AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 25, 2002
                                                    REGISTRATION NO. 333-_______
================================================================================
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM S-3
                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933

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

         ARIZONA                                                86-0011170
(State of Incorporation)                                     (I.R.S. Employer
                                                          Identification Number)

                             400 North Fifth Street
                             Phoenix, Arizona 85004
                                 (602) 250-1000
    (Address, including zip code, and telephone number, including area code,
                  of registrant's principal executive offices)

                                MATTHEW P. FEENEY
                              Snell & Wilmer L.L.P.
                               One Arizona Center
                             Phoenix, Arizona 85004
                                 (602) 382-6239
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

     Approximate date of commencement of proposed sale to the public: From time
to time after the effective date of this Registration Statement, as determined
by market conditions and other factors.

     If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [X]

     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]

     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [ ]

     If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [ ]

                         CALCULATION OF REGISTRATION FEE



==================================================================================================================
                                                          Proposed Maximum       Proposed Maximum      Amount of
  Title of Each Class of               Amount to be        Offering Price       Aggregate Offering    Registration
Securities to be Registered            Registered(1)       Per Unit(3)(4)         Price(1)(3)(4)       Fee(5)(7)
------------------------------------------------------------------------------------------------------------------
                                                                                      
Debt Securities(6)                          (2)                  (2)                    (2)
Preferred Stock(6)                          (2)                  (2)                    (2)
Common Stock(6)(7)                          (2)                  (2)                    (2)
Purchase Contracts(6)                       (2)                  (2)                    (2)
Units(6)                                    (2)                  (2)                    (2)
Total(8)                               $600,000,000             100%               $600,000,000         $36,800
==================================================================================================================


(1)  In United States dollars or the equivalent thereof in one or more foreign
     currencies or units of two or more foreign currencies or composite
     currencies (such as European Currency Units). The aggregate initial
     offering price of the above-referenced securities (collectively, the
     "Securities") registered hereby will not exceed $600,000,000. Such amount
     represents the principal amount of any Debt Securities issued at their
     principal amount, the issue price rather than the principal amount of any
     Debt Securities issued at an original issue discount, the liquidation
     preference (or, if different, the issue price) of any Preferred Stock, the
     issue price of any Common Stock, the issue price of any Purchase Contracts
     and the issue price of any Units.

(2)  Omitted pursuant to General Instruction II(D) of Form S-3 under the
     Securities Act of 1933, as amended (the "Securities Act").

(3)  Estimated solely for the purpose of determining the registration fee
     pursuant to Rule 457(o) under the Securities Act. The proposed maximum
     initial offering price per unit will be determined, from time to time, by
     the registrant in connection with the issuance of the securities.

(4)  Exclusive of accrued interest or dividends, if any.

(5)  Calculated pursuant to Rule 457(o) under the Securities Act. See Note (6).

(6)  Includes such indeterminate principal amount or number of Debt Securities,
     shares of Preferred Stock, shares of Common Stock, Purchase Contracts, and
     Units, and such indeterminate amount of Securities as may be issued upon
     conversion of, or in exchange for, or upon exercise of, convertible or
     exchangeable Securities (including any Securities issuable upon stock
     splits and similar transactions pursuant to Rule 416 under the Securities
     Act) and such indeterminate amount of Securities as may be issuable upon
     settlement of Purchase Contracts, in each case as may be offered pursuant
     to this Registration Statement.

(7)  Includes Pinnacle West Capital Corporation preferred share purchase rights.
     Prior to the occurrence of certain events, purchase rights for Pinnacle
     West Capital Corporation Series A Participating Preference Stock will not
     be evidenced separately from the Pinnacle West Capital Corporation Common
     Stock.

(8)  The $600,000,000 of Securities offered hereby is comprised of $200,000,000
     of securities registered pursuant to Registration Statement No. 333-52476
     initially filed December 21, 2000 and included herein under Rule 429, for
     which the filing fee was previously paid, and $400,000,000 registered
     hereby. Accordingly, the filing fee paid herewith is $36,800 (($600,000,000
     - $200,000,000) multiplied by .000092).

     THIS REGISTRATION STATEMENT, WHICH IS A NEW REGISTRATION STATEMENT, ALSO
CONSTITUTES POST-EFFECTIVE AMENDMENT NO. 1 TO REGISTRATION STATEMENT NO.
333-52476 OF PINNACLE WEST CAPITAL CORPORATION, WHICH WAS DECLARED EFFECTIVE ON
JANUARY 11, 2001. SUCH POST-EFFECTIVE AMENDMENT SHALL HEREAFTER BECOME EFFECTIVE
CONCURRENTLY WITH THE EFFECTIVENESS OF THIS REGISTRATION STATEMENT AND IN
ACCORDANCE WITH SECTION 8(C) OF THE SECURITIES ACT OF 1933. PURSUANT TO RULE 429
UNDER THE SECURITIES ACT OF 1933, THE PROSPECTUSES FILED AS PART OF THIS
REGISTRATION STATEMENT ALSO CONSTITUTE PROSPECTUSES FOR REGISTRATION STATEMENT
NO. 333-52476; THE $200,000,000 AGGREGATE AMOUNT OF SECURITIES REMAINING UNSOLD
FROM REGISTRATION STATEMENT NO. 333-52476 WILL BE COMBINED WITH THE DEBT
SECURITIES, PREFERRED STOCK, COMMON STOCK, PURCHASE CONTRACTS AND UNITS TO BE
REGISTERED PURSUANT TO THIS REGISTRATION STATEMENT TO ENABLE PINNACLE WEST
CAPITAL CORPORATION TO OFFER AN AGGREGATE AMOUNT OF $600,000,000 OF SECURITIES
PURSUANT TO THE COMBINED PROSPECTUSES.

     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933, OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.

                                       2

The information in this prospectus is not complete and may be changed. We may
not sell these securities until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to sell these securities and is not soliciting an offer to buy these securities
in any state where an offer or sale is prohibited.

                 Subject To Completion, Dated November 25, 2002

Prospectus

                        PINNACLE WEST CAPITAL CORPORATION

                                  $600,000,000

                                 DEBT SECURITIES
                                 PREFERRED STOCK
                                  COMMON STOCK
                               PURCHASE CONTRACTS
                                      UNITS

     We may offer and sell these securities from time to time in one or more
offerings. This prospectus provides you with a general description of the
securities we may offer.

     Each time we sell these securities, we will provide a supplement to this
prospectus that contains specific information about the offering and the terms
of the securities. The supplement may also add, update, or change information
contained in this prospectus. You should carefully read this prospectus and any
supplement, as well as the documents incorporated or deemed to be incorporated
by reference in this prospectus, before you invest in any of these securities.

     SEE "RISK FACTORS" BEGINNING ON PAGE 3 OF THIS PROSPECTUS TO READ ABOUT
CERTAIN FACTORS YOU SHOULD CONSIDER.

     Our principal executive offices are located at 400 North Fifth Street,
Phoenix, AZ 85004. Our telephone number is (602) 250-1000.

     Our common stock is listed on the New York Stock Exchange under the symbol
"PNW."

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ADEQUACY OR ACCURACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.


     We may offer and sell these securities directly to purchasers, through
agents, dealers, or underwriters as designated from time to time, or through a
combination of these methods. Additional information on our plan of distribution
can be found inside under "Plan of Distribution." We will describe the plan of
distribution for any securities in the relevant prospectus supplement. If any
agents, dealers or underwriters are involved in the sale of any securities, the
relevant prospectus supplement will set forth any applicable commissions or
discounts.

     This prospectus may not be used to consummate sales of these securities
unless accompanied by the applicable prospectus supplement.

             The date of this prospectus is ___________ _____, 2002

                                TABLE OF CONTENTS

                                                                            PAGE
                                                                            ----
RISK FACTORS...................................................................3
ABOUT THIS PROSPECTUS..........................................................8
FORWARD-LOOKING STATEMENTS.....................................................8
WHERE YOU CAN FIND MORE INFORMATION...........................................10
THE COMPANY...................................................................11
RATIO OF EARNINGS TO FIXED CHARGES (a)........................................12
USE OF PROCEEDS...............................................................12
GENERAL DESCRIPTION OF THE SECURITIES.........................................12
DESCRIPTION OF DEBT SECURITIES................................................13
DESCRIPTION OF PREFERRED STOCK................................................23
DESCRIPTION OF COMMON STOCK...................................................26
DESCRIPTION OF THE PURCHASE CONTRACTS.........................................32
DESCRIPTION OF UNITS..........................................................33
PLAN OF DISTRIBUTION..........................................................33
EXPERTS.......................................................................35
LEGAL OPINIONS................................................................35

     Unless otherwise indicated, currency amounts in this prospectus and any
prospectus supplement are stated in United States dollars ("$," "dollars," "U.S.
dollars," or "U.S.$").

                                       2

                                  RISK FACTORS

     Before purchasing our debt securities you should carefully consider the
following risk factors as well as the other information contained in this
prospectus and the information incorporated by reference in order to evaluate an
investment in our securities.

     THE CONSTRUCTION COSTS OF THE GENERATION FACILITIES OF PINNACLE WEST ENERGY
CORPORATION ("PINNACLE WEST ENERGY") COULD NEGATIVELY IMPACT OUR RESULTS OF
OPERATIONS.

     Pinnacle West Energy, one of our wholly-owned subsidiaries, has completed
or has under construction about 1,700 MW of natural gas-fired generating
capacity at an estimated cost of about $1 billion. In addition, Pinnacle West
Energy has begun construction of the 570 MW Silverhawk plant in Nevada at an
estimated cost of approximately $400 million. On November 22, 2002, Pinnacle
West Energy announced the decision to cancel Redhawk Units 3 and 4. The two
530-megawatt natural gas-fired generators were scheduled to begin producing
electricity by early 2007. As a result of the plant cancellation, we expect to
record a charge of approximately $50 million before income taxes ($30 million
after-tax or $0.35 per share) in the fourth quarter of 2002. Pinnacle West
Energy's expansion plans will be sized to meet cash flow and market conditions.

     Pinnacle West Energy has funded and is currently funding its capital
requirements through capital infusions from us. We finance those infusions
through debt financings and internally generated cash. We financed Pinnacle West
Energy's generation expansion program premised upon Pinnacle West Energy's
receipt of the generation assets of Arizona Public Service Company ("APS"), our
public utility subsidiary, by the end of 2002, as previously required by the
Arizona Corporation Commission's ("ACC") electric competition rules and the 1999
settlement agreement.

     Through early-2004, we will need to refinance or repay approximately $790
million of bridge debt incurred by us to finance Pinnacle West Energy's
construction of generation plants built since 1999 to serve APS customers. In
addition, we must finance the ongoing capital expenditures for the Pinnacle West
Energy construction program. Failure to refinance or repay a portion of this
bridge debt at the subsidiary level could adversely impact our credit ratings.

     The ACC's reversal of the generation asset transfer requirement results in
Pinnacle West Energy being unable to obtain investment grade credit ratings.
This, in turn, precludes Pinnacle West Energy from accessing capital markets to
finance its ongoing construction program or to refinance the bridge financing
provided by us to fund the construction of Pinnacle West Energy generation
assets or from effectively competing in the wholesale markets.

     On September 16, 2002, APS filed an application with the ACC requesting the
ACC to allow APS to borrow up to $500 million and to lend the proceeds to
Pinnacle West Energy or to us; to guarantee up to $500 million of Pinnacle West
Energy's or our debt, or a combination of both, not to exceed $500 million in
the aggregate. On November 8, 2002, APS filed an Interim Financing Application
with the ACC requesting the ACC to permit APS to (a) make short-term advances to
Pinnacle West in the form of an inter-affiliate line of credit in the amount of
$125 million or (b) guarantee $125 million of Pinnacle West's short-term debt.
On November 22, 2002, the ACC approved APS' request to make the $125 million
interim loan or guarantee, subject to various conditions, including (a) APS
acquiring a $125 million security interest in certain Pinnacle West Energy
assets and (b) the ACC examining regulatory insulation between APS and its
affiliates in connection with the ACC's consideration of APS' $500 million
financing application. We are unable to predict what actions, if any, the ACC
might propose or take in connection with this examination.

     Our credit ratings could be adversely affected if APS' $500 million
financing application is not approved by the ACC. On November 4, 2002, Standard
and Poor's Corporation lowered the Company's senior unsecured debt rating from
"BBB" to "BBB-."

                                       3

     In the event that the ACC does not approve the $500 million financing
application , we believe that we would be able to access the capital markets or
take other steps to refinance or repay the outstanding bridge debt and continue
to meet our ongoing capital requirements, although there can be no assurance
that we would be able to do so. See the following two Risk Factors.

     IF WE ARE NOT ABLE TO ACCESS CAPITAL AT COMPETITIVE RATES, OUR ABILITY TO
IMPLEMENT OUR FINANCIAL STRATEGY WILL BE ADVERSELY AFFECTED.

     We rely on access to both short-term money markets and longer-term capital
markets as a significant source of liquidity and for capital requirements not
satisfied by the cash flow from our operations. We believe that we will maintain
sufficient access to these financial markets based upon current credit ratings.
However, certain market disruptions or a downgrade of our credit rating may
increase our cost of borrowing or adversely affect our ability to access one or
more financial markets. Such disruptions could include:

     *    an economic downturn;

     *    capital market conditions generally;

     *    the bankruptcy of an unrelated energy company;

     *    market prices for electricity and gas;

     *    terrorist attacks or threatened attacks on our facilities or unrelated
          energy companies; or

     *    the overall health of the utility industry.

     Changes in economic conditions could result in higher interest rates, which
would increase our interest expense on our debt and reduce funds available to us
for our current plans. Additionally, an increase in our leverage could adversely
affect us by:

     *    increasing the cost of future debt financing;

     *    increasing our vulnerability to adverse economic and industry
          conditions;

     *    requiring us to dedicate a substantial portion of our cash flow from
          operations to payments on our debt, which would reduce funds available
          to us for operations, future business opportunities or other purposes;
          and

     *    placing us at a competitive disadvantage compared to our competitors
          that have less debt.

         See the preceding and following Risk Factor.

