,014)        (19,688)
                                                    -----------     -----------
Total                                                   148,978         161,283
                                                    -----------     -----------
Income Before Income Taxes                              404,984         397,239

Income Taxes                                            162,488         155,679
                                                    -----------     -----------

Net Income                                          $   242,496     $   241,560
                                                    ===========     ===========

Average Common Shares Outstanding - Basic            84,745,736      84,853,589

Average Common Shares Outstanding - Diluted          85,351,957      85,383,767

Earnings Per Average Common Share Outstanding:
 Net income - basic                                 $      2.86     $      2.85
 Net income - diluted                               $      2.84     $      2.83

Dividends Declared Per Share                        $     1.250     $     1.150
                                                    ===========     ===========

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

                        PINNACLE WEST CAPITAL CORPORATION
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                                   (Unaudited)

                                     ASSETS
                             (Thousands of Dollars)

                                                      March 31,     December 31,
                                                        1999           1998
                                                     ----------    ------------
Current Assets
   Cash and cash equivalents                         $   25,709     $   20,538
   Customer and other receivables--net                  198,608        233,876
   Accrued utility revenues                              58,936         67,740
   Materials and supplies                                71,232         69,074
   Fossil fuel                                           13,009         13,978
   Deferred income taxes                                  4,052          3,999
   Other current assets                                  54,601         47,594
                                                     ----------     ----------
      Total current assets                              426,147        456,799
                                                     ----------     ----------
Investments and Other Assets
   Real estate investments--net                         332,454        331,021
   Other assets                                         255,285        236,562
                                                     ----------     ----------
      Total investments and other assets                587,739        567,583
                                                     ----------     ----------
Utility Plant
   Electric plant in service and held for future use  7,299,849      7,265,604
   Less accumulated depreciation and
     amortization                                     2,886,117      2,814,762
                                                     ----------     ----------
      Total                                           4,413,732      4,450,842
   Construction work in progress                        242,084        228,643
   Nuclear fuel, net of amortization                     57,386         51,078
                                                     ----------     ----------
      Net utility plant                               4,713,202      4,730,563
                                                     ----------     ----------
Deferred Debits
   Regulatory asset for income taxes                    387,616        400,795
   Rate synchronization cost deferral                   289,857        303,660
   Other deferred debits                                367,397        365,146
                                                     ----------     ----------
      Total deferred debits                           1,044,870      1,069,601
                                                     ----------     ----------

Total Assets                                         $6,771,958     $6,824,546
                                                     ==========     ==========

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

                        PINNACLE WEST CAPITAL CORPORATION
                      CONDENSED CONSOLIDATED BALANCE SHEETS
                                   (Unaudited)

                             LIABILITIES AND EQUITY
                             (Thousands of Dollars)

                                                       March 31,    December 31,
                                                         1999          1998
                                                      ----------    ------------
Current Liabilities
   Accounts payable                                   $  104,628    $  155,800
   Accrued taxes                                         117,235        62,520
   Accrued interest                                       27,957        31,866
   Short-term borrowings                                 112,725       178,830
   Current maturities of long-term debt                  157,646       168,045
   Customer deposits                                      28,348        28,510
   Other current liabilities                              23,013        14,632
                                                      ----------    ----------
      Total current liabilities                          571,552       640,203
                                                      ----------    ----------

Long-Term Debt Less Current Maturities                 2,170,640     2,048,961
                                                      ----------    ----------

Deferred Credits and Other
   Deferred income taxes                               1,334,840     1,343,536
   Deferred investment tax credit                         25,293        27,345
   Unamortized gain - sale of utility plant               76,643        77,787
   Other                                                 431,076       428,122
                                                      ----------    ----------
      Total deferred credits and other                 1,867,852     1,876,790
                                                      ----------    ----------

Commitments and contingencies (Notes 5, 8, 9, and 11)

Minority Interests
   Non-redeemable preferred stock of APS                      --        85,840
                                                      ----------    ----------
   Redeemable preferred stock of APS                          --         9,401
                                                      ----------    ----------

Common Stock Equity
   Common stock, no par value                          1,546,055     1,550,643
   Retained earnings                                     615,859       612,708
                                                      ----------    ----------
      Total common stock equity                        2,161,914     2,163,351
                                                      ----------    ----------

Total Liabilities and Equity                          $6,771,958    $6,824,546
                                                      ==========    ==========

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

                        PINNACLE WEST CAPITAL CORPORATION
                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (Unaudited)
                             (THOUSANDS OF DOLLARS)

                                                          Three Months Ended
                                                               March 31,
                                                           1999          1998
                                                        ---------     ---------
CASH FLOWS FROM OPERATING ACTIVITIES
 Net Income                                             $  30,690     $  31,086

