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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 11-K
ANNUAL REPORT PURSUANT TO SECTION
15(d) OF THE SECURITIES EXCHANGE
ACT OF 1934
(Mark One)
     
þ   ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED, EFFECTIVE OCTOBER 7, 1996].
For the fiscal year ended December 31, 2005
OR
     
o   TRANSITION REPORT PURSUANT TO 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED].
For the transition period from                      to                     
Commission file number 1-8962
The Pinnacle West Capital Corporation Savings Plan
(Full title of the plan)
Pinnacle West Capital Corporation
(Name of issuer)
400 North Fifth Street
P.O. Box 53999
Phoenix, Arizona 85072-3999
(Address of issuer’s principal executive office)
 
 

 


 

THE PINNACLE WEST CAPITAL CORPORATION SAVINGS PLAN
TABLE OF CONTENTS
         
      PAGE  
    1  
 
       
FINANCIAL STATEMENTS:
       
 
       
    2  
 
       
    3  
 
       
    4-14  
 
       
SUPPLEMENTAL SCHEDULE:
       
 
       
    15-17  
 
       
    18  
 EX-23.1
NOTE: Supplemental schedules required by section 2520.103-10 of the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974, other than the schedules listed above, are omitted because of the absence of the conditions under which they are required.

 


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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Trustees and Participants of
The Pinnacle West Capital Corporation Savings Plan
Phoenix, Arizona
We have audited the accompanying statements of net assets available for benefits of The Pinnacle West Capital Corporation Savings Plan (the “Plan”) as of December 31, 2005 and 2004, and the related statement of changes in net assets available for benefits for the year ended December 31, 2005. These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on these financial statements based on our audits.
We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Plan is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Plan’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.
In our opinion, such financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2005 and 2004, and the changes in net assets available for benefits for the year ended December 31, 2005 in conformity with accounting principles generally accepted in the United States of America.
Our audits were conducted for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental schedule of assets (held at end of year) as of December 31, 2005 is presented for the purpose of additional analysis and is not a required part of the basic financial statements, but is supplementary information required by the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. This schedule is the responsibility of the Plan’s management. Such schedule has been subjected to the auditing procedures applied in our audit of the basic 2005 financial statements and, in our opinion, is fairly stated in all material respects when considered in relation to the basic financial statements taken as a whole.
DELOITTE & TOUCHE LLP
Phoenix, Arizona
June 27, 2006

 


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THE PINNACLE WEST CAPITAL CORPORATION SAVINGS PLAN
STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
DECEMBER 31, 2005 and 2004
                 
    2005   2004
     
ASSETS:
               
Investments (Notes 2, 4 & 5)
  $ 718,581,856     $ 664,107,121  
 
               
RECEIVABLES:
               
Employer contributions (Note 3)
    2,048,823       2,005,595  
Participant contributions
    1,609,167       1,448,493  
Interest and other receivables
    62,257       32,939  
     
Total receivables
    3,720,247       3,487,027  
     
 
               
Total assets
    722,302,103       667,594,148  
     
 
               
LIABILITIES:
               
Securities purchased, net
    1,213,843       2,109,594  
     
 
               
NET ASSETS AVAILABLE FOR BENEFITS
  $ 721,088,260     $ 665,484,554  
     
See Notes to Financial Statements.

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THE PINNACLE WEST CAPITAL CORPORATION SAVINGS PLAN
STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
FOR THE YEAR ENDED DECEMBER 31, 2005
         
    2005  
ADDITIONS TO NET ASSETS ATTRIBUTED TO:
       
 
       
Contributions (Note 1):
       
Employer (Note 3)
  $ 13,494,349  
Participants
    41,597,459  
 
     
Total contributions
    55,091,808  
 
     
 
       
Investment income (Note 2):
       
Dividends
    8,193,835  
Interest and other income
    8,026,784  
Net appreciation in fair value of investments (Note 5)
    13,122,072  
 
     
Total investment income
    29,342,691  
 
     
 
       
Total additions
    84,434,499  
 
     
 
       
DEDUCTIONS FROM NET ASSETS ATTRIBUTED TO :
       
 
       
Benefit payments
    28,661,994  
Administrative expenses
    168,799  
 
     
Total deductions
    28,830,793  
 
     
 
       
Increase in net assets
    55,603,706  
 
       
NET ASSETS AVAILABLE FOR BENEFITS:
       
 
       
Beginning of year
    665,484,554  
 
     
End of year
  $ 721,088,260  
 
     
See Notes to Financial Statements.

