BEFORE THE ARIZONA CORPORATION COMMISSION


                                              DOCKET NO. E-01345A-98-0473 ET AL.
                                                    DECISION NO. _______________

CARL J. KUNASEK
         CHAIRMAN
JIM IRVIN
         COMMISSIONER
WILLIAM A. MUNDELL
         COMMISSIONER



                                                               
IN THE MATTER OF THE APPLICATION OF ARIZONA PUBLIC SERVICE        DOCKET NO. E-01345A-98-0473
COMPANY FOR APPROVAL OF ITS PLAN FOR STRANDED COST RECOVERY.
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IN THE MATTER OF THE FILING OF ARIZONA PUBLIC SERVICE COMPANY     DOCKET NO. E-01345A-97-0773
OF UNBUNDLED TARIFFS PURSUANT TO A.A.C. R14-2-1601 ET SEQ.

- --------------------------------------------------------------

IN THE MATTER OF COMPETITION IN THE PROVISION OF ELECTRIC         DOCKET NO. RE-00000C-94-0165
SERVICES THROUGHOUT THE STATE OF ARIZONA.
                                                                  DECISION NO. 61973
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                                                                  OPINION AND ORDER


DATES OF HEARING:     July 12, 1999 (pre-hearing  conference),  July 14, 15, 16,
                      19, 20, and 21, 1999

PLACE OF HEARING:     Phoenix, Arizona

PRESIDING OFFICER:    Jerry L. Rudibaugh

IN ATTENDANCE:        Carl J. Kunasek, Chairman
                      Jim Irvin, Commissioner

APPEARANCES:          Mr. Steven M. Wheeler, Mr. Thomas Mumaw and Mr. Jeffrey B.
                      Guldner, SNELL & WILMER, LLP, on behalf of Arizona Public
                      Service Company;

                      Mr. C. Webb Crockett and Mr. Jay Shapiro, FENNEMORE CRAIG,
                      on behalf of Cyprus Climax Metals, Co., ASARCO, Inc., and
                      Arizonans for Electric Choice & Competition;

                      Mr. Scott S. Wakefield, Chief Counsel, and Ms. Karen Nally
                      on behalf of the Residential Utility Consumer Office;

                      Ms. Betty Pruitt on behalf of the Arizona Community Action
                      Association;

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                      Mr. Timothy Hogan on behalf of the Arizona Consumers
                      Council;

                      Mr. Robert S. Lynch on behalf of the Arizona Transmission
                      Dependent Utility Group;

                      Mr. Walter W. Meek on behalf of the Arizona Utility
                      Investors Association;

                      Mr. Douglas C. Nelson, DOUGLAS C. NELSON, P.C., on behalf
                      of Commonwealth Energy Corporation;

                      Mr. Lawrence V. Robertson, Jr., MUNGER & CHADWICK, and Ms.
                      Leslie Lawner, Director Government Affairs on behalf of
                      Enron Corporation, and Mr. Robertson on behalf of PG&E
                      Energy Services;

                      Mr. Lex J. Smith, BROWN & BAIN, P.A., on behalf of
                      Illinova Energy Partners and Sempra Energy Trading;

                      Mr. Randall H. Werner, ROSHKA, HEYMAN & DeWULF, P.L.C., on
                      behalf of NEV Southwest;

                      Mr. Norman Furuta on behalf of the Department of the Navy;

                      Mr. Bradley S. Carroll on behalf of Tucson Electric Power
                      Company; and

                      Mr. Christopher C. Kempley, Assistant Chief Counsel and
                      Ms. Janet F. Wagner, Staff Attorney, Legal Division on
                      behalf of the Utilities Division of the Arizona
                      Corporation Commission.

BY THE COMMISSION:

     On December 26, 1996, the Arizona Corporation Commission  ("Commission") in
Decision No. 59943 enacted  A.A.C.  R14-2-1601  through  R14-2-1616  ("Rules" or
"Electric Competition Rules").

     On June 22, 1998, the Commission  issued  Decision No. 60977,  the Stranded
Cost Order which required each Affected Utility to file a plan for stranded cost
recovery.

     On August 10, 1998,  the  Commission  issued  Decision No. 61071 which made
modifications to the Rules on an emergency basis.

     On August 21,  1998,  Arizona  Public  Service  Company  ("APS")  filed its
Stranded Costs plan.

     On November 5, 1998, APS filed a Settlement  Proposal that had been entered
into  with  the  Commission's   Utilities   Division  Staff  ("Staff  Settlement
Proposal").  Our November 24, 1998 Procedural  Order set the matter for hearing.
On November 25, 1998, the Commission issued

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Decision  No.  61259 which  established  an  expedited  procedural  schedule for
evidentiary hearings on the Staff Settlement Proposal.

     On November 30, 1998, the Arizona Attorney General's Office, in association
with numerous  other parties,  filed a Verified  Petition for Special Action and
Writ of  Mandamus  with  the  Arizona  Supreme  Court  ("Court")  regarding  the
Commission's  November  25, 1998  Procedural  Order,  Decision  No.  61259.  The
Attorney  General sought a Stay of the  Commission's  consideration of the Staff
Settlement Proposal with APS and Tucson Electric Power Company ("TEP").

     On December 1, 1998,  Vice Chief Justice  Charles J. Jones granted a Motion
for Immediate Stay of the Procedural  Order. On December 9, 1998, the Commission
Staff filed a notice with the Supreme Court that the Staff  Settlement  Proposal
had been withdrawn from Commission consideration.

     On April 27, 1999, the Commission issued Decision No. 61677, which modified
Decision No. 60977.  On May 17, 1999,  APS filed with the Commission a Notice of
Filing,  Application  for  Approval of  Settlement  Agreement  ("Settlement"  or
"Agreement") 1 and Request for Procedural Order.

     Our May 25, 1999 Procedural Order set the matter for hearing  commencing on
July 14, 1999.

     This matter came before a duly authorized Hearing Officer of the Commission
at its offices in Phoenix,  Arizona.  APS,  Cyprus Climax Metals,  Co.,  ASARCO,
Inc., Arizonans for Electric Choice & Competition ("AECC"),  Residential Utility
Consumer Office ("RUCO"), the Arizona Community Action Association ("ACAA"), the
Arizona Consumers Council, the Arizona Transmission Dependent Utility Group, the
Arizona Utility Investors Association,  Enron Corporation, PG&E Energy Services,
Illinova Energy Partners,  Sempra Energy Trading, NEV Southwest,  the Department
of the Navy,  Tucson  Electric Power Company,  Commonwealth  Energy  Corporation

- ----------
1    The Parties to the  Proposed  Settlement  are as follows:  the  Residential
     Utility Consumer Office, Arizona Public Service Company,  Arizona Community
     Action  Association  and the Arizonans for Electric  Choice and Competition
     which  is  a  coalition  of  companies  and   associations  in  support  of
     competition  that  includes  Cable  Systems   International,   BHP  Copper,
     Motorola,  Chemical Lime, Intel,  Honeywell,  Allied Signal,  Cyprus Climax
     Metals,  Asarco,  Phelps Dodge,  Homebuilders of Central  Arizona,  Arizona
     Mining Industry Gets Our Support, Arizona Food Marketing Alliance,  Arizona
     Association of Industries, Arizona Multi-housing Association,  Arizona Rock
     Products  Association,  Arizona Restaurant  Association,  Arizona Retailers
     Association, Boeing, Arizona School Board Association,  National Federation
     of Independent  Business,  Arizona Hospital  Association,  Lockheed Martin,
     Abbot Labs and Raytheon.

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("Commonwealth") and Staff of the Commission appeared through counsel.  Evidence
was  presented  concerning  the  Settlement  Agreement,  and after a full public
hearing,  this matter was adjourned pending submission of a Recommended  Opinion
and  Order  by  the  Presiding  Officer  to  the  Commission.   In  addition,  a
post-hearing briefing schedule was established with simultaneous briefs filed on
August 5, 1999.

                                   DISCUSSION

INTRODUCTION

     The Settlement  provides for rate  reductions for  residential and business
customers;  sets the amount,  method, and recovery period of stranded costs that
APS can collect in customer charges;  establishes  unbundled rates; and provides
that APS will  separate  its  generating  facilities,  which will operate in the
competitive  market,  from its  distribution  system,  which will continue to be
regulated.

     According  to  APS,  the  Settlement  was the  product  of  months  of hard
negotiations  with  various  customer  groups.  APS opined  that the  Settlement
provides many clear benefits to customers,  potential competitors, as well as to
APS. Some of those benefits as listed by APS are as follows:

*    Allowing  competition to commence in APS' service  territory  months before
     otherwise possible and expanding the initial eligible load by 140 MW;

*    Establishing both Standard Offer and Direct Access rates, and providing for
     annual rate reductions  with a cumulative  total of as much as $475 million
     by 2004;

*    Ensuring stability and certainty for both bundled and unbundled rates;

*    Resolving the issue of APS' stranded costs and regulatory asset recovery in
     a fair and equitable manner;

*    Providing for the divestiture of generation and competitive services by APS
     in a cost-effective manner;

*    Removing the specter of years of litigation  and appeals  involving APS and
     Commission over competition-related issues;

*    Continuing support for a regional ISO and the AISA;

*    Continuing support for low income programs; and

*    Requiring  APS to file an interim  code of  conduct  to  address  affiliate
     relationships.

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     The Settlement was entered into by RUCO and the ACAA  reflecting  Agreement
by residential  customers of APS to the  Settlement's  terms and conditions.  In
addition, the Settlement was executed by the AECC, a coalition of commercial and
industrial customers and trade associations.  AECC opined that since residential
and  non-residential  customers  have  agreed  to the  Settlement,  the  "public
interest" has been served. AECC indicated the Settlement was not perfect but was
the result of "give and take" by each of the  parties.  Accordingly,  AECC urged
the Commission to protect the "public  interest" by approving the Settlement and
not  allow  Energy  Service  Providers  ("ESPs")  to  delay  the  benefits  that
competition has to offer.

LEGAL ISSUES:

     The  Arizona  Consumers  Council  ("Consumers  Council")  opined  that  the
Agreement was not legal  because:  (1) there was no full rate  proceeding2;  (2)
Section  2.8  of  the  Agreement  violates  A.R.S.  Section  40-246,   regarding
Commission  initiated rate  reductions;  and (3) the Agreement  illegally  binds
future Commissions.  According to the Consumers Council, the Commission does not
have evidence to support a finding that the rates  proposed in the Agreement are
just and  reasonable;  that the rate base  proposed is proper;  and asserted the
proposed adjustment clause can not be established outside a general rate case.

     Staff argued that the  Commission  in Decision No.  59601,  dated April 26,
1996, has previously  determined just and reasonable rates for APS which must be
charged until changed in a rate proceeding. According to Staff, this case is not
about changing  existing rates,  but instead  involves the introduction of a new
service - direct access. The direct access rates have been designed to replicate
the revenue  flow from  existing  rates.  Staff opined that the  Commission  has
routinely, and lawfully, approved rates for new services outside of a rate case.
Further,  Staff  asserted that the rates proposed in the Settlement are directly
related to a complete  financial  review.  Staff  indicated  that the  Consumers
Council  has  provided  no  contrary  information  and  should not be allowed to
collaterally attack Decision No. 59601.

     APS argued that no  determination  of fair value rate base  ("FVRB"),  fair
value rate of return

- ----------
2    Although the Consumers  Council  indicated they did not believe a full rate
     proceeding  was  necessary,  it is unclear as to the type of proceeding the
     Consumers Council believed was necessary.

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("FVROR"),  or other financial  analysis is legally necessary to justify current
APS rate  levels,  allow the  introduction  of a new  service,  or to evaluate a
series  of  voluntary  rate  decreases.  In  spite  of  that,  APS  did  provide
information to support a FVRB of  $5,195,675,000  and FVROR of 6.63 percent.  No
other party  presented  evidence in support of a FVRB or FVROR.  Staff supported
APS.