     A SIGNIFICANT REDUCTION IN OUR CREDIT RATINGS COULD MATERIALLY AND
ADVERSELY AFFECT OUR BUSINESS, FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

     We cannot be sure that any of our current ratings will remain in effect for
any given period of time or that a rating will not be lowered or withdrawn
entirely by a rating agency if, in its judgment, circumstances in the future so
warrant. Any downgrade could increase our borrowing costs which would diminish
our financial results. We would likely be required to pay a higher interest rate
in future financings, and our potential pool of investors and funding sources
could decrease. A downgrade could require additional support in the form of
letters of credit or cash or other collateral and otherwise have a material
adverse effect on our business, financial condition and results of operations.
If our short-term ratings were to be lowered, it could limit our access to the
commercial paper market. We note that the

                                       4

ratings from credit  agencies are not  recommendations  to buy, sell or hold our
securities and that each rating should be evaluated  independently  of any other
rating. See the preceding two Risk Factors.

     THE DEBT SECURITIES WILL BE STRUCTURALLY SUBORDINATED TO THE DEBT
SECURITIES AND OTHER OBLIGATIONS OF OUR SUBSIDIARIES.

     Because we are structured as a holding company, all existing and future
debt and other liabilities of our subsidiaries will be effectively senior in
right of payment to our debt securities. None of the indentures under which we
may issue debt securities limits our ability or the ability of our subsidiaries
to incur additional debt in the future. The assets and cash flows of our
subsidiaries will be available, in the first instance, to service their own debt
and other obligations. Our ability to have the benefit of their assets and cash
flows, particularly in the case of any insolvency or financial distress
affecting our subsidiaries, would arise only through our equity ownership
interests in our subsidiaries and only after their creditors have been
satisfied. As discussed in the first Risk Factor above, in connection with the
ACC's consideration of APS' $500 million financing application, the ACC will
examine regulatory insulation between APS and its affiliates. We are unable to
predict what actions, if any, the ACC might propose or take in connection with
this examination.
     THE USE OF DERIVATIVE CONTRACTS IN THE NORMAL COURSE OF OUR BUSINESS COULD
RESULT IN FINANCIAL LOSSES THAT NEGATIVELY IMPACT OUR RESULTS OF OPERATIONS.

     Our operations include managing market risks related to commodity prices,
changes in interest rates, and investments held by our pension and nuclear
decommissioning trust funds. We are exposed to the impact of market fluctuations
in the price and transportation costs of electricity, natural gas, coal, and
emissions allowances. We employ established procedures to manage risks
associated with these market fluctuations by utilizing various commodity
derivatives, including exchange-traded futures and options and over-the-counter
forwards, options, and swaps. As part of our overall risk management program, we
enter into derivative transactions to hedge purchases and sales of electricity,
fuels, and emissions allowances and credits. The changes in market value of such
contracts have a high correlation to price changes in the hedged commodity.

     We are exposed to losses in the event of nonperformance or nonpayment by
counterparties. We use a risk management process to assess and monitor the
financial exposure of all counterparties. Despite the fact that the majority of
trading counterparties are rated as investment grade by the credit rating
agencies, there is still a possibility that one or more of these companies could
default, resulting in a material adverse impact on our earnings for a given
period.

     Changing interest rates will affect interest paid on variable-rate debt and
interest earned by our pension and nuclear decommissioning trust funds. Our
policy is to manage interest rates through the use of a combination of
fixed-rate and floating-rate debt. The pension and nuclear decommissioning fund
also have risks associated with changing market values of equity investments.
Pension and nuclear decommissioning costs are recovered in regulated electricity
prices.

     WE ARE SUBJECT TO COMPLEX GOVERNMENT REGULATION WHICH MAY HAVE A NEGATIVE
IMPACT ON OUR BUSINESS AND OUR RESULTS OF OPERATIONS.

     We are, directly and through our subsidiaries, subject to governmental
regulation which may have a negative impact on our business and results of
operations. We are a "holding company" within the meaning of the Public Utility
Holding Company Act ("PUHCA"); however, we are exempt from the provisions of
PUHCA by virtue of our filing of an annual exemption statement with the
Securities and Exchange Commission ("SEC").

     APS, our wholly-owned electric utility, is subject to comprehensive
regulation by several federal, state and local regulatory agencies, which
significantly influence its operating environment and may affect its ability to
recover costs from utility customers. APS is required to have numerous permits,
approvals

                                       5

and certificates from the agencies that regulate APS' business. The
Federal Energy Regulatory Commission ("FERC"), the Nuclear Regulatory Commission
("NRC"), the Environmental Protection Agency ("EPA"), and the ACC regulate many
aspects of our utility operations, including siting and construction of
facilities, customer service and the rates that APS can charge customers. We
believe the necessary permits, approvals and certificates have been obtained for
our existing operations. However, we are unable to predict the impact on our
business and operating results from the future regulatory activities of any of
these agencies. Changes in regulations or the imposition of additional
regulations could have an adverse impact on our results of operations.

     DEREGULATION OR RESTRUCTURING OF THE ELECTRIC INDUSTRY MAY RESULT IN
INCREASED COMPETITION, WHICH COULD HAVE A SIGNIFICANT ADVERSE IMPACT ON OUR
BUSINESS AND OUR FINANCIAL RESULTS.

     Retail competition and the unbundling of regulated energy could have a
significant adverse financial impact on us due to an impairment of assets, a
loss of retail customers, lower profit margins or increased costs of capital. In
1999, the ACC approved rules that provide a framework for the introduction of
retail electric competition in Arizona. Under the rules, as modified by a 1999
settlement agreement among APS and various parties, APS was required to transfer
all of its competitive electric assets and services to an unaffiliated party or
parties or to a separate corporate affiliate or affiliates no later than
December 31, 2002. Pursuant to an ACC order dated September 10, 2002, the ACC
unilaterally modified the 1999 settlement agreement and directed APS to cancel
any plans to divest interests in any of its generating assets. The ACC further
established a requirement that APS competitively procure, at a minimum, any
power required for its retail customers that APS cannot produce from its
existing generating assets. The ACC ordered the ACC staff and interested parties
to develop a competitive procurement process by March 1, 2003. These regulatory
developments and legal challenges to the rules have raised considerable
uncertainty about the status and pace of retail electric competition in Arizona.
Although some very limited retail competition existed in APS' service area in
1999 and 2000, there are currently no active retail competitors offering
unbundled energy or other utility services to APS' customers. As a result, we
cannot predict when, and the extent to which, additional competitors will
re-enter APS' service territory. These matters are discussed in detail in the
documents filed by us with the SEC.

     As a result of changes in federal law and regulatory policy, competition in
the wholesale electricity market has greatly increased due to a greater
participation by traditional electricity suppliers, non-utility generators,
independent power producers, and wholesale power marketers and brokers. This
increased competition could affect our load forecasts, plans for power supply
and wholesale energy sales and related revenues. As a result of the changing
regulatory environment and the relatively low barriers to entry, we expect
wholesale competition to increase. As competition continues to increase, our
financial position and results of operations could be adversely affected.

     THE UNCERTAIN OUTCOME REGARDING THE CREATION OF REGIONAL TRANSMISSION
ORGANIZATIONS, OR RTOS, MAY MATERIALLY IMPACT OUR OPERATIONS, CASH FLOWS OR
FINANCIAL POSITION.

     In a December 1999 order, the FERC set minimum characteristics and
functions that must be met by utilities that participate in RTOs. The
characteristics for an acceptable RTO include independence from market
participants, operational control over a region large enough to support
efficient and nondiscriminatory markets, and exclusive authority to maintain
short-term reliability. On October 16, 2001, APS and other owners of electric
transmission lines in the southwest filed with the FERC a request for a
declaratory order confirming that their proposal to form WestConnect RTO, LLC
would satisfy the FERC's requirements for the formation of an RTO. On October
10, 2002, the FERC issued an order finding that the WestConnect proposal, if
modified to address specified issues, could meet the FERC's RTO requirements and
provide the basic framework for a standard market design for the southwest. In
its order, the FERC also stated that its approval of various WestConnect
provisions addressed in the order would not be overturned or affected by the
final rule the FERC intends to ultimately adopt in response to its July 31, 2002
Notice of Proposed Rulemaking regarding a standard market design for the
electric utility industry. FERC did not address all of the proposed WestConnect
provisions in its order and some could still be affected by a final rule in the
pending rulemaking proceeding. We cannot currently predict what, if

                                       6

any, impact there may be to the WestConnect proposal or to us if the FERC adopts
the  proposed  rule.  On November  12,  2002,  APS and the other  owners filed a
request for rehearing and clarification on portions of the October 10 order.

     WE ARE SUBJECT TO NUMEROUS ENVIRONMENTAL LAWS AND REGULATIONS WHICH MAY
INCREASE OUR COST OF OPERATIONS, IMPACT OUR BUSINESS PLANS, OR EXPOSE US TO
ENVIRONMENTAL LIABILITIES.

     We are subject to numerous environmental regulations affecting many aspects
of our present and future operations, including air emissions, water quality,
wastewater discharges, solid waste, and hazardous waste. These laws and
regulations can result in increased capital, operating, and other costs,
particularly with regard to enforcement efforts focused on power plant emissions
obligations. These laws and regulations generally require us to obtain and
comply with a wide variety of environmental licenses, permits, inspections and
other approvals. Both public officials and private individuals may seek to
enforce applicable environmental laws and regulations. We cannot predict the
outcome (financial or operational) of any related litigation that may arise.

     In addition, we may be a responsible party for environmental clean up at
sites identified by a regulatory body. We cannot predict with certainty the
amount and timing of all future expenditures related to environmental matters
because of the difficulty of estimating clean-up costs. There is also
uncertainty in quantifying liabilities under environmental laws that impose
joint and several liability on all potentially responsible parties.

     We cannot be sure that existing environmental regulations will not be
revised or that new regulations seeking to protect the environment will not be
adopted or become applicable to us. Revised or additional regulations that
result in increased compliance costs or additional operating restrictions,
particularly if those costs are not fully recoverable from APS' customers, could
have a material adverse effect on our results of operations.

     RECENT EVENTS IN THE ENERGY MARKETS THAT ARE BEYOND OUR CONTROL MAY HAVE
NEGATIVE IMPACTS ON OUR BUSINESS.

     As a result of the energy crisis in California during the summer of 2001,
the recent volatility of natural gas prices in North America, the filing of
bankruptcy by the Enron Corporation, and investigations by governmental
authorities into energy trading activities, companies generally in the regulated
and unregulated utility businesses have been under an increased amount of public
and regulatory scrutiny. The capital markets and ratings agencies also have
increased their level of scrutiny. We believe that we are complying with all
applicable laws, but it is difficult or impossible to predict or control what
effect these or related issues may have on our business or our access to the
capital markets.

     OUR RESULTS OF OPERATIONS CAN BE ADVERSELY AFFECTED BY MILDER WEATHER.

     Weather conditions directly influence the demand for electricity and affect
the price of energy commodities. Electric power demand is generally a seasonal
business. In Arizona, demand for power peaks during the hot summer months, with
market prices also peaking at that time. As a result, our overall operating
results fluctuate substantially on a seasonal basis. In addition, we have
historically sold less power, and consequently earned less income, when weather
conditions are milder. As a result, unusually mild weather could diminish our
results of operations and harm our financial condition.

     THERE ARE INHERENT RISKS IN THE OPERATION OF NUCLEAR FACILITIES, SUCH AS
ENVIRONMENTAL, HEALTH AND FINANCIAL RISKS AND THE RISK OF TERRORIST ATTACK.

     Through APS, we have an ownership interest in and operate the Palo Verde
Nuclear Generating Station ("Palo Verde"). Palo Verde is subject to
environmental, health and financial risks such as the ability to dispose of
spent nuclear fuel, the ability to maintain adequate reserves for
decommissioning, potential liabilities arising out of the operation of these
facilities, and the costs of securing the facilities

                                       7

against  possible  terrorist  attacks.  We maintain  decommissioning  trusts and
external  insurance  coverage to minimize our financial exposure to these risks;
however,  it is  possible  that  damages  could  exceed the amount of  insurance
coverage.

     The NRC has broad authority under federal law to impose licensing and
safety-related requirements for the operation of nuclear generation facilities.
In the event of noncompliance, the NRC has the authority to impose fines or shut
down a unit, or both, depending upon its assessment of the severity of the
situation, until compliance is achieved. In addition, although we have no reason
to anticipate a serious nuclear incident at Palo Verde, if an incident did
occur, it could materially and adversely affect our results of operations or
financial condition. A major incident at a nuclear facility anywhere in the
world could cause the NRC to limit or prohibit the operation or licensing of any
domestic nuclear unit.

     The operation of Palo Verde requires licenses that need to be periodically
renewed and/or extended. We do not anticipate any problems renewing these
licenses. However, as a result of potential terrorist threats and increased
public scrutiny of utilities, the licensing process could result in increased
licensing or compliance costs that are difficult or impossible to predict.
                              ABOUT THIS PROSPECTUS

     This prospectus is part of a registration statement (No. 333- ) that we
filed with the SEC utilizing a "shelf" registration process. Under this shelf
process, we may offer up to $600,000,000 aggregate initial offering price of the
debt securities, preferred stock, common stock, purchase contracts and units
described in this prospectus in one or more offerings. In this prospectus we
will refer to the debt securities, preferred stock, common stock, share purchase
contracts and units collectively as the "securities." This prospectus provides
you with a general description of the securities we may offer. Each time we
offer securities, we will provide you with a prospectus supplement and, if
applicable, a pricing supplement. The prospectus supplement and any applicable
pricing supplement will describe the specific terms of the securities being
offered. The prospectus supplement and any applicable pricing supplement may
also add, update or change the information in this prospectus. In addition, the
registration statement filed with the SEC includes exhibits that provide more
details about the securities. Please carefully read this prospectus, the
applicable prospectus supplement and any applicable pricing supplement, together
with the information contained in the documents referred to under the heading
"Where You Can Find More Information."

                           FORWARD-LOOKING STATEMENTS

     This prospectus, any accompanying prospectus supplement, and the additional
information described under the heading "Where You Can Find More Information"
may contain forward-looking statements within the meaning of the safe harbor of
the Private Securities Litigation Reform Act of 1995. These statements are
subject to risks and uncertainties and are based on the beliefs and assumptions
of our management, based on information currently available to our management.
When we use words such as "believes," "expects," "anticipates," "intends,"
"plans," "estimates," "should," or similar expressions, we are making
forward-looking statements.