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THE PINNACLE WEST CAPITAL CORPORATION SAVINGS PLAN
NOTES TO FINANCIAL STATEMENTS
1. DESCRIPTION OF THE PLAN
     The following description of The Pinnacle West Capital Corporation Savings Plan (the “Plan”) provides only general information. Participants should refer to the Plan document for a more complete description of the Plan’s provisions.
     General
     The Plan is a defined contribution plan sponsored by Pinnacle West Capital Corporation (“Pinnacle West” or the “Company”). The Plan is made up of two component plans, a profit sharing component with cash or deferred features and a stock bonus component which constitutes an Employee Stock Ownership Plan (“ESOP”). The ESOP component of the Plan consists of Plan assets invested in the Pinnacle West Stock Fund and the balance of all Plan assets constitutes the profit sharing component. The Plan is administered by a committee appointed by the Pinnacle West Board of Directors. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”). Wells Fargo Bank, Minnesota, N.A. (“Trustee”) serves as the Trustee of the Plan.
     Eligibility
     Generally, most active full-time employees of Pinnacle West and its subsidiaries, including Arizona Public Service Company, Pinnacle West Energy Corporation, APS Energy Services Company, Inc., El Dorado Investment Company and the active salaried employees of SunCor Development Company (collectively, the “Employer”), are eligible to participate in (1) the pre-tax and after-tax features of the Plan on the first day of the month following their attainment of age 18 and Completion of thirty-one consecutive days of employment and (2) the matching feature on the first day of the month following their attainment of age 18 and completion of six months of service. Eligible employees hired in a classification other than regular full-time are eligible to participate upon attainment of age 18 and completion of 1,000 hours of service during a 12 month period of employment beginning on their date of hire or an anniversary of that date. The Plan provides credit for periods of

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employment with an affiliate of Pinnacle West as if the service was performed for the Employer.
     Contributions
     The Plan allows participants to contribute up to 50% of their base pay on a pre-tax basis or after-tax basis, provided that in no event can the total pre-tax and after-tax contributions made by any participant in any year exceed 50% of his or her base pay. The Plan also allows participants attaining the age of 50 or older by the end of the calendar year to make catch-up contributions in accordance with the provisions of the Economic Growth and Tax Relief Reconciliation Act of 2001. The maximum allowable pre-tax contribution ($14,000 for 2005) and catch-up contribution ($4,000 for 2005) will increase $1,000 per year through 2006, and thereafter will be linked to the cost of living index and could change on an annual basis.
     Employer contributions are fixed at 75% of the first 6% of base pay a participant contributes to the Plan on a pre-tax basis (excluding catch-up contributions) for participants (excluding active salaried employees of SunCor Development Company) hired on or after January 1, 2003, for active salaried employees of SunCor Development Company hired on or after January 1, 2006 and for participants electing to participate in the Retirement Account Balance Plan feature of the Pinnacle West Capital Corporation Retirement Plan. Participants hired prior to January 1, 2003 and active salaried employees of SunCor Development Company hired prior to January 1, 2006, not electing to participate in the Retirement Account Balance Plan feature of the Pinnacle West Capital Corporation Retirement Plan receive an employer match of 50% on the first 6% of base pay he or she contributes to the Plan on a pre-tax basis (excluding catch-up contributions).
     While the Employer contributions may be in cash, common stock, or other property acceptable to the Trustee, regardless of the form of contribution, contributions are allocated to the Pinnacle West Stock Fund. Non-cash contributions are recorded at fair value.
     The Plan allows rollover contributions from other qualified plans subject to certain criteria.
     Participants may elect to receive dividends on Pinnacle West stock in their account in the form of cash. If a participant does not elect to receive the dividend in the form of

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cash prior to the dividend payable date for that dividend, it is automatically reinvested in the Pinnacle West Stock Fund.
     Participant Accounts
     Individual accounts are maintained for each Plan participant. Each participant has separate accounts (sources of money) that are credited with the participant’s pre-tax, after-tax, rollover contributions (if any), the Employer’s matching contributions and an allocation of Plan earnings. Each participant’s account is charged with withdrawals and an allocation of Plan losses. Allocations of earnings and losses are based on participant account balances. The benefit to which a participant is entitled is the portion of the participant’s account that has vested, as defined below.
     Investment Choices
     Participants direct their contributions into one or more of the following investment options: Fixed Income Fund, Intermediate Bond Fund, Conservative, Moderate, and Aggressive LifeStyle Funds, Index Fund, Large Cap Value Fund, Large Cap Growth Fund, Mid Cap Core Fund, Small Cap Core Fund, International Fund, and the Pinnacle West Stock Fund. Employer contributions are automatically invested in the Pinnacle West Stock Fund. The Plan permits fully vested participants to transfer amounts in their Employer contributions account from the Pinnacle West Stock Fund to one or more of the other investment options available under the Plan. See Note 6 for additional information.
     Loan Feature
     Participants may borrow money from their pre-tax contributions account, vested Employer contributions account and rollover account (if any). Participants may not borrow against their Employer transfer account, or their after-tax contributions account.
     The minimum participant loan allowed is $1,000, and the maximum available is 50% of the participant’s vested account balance, up to $50,000, reduced by the participant’s highest outstanding loan balance in the 12-month period ending on the day before the loan is made. Only one loan per participant may be outstanding at any one time. Loan terms are up to five years, or up to 15 years for the purchase of a principal residence. An administrative fee is charged to the participant’s account for each loan.