     We concur with Staff and APS. The  Consumers  Council has provided no legal
authority  that a full rate  proceeding  is  necessary  in order to adopt a rate
reduction  or  rates  for  new  services.   Further,  pursuant  to  the  Arizona
Constitution,  the Commission has jurisdiction over ratemaking  matters. We also
find that notice of the  application  and hearing was  provided and that APS has
provided  sufficient  financial  information  to  support a finding  of FVRB and
FVROR.  Lastly,  this Commission can clearly bind future Commissions as a result
of its Decision.  However, as later discussed, we agree there are limitations to
such legal authority.

SHOPPING CREDIT

     One of the most  contentious  issues  in the  hearing  was the level of the
"shopping   credit."  The  "shopping  credit"  is  the  difference  between  the
customer's Standard Offer Rate and the Direct Access Rate available to customers
who take  service from ESPs.  The ESPs  generally  argued that the  Settlement's
"shopping  credits" were not sufficient to allow a new entrant to make a profit.
AECC opined that such an  argument  was nothing  more than a request to increase
ESP's profits.

     Staff opined that the "shopping  credit" was too low and  recommended it be
increased  without  impacting the stranded cost recovery amount of $350 million.
Under  Staff's  proposal,  the  increased  "shopping  credit" would be offset by
reducing the competitive transition charge ("CTCs").  Further, Staff recommended
that any stranded  costs not  collected  could simply be deferred and  collected
after 2004.

     The AECC expert  testified  that the "shopping  credit" under the Agreement
was superior to the "Shopping  Credit" in the Staff Settlement  Proposal as well
as the one  offered  to SRP's  customers.  APS  argued  that  artificially  high
shopping  credits will likely  increase ESP profits  without  lowering  customer
rates and will  encourage  inefficient  firms to enter the market.  Based on the
analysis of the

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40kW to 200 kW customer  group3,  APS showed an average  margin on the "shopping
credit" of over 8 mils per kWh or a 23 percent  markup over cost.  APS  asserted
that the test for a reasonable "shopping credit" "should not be whether ALL ESPs
can profit on all APS customers ALL of the time".

     Based on the  evidence  presented,  the  "shopping  credits"  appear  to be
reasonable to allow ESPs to compete in an efficient manner.  Further,  we do not
find  customer  rates  should  be  increased  simply  to have  higher  "shopping
credits".

METERING AND BILLING CREDITS

     The metering and billing credits  resulting from the Agreement are based on
decremental  costs.  Several of the ESPs and Staff  argued  that  these  credits
should be based upon embedded  costs and not  decremental  costs.  APS responded
that such a result could cause them to lose revenues  since its costs would only
go down by the decremental  amounts.  Staff testified that the Company would not
lose  significant  income  if it used  embedded  costs  since it  would  free up
resources to service new customers.

     We concur.  The proposed  credits for metering,  meter reading and billing4
will result in a direct access customer paying a portion of APS costs as well as
a portion of the ESP's  costs.  We believe  this  would  stymie the  competitive
market for these services.  As a result,  we find the approval of the Settlement
should be  conditioned  upon the use of Staff's  proposed  credits for metering,
meter reading, and billing.

PROPOSED ONE-YEAR ADVANCE NOTICE REQUIREMENT:

     Section 2.3 provides that

          "Customers  greater than 3MW who chose a direct  access  supplier must
          give APS one year's  advance notice before being eligible to RETURN to
          Standard Offer service." [emphasis added]

     Several parties expressed  concerns that the one-year notice requirement to
return to Standard  Offer service would create a deterrent to load  switching by
large industrial, institutional and commercial customers. PG&E proposed that any
increased  cost could be charged  directly to the

- ----------
3    Represents over 80 percent of the general service customers for competitive
     access in phase one.

4    For example, the monthly credits for a direct access residential  customers
     are $1.30,  $0.30,  and $0.30 for  metering,  meter  reading  and  billing,
     respectively.

                                       7                      DECISION NO. 61973

                                              DOCKET NO. E-01345A-98-0473 ET AL.


customer as a condition to its return.

     We agree that APS needs to have some protection from customers  leaving the
system when market prices are low and jumping back on Standard  Offer rates when
market  prices go up. The  suggestion by PG&E that the customer be allowed to go
back to the Standard  Offer if the  customer  pays for  additional  costs it has
caused is a  reasonable  resolution.  Accordingly,  we will  order APS to submit
substitute language on this issue.

SECTION 2.8

     Several of the parties  expressed concern that Section 2.8 of the Agreement
allows APS to seek rate increases under specified conditions.  Additionally,  as
previously  discussed,  the Consumers  Council  opined that Section 2.8 violated
A.R.S.  Section 40-246.  Staff recommended the Commission  condition approval of
the  Agreement  on  Section  2.8 being  amended  to  include  language  that the
Commission  or Staff may  commence  rate  change  proceedings  under  conditions
paralleling  those  provided to the  utility,  including  response to  petitions
submitted under A.R.S. ss. 40-246.

     We agree that Section 2.8 is too  restrictive  on the  Commission's  future
action. Accordingly, we will condition approval of the Agreement on inclusion of
the following language in Section 2.8:

          Neither the  Commission  nor APS shall be  prevented  from  seeking or
          authorizing  a change in  unbundled  or Standard  Offer rates prior to
          July 1, 2004, in the event of (a)  conditions or  circumstances  which
          constitute an emergency, such as an inability to finance on reasonable
          terms,   or  (b)  material   changes  in  APS'  cost  of  service  for
          Commission-regulated services resulting from federal, tribal, state or
          local laws, regulatory  requirements,  judicial decisions,  actions or
          orders. Except for the changes otherwise specifically  contemplated by
          this  Agreement,  unbundled  and  Standard  Offer rates  shall  remain
          unchanged until at least July 1, 2004.

SECTION 7.1

     The Consumers Council opined that there was language in the Agreement which
would  illegally bind future  Commissions.  While Staff disagreed with the legal
opinion of the Consumers  Council,  Staff was concerned with some of the binding
language in the  Agreement  and in  particular  with the  following  language in
Section 7.1:

          7.1. To the extent any  provision of this  Agreement  is  inconsistent
     with any existing or future  Commission  order,  rule or  regulation  or is
     inconsistent with the Electric

                                       8                      DECISION NO. 61973

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     Competition  Rules as now existing or as may be amended in the future,  the
     provisions  of  this  Agreement  shall  control  and  the  approval  of the
     Agreement   by  the   Commission   shall  be   deemed   to   constitute   a
     Commission-approved  variation or exemption to any conflicting provision of
     the Electric Competition Rules.

Staff recommended the Commission not approve Section 7.1.

     We share  Staff's  concerns.  We also  recognize  that the parties  want to
preserve  their benefits to their  Agreement.  We agree with the parties that to
the extent any  provision  of the  Agreement is  inconsistent  with the Electric
Competition  Rules  as  finalized  by the  Commission  in  September  1999,  the
provisions of the  Agreement  shall  control.  We want to make it clear that the
Commission  does  not  intend  to  revisit  the  stranded  cost  portion  of the
Agreement. It is also not the Commission's intent to undermine the benefits that
parties have bargained for. With that said, the Commission  must be able to make
rule  changes/other  future  modifications that become necessary over time. As a
result,  we will direct the parties and Staff to file within 10 days,  a revised
Section 7.1 consistent with the Commission's discussions herein and subsequently
approved by this Commission.

GENERATION AFFILIATE

     Section 4.1 of the Agreement provides the following:

          4.1 The  Commission  will  approve the  formation  of an  affiliate or
     affiliates of APS to acquire at book value the competitive  services assets
     as  currently  required  by the  Electric  Competition  Rules.  In order to
     facilitate  the  separation  of such assets  efficiently  and at the lowest
     possible cost, the Commission shall grant APS a two-year  extension of time
     until December 31, 2002, to accomplish such separation.  A similar two-year
     extension shall be authorized for compliance with A.A.C. R14-2-1606(B).

Related to Section  4.1 is Section  2.6(3)  which  allows APS to defer  costs of
forming the generation affiliate, to be collected beginning July 1, 2004.

     According to NEV  Southwest,  APS indicated  that it intends to establish a
generation  affiliate  under  Pinnacle West,  not under APS.  Further,  that APS
intends to procure  generation for standard  offer  customers from the wholesale
generation   market  as  provided  for  in  the  Electric   Competition   Rules.
Additionally, it was NEV Southwest's understanding that the affiliate generation
company  could bid for the APS  standard  offer  load  under an  affiliate  FERC
tariff, but there would be no automatic privilege outside of the market bid. NEV
Southwest  supports  the   aforementioned   concepts  and  recommended  they  be
explicitly stated in the Agreement.

     We concur with NEV  Southwest.  We shall  order APS to include  language as
requested by

                                       9                      DECISION NO. 61973

                                              DOCKET NO. E-01345A-98-0473 ET AL.


NEV  Southwest.  Power for Standard  Offer  Service will be acquired in a manner
consistent  with the  Commission's  Electric  Competition  Rules.  We  generally
support the request of APS to defer those costs  related to  formation  of a new
generation  affiliate  pursuant  to the  Electric  Competition  Rules.  We  also
recognize the Company is making a business  decision to transfer the  generation
assets to an affiliate instead of an unrelated third party. As a result, we find
the Company's proposed  mitigation of stranded costs(5) in the Settlement should
also apply to the costs of forming the new  generation  affiliate.  Accordingly,
Section 2.6(3) should be modified to reflect that only 67 percent of those costs
to transfer  generation  assets to an affiliate  shall be allowed to be deferred
for future collection.

     Some parties  were  concerned  that  Sections 4.1 and 4.2 provide in effect
that the  Commission  will have  approved  in  advance  any  proposed  financing
arrangements  associated with future transfers of "competitive  services" assets
to an affiliate.  As a result,  there was a  recommendation  that the Commission
retain  the  right to  review  and  approve  or reject  any  proposed  financing
arrangements.  In  addition,  some  parties  expressed  concern that APS has not
definitively  described  the assets it will retain and which it will transfer to
an affiliate.

     We share the concerns that the non-competitive portion of APS not subsidize
the spun-off competitive assets through an unfair financial arrangement. We want
to make it  clear  that the  Commission  will  closely  scrutinize  the  capital
structure of APS at its 2004 rate case and make any necessary  adjustments.  The
Commission  supports  and  authorizes  the  transfer by APS to an  affiliate  or
affiliates of all its generation and competitive  electric service assets as set
forth in the Agreement no later than December 31, 2002. However, we will require
the Company to provide the  Commission  with a specific list of any assets to be
so  transferred,  along with their net book values at the time of  transfer,  at
least  thirty days prior to the actual  transfer.  The  Commission  reserves the
right to verify whether such specific assets are for the provision of generation
and other  competitive  electric  services or whether there are  additional  APS
assets that should be so transferred.

UNBUNDLED RATES

     Several parties expressed concern that the Agreement's unbundled rates fail
to provide the

- ----------
5    Agreement to not recover $183 million out of a claimed $533 million.

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necessary  information to determine  whether a competitor's  price is lower than
the Standard Offer rate. Further,  some of the parties asserted that APS has not
performed a functional  cost-of-service  study and as a result the  Settlement's
"shopping credit" is an artificial division of costs. In response, APS indicated
the Standard Offer rates can not be unbundled on a strict  cost-of-service basis
unless the Standard  Offer rates are  redesigned to equal  cost-of-service.  APS
opined that such a process would result in  significant  rate increases for many
customers.

     AECC asserted that a full rate case would result in additional months/years
of delay with continued drain of resources by all interested entities.

     The ESPs  asserted that the bill format  proposed by APS is misleading  and
too  complex.  In  general,  the ESPs  desired a bill  format  that would  allow
customers to easily compare Standard Offer and Direct Access charges in order to
make an  informed  decision.  As a result,  APS was  directed  to  circulate  an
Informational  Unbundled  Standard  Offer  Bill  ("Bill")  to  the  parties  for
comments.  Subsequent to the hearing,  a Bill was  circulated to the parties for
comments to determine what consensus could be reached on its format. In general,
there  was  little  dispute  with the  format  of the  Bill.  However,  PG&E and
Commonwealth disagreed with the underlying cost allocation methodologies.  Enron
was concerned that the Bill  portrayed the Standard Offer to be more  simplistic
than the Direct Access  portion of the Bill.  Enron  proposed a bill format that
would clearly  identify those services which are available from an ESP. Based on
comments from RUCO and Staff, APS made general revisions to the proposed Bill.

