EXHIBIT 10.8a




                       ARIZONA PUBLIC SERVICE COMPANY

                         SUPPLEMENTAL EXCESS BENEFIT

                               RETIREMENT PLAN




                              TABLE OF CONTENTS




                                                                        Page

ARTICLE ONE - PREAMBLE  . . . . . . . . . . . . . . . . . . . . . . . .  1

ARTICLE TWO - CONSTRUCTION  . . . . . . . . . . . . . . . . . . . . . .  2

ARTICLE THREE - ELIGIBILITY AND PARTICIPATION . . . . . . . . . . . . .  3

ARTICLE FOUR - BENEFITS . . . . . . . . . . . . . . . . . . . . . . . .  3

ARTICLE FIVE - PAYMENT OF BENEFITS  . . . . . . . . . . . . . . . . . .  4

ARTICLE SIX - FUNDING . . . . . . . . . . . . . . . . . . . . . . . . .  5

ARTICLE SEVEN - ADMINISTRATION  . . . . . . . . . . . . . . . . . . . .  5

ARTICLE EIGHT - AMENDMENT AND TERMINATION OF THE PLAN . . . . . . . . .  6

ARTICLE NINE - ASSIGNMENT . . . . . . . . . . . . . . . . . . . . . . .  6

ARTICLE TEN - WITHHOLDING . . . . . . . . . . . . . . . . . . . . . . .  7

ARTICLE ELEVEN - OTHER BENEFIT PLANS OF THE COMPANY   . . . . . . . . .  7

ARTICLE TWELVE - MISCELLANEOUS  . . . . . . . . . . . . . . . . . . . .  7



                       ARIZONA PUBLIC SERVICE COMPANY

                 SUPPLEMENTAL EXCESS BENEFIT RETIREMENT PLAN



                                 ARTICLE ONE

                                  PREAMBLE

          ARIZONA  PUBLIC SERVICE  COMPANY, hereinafter  referred to  as the

"Company",  has  previously  adopted  the  ARIZONA  PUBLIC  SERVICE  COMPANY

EMPLOYEES'  RETIREMENT  PLAN, hereinafter  referred  to  as the  "Retirement

Plan".   Subsequent to adoption of the  Retirement Plan, the Company adopted

THE  SAVINGS  PLAN   FOR  EMPLOYEES  OF  ARIZONA  PUBLIC   SERVICE  COMPANY,

hereinafter referred to as the "Savings Plan."  The Retirement  Plan and the

Savings  Plan are  subject to  the benefit  and contribution  limitations of

Section 415 of  the Internal Revenue  Code, hereinafter  referred to as  the

"Code".   By reason  of the  limitations of  Section 415  of  the Code,  and

pursuant to  the terms  and provisions  of the  Retirement Plan and  Savings

Plan, a Participant's benefits under the Retirement Plan may be reduced from

the benefits otherwise payable  pursuant to the terms and  provisions of the

Retirement  Plan (operative in the  absence of the  benefit and contribution

limitations of Section 415).  The Employee Retirement Income Security Act of

1974,  hereinafter referred  to as  the "Act",  permits establishment  of an

"excess  benefit  plan" for  the purpose  of  paying retirement  benefits to

certain employees in  excess of the benefits permitted to  be paid under the

Retirement  Plan by  reason of Section  415 of  the Code.   Accordingly, the

Company hereby adopts the ARIZONA PUBLIC SERVICE COMPANY SUPPLEMENTAL EXCESS

BENEFIT RETIREMENT  PLAN, hereinafter referred  to as the  "Plan", effective

January 1, 1982.



                                 ARTICLE TWO

                                CONSTRUCTION

          Terms capitalized in  this Plan  shall have the  meaning given  in

Article Two of the Retirement  Plan, governing definitions and construction,

except  where  such terms  are  otherwise  defined in  this  Plan.   If  any

provision of  this  Plan is  determined  for any  reason  to be  invalid  or

unenforceable, the  remaining provisions shall  continue in  full force  and

effect.  All of the provisions of  this Plan shall be construed and enforced

according  to the laws  of the State  of Arizona, and  shall be administered

according to  the laws of  such state, except  as otherwise required  by the

Act, the Code or other applicable  federal law.  It is the intention  of the

Company  that the  Plan,  as adopted  by  the Company,  shall  constitute an

"excess benefit plan",  as defined in Section (3)(36) of  the Act.  Benefits

under this Plan  shall be paid  from the Company's  general assets, and  not

from any trust fund or other segregated fund.  This Plan  shall be construed

in a manner consistent with the Company's intention.