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     The interest rate is determined at the time the loan is requested and is fixed for the life of the loan. The interest rate shall be at least as great as the interest rate charged by the Trustee to its individual clients for an unsecured loan on the date the loan is made. The Trustee currently charges prime interest rate plus one percent, determined as of the first business day of the month in which the loan is issued. Interest rates for loans issued during 2005 were 6.25% to 8%. Interest rates for outstanding loans as of December 31, 2005 and 2004 ranged from 5% to 10.5%.
     Loans are treated as an investment of the participant’s accounts. To fund the loan, transfers are made from the participant’s investment funds on a pro-rata basis. Loan repayments are invested in the participant’s investment funds based on the participant’s current investment election. Loan repayments, including interest, are generally made through irrevocable semi-monthly payroll deductions. Loans are secured by the participant’s account balance.
     Vesting
     Each participant is fully vested in the participant’s pre-tax, after-tax, and rollover contribution (if any) accounts (consisting of the participant’s contributions and related income and appreciation or depreciation) and Employer transfer account. The participants become vested in their Employer contributions account (consisting of Employer contributions and related income and appreciation or depreciation) upon the first of the following to occur: termination of service by death; disability or retirement; attaining the age of sixty-five or, if later, completing five years of participation in the Plan; termination of the Plan; or complete discontinuance of Employer contributions. Otherwise, participants vest in graduated amounts with 100 percent vesting after five years of service, beginning with the employee’s date of hire. See Note 8 for additional information.
     Withdrawals and Distributions
     A participant may at any time make a full or partial withdrawal of the balance in the participant’s after-tax contribution account and rollover contribution account (if any). No withdrawals prior to termination of service are permitted from a participant’s Employer transfer account. No withdrawals prior to termination of service are permitted from the participant’s pre-tax contribution account, except under certain limited circumstances

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relating to financial hardship. If an employee withdraws pre-tax contributions, the only earnings on those contributions that can be withdrawn are those credited prior to January 1, 1989. Participants who are fully vested and who have participated in the Plan for five complete plan years may withdraw the amount in their Employer contributions account. When the participant’s employment with the Employer is terminated, the participant can elect to receive, as soon as administratively possible, a distribution of the vested portion of his or her Employer contributions account together with the participant’s contribution accounts and Employer transfer account. Participants at least age 59-1/2 may withdraw or rollover any portion of their pre-tax contributions or rollover account (if any) while employed. The following are applicable: a maximum of two withdrawals or rollovers may be requested per year; earnings on pre-tax contributions and rollover account are included; there are no restrictions on the reason for withdrawal or rollover (if any), and penalties do not apply.
     Forfeitures
     Forfeitures of nonvested Employer contributions will occur upon the earlier of distribution following termination of employment with the Employer or the end of the fifth calendar year following the calendar year in which the participant terminated employment. If a former participant who received a distribution becomes reemployed prior to the end of the fifth calendar year following the calendar year in which the participant’s earlier termination of employment occurred, the forfeited Employer contributions will be restored to the participant’s Employer contribution account; however, the forfeiture is restored only if the participant repays the full amount previously distributed to him or her within five years of his or her date of reemployment or, if earlier, the last day of the fifth calendar year following the calendar year in which the distribution occurred. At December 31, 2005 and 2004, forfeited nonvested accounts totaled $11,628 and $109,275, respectively. Forfeitures are used to reduce future Employer contributions to the Plan. During the year ended December 31, 2005, Employer contributions were reduced by $82,000 from forfeited nonvested accounts.