     We find the APS Attachment  AP-1R,  second  revised dated 8/16/99  provides
sufficient  information  in a  concise  manner to  enable  customers  to make an
informed  choice.  (See  Attachment  No. 2 herein).  However,  we find the Enron
breakdown into a Part 1 versus Parts 2 and 3 will further help educate customers
as to choice.  We will direct APS to further revise its Bill to have a Part 1 as
set forth by the Enron  breakdown.  We believe Parts 2 and 3 can be combined for
simplicity.

     We  concur  with  APS  that  it  is  not   necessary   to  file  a  revised
cost-of-service  study at this time. The proposed Standard Offer rates contained
in the Settlement  are based on existing  tariffs  approved by this  Commission.
Further,   we   concur   with  AECC  that  a  full  rate  case  with  a  revised
cost-of-service  study would result in months/years of additional delay. Lastly,
the Standard Offer rates as

                                      11                      DECISION NO. 61973

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proposed in the Settlement are consistent with the Commission's requirement that
no customer  shall receive a rate  increase.  The  following was extracted  from
Decision No. 61677:

          "No  customer or customer  class  shall  receive a rate  increase as a
          result of stranded cost  recovery by an Affected  Utility under any of
          these options."

CODE OF CONDUCT

     There were  concerns  expressed  that APS would be writing  its own Code of
Conduct. Subsequently, APS did provide a copy of its proposed Code of Conduct to
the parties for comment. Several parties also expressed concern that any Code of
Conduct  would not cover the  actions of a single  company  during the  two-year
delay for transferring generation assets.

     Based on the above, we will direct APS to file with the Commission no later
than 30 days of the date of this Decision,  its interim Code of Conduct. We will
direct APS to file its  revised  Code of  Conduct  within 30 days of the date of
this Decision. Such Code of Conduct should also include provisions to govern the
supply of  generation  during the  two-year  period of delay for the transfer of
generation  assets so that APS doesn't give itself an undue  advantage  over the
ESPs.  All parties  shall have 60 days from the date of this Decision to provide
their comments to APS regarding the revised Code of Conduct.  APS shall file its
final  proposed  Code of  Conduct  within 90 days of the date of this  Decision.
Subsequently, within 10 days of filing the Code of Conduct, the Hearing Division
shall establish a procedural schedule to hear the matter.

SECTION 2.6(1)

     Pursuant to the  Agreement,  the  Commission  shall  approve an  adjustment
clause or clauses which among other things would  provide for a purchased  power
adjustor ("PPA") for service after July 1, 2004 for Standard Offer  obligations.
Part of the  justification  for the PPA was the fact that these  costs  would be
outside of the Company's control.

     We concur that a PPA would result in less risk to the Company  resulting in
lower costs for the Standard Offer customers.  As a result,  we will approve the
concept of the PPA as set forth in Section  2.6(1) with the  understanding  that
the Commission can eliminate the PPA once the Commission has provided reasonable
notice to the Company.

                                      12                      DECISION NO. 61973

                                              DOCKET NO. E-01345A-98-0473 ET AL.


REQUESTED WAIVERS

     Section 4.3 of the Agreement would  automatically act to exempt APS and its
affiliates from the application of a wide range of provisions under A.R.S. Title
40. In addition, under Section 4.5 of the Agreement, Commission approval without
modification  will act to grant certain  waivers to APS and its  affiliates of a
variety of the provisions of the Commission's  affiliate  interest rules (A.A.C.
R14-2-801,  ET SEQ.),  and the  rescission  of all or portions of certain  prior
Commission decisions.

     Staff recommended that the Commission reserve its approval of the requested
statute  waivers until such time as their  applicability  can be evaluated on an
industry-wide  basis,  rather than providing a blanket exemption for APS and its
affiliates.  Additionally,  Staff  recommended that the Commission not waive the
applicability  of  A.A.C.  R14-2-804(A),  in order to  preserve  the  regulatory
authority  needed  by the  Commission  to  justify  approving  Exempt  Wholesale
Generator ("EWG") status for APS' generation affiliate.

     We concur with Staff.  Accordingly,  the requested  statutory waivers shall
not be  granted  by  this  Decision.  Those  waivers  will be  considered  in an
industry-wide   proceeding  to  be  scheduled  at  the   Commission's   earliest
convenience. The requested waivers of affiliate interest rules and rescission of
prior  Commission  decisions  shall be granted,  except that the  provisions  of
A.A.C. R14-2-804(A) shall not be waived.

                                ANALYSIS/SUMMARY

     Consistent  with our  determination  in Decision No.  60977,  the following
primary  objectives need to be taken into  consideration in deciding the overall
stranded cost issue:

     A.   Provide the Affected Utilities a reasonable opportunity to collect 100
          percent of their unmitigated stranded costs;

     B.   Provide  incentives  for the  Affected  Utilities  to  maximize  their
          mitigation effort;

     C.   Accelerate  the  collection  of  stranded  costs  into as  short  of a
          transition period as possible consistent with other objectives;

     D.   Minimize  the  stranded  cost  impact on  customers  remaining  on the
          standard offer;

     E.   Don't confuse customers as to the bottom line; and

                                      13                      DECISION NO. 61973

                                              DOCKET NO. E-01345A-98-0473 ET AL.


     F.   Have full generation competition as soon as possible.

The  Commission  also  recognized in Decision No. 60977 that the  aforementioned
objectives were in conflict. Part of that conflict is reflected in the following
language extracted from Decision No. 60977:

               One of the main  concerns  expressed  over  and  over by  various
          consumer  groups was that the small consumers would end up with higher
          costs during the  transition  phase and all the benefits would flow to
          the larger users.  At the time of the hearing,  there had been minimal
          participation   in   California  by   residential   customers  in  the
          competitive  electric market place. It is not the Commission's  intent
          to have  small  consumers  pay  higher  short-term  costs  in order to
          provide  lower costs for the larger  consumers.  Accordingly,  we will
          place  limitations  on stranded  cost  recovery that will minimize the
          impact on the standard offer.

Decision No. 61677 modified Decision No. 60977 and allowed each Affected Utility
to chose from five options.

     With the modifications  contained  herein,  we find the overall  Settlement
satisfies the objectives set forth in Decision Nos. 60977 and 61677.  We believe
the  Settlement  will  result  in an  orderly  process  that will have real rate
reductions6 during the transition period to a competitive generation market. The
Settlement  allows  EVERY APS  CUSTOMER  to have the  immediate  opportunity  to
benefit from the change in market  structure while  maintaining  reliability and
certainty of delivery.  Further, the Settlement in conjunction with the Electric
Rules will provide  every APS customer  with a choice in a reasonable  timeframe
and in an orderly manner. If anything,  the Proposed Settlement favors customers
over  competitors  in the short run since APS has agreed to  reductions in rates
totaling 7.5 percent(7).  This Commission supports competition in the generation
market  because of increased  benefits to customers,  including  lower rates and
greater choice. While some of the potential  competitors have argued that higher
"shopping credits" will result in greater choice, we find that a higher shopping
credit would also mean less of a rate reduction for APS customers.  We find that
the  Settlement  strikes the proper  balance  between  competing  objectives  by
allowing immediate

- ----------
6    There have been  instances in other states where  customers  were told they
     would  receive  rate  decreases  which were then offset by a stranded  cost
     add-on.

7    Pursuant to Decision No. 59601,  dated April 24, 1996, 0.68 percent of that
     decrease would have occurred on July 1, 1999.

                                      14                      DECISION NO. 61973

                                              DOCKET NO. E-01345A-98-0473 ET AL.


rate  reductions  while  maintaining a relatively  short  transition  period for
collection of stranded costs, followed shortly thereafter with a full rate case.
At that point in time the  collection  of stranded  costs will be completed  and
unbundled rates can be modified based upon an updated cost study.

                               * * * * * * * * * *

     Having  considered  the entire record herein and being fully advised in the
premises, the Commission finds, concludes, and orders that:

                                FINDINGS OF FACT

     1. APS is  certificated  to provide  electric  service as a public  service
corporation in the State of Arizona.

     2. Decision No. 59943 enacted R14-2-1601 through -1616, the Retail Electric
Competition Rules.

     3.  Following a hearing on generic issues  related to stranded  costs,  the
Commission issued Decision No. 60977, dated June 22, 1998.

     4. Decision No. 61071 adopted the Emergency Rules on a permanent basis.

     5. On August 21, 1998, APS filed its Stranded Costs plan.

     6. On November 5, 1998, APS filed the Staff Settlement Proposal.

     7. Our November 24, 1998 Procedural Order set the matter for hearing.

     8.  Decision No. 61259  established  an expedited  procedural  schedule for
evidentiary hearings on the Staff Settlement Proposal.

     9. The Court issued a Stay of the  Commission's  consideration of the Staff
Settlement Proposal.

     10.  Staff  withdrew  the  Staff   Settlement   Proposal  from   Commission
consideration.

     11.  On May 17,  1999,  APS  filed  its  Settlement  requesting  Commission
approval.

     12.  Our May 25,  1999  Procedural  Order set the  Settlement  for  hearing
commencing on July 14, 1999.

     13. Decision No. 61311 (January 11, 1999) stayed the  effectiveness  of the
Emergency  Rules and related  Decisions,  and  ordered  the Hearing  Division to
conduct further proceedings in this Docket.

                                      15                      DECISION NO. 61973

                                              DOCKET NO. E-01345A-98-0473 ET AL.


     14. In  Decision  No.  61634  (April  23,  1999),  the  Commission  adopted
modifications  to R14-2-201  through-207,  -210 and 212 and  R14-2-1601  through
- -1617.

     15.  Pursuant to Decision No. 61677,  dated April 27, 1999,  the Commission
modified  Decision No. 60977 whereby each  Affected  Utility could choose one of
the   following    options:    (a)   Net   Revenues   Lost   Methodology;    (b)
Divestiture/Auction   Methodology;  (c)  Financial  Integrity  Methodology;  (d)
Settlement Methodology; and (e) the Alternative Methodology.

     16. APS and other Affected  Utilities filed with the Arizona Superior Court
various appeals of Commission  Orders adopting the Competition Rules and related
Stranded Cost Decisions (the "Outstanding Litigation").

     17. Pursuant to Decision No. 61677,  APS, RUCO, AECC, and ACAA entered into
the  Settlement  to  resolve  numerous  issues,  including  stranded  costs  and
unbundled tariffs.

     18. The  difference  between  market based prices and the cost of regulated
power has been generally referred to as stranded costs.

     19. Any stranded  cost recovery  methodology  must balance the interests of
the Affected Utilities, ratepayers, and the move toward competition.

     20. All current and future  customers of the Affected  Utilities should pay
their fair share of stranded costs.

     21.  Pursuant to the terms of the Settlement  Agreement,  APS has agreed to
the modification of its CC&N in order to implement  competitive retail access in
its Service Territory.

     22. The Settlement Agreement provides for competitive retail access in APS'
Service  Territory,  establishes  rate reductions for all APS customers,  sets a
mechanism for stranded  cost  recovery,  resolves  contentious  litigation,  and
therefore, is in the public interest and should be approved.

     23. The information  and formula for rate  reductions  contained in Exhibit
AP-3 Appended to APS Exhibit No. 2 provides  current  financial  support for the
proposed rates.

     24.  RUCO,  ACAA,  and  AECC   collectively,   represent   residential  and
non-residential customers.

     25.  According to AECC, the Agreement  results in higher  shopping  credits
than in the Staff

                                      16                      DECISION NO. 61973

                                              DOCKET NO. E-01345A-98-0473 ET AL.


Settlement Proposal as well as those offered by SRP.

     26. The  decremental  approach  for  metering  and billing will not provide
sufficient credits for competitors to compete.

     27. Pursuant to the  Settlement,  customers will receive  substantial  rate
reductions without the necessity of a full rate case.

     28. An APS rate case would take a minimum of one year to complete.

     29.  ESPs that have been  certificated  have shown more of an  interest  in
serving larger business customers than residential customers.

     30. It is not in the public or  customers'  interests to forego  guaranteed
Standard Offer rate reductions in order to have a higher shopping credit.