                                ARTICLE THREE

                        ELIGIBILITY AND PARTICIPATION

          The Executive Committee of  the Board of Directors of  the Company

shall designate for participation in this Plan Employees of the Company  who

are Participants in  the Retirement  Plan.  Designation  of participants  in

this Plan may be made individually or by group designation, as determined by

the  Executive Committee.    A  participant  in  this  Plan  shall  commence

participation in this Plan as of the first day of the Plan Year in which his

participation is  determined.  Such  participation shall continue  until the

Executive Committee  informs the participant in writing that he is no longer

eligible for participation in this Plan.



                                ARTICLE FOUR

                                  BENEFITS

          Any  participant  in  this  Plan  who  is  a  Participant  in  the

Retirement Plan and  who receives  a benefit under  the Retirement Plan,  or

such Retirement  Plan  Participant's surviving  spouse or  annuitant in  the

event of  the Retirement Plan  Participant's death, shall  be entitled to  a

monthly benefit payable hereunder  in accordance with this ARTICLE  FOUR and

with  ARTICLE FIVE of  this Plan, equal  to the excess,  if any, of  (a) the

amount of  such participant's or  surviving spouse's or  annuitant's monthly

benefit  under  the Retirement  Plan computed  under  the provisions  of the

Retirement  Plan without  regard to the  limitations of  Section 5.8  of the

Retirement Plan  and Section 415  of the Code,  over (b) the amount  of such

participant's or surviving spouse's  or annuitant's monthly benefit actually

payable  under the  Retirement Plan,  computed under  the provisions  of the

Retirement  Plan  and subject  to Section  5.8  of the  Retirement  Plan and

Section 415 of the Code.

          Benefits  payable under  this  Plan shall  be  payable to  a  Plan

participant or his spouse or other  annuitant in the same manner and subject

to  all the  same options,  conditions, privileges  and restrictions  as are

applicable to  the benefits payable to the Plan participant, spouse or other

annuitant  of  a  Participant under  the  Retirement  Plan,  as though  such

benefits  were  payable as  a  part of  the  benefits being  paid  under the

Retirement  Plan, without, however,  taking into account  the limitations of

Section 5.8 of  the Retirement Plan and Section 415  of the Internal Revenue

Code.  An  election of mode of payment under the  Retirement Plan shall be a

similar election under this Plan.



                                ARTICLE FIVE

                             PAYMENT OF BENEFITS

          Benefits  under  this  Plan  shall  become  payable  when  a  Plan

participant  (or his spouse or  annuitant) begins to  receive payments under

the Retirement Plan, 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

annuitant'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.



                                 ARTICLE SIX

                                   FUNDING

          Benefits  under this Plan shall be payable from the general assets

of the Company,  and shall not  be segregated in a  trust fund or  otherwise

funded in  any manner prior  to the time  of payment.   No Plan  participant

shall  have any  vested  rights hereunder  nor any  right  hereunder to  any

specific assets of the Company.



                                ARTICLE SEVEN

                               ADMINISTRATION

          This Plan  will be administered by the Committee which administers

the Retirement  Plan.   With  respect to  administration of  this Plan,  the

provisions of  Article  Eleven of  the  Retirement Plan,  governing  claims,

Section 10.4 of the Retirement Plan,  governing powers of the Committee, and

Section 12.2  of the  Retirement  Plan, regarding  scope of  responsibility,

shall be fully applicable.

                                ARTICLE EIGHT

                    AMENDMENT AND TERMINATION OF THE PLAN

          This Plan may  be amended in  whole or  in part, prospectively  or

retroactively,  by action of  the Company's Board  of Directors, and  may be

terminated  at  any time  by action  of  the Company's  Board  of Directors;

provided,  however, that no such  amendment or termination  shall reduce any

amount payable hereunder to the extent such amount accrued prior to the date

of amendment or termination.