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     Termination of the Plan
     It is the Company’s present expectation that the Plan and the payment of Employer contributions will be continued indefinitely. However, continuance of any feature of the Plan is not assumed as a contractual obligation. The Company, at its discretion, may terminate the Plan and distribute net assets, subject to the provisions set forth in ERISA and the Internal Revenue Code. In this event, the balance credited to the accounts of participants at the date of termination shall be fully vested and nonforfeitable.
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
     Basis of Accounting
     The accompanying financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America.
     Use of Estimates
     The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires Plan management to make estimates and assumptions that affect the reported amounts of net assets available for benefits and changes therein. Actual results could differ from those estimates.
     Risks and Uncertainties
     The Plan utilizes various investment instruments including: mutual funds, common and collective trust funds, guaranteed investment contracts, stocks and bonds. Investment securities, in general, are exposed to various risks, such as interest rate risk, credit risk, liquidity risk, and overall market volatility. Due to the level of risk associated with certain investment securities, it is reasonably possible that changes in the values of investment securities will occur in the near term and that such changes could materially affect the amounts reported in the financial statements.
     Investments
     The Plan’s investments are stated at fair value except for its benefit-responsive investment contracts, which are valued at contract value (see Note 4). Quoted market prices are used to value investments. Shares of mutual funds are valued at quoted market prices, which represent the net asset value of shares held by the Plan at year end. Common

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and collective funds are valued at fair value, as determined by the Trustee, based on market prices of the underlying securities. Participant loans are valued at the outstanding loan balances. Management fees and operating expenses charged to the Plan for investments in the mutual funds are deducted from income earned on a daily basis and are not separately reflected. Consequently, management fees are reflected as a reduction of investment return for such investments.
     Income Recognition
     Investment transactions are recorded as of the trade date. Interest income is recorded on the accrual basis. Dividend income is recorded as of the ex-dividend dates.
     Administrative Expenses
     Participants pay administrative fees for loans, investment expenses charged by funds which are deducted from income and reflected as a reduction of investment return for the fund, and redemption fees for certain funds when not held for the required period of investment. Pinnacle West pays the remaining Plan administration expenses such as legal expenses of the Plan (See Note 8).
     Payment of Benefits
     Benefit payments to participants are recorded upon distribution.
3. FEDERAL INCOME TAX STATUS
     Plan management received a determination letter dated June 30, 2003 from the Internal Revenue Service indicating that the Plan has been determined to be a qualified plan under the provisions of the Internal Revenue Code. In 2004, management identified an error in the manner that vesting and eligibility service has been credited for employees who originally served as temporary employees through leasing arrangements, prior to being hired as an employee of the Company, which impacts the Plan. Legal counsel for the Company filed a submission with the IRS pursuant to the Employee Plans Compliance Resolution System, seeking IRS approval of the method by which the Company proposes to correct this error. The proposed correction is to restore the accounts of affected employees by making applicable contributions in the estimated amount of $1,500,000. At December 31, 2005 and 2004, the $1,500,000 is included in Employer contributions receivable. The proposed methodology for correction was approved by the Internal Revenue Service in a

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Compliance Statement dated June 6, 2006. The Company has committed to correcting all operational deficiencies within 150 days of the date of the Compliance Statement to maintain the Plan’s qualified status. Subject to completion of that correction, the Company believes the Plan has maintained its tax-exempt status. Therefore, no provision for income taxes has been included in the Plan’s financial statements.
4. GUARANTEED INVESTMENT CONTRACTS
     The Plan invests in guaranteed investment contracts (“GICs”). All investment contracts held by the Plan are considered fully benefit-responsive and are recorded at contract value. A benefit-responsive contract provides for all participant-initiated transactions permitted by the Plan to be executed at contract value with no conditions, limits, or restrictions. Contract value represents contributions made under the contract, plus interest at the contract rate, less withdrawals and administrative expenses.
     There are no reserves against contract value for credit risk of the contract issuer or otherwise. The weighted-average crediting interest rates for the contracts held by the Plan were 4.49% and 4.40% at December 31, 2005 and 2004, respectively. The crediting interest rates on the GICs are fixed or reset on a quarterly or semi-annual basis, based on the terms of the contract. The average yield for 2005 and 2004 approximated the weighted-average crediting interest rate.
     Several of the GICs are synthetic investment contracts. A synthetic GIC is an investment contract that simulates the performance of a traditional GIC through the use of financial instruments. These contracts include underlying assets which are held in a trust owned by the plan and utilize a benefit-responsive wrapper contract issued by a financially responsible third party that provides that participants can, and must, execute plan transactions at contract value.
     The fair value of the traditional GICs approximates contract value at December 31, 2005 and 2004. The fair value of the synthetic GICs totaled $122,772,109 and $110,805,813 at December 31, 2005 and 2004, respectively. The contract value of the synthetic GICs totaled $125,746,070 and $110,062,414 at December 31, 2005 and 2004, respectively.