     31. The Settlement will permit competition in a timely and efficient manner
and insure all customers benefit during the transition period.

     32.  Based  on  the  evidence  presented,  the  FVRB  and  FVROR  of APS is
determined to be $5,195,675,000 and 6.63 percent, respectively.

     33. The terms and conditions of the Settlement Agreement as modified herein
are just and reasonable and in the public interest.


                               CONCLUSIONS OF LAW

     1. The  Affected  Utilities  are  public  service  corporations  within the
meaning of the Arizona  Constitution,  Article XV, under A.R.S.  ss.ss.  40-202,
- -203,  -250,  -321,  -322,  -331,  -336, -361, -365, -367, and under the Arizona
Revised Statutes, Title 40, generally.

     2. The Commission has jurisdiction  over the Affected  Utilities and of the
subject matter contained herein.

     3. Notice of the proceeding has been given in the manner prescribed by law.

     4. The Settlement  Agreement as modified  herein is just and reasonable and
in the public interest and should be approved.

     5. APS should be authorized to implement its Stranded Cost Recovery Plan as
set forth in the Settlement Agreement.

     6.  APS' CC&N  should be  modified  in order to permit  competitive  retail
access in APS'

                                      17                      DECISION NO. 61973

                                              DOCKET NO. E-01345A-98-0473 ET AL.


CC&N service territory.

     7. The requested  statutory  waivers  should not be granted at this time. A
proceeding should be commenced to consider statutory waivers on an industry-wide
basis. The other waivers requested by APS in the Settlement should be granted as
modified herein, except that the provisions of A.A.C.  R14-2-804(A) shall not be
waived.

                                      ORDER

         IT IS  THEREFORE  ORDERED  that the  Settlement  Agreement  as modified
herein  is  hereby   approved  and  all  Commission   findings,   approvals  and
authorizations requested therein are hereby granted.

         IT IS FURTHER  ORDERED that Arizona  Public  Service  Company's CC&N is
hereby  modified  to  permit  competitive  retail  access  consistent  with this
Decision and the Competition Rules.

         IT IS FURTHER ORDERED that within 30 days of the date of this Decision,
Arizona  Public  Service  Company  shall  file a proposed  Code of  Conduct  for
Commission approval.

         IT IS FURTHER  ORDERED that Arizona Public Service Company shall file a
revised Settlement Agreement consistent with the modifications herein.

                                      18                      DECISION NO. 61973

                                              DOCKET NO. E-01345A-98-0473 ET AL.


     IT IS FURTHER ORDERED that within ten days of the date the proposed Code of
Conduct is filed,  the Hearing Division shall issue a Procedural Order setting a
procedural schedule for consideration of the Code of Conduct.

     IT  IS  FURTHER   ORDERED  that  this  Decision   shall  become   effective
immediately. BY ORDER OF THE ARIZONA CORPORATION COMMISSION.



Carl J. Kunasek                                               William A. Mundell
- --------------------------------------------------------------------------------
CHAIRMAN                        COMMISSIONER                        COMMISSIONER


                                        IN WITNESS WHEREOF,  I, BRIAN C. McNEIL,
                                        Executive   Secretary   of  the  Arizona
                                        Corporation  Commission,  have  hereunto
                                        set my hand and caused the official seal
                                        of the  Commission  to be affixed at the
                                        Capitol,  in the City of  Phoenix,  this
                                        6th day of October, 1999.

                                        Brian C. McNeil
                                        -------------------------------
                                        BRIAN C. McNEIL
                                        EXECUTIVE SECRETARY

DISSENT _________________
JLR:dap

                                      19                      DECISION NO. 61973

                                              DOCKET NO. E-01345A-98-0473 ET AL.



SERVICE LIST FOR:                   ARIZONA PUBLIC SERVICE COMPANY

DOCKET NOS.:                        E-01345A-98-0473, E-01345A-97-0773 and
                                    RE-00000C-94-0165

Service List for RE-00000C-94-0165

Paul A. Bullis, Chief Counsel
LEGAL DIVISION
1200 W. Washington Street
Phoenix, Arizona 85007

Utilities Division Director
ARIZONA CORPORATION COMMISSION
1200 W. Washington Street
Phoenix, Arizona 85007








                                      20                      DECISION NO. 61973

                                  ATTACHMENT 1
                              SETTLEMENT AGREEMENT

                                  May 14, 1999

      This settlement agreement ("Agreement") is entered into as of May 14,
1999, by Arizona Public Service Company ("APS" or the "Company") and the various
signatories to this Agreement (collectively, the "Parties") for the purpose of
establishing terms and conditions for the introduction of competition in
generation and other competitive services that are just, reasonable and in the
public interest.

                                  INTRODUCTION

      In Decision No. 59943, dated December 26, 1996, the Arizona Corporation
Commission ("ACC" or the "Commission") established a "framework" for
introduction of competitive electric services throughout the territories of
public service corporations in Arizona in the rules adopted in A.A.C. R14-2-1601
ET SEQ. (collectively, "Electric Competition Rules" as they may be amended from
time to time). The Electric Competition Rules established by that order
contemplated future changes to such rules and the possibility of waivers or
amendments for particular companies under appropriate circumstances. Since their
initial issuance, the Electric Competition Rules have been amended several times
and are currently stayed pursuant to Decision No. 61311, dated January 5, 1999.
During this time, APS, Commission Staff and other interested parties have
participated in a number of proceedings, workshops, public comment sessions and
individual negotiations in order to further refine and develop a restructured
utility industry in Arizona that will provide meaningful customer choice in a
manner that is just, reasonable and in the public interest.

      This Agreement establishes the agreed upon transition for APS to a
restructured entity and will provide customers with competitive choices for
generation and certain other retail services. The Parties believe this Agreement
will produce benefits for all customers through implementing customer choice and
providing rate reductions so that the APS service territory may benefit from
economic growth. The Parties also believe this Agreement will fairly treat APS
and its shareholders by providing a reasonable opportunity to recover prudently
incurred investments and costs, including stranded costs and regulatory assets.

      Specifically, the Parties believe the Agreement is in the public interest
for the following reasons. FIRST, customers will receive substantial rate
reductions. SECOND, competition will be promoted through the introduction of
retail access faster than would have been possible without this Agreement and by
the functional separation of APS' power production and delivery functions.
THIRD, economic development and the environment will

benefit through guaranteed rate reductions and the continuation of renewable and
energy efficiency programs. FOURTH, universal service coverage will be
maintained through APS' low income assistance programs and establishment of
"provider of last resort" obligations on APS for customers who do not wish to
participate in retail access. FIFTH, APS will be able to recover its regulatory
assets and stranded costs as provided for in this Agreement without the
necessity of a general rate proceeding. Sixth, substantial litigation and
associated costs will be avoided by amicably resolving a number of important and
contentious issues that have already been raised in the courts and before the
Commission. Absent approval by the Commission of the settlement reflected by
this Agreement, APS would seek full stranded cost recovery and pursue other rate
and competitive restructuring provisions different than provided for herein. The
other Parties would challenge at least portions of APS' requested relief,
including the recovery of all stranded costs. The resulting regulatory hearings
and related court appeals would delay the start of competition and drain the
resources of all Parties.

      NOW, THEREFORE, APS and the Parties agree to the following provisions
which they believe to be just, reasonable and in the public interest:


                               TERMS OF AGREEMENT

                                     ARTICLE I
                         IMPLEMENTATION OF RETAIL ACCESS

      1.1 The APS distribution system shall be open for retail access on July 1,
1999; provided, however, that such retail access to electric generation and
other competitive electric services suppliers will be phased in for customers in
APS' service territory in accordance with the proposed Electric Competition
Rules, as and when such rules become effective, with an additional 140 MW being
made available to eligible non-residential customers. The Parties shall urge the
Commission to approve Electric Competition Rules, at least on an emergency
basis, so that meaningful retail access can begin by July 1, 1999. Unless
subject to judicial or regulatory restraint, APS shall open its distribution
system to retail access for all customers on January 1, 2001.

      1.2 APS will make retail access available to residential customers
pursuant to its December 21, 1998, filing with the Commission.

      1.3 The Parties acknowledge that APS' ability to offer retail access is
contingent upon numerous conditions and circumstances, a number of which are not
within the direct control of the Parties. Accordingly, the Parties agree that it
may become necessary to modify the terms of retail access to account for such
factors, and they further agree to address such matters in good faith and to
cooperate in an effort to propose joint resolutions of any such matters.

                                       2

      1.4. APS agrees to the amendment and modification of its Certificate(s) of
Convenience and Necessity to permit retail access consistent with the terms of
this Agreement. The Commission order adopting this Agreement shall constitute
the necessary Commission Order amending and modifying APS' CC&Ns to permit
retail access consistent with the terms of this Agreement.

                                   ARTICLE II
                                  RATE MATTERS

      2.1. The Company's unbundled rates and charges attached hereto as Exhibit
A will be effective as of July 1, 1999. The Company's presently authorized rates
and charges shall be deemed its standard offer ("Standard Offer") rates for
purposes of this Agreement and the Electric Competition Rules. Bills for
Standard Offer service shall indicate individual unbundled service components to
the extent required by the Electric Competition Rules.

      2.2. Future reductions of standard offer tariff rates of 1.5% for
customers having loads of less than 3 MW shall be effective as of July 1, 1999,
July 1, 2000, July 1, 2001, July 1, 2002, and July 1, 2003, upon the filing and
Commission acceptance of revised tariff sheets reflecting such decreases. For
customers having loads greater than 3 MW served on Rate Schedules E-34 and E-35,
Standard Offer tariff rates will be reduced: 1.5%, effective July 1, 1999; 1.5%
effective July 1, 2000; 1.25% effective July 1, 2001; and .75% effective July 1,
2002. The 1.5% Standard Offer rate reduction to be effective July 1, 1999,
includes the rate reduction otherwise required by Decision No. 59601. Such
decreases shall become effective by the filing with and acceptance by the
Commission of revised tariff sheets reflecting each decrease.

      2.3. Customers greater than 3 MW who choose a direct access supplier must
give APS one year's advance notice before being eligible to return to Standard
Offer service.

      2.4. Unbundled rates shall be reduced in the amounts and at the dates set
forth in Exhibit A attached hereto upon the filing and Commission acceptance of
revised tariff sheets reflecting such decreases.

      2.5. This Agreement shall not preclude APS from requesting, or the
Commission from approving, changes to specific rate schedules or terms and
conditions of service, or the approval of new rates or terms and conditions of
service, that do not significantly affect the overall earnings of the Company or
materially modify the tariffs or increase the rates approved in this Agreement.
Nothing contained in this Agreement shall preclude APS from filing changes to
its tariffs or terms and conditions of service which are not inconsistent with
its obligations under this Agreement.

      2.6. Notwithstanding the rate reduction provisions stated above, the
Commission shall, prior to December 31, 2002, approve an adjustment clause or
clauses which

                                       3

will provide full and timely recovery beginning July 1, 2004, of the reasonable
and prudent costs of the following:

     (1)  APS' "provider of last resort" and Standard Offer obligations for
          service after July 1, 2004, which costs shall be recovered only from
          Standard Offer and "provider of last resort" customers;

     (2)  Standard Offer service to customers who have left Standard Offer
          service or a special contract rate for a competitive generation
          supplier but who desire to return to Standard Offer service, which
          costs shall be recovered only from Standard Offer and "provider of
          last resort" customers;

     (3)  compliance with the Electric Competition Rules or Commission-ordered
          programs or directives related to the implementation of the Electric
          Competition Rules, as they may be amended from time to time, which
          costs shall be recovered from all customers receiving services from
          APS; and

     (4)  Commission-approved system benefit programs or levels not included in
          Standard Offer rates as of June 30, 1999, which costs shall be
          recovered from all customers receiving services from APS.