     Forward-looking statements are not guarantees of performance. They involve
risks, including those described under "Risk Factors" above, uncertainties, and
assumptions. Our future results may differ materially from those expressed in
these forward-looking statements. Many of the factors that will determine these
results are beyond our ability to control or predict. These factors include, but
are not limited to:

     *    the ongoing restructuring of the electric industry, including the
          introduction of retail electric competition in Arizona and decisions
          impacting wholesale competition;

     *    the outcome of regulatory and legislative proceedings relating to the
          restructuring;

                                       8

     *    state and federal regulatory and legislative decisions and actions,
          including price caps and other market constraints imposed by the FERC;

     *    regional economic and market conditions, including the California
          energy situation and completion of generation construction in the
          region, which could affect customer growth and the cost of power
          supplies;

     *    the cost of debt and equity capital and access to the capital markets;

     *    weather variations affecting local and regional customer energy usage;

     *    conservation programs;

     *    power plant performance;

     *    the successful completion of our generation expansion program;
     *    regulatory issues associated with generation expansion, such as
          permitting and licensing;

     *    our ability to compete successfully outside traditional regulated
          markets (including the wholesale market);

     *    technological developments in the electric industry;

     *    the performance of the stock market, which affects the amount of our
          required contributions to our pension plan and decommissioning trust
          funds;

     *    the strength of the real estate market in the market areas of SunCor,
          our real estate subsidiary, which include Arizona, New Mexico and
          Utah; and

     *    other uncertainties, all of which are difficult to predict and many of
          which are beyond our control.

     You are cautioned not to put undue reliance on any forward-looking
statements. We claim the protection of the safe harbor for forward-looking
statements contained in the Private Securities Litigation Reform Act of 1995 for
any forward-looking statements contained in this prospectus, including in the
information incorporated by reference in this prospectus, and any prospectus
supplement.

                                       9

                       WHERE YOU CAN FIND MORE INFORMATION

AVAILABLE INFORMATION

     We file annual, quarterly, and current reports, and other information with
the SEC. Our SEC filings are available to the public over the Internet at the
SEC's web site: http://www.sec.gov. You may also read and copy any document we
file at the SEC's public reference room, which is located at 450 Fifth Street
NW, in Washington, D.C. 20549. You may call the SEC at 1-800-SEC-0330 for
further information on the public reference room. Reports and other information
concerning us can also be inspected and copied at the offices of the New York
Stock Exchange at 20 Broad Street, New York, New York 10005, and the Pacific
Stock Exchange at 301 Pine Street, San Francisco, California 94104. Our filings
with the SEC are also available on our own web site at
http://www.pinnaclewest.com. The information on our web site is not part of this
registration statement.

INCORPORATION BY REFERENCE

     The SEC allows us to incorporate by reference the information we file with
them, which means that we can disclose important information to you by referring
you to those documents. The information incorporated by reference is considered
to be part of this prospectus, and later information that we file with the SEC
will automatically update and supersede this information. We incorporate by
reference the documents listed below and any future filings we make with the SEC
under Sections 13(a), 13(c), 14, or 15(d) of the Securities Exchange Act of 1934
until all securities are sold under this prospectus.

     *    Annual Report on Form 10-K for the fiscal year ended December 31, 2001
          (except for Items 6, 7 and 8, which have been revised in the Current
          Report on Form 8-K dated November 21, 2002);

     *    Quarterly Reports on Form 10-Q for the fiscal quarters ended March 31,
          June 30, and September 30, 2002;

     *    Current Reports on Form 8-K dated December 14, 2001 and February 8,
          March 31, April 26, May 22, June 5, June 11, June 30, July 11, July
          23, August 13, August 27, September 10, September 30, October 17,
          November 14, and November 21, 2002;

     *    The description of the Company's common stock contained in the
          registration statement on Form 8-B filed with the SEC on July 25,
          1985, and any amendment or report which we have filed (or will file
          after the date of this prospectus and prior to the termination of this
          offering) for the purpose of updating such description, including the
          Company's Current Report on Form 8-K dated March 22, 1999 and Exhibit
          4.1 to the Company's Quarterly Report on Form 10-Q for the fiscal
          quarter ended March 31, 2002.

     You may request a copy of these filings and will receive a copy of these
filings, at no cost, by writing or telephoning us at the following address:

          Pinnacle West Capital Corporation
          Office of the Secretary
          Station 9068
          P.O. Box 53999
          Phoenix, Arizona 85072-3999
          (602) 250-3252

                                       10

                                   THE COMPANY

     We own all of the outstanding common stock of Arizona Public Service
Company ("APS"). APS is an electric utility that provides either retail or
wholesale electric service to substantially all of the state of Arizona, with
the major exceptions of the Tucson metropolitan area and about one-half of the
Phoenix metropolitan area. Electricity is provided through a distribution system
owned by APS. APS also generates and, through our marketing and trading
division, sells and delivers electricity to wholesale customers in the western
United States.

     Our marketing and trading division currently sells into the wholesale
market, the APS and Pinnacle West Energy generation output that is not needed
for APS' native load, which includes loads for retail customers and traditional
cost-of-service wholesale customers. Subject to specified risk parameters
established by our Board of Directors and its energy risk management committee,
the marketing and trading division also has engaged in activities to hedge
purchases and sales of electricity, fuels, and emissions allowances and credits
and to profit from market price movements. However, the ACC has ordered the ACC
staff and interested parties to develop a competitive procurement process by
March 1, 2003 by which APS will competitively procure, at a minimum, any power
needed for its retail customers that it cannot produce from its existing
generation assets. For purposes of this competitive procurement process,
Pinnacle West Energy generation assets are not counted as APS generation assets.
The draft ACC Staff report proposing a competitive procurement process provides
that Pinnacle West Energy would be able to bid in connection with such
competitive procurement by APS.

     Our other major subsidiaries are:

     *    Pinnacle West Energy Corporation, through which we conduct our
          unregulated electricity generation operations;

     *    APS Energy Services Company, Inc., which provides commodity-related
          energy services (such as direct access commodity contracts, energy
          procurement, and energy supply consultation) and energy-related
          products and services (such as energy master planning, energy use
          consultation and facility audits, cogeneration analysis and
          installation, and project management) to commercial, industrial and
          institutional retail customers in the western United States;

     *    SunCor Development Company, a developer of residential, commercial,
          and industrial real estate projects in Arizona, New Mexico, and Utah;
          and

     *    El Dorado Investment Company, an investment firm.

                                       11

                     RATIO OF EARNINGS TO FIXED CHARGES (A)

     The following table shows our consolidated ratio of earnings to fixed
charges and our consolidated ratio of earnings to combined fixed charges and
preferred dividends:



                                                    Nine Months Ended          Twelve Months Ended
                                                      September 30                 December 31,
                                                      ------------      --------------------------------
                                                          2002          2001   2000   1999   1998   1997
                                                          ----          ----   ----   ----   ----   ----
                                                                                  
Consolidated ratio of earnings to fixed charges ....      3.30          3.55   3.44   3.11   2.89   2.68
Consolidated ratio of earnings to combined
  fixed charges and preferred dividends ............      3.30          3.55   3.44   3.10   2.76   2.54


     The ratio of earnings to fixed charges was computed by dividing earnings by
fixed charges. For this purpose, earnings consist of pre-tax income from
continuing operations excluding extraordinary items and cumulative effect of
change in accounting for derivatives, plus the amount of fixed charges as
defined below. Fixed charges consist of: expensed interest; amortization of debt
discount, premium and expense; and an estimate of interest implicit in rentals.

     The ratio of earnings to combined fixed charges and preferred dividends was
computed by dividing earnings by the sum of fixed charges and preferred
dividends. For this purpose, earnings consist of pre-tax income from continuing
operations excluding extraordinary items and cumulative effect of change in
accounting for derivatives, plus the amount of combined fixed charges and
preferred dividends as defined below. Combined fixed charges and preferred
dividends consist of: expensed interest; amortization of debt discount, premium
and expense; an estimate of interest implicit in rentals; and preferred stock
dividend requirements of majority-owned subsidiaries increased to reflect our
pre-tax earnings requirement.

----------
(a)  We have reclassified certain prior year amounts to conform to the current
     year presentation.

                                 USE OF PROCEEDS

     We intend to use the proceeds from the sale of these securities for general
corporate purposes, which may include the repayment of indebtedness, capital
expenditures, the funding of working capital, acquisitions and stock repurchases
and/or capital infusions into one or more of our subsidiaries for any of those
purposes. The specific use of proceeds from the sale of these securities will be
set forth in each prospectus supplement relating to each offering of these
securities.

                      GENERAL DESCRIPTION OF THE SECURITIES

     We, directly or through agents, dealers or underwriters that we designate,
may offer and sell, from time to time, up to $600,000,000 (or the equivalent in
one or more foreign currencies or currency units) aggregate initial offering
price of:

     *    our debt securities, in one or more series, which may be senior debt
          securities or subordinated debt securities, in each case consisting of
          notes or other unsecured evidences of indebtedness;

     *    shares of our preferred stock;

     *    shares of our common stock;

     *    purchase contracts to acquire any of the other securities that may be
          sold under this prospectus; or

     *    any combination of these securities, individually or as units.

                                       12

     We may offer and sell these securities either individually or as units
consisting of one or more of these securities, each on terms to be determined at
the time of sale. We may issue debt securities and/or shares of preferred stock
that are exchangeable for and/or convertible into common stock or any of the
other securities that may be sold under this prospectus. When particular
securities are offered, a supplement to this prospectus will be delivered with
this prospectus, which will describe the terms of the offering and sale of the
offered securities.

                         DESCRIPTION OF DEBT SECURITIES

GENERAL

     The following description highlights the general terms of the debt
securities. When we offer debt securities in the future, the prospectus
supplement will explain the particular terms of those securities and the extent
to which any of these general provisions will not apply.

     We can issue an unlimited amount of debt securities under the indentures
listed below. We can issue debt securities from time to time and in one or more
series as determined by us. In addition, we can issue debt securities of any
series with terms different from the terms of debt securities of any other
series and the terms of particular debt securities within any series may differ
from each other, all without the consent of the holders of previously issued
series of debt securities. The debt securities of each series will be our
direct, unsecured obligations. The debt securities may be issued in one or more
new series under:

     *    an Indenture, dated as of December 1, 2000, between The Bank of New
          York and us, in the case of subordinated debt securities;

     *    an Indenture, dated as of December 1, 2000, between The Bank of New
          York and us, as amended by the First Supplemental Indenture thereto
          dated as of March 15, 2001, in the case of senior debt securities; or

     *    in the case of convertible debt securities, one of two new indentures
          between us and The Bank of New York, as trustee, for convertible
          senior debt securities or convertible subordinated debt securities.

     We have issued and there are outstanding $300 million of our 6.40% Notes
due 2006 under the senior debt securities indenture described above.

     Because we are structured as a holding company, all existing and future
indebtedness and other liabilities of our subsidiaries will be effectively
senior in right of payment to our debt securities, whether senior debt
securities or subordinated debt securities. None of the above Indentures limits
our ability or the ability of our subsidiaries to incur additional indebtedness
in the future. The assets and cash flows of our subsidiaries will be available,
in the first instance, to service their own debt and other obligations and our
ability to have the benefit of their assets and cash flows, particularly in the
case of any insolvency or financial distress affecting our subsidiaries, would
arise only through our equity ownership interests in our subsidiaries and only
after their creditors had been satisfied. Additional information is provided
below under "Subordination" as to the allocation of outstanding indebtedness on
our part and on the part of our subsidiaries.

     We have summarized selected provisions of the Indentures below. The summary
is not complete. We have filed the forms of the Indentures as exhibits to the
registration statement. You should read the Indentures in their entirety,
including the definitions of certain terms, together with this prospectus and
the prospectus supplement before you make any investment decision. Although
separate Indentures are used for subordinated debt securities, senior debt
securities, convertible subordinated debt securities and convertible senior debt
securities, the description of the Indenture in this section applies to all
Indentures, unless otherwise noted.

                                       13

     You should refer to the prospectus supplement attached to this prospectus
for the following information about a new series of debt securities:

     *    title of the debt securities;

     *    the aggregate principal amount of the debt securities or the series of
          which they are a part;

     *    the date on which the debt securities mature;

     *    the interest rate;

     *    when the interest on the debt securities accrues and is payable;

     *    the record dates;

     *    places where principal, premium, or interest will be payable;

     *    periods within which, and prices at which we can redeem debt
          securities at our option;

     *    any obligation on our part to redeem or purchase debt securities
          pursuant to a sinking fund or at the option of the holder;

     *    denominations and multiples at which debt securities will be issued if
          other than $1,000;

     *    any index or formula from which the amount of principal or any premium
          or interest may be determined;

     *    any allowance for alternative currencies and determination of value;

     *    whether the debt securities are convertible and the terms and
          conditions applicable to conversion, including the conversion price or
          rate, the conversion period, and other conversion terms and
          provisions;

     *    whether the debt securities are defeasible under the terms of the
          Indenture;

     *    whether we are issuing the debt securities as global securities;

     *    any additional or different events of default and any change in the
          right of the trustee or the holders to declare the principal amount
          due and payable if there is any default;

     *    any addition to or change in the covenants in the Indenture; and

     *    any other terms.

     We may sell the debt securities at a substantial discount below their
principal amount. The prospectus supplement may describe special federal income
tax considerations that apply to debt securities sold at an original issue
discount or to debt securities that are denominated in a currency other than
United States dollars.

     Unless the applicable prospectus supplement specifies otherwise, the debt
securities will not be listed on any securities exchange.

                                       14

     Other than the protections described in this prospectus and in the
prospectus supplement, holders of debt securities would not be protected by the
covenants in the Indenture from a highly-leveraged transaction.

SUBORDINATION

     Each Indenture relating to the subordinated debt securities states that,
unless otherwise provided in a supplemental indenture or a board resolution, the
debt securities will be subordinate to all senior debt. This is true whether the
senior debt is outstanding as of the date of the Indenture or is incurred
afterwards. The balance of the information under this heading assumes that a
supplemental indenture or a board resolution results in a series of debt
securities being subordinated obligations.