   Items not requiring cash
      Depreciation and amortization                        96,910        92,830
      Nuclear fuel amortization                             8,269         8,417
      Deferred income taxes--net                           (7,870)      (11,419)
      Deferred investment tax credit                       (2,052)       (2,426)
      Other--net                                              926         1,521
   Changes in current assets and liabilities
      Customer and other receivables--net                  35,268        44,468
      Accrued utility revenues                              8,804         9,028
      Materials, supplies and fossil fuel                  (1,189)       (3,501)
      Other current assets                                 (7,007)       (2,585)
      Accounts payable                                    (52,168)      (37,749)
      Accrued taxes                                        54,715        53,384
      Accrued interest                                     (3,909)       (4,509)
      Other current liabilities                             8,969        10,679
   Decrease (increase) in land held                        (1,256)       11,556
   Other--net                                                (191)        6,113
                                                        ---------     ---------
Net Cash Flow Provided By Operating Activities            168,909       206,893
                                                        ---------     ---------
CASH FLOWS FROM INVESTING ACTIVITIES
   Capital expenditures                                   (67,467)      (60,848)
   Capitalized interest                                    (4,074)       (4,656)
   Other--net                                              (9,082)        2,325
                                                        ---------     ---------
Net Cash Flow Used For Investing Activities               (80,623)      (63,179)
                                                        ---------     ---------
CASH FLOWS FROM FINANCING ACTIVITIES
   Issuance of long-term debt                             127,928        99,375
   Short-term borrowings--net                             (66,105)      (49,750)
   Dividends paid on common stock                         (27,534)      (25,436)
   Repayment of long-term debt                            (17,575)     (162,216)
   Redemption of preferred stock                          (96,499)      (10,599)
   Other--net                                              (3,330)         (453)
                                                        ---------     ---------
Net Cash Flow Used For Financing Activities               (83,115)     (149,079)
                                                        ---------     ---------
Net Cash Flow                                               5,171        (5,365)
Cash and Cash Equivalents at Beginning of Period           20,538        27,484
                                                        ---------     ---------
Cash and Cash Equivalents at End of Period              $  25,709     $  22,119
                                                        =========     =========
Supplemental Disclosure of Cash Flow Information:
   Cash paid during the period for:
      Interest, net of amounts capitalized              $  37,434     $  40,942
      Income taxes                                      $      --     $   4,600


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

                        PINNACLE WEST CAPITAL CORPORATION

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1. The  condensed  consolidated  financial  statements  include the  accounts of
Pinnacle  West and its  subsidiaries:  APS,  SunCor,  El Dorado  and APS  Energy
Services.  All significant  intercompany balances have been eliminated.  We have
reclassified  certain  prior  year  amounts  to  conform  to  the  current  year
presentation.

2.  Our  unaudited  condensed  consolidated  financial  statements  reflect  all
adjustments  which we believe are  necessary  for the fair  presentation  of our
financial  position and results of operations for the periods  presented.  These
adjustments are of a normal  recurring  nature.  We suggest that these condensed
consolidated  financial statements and notes to condensed consolidated financial
statements be read along with the consolidated financial statements and notes to
consolidated financial statements included in our 1998 10-K.

3. Weather  conditions can have a significant impact on APS' results for interim
periods.  For this  and  other  reasons,  results  for  interim  periods  do not
necessarily represent results to be expected for the year.

4. See  "Liquidity  and Capital  Resources" in Part I, Item 2 of this report for
changes in capitalization for the three months ended March 31, 1999.

5. Regulatory Matters -- Electric Industry Restructuring

STATE

     PROPOSED  RETAIL  ELECTRIC  COMPETITION  RULES In  December  1996,  the ACC
adopted rules that provide a framework for the  introduction  of retail electric
competition in Arizona.  The rules, as amended,  became  effective on August 10,
1998,  and on December 10, 1998,  the ACC adopted the amended  rules without any
modifications  that  would have a  significant  impact on APS.  We believe  that
certain provisions of the 1996 ACC rules and the amended rules are deficient and
APS has filed lawsuits to protect its legal rights  regarding the 1996 rules and
the amended  rules.  These  lawsuits are pending but two related  cases filed by
other  utilities  have  been  partially  decided  in a manner  adverse  to those
utilities' positions.

On January 11,  1999,  the ACC issued an order which  stayed the amended  rules,
granted  reconsideration  of the  decision  to make  the  rules  permanent,  and
directed the hearing  division of the ACC to  establish a  procedural  order for
further action on these rules.  The order also granted  waivers from  compliance
with the rules for APS, and all affected utilities.

On February 5, 1999, the ACC Hearing Division issued recommendations for changes
to the amended rules. The recommended  changes to the amended rules were further
modified by a Procedural Order of the ACC Hearing Division dated March 12, 1999.
On April 14, 1999, the ACC voted to notice, for further rulemaking,  the Hearing
Division's
<PAGE>
                                      -8-

recommended changes, with certain exceptions. The proposed rules approved by the
ACC for further rulemaking consideration include the following major provisions:

*    They would apply to virtually all Arizona electric  utilities  regulated by
     the ACC, including APS.

*    The rules require each affected  utility,  including APS, to make available
     at  least  20% of its  1995  system  retail  peak  demand  for  competitive
     generation  supply  beginning  when the ACC makes a final  decision on each
     utility's  stranded  costs and  unbundled  rates (Final  Decision  Date) or
     January 1, 2001, whichever is earlier, and 100% beginning January 1, 2001.

*    Subject to the 20% requirement,  all utility  customers with single premise
     loads of one megawatt or greater will be eligible for competitive  electric
     services on the Final Decision Date. Customers with single premise loads of
     40  kilowatts  or greater  may  aggregate  loads to meet this one  megawatt
     requirement.

*    When  effective,  residential  customers  will be  phased  in at 1 1/4% per
     quarter  calculated  beginning  on  January  1,  1999,  subject  to the 20%
     requirement above.