By June 1, 2002, APS shall file an application for an adjustment clause or
clauses, together with a proposed plan of administration, and supporting
testimony. The Commission shall thereafter issue a procedural order setting such
adjustment clause application for hearing and including reasonable provisions
for participation by other parties. The Commission order approving the
adjustment clauses shall also establish reasonable procedures pursuant to which
the Commission, Commission Staff and interested parties may review the costs to
be recovered. By June 30, 2003, APS will file its request for the specific
adjustment clause factors which shall, after hearing and Commission approval,
become effective July 1, 2004. APS shall be allowed to defer costs covered by
this Section 2.6 when incurred for later full recovery pursuant to such
adjustment clause or clauses, including a reasonable return.

      2.7. By June 30, 2003, APS shall file a general rate case with prefiled
testimony and supporting schedules and exhibits; provided, however, that any
rate changes resulting therefrom shall not become effective prior to July 1,
2004.

      2.8. APS shall not be prevented from seeking a change in unbundled or
Standard Offer rates prior to July 1, 2004, in the event of (a) conditions or
circumstances which constitute an emergency, such as the inability to finance on
reasonable terms, or (b) material changes in APS' cost of service for Commission
regulated services resulting from federal, tribal,

                                       4

state or local laws, regulatory requirements, judicial decision, actions or
orders. Except for the changes otherwise specifically contemplated by this
Agreement, unbundled and Standard Offer rates shall remain unchanged until at
least July 1, 2004.

                                   ARTICLE III
                      REGULATORY ASSETS AND STRANDED COSTS

      3.1. APS currently recovers regulatory assets through July 1, 2004,
pursuant to Commission Decision No. 59601 in accordance with the provisions of
this Agreement.

      3.2. APS has demonstrated that its allowable stranded costs after
mitigation (which result from the impact of retail access), exclusive of
regulatory assets, are at least $533 million net present value.

      3.3. The Parties agree that APS should not be allowed to recover $183
million net present value of the amounts included above. APS shall have a
reasonable opportunity to recover $350 million net present value through a
competitive transition charge ("CTC") set forth in Exhibit A attached hereto.
Such CTC shall remain in effect until December 31, 2004, at which time it will
terminate. If by that date APS has recovered more or less than $350 million net
present value, as calculated in accordance with Exhibit B attached hereto, then
the nominal dollars associated with any excess recovery/under recovery shall be
credited/debited against the costs subject to recovery under the adjustment
clause set forth in Section 2.6(3).

      3.4. The regulatory assets to be recovered under this Agreement, after
giving effect to the adjustments set forth in Section 3.3, shall be amortized in
accordance with Schedule C of Exhibit A attached hereto.

      3.5. Neither the Parties nor the Commission shall take any action that
would diminish the recovery of APS' stranded costs or regulatory assets provided
for herein. The Company's willingness to enter into this Agreement is based upon
the Commission's irrevocable promise to permit recovery of the Company's
regulatory assets and stranded costs as provided herein. Such promise by the
Commission shall survive the expiration of the Agreement and shall be
specifically enforceable against this and any future Commission.

                                   ARTICLE IV
                               CORPORATE STRUCTURE

      4.1. The Commission will approve the formation of an
affiliate or affiliates of APS to acquire at book value the competitive services
assets as currently required by the Electric Competition Rules. In order to
facilitate the separation of such assets efficiently and at the lowest possible
cost, the Commission shall grant APS a two-year extension of time until

                                       5

December 31, 2002, to accomplish such separation. A similar two-year extension
shall be authorized for compliance with A.A.C. R14-2-1606(B).

      4.2. Approval of this Agreement by the Commission shall be deemed to
constitute all requisite Commission approvals for (1) the creation by APS or its
parent of new corporate affiliates to provide competitive services including,
but not limited to, generation sales and power marketing, and the transfer
thereto of APS' generation assets and competitive services, and (2) the full and
timely recovery through the adjustment clause referred to in Section 2.6 above
for all of the reasonable and prudent costs so incurred in separating
competitive generation assets and competitive services as required by proposed
A.A.C. R14-2-1615, exclusive of the costs of transferring the APS power
marketing function to an affiliate. The assets and services to be transferred
shall include the items set forth on Exhibit C attached hereto. Such transfers
may require various regulatory and third party approvals, consents or waivers
from entities not subject to APS' control, including the FERC and the NRC. No
Party to this Agreement (including the Commission) will oppose, or support
opposition to, APS requests to obtain such approvals, consents or waivers.

      4.3. Pursuant to A.R.S. ss. 40-202(L), the Commission's
approval of this Agreement shall exempt any competitive service provided by APS
or its affiliates from the application of various provisions of A.R.S. Title 40,
including A.R.S. ss.ss. 40-203, 40-204(A), 40-204(B), 40-248, 40-250, 40-251,
40-285, 40-301, 40-302, 40-303, 40-321, 40-322, 40-331, 40-332, 40-334, 40-365,
40-366, 40-367 and 40-401.

      4.4. APS' subsidiaries and affiliates (including APS' parent) may take
advantage of competitive business opportunities in both energy and non-energy
related businesses by establishing such unregulated affiliates as they deem
appropriate, which will be free to operate in such places as they may determine.
The APS affiliate or affiliates acquiring APS' generating assets may be a
participant in the energy supply market within and outside of Arizona. Approval
of this Agreement by the Commission shall be deemed to include the following
specific determinations required under Sections 32(c) and (k)(2) of the Public
Utility Holding Company Act of 1935:

         APS or an affiliate is authorized to establish a subsidiary company,
         which will seek exempt wholesale generator ("EWG") status from the
         Federal Energy Regulatory Commission, for the purposes of acquiring and
         owning Generation Assets.

         The Commission has determined that allowing the Generation Assets to
         become "eligible facilities," within the meaning of Section 32 of the
         Public Utility Holding Company Act ("PUHCA"), and owned by an APS EWG
         affiliate (1) will benefit consumers, (2) is in the public interest,
         and (3) does not violate Arizona law.

                                       6

         The Commission has sufficient regulatory authority, resources and
         access to the books and records of APS and any relevant associate,
         affiliate, or subsidiary company to exercise its duties under Section
         32(k) of PUHCA.

         APS will purchase any electric energy from its EWG affiliate at market
         based rates. This Commission has determined that (1) the proposed
         transaction will benefit consumers and does not violate Arizona law;
         (2) the proposed transaction will not provide APS' EWG affiliate an
         unfair competitive advantage by virtue of its affiliation with APS; (3)
         the proposed transaction is in the public interest.

The APS affiliate or affiliates acquiring APS' generating assets will be subject
to regulation by the Commission, to the extent otherwise permitted by law, to no
greater manner or extent than that manner and extent of Commission regulation
imposed upon other owners or operators of generating facilities.

      4.5. The Commission's approval of this Agreement will constitute certain
waivers to APS and its affiliates (including its parent) of the Commission's
existing affiliate interest rules (A.A.C. R14-2-801, ET SEQ.), and the
rescission of all or portions of certain prior Commission decisions, all as set
forth on Exhibit D attached hereto.

      4.6. The Parties reserve their rights under Sections 205 and 206 of the
Federal Power Act with respect to the rates of any APS affiliate formed under
the provisions of this Article IV.

                                    ARTICLE V
                            WITHDRAWAL OF LITIGATION

      5.1. Upon receipt of a final order of the Commission approving this
Agreement that is no longer subject to judicial review, APS and the Parties
shall withdraw with prejudice all of their various court appeals of the
Commission's competition orders.

                                   ARTICLE VI
                           APPROVAL BY THE COMMISSION

      6.1. This Agreement shall not become effective until the issuance of a
final Commission order approving this Agreement without modification on or
before August 1, 1999. In the event that the Commission fails to approve this
Agreement without modification according to its terms on or before August 1,
1999, any Party to this Agreement may withdraw from this Agreement and shall
thereafter not be bound by its provisions; provided, however, that if APS
withdraws from this Agreement, the Agreement shall be null and void and of no
further force and effect. In any event, the rate reduction provisions of this
Agreement shall not take effect until this Agreement is approved. Parties so
withdrawing shall be free to pursue

                                       7

their respective positions without prejudice. Approval of this Agreement by the
Commission shall make the Commission a Party to this Agreement and fully bound
by its provisions.

      6.2. The Parties agree that they shall make all reasonable and good faith
efforts necessary to (1) obtain final approval of this Agreement by the
Commission, and (2) ensure full implementation and enforcement of all the terms
and conditions set forth in this Agreement. Neither the Parties nor the
Commission shall take or propose any action which would be inconsistent with the
provisions of this Agreement. All Parties shall actively defend this Agreement
in the event of any challenge to its validity or implementation.

                                   ARTICLE VII
                              MISCELLANEOUS MATTERS

      7.1. To the extent any provision of this Agreement is inconsistent with
any existing or future Commission order, rule or regulation or is inconsistent
with the Electric Competition Rules as now existing or as may be amended in the
future, the provisions of this Agreement shall control and the approval of this
Agreement by the Commission shall be deemed to constitute a Commission-approved
variation or exemption to any conflicting provision of the Electric Competition
Rules.

      7.2. The provisions of this Agreement shall be implemented and enforceable
notwithstanding the pendency of a legal challenge to the Commission's approval
of this Agreement, unless such implementation and enforcement is stayed or
enjoined by a court having jurisdiction over the matter. If any portion of the
Commission order approving this Agreement or any provision of this Agreement is
declared by a court to be invalid or unlawful in any respect, then (1) APS shall
have no further obligations or liability under this Agreement, including, but
not limited to, any obligation to implement any future rate reductions under
Article II not then in effect, and (2) the modifications to APS' certificates of
convenience and necessity referred to in Section 1.4 shall be automatically
revoked, in which event APS shall use its best efforts to continue to provide
noncompetitive services (as defined in the proposed Electric Competition Rules)
at then current rates with respect to customer contracts then in effect for
competitive generation (for the remainder of their term) to the extent not
prohibited by law and subject to applicable regulatory requirements.

      7.3. The terms and provisions of this Agreement apply solely to and are
binding only in the context of the purposes and results of this Agreement and
none of the positions taken herein by any Party may be referred to, cited or
relied upon by any other Party in any fashion as precedent or otherwise in any
other proceeding before this Commission or any other regulatory agency or before
any court of law for any purpose except in furtherance of the purposes and
results of this Agreement.

      7.4. This Agreement represents an attempt to compromise and settle
disputed claims regarding the prospective just and reasonable rate levels, and
the terms and conditions

                                       8

of competitive retail access, for APS in a manner consistent with the public
interest and applicable legal requirements. Nothing contained in this Agreement
is an admission by APS that its current rate levels or rate design are unjust or
unreasonable.

      7.5. As part of this Agreement, APS commits that it will continue the
APS Community Action Partnership (which includes weatherization, facility repair
and replacement, bill assistance, health and safety programs and energy
education) in an annual amount of at least $500,000 through July 1, 2004.
Additionally, the Company will, subject to Commission approval, continue low
income rates E-3 and E-4 under their current terms and conditions.

      7.6. APS shall actively support the Arizona Independent Scheduling
Administrator ("AISA") and the formation of the Desert Star Independent System
Operator. APS agrees to modify its OATT to be consistent with any FERC approved
AISA protocols. The Parties reserve their rights with respect to any AISA
protocols, including the right to challenge or seek modifications to, or waivers
from, such protocols. APS shall file changes to its existing OATT consistent
with this section within ten (10) days of Commission approval of this Agreement
pursuant to Section 6.1.

      7.7. Within thirty (30) days of Commission approval of this Agreement
pursuant to Section 6.1, APS shall serve on the Parties an Interim Code of
Conduct to address inter-affiliate relationships involving APS as a utility
distribution company. APS shall voluntarily comply with this Interim Code of
Conduct until the Commission approves a code of conduct for APS in accordance
with the Electric Competition Rules that is concurrently effective with codes of
conduct for all other Affected Utilities (as defined in the Electric Competition
Rules). APS shall meet and confer with the Parties prior to serving its Interim
Code of Conduct.

      7.8.  In the event of any  disagreement  over the  interpretation  of this
Agreement or the implementation of any of the provisions of this Agreement,  the
Parties shall  promptly  convene a conference and in good faith shall attempt to
resolve such disagreement.

      7.9. The obligations under this Agreement that apply for a specific term
set forth herein shall expire automatically in accordance with the term
specified and shall require no further action for their expiration.