     The Indenture states that we cannot make payments of principal, premium, or
interest on the subordinated debt if:

     *    the principal, premium or interest on senior debt is not paid when due
          and the applicable grace period for the default has ended and the
          default has not been cured or waived; or

     *    the maturity of any senior debt has been accelerated because of a
          default.

     The Indenture provides that we must pay all senior debt in full before the
holders of the subordinated debt securities may receive or retain any payment if
our assets are distributed to our creditors upon any of the following:

     *    dissolution;

     *    winding-up;

     *    liquidation;

     *    reorganization, whether voluntary or involuntary;

     *    bankruptcy;

     *    insolvency;

     *    receivership; or

     *    any other proceedings.

     The Indenture provides that when all amounts owing on the senior debt are
paid in full, the holders of the subordinated debt securities will be subrogated
to the rights of the holders of senior debt to receive payments or distributions
applicable to senior debt.

     The Indenture defines senior debt as the principal, premium, interest and
any other payment due under any of the following, whether outstanding at the
date of the Indenture or thereafter incurred, created or assumed:

     *    all of our debt evidenced by notes, debentures, bonds, or other
          securities we sell for money;

     *    all debt of others of the kinds described in the preceding bullet
          point that we assume or guarantee in any manner; and

                                       15

     *    all renewals, extensions, or refundings of debt of the kinds described
          in either of the two preceding bullet points.

     However, the preceding will not be considered senior debt if the document
creating the debt or the assumption or guarantee of the debt states that it is
not superior to or that it is on equal footing with the subordinated debt
securities.

     The Indenture does not limit the aggregate amount of senior debt that we
may issue. As of September 30, 2002, our outstanding senior debt (excluding our
subsidiaries) was approximately $792 million. In addition, as of September 30,
2002, our subsidiaries, principally APS, had approximately $2.3 billion of debt
outstanding, of which $430 million represented APS first mortgage bonds or
senior notes, both of which are directly or indirectly secured by substantially
all of APS' assets. As discussed above under "General", our debt securities,
whether senior debt securities or subordinated securities, are structurally
subordinated to the debt securities and other obligations of our subsidiaries.

CONVERTIBILITY

     No series of debt securities, whether senior or subordinated, will be
convertible into, or exchangeable for, other securities or property except as
set forth in the applicable prospectus supplement. You should refer to the
prospectus supplement that accompanies this prospectus for a description of the
specific conversion provisions and terms of any series of convertible debt
securities that we may offer by that prospectus supplement. These terms and
provisions may include:

     *    the title and specific designation of the convertible debt securities,
          including whether they are convertible senior debt securities or
          convertible subordinated debt securities;

     *    the terms and conditions upon which conversion of the convertible debt
          securities may be effected, including the conversion price, the
          conversion period and other conversion provisions;

     *    the terms and conditions on which we may, or may be required to,
          redeem the convertible debt securities;

     *    the place or places where we must pay the convertible debt securities
          and where any convertible debt securities issued in registered form
          may be sent for transfer, conversion or exchange; and

     *    any other terms of the convertible debt securities and any other
          deletions from or modifications or additions to the indenture in
          respect of the convertible debt securities, including those relating
          to the subordination of any convertible debt securities or any
          addition to or changes in the events of default or covenants of any
          convertible debt securities.

FORM, EXCHANGE, AND TRANSFER

     Each series of debt securities will be issuable only in fully registered
form and without coupons. In addition, unless otherwise specified in a
prospectus supplement, the debt securities will be issued in denominations of
$1,000 and multiples of $1,000. We, the trustee, and any of our agents may treat
the registered holder of a debt security as the absolute owner for the purpose
of making payments, giving notices, and for all other purposes.

     The holders of debt securities may exchange them for any other debt
securities of the same series, in authorized denominations and equal principal
amount. However, this type of exchange will be subject to the terms of the
Indenture and any limitations that apply to global securities.

                                       16

     A holder may transfer debt securities by presenting the endorsed security
at the office of a security registrar or at the office of any transfer agent we
designate. The holder will not be charged for any exchange or registration of
transfer, but we may require payment to cover any tax or other governmental
charge in connection with the transaction. We have appointed the trustee under
each Indenture as security registrar. A prospectus supplement will name any
transfer agent we designate for any debt securities if different from the
security registrar. We may designate additional transfer agents or rescind the
designation of any transfer agent or approve a change in the office through
which any transfer agent acts at any time, except that we will maintain a
transfer agent in each place of payment for debt securities.

     If the debt securities of any series are to be redeemed in part, we will
not be required to do any of the following:

     *    issue, register the transfer of, or exchange any debt securities of
          that series and/or tenor beginning 15 days before the day of mailing
          of a notice of redemption of any debt security that may be selected
          for redemption and ending at the close of business on the day of the
          mailing; or

     *    register the transfer of or exchange any debt security selected for
          redemption, except for an unredeemed portion of a debt security that
          is being redeemed in part.

PAYMENT AND PAYING AGENTS

     Unless otherwise indicated in the applicable prospectus supplement, we will
pay interest on a debt security on any interest payment date to the person in
whose name the debt security is registered.

     Unless otherwise indicated in the applicable prospectus supplement, the
principal, premium, and interest on the debt securities of a particular series
will be payable at the office of the paying agents that we may designate.
However, we may pay any interest by check mailed to the address, as it appears
in the security register, of the person entitled to that interest. Also, unless
otherwise indicated in the applicable prospectus supplement, the corporate trust
office of the trustee in The City of New York will be our sole paying agent for
payments with respect to debt securities of each series. Any other paying agent
that we initially designate for the debt securities of a particular series will
be named in the applicable prospectus supplement. We may at any time designate
additional paying agents or rescind the designation of any paying agent or
approve a change in the office through which any paying agent acts, except that
we will maintain a paying agent in each place of payment for the debt securities
of a particular series.

     All money that we pay to a paying agent for the payment of the principal,
premium, or interest on any debt security that remains unclaimed at the end of
two years after the principal, premium, or interest has become due and payable
will be repaid to us, and the holder of the debt security may look only to us
for payment.

CONSOLIDATION, MERGER, AND SALE OF ASSETS

     Unless otherwise indicated in the applicable prospectus supplement, we may
not:

     *    consolidate with or merge into any other entity;

     *    convey, transfer, or lease our properties and assets substantially as
          an entirety to any entity; or

     *    permit any entity to consolidate with or merge into us or convey,
          transfer, or lease its properties and assets substantially as an
          entirety to us,

                                       17

unless the following conditions are met:

     *    the successor entity is a corporation, partnership, trust, or other
          entity organized and validly existing under the laws of any domestic
          jurisdiction and assumes our obligations on the debt securities and
          under the Indenture;

     *    immediately after giving effect to the transaction, no event of
          default, and no event which, after notice or lapse of time or both,
          would become an event of default, shall have occurred and be
          continuing; and

     *    other conditions are met.

     Upon any merger, consolidation, or transfer or lease of properties, the
successor person will be substituted for us under the Indenture, and,
thereafter, except in the case of a lease, we will be relieved of all
obligations and covenants under the Indenture and the debt securities.

EVENTS OF DEFAULT

     Each of the following will be an event of default under the Indenture with
respect to debt securities of any series:

     *    our failure to pay principal of or any premium on any debt security of
          that series when due;

     *    our failure to pay any interest on any debt securities of that series
          when due, and the continuance of that failure for 30 days;

     *    our failure to deposit any sinking fund payment, when due, in respect
          of any debt securities of that series;

     *    our failure to perform any of our other covenants in the Indenture
          relating to that series and the continuance of that failure for 90
          days after written notice has been given by the trustee or the holders
          of at least 25% in principal amount of the outstanding debt securities
          of that series;

     *    bankruptcy, insolvency, or reorganization events involving us; and

     *    any other event of default for that series described in the applicable
          prospectus supplement.

     If an event of default occurs and is continuing other than an event of
default relating to bankruptcy, insolvency, or reorganization, either the
trustee or the holders of at least 25% in aggregate principal amount of the
outstanding debt securities of the affected series may declare the principal
amount of the debt securities of that series to be due and payable immediately.
In the case of any debt security that is an original issue discount security or
the principal amount of which is not then determinable, the trustee or the
holders of at least 25% in aggregate principal amount of the outstanding debt
securities of that series may declare the portion of the principal amount of the
debt security specified in the terms of such debt security to be immediately due
and payable upon an event of default.

     If an event of default involving bankruptcy, insolvency, or reorganization
occurs, the principal amount of all the debt securities of the affected series
will automatically, and without any action by the trustee or any holder, become
immediately due and payable. After any acceleration, but before a judgment or
decree based on acceleration, the holders of a majority in aggregate principal
amount of the outstanding debt securities of that series may rescind and annul
the acceleration if all events of default,

                                       18

other than the non-payment of accelerated principal, have been cured or waived
as provided in the Indenture.

     The trustee will be under no obligation to exercise any of its rights or
powers under the Indenture at the request or direction of any of the holders,
unless the holders have offered the trustee indemnity satisfactory to it.
Subject to provisions for the indemnification of the trustee, the holders of a
majority in principal amount of the outstanding debt securities of any series
will have the right to direct the time, method, and place of conducting any
proceeding for any remedy available to the trustee, or exercising any trust or
power conferred on the trustee, with respect to the debt securities of that
series.

     No holder of a debt security of any series will have any right to institute
any proceeding under the Indenture, or for the appointment of a receiver or a
trustee, or for any other remedy under the Indenture, unless:

     *    the holder has previously given the trustee written notice of a
          continuing event of default with respect to the debt securities of
          that series;

     *    the holders of at least 25% in aggregate principal amount of the
          outstanding debt securities of that series have made written request,
          and the holder or holders have offered reasonable indemnity, to the
          trustee to institute the proceeding as trustee; and

     *    the trustee has failed to institute the proceeding, and has not
          received from the holders of a majority in aggregate principal amount
          of the outstanding debt securities of that series a direction
          inconsistent with the request within 60 days after the notice,
          request, and offer of indemnity.

     The limitations provided above do not apply to a suit instituted by a
holder of a debt security for the enforcement of payment of the principal,
premium, or interest on the debt security on or after the applicable due date.

     We are required to furnish to the trustee annually a certificate of various
officers stating whether or not we are in default in the performance or
observance of any of the terms, provisions, and conditions of the Indenture and,
if so, specifying all known defaults.

MODIFICATION AND WAIVER

     In limited cases the trustee, as well as us, may make modifications and
amendments to the Indenture without the consent of the holders of any series of
debt securities. The trustee may make modifications and amendments to the
Indenture with the consent of the holders of not less than 66 2/3% in aggregate
principal amount of the outstanding debt securities of each series affected by
the modification or amendment. However, without the consent of the holder of
each outstanding debt security affected, no modification or amendment may:

     *    reduce the principal amount of, or any premium or interest on, any
          debt security;

     *    reduce the amount of principal of an original issue discount security
          or any other debt security payable upon acceleration of the maturity
          of the security;

     *    change the stated maturity of the principal of, or any installment of
          principal of or interest on, any debt security;

     *    change the place or currency of payment of principal of, or any
          premium or interest on, any debt security;

                                       19

     *    make provisions with respect to conversion or exchange rights of
          holders of debt securities;

     *    impair the right to institute suit for the enforcement of any payment
          on or with respect to any debt security; or

     *    reduce the percentage in principal amount of outstanding debt
          securities of any series, the consent of whose holders is required for
          modification or amendment of the Indenture necessary for waiver of
          compliance with certain provisions of the Indenture or of certain
          defaults, or modify the provisions of the Indenture relating to
          modification and waiver.

     Compliance with certain restrictive provisions of the Indenture may be
waived by the holders of not less than 66 2/3% in aggregate principal amount of
the outstanding debt securities of any series. The holders of a majority in
principal amount of the outstanding debt securities of any series may waive any
past default under the Indenture, except:

     *    a default in the payment of principal, premium, or interest; and

     *    a default under covenants and provisions of the Indenture which cannot
          be amended without the consent of the holder of each outstanding debt
          security of the affected series.

     In determining whether the holders of the requisite principal amount of the
outstanding debt securities have given or taken any direction, notice, consent,
waiver, or other action under the Indenture as of any date:

     *    the principal amount of an outstanding original issue discount
          security will be the amount of the principal that would be due and
          payable upon acceleration of the maturity on that date,

     *    if the principal amount payable at the stated maturity of a debt
          security is not determinable, the principal amount of the outstanding
          debt security will be an amount determined in the manner prescribed
          for the debt security; and

     *    the principal amount of an outstanding debt security denominated in
          one or more foreign currencies will be the U.S. dollar equivalent of
          the principal amount of the debt security or, in the case of a debt
          security described in the previous clause above, the amount described
          in that clause.

     If debt securities have been fully defeased or if we have deposited money
with the trustee to redeem debt securities, they will not be considered
outstanding.

     Except in limited circumstances, we will be entitled to set any day as a
record date for the purpose of determining the holders of outstanding debt
securities of any series entitled to give or take any direction, notice,
consent, waiver, or other action under the Indenture. In limited circumstances,
the trustee will be entitled to set a record date for action by holders. If a
record date is set for any action to be taken by holders of a particular series,
the action may be taken only by persons who are holders of outstanding debt
securities of that series on the record date. To be effective, the action must
be taken by holders of the requisite principal amount of the debt securities
within a specified period following the record date. For any particular record
date, this period will be 180 days or any other shorter period as we may
specify. The period may be shortened or lengthened, but not beyond 180 days.

DEFEASANCE AND COVENANT DEFEASANCE

     We may elect to have the provisions of the Indenture relating to defeasance
and discharge of indebtedness, or defeasance of restrictive covenants in the
Indenture, applied to the debt securities of

                                       20

any series, or to any specified part of a series. The prospectus supplement
describing a series of debt securities will state whether we can make these
elections for that series.