*    Electric  service  providers  that  get  Certificates  of  Convenience  and
     Necessity  (CC&Ns)  from  the ACC can  supply  only  competitive  services,
     including   electric   generation,   but  not  electric   transmission  and
     distribution.

*    Affected utilities must file ACC tariffs with separate pricing for electric
     services provided for noncompetitive services.

*    ACC shall  allow a  reasonable  opportunity  for  recovery  of  unmitigated
     stranded costs (see "Stranded Costs" below).

*    Absent an ACC waiver,  prior to January 1, 2001, each affected utility must
     transfer  all  competitive  generation  assets  and  services  either to an
     unaffiliated party or to a separate corporate affiliate.

The  proposed  rules  approved  on April  14,  1999  will not  become  final and
effective  until  approved by the ACC following  formal  rulemaking  proceedings
under Arizona law. In compliance  with statutory  procedural  requirements,  ACC
oral proceedings on the matter are scheduled for June 14 and June 17, 1999.

We  cannot  currently  predict  when or if the  amended  rules  will be  further
modified,  when the stay of the  amended  rules will be lifted,  or when  retail
electric competition will be introduced in Arizona.

     STRANDED  COSTS On June 22, 1998,  the ACC issued an Order on stranded cost
determination and recovery. APS believes that certain provisions of the stranded
cost order 
<PAGE>
                                      -9-

are  deficient  and in August 1998,  APS filed two lawsuits to protect its legal
rights relating to the order.

On February 5, 1999, the ACC Hearing Division issued recommended  changes to the
June 1998 stranded cost order. These recommended changes were further amended by
an ACC  Procedural  Order dated March 12, 1999. On April 14, 1999, the ACC voted
to adopt the Hearing  Division's  changes to the June 1998  stranded cost order.
The amended  stranded cost order became  effective on April 27, 1999, and allows
each affected utility to choose from any one of five options for the recovery of
stranded costs:

*    Net Revenues Lost Methodology is the difference between generation revenues
     under  traditional  regulation and generation  revenues under  competition.
     This option provides for declining recovery  percentages for stranded costs
     over a  five-year  recovery  period.  Regulatory  assets  are  to be  fully
     recovered  under  their  presently  authorized  amortization  schedule.  In
     accordance  with a 1996  regulatory  agreement,  the  ACC  accelerated  the
     amortization  of  substantially   all  of  APS'  regulatory  assets  to  an
     eight-year period that ends June 30, 2004.

*    Divestiture/Auction   Methodology   allows  a  utility  to  divest  all  or
     substantially  all of its generating  assets,  including  regulatory assets
     associated  with  generation,  in  order  to  collect  100  percent  of the
     difference  between  net sales  price and book value of  generating  assets
     divested over a ten-year period, with no return on the unamortized balance.

*    Financial Integrity  Methodology allows a utility  "sufficient  revenues to
     meet minimum financial ratios" for a period of ten years.

*    Settlement Methodology allows a settlement to be agreed upon by the ACC and
     a utility.

*    Any  combination  of the above if shown to be in the best  interests of all
     affected parties.

     LEGISLATIVE  INITIATIVES  An Arizona joint  legislative  committee  studied
electric utility industry  restructuring issues in 1996 and 1997. In conjunction
with that study, the 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 has been subsequently  decided by lower courts in favor of the ACC in four
separate lawsuits, two of which are unrelated.

In May 1998, a law was enacted to facilitate  implementation  of retail electric
competition in Arizona. The law includes the following major provisions:

*    Arizona's largest government-operated electric utility (Salt River Project)
     and, at their option,  smaller municipal  electric systems must (i) make at
     least 20% of their 1995 retail peak demand  available  to electric  service
     providers 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   comparable  to
<PAGE>
                                      -10-

     those already  applicable to public service  corporations  for establishing
     the terms, conditions,  and pricing of electric services as well as certain
     other decisions affecting retail electric competition;

*    describes the factors which form the basis of  consideration  by Salt River
     Project in determining stranded costs; and

*    metering and meter reading services must 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 legislative session on certain competitive issues.

GENERAL We believe that further ACC  decisions,  legislation  at the Arizona and
federal levels, and perhaps amendments to the Arizona  Constitution (which would
require a vote of the people) will  ultimately  be required  before  significant
implementation  of retail  electric  competition  can lawfully occur in Arizona.
Until the manner of implementation of competition, including addressing stranded
costs,  is determined,  we cannot  accurately  predict the impact of full retail
competition on our financial position,  cash flows, or results of operation.  As
competition in the electric  industry  continues to evolve,  we will continue to
evaluate strategies and alternatives that will position us to compete in the new
regulatory environment.

FEDERAL  The  Energy  Policy  Act of 1992 and  recent  rulemakings  by FERC have
promoted increased competition in the wholesale electric power markets. APS 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

APS prepares its financial  statements in accordance with 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.  APS'
existing  regulatory orders and the current regulatory  environment  support its
accounting  practices related to regulatory assets, which amounted to about $900
million at March 31, 1999. Under the 1996 regulatory agreement (see Note 6), the
ACC accelerated the amortization of substantially  all of APS' regulatory assets
to an eight-year period that will end June 30, 2004.