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5. INVESTMENTS AND UNITS OF PARTICIPATION
     In accordance with the provisions of the Plan, the Trustee maintains separate units of participation in the Plan and related net asset value per unit for the Fixed Income Fund, Intermediate Bond Fund, Conservative, Moderate and Aggressive LifeStyle Funds, Index Fund, Large Cap Value Fund, Large Cap Growth Fund, Mid Cap Core Fund, Small Cap Core Fund, International Fund, and the Pinnacle West Stock Fund. The number of units and the related value of the Plan’s net assets available for benefits as of December 31, 2005 and 2004 are as follows:
                 
2005   Number of Units     Value  
Fixed Income Fund
    10,445,275     $ 144,900,495 *
Intermediate Bond Fund
    1,218,664       12,667,606  
Conservative LifeStyle Fund
    668,974       10,367,037  
Moderate LifeStyle Fund
    1,322,385       24,449,871  
Aggressive LifeStyle Fund
    1,348,358       28,300,240  
Index Fund
    3,177,724       124,744,917 *
Large Cap Value Fund
    1,059,418       27,390,087  
Large Cap Growth Fund
    2,678,299       46,666,778 *
Mid Cap Core Fund
    566,995       16,545,042  
Small Cap Core Fund
    2,768,809       71,594,617 *
International Fund
    1,091,894       45,075,464 *
Pinnacle West Stock Fund
    3,486,639       144,529,966 *
Participant Loans
            21,349,736  
 
             
Total
          $ 718,581,856  
 
             
                 
2004   Number of Units     Value  
Fixed Income Fund
    9,885,289     $ 131,072,218 *
Intermediate Bond Fund
    940,244       10,013,303  
Conservative LifeStyle Fund
    583,404       8,924,311  
Moderate LifeStyle Fund
    1,178,319       21,117,732  
Aggressive LifeStyle Fund
    1,262,651       25,323,196  
Index Fund
    3,446,000       128,940,886 *
Large Cap Value Fund
    813,574       21,608,152  
Large Cap Growth Fund
    2,773,601       46,105,546 *
Mid Cap Core Fund
    462,044       13,401,329  
Small Cap Core Fund
    2,476,731       67,734,716 *
International Fund
    573,167       20,994,641  
Pinnacle West Stock Fund
    3,262,937       146,970,036 *
Participant Loans
            21,901,055  
 
             
Total
          $ 664,107,121  
 
             
 
    *These investments represent 5 percent or more of the Plan’s Net Assets Available for Benefits.

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     The Plan’s investments (including gains and losses on investments purchased and sold, as well as held during the year) appreciated/(depreciated) in value for the year ended December 31, 2005 as follows:
         
Common and Collective Trusts
  $ 5,916,674  
Mutual Funds
    17,514,582  
Pinnacle West Stock Fund
    (10,309,184 )
 
     
Net appreciation in fair value of investments
  $ 13,122,072  
 
     
6. NON-PARTICIPANT DIRECTED INVESTMENTS
     Information about the net assets and the significant components of the changes in net assets relating to the investments that are not directed by Plan participants (“non-participant directed investments”) as of and for the year ended December 31, 2005 is as follows:
         
Pinnacle West Stock Fund Non-Participant Directed Portion of Net Assets, beginning of year
  $ 90,076,264  
Changes in net assets during the year:
       
Net depreciation in fair value of investments
    (2,352,113 )
Employer contributions
    13,494,349  
Benefits paid to participants
    (4,522,340 )
Transfers to participant directed investments
    (7,983,225 )
 
     
Net Change
    (1,363,329 )
 
     
Pinnacle West Stock Fund Non-Participant Directed Portion of Net Assets, end of year
  $ 88,712,935  
 
     
7. EXEMPT RELATED PARTY TRANSACTIONS
     Certain Plan investments include shares of the Wells Fargo Short Term Investments Cl G and Wells Fargo S&P 500 Index Fund Cl G that are managed by the Trustee; therefore, these transactions qualify as exempt party-in-interest transactions. In addition, certain Plan investments consist of Pinnacle West common stock, qualifying these transactions as exempt party-in-interest transactions. At December 31, 2005 and 2004, the Plan held 3,486,639 and 3,262,937 units, respectively, of common stock of Pinnacle West, the sponsoring employer, with a cost basis of $99,481,363 and $87,447,011, respectively. During the year ended December 31, 2005, the Plan recorded dividend income from Pinnacle West common stock of $6,388,971.