     DEFEASANCE AND DISCHARGE

     We will be discharged from all of our obligations with respect to the debt
securities of a series if we deposit with the trustee money in an amount
sufficient to pay the principal, premium, and interest on the debt securities of
that series when due in accordance with the terms of the Indenture and the debt
securities. We can also deposit securities that will provide the necessary
monies. However, we will not be discharged from the obligations to exchange or
register the transfer of debt securities, to replace stolen, lost, or mutilated
debt securities, to maintain paying agencies, and to hold moneys for payment in
trust. The defeasance or discharge may occur only if we deliver to the trustee
an opinion of counsel stating that we have received from, or there has been
published by, the United States Internal Revenue Service a ruling, or there has
been a change in tax law, in either case to the effect that holders of such debt
securities:

     *    will not recognize gain or loss for federal income tax purposes as a
          result of the deposit, defeasance, and discharge; and

     *    will be subject to federal income tax on the same amount, in the same
          manner, and at the same times as would have been the case if the
          deposit, defeasance, and discharge were not to occur.

     DEFEASANCE OF COVENANTS

     We may elect to omit compliance with restrictive covenants in the Indenture
and any additional covenants that may be described in the applicable prospectus
supplement for a series of debt securities. This election will preclude some
actions from being considered defaults under the Indenture for the applicable
series. In order to exercise this option, we will be required to deposit, in
trust for the benefit of the holders of debt securities, funds in an amount
sufficient to pay the principal, premium and interest on the debt securities of
the applicable series. We may also deposit securities that will provide the
necessary monies. We will also be required to deliver to the trustee an opinion
of counsel to the effect that holders of the debt securities will not recognize
gain or loss for federal income tax purposes as a result of such deposit and
defeasance of certain obligations and will be subject to federal income tax on
the same amount, in the same manner and at the same times as would have been the
case if the deposit and defeasance were not to occur. If we exercise this option
with respect to any debt securities and the debt securities are declared due and
payable because of the occurrence of any event of default, the amount of funds
deposited in trust would be sufficient to pay amounts due on the debt securities
at the time of their respective stated maturities but may not be sufficient to
pay amounts due on the debt securities on any acceleration resulting from an
event of default. In that case, we would remain liable for the additional
payments.

GOVERNING LAW

     The law of the State of New York will govern the Indenture and the debt
securities.

GLOBAL SECURITIES

     Some or all of the debt securities of any series may be represented, in
whole or in part, by one or more global securities, which will have an aggregate
principal amount equal to that of the debt securities they represent. We will
register each global security in the name of a depositary or nominee identified
in a prospectus supplement and deposit the global security with the depositary
or nominee. Each global security will bear a legend regarding the restrictions
on exchanges and registration of transfer referred to below and other matters
specified in a supplemental indenture to the Indenture.

                                       21

     No global security may be exchanged for debt securities registered, and no
transfer of a global security may be registered, in the name of any person other
than the depositary for the global security or any nominee of the depositary,
unless:

     *    the depositary has notified us that it is unwilling or unable to
          continue as depositary for the global security or has ceased to be
          qualified to act as depositary;

     *    a default has occurred and is continuing with respect to the debt
          securities represented by the global security; or

     *    any other circumstances exist that may be described in the applicable
          supplemental indenture and prospectus supplement.

     We will register all securities issued in exchange for a global security or
any portion of a global security in the names specified by the depositary.

     As long as the depositary or its nominee is the registered holder of a
global security, the depositary or nominee will be considered the sole owner and
holder of the global security and the debt securities that it represents. Except
in the limited circumstances referred to above, owners of beneficial interests
in a global security will not:

     *    be entitled to have the global security or debt securities registered
          in their names;

     *    receive or be entitled to receive physical delivery of certificated
          debt securities in exchange for a global security; and

     *    be considered to be the owners or holders of the global security or
          any debt securities for any purpose under the Indenture.

     We will make all payments of principal, premium, and interest on a global
security to the depositary or its nominee. The laws of some jurisdictions
require that purchasers of securities take physical delivery of securities in
definitive form. These laws make it difficult to transfer beneficial interests
in a global security.

     Ownership of beneficial interests in a global security will be limited to
institutions that have accounts with the depositary or its nominee, referred to
as Participants, and to persons that may hold beneficial interests through
Participants. In connection with the issuance of any global security, the
depositary will credit, on its book-entry registration and transfer system, the
respective principal amounts of debt securities represented by the global
security to the accounts of its Participants. Ownership of beneficial interests
in a global security will only be shown on records maintained by the depositary
or the Participant. Likewise, the transfer of ownership interests will be
effected only through the same records. Payments, transfers, exchanges, and
other matters relating to beneficial interests in a global security may be
subject to various policies and procedures adopted by the depositary from time
to time. Neither we, the trustee, nor any of our agents will have responsibility
or liability for any aspect of the depositary's or any Participant's records
relating to, or for payments made on account of, beneficial interests in a
global security, or for maintaining, supervising, or reviewing any records
relating to the beneficial interests.

REGARDING THE TRUSTEE

     The Bank of New York is the trustee under our Indentures relating to the
subordinated debt securities and convertible subordinated debt securities and
our Indentures relating to the senior debt securities and the convertible senior
debt securities. We maintain normal banking arrangements with The Bank of New
York, which include a $40 million commitment pursuant to a revolving credit
agreement, none of which was outstanding at September 30, 2002.

                                       22

     The Bank of New York also serves as:

     *    master trustee/custodian of our pension plan;

     *    investment manager for our nonunion post-retirement medical fund; and

     *    custodian of international fixed-income assets for our pension plan.

     An affiliate of The Bank of New York also serves as an underwriter on
certain of our debt issuances from time to time.

         The Bank of New York is the  trustee  under  APS' first  mortgage  bond
indenture,  senior note indenture,  and subordinated debt securities  indenture.
The Bank of New York is also the trustee  for the  holders of several  issues of
pollution  control bonds issued on APS' behalf,  and an affiliate of The Bank of
New York is the remarketing  agent for a series of APS' pollution control bonds.
APS  maintains  normal  banking  arrangements  with The Bank of New York,  which
include a $15.6  million  commitment  by The Bank of New York pursuant to an APS
revolving credit agreement, none of which was outstanding at September 30, 2002.

                         DESCRIPTION OF PREFERRED STOCK

     We may issue, from time to time, shares of one or more series or classes of
our preferred stock. The following description sets forth certain general terms
and provisions of the preferred stock to which any prospectus supplement may
relate. The particular terms of any series of preferred stock and the extent, if
any, to which these general provisions may apply to the series of preferred
stock offered will be described in the prospectus supplement relating to that
preferred stock.

     The following summary of provisions of the preferred stock does not purport
to be complete and is subject to, and is qualified in its entirety by reference
to, the provisions of our articles of incorporation, bylaws and the amendment to
our articles relating to a specific series of the preferred stock (the
"statement of preferred stock designations"), which will be in the form filed as
an exhibit to, or incorporated by reference in, the registration statement of
which this prospectus is a part. Before investing in any series of our preferred
stock, you should read our articles, bylaws and the relevant statement of
preferred stock designations.

GENERAL

     Under our articles of incorporation, we have the authority to issue up to
10,000,000 shares of preferred stock. No shares of preferred stock are currently
outstanding. 4,400,000 shares of preferred stock are reserved for issuance under
our shareholders rights plan. See "Description of Common Stock--Certain
Anti-takeover Effects--Shareholder Rights Plan." Our Board of Directors is
authorized to issue shares of preferred stock, in one or more series, and to fix
for each series voting powers and those preferences and relative, participating,
optional or other special rights and those qualifications, limitations or
restrictions as are permitted by the Arizona Business Corporation Act (the
"ABCA").

     Our Board of Directors is authorized to determine the terms for each series
of preferred stock, and the prospectus supplement will describe the terms of any
series of preferred stock being offered, including:

     *    the designation of the shares and the number of shares that constitute
          the series;

     *    the dividend rate (or the method of calculation thereof), if any, on
          the shares of the series and the priority as to payment of dividends
          with respect to other classes or series of our capital stock;

                                       23

     *    the dividend periods (or the method of calculation thereof);

     *    the voting rights of the shares;

     *    the liquidation preference and the priority as to payment of the
          liquidation preference with respect to other classes or series of our
          capital stock and any other rights of the shares of the series upon
          our liquidation or winding-up;

     *    whether or not and on what terms the shares of the series will be
          subject to redemption or repurchase at our option or at the option of
          the holders thereof;

     *    whether and on what terms the shares of the series will be convertible
          into or exchangeable for other securities;

     *    whether the shares of the series of preferred stock will be listed on
          a securities exchange;

     *    any special United States federal income tax considerations applicable
          to the series; and

     *    the other rights and privileges and any qualifications, limitations or
          restrictions of the rights or privileges of the series.

DIVIDENDS

     Holders of shares of preferred stock shall be entitled to receive, when and
as declared by our Board of Directors out of our funds legally available
therefor, a cash dividend payable at the dates and at the rates, if any, per
share as set forth in the applicable prospectus supplement.

CONVERTIBILITY

     No series of preferred stock will be convertible into, or exchangeable for,
other securities or property except as set forth in the applicable prospectus
supplement.

REDEMPTION AND SINKING FUND

     No series of preferred stock will be redeemable or receive the benefit of a
sinking fund except as set forth in the applicable prospectus supplement.

LIQUIDATION RIGHTS

     Unless otherwise set forth in the applicable prospectus supplement, in the
event of our liquidation, dissolution or winding up, the holders of shares of
each series of preferred stock are entitled to receive distributions out of our
assets available for distribution to stockholders, before any distribution of
assets is made to holders of (i) any other shares of preferred stock ranking
junior to that series of preferred stock as to rights upon liquidation and (ii)
shares of common stock. The amount of liquidating distributions received by
holders of preferred stock will generally equal the liquidation preference
specified in the applicable prospectus supplement for that series of preferred
stock, plus any dividends accrued and accumulated but unpaid to the date of
final distribution. The holders of each series of preferred stock will not be
entitled to receive the liquidating distribution of, plus such dividends on,
those shares until the liquidation preference of any shares of our capital stock
ranking senior to that series of the preferred stock as to the rights upon
liquidation shall have been paid or set aside for payment in full.

     If upon our liquidation, dissolution or winding up, the amounts payable
with respect to the preferred stock, and any other preferred stock ranking as to
any distribution on a parity with the preferred stock are not paid in full, then
the holders of the preferred stock and the other parity preferred stock will
share ratably in any distribution of assets in proportion to the full respective
preferential amount to which

                                       24

they are entitled. Unless otherwise specified in a prospectus supplement for a
series of preferred stock, after payment of the full amount of the liquidating
distribution to which they are entitled, the holders of shares of preferred
stock will not be entitled to any further participation in any distribution of
our assets. Neither a consolidation or merger of us with another corporation nor
a sale of securities shall be considered a liquidation, dissolution or winding
up of us.

VOTING RIGHTS

     The holders of each series of preferred stock we may issue will have no
voting rights, except as required by law and as described below or in the
applicable prospectus supplement. Our Board of Directors may, upon issuance of a
series of preferred stock, grant voting rights to the holders of that series,
including rights to elect additional board members if we fail to pay dividends
in a timely fashion.

     Arizona law provides for certain voting rights for holders of a class of
stock, even if the stock does not have other voting rights. Thus, the holders of
all shares of a class, would be entitled to vote on any amendment to our
articles of incorporation that would:

     *    increase or decrease the aggregate number of authorized shares of the
          class;

     *    effect an exchange or reclassification of all or part of the shares of
          the class into shares of another class;

     *    effect an exchange or reclassification, or create the right of
          exchange of all or part of the shares of another class into shares of
          the class;

     *    change the designations, rights, obligations, preferences, or
          limitations of all or part of the shares of the class;

     *    change the shares of all or part of the class into a different number
          of shares of the same class;

     *    create a new class of shares having rights or preferences with respect
          to distributions or to dissolution that are prior , superior or
          substantially equal to the shares of the class;

     *    increase rights, preferences or number of authorized shares of any
          class that, after giving effect to the amendment, have rights or
          preferences with respect to distributions or to dissolution that are
          prior, superior or substantially equal to the shares of the class;

     *    limit or deny an existing preemptive right of all or part of the
          class; and

     *    cancel or otherwise affect rights to distributions or dividends that
          have accumulated but have not yet been declared on all or part of the
          shares of the class.

     If the proposed amendment would affect a series of the class, but not the
entire class, in one or more of the ways described in the bullets above, then
the shares of the affected series will have the right to vote on the amendment
as a separate voting group. However, if a proposed amendment that would entitle
two or more series of the class to vote as separate voting groups would affect
those series in the same or a substantially similar way, the shares of all the
series so affected must vote together as a single voting group on the proposed
amendment.

     Unless the articles of incorporation, Arizona law or the Board of Directors
would require a greater vote or a different quorum, if an amendment to the
articles would allow the preferred stock or one or more series of the preferred
stock to vote as voting groups, the vote required by each voting group would be:

                                       25

     *    a majority of the votes entitled to be cast by the voting group, if
          the amendment would create dissenters rights; and

     *    in any other case, if a quorum is present in person or by proxy
          consisting of a majority of the votes entitled to be cast on the
          matter by the voting group, the votes cast by the voting group in
          favor of the amendment must exceed the votes cast against the
          amendment by the voting group.

     Arizona law may also require that the preferred stock be entitled to vote
on certain other extraordinary transactions.

MISCELLANEOUS

     The holders of our preferred stock will have no preemptive rights. All
shares of preferred stock being offered by the applicable prospectus supplement
will be fully paid and not liable to further calls or assessment by us. If we
should redeem or otherwise reacquire shares of our preferred stock, then these
shares will resume the status of authorized and unissued shares of preferred
stock undesignated as to series, and will be available for subsequent issuance.
There are no restrictions on repurchase or redemption of the preferred stock
while there is any arrearage on sinking fund installments except as may be set
forth in an applicable prospectus supplement. Payment of dividends on any series
of preferred stock may be restricted by loan agreements, indentures and other
transactions entered into by us. Any material contractual restrictions on
dividend payments will be described or incorporated by reference in the
applicable prospectus supplement.

     When we offer to sell a series of preferred stock, we will describe the
specific terms of the series in the applicable prospectus supplement. If any
particular terms of a series of preferred stock described in a prospectus
supplement differ from any of the terms described in this prospectus, then the
terms described in the applicable prospectus supplement will be deemed to
supersede the terms described in this prospectus.

NO OTHER RIGHTS

     The shares of a series of preferred stock will not have any preferences,
voting powers or relative, participating, optional or other special rights
except as set forth above or in the applicable prospectus supplement, our
articles of incorporation or the applicable statement of preferred stock
designations or as otherwise required by law.