                                ARTICLE NINE

                                 ASSIGNMENT

          No Plan  participant or  beneficiary of  a Plan  participant shall

have any right  to assign, pledge, hypothecate, anticipate or any way create

a lien on any amounts payable hereunder.  No amounts payable hereunder shall

be subject to assignment  or transfer or  otherwise be alienable, either  by

voluntary or  involuntary  act,  or  by  operation of  law,  or  subject  to

attachment, execution, garnishment, sequestration or other seizure under any

legal, equitable or other process, or be liable in any way for the  debts or

defaults of Plan participants and their beneficiaries.



                                 ARTICLE TEN

                                 WITHHOLDING

          Any  taxes  required   to  be  withheld  from   payments  to  Plan

participants hereunder shall be deducted and withheld by the Company.



                               ARTICLE ELEVEN

                     OTHER BENEFIT PLANS OF THE COMPANY

          Nothing contained in  this Plan shall  prevent a Plan  participant

prior to his death,  or his spouse or other annuitant  after his death, from

receiving, in  addition to any  payments provided  for under this  Plan, any

payments  provided for under the Retirement  Plan or under the Savings Plan,

or which would otherwise be  payable or distributable to him,  his surviving

spouse or  annuitant under any plan  or policy of the  Company or otherwise.

Nothing in this Plan shall be construed as preventing the Company or any  of

its  subsidiaries from establishing  any other or  different plans providing

for current or deferred compensation for employees.



                               ARTICLE TWELVE

                                MISCELLANEOUS

          Nothing contained in this Plan shall be construed as a contract of

employment between  the  Company and  an  employee, or  as  a right  of  any

employee  to  be  continued in  the  employment  of  the  Company, or  as  a

limitation of  the right of the  Company to discharge any  of its employees,

with or without cause.

          All of  the provisions  of  this Plan  shall be  binding upon  all

persons  who shall  be entitled  to any  benefit hereunder, their  heirs and

personal representatives.

          IN WITNESS WHEREOF, ARIZONA PUBLIC SERVICE COMPANY has  signed and

sealed this instrument the 17th day of DECEMBER, 1982.

                              ARIZONA PUBLIC SERVICE
                              COMPANY


                              By      Keith L. Turley
                                --------------------------------------------
                                       Its   Chairman of the Board
                                          ----------------------------------

                                                                   "Company"


Attest:


By      William T. Quinsler
  -----------------------------
   Its     Secretary
      -------------------------


                             FIRST AMENDMENT TO

                     THE ARIZONA PUBLIC SERVICE COMPANY

                 SUPPLEMENTAL EXCESS BENEFIT RETIREMENT PLAN


     ARIZONA  PUBLIC  SERVICE  COMPANY,   hereinafter  referred  to  as  the

"Company,"  has  previously  adopted  the  ARIZONA  PUBLIC  SERVICE  COMPANY

EMPLOYEES'  RETIREMENT  PLAN, hereinafter  referred  to  as the  "Retirement

Plan."  Subsequent to adoption of  the Retirement Plan, the Company  adopted

THE  SAVINGS   PLAN  FOR  EMPLOYEES  OF  ARIZONA   PUBLIC  SERVICE  COMPANY,

hereinafter  referred  to as  the "Savings  Plan."   The  Company previously

adopted  the  ARIZONA PUBLIC  SERVICE  COMPANY  SUPPLEMENTAL EXCESS  BENEFIT

RETIREMENT PLAN, hereinafter referred to as the "Plan," effective January 1,

1982.  By  this First Amendment,  the Company intends  to amend the Plan  to

include bonuses in pensionable compensation under the Plan.

     1.   This First Amendment  to the  Plan shall be  effective January  1,

1986.  Any provision of the Plan  not amended by this First Amendment to the

Plan shall be considered to remain in full force and effect.

     2.   This First Amendment shall affect the benefits under this Plan for

employees becoming entitled to benefits under this Plan on and after January

1, 1986.   The benefits  of any employees  for whom benefits  have commenced

under this  Plan prior to such  date shall be determined  in accordance with

the terms and provisions of the Plan in effect before this First Amendment.