      7.10. The Parties agree and recommend that the Commission schedule
public meetings and hearings for consideration of this Agreement. The filing of
this Agreement with the Commission shall be deemed to be the filing of a formal
request for the expeditious issuance of a procedural schedule that establishes
such formal hearings and public meetings as may be necessary for the Commission
to approve this Agreement in accordance with

                                       9

Section 6.1 and that afford interested parties adequate opportunity to comment
and be heard on the terms of this Agreement consistent with applicable legal
requirements.

DATED at Phoenix, Arizona, as of this 14th day of May, 1999.

RESIDENTIAL UTILITY                      ARIZONA PUBLIC SERVICE COMPANY
CONSUMER OFFICE

By  Greg Patterson                       By   Jack E. Davis
  -------------------------------             -------------------------------

Title Director                           Title President, Energy
     ----------------------------             -------------------------------
                                               Delivery & Sales
                                              -------------------------------

ARIZONA COMMUNITY ACTION                 (Party)
ASSOCIATION                              ------------------------------------

By  Janet Regner                          By
  -------------------------------             -------------------------------

Title Executive Director                  Title
     ----------------------------              ------------------------------


ARIZONANS FOR ELECTRIC CHOICE AND         (Party)
COMPETITION,* a coalition of companies     ------------------------------------
and associations in support of
competition that includes Cable Systems
International, BHP Copper, Motorola,      By
Chemical Lime, Intel, Honeywell,              -------------------------------
Allied Signal, Cyprus Climax Metals,
Asarco, Phelps Dodge, Homebuilders        Title
of Central Arizona, Arizona Mining             ------------------------------
Industry Gets Our Support, Arizona
Food Marketing Alliance, Arizona
Association of Industries, Arizona
Multi-housing Association, Arizona Rock
Products Association, Arizona Restaurant  (Party)
Association, and Arizona Retailers        ----------------------------------
Association.

By Peter A. Woog                           By
  -------------------------------            -------------------------------

Title Chairman                             Title
     ----------------------------               ----------------------------

* Enron is not a signatory to this Agreement.

* Also included: Boeing, AZ School Board Association, National Federation of
Independent Business (NFIB), AZ Hospital Association, Lockheed Martin, Abbot
Labs, Raytheon
                                       10

(Party)                                    (Party)
- ---------------------------------          ---------------------------------

By                                         By
  -------------------------------            -------------------------------

Title                                      Title
     ----------------------------               ----------------------------


(Party)                                    (Party)
- ---------------------------------          ---------------------------------

By                                         By
  -------------------------------            -------------------------------

Title                                      Title
     ----------------------------               ----------------------------


(Party)                                    (Party)
- ---------------------------------          ---------------------------------

By                                         By
  -------------------------------            -------------------------------

Title                                      Title
     ----------------------------               ----------------------------


(Party)                                    (Party)
- ---------------------------------          ---------------------------------

By                                         By
  -------------------------------            -------------------------------

Title                                      Title
     ----------------------------               ----------------------------

                                       11

                                                                       EXHIBIT A
                                                                         5/10/99
                                                                           DA-R1
                             ELECTRIC DELIVERY RATES


ARIZONA PUBLIC SERVICE COMPANY                      A.C.C. No. XXXX
Phoenix, Arizona                                    Tariff or Schedule No. DA-R1
Filed by:  Alan Propper                             Original Tariff
Title:  Director, Pricing and Regulation            Effective:  XXX  XX, 1999

                                  DIRECT ACCESS
                               RESIDENTIAL SERVICE

AVAILABILITY

         This rate schedule is available in all certificated retail delivery
service territory served by Company and where facilities of adequate capacity
and the required phase and suitable voltage are adjacent to the premises served.

APPLICATION

         This rate schedule is applicable to customers receiving electric energy
on a direct access basis from any certificated Electric Service Provider (ESP)
as defined in A.A.C. R14-2-1603. This rate schedule is applicable only to
electric delivery required for residential purposes in individual private
dwellings and in individually metered apartments when such service is supplied
at one point of delivery and measured through one meter. For those dwellings and
apartments where electric service has historically been measured through two
meters, when one of the meters was installed pursuant to a water heating or
space heating rate schedule no longer in effect, the electric service measured
by such meters shall be combined for billing purposes.

         This rate schedule shall become effective as defined in Company's Terms
and Conditions for Direct Access (Schedule #10.)

TYPE OF SERVICE

         Service shall be single phase, 60 Hertz, at one standard voltage
(120/240 or 120/208 as may be selected by customer subject to availability at
the customer's premise). Three phase service is furnished under the Company's
Conditions Governing Extensions of Electric Distribution Lines and Services
(Schedule #3). Transformation equipment is included in cost of extension. Three
phase service is required for motors of an individual rated capacity of 7 1/2 HP
or more.

METERING REQUIREMENTS

         All customers shall comply with the terms and conditions for load
profiling or hourly metering specified in Schedule #10.

MONTHLY BILL

         The monthly bill shall be the greater of the amount computed under A.
or B. below, including the applicable Adjustments.

         A. RATE

         May - October Billing Cycles (Summer):

                       Basic                              Competitive
                     Delivery                  System     Transition
                      Service   Distribution   Benefits     Charge
                      -------   ------------   --------     ------
          $/month     $10.00

          All kWh                $0.04158    $0.00115    $0.00930

         November - April Billing Cycles (Winter):

                       Basic                              Competitive
                     Delivery                   System     Transition
                      Service   Distribution   Benefits     Charge
                      -------   ------------   --------     ------
          $/month     $10.00

          All kWh                $0.03518    $0.00115    $0.00930

         B.  MINIMUM       $ 10.00 per month


                           (CONTINUED ON REVERSE SIDE)

                                                                           DA-R1
                                                                 A.C.C. No. XXXX
                                                                     Page 2 of 2

      ADJUSTMENTS

      1.    When Metering, Meter Reading or Consolidated Billing are provided by
            the Customer's ESP, the monthly bill will be credited as follows:

                  Meter             $1.30 per month
                  Meter Reading     $0.30 per month
                  Billing           $0.30 per month

      2.    The monthly bill is also subject to the applicable proportionate
            part of any taxes, or governmental impositions which are or may in
            the future be assessed on the basis of gross revenues of the Company
            and/or the price or revenue from the electric service sold and/or
            the volume of energy delivered or purchased for sale and/or sold
            hereunder.

SERVICES ACQUIRED FROM CERTIFICATED ELECTRIC SERVICE PROVIDERS

         Customers served under this rate schedule are responsible for acquiring
their own generation and any other required competitively supplied services from
an ESP. The Company will provide and bill its transmission and ancillary
services on rates approved by the Federal Energy Regulatory Commission to the
Scheduling Coordinator who provides transmission service to the Customer's ESP.
The Customer's ESP must submit a Direct Access Service Request pursuant to the
terms and conditions in Schedule #10.

ON-SITE GENERATION TERMS AND CONDITIONS

         Customers served under this rate schedule who have on-site generation
connected to the Company's electrical delivery grid shall enter into an
Agreement for Interconnection with the Company which shall establish all
pertinent details related to interconnection and other required service
standards. The Customer does not have the option to sell power and energy to the
Company under this tariff.

TERMS AND CONDITIONS

         This rate schedule is subject to the Company's Terms and Conditions for
Standard Offer and Direct Access Services (Schedule #1) and Schedule #10. These
schedules have provisions that may affect customer's monthly bill.

                                                                       EXHIBIT A
                                                                         5/10/99
                                                                          DA-GS1
                             ELECTRIC DELIVERY RATES


ARIZONA PUBLIC SERVICE COMPANY                     A.C.C. No. XXXX
Phoenix, Arizona                                   Tariff or Schedule No. DA-GS1
Filed by:  Alan Propper                            Original Tariff
Title:  Director, Pricing and Regulation           Effective: XXX  XX, 1999

                                  DIRECT ACCESS
                                 GENERAL SERVICE

AVAILABILITY

         This rate schedule is available in all certificated retail delivery
service territory served by Company at all points where facilities of adequate
capacity and the required phase and suitable voltage are adjacent to the
premises served.

APPLICATION

         This rate schedule is applicable to customers receiving electric energy
on a direct access basis from any certificated Electric Service Provider (ESP)
as defined in A.A.C. R14-2-1603. This rate schedule is applicable to all
electric service required when such service is supplied at one point of delivery
and measured through one meter. For those customers whose electricity is
delivered through more than one meter, service for each meter shall be computed
separately under this rate unless conditions in accordance with the Company's
Schedule #4 (Totalized Metering of Multiple Service Entrance Sections At a
Single Premise for Standard Offer and Direct Access Service) are met. For those
service locations where electric service has historically been measured through
two meters, when one of the meters was installed pursuant to a water heating
rate schedule no longer in effect, the electric service measured by such meters
shall be combined for billing purposes.

         This rate schedule shall become effective as defined in Company's Terms
and Conditions for Direct Access (Schedule #10).

         This rate schedule is not applicable to residential service, resale
service or direct access service which qualifies for Rate Schedule DA-GS10.

TYPE OF SERVICE

         Service shall be single or three phase, 60 Hertz, at one standard
voltage as may be selected by customer subject to availability at the customer's
premise. Three phase service is furnished under the Company's Conditions
Governing Extensions of Electric Distribution Lines and Services (Schedule #3).
Transformation equipment is included in cost of extension. Three phase service
is not furnished for motors of an individual rated capacity of less than 7 1/2
HP, except for existing facilities or where total aggregate HP of all connected
three phase motors exceed 12 HP. Three phase service is required for motors of
an individual rated capacity of more than 7 1/2 HP.

METERING REQUIREMENTS

         All customers shall comply with the terms and conditions for load
profiling or hourly metering specified in the Company's Schedule #10.

MONTHLY BILL

         The monthly bill shall be the greater of the amount computed under A.
or B. below, including the applicable Adjustments.

         A.  RATE


         June - October Billing Cycles (Summer):

                              Basic                               Competitive
                             Delivery                   System    Transition
                             Service    Distribution    Benefits    Charge
                             -------    ------------    --------    ------

            $/month           $12.50

            Per kW over 5                 $0.721

            Per kWh for the
            first 2,500 kWh              $0.04255

            Per kWh for the
            next 100 kWh per
            kW over 5                    $0.04255

            Per kWh for the
            next 42,000 kWh              $0.02901

            Per kWh for all
            additional kWh               $0.01811

            Per all kWh                                 $0.00115

            Per all kW                                               $2.43

                           (CONTINUED ON REVERSE SIDE)


                                                                          DA-GS1
                                                                 A.C.C. No. XXXX
                                                                     Page 2 of 3

         A.  RATE (continued)

         November - May Billing Cycles (Winter):

                              Basic                               Competitive
                             Delivery                   System    Transition
                             Service    Distribution    Benefits    Charge
                             -------    ------------    --------    ------

            $/month           $12.50

            Per kW over 5                 $0.652

            Per kWh for the
            first 2,500 kWh              $0.03827

            Per kWh for the
            next 100 kWh per
            kW over 5                    $0.03827

            Per kWh for the
            next 42,000 kWh              $0.02600

            Per kWh for all
            additional kWh               $0.01614

            Per all kWh                                 $0.00115

            Per all kW                                               $2.43


          PRIMARY AND TRANSMISSION LEVEL SERVICE:

          1.   For customers served at primary voltage (12.5kV to below 69kV),
               the Distribution charge will be discounted by 11.6%.
          2.   For customers served at transmission voltage (69kV or higher),
               the Distribution charge will be discounted 52.6%.
          3.   Pursuant to A.A.C. R14-2-1612.K.11, the Company shall retain
               ownership of Current Transformers (CT's) and Potential
               Transformers (PT's) for those customers taking service at voltage
               levels of more than 25kV. For customers whose metering services
               are provided by an ESP, a monthly facilities charge will be
               billed, in addition to all other applicable charges shown above,
               as determined in the service contract based upon the Company's
               cost of CT and PT ownership, maintenance and operation.

          DETERMINATION OF KW

          The kW used for billing purposes shall be the average kW supplied
          during the 15-minute period of maximum use during the month, as
          determined from readings of the delivery meter.