TRANSFER AGENT AND REGISTRAR

     The transfer agent and registrar for each series of preferred stock will be
designated in the applicable prospectus supplement.

                           DESCRIPTION OF COMMON STOCK

     We may issue, from time to time, shares of our common stock, the general
terms and provisions of which are summarized below. This summary does not
purport to be complete and is subject to, and is qualified in its entirety by
express reference to, the provisions of our articles of incorporation, bylaws
and the applicable prospectus supplement.

AUTHORIZED SHARES

     Under our articles of incorporation, we have the authority to issue
150,000,000 shares of common stock. We have issued and have outstanding
approximately 84,755,377 shares of our common stock (as of November 12, 2002)
and we have reserved for issuance

                                       26

approximately 16,962,874 shares of our common stock (as of November 19, 2002),
excluding any shares of common stock that could be issued under the shareholders
rights plan.

DIVIDENDS

     Subject to any preferential rights of any series of preferred stock,
holders of shares of common stock will be entitled to receive dividends on the
stock out of assets legally available for distribution when, as and if
authorized and declared by our Board of Directors. The payment of dividends on
the common stock will be a business decision to be made by our Board of
Directors from time to time based upon results of our operations and our
financial condition and any other factors as our Board of Directors considers
relevant. Payment of dividends on the common stock may be restricted by loan
agreements, indentures and other transactions entered into by us from time to
time. Any material contractual restrictions on dividend payments will be
described in the applicable prospectus supplement.

VOTING RIGHTS

     Holders of common stock are entitled to one vote per share on all matters
voted on generally by the stockholders, including the election of directors,
and, except as otherwise required by law or except as provided with respect to
any series of preferred stock, the holders of the shares possess all voting
power. Arizona law provides for cumulative voting for the election of directors.
As a result, any shareholder may cumulate his or her votes by casting them all
for any one director nominee or by distributing them among two or more nominees.

STAGGERED TERMS OF DIRECTORS

     Our Board of Directors is elected in three classes with staggered
three-year terms. We currently have five directors in class I and four directors
each in classes II and III. One class of directors is elected each year for a
three-year term. Election of directors with staggered terms lessens the
effectiveness of cumulative voting rights by reducing the number of directors
who are elected in any given year.

LIQUIDATION RIGHTS

     Subject to any preferential rights of any series of preferred stock,
holders of shares of common stock are entitled to share ratably in our assets
legally available for distribution to our stockholders in the event of our
liquidation, dissolution or winding up.

ABSENCE OF OTHER RIGHTS

     Holders of common stock have no preferential, preemptive, conversion or
exchange rights.

MISCELLANEOUS

     All shares of common stock being offered by the applicable prospectus
supplement will be fully paid and not liable to further calls or assessment by
us.

TRANSFER AGENT AND REGISTRAR

     We are the principal transfer agent and registrar for the common stock.

PREFERRED STOCK

     Our Board of Directors has the authority, without any further action by our
stockholders, to issue from time to time shares of preferred stock, in one or
more series and to fix the designations, preferences, rights, qualifications,
limitations and restrictions thereof, including voting rights, dividend rights,
dividend rates, conversion rights, terms of redemption, redemption prices,
liquidation preferences and the number

                                       27

of shares constituting any series. The issuance of preferred stock with voting
rights could have an adverse effect on the voting power of holders of common
stock by increasing the number of outstanding shares having voting rights. In
addition, if our board of directors authorizes preferred stock with conversion
rights, the number of shares of common stock outstanding could potentially be
increased up to the authorized amount. The issuance of preferred stock could
decrease the amount of earnings and assets available for distribution to holders
of common stock. Any such issuance could also have the effect of delaying,
deterring or preventing a change in control of us and may adversely affect the
rights of holders of our common stock.

CERTAIN ANTI-TAKEOVER EFFECTS

     GENERAL. Certain provisions of our articles of incorporation, bylaws, and
the Arizona Revised Statutes ("ARS"), as well as our shareholder rights plan,
may have an anti-takeover effect and may delay or prevent a tender offer or
other acquisition transaction that a shareholder might consider to be in his or
her best interest, including a transaction that results in a premium over the
market price of the common stock. The summary of the provisions of our articles,
bylaws, shareholder rights plan, and the ARS set forth below does not purport to
be complete and is qualified in its entirety by reference to our articles,
bylaws, shareholder rights plan, and the ARS.

     BUSINESS COMBINATIONS. ARS ss. 10-2741 through 2743 and Article XII of our
bylaws restrict a wide range of transactions (collectively, "business
combinations") between us or, in certain cases, one of our subsidiaries, and an
interested shareholder (or any affiliate or associate of the interested
shareholder). An "interested shareholder" is, generally, any person who
beneficially owns, directly or indirectly, 10% or more of our outstanding voting
power or any of our affiliates or associates. The statute broadly defines
"business combinations" to include, among other things and with certain
exceptions:

     *    mergers and consolidations with an interested shareholder or an
          affiliate or associate of the interested shareholder;

     *    share exchanges with an interested shareholder or an affiliate or
          associate of the interested shareholder;

     *    sales, leases or other dispositions of assets to an interested
          shareholder or an affiliate or associate of the interested
          shareholder, representing 10% or more of (i) the aggregate market
          value of all of our consolidated assets as of the end of the most
          recent fiscal quarter, (ii) the aggregate market value of all our
          outstanding shares, or (iii) our consolidated revenues or net income
          for the four most recent fiscal quarters;

     *    the issuance or transfer of shares of stock having an aggregate market
          value of 5% or more of the aggregate market value of all of our
          outstanding shares to an interested shareholder or an affiliate or
          associate of the interested shareholder;

     *    the adoption of a plan or proposal for our liquidation or dissolution
          or reincorporation in another state or jurisdiction pursuant to an
          agreement or arrangement with an interested shareholder or an
          affiliate or associate of the interested shareholder.

     *    corporate actions, such as stock splits and stock dividends, and other
          transactions resulting in an increase in the proportionate share of
          the outstanding shares of any series or class of stock of us or any of
          our subsidiaries owned by an interested shareholder or an affiliate or
          associate of the interested shareholder; and

     *    the receipt by an interested shareholder or an affiliate or associate
          of the interested shareholder of the benefit (other than
          proportionately as a shareholder) of any loans, advances, guarantees,
          pledges or other financial assistance or any tax credits or other tax
          advantages provided by or through us or any of our subsidiaries.

                                       28

     The ARS and our bylaws provide that, subject to certain exceptions, we may
not engage in a business combination with an interested shareholder (or any
affiliate or associate of the interested shareholder) or authorize one of our
subsidiaries to do so, for a period of three years after the date on which the
interested shareholder first acquired the shares that qualify such person as an
interested shareholder (the "share acquisition date"), unless either the
business combination or the interested shareholder's acquisition of shares on
the share acquisition date is approved by a committee of our Board of Directors
(comprised solely of disinterested directors or other disinterested persons)
prior to the interested shareholder's share acquisition date.

     In addition, after such three-year period, the ARS and our bylaws prohibit
us from engaging in any business combination with an interested shareholder (or
any affiliate or associate of the interested shareholder), subject to certain
exceptions, unless:

     *    the business combination or acquisition of shares by the interested
          shareholder on the share acquisition date was approved by our Board of
          Directors prior to the share acquisition date;

     *    the business combination is approved by holders of a majority of our
          outstanding shares (excluding shares beneficially owned by the
          interested shareholder or any affiliate or associate of the interested
          shareholder) at a meeting called after such three-year period; or

     *    the business combination satisfies specified price and other
          requirements.

     ANTI-GREENMAIL PROVISIONS. ARS ss. 10-2704 and Article XIII of our bylaws
prohibit us from purchasing any shares of our voting stock from any beneficial
owner (or group of beneficial owners acting together to acquire, own or vote our
shares) of more than 5% of the voting power of our outstanding shares at a price
per share in excess of the average closing sale price during the 30 trading days
preceding the purchase or if the person or persons have commenced a tender offer
or announced an intention to seek control of us, during the 30 trading days
prior to the commencement of the tender offer or the making of the announcement,
unless

     *    the 5% beneficial owner has beneficially owned the shares to be
          purchased for a period of at least three years;

     *    holders of a majority of our voting power (excluding shares held by
          the 5% beneficial owner or its affiliates or associates or by any of
          our officers and directors) approve the purchase; or

     *    we make the repurchase offer available to all holders of the class or
          series of securities to be purchased and to all holders of other
          securities convertible into that class or series.

     CONTROL SHARE ACQUISITION STATUTE. Through a provision in our bylaws, we
have opted out of ARS ss. 10-2721 through 2727, the Arizona statutory provisions
regulating control share acquisitions. As a result, potential acquirors are not
subject to the limitations imposed by that statute.

     SHAREHOLDER RIGHTS PLAN. We have adopted a shareholder rights plan under
which one preferred share purchase right is attached to each outstanding share
of our common stock. The rights become exercisable and will be separated from
the common stock on the Distribution Date, as such term is defined in the plan.
Generally, subject to specified exceptions, the Distribution Date will occur on
the earlier of:

     *    10 days following a public announcement that a person or group of
          affiliated or associated persons (an "acquiring person") has acquired
          beneficial ownership of 15% or more of our outstanding common stock,
          or

                                       29

     *    10 business days following the commencement of, or announcement of an
          intention to make a tender offer or exchange offer that would result
          in the beneficial ownership by a person or group of 15% or more of our
          outstanding common stock.

     Each right entitles the registered holder to purchase from us one
one-hundredth of a share of Series A Participating Preferred Stock at any
exercise price of $130, subject to adjustment under specified circumstances.
However, after any person has become an acquiring person (a "Flip-In Event"),
upon exercise of the right, the holder will be entitled to receive common stock
valued at twice the exercise price of the right. In other words, a rights holder
may purchase common stock at a 50% discount. In some circumstances, the holder
will receive cash, property or other securities instead of common stock. Upon
the occurrence of a Flip-In Event, any rights owned by an acquiring person, its
affiliates and associates and certain of its transferees will become null and
void.

     In the event that a person becomes an acquiring person, we are then merged,
and the common stock is exchanged or converted in the merger, then each right
(other than those formerly held by the acquiring person, which became void)
would "flip-over" and be exercisable for a number of shares of common stock of
the acquiring company having a market value of two times the exercise price of
the right. In other words, a rights holder may purchase the acquiring company's
common stock at a 50% discount.

     After a Flip-In Event but before a "flip-over" event (as described above)
occurs and before an acquiring person becomes the owner of 50% or more of the
common stock, the Board may cause the rights (either in whole or in part) to be
exchanged for shares of common stock (or fractional interests in Series A
Preferred Stock, or equivalent securities, of equal value) at a one-to-one
exchange ratio. Rights held by the acquiring person, however, which became void
upon the Flip-In Event, would not be entitled to participate in such exchange.

     We may redeem the rights for $0.01 per right at any time prior to the date
on which a person becomes an acquiring person. The shareholder rights plan and
the rights expire in March 2009, subject to extension.

     For so long as the rights are redeemable, the terms of the rights may be
amended or supplemented by the Board of Directors at any time and from time to
time without the consent of the holders of the rights. At any time when the
rights are not redeemable, the Board of Directors may amend or supplement the
terms of the rights, provided that such amendment does not adversely affect the
interests of the holders of the rights. In no event may any amendment or
supplement be made which changes the redemption price.

     Until a right is exercised, the holder thereof will have no rights as a
stockholder of us, including, without limitation, the right to vote or to
receive dividends, except as holder of the common stock to which the right is
attached.

     For information on the terms of the Series A Preferred Stock, see the
certificate of designation for the Series A Preferred Stock, the form of which
is attached as Exhibit A to the Amended and Restated Rights Agreement, dated as
of March 26, 1999, filed as an exhibit to our Current Report on Form 8-K dated
March 22, 1999, which is incorporated herein by reference.

     SPECIAL MEETINGS OF SHAREHOLDERS. Pursuant to ARS ss. 10-702, a special
meeting of shareholders may be called by a corporation's Board of Directors or
any other person authorized to do so in its articles of incorporation or bylaws.
Our bylaws provide that, except as required by law, special meetings of
shareholders may only be called by a majority of our Board of Directors, the
Chairman of the Board, or the President.

     ELECTION AND REMOVAL OF DIRECTORS. Our Board of Directors is divided into
three classes. The directors in each class serve for a three year term, with one
class being elected each year by our

                                       30

shareholders. The classification of our Board of Directors generally makes it
more difficult for shareholders to effect a change in control because at least
two shareholder meetings are required to elect a majority of our Board. Arizona
law provides for cumulative voting in the election of directors, which may make
it more difficult for shareholders to elect a majority of the Board of
Directors.

     Our bylaws provide that any director may be removed with or without cause,
but only at a special meeting of shareholders called for that purpose, by the
vote of 66 2/3% of the outstanding voting power. However, if less than the
entire Board of Directors is to be removed, no one director may be removed if
the votes cast against the director's removal would be sufficient to elect the
director if then cumulatively voted at an election of the class of directors of
which the director is a part.

     SHAREHOLDER PROPOSALS AND DIRECTOR NOMINATIONS. A shareholder can submit
shareholder proposals and nominate candidates for election to our Board of
Directors if he or she follows the advance notice provisions set forth in our
bylaws.

     With respect to shareholder proposals to bring business before the annual
meeting, shareholders must submit a written notice to the Secretary of the
Company not fewer than 90 or more than 120 days prior to the first anniversary
of the date of our previous year's annual meeting of shareholders. However, if
we have changed the date of the annual meeting by more than 30 days from the
date of the previous year's annual meeting, the written notice must be submitted
no later than ten days after the day we make public the date of the annual
meeting. The written notice must briefly describe the business the shareholder
desires to bring before the meeting, the text of the proposal or business, the
reasons for conducting such business at the meeting, and any material interest
in the proposal of the shareholder and the beneficial owner, if any, on whose
behalf the proposal is made.

     With respect to director nominations, shareholders must submit written
notice to the Secretary of the Company not fewer than 180 days prior to the date
of the annual meeting. This requirement is also contained in our articles of
incorporation. Our bylaws require that the written notice must contain all
information relating to the director nominee that is required to be included in
a proxy statement pursuant to Regulation 14A under the Securities Exchange Act
of 1934, as well as the written consent of the proposed nominee to be named in
the proxy statement as a nominee and to serving as a director if elected.