During 1997, the Emerging  Issues Task Force (EITF) of the Financial  Accounting
Standards  Board (FASB) issued EITF 97-4. EITF 97-4 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  rules have been  proposed  for  transitioning  generation  services to
competition,  there are many unresolved  issues. APS continues to apply SFAS No.
71 to its
<PAGE>
                                      -11-

generation  operations.  If rate  recovery  of  regulatory  assets  is no longer
probable, whether due to competition or regulatory action, APS would be required
to write off the remaining  balance as an extraordinary  charge to expense.

6. 1996 Regulatory Agreement

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

*    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.

*    Recovery of  substantially  all of APS' present  regulatory  assets through
     accelerated  amortization  over an eight-year period that will end June 30,
     2004,  increasing  annual  amortization by approximately  $120 million ($72
     million after income taxes).

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

*    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.

*    Infusion of $200 million of common  equity into APS by the parent  company,
     in annual payments of $50 million starting in 1996.

Based on the price reduction formula, 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. APS expects to file with the ACC for
another  retail price  decrease of  approximately  $10.8 million  annually ($6.5
million after income  taxes) to become  effective  July 1, 1999.  The amount and
timing of the price decrease are subject to ACC approval.  This will be the last
price decrease under the 1996 regulatory agreement.
<PAGE>
                                      -12-

7. Agreement with Salt River Project

     On April 25, 1998,  APS entered into a  Memorandum  of Agreement  with Salt
River Project in anticipation of, and to facilitate,  the opening of the Arizona
electric industry. The Agreement contains the following major components:

*    Both parties would amend the  Territorial  Agreement to remove any barriers
     to the provision of  competitive  electricity  supply and  non-distribution
     services.

*    Both  parties  would amend the Power  Coordination  Agreement  to lower the
     price  that  APS  will  pay  Salt  River  Project  for  purchased  power by
     approximately  $17  million  (pretax)  during  the first full year that the
     Agreement is effective and by lesser annual  amounts  during the next seven
     years.

*    Both parties agreed on certain  legislative  positions  regarding  electric
     utility restructuring at the state and federal level.

Certain provisions of the Agreement  (including those relating to the amendments
of the Territorial Agreement and the Power Coordination  Agreement) are affected
by the timing of the  introduction of  competition.  See Note 5. On February 18,
1999, the ACC approved the Agreement.

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,  APS
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 APS'
29.1% interest in the three Palo Verde units, APS' 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  stabilization  and  decontamination.  APS 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. In the first quarter of 1999 we adopted EITF 98-10, "Accounting for Contracts
Involved in Energy Trading and Risk Management  Activities." EITF 98-10 requires
energy  trading  contracts to be measured at fair value as of the balance  sheet
date with the gains and losses included in earnings and separately  disclosed in
the financial  statements or footnotes.  The effects of adopting EITF 98-10 were
not material to our financial statements.
<PAGE>
                                      -13-

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

10. SFAS No. 128,  "Earnings Per Share" requires the  presentation of both basic
and  diluted  earnings  per  share  on the  consolidated  financial  statements.
Dilutive stock options  increased  average common shares  outstanding by 506,498
and  546,850  for  the  three-month  period  ended  March  31,  1999  and  1998,
respectively;  and 606,221 and 530,178 for the  twelve-month  period ended March
31, 1999 and 1998, respectively,  but had no effect on net income. Total average
common shares  outstanding for the purposes of calculating  diluted earnings per
share were 85,176,298 and 85,332,159 for the three-month  period ended March 31,
1999 and 1998, respectively;  and 85,351,957 and 85,383,767 for the twelve-month
period ended March 31, 1999 and 1998, respectively.

11. On April 23,  1999,  we entered  into a  memorandum  of  understanding  with
Calpine  Corporation,  an  independent  power  producer  located  in  San  Jose,
California,  for a potential $220 million,  500 MW expansion at the site of APS'
West Phoenix  Power Plant.  The joint project is the second phase of a potential
750 MW  expansion  at West  Phoenix.  The first  phase  includes  a $60  million
repowering  of an  existing  unit to create a 130 MW combined  cycle  unit.  The
remainder of the expansion involves  repowering other existing units at the West
Phoenix site. Assuming approvals are granted, construction is scheduled to begin
in mid-2000, with commercial operation of the first phase in mid-2001 and of the
second phase in late 2001.
<PAGE>
                                      -14-

                        PINNACLE WEST CAPITAL CORPORATION

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

In this  section,  we explain  our  results  of  operations,  general  financial
condition,  and outlook for Pinnacle West and our subsidiaries:  APS, SunCor, El
Dorado, and APS Energy Services, including:

*    the changes in our earnings for the periods presented
*    the factors  impacting our  business,  including  competition  and electric
     industry restructuring
*    the effects of regulatory agreements on our results
*    our capital needs and resources and
*    Year 2000 technology issues.

We suggest  this  section be read  along  with the 1998  10-K.  Throughout  this
Management's  Discussion  and  Analysis of  Financial  Condition  and Results of
Operations,  we refer to specific "Notes" in the Notes to Condensed Consolidated
Financial Statements. These Notes add further details to the discussion.

OPERATING RESULTS

     OPERATING  RESULTS - THREE-MONTH  PERIOD ENDED MARCH 31, 1999 COMPARED WITH
     THREE-MONTH PERIOD ENDED MARCH 31, 1998

Consolidated  net income for the three  months  ended  March 31,  1999 was $30.7
million  compared with $31.1 million for the same period in the prior year.  Net
income decreased slightly in the three-month  comparison because higher earnings
at APS and lower  financing costs at the parent company were more than offset by
lower earnings at the other subsidiaries.

