Document:

Exhibit 10.1a

Under the 2002 Management Variable Incentive Plan, the Chief Executive Officer,
with the approval of the Human Resources Committee of the Pinnacle West Board of
Directors, annually designates employees to participate in the program,
establishes their participation level, and establishes certain financial and
operational goals which must be satisfied in order for variable pay awards to be
made. The impact, if any, of each employee's performance on his or her variable
pay award is determined by his or her officer. Subject to final approval by the
Human Resources Committee of the Pinnacle West Board of Directors, the Chief
Executive Officer also determines at year-end the degree to which those goals
have been satisfied and the amount of variable pay to be awarded to
participating employees, if any.Exhibit 10.2a

Under the 2002 Senior Management Variable Incentive Plan, the Chief Executive
Officer, with the approval of the Human Resources Committee of the Pinnacle West
Board of Directors, annually designates employees to participate in the program,
establishes their participation level, and establishes certain financial and
operational goals which must be satisfied in order for variable pay awards to be
made. The impact, if any, of each employee's performance on his or her variable
pay award is determined by his or her officer. Subject to final approval by the
Human Resources Committee of the Pinnacle West Board of Directors, the Chief
Executive Officer also determines at year-end the degree to which those goals
have been satisfied and the amount of variable pay to be awarded to
participating employees, if any.Exhibit 10.3a

Under the 2002 Officers Variable Incentive Plan, the Chief Executive Officer,
with the approval of the Human Resources Committee of the Pinnacle West Board of
Directors, annually designates the officers who will participate in the program,
establishes their participation level, and establishes certain financial and
operational goals which must be satisfied in order for variable pay awards to be
made. The impact, if any, of each officer's performance on his or her variable
pay award is determined by the Chief Executive Officer, with the approval of the
Human Resources Committee. Subject to final approval by the Human Resources
Committee of the Pinnacle West Board of Directors, the Chief Executive Officer
also determines at year-end the degree to which those goals have been satisfied
and the amount of variable pay to be awarded to participating officers, if any.Exhibit 10.4(a)

                             FIRST AMENDMENT TO THE
                        PINNACLE WEST CAPITAL CORPORATION
                   SUPPLEMENTAL EXCESS BENEFIT RETIREMENT PLAN

     Effective January 1, 1987, PINNACLE WEST CAPITAL CORPORATION (the
"Company") adopted the PINNACLE WEST CAPITAL CORPORATION SUPPLEMENTAL EXCESS
BENEFIT RETIREMENT PLAN (the "Plan"). The Plan was thereafter amended several
times. The Plan was amended and restated in its entirety effective January 1,
2000, to merge the Arizona Public Service Company Supplemental Excess Benefit
Retirement Plan sponsored by Arizona Public Service Company into the Plan.

     By this amendment, the Company intends to increase the monthly survivor
benefit for the surviving spouse of certain participants who die while employed
by the Company or a participating affiliate and to provide for payment of such
benefits to commence upon the participant's death.

     1. This Amendment shall amend only the provisions of the Plan as set forth
herein, and those provisions not expressly amended hereby shall be considered in
full force and effect.

     2. The third paragraph of Section 5(a) is hereby amended to read as
follows:

          If a participant entitled to benefits under Section 4(a) dies while
     still employed by the Company or an Affiliate, the participant's spouse
     shall be entitled to a survivor annuity equal to one hundred percent (100%)
     of the monthly benefit that the participant would have received had he
     terminated employment on the day before he died, survived to the age on
     which he would first be eligible to commence benefits under this Section
     5(a), elected to retire and commence benefits under the Plan at that time
     and then died. Benefits payable to the surviving spouse shall commence as
     of the first day of the month following the participant's date of death.
<PAGE>
     The surviving spouse's monthly benefit shall be reduced by the monthly
     benefit that the spouse receives under Section 5.7 or Section 5.8 of the
     Retirement Plan, whichever is applicable. Benefits payable to a terminated
     participant entitled to benefits under Section 4(a) who dies prior to
     commencing benefits shall be paid in the form of a survivor annuity equal
     to fifty percent (50%) of the monthly benefit which the participant would
     have received had he survived to the earliest date under this Section 5(a)
     upon which he could have commenced benefits. Such benefits shall commence
     on the earliest date under this Section 5(a) upon which the participant
     could have commenced benefits had he survived. The surviving spouse's
     monthly benefit shall be reduced by the monthly benefit that the spouse
     receives under Section 5.7 or Section 5.8 of the Retirement Plan, whichever
     is applicable.