     All written notices delivered pursuant to the advance notice provisions of
our bylaws are required to state (i) the name and address of the sponsoring
shareholder and the beneficial owner, if any, on whose behalf the proposal or
nomination is made, (ii) the class and number of shares that are owned
beneficially and of record by the shareholder and such beneficial owner, (iii) a
representation that the shareholder is a holder of record entitled to vote at
the meeting and intends to appear in person or by proxy at the meeting to
propose such business or nomination, and (iv) whether the shareholder or
beneficial owner intends or is part of a group that intends to deliver a proxy
statement to holders of at least the number of shares required to adopt the
proposal or elect the nominee or otherwise solicit proxies in favor of the
proposal or nomination.

     Shareholder proposals and director nominations that are late or that do not
include all required information may be rejected. This could prevent
shareholders from bringing certain matters before an annual meeting, including
proposing the election of non-incumbent directors.

     A shareholder must also comply with all applicable laws in proposing
business to be conducted and in nominating directors. The notice provisions of
the bylaws do not affect rights of shareholders to request inclusion of
proposals in our proxy statement pursuant to Rule 14a-8 of the Securities
Exchange Act of 1934.

     ADDITIONAL AUTHORIZED SHARES OF CAPITAL STOCK. The authorized but unissued
shares of common stock and preferred stock available for issuance under our
articles of incorporation could be issued at such times, under such
circumstances, and with such terms and conditions as to impede an acquisition
transaction.

                                       31

     AMENDMENT TO ARTICLES OF INCORPORATION AND BYLAWS. ARS ss. 10-1001 through
1003 generally provide that both the Board of Directors and the shareholders
must approve amendments to an Arizona corporation's articles of incorporation,
except that the Board of Directors may adopt specified ministerial amendments
without shareholder approval. Unless the articles of incorporation, Arizona law
or the Board of Directors would require a greater vote or a different quorum,
the vote required by each voting group allowed or required to vote on the
amendment would be:

     *    a majority of the votes entitled to be cast by the voting group, if
          the amendment would create dissenters rights; and

     *    in any other case, if a quorum is present in person or by proxy
          consisting of a majority of the votes entitled to be cast on the
          matter by the voting group, the votes cast by the voting group in
          favor of the amendment must exceed the votes cast against the
          amendment by the voting group.

     Our articles of incorporation require the approval of at least two-thirds
of the total voting power of all outstanding shares of our voting stock to amend
the provisions in Article Third relating to serial preferred stock, Article
Fifth relating to the election of our directors, including number,
classification, term, and nomination procedure, and Article Tenth relating to
this voting requirement.

     ARS ss. 10-1020 provides that the Board of Directors may amend the
corporation's bylaws unless either: (i) the articles or applicable law reserves
this power exclusively to shareholders in whole or in part or (ii) the
shareholders in amending a particular bylaw provide expressly that the Board may
not amend or repeal that bylaw. An Arizona corporation's shareholders may amend
the corporation's bylaws even though they may also be amended by the Board of
Directors. Our bylaws provide that the following provisions may not be amended
or repealed without the vote of a majority of the Board of Directors or the vote
of 75% of the outstanding voting power:

     *    Section 2.02, which deals with authority to call special meetings of
          shareholders;

     *    Section 3.01, which (i) provides for a staggered board of 9 to 21
          members comprised of shareholders of the Company, (ii) vests in the
          Board of Directors the exclusive power to increase or decrease the
          size of the Board within these limits, and (iii) provides that the
          Board of Directors may fill vacancies in the Board, whether by reason
          of death, resignation, disqualification, an increase in the size of
          the Board or otherwise;

     *    Section 3.13, which deals with removal of directors;

     *    Article XII, which imposes restrictions on business combinations with
          interested shareholders;

     *    Article XIII, which imposes anti-greenmail provisions; and

     *    Article XIV, which deals with amendments to the bylaws.

                      DESCRIPTION OF THE PURCHASE CONTRACTS

     We may issue, from time to time, purchase contracts, including contracts
obligating holders to purchase from us and us to sell to the holders, a
specified principal amount of debt securities or a specified number of shares of
common stock or preferred stock or any of the other securities that we may sell
under this prospectus (or a range of principal amount or number of shares
pursuant to a predetermined formula) at a future date or dates. The
consideration payable upon settlement of the purchase contracts may be fixed at
the time the purchase contracts are issued or may be determined by a specific
reference to a formula set forth in the purchase contracts. The purchase
contracts may be issued separately or as part of units consisting of a purchase
contract and other securities or obligations

                                       32

issued by us or third parties, including United States treasury securities,
securing the holders' obligations to purchase the relevant securities under the
purchase contracts. The purchase contracts may require us to make periodic
payments to the holders of the purchase contracts or units or vice versa, and
the payments may be unsecured or prefunded on some basis. The purchase contracts
may require holders to secure their obligations under the purchase contracts in
a specified manner and in certain circumstances we may deliver newly issued
prepaid purchase contracts, often known as prepaid securities, upon release to a
holder of any collateral securing such holder's obligations under the original
purchase contract.

     The applicable prospectus supplement will describe the terms of any
purchase contracts or purchase units and, if applicable, such other securities
or obligations. The prospectus supplement will describe the terms of any
purchase contracts. The description in the prospectus supplement will not
necessarily be complete and will be qualified in its entirety by reference to
the purchase contracts, and, if applicable, collateral arrangements and
depositary arrangements, relating to the purchase contracts.

                              DESCRIPTION OF UNITS

     We may, from time to time, issue units comprised of one or more of the
other securities that may be offered under this prospectus, in any combination.
Each unit may be issued so that the holder of the unit is also the holder of
each security included in the unit. Thus, the holder of a unit will have the
rights and obligations of a holder of each included security. The unit agreement
under which a unit is issued may provide that the securities included in the
unit may not be held or transferred separately at any time, or at any time
before a specified date.

     Any applicable prospectus supplement will describe:

     *    the material terms of the units and of the securities comprising the
          units, including whether and under what circumstances those securities
          may be held or transferred separately;

     *    any material provisions relating to the issuance, payment, settlement,
          transfer or exchange of the units or of the securities comprising the
          units; and

     *    any material provisions of the governing unit agreement that differ
          from those described above.

                              PLAN OF DISTRIBUTION

     We may sell the securities to one or more underwriters for public offering
and sale by them or may sell the securities to investors through agents or
dealers. Any underwriter or agent involved in the offer and sale of the
securities will be named in the applicable prospectus supplement. We also
reserve the right to sell securities directly to investors on our own behalf in
those jurisdictions where we are authorized to do so.

     Underwriters may offer and sell the securities at a fixed price or prices,
which may be changed, or from time to time at market prices prevailing at the
time of sale, at prices related to prevailing market prices or at negotiated
prices. We also may, from time to time, authorize underwriters acting as our
agents to offer and sell the securities upon the terms and conditions set forth
in any prospectus supplement. In connection with the sale of the securities,
underwriters may be deemed to have received compensation from us in the form of
underwriting discounts or commissions and may also receive commissions from
purchasers of the securities for whom they may act as agent.

     If a dealer is utilized in the sale of the securities in respect of which
this prospectus is delivered, we may sell the securities to the dealer, as
principal. The dealer may then resell the securities to the public at varying
prices to be determined by the dealer at the time of resale.

                                       33

     Any underwriting compensation paid by us to underwriters or agents in
connection with the offering of the securities, and any discounts, concessions
or commissions allowed by underwriters to participating dealers, will be set
forth in an applicable prospectus supplement. Underwriters, dealers and agents
participating in the distribution of the securities may be deemed to be
underwriters under the Securities Act, and any discounts and commissions
received by them and any profit realized by them on resale of the securities may
be deemed to be underwriting discounts and commissions under the Securities Act.
Underwriters, dealers and agents may be entitled under agreements with us to
indemnification against and contribution toward certain civil liabilities,
including liabilities under the Securities Act, and to reimbursement by us for
certain expenses.

     In connection with underwritten offerings of securities, underwriters may
over-allot or effect transactions that stabilize, maintain or otherwise affect
the market price of the offered securities at levels above those that might
otherwise prevail in the open market, including by entering stabilizing bids,
effecting syndicate covering transactions or imposing penalty bids, each of
which is described below.

     *    A stabilizing bid means the placing of any bid, or the effecting of
          any purchase, for the purpose of pegging, fixing or maintaining the
          price of a security.

     *    A syndicate covering transaction means the placing of any bid on
          behalf of the underwriting syndicate or the effecting of any purchase
          to reduce a short position created in connection with the offering.

     *    A penalty bid means an arrangement that permits the managing
          underwriter to reclaim a selling concession from a syndicate member in
          connection with the offering when offered securities originally sold
          by the syndicate member are purchased in syndicate covering
          transactions.

     These transactions may be effected on the New York Stock Exchange, in the
over-the-counter market or otherwise. Underwriters are not required to engage in
any of these activities, or to continue the activities if commenced.

     If so indicated in an applicable prospectus supplement, we may authorize
dealers acting as our agents to solicit offers by institutions to purchase the
securities from us at the public offering price set forth in the prospectus
supplement pursuant to delayed delivery contracts providing for payment and
delivery on the date or dates stated in the prospectus supplement. Each delayed
delivery contract will be for an amount not less than, and the aggregate
principal amount or offering price of the securities sold pursuant to delayed
delivery contracts will not be less nor more than, the respective amounts stated
in the prospectus supplement. Institutions with whom delayed delivery contracts,
when authorized, may be entered into include commercial and savings banks,
insurance companies, pension funds, investment companies, educational and
charitable institutions and other institutions, but will in all cases be subject
to approval by us.

     The securities may also be offered and sold, if so indicated in the
prospectus supplement, in connection with a remarketing upon their purchase, in
accordance with a redemption or repayment pursuant to their terms, or otherwise,
by one or more firms ("remarketing firms"), acting as principals for their own
accounts or as agents for us. Any remarketing firm will be identified and the
terms of its agreement, if any, with us and its compensation will be described
in the applicable prospectus supplement. Remarketing firms may be deemed to be
underwriters in connection with the securities remarketed by them. Remarketing
firms may be entitled under agreements which may be entered into with us to
indemnification by us against certain liabilities, including liabilities under
the Securities Act.

     The securities may or may not be listed on a national securities exchange
or a foreign securities exchange. No assurances can be given that there will be
a market for any of the securities.

                                       34

     One or more of the underwriters, and/or one or more of their respective
affiliates, may be a lender under our credit agreements and may provide other
commercial banking, investment banking and other services to us and/or our
subsidiaries and affiliates in the ordinary course of business.

                                     EXPERTS

     The financial statements and the related financial statement schedule
incorporated in this prospectus by reference from the Company's Current Report
on Form 8-K dated November 21, 2002 have been audited by Deloitte & Touche LLP,
independent auditors, as stated in their report, (which report expresses an
unqualified opinion and includes an explanatory paragraph relating to the change
in 2001 in the method of accounting for derivatives and hedging activities in
order to comply with the provisions of Statement of Financial Accounting
Standards No. 133), which is incorporated herein by reference, and have been so
incorporated in reliance upon the report of such firm given upon their authority
as experts in accounting and auditing.

                                 LEGAL OPINIONS

     Snell & Wilmer L.L.P., One Arizona Center, Phoenix, Arizona 85004 will
opine on the validity of the offered securities for us. We currently anticipate
that Sullivan and Cromwell, 1888 Century Park East, Los Angeles, California
90067 will opine on the validity of the offered securities for any underwriters.
Snell & Wilmer L.L.P. may rely as to all matters of New York law upon the
opinion of Sullivan & Cromwell. Sullivan & Cromwell may rely as to all matters
of Arizona law upon the opinion of Snell & Wilmer L.L.P.

                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

Securities and Exchange Commission registration fee.................. $ 89,600
Printing, engraving, and postage expenses............................   60,000 *
Legal fees...........................................................  200,000 *
Accounting fees......................................................   45,000 *
Rating Agency fees...................................................  303,000 *
Trustee's fees and expenses..........................................   10,000 *
Blue Sky fees and expenses...........................................   25,000 *
Miscellaneous........................................................    2,400 *
                                                                      --------
         Total....................................................... $735,000 *
                                                                      ========

----------
*    Estimated.

ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     The Arizona Business Corporation Act (the "ABCA") permits extensive
indemnification of present and former directors, officers, employees or agents
of an Arizona corporation, whether or not authority for such indemnification is
contained in the indemnifying corporation's articles of incorporation or bylaws.
Specific authority for indemnification of present and former directors and
officers to the fullest extent permitted by applicable law is contained in
Article VII of Pinnacle West Capital Corporation's bylaws. Such indemnification
is mandatory.

     Under the ABCA, in order for a corporation to indemnify a director or
officer, a majority of the corporation's disinterested directors, special legal
counsel, or the shareholders must find that the conduct of the individual to be
indemnified was in good faith and that the individual reasonably believed that
the conduct was in the corporation's best interests (in the case of conduct in
an "official capacity" with the

                                       35

corporation) or that the conduct was at least not opposed to the corporation's
best interests (in all other cases). In the case of any criminal proceeding, the
finding must be to the effect that the individual had no reasonable cause to
believe the conduct was unlawful. Indemnification is permitted with respect to
expenses, judgments, fines, and amounts paid in settlement by such individuals.
Broader indemnification is allowed, with certain limitations, for an officer who
is not also a director or where the basis on which the officer was made a party
to the proceeding is an act or omission solely as an officer, as provided in the
articles of incorporation, bylaws, a resolution of the board of directors or a
contract.

     Indemnification under the ABCA is permissive, except in the event of a
successful defense, in which case a director or officer must be indemnified
against reasonable expenses, including attorneys' fees, incurred in connection
with the proceeding. In addition, the ABCA requires Arizona corporations to
indemnify any "outside director" (a director who is not an officer, employee or
holder of five percent or more of any class of the corporation's stock or the
stock of any affiliate of the corporation) against liability unless (i) the
corporation's articles of incorporation limit such indemnification, (ii) the
outside director is adjudged liable in a proceeding by or in the right of the
corporation or in any other proceeding charging improper personal benefit to the
director, or (iii) a court determines, before payment to the outside director,
that the director failed to meet the standards of conduct described in the
preceding paragraph. A court may also order that an individual be indemnified if
the court finds that the individual is fairly and reasonably entitled to
indemnification in light of all of the relevant circumstances, whether or not
the individual has met the standards of conduct in this and the preceding
paragraph or was adjusted liable as described above.