     3.   Article  Four of the  plan is hereby  amended and  restated in its

entirety to provide as follows:

                                "ARTICLE FOUR

                                  BENEFITS



     Any participant  in this Plan  who is  a participant in  the Retirement

Plan  and  who  receives  a  benefit  under  the  Retirement  Plan, or  such

Retirement  Plan Participant's surviving spouse or annuitant in the event of

the  Retirement Plan  Participant's death,  shall be  entitled to  a monthly

benefit  payable hereunder  in accordance  with this  ARTICLE FOUR  and with

ARTICLE FIVE of this Plan, equal to the excess, if any, of (a) the amount of

such  Participant's or  surviving  spouse's or  annuitant's monthly  benefit

under  the  Retirement  Plan  (1)  computed  under  the  provisions  of  the

Retirement Plan without regard to the limitations of Section 415 of the Code

and the corresponding  provisions of the Retirement  Plan (as of January  1,

1986, set forth in  Section 5.10 of the Retirement Plan) and (2) computed as

though  bonuses and  incentive payments  payable to  salaried Employees  are

taken  into account under the Retirement Plan in determining Average Monthly

Compensation and  Compensation and  are not  excluded from consideration  in

such determination, over (b)  the amount of such Participant's  or surviving

spouse's  or   annuitant's  monthly  benefit  actually   payable  under  the

Retirement  Plan, computed under the  provisions of the  Retirement Plan and

subject to Section 415 of the Code and Section 5.10 of the Retirement Plan.

     Benefits payable under this Plan shall be payable to a Plan participant

or his spouse or other  annuitant in the same manner and subject  to all the

same options, conditions,  privileges and restrictions as  are applicable to

the benefits payable to the Plan participant, spouse or other annuitant of a

Participant  under the Retirement Plan, as though such benefits were payable

as  a part of  the benefits being  paid under the  Retirement Plan; provided

that such payment shall  be separate from payment under  the Retirement Plan

and may be  paid on  a different  day of  the month  than the  day on  which

Retirement Plan benefit payments are  made.  An election of mode  of payment

under the Retirement Plan shall be a similar election under this Plan."

     4.   Except as  amended by  this  First Amendment,  the Company  hereby

ratifies the Plan in its entirety.

     IN  WITNESS WHEREOF,  ARIZONA  PUBLIC SERVICE  COMPANY  has signed  and

sealed this instrument the 20th day of September, 1986.

                              ARIZONA PUBLIC SERVICE COMPANY



                              By   Keith L. Turley
                                -------------------------------

                              Its  Chairman & CEO
                                 ------------------------------
                                                  "Company"


ATTEST:


By     Faye Widenmann
  -------------------------------

   Its    Secretary
      ---------------------------


                             SECOND AMENDMENT TO
                     THE ARIZONA PUBLIC SERVICE COMPANY
                 SUPPLEMENTAL EXCESS BENEFIT RETIREMENT PLAN


     Effective  January  1,  1982,   ARIZONA  PUBLIC  SERVICE  COMPANY  (the

"Company") adopted  the ARIZONA  PUBLIC SERVICE COMPANY  SUPPLEMENTAL EXCESS

BENEFIT RETIREMENT  PLAN (the "Plan").   The Plan was thereafter  amended on

September 30,  1986.  By this  instrument, the Company intends  to amend the

Plan  to  provide  eligible  employees with  the  benefits  attributable  to

compensation in excess of  $200,000.00, which may not be taken  into account

for purposes of the qualified pension and profit sharing plans maintained by

the Company as a result of recent amendments to the Internal Revenue Code of

1986, as amended.

     1.   This amendment shall amend only those provisions set forth herein,

and  those provisions  not amended  hereby shall  remain in  full force  and

effect.