APS  earnings for the first  quarter of 1999 were $32.8  million  compared  with
$29.1 million for the same period in the prior year.  APS earnings  increased in
the  three-month  comparison  primarily  because of an increase in customers and
increased  contributions from power marketing and trading activities,  partially
offset by milder weather, a retail price reduction,  and higher depreciation and
amortization expense. See Note 6 for information on the price reduction.

     Electric operating revenues increased $34 million because of:

*    increased power marketing and trading revenues ($34 million)
*    increases in the number of customers ($12 million) and
*    miscellaneous factors ($3 million).
<PAGE>
                                      -15-

As mentioned above,  these positive factors were partially offset by the effects
of milder weather ($11 million) and reductions in retail prices ($4 million).

Power marketing and trading activities are predominantly  short-term opportunity
wholesale  sales.  The  increase  in  power  marketing  revenues  resulted  from
increased  activity  in  Western  bulk  power  markets.  The  increase  in power
marketing and trading revenues was accompanied by related increases in purchased
power expenses.

Depreciation and amortization  expense increased $4 million because APS had more
plant in service.

Parent company financing costs decreased $2 million because we paid down debt.

SunCor's  earnings  decreased  $2 million in the  three-month  period  primarily
because of a decrease in net land sales.

El Dorado's earnings decreased $3 million because of investment sales in 1998.

     OPERATING RESULTS - TWELVE-MONTH  PERIOD ENDED MARCH 31, 1999 COMPARED WITH
     TWELVE-MONTH PERIOD ENDED MARCH 31, 1998

Net  income for the  twelve  months  ended  March 31,  1999 was  $242.5  million
compared with $241.6  million for the same period in the prior year.  Net income
increased  slightly  because of  increased  earnings at APS and lower  financing
costs at the parent company,  partially offset by lower contributions from other
subsidiaries.

APS  earnings  were $249.3  million for the twelve  months  ended March 31, 1999
compared  with $242.7  million for the twelve  months ended March 31, 1998.  APS
earnings  increased  primarily  because of an increase in  customers,  increased
contributions from power marketing and trading  activities,  and lower financing
costs. In the comparison, these positive factors more than offset the effects of
milder weather,  two fuel-related  settlements  recorded in the third quarter of
1997,  retail price  reductions that became effective July 1, 1997 and 1998, and
higher  depreciation  and  amortization  expense.  See  Note  6  for  additional
information about the price reductions.

Electric operating revenues increased $160 million primarily because of:

*    increased power marketing and trading revenues ($138 million)
*    increases in the number of customers and the amount of electricity  used by
     customers ($80 million) and
*    miscellaneous factors ($7 million).

As mentioned above,  these positive factors were partially offset by the effects
of milder weather ($47 million) and reductions in retail prices ($18 million).
<PAGE>
                                      -16-

Power marketing and trading activities are predominantly  short-term opportunity
wholesale  sales.  The  increase  in  power  marketing  revenues  resulted  from
increased  activity in Western bulk power markets,  higher prices, and increased
sales to large  customers in  California.  The increase in power  marketing  and
trading  revenues  was  accompanied  by related  increases  in  purchased  power
expenses.

The two fuel-related  settlements increased pretax earnings in the twelve months
ended March 31, 1998 by approximately $21 million. The income statement reflects
these settlements as reductions in fuel expense and as other income.

Depreciation and amortization expense increased $15 million because APS had more
plant in service.

APS  decreased  its  financing  costs by $9 million  primarily  because of lower
amounts of outstanding debt and preferred stock and lower interest rates.

Parent  company  financing  costs  decreased $9 million as we paid down debt and
took advantage of lower interest rates.

El Dorado's earnings decreased $7 million in the twelve-month  period because of
investment sales in 1998 and 1997.

     INVESTMENT TAX CREDIT AMORTIZATION

     As  part  of  a  1994  rate   settlement  with  the  ACC,  APS  accelerated
amortization  of  substantially  all deferred ITCs over a five-year  period that
ends  on  December  31,  1999.  The   amortization  of  ITCs  decreases   annual
consolidated income tax expense by approximately $24 million. Beginning in 2000,
no further benefits will be reflected in income tax expense.

LIQUIDITY AND CAPITAL RESOURCES

     PARENT COMPANY

     The  parent  company's  cash  requirements  and its  ability  to fund those
requirements  are discussed  under "Capital Needs and Resources" in Management's
Discussion and Analysis of Financial  Condition and Results of Operation in Part
II, Item 7 of the 1998 10-K.

     During the  three-months  ended March 31, 1999, the parent company redeemed
approximately  $7 million of its long-term  debt with cash from  operations  and
short-term borrowings.
<PAGE>
                                      -17-

     As a result  of the 1996  regulatory  agreement  (see Note 6),  the  parent
company has invested $50 million in APS in 1996,  1997, and 1998 and will invest
a similar amount in 1999.