     Insurance is maintained on a regular basis (and not specifically in
connection with this offering) against liabilities arising on the part of
directors and officers out of their performance in such capacities or arising on
the part of Pinnacle West Capital Corporation out of its foregoing
indemnification provisions, subject to certain exclusions and to the policy
limits.

     For information regarding the undertaking by Pinnacle West Capital to
submit to adjudication the issue of indemnification for violation of the
securities laws, see Item 17 hereof.

ITEM 16. EXHIBITS.

Exhibit No.           Description
-----------           -----------
   *1.1       Form of Underwriting Agreement with respect to Debt Securities

   *1.2       Form of Underwriting Agreement with respect to Preferred Stock

   *1.3       Form of Underwriting Agreement with respect to Common Stock

   *1.4       Form of Underwriting Agreement with respect to Purchase Contracts

   *1.5       Form of Underwriting Agreement with respect to Units

    4.1       Articles of Incorporation, restated as of July 29, 1988
              (incorporated by reference to Exhibit 19.1 to the Company's
              Quarterly Report on Form 10-Q for the quarter ended September 30,
              1988)

    4.2       Bylaws, amended as of September 18, 2002 (incorporated by
              reference to Exhibit 3.1 to the Company's Quarterly Report on Form
              10-Q for the quarter ended September 30, 2002)

    4.3       Amended and Restated Rights Agreement, dated as of March 26, 1999
              (incorporated by reference to 4.1 to the Company's Current Report
              on Form 8-K dated March 22, 1999)

                                       36

    4.4       Amendment to Rights Agreement effective as of January 1, 2002
              (incorporated by reference to Exhibit 4.1 to the Company's
              Quarterly Report on Form 10-Q for the quarter ended March 31,
              2002)

    4.5       Indenture dated as of December 1, 2000 for Senior Debt Securities
              (incorporated by reference to Exhibit 4.1 to the Company's
              Registration Statement on Form S-3 (Registration No. 333-52476)
              filed with the SEC on December 21, 2000)

    4.6       First Supplemental Indenture dated as of March 15, 2001 to the
              Indenture dated as of December 1, 2000 for Senior Debt Securities
              (incorporated by reference to Exhibit 1.1 to the Company's Form
              8-K Report dated March 21, 2001)

   *4.7       Form of Senior Debt Securities

    4.8       Indenture dated as of December 1, 2000 for Subordinated Debt
              Securities (incorporated by reference to Exhibit 4.2 to the
              Company's Registration Statement on Form S-3 (Registration No.
              333-52476) filed with the SEC on December 21, 2000)

   *4.9       Form of Subordinated Debt Securities

   4.10       Form of Convertible Senior Debt Securities Indenture

  *4.11       Form of Convertible Senior Debt Securities

   4.12       Form of Convertible Subordinated Debt Securities Indenture

  *4.13       Form of Convertible Subordinated Debt Securities

  *4.14       Form(s) of Supplemental Indenture relating to Debt Securities

  *4.15       Statement of Preferred Stock Designations

  *4.16       Form of Preferred Stock Certificate

  *4.17       Form of Purchase Contract (including form of Purchase Contract
              Certificate) and, if applicable, Pledge Agreement

  *4.18       Form of Unit Agreement (including Unit Certificate)

  *4.19       Form of Common Stock Certificate

    5.1       Opinion of Snell & Wilmer L.L.P.

   12.1       Computation of Ratio of Earnings to Fixed Charges

   12.2       Computation of Ratio of Combined Earnings to Fixed Charges and
              Preferred Stock dividends

   23.1       Consent of Snell & Wilmer L.L.P. (included in Opinion filed as
              Exhibit 5.1)

   23.2       Consent of Deloitte & Touche LLP

   24.1       Powers of Attorney (contained within the signature page hereto)

                                       37

   25.1       Form T-1 Statement of Eligibility under the Trust Indenture Act of
              1939, as amended, under the Indenture relating to the Senior Debt
              Securities

   25.2       Form T-1 Statement of Eligibility under the Trust Indenture Act of
              1939, as amended, under the Indenture relating to the Subordinated
              Debt Securities

   25.3       Form T-1 Statement of Eligibility under the Trust Indenture Act of
              1939, as amended, under the Indenture relating to the Convertible
              Senior Debt Securities

   25.4       Form T-1 Statement of Eligibility under the Trust Indenture Act of
              1939, as amended, under the Indenture relating to the Convertible
              Subordinated Debt Securities

----------
*    To be filed by a post-effective amendment to the registration statement or
     incorporated by reference from a Current Report on Form 8-K.

ITEM 17. UNDERTAKINGS.

     The undersigned registrant hereby undertakes:

     (1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this registration statement:

          (i) to include any prospectus required by Section 10(a)(3) of the
     Securities Act of 1933;

          (ii) to reflect in the prospectus any facts or events arising after
     the effective date of the registration statement (or the most recent
     post-effective amendment thereof) which, individually or in the aggregate,
     represent a fundamental change in the information set forth in the
     registration statement; notwithstanding the foregoing, any increase or
     decrease in the volume of securities offered (if the total dollar value of
     securities offered would not exceed that which was registered) and any
     deviation from the low or high end of the estimated maximum offering range
     may be reflected in the form of prospectus filed with the Commission
     pursuant to Rule 424(b) if, in the aggregate, the changes in volume and
     price represent no more than a 20 percent change in the maximum aggregate
     offering price set forth in the "Calculation of Registration Fee" table in
     the effective registration statement; and

          (iii) to include any material information with respect to the plan of
     distribution not previously disclosed in the registration statement or any
     material change to such information in the registration statement; provided
     however, that paragraphs (1)(i) and (1)(ii) do not apply if the
     registration statement is on Form S-3 or Form S-8 and the information
     required to be included in a post-effective amendment by those paragraphs
     is contained in periodic reports filed with or furnished to the Commission
     by the registrant pursuant to section 13 or section 15(d) of the Securities
     Exchange Act of 1934 that are incorporated by reference in the registration
     statement.

     (2) That, for the purpose of determining any liability under the Securities
Act of 1933, each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

     (3) To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

                                       38

     (4) That, for purposes of determining any liability under the Securities
Act of 1933, each filing of the registrant's annual report pursuant to section
13(a) or section 15(d) of the Securities Exchange Act of 1934 (and, where
applicable, each filing of an employee benefit plan's annual report pursuant to
Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by
reference in the registration statement shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.

     (5) That, insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers, and controlling
persons of the registrant pursuant to the provisions referred to in Item 15 of
this Registration Statement, or otherwise, the registrant has been advised that,
in the opinion of the Securities and Exchange Commission, such indemnification
is against public policy as expressed in the Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the registrant of expenses incurred or
paid by a director, officer, or controlling person of the registrant in the
successful defense of any action, suit, or proceeding) is asserted by such
director, officer, or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question of whether such indemnification by it is against
public policy as expressed in the Act and will be governed by the final
adjudication of such issue.

     (6) That, for purposes of determining any liability under the Securities
Act of 1933, the information omitted from the form of prospectus filed as part
of this registration statement in reliance upon Rule 430A and contained in a
form of prospectus filed by the registrant pursuant to rule 424(b)(1) or (4) or
497(h) under the Securities Act shall be deemed to be part of this registration
statement as of the time it was declared effective.

     (7) That, for the purpose of determining any liability under the Securities
Act of 1933, each post-effective amendment that contains a form of prospectus
shall be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.

                                       39

                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing this registration statement on Form S-3 and has duly
caused this registration statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Phoenix, State of Arizona
on the 25th day of November, 2002.

                                        PINNACLE WEST CAPITAL CORPORATION

                                        By: William J. Post
                                            ------------------------------------
                                            (William J. Post, Chairman of the
                                             Board and Chief Executive Officer)

     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated. Each person whose signature appears below
hereby authorizes Jack E. Davis, Barbara M. Gomez and Nancy C. Loftin, and each
of them, as attorneys-in-fact, to sign in his or her name and behalf,
individually and in each capacity designated below, and to file any amendments,
including post-effective amendments, to this registration statement.

         Signature                        Title                        Date
         ---------                        -----                        ----

      William J. Post
---------------------------    Principal Executive Officer     November 25, 2002
     (William J. Post,                 and Director
   Chairman of the Board
and Chief Executive Officer

       Jack E. Davis
---------------------------    Principal Accounting Officer    November 25, 2002
      (Jack E. Davis,                  and Director
        President)

    Michael V. Palmeri
---------------------------    Principal Financial Officer     November 25, 2002
   (Michael V. Palmeri,
 Vice President, Finance)

   Edward N. Basha, Jr.
---------------------------              Director              November 25, 2002
  (Edward N. Basha, Jr.)

   Michael L. Gallagher
---------------------------              Director              November 25, 2002
  (Michael L. Gallagher)

       Pamela Grant
---------------------------              Director              November 25, 2002
      (Pamela Grant)

   Roy A. Herberger, Jr.
---------------------------              Director              November 25, 2002
  (Roy A. Herberger, Jr.)

                                       40


      Martha O. Hesse
---------------------------              Director              November 25, 2002
     (Martha O. Hesse)


---------------------------              Director
(William S. Jamieson, Jr.)

     Humberto S. Lopez
---------------------------              Director              November 25, 2002
    (Humberto S. Lopez)

     Robert G. Matlock
---------------------------              Director              November 25, 2002
    (Robert G. Matlock)

     Kathryn L. Munro
---------------------------              Director              November 25, 2002
    (Kathryn L. Munro)

    Bruce J. Nordstrom
---------------------------              Director              November 25, 2002
   (Bruce J. Nordstrom)

    William L. Stewart
---------------------------              Director              November 25, 2002
   (William L. Stewart)

                                       41

                                                      Registration No. 333-
================================================================================






                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549


                                   ----------


                                  EXHIBITS TO

                                    FORM S-3

                             REGISTRATION STATEMENT
                                     Under

                           THE SECURITIES ACT OF 1933


                                   ----------


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






================================================================================

                               INDEX TO EXHIBITS

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

   *1.1       Form of Underwriting Agreement with respect to Debt Securities

   *1.2       Form of Underwriting Agreement with respect to Preferred Stock

   *1.3       Form of Underwriting Agreement with respect to Common Stock

   *1.4       Form of Underwriting Agreement with respect to Purchase Contracts

   *1.5       Form of Underwriting Agreement with respect to Units

    4.1       Articles of Incorporation, restated as of July 29, 1988
              (incorporated by reference to Exhibit 19.1 to the Company's
              Quarterly Report on Form 10-Q for the quarter ended September 30,
              1988)

    4.2       Bylaws, amended as of September 18, 2002 (incorporated by
              reference to Exhibit 3.1 to the Company's Quarterly Report on Form
              10-Q for the quarter ended September 30, 2002)

    4.3       Amended and Restated Rights Agreement, dated as of March 26, 1999
              (incorporated by reference to 4.1 to the Company's Current Report
              on Form 8-K dated March 22, 1999)

    4.4       Amendment to Rights Agreement effective as of January 1, 2002
              (incorporated by reference to Exhibit 4.1 to the Company's
              Quarterly Report on Form 10-Q for the quarter ended March 31,
              2002)

    4.5       Indenture dated as of December 1, 2000 for Senior Debt Securities
              (incorporated by reference to Exhibit 4.1 to the Company's
              Registration Statement on Form S-3 (Registration No. 333-52476)
              filed with the SEC on December 21, 2000)

    4.6       First Supplemental Indenture dated as of March 15, 2001 to the
              Indenture dated as of December 1, 2000 for Senior Debt Securities
              (incorporated by reference to Exhibit 1.1 to the Company's Form
              8-K Report dated March 21, 2001)

   *4.7       Form of Senior Debt Securities

    4.8       Indenture dated as of December 1, 2000 for Subordinated Debt
              Securities (incorporated by reference to Exhibit 4.2 to the
              Company's Registration Statement on Form S-3 (Registration No.
              333-52476) filed with the SEC on December 21, 2000)

   *4.9       Form of Subordinated Debt Securities

   4.10       Form of Convertible Senior Debt Securities Indenture

  *4.11       Form of Convertible Senior Debt Securities

   4.12       Form of Convertible Subordinated Debt Securities Indenture

  *4.13       Form of Convertible Subordinated Debt Securities

  *4.14       Form(s) of Supplemental Indenture relating to Debt Securities

  *4.15       Statement of Preferred Stock Designations

  *4.16       Form of Preferred Stock Certificate

  *4.17       Form of Purchase Contract (including form of Purchase Contract
              Certificate) and, if applicable, Pledge Agreement

  *4.18       Form of Unit Agreement (including Unit Certificate)

  *4.19       Form of Common Stock Certificate

    5.1       Opinion of Snell & Wilmer L.L.P.

   12.1       Computation of Ratio of Earnings to Fixed Charges

   12.2       Computation of Ratio of Combined Earnings to Fixed Charges and
              Preferred Stock dividends

   23.1       Consent of Snell & Wilmer L.L.P. (included in Opinion filed as
              Exhibit 5.1)

   23.2       Consent of Deloitte & Touche LLP

   24.1       Powers of Attorney (contained within the signature page hereto)

   25.1       Form T-1 Statement of Eligibility under the Trust Indenture Act of
              1939, as amended, under the Indenture relating to the Senior Debt
              Securities

   25.2       Form T-1 Statement of Eligibility under the Trust Indenture Act of
              1939, as amended, under the Indenture relating to the Subordinated
              Debt Securities

   25.3       Form T-1 Statement of Eligibility under the Trust Indenture Act of
              1939, as amended, under the Indenture relating to the Convertible
              Senior Debt Securities

   25.4       Form T-1 Statement of Eligibility under the Trust Indenture Act of
              1939, as amended, under the Indenture relating to the Convertible
              Subordinated Debt Securities

----------
*    To be filed by a post-effective amendment to the registration statement or
     incorporated by reference from a Current Report on Form 8-K.