     2.   Article  Four of  the Plan is  hereby amended and  restated in its

entirety to provide as follows:



                                ARTICLE FOUR

                                  BENEFITS

          Subject to ARTICLE SIX, any participant in the Plan who is  a
     Participant  in the  Retirement Plan  and who  receives a  benefit
     under the Retirement Plan,  or such participant's surviving spouse
     or annuitant in  the event  of the participant's  death, shall  be
     entitled to a monthly benefit payable hereunder in accordance with
     this ARTICLE  FOUR and with ARTICLE FIVE of the Plan, equal to the
     excess,  if  any,  of (a)  the  amount  of  such participant's  or
     surviving  spouse's  or  annuitant's  monthly  benefit  under  the
     Retirement  Plan   computed  (i)  under  the   provisions  of  the
     Retirement Plan without regard to that plan's exclusion of bonuses
     or  incentive  payments  payable  to the  participant  or  to  the
     limitations on the amount of "Compensation" that may be taken into
     account under  the Retirement Plan under Section 401(a)(17) of the
     Code and without regard  to the provisions of  Section 5.9 of  the
     Retirement Plan and  Section 415 of the Code, over  (b) the amount
     of such participant's or surviving spouse's or annuitant's monthly
     benefit actually payable under  the Retirement Plan, as determined
     under  the  provisions  of  the  Retirement  Plan,  including  the
     exclusion  of  bonuses  and  incentive  payments  payable  to  the
     participant and  the limitations  on the amount  of "Compensation"
     that may be  taken into  account under the  Retirement Plan  under
     Code Section 401(a)(17) and  the provisions of Section 5.9  of the
     Retirement Plan and Section 415 of the Code.

          Benefits  payable under the Plan  shall be payable  to a Plan
     participant  or his spouse or  other annuitant in  the same manner
     and  subject to all  the same options,  conditions, privileges and
     restrictions as are applicable to the benefits payable to the Plan
     participant, spouse or other annuitant of a Participant  under the
     Retirement Plan, as though such benefits were payable as a part of
     the  benefits  being  paid  under the  Retirement  Plan,  without,
     however, taking  into account  the Retirement Plan's  exclusion of
     bonuses  and incentive  payments payable  to the  participant, the
     limitation on the  "Compensation" that may  be taken into  account
     under the  Retirement Plan under  Code Section 401(a)(17)  and the
     provisions of Section 5.9  of the Retirement Plan and  Section 415
     of the Code.  An election of mode of payment  under the Retirement
     Plan shall constitute  an election  of a similar  mode of  payment
     under this Plan.

     3.   This Amendment shall be effective as of January 1, 1989.

     Except  as  amended hereby,  the Company  hereby  ratifies the  Plan as

adopted and thereafter amended.

     Dated:  July 24, 1990.

                         ARIZONA PUBLIC SERVICE COMPANY



                         By   Leslie N. Brockhurst
                            --------------------------------------
                            Its   VP - Human Resources
                                ----------------------------------
                                                        "Company"


                             THIRD AMENDMENT TO
                     THE ARIZONA PUBLIC SERVICE COMPANY
                 SUPPLEMENTAL EXCESS BENEFIT RETIREMENT PLAN


     Effective  January  1,  1982,   ARIZONA  PUBLIC  SERVICE  COMPANY  (the

"Company") adopted  the ARIZONA  PUBLIC SERVICE COMPANY  SUPPLEMENTAL EXCESS

BENEFIT RETIREMENT  PLAN (the "Plan").   The Plan was thereafter  amended on

September  30, 1986  and July  24, 1990.   By  this instrument,  the Company

intends  to amend  the  Plan to  include  deferred compensation  as  pension

earnings  for purposes  of calculating the  participant's benefit  under the

Plan  and to  clarify the  inclusion  of bonuses  and incentive  payments as

pension earnings.

     1.   This Amendment shall amend only those provisions set forth herein,

and those  provisions not  amended hereby  shall  remain in  full force  and

effect.