     On April 23,  1999,  we entered  into a memorandum  of  understanding  with
Calpine  Corporation,  an  independent  power  producer  located  in  San  Jose,
California,  for a potential $220 million,  500 MW expansion at the site of APS'
West Phoenix  Power Plant.  The joint project is the second phase of a potential
750 MW  expansion  at West  Phoenix.  The first  phase  includes  a $60  million
repowering  of an  existing  unit to create a 130 MW combined  cycle  unit.  The
remainder of the expansion involves  repowering other existing units at the West
Phoenix site. Assuming approvals are granted, construction is scheduled to begin
in mid-2000, with commercial operation of the first phase in mid-2001 and of the
second phase in late 2001. We are also considering additional expansion over the
next several years,  which may result in additional  expenditures.  We currently
believe that there will be additional  opportunities to expand our investment in
generating  assets in the next five years.  It is expected  that these and other
generating  assets would be organized in a  non-regulated  subsidiary  under the
parent company.

     The Board  declared a quarterly  dividend of 32.5 cents per share of common
stock,  payable June 1, 1999 to shareholders of record on May 3, 1999,  totaling
approximately $27.6 million.

     APS

     For the three months ended March 31, 1999, APS incurred  approximately  $68
million in capital expenditures, which is approximately 21% of the most recently
estimated 1999 capital expenditures. APS' projected capital expenditures for the
next three years are: 1999,  $328 million;  2000,  $317 million;  and 2001, $300
million.  These  amounts  include  about $30 - $35 million each year for nuclear
fuel expenditures.

     APS' long-term debt and preferred stock redemption requirements and payment
obligations  on a  capitalized  lease for the next three years are:  1999,  $285
million; 2000, $115 million; and 2001, $2 million. During the three months ended
March 31, 1999, APS redeemed approximately $10 million of long-term debt and all
$96  million  (including  premiums)  of  its  preferred  stock  with  cash  from
operations and long-term and  short-term  debt. In February 1999 APS issued $125
million  of  unsecured  long-term  debt.  As a  result  of the  1996  regulatory
agreement (see Note 6),  Pinnacle West invested $50 million in APS in 1996, 1997
and 1998 and will invest a similar amount in 1999.

     Although  provisions  in APS' first  mortgage bond  indenture,  articles of
incorporation,  and ACC financing orders establish maximum amounts of additional
first  mortgage  bonds  that APS may  issue,  APS does not  expect  any of these
provisions to limit its ability to meet its capital requirements.

<PAGE>
                                      -18-

YEAR 2000 READINESS DISCLOSURE

     OVERVIEW As the year 2000 approaches,  many companies face problems because
many computer systems and equipment will not properly  recognize  calendar dates
beginning with the year 2000. We are addressing the Year 2000 issue as described
below. APS initiated a comprehensive  company-wide Year 2000 program during 1997
to review and resolve all Year 2000 issues in mission  critical systems (systems
and  equipment  that are key to the  power  production  and  delivery  function,
health,  and safety) in a timely  manner to ensure the  reliability  of electric
service to our customers.  This included a company-wide awareness program of the
Year  2000  issue.  APS  has an  internal  audit/quality  review  team  that  is
periodically  reviewing  the  individual  Year 2000 projects and their Year 2000
readiness.

     The  following  chart shows Year 2000  readiness  of our  mission  critical
systems as of April 30, 1999:

                               Inventory     Assessment    Remediation & Testing
                               ---------     ----------    ---------------------
APS                              100%           100%               90%(1)
- ---                              ---            ---               ---
Pinnacle West and
  other subsidiaries
  (excluding APS)                100%           100%               85%(2)

(1)  Estimated to be at 100% by June 30, 1999, except as discussed below.
(2)  Estimated to be at 100% by September 30, 1999.

     DISCUSSION  APS has been actively  implementing  and replacing  systems and
technology since 1995 for general  business reasons  unrelated to the Year 2000,
and these actions have resulted in  substantially  all of its major  information
technology  (IT)  systems  becoming  Year 2000 ready.  The major IT systems that
were, and are being, implemented and replaced include the following:

*    Work Management

*    Materials Management

*    Energy Management System

*    Payroll

*    Financial

*    Human Resources

*    Trouble Call Management System

*    Computer and Communications Network Upgrades

*    Geographic Information System

*    Customer Information System and

*    Palo Verde Site Work Management System.
<PAGE>
                                      -19-

     We and our  subsidiaries  have made,  and will  continue  to make,  certain
modifications  to computer  hardware  and  software  systems  and  applications,
including  IT and non-IT  systems,  in an effort to ensure  they are  capable of
handling  changing  business  needs,  including  dates  in  the  year  2000  and
thereafter.  In  addition,  other APS IT systems and non-IT  systems,  including
embedded  technology and real-time  process control systems,  are being analyzed
for potential modifications.

     Pinnacle  West  and  its   subsidiaries   have   inventoried  and  assessed
essentially all mission critical IT and non-IT systems and equipment. APS is 90%
complete and Pinnacle West and its other  subsidiaries are 85% complete with the
remediation and testing of these systems. Remediation and testing is expected to
be completed by June 30, 1999 for all mission critical  systems,  except for (i)
those items that can only be completed during maintenance outages at Palo Verde,
which will be completed for the last unit, which is  substantially  identical to
the other two  units,  during  the last  half of 1999,  and (ii) the  continuous
emissions  monitoring  systems for APS' five fossil  plants,  which will also be
completed during the last half of 1999.