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8. SUBSEQUENT EVENTS
     Effective January 1, 2006, participants’ accounts are charged an administrative fee for all withdrawals and distributions.
     Effective April 1, 2006, the Plan was amended so that active participants in the Plan and employees hired on or after April 1, 2006, are 100% vested in their Employer contributions account.
     Effective April 5, 2006, State Street Bank and Trust Company was appointed as investment manager under the Plan to (1) manage the liquidity of the Pinnacle West Stock Fund, and (2) review and direct the Trustee on voting proxies received for shares of Pinnacle West common stock (except for those shares for which the Trustee receives participant directions) and nine mutual funds held in the Plan.

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THE PINNACLE WEST CAPITAL CORPORATION SAVINGS PLAN
FORM 5500, SCHEDULE H: PART IV, LINE 4i SCHEDULE OF ASSETS (HELD AT END OF YEAR)
DECEMBER 31, 2005
                     
Identity of Issuer, Borrower,               Current  
Lessor or Similar Party   Description   Cost   Value  
 
Common and Collective Trusts
                   
 
                   
*Wells Fargo Short Term Investments Cl G
  Short-Term Investments***     * *   $ 6,529,487  
*Wells Fargo S&P 500 Index Fund Cl G
  Index Fund     * *     124,744,917  
 
                   
Total common and collective trusts
                131,274,404  
 
                   
Mutual Funds
                   
Putnam Voyager Fund, C1 A
  Large Cap Growth Fund     * *     46,666,778  
Vanguard Lifestrategy Conservative Growth Fund C1 I
  Conservative LifeStyle Fund     * *     10,367,037  
Vanguard Lifestrategy Moderate Growth Fund C1 I
  Moderate LifeStyle Fund     * *     24,449,871  
Vanguard Lifestrategy Aggressive Growth Fund C1 I
  Aggressive LifeStyle Fund     * *     28,300,240  
Merrill Lynch Value Opportunities Fund
  Small Cap Core Fund     * *     71,594,617  
AIM Mid Cap Core Fund C1 I
  Mid Cap Core Fund     * *     16,545,042  
PIMCO Total Return Fund C1 I
  Intermediate Bond Fund     * *     12,667,606  
T. Rowe Price Equity Income Fund
  Large Cap Value Fund     * *     27,390,087  
American FDS EuroPacific Growth Fund C1 R5
  International Equity Fund     * *     45,075,464  
 
                   
Total mutual funds
                283,056,742  
 
                   
Synthetic Investment Contracts
  Fixed Income Fund                
Bank of America N.A. Wrap maturity date 3/15/16, yield 4.51%
                485,296  
CWL 2005-3 AF4 maturity date 2/25/11
        * *     993,600  
CXHE 2005-B AF4 maturity date 7/25/11
        * *     991,300  
FNW 2002-W12 AF-4 maturity date 1/25/06
        * *     28,555  
FHR 2798 JP maturity date 11/15/12
        * *     1,456,389  
FHR 2828 YA maturity date 1/15/13
        * *     1,917,714  
FHR 2934 MA maturity date 3/15/16
        * *     1,310,224  
GMACC 2004-C3 A3 maturity date 1/10/10
        * *     1,454,190  
Ge Capital Corp 4.625 maturity date 9/15/09
        * *     1,979,960  
GE 4.25% maturity date 1/15/08
        * *     1,976,740  
GCCFC 2004-GG1 A3 maturity date 3/10/09
        * *     982,220  
MER 4.75% maturity date 11/20/09
        * *     1,488,150  
MET 4.25 maturity date 7/30/09
        * *     980,790  
MSC 2004-IQ8 A2 maturity date 7/15/09
        * *     1,683,195  
 
                   
AIG Financial Products Wrap maturity date 4/15/20, yield 4.77%
                375,437  
BACM 2005-2 AAB maturity date 12/10/14
        * *     1,472,205  
BAC 7.40% maturity date 1/15/11
        * *     2,203,040  
CWL 2005 - 10 AF3 maturity date 1/25/10
        * *     1,409,211  
CHAMT 2001-4A maturity date 7/15/06
        * *     2,532,300  
CFAB 2002-4 1A4 maturity date 1/25/07
        * *     947,275  
FGG11751 maturity date 4/15/20
        * *     1,473,465  
FNR 2003-75 NB maturity date 12/25/11
        * *     1,246,060  
FNR 2003-109 CX maturity date 8/25/12
        * *     1,626,552  
FHR 2808 YA maturity date 10/15/12
        * *     1,808,637  
MSDWC 2001-TOP1 A2 maturity date 7/15/09
        * *     519,145  
MSDWC 2001-TOP5 A2 maturity date 2/15/08
        * *     2,509,850  