     B. MINIMUM

          $12.50 plus $1.74 for each kW in excess of five of either the highest
          kW established during the 12 months ending with the current month or
          the minimum kW specified in the agreement for service, whichever is
          the greater.

     ADJUSTMENTS

     1.   When Metering, Meter Reading or Consolidated Billing are provided by
          the Customer's ESP, the monthly bill will be credited as follows:
              Meter         $4.00 per month
              Meter Reading $0.30 per month
              Billing       $0.30 per month

     2.   The monthly bill is also subject to the applicable proportionate part
          of any taxes, or governmental impositions which are or may in the
          future be assessed on the basis of gross revenues of the Company
          and/or the price or revenue from the electric service sold and/or the
          volume of energy delivered or purchased for sale and/or sold
          hereunder.

SERVICES ACQUIRED FROM CERTIFICATED ELECTRIC SERVICE PROVIDERS

         Customers served under this rate schedule are responsible for acquiring
their own generation and any other required competitively supplied services from
an ESP or under the Company's Open Access Transmission Tariff. The Company will
provide and bill its transmission and ancillary services on rates approved by
the Federal Energy Regulatory Commission to the Scheduling Coordinator who
provides transmission service to the Customer's ESP. The Customer's ESP must
submit a Direct Access Service Request pursuant to the terms and conditions in
Schedule #10.

                              (CONTINUED ON PAGE 3)

                                                                          DA-GS1
                                                                 A.C.C. No. XXXX
                                                                     Page 3 of 3
ON-SITE GENERATION TERMS AND CONDITIONS

         Customers served under this rate schedule who have on-site generation
connected to the Company's electrical delivery grid shall enter into an
Agreement for Interconnection with the Company which shall establish all
pertinent details related to interconnection and other required service
standards. The Customer does not have the option to sell power and energy to the
Company under this tariff.

CONTRACT PERIOD

    0 - 1,999 kW:       As provided in Company's standard agreement for service.
    2,000 kW and above: Three (3) years, or longer, at Company's option for
                        initial period when construction is required. One
                        (1) year, or longer, at Company's option when
                        construction is not required.

TERMS AND CONDITIONS

         This rate schedule is subject to Company's Terms and Conditions for
Standard Offer and Direct Access Service (Schedule #1) and the Company's
Schedule #10. These Schedules have provisions that may affect customer's monthly
bill.

                                                                       EXHIBIT A
                                                                         5/10/99
                                                                         DA-GS10
                             ELECTRIC DELIVERY RATES


ARIZONA PUBLIC SERVICE COMPANY                    A.C.C. No. XXXX
Phoenix, Arizona                                  Tariff or Schedule No. DA-GS10
Filed by:  Alan Propper                           Original Tariff
Title:  Director, Pricing and Regulation          Effective:  XXX  XX, 1999

                                  DIRECT ACCESS
                           EXTRA LARGE GENERAL SERVICE

AVAILABILITY

         This rate schedule is available in all certificated retail delivery
service territory served by Company at all points where facilities of adequate
capacity and the required phase and suitable voltage are adjacent to the
premises served.

APPLICATION

         This rate schedule is applicable to customers receiving electric energy
on a direct access basis from any certificated Electric Service Provider (ESP)
as defined in A.A.C. R14-2-1603. This rate schedule is applicable only to
customers whose monthly maximum demand is 3,000 kW or more for three (3)
consecutive months in any continuous twelve (12) month period ending with the
current month. Service must be supplied at one point of delivery and measured
through one meter unless otherwise specified by individual customer contract.
For those customers whose electricity is delivered through more than one meter,
service for each meter shall be computed separately under this rate unless
conditions in accordance with the Company's Schedule #4 (Totalized Metering of
Multiple Service Entrance Sections At a Single Premise for Standard Offer and
Direct Access Service) are met.

         This rate schedule is not applicable to resale service.

         This rate schedule shall become effective as defined in Company's Terms
and Conditions for Direct Access (Schedule #10).

TYPE OF SERVICE

         Service shall be three phase, 60 Hertz, at Company's standard voltages
that are available within the vicinity of customer's premise.

METERING REQUIREMENTS

         All customers shall comply with the terms and conditions for hourly
metering specified in Schedule #10.

MONTHLY BILL

         The monthly bill shall be the greater of the amount computed under A.
or B. below, including the applicable Adjustments.

         A. RATE

                      Basic                               Competitive
                    Delivery                    System    Transition
                     Service    Distribution    Benefits     Charge
                     -------    ------------    --------     ------

          $/month   $2,430.00

          per kW                   $3.53                      $2.82

          per kWh                $0.00999       $0.00115

         PRIMARY AND TRANSMISSION LEVEL SERVICE:

            1.    For customers served at primary voltage (12.5kV to below
                  69kV), the Distribution charge will be discounted by 4.8%.

            2.    For customers served at transmission voltage (69kV or higher),
                  the Distribution charge will be discounted 36.7%.

            3.    Pursuant to A.A.C. R14-2-1612.K.11, the Company shall retain
                  ownership of Current Transformers (CT's) and Potential
                  Transformers (PT's) for those customers taking service at
                  voltage levels of more than 25 kV. For customers whose
                  metering services are provided by an ESP, a monthly facilities
                  charge will be billed, in addition to all other applicable
                  charges shown above, as determined in the service contract
                  based upon the Company's cost of CT and PT ownership,
                  maintenance and operation.

         DETERMINATION OF KW

         The kW used for billing purposes shall be the greater of:

            1.    The kW used for billing purposes shall be the average kW
                  supplied during the 15minute period (or other period as
                  specified by individual customer's contract) of maximum use
                  during the month, as determined from readings of the delivery
                  meter.

            2.    The minimum kW specified in the agreement for service or
                  individual customer contract.

                           (CONTINUED ON REVERSE SIDE)


                                                                         DA-GS10
                                                                 A.C.C. No. XXXX
                                                                     Page 2 of 2

         B. MINIMUM

         $2,430.00 per month plus $1.74 per kW per month.

         ADJUSTMENTS

            1.    When Metering, Meter Reading or Consolidated Billing are
                  provided by the Customer's ESP, the monthly bill will be
                  credited as follows:

                      Meter         $ 55.00 per month
                      Meter Reading $  0.30 per month
                      Billing       $  0.30 per month

            2.    The monthly bill is also subject to the applicable
                  proportionate part of any taxes, or governmental impositions
                  which are or may in the future be assessed on the basis of
                  gross revenues of the Company and/or the price or revenue from
                  the electric service sold and/or the volume of energy
                  delivered or purchased for sale and/or sold hereunder.

SERVICES ACQUIRED FROM CERTIFICATED ELECTRIC SERVICE PROVIDERS

         Customers served under this rate schedule are responsible for acquiring
their own generation and any other required competitively supplied services from
an ESP. T he Company will provide and bill its transmission and ancillary
services on rates approved by the Federal Energy Regulatory Commission to the
Scheduling Coordinator who provides transmission service to the Customer's ESP.
The Customer's ESP must submit a Direct Access Service Request pursuant to the
terms and conditions in Schedule #10.

ON-SITE GENERATION TERMS AND CONDITIONS

         Customers served under this rate schedule who have on-site generation
connected to the Company's electrical delivery grid shall enter into an
Agreement for Interconnection with the Company which shall establish all
pertinent details related to interconnection and other required service
standards. The Customer does not have the option to sell power and energy to the
Company under this tariff.

CONTRACT PERIOD

         For service locations in:

            a)    Isolated Areas: Ten (10) years, or longer, at Company's
                  option, with standard seven (7) year termination period.

            b)    Other Areas: Three (3) years, or longer, at Company's option.

TERMS AND CONDITIONS

         This rate schedule is subject to Company's Terms and Conditions for
Standard Offer and Direct Access Service (Schedule #1) and the Company's
Schedule #10. These schedules have provisions that may affect customer's monthly
bill.

                                                                       EXHIBIT A
                                                                         5/13/99
                                                                         DA-GS11
                             ELECTRIC DELIVERY RATES


ARIZONA PUBLIC SERVICE COMPANY                    A.C.C. No. XXXX
Phoenix, Arizona                                  Tariff or Schedule No. DA-GS11
Filed by:  Alan Propper                           Original Tariff
Title:  Director, Pricing and Regulation          Effective:  XXX XX, 1999

                                  DIRECT ACCESS
                                 RALSTON PURINA

AVAILABILITY

         This rate schedule is available in all certificated retail delivery
service territory served by Company at all points where facilities of adequate
capacity and the required phase and suitable voltage are adjacent to the
premises served.

APPLICATION

         This rate schedule is applicable only to Ralston Purina (Site
#863970289) when it receives electric energy on a direct access basis from any
certificated Electric Service Provider (ESP) as defined in A.A.C. R14-2-1603.
Service must be supplied as specified by individual customer contract and the
Company's Schedule #4 (Totalized Metering of Multiple Service Entrance Sections
At a Single Premise for Standard Offer and Direct Access Service).

         This rate schedule is not applicable to resale service.

         This rate schedule shall become effective as defined in Company's Terms
and Conditions for Direct Access (Schedule #10).

TYPE OF SERVICE

         Service shall be three phase, 60 Hertz, at 12.5 kV.

METERING REQUIREMENTS

         Customer shall comply with the terms and conditions for hourly metering
specified in Schedule #10.

MONTHLY BILL

         The monthly bill shall be the greater of the amount computed under A.
or B. below, including the applicable Adjustments.

      A.    RATE

                          Basic                                  Competitive
                         Delivery                     System     Transition
                         Service     Distribution    Benefits      Charge
                         -------     ------------    --------      ------
              $/month   $2,430.00

              per kW                    $2.58                       $1.86

              per kWh                  $0.00732      $0.00115


                  DETERMINATION OF KW

                  The kW used for billing purposes shall be the greater of:

                  1.    The kW used for billing purposes shall be the average kW
                        supplied during the 15minute period (or other period as
                        specified by individual customer's contract) of maximum
                        use during the month, as determined from readings of the
                        delivery meter.

                  2.    The minimum kW specified in the agreement for service or
                        individual customer contract.

      B.    MINIMUM

         $2,430.00 per month plus $1.74 per kW per month.

      ADJUSTMENTS

      1.    When Metering, Meter Reading or Consolidated Billing are provided by
            the Customer's ESP, the monthly bill will be credited as follows:
                      Meter         $ 55.00 per month
                      Meter Reading $  0.30 per month
                      Billing       $  0.30 per month

      2.    The monthly bill is also subject to the applicable proportionate
            part of any taxes, or governmental impositions which are or may in
            the future be assessed on the basis of gross revenues of the Company
            and/or the price or revenue from the electric service sold and/or
            the volume of energy delivered or purchased for sale and/or sold
            hereunder.

                           (CONTINUED ON REVERSE SIDE)

                                                                         DA-GS11
                                                                 A.C.C. No. XXXX
                                                                     Page 2 of 2

SERVICES ACQUIRED FROM CERTIFICATED ELECTRIC SERVICE PROVIDERS

         Customer is responsible for acquiring its own generation and any other
required competitively supplied services from an ESP. T he Company will provide
and bill its transmission and ancillary services on rates approved by the
Federal Energy Regulatory Commission to the Scheduling Coordinator who provides
transmission service to the Customer's ESP. The Customer's ESP must submit a
Direct Access Service Request pursuant to the terms and conditions in Schedule
#10.

ON-SITE GENERATION TERMS AND CONDITIONS

         If Customer has on-site generation connected to the Company's
electrical delivery grid, it shall enter into an Agreement for Interconnection
with the Company which shall establish all pertinent details related to
interconnection and other required service standards. The Customer does not have
the option to sell power and energy to the Company under this tariff.

TERMS AND CONDITIONS

         This rate schedule is subject to Company's Terms and Conditions for
Standard Offer and Direct Access Service (Schedule #1) and the Company's
Schedule #10. These schedules have provisions that may affect customer's monthly
bill.

                                                                       EXHIBIT A
                                                                         5/13/99
                                                                         DA-GS12
                             ELECTRIC DELIVERY RATES


ARIZONA PUBLIC SERVICE COMPANY                    A.C.C. No. XXXX
Phoenix, Arizona                                  Tariff or Schedule No. DA-GS12
Filed by:  Alan Propper                           Original Tariff
Title:  Director, Pricing and Regulation          Effective:  XXX  XX, 1999

                                  DIRECT ACCESS
                                   BHP COPPER

AVAILABILITY

         This rate schedule is available in all certificated retail delivery
service territory served by Company at all points where facilities of adequate
capacity and the required phase and suitable voltage are adjacent to the
premises served.