     APS  currently  estimates  that  it will  spend  approximately  $5  million
relating to Year 2000 issues,  about $3 million of which has been spent to date.
This includes an estimated allocation of payroll costs for APS employees working
on Year 2000 issues, and costs for consultants,  hardware,  and software.  We do
not  separately   track  other  internal  costs.   This  does  not  include  any
expenditures  incurred  since 1995 to implement and replace  systems for reasons
unrelated  to the Year 2000,  as discussed  above.  Our cost to address the Year
2000 issue is charged to operating  expenses as incurred and has not had, and is
not expected to have, a material adverse effect on our financial position,  cash
flows, or results of operations. We expect to fund this cost with available cash
balances and cash provided by operations.

     Pinnacle West and its subsidiaries are communicating with their significant
suppliers,  business partners, other utilities, and large customers to determine
the  extent to which  they may be  affected  by these  third  parties'  plans to
remediate  their own Year 2000 issues in a timely manner.  These  companies have
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.

     APS 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 APS and
other  utilities  in the  western  United  States.  APS'  operational  plans are
complete. However, APS cannot currently predict the effect on APS if the systems
of these other companies are not Year 2000 ready.
<PAGE>
                                      -20-

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

     We are  working to develop  our own  contingency  plans to handle Year 2000
issues,  including  the most  reasonably  likely worst case  scenario  discussed
above,  and we expect these plans to be completed by June 30, 1999. As discussed
above, APS has also been working with NERC and WSCC to develop contingency plans
related to grid operation.

COMPETITION AND ELECTRIC INDUSTRY RESTRUCTURING

     See Note 5 for  discussions  of  competitive  developments  and  regulatory
accounting.  See Note 7 for a  discussion  of a  proposed  amendment  to a Power
Coordination  Agreement with Salt River Project that APS estimates  would reduce
its pretax costs for purchased  power by  approximately  $17 million  during the
first full year that the  amendment is effective  and by lesser  annual  amounts
during the next seven years.

RATE MATTERS

     See Note 6 for a discussion  of a proposed  price  reduction  that would be
effective July 1, 1999.

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 APS 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; Year 2000
issues; the successful completion of a large-scale construction project; and the
strength of the real estate market.

     These  factors  and the other  matters  discussed  above  may cause  future
results  to differ  materially  from  historical  results,  or from  results  or
outcomes we currently expect or seek.
<PAGE>
                                      -21-

ITEM 3. MARKET RISKS

Our  operations  include  managing  market risks  related to changes in interest
rates,  commodity  prices,  and investments held by the nuclear  decommissioning
trust fund.

Our major financial  market risk exposure is changing  interest rates.  Changing
interest  rates will affect  interest  paid on variable  rate debt and  interest
earned  by the  nuclear  decommissioning  trust  fund.  Our  policy is to manage
interest rates through the use of a combination of fixed and floating rate debt.
The nuclear  decommissioning fund also has risks associated with changing market
values of equity  investments.  Nuclear  decommissioning  costs are recovered in
rates.

APS  utilizes  a variety of  derivative  instruments  including  exchange-traded
futures,  options,  and swaps as part of its overall risk management  strategies
and for  trading  purposes.  In  order  to  reduce  the  risk of  adverse  price
fluctuations in the electricity and natural gas markets, APS enters into futures
and/or option  transactions to hedge certain natural gas held in storage as well
as certain expected purchases and sales of natural gas and electricity.

APS is exposed to credit losses in the event of  non-performance  or non-payment
by  counterparties.  APS uses a credit management  process to assess and monitor
the financial viability of counterparties.

Our exposure to market risks, including those of APS, has not changed materially
from December 31, 1998 to March 31, 1999.
<PAGE>
                                      -22-

                           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 APS' construction and financing programs.

     COMPETITION AND ELECTRIC INDUSTRY RESTRUCTURING

     See Note 5 of Notes to Condensed  Consolidated 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.

     SPENT NUCLEAR FUEL AND WASTE DISPOSAL

     As previously  reported,  on July 24, 1998, APS filed a Petition for Review
regarding   DOE's   obligation  to  begin  accepting  spent  nuclear  fuel.  See
"Generating  Fuel and Purchased Power - Nuclear Fuel Supply - Spent Nuclear Fuel
and Waste  Disposal" in Part I, Item 1 of the 1998 10-K. On April 16, 1999,  the
court dismissed APS' petition, holding that APS is bound by the court's previous
ruling in another  case.  That court held that DOE has an  obligation  to accept
spent  nuclear  fuel as of  January  31,  1998,  but did not order DOE to do so.
Instead,  the court held that APS must  follow the  provisions  of its  standard
contract for relief.

     ENVIRONMENTAL MATTERS

     PURPORTED  NAVAJO  ENVIRONMENTAL  REGULATION  As  previously  reported,  on
February 19,  1999,  the EPA  promulgated  regulations  setting  forth the EPA's
approach  to issuing  Federal  permits to covered  stationary  sources on Indian
reservations,   pursuant  to  the  Clean  Air  Act   Amendments  of  1990.   See
"Environmental  Matters - Purported Navajo Environmental  Regulation" in Part I,
Item 1 of our 1998 10-K.  On April 15, 1999,  APS filed a Petition for Review in
the United States Court of Appeals for the District of Columbia.  ARIZONA PUBLIC
SERVICE COMPANY V. UNITED STATES ENVIRONMENTAL PROTECTION AGENCY, No. 99-1146.