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THE PINNACLE WEST CAPITAL CORPORATION SAVINGS PLAN
FORM 5500, SCHEDULE H: PART IV, LINE 4i SCHEDULE OF ASSETS (HELD AT END OF YEAR)
DECEMBER 31, 2005
                     
Identity of Issuer, Borrower,               Current
Lessor or Similar Party   Description   Cost   Value
 
UBS A.G. Wrap maturity date 11/15/19, yield 4.18%
                640,254  
FGG11678 maturity date 11/15/19
        * *     892,843  
FN254437 FNMA 7-yr 5% maturity date 7/25/09
        * *     521,688  
FN677680 maturity date 3/25/17
        * *     544,007  
FHR 2611 KC maturity date 6/15/12
        * *     1,142,820  
FNCI 4.5% Pool 683124 maturity date 9/25/17
        * *     1,186,875  
FN695871 maturity date 11/25/17
        * *     661,117  
MSC 2003-IQ5 A1 maturity date 1/15/08
        * *     867,984  
MSDWC 2002-TOP7 A1 maturity date 5/15/11
        * *     586,796  
POPLR 2005-A AF3 maturity date 11/25/11
        * *     975,360  
RAMP 2003-RS10 AI4 maturity date 1/25/07
        * *     1,991,260  
RFMS2 2004-HS1 AI4 maturity date 4/25/09
        * *     1,918,420  
WBCMT 2005-C17 A2 maturity date 3/15/10
        * *     1,482,510  
WBCMT 2004-C10 A2 maturity date 12/15/10
        * *     2,397,850  
WFC 4.2 maturity date 1/15/10
        * *     1,460,295  
 
                   
Monumental Life Insurance Co. Wrap maturity date 4/15/20, yield 4.66%
                383,075  
CWL 2005-12- 1A4 maturity date 9/25/11
        * *     1,277,263  
FGG18056 maturity date 4/15/20
        * *     929,352  
FGB11935 maturity date 8/15/18
        * *     1,527,212  
FNR 2003-67 GN maturity date 11/25/08
        * *     2,445,900  
FHR 2664 GA maturity date 10/15/12
        * *     1,581,492  
JPMCC 2001-CIB3 A2 maturity date 12/15/10
        * *     2,045,060  
LBUBS 2004-C6 A3 maturity date 2/15/11
        * *     1,004,190  
MSC 2003-IQ5 A3 maturity date 7/15/12
        * *     1,964,860  
RAMP 2004-RS6 AI3 maturity date 8/25/06
        * *     497,520  
RAMP 2004-RS6 AI4 maturity date 8/25/08
        * *     1,001,720  
RASC 2002-KS8 A4 maturity date 11/25/06
        * *     1,052,449  
RASC 2002-KS2 A16 maturity date 9/25/10
        * *     955,720  
 
                   
JP Morgan Bank Wrap maturity date 2/16/21, yield 4.49%
                575,368  
CFAB 2002-3 1A4 maturity date 6/25/06
        * *     282,674  
CFAB 2004-1 1A3 maturity date 2/25/07
        * *     1,467,102  
FGG11678 maturity date 11/15/19
        * *     1,339,265  
FGG11850 maturity date 4/15/19
        * *     1,006,216  
FHR 2378 A maturity date 5/15/09
        * *     374,490  
FNMA Pool #254458 5% 8-1-1 maturity date 2/25/17
        * *     1,186,872  
FNR 2003-125AM maturity date 6/25/13
        * *     717,873  
FNR 2003-109 CJ maturity date 8/25/12
        * *     543,393  
FHR 2685 MX maturity date 11/15/12
        * *     2,098,029  
FHR 2713 G maturity date 11/15/12
        * *     1,424,687  
FHR 2901 CA maturity date 12/15/18
        * *     1,302,890  
FHR 3002 YD maturity date 2/15/21
        * *     1,418,481  
FN695896 maturity date 1/25/18
        * *     663,486  
GNR 2002-15 PG maturity date 10/20/15
        * *     137,667  
MSC 2004-HQ3 A2 maturity date 7/13/10
        * *     1,927,580  
RAMP 2003-RS7 AI4 maturity date 8/25/07
        * *     1,993,160  
RAMP 2004-RS10 AI4 maturity date 2/25/09
        * *     789,128  

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THE PINNACLE WEST CAPITAL CORPORATION SAVINGS PLAN
FORM 5500, SCHEDULE H: PART IV, LINE 4i SCHEDULE OF ASSETS (HELD AT END OF YEAR)
DECEMBER 31, 2005
                     