     2.   Article Four  of the Plan  is hereby amended  and restated  in its

entirety to provide as follows:

                                ARTICLE FOUR
                                  BENEFITS

          Subject  to ARTICLE SIX, any participant in the Plan who is a
     participant  in the  Retirement Plan  and who  receives a  benefit
     under the Retirement Plan,  or such participant's surviving spouse
     or annuitant in  the event  of the participant's  death, shall  be
     entitled to a monthly benefit payable hereunder in accordance with
     this ARTICLE FOUR and with ARTICLE FIVE of the Plan,  equal to the
     excess,  if  any,  of (a)  the  amount  of  such participant's  or
     surviving  spouse's  or  annuitant's  monthly  benefit  under  the
     Retirement Plan  computed under  the provisions of  the Retirement
     Plan but (i) including  "Compensation" deferred by the participant
     under the  Company's deferred  compensation plan; (ii)  subject to
     the limitations set forth  below, including as "Compensation" cash
     payments made  to the participant  pursuant to bonus  or incentive
     plans  maintained  by the  Company  for  employees generally;  and
     (iii) including "Compensation" in excess  of the amount allowed to
     be taken into  account under  Section 401(a)(17) of  the Code  and
     (iv) without  regard  to  the  provisions of  Section  5.9  of the
     Retirement Plan and Section 415  of the Code, over (b)  the amount
     of such participant's or surviving spouse's or annuitant's monthly
     benefit actually payable under  the Retirement Plan, as determined
     under  the  provisions  of  the  Retirement  Plan,  including  the
     exclusion   of  the   participant's  deferred   compensation,  the
     exclusion  of   bonus  and  incentive  payments   payable  to  the
     participant, the  limitation on the amount  of "Compensation" that
     may be taken  into account  under the Retirement  Plan under  Code
     Section 401(a)(17)  and  the  provisions  of Section  5.9  of  the
     Retirement Plan and Section 415 of the Code.  For  purposes of the
     foregoing  determination, non-cash  bonus  or incentive  payments,
     bonus  or incentive  payments which  are not  "year-end" bonus  or
     incentive  payments,  and  bonuses  or  incentive  payments  under
     individual agreements between the  Company and a participant shall
     be  disregarded.  In addition,  cash payments made  under bonus or
     incentive plans maintained by  the Company for employees generally
     shall be disregarded to  the extent that such payments  exceed the
     maximum amount that the Human Resources Committee of the Board, as
     successor hereunder to the Executive Committee, determines, in its
     discretion, from time to time, may be taken into account under the
     Plan  as  "Compensation."    The  Human  Resources  Committee  may
     differentiate among  various groups  of employees  in establishing
     the maximum bonus  or incentive  payments that may  be taken  into
     account under the Plan.

          Benefits  payable under the Plan  shall be payable  to a Plan
     participant  or his spouse or  other annuitant in  the same manner
     and subject to  all the same  options, conditions, privileges  and
     restrictions as are applicable to the benefits payable to the Plan
     participant, spouse or other annuitant of a  Participant under the
     Retirement Plan, as though such benefits were payable as a part of
     the benefits being paid under the Retirement Plan.  An election of
     mode  of payment  under the  Retirement Plan  shall constitute  an
     election of a similar mode of payment under this Plan.

     3.   ARTICLE SEVEN is hereby amended in its entirety

to read as follows:

                                ARTICLE SEVEN
                               ADMINISTRATION

          The Plan will be administered by the Administrative Committee
     that   administers  the   Retirement  Plan.     With   respect  to
     administration of the  Plan, except as otherwise provided  in this
     ARTICLE SEVEN, the  provisions of Article Eleven of the Retirement
     Plan  governing  claims,  Section  10.4  of  the  Retirement  Plan
     governing powers of the Administrative Committee, and Section 12.2
     of the Retirement Plan regarding scope of responsibility, shall be
     fully applicable.  Notwithstanding any  provision to  the contrary
     herein,  the Human  Resources Committee  shall have  the sole  and
     absolute  discretion to  determine  whether a  bonus or  incentive
     payment made  to  a  participant  constitutes  "Compensation"  for
     purposes of ARTICLE FOUR of the Plan.

     4.   This Amendment shall be effective as of January 1, 1992.

     Except  as  amended hereby,  the Company  hereby  ratifies the  Plan as

adopted and thereafter amended.

     DATED:  February 13, 1992.


                    ARIZONA PUBLIC SERVICE COMPANY



                    By:  J.B. Norberg
                       --------------------------------------
                         Its  Executive Vice President and
                            ---------------------------------
                              Chief Financial Officer
                            ---------------------------------