     EPA  ENVIRONMENTAL  REGULATION On April 22, 1999,  the EPA announced  final
regional haze rules. See "Environmental Matters - EPA Environmental Regulation -
Clean Air Act" in our 1998 10-K. These new regulations require states to submit,
by 2008,  implementation plans containing requirements to eliminate all man-made
emissions causing  visibility  impairment in certain specified areas,  including
the  Golden  Circle  of  National  Parks  in  the  Colorado  Plateau.  The  2008
implementation plans must also include  consideration and potential  application
of best available  retrofit  technology  ("BART") for major  stationary  sources
which came into  operation  between  August  1962
<PAGE>
                                      -23-

and August 1977, such as the Navajo Generating  Station,  Cholla Power Plant and
Four Corners Power Plant.

     The nine western  states and tribes that  participated  in the Grand Canyon
Visibility  Transport  Commission  process  will  have the  option  to follow an
alternate   implementation  plan  and  schedule  for  areas  considered  by  the
Commission.   Under  this   option,   those   states  and  tribes  would  submit
implementation  plans by 2003,  which would  incorporate the emission  reduction
scheme adopted in the Commission's  recommendations.  Any states and tribes that
implement this option will also have to submit revised  implementation  plans in
2008 to address  visibility in certain  specified areas that were not considered
by the Commission.

     Because  Arizona  has the  discretion  to choose  between  the  national or
Commission  options and a variety of pollution controls to meet the requirements
of the regional  haze rules,  the actual  impact on APS cannot be  determined at
this time.

ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

     (a) Exhibits

         Exhibit No.          Description
         -----------          -----------

           27.1          Financial Data Schedule

     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:

<TABLE>
<CAPTION>

EXHIBIT NO.   DESCRIPTION                    ORIGINALLY FILED AS EXHIBIT:   FILE NO.(a)  DATE EFFECTIVE
- -----------   -----------                    ----------------------------   ----------   --------------
<S>           <C>                            <C>                            <C>             <C>
 10.1         Articles of Incorporation      19.1 to the Company's          1-8962          11-14-88
              restated as of July 29, 1988   September 30, 1988
                                             Form 10-Q Report

 10.2         Bylaws, amended as of          3.1 to the Company's 1995      1-8962          4-1-96
              February 21, 1996              Form 10-K Report
</TABLE>

- --------
(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>
                                      -24-

     (b) Reports on Form 8-K

     During the  quarter  ended  March 31,  1999,  and the  period  from April 1
through May 17, 1999, we filed the following reports on Form 8-K:

     Report  dated  January 11, 1999  relating to (i) the ACC hearing  officers'
recommended  changes to the amended rules  regarding the  introduction of retail
electric  competition  in Arizona and to the June 1998  stranded  cost order and
(ii) action by the Arizona Supreme Court vacating its order staying ACC hearings
on the proposed  settlement  agreement  and  dismissing  the Attorney  General's
action.
<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.


                                               PINNACLE WEST CAPITAL CORPORATION
                                                          (Registrant)



Dated:  May 17, 1999                           By: George A. Schreiber, Jr.
                                                   -----------------------------
                                                   George A. Schreiber, Jr.
                                                   President and
                                                   Chief Financial Officer
                                                   (Principal Financial Officer
                                                   and Officer Duly Authorized
                                                   to sign this Report)

<TABLE> <S> <C>

<ARTICLE> UT
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               MAR-31-1999
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                    4,713,202
<OTHER-PROPERTY-AND-INVEST>                    587,739
<TOTAL-CURRENT-ASSETS>                         426,147
<TOTAL-DEFERRED-CHARGES>                     1,044,870
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                               6,771,958
<COMMON>                                     1,546,055
<CAPITAL-SURPLUS-PAID-IN>                            0
<RETAINED-EARNINGS>                            615,859
<TOTAL-COMMON-STOCKHOLDERS-EQ>               2,161,914
                                0
                                          0
<LONG-TERM-DEBT-NET>                         2,170,640
<SHORT-TERM-NOTES>                                   0
<LONG-TERM-NOTES-PAYABLE>                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                 112,725
<LONG-TERM-DEBT-CURRENT-PORT>                  157,646
                            0
<CAPITAL-LEASE-OBLIGATIONS>                          0
<LEASES-CURRENT>                                     0
<OTHER-ITEMS-CAPITAL-AND-LIAB>               2,169,033
<TOT-CAPITALIZATION-AND-LIAB>                6,771,958
<GROSS-OPERATING-REVENUE>                      438,687
<INCOME-TAX-EXPENSE>                            20,861
<OTHER-OPERATING-EXPENSES>                     247,676
<TOTAL-OPERATING-EXPENSES>                     346,917
<OPERATING-INCOME-LOSS>                         91,770
<OTHER-INCOME-NET>                             (3,524)
<INCOME-BEFORE-INTEREST-EXPEN>                       0
<TOTAL-INTEREST-EXPENSE>                        36,695
<NET-INCOME>                                    30,690
                          0
<EARNINGS-AVAILABLE-FOR-COMM>                   30,690
<COMMON-STOCK-DIVIDENDS>                        27,534
<TOTAL-INTEREST-ON-BONDS>                       27,761
<CASH-FLOW-OPERATIONS>                         168,909
<EPS-PRIMARY>                                     0.36
<EPS-DILUTED>                                     0.36
        

</TABLE>


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