Identity of Issuer, Borrower,               Current  
Lessor or Similar Party   Description   Cost     Value  
 
Rabobank Nederland N.V. Wrap maturity date 5/28/24, yield 4.32%
                724,430  
 
BSCMS 2001-TOP4 A1 maturity date 12/15/10
        * *     1,529,507  
FGB13150 maturity date 10/15/18
        * *     1,494,047  
FN254486 maturity date 3/25/17
        * *     721,623  
FNR 2001-68 QD maturity date 3/25/06
        * *     145,089  
FNR 2003-14 AN maturity date 5/25/24
        * *     1,032,518  
FNR 2003-57 NB maturity date 2/25/18
        * *     1,063,535  
FNR 2005-85 AJ maturity date 12/25/17
        * *     1,881,488  
FHR 2950 AB maturity date 8/15/18
        * *     872,129  
FN768658 maturity date 10/25/18
        * *     729,042  
LBUBS 2002-C7 A-3 maturity date 8/15/12
        * *     1,963,620  
LBUBS 2003-C5 A-3 maturity date 4/15/13
        * *     1,443,195  
MBNAP 2005-2 A4-144A maturity date 4/15/11
        * *     964,050  
MWD 4.00 maturity date 1/15/10
        * *     1,442,895  
MSDWC 2003-TOP9 A1 maturity date 1/13/12
        * *     1,269,128  
POPLR 2005-B AF4 maturity date 1/25/11
        * *     973,270  
 
                   
CDC Wraps maturity date 4/17/17 yield 4.66%
                411,389  
BSCMS 2004-T14 A2 maturity date 3/12/09
        * *     1,953,940  
BSCMS 2002-TOP6 A1 maturity date 1/15/11
        * *     1,995,830  
CWL 2004-7 AF4 maturity date 2/25/09
        * *     1,489,815  
CWL 2005-7 AF4 maturity date 1/25/13
        * *     964,990  
CFAB 2004-2 1A4 maturity date 9/25/08
        * *     1,999,760  
FGE91523 maturity date 4/15/17
        * *     1,773,169  
FNR 2003-112 AB maturity date 6/25/12
        * *     1,018,689  
FHR 2770 QA maturity date 2/15/14
        * *     1,939,091  
GMACC 2003-C3 A3 maturity date 4/10/13
        * *     979,200  
RASC 2002-KS2 AI4 maturity date 3/25/06
        * *     183,766  
RAMP 2004-RS8 AI3 maturity date 10/25/06
        * *     992,800  
RAMP 2004-RS8 AI4 maturity date 5/25/08
        * *     1,295,047  
WBCMT 2005-C20 A2 maturity date 7/15/10
        * *     1,463,265  
 
                 
Total synthetic investment contracts
                125,746,070  
 
                   
Guaranteed Investment Contracts
  Fixed Income Fund                
Canada Life Assurance Company, maturity date 5/25/06, yield 6.17%
        * *     5,242,413  
Hartford Life Assurance Company, maturity date 7/28/06, yield 4.26%
        * *     3,448,494  
New York Life Insurance Company maturity date 3/31/09, yield 3.46%
        * *     2,646,234  
Principal Life Insurance Company maturity date 10/2/06, yield 4.81%
        * *     1,825,070  
 
                 
Total guaranteed investment contracts
                13,162,211  
 
                   
Other Investments
                   
*Pinnacle West Stock Fund
  Pinnacle West Stock Fund   $ 99,481,363        143,992,693  
Participant Loans
  Participant Loans     * *     21,349,736  
 
                 
Total other investments
                165,342,429  
 
                   
 
                 
Total Assets Held for Investment Purposes
              $ 718,581,856  
 
                 
 
*   Party in interest
 
**   Cost information not provided as investments are participant-directed.
 
***   Short-Term Investments represent $5,992,214 from the Fixed Income Fund and $537,273 from the Pinnacle West Stock Fund.

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Exhibits Filed
     
Exhibit No.   Description
 
   
23.1
  Consent of Independent Registered Public Accounting Firm

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SIGNATURES
     Pursuant to the requirements of the Securities Exchange Act of 1934, the Committee has duly caused this annual report to be signed by the undersigned hereunto duly authorized.
             
    THE PINNACLE WEST CAPITAL CORPORATION
         SAVINGS PLAN    
   
(Name of Plan)
   
 
           
Date: June 28, 2006
  By      /s/ Armando B. Flores    
 
           
 
           Armando B. Flores    
 
           Chairman of the Administrative Committee    
 
           and Executive Vice President,    
 
           Corporate Business Services    
 
           Arizona Public Service Company    

19