     3. This Amendment shall be effective as of January 1, 2001.

     Except as amended hereby, the Company ratifies and confirms the Plan as
amended and restated effective January 1, 2000.

                                PINNACLE WEST CAPITAL CORPORATION

                                By Armando Flores
                                   -------------------------------
                                   Its Executive Vice President
                                       Corporate Business ServicesExhibit 10.5(a)

                               SECOND AMENDMENT TO
                      THE PINNACLE WEST CAPITAL CORPORATION
                   SUPPLEMENTAL EXCESS BENEFIT RETIREMENT PLAN

     Effective January 1, 1987, PINNACLE WEST CAPITAL CORPORATION adopted the
PINNACLE WEST CAPITAL CORPORATION SUPPLEMENTAL EXCESS BENEFIT RETIREMENT PLAN
(the "Plan"). The Plan was amended and restated several times thereafter. Most
recently the Plan was amended and restated effective January 1, 2000 to merge
the ARIZONA PUBLIC SERVICE COMPANY SUPPLEMENTAL EXCESS BENEFIT RETIREMENT PLAN
into the Plan and to make certain other technical changes.

     By this instrument the Company intends to amend the Plan to clarify payment
options available under the Plan.

     1. This Amendment shall amend only those Sections set forth herein and
those Sections not amended hereby shall remain in full force and effect.

     2. ARTICLE FIVE, Subsection (b) is hereby amended in its entirety to read
as follows:

          (b) Benefits payable to a participant under Section 4(b) shall become
     payable when a participant (or his spouse or beneficiary) begins to receive
     payments under the Retirement Plan, and shall be subject to the same
     adjustments and shall be payable by the Company in the same manner and at
     the same time as the Plan participant's (or his spouse's or beneficiary's)
     benefits under the Retirement Plan are paid, as though such benefits were
     otherwise payable as a part of the benefits being paid under the Retirement
     Plan, subject to ARTICLE SIX. With the exception of Section 6.6 of the
     Retirement Plan, an election or mode of payment under the Retirement Plan
     shall constitute an election of a similar mode of payment under this Plan.
     Section 6.6 of the Retirement Plan shall not be a form of payment available
     under this Plan.
<PAGE>
     3. The following Subsection (c) is hereby added to the end of ARTICLE FIVE:

          (c) If the present value of a Participant's vested benefits under the
     Plan is Five Thousand Dollars ($5,000.00), or less, at any time after the
     Participant's retirement or termination of employment and before his
     Annuity Starting Date, the Participant's vested benefits shall be
     distributed in a single lump sum. The benefits of a non-vested Participant
     shall automatically be deemed to be cashed out pursuant to this ARTICLE
     FIVE (c) upon such Participant's termination of employment. If the present
     value of a Participant's vested benefits is more than Five Thousand Dollars
     ($5,000.00) but not more than Ten Thousand Dollars ($10,000.00) at any time
     after the Participant's retirement or termination of employment and before
     his Annuity Starting Date, the Participant's vested benefits shall be
     distributed in a single lump sum if such distribution is requested in
     writing by the Participant and his Spouse, if married, in accordance with
     the consent and waiver provisions of Section 6.2 of the Retirement Plan.

          If the present value of the Spouse's Benefit or Vested Survivor's
     Benefit under the Plan, as applicable, is Five Thousand Dollars
     ($5,000.00), or less, at any time after the Participant's death and before
     the commencement of such benefit, the benefit shall be distributed in a
     single lump sum. If the present value of the Spouse's Benefit or Vested
     Survivor's Benefit is more than Five Thousand Dollars ($5,000.00) but not
     more than Ten Thousand Dollars ($10,000.00) at any time after the
     Participant's death and before the commencement of such benefit, the
     benefit shall be distributed in a single lump sum if such distribution is
     requested in writing by the Participant's surviving Spouse.

          For purposes of calculating the present value of a Participant's
     vested benefits, the Spouse's Benefit or the Vested Survivor's Benefit, the
     actuarial assumptions incorporated by reference in Section 2.1(c) of the
<PAGE>
     Retirement Plan shall be used, but in no event shall such present value be
     less than the present value calculated using the "applicable interest rate"
     and "applicable mortality table," as defined in Section 5.16 of the
     Retirement Plan.

     4. Except as otherwise expressly provided herein, this Amendment shall be
effective January 1, 2002.

     Except as amended hereby, the Company ratifies and confirms the Plan as
amended and restated effective January 1, 2000, and as thereafter amended.

                                Dated: December 19, 2001

                                PINNACLE WEST CAPITAL CORPORATION

                                By Armando B. Flores
                                   Its Executive Vice President,
                                       Corporate Business Services

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