APPLICATION

         This rate schedule is applicable only to BHP Copper (Site #774932285)
when it receives electric energy on a direct access basis from any certificated
Electric Service Provider (ESP) as defined in A.A.C. R14-2-1603. Service must be
supplied as specified by individual customer contract and the Company's Schedule
#4 (Totalized Metering of Multiple Service Entrance Sections At a Single Premise
for Standard Offer and Direct Access Service).

         This rate schedule is not applicable to resale service.

         This rate schedule shall become effective as defined in Company's Terms
and Conditions for Direct Access (Schedule #10).

TYPE OF SERVICE

         Service shall be three phase, 60 Hertz, at 12.5 kV or higher.

METERING REQUIREMENTS

         Customer shall comply with the terms and conditions for hourly metering
specified in Schedule #10.

MONTHLY BILL

         The monthly bill shall be the greater of the amount computed under A.
or B. below, including the applicable Adjustments.

         A. RATE


                 Basic    Distribution    Distribution               Competitive
               Delivery   at Primary    at Transmission   System     Transition
                Service     Voltage         Voltage       Benefits     Charge
                -------     -------         -------       --------     ------

     $/month   $2,430.00

     per kW                  $2.35           $1.22                      $1.54

     per kWh               $0.00665        $0.00346       $0.00115


            PRIMARY AND TRANSMISSION LEVEL SERVICE:

                  Pursuant to A.A.C. R14-2-1612.K.11, the Company shall retain
                  ownership of Current Transformers (CT's) and Potential
                  Transformers (PT's) for those customers taking service at
                  voltage levels of more than 25 kV. For customers whose
                  metering services are provided by an ESP, a monthly facilities
                  charge will be billed, in addition to all other applicable
                  charges shown above, as determined in the service contract
                  based upon the Company's cost of CT and PT ownership,
                  maintenance and operation.

            DETERMINATION OF KW

                  The kW used for billing purposes shall be the greater of:

            1.    The kW used for billing purposes shall be the average kW
                  supplied during the 30minute period (or other period as
                  specified by individual customer's contract) of maximum use
                  during the month, as determined from readings of the delivery
                  meter.

            2.    The minimum kW specified in the agreement for service or
                  individual customer contract.

         B. MINIMUM

            $2,430.00 per month plus $1.74 per kW per month.

                           (CONTINUED ON REVERSE SIDE)

                                                                         DA-GS12
                                                                 A.C.C. No. XXXX
                                                                     Page 2 of 2

            ADJUSTMENTS

            1.    When Metering, Meter Reading or Consolidated Billing are
                  provided by the Customer's ESP, the monthly bill will be
                  credited as follows:

                      Meter         $ 55.00 per month
                      Meter Reading $  0.30 per month
                      Billing       $  0.30 per month

            2.    The monthly bill is also subject to the applicable
                  proportionate part of any taxes, or governmental impositions
                  which are or may in the future be assessed on the basis of
                  gross revenues of the Company and/or the price or revenue from
                  the electric service sold and/or the volume of energy
                  delivered or purchased for sale and/or sold hereunder.

SERVICES ACQUIRED FROM CERTIFICATED ELECTRIC SERVICE PROVIDERS

         Customer is responsible for acquiring its own generation and any other
required competitively supplied services from an ESP. T he Company will provide
and bill its transmission and ancillary services on rates approved by the
Federal Energy Regulatory Commission to the Scheduling Coordinator who provides
transmission service to the Customer's ESP. The Customer's ESP must submit a
Direct Access Service Request pursuant to the terms and conditions in Schedule
#10.

ON-SITE GENERATION TERMS AND CONDITIONS

         If Customer has on-site generation connected to the Company's
electrical delivery grid, it shall enter into an Agreement for Interconnection
with the Company which shall establish all pertinent details related to
interconnection and other required service standards. The Customer does not have
the option to sell power and energy to the Company under this tariff.

TERMS AND CONDITIONS

         This rate schedule is subject to Company's Terms and Conditions for
Standard Offer and Direct Access Service (Schedule #1) and the Company's
Schedule #10. These schedules have provisions that may affect customer's monthly
bill.

                                                                       EXHIBIT A
                                                                         5/13/99
                                                                         DA-GS13
                             ELECTRIC DELIVERY RATES


ARIZONA PUBLIC SERVICE COMPANY                    A.C.C. No. XXXX
Phoenix, Arizona                                  Tariff or Schedule No. DA-GS13
Filed by:  Alan Propper                           Original Tariff
Title:  Director, Pricing and Regulation          Effective:  XXX  XX, 1999

                                  DIRECT ACCESS
                                  CYPRUS BAGDAD

AVAILABILITY

         This rate schedule is available in all certificated retail delivery
service territory served by Company at all points where facilities of adequate
capacity and the required phase and suitable voltage are adjacent to the
premises served.

APPLICATION

         This rate schedule is applicable only to Cyprus Bagdad (Site
#120932284) when it receives electric energy on a direct access basis from any
certificated Electric Service Provider (ESP) as defined in A.A.C. R14-2-1603.
Service must be supplied as specified by individual customer contract and the
Company's Schedule #4 (Totalized Metering of Multiple Service Entrance Sections
At a Single Premise for Standard Offer and Direct Access Service).

         This rate schedule is not applicable to resale service.

         This rate schedule shall become effective as defined in Company's Terms
and Conditions for Direct Access (Schedule #10).

TYPE OF SERVICE

         Service shall be three phase, 60 Hertz, at 115 kV or higher.

METERING REQUIREMENTS

         Customer shall comply with the terms and conditions for hourly metering
specified in Schedule #10.

MONTHLY BILL

         The monthly bill shall be the greater of the amount computed under A.
or B. below, including the applicable Adjustments.

         A. RATE

                      Basic                                 Competitive
                    Delivery                      System    Transition
                     Service     Distribution    Benefits     Charge
                     -------     ------------    --------     ------

          $/month   $2,430.00

          per kW                    $1.05                      $1.34

          per kWh                 $0.00298       $0.00115


            PRIMARY AND TRANSMISSION LEVEL SERVICE:

                  Pursuant to A.A.C. R14-2-1612.K.11, the Company shall retain
                  ownership of Current Transformers (CT's) and Potential
                  Transformers (PT's) for those customers taking service at
                  voltage levels of more than 25 kV. For customers whose
                  metering services are provided by an ESP, a monthly facilities
                  charge will be billed, in addition to all other applicable
                  charges shown above, as determined in the service contract
                  based upon the Company's cost of CT and PT ownership,
                  maintenance and operation.

            DETERMINATION OF KW

            The kW used for billing purposes shall be the greater of:

            1.    The kW used for billing purposes shall be the average kW
                  supplied during the 30minute period (or other period as
                  specified by individual customer's contract) of maximum use
                  during the month, as determined from readings of the delivery
                  meter.

            2.    The minimum kW specified in the agreement for service or
                  individual customer contract.

         B. MINIMUM

         $2,430.00 per month plus $1.74 per kW per month, until June 30, 2004
when this minimum will no longer be applicable.

                           (CONTINUED ON REVERSE SIDE)

                                                                         DA-GS13
                                                                 A.C.C. No. XXXX
                                                                     Page 2 of 2

            ADJUSTMENTS

            1.    When Metering, Meter Reading or Consolidated Billing are
                  provided by the Customer's ESP, the monthly bill will be
                  credited as follows:

                      Meter         $ 55.00 per month
                      Meter Reading $  0.30 per month
                      Billing       $  0.30 per month

            2.    The monthly bill is also subject to the applicable
                  proportionate part of any taxes, or governmental impositions
                  which are or may in the future be assessed on the basis of
                  gross revenues of the Company and/or the price or revenue from
                  the electric service sold and/or the volume of energy
                  delivered or purchased for sale and/or sold hereunder.

SERVICES ACQUIRED FROM CERTIFICATED ELECTRIC SERVICE PROVIDERS

         Customer is responsible for acquiring its own generation and any other
required competitively supplied services from an ESP. T he Company will provide
and bill its transmission and ancillary services on rates approved by the
Federal Energy Regulatory Commission to the Scheduling Coordinator who provides
transmission service to the Customer's ESP. The Customer's ESP must submit a
Direct Access Service Request pursuant to the terms and conditions in Schedule
#10.

ON-SITE GENERATION TERMS AND CONDITIONS

         If Customer has on-site generation connected to the Company's
electrical delivery grid, it shall enter into an Agreement for Interconnection
with the Company which shall establish all pertinent details related to
interconnection and other required service standards. The Customer does not have
the option to sell power and energy to the Company under this tariff.

TERMS AND CONDITIONS

         This rate schedule is subject to Company's Terms and Conditions for
Standard Offer and Direct Access Service (Schedule #1) and the Company's
Schedule #10. These schedules have provisions that may affect customer's monthly
bill.

ARIZONA PUBLIC SERVICE COMPANY                                        Exhibit A
Competitive Transition Charges                                        5/13/99
By Direct Access Rate Classes                                         Schedule A


Line                                           Competition Transition Charges Effective January 1 of
- ----                                        ------------------------------------------------------------
 #        Direct Access Rate Class          1999       2000        2001       2002       2003       2004
- ----      ------------------------          ----       ----        ----       ----       ----       ----
                                                                              
 1   Residential, DA-R1 (per kWh)          $0.0093    $0.0084    $0.0063    $0.0056    $0.0050    $0.0036
 2   Under 3 mW, DA-GS1, (per kW/mo.)      $  2.43    $  2.20    $  1.66    $  1.46    $  1.30    $  0.94
 3   3 mW and Above, DA-GS10 (per kW/mo.)  $  2.82    $  2.55    $  1.89    $  1.72    $  1.51    $  1.09
 4   BHP Copper (per kW/mo.)               $  1.54    $  1.53    $  1.06    $  0.95    $  0.83    $  0.61
 5   Cyprus Copper (per kW/mo.)            $  1.34    $  1.46    $  1.05    $  0.94    $  0.82    $  0.61
 6   Ralston Purina (per kW/mo.)           $  1.86    $  1.98    $  1.50    $  1.34    $  1.18    $  0.87

 7   Average Retail (per kWh)              $0.0067    $0.0061    $0.0054    $0.0048    $0.0043    $0.0031


Charges are based upon recovery of $350 million NPV derived from APS' Compliance
Filing of 8/21/98 as adjusted to synchronize Direct Access and Standard Offer
revenue decreases.

ARIZONA PUBLIC SERVICE COMPANY                                        Exhibit A
Distribution Charges                                                  5/13/99
By Direct Access Rate Classes                                         Schedule B


                                                                   Distribution Charges Effective January 1 of
 Line                                                     ------------------------------------------------------------
  #           Direct Access Rate Class                    1999       2000       2001      2002        2003      2004a/
 ----         ------------------------                    ----       ----       ----      ----        ----      ------
                                                                                             
       RESIDENTIAL, DA-R1
  1           Summer per kWh                            $0.04158   $0.04041   $0.03934   $0.03837   $0.03748   $0.03689
  2           Winter per kWh                            $0.03518   $0.03419   $0.03329   $0.03247   $0.03172   $0.03122

       DA-GS1 (UNDER 3 MW)
         Summer Rates
  3        per kW for all kW over 5                     $0.721     $0.691     $  0.663   $  0.638    $ 0.615   $  0.600
  4        per kWh for the first 2,500 kWh              $0.04255   $0.04075   $0.03912   $0.03763   $0.03627   $0.03537
  5        per kWh for the next 100 kWh per kW over 5   $0.04255   $0.04075   $0.03912   $0.03763   $0.03627   $0.03537
  6        per kWh for the next 42,000 kWh              $0.02901   $0.02779   $0.02667   $0.02565   $0.02473   $0.02411
  7        per kWh for all additional kWh               $0.01811   $0.01735   $0.01665   $0.01602   $0.01544   $0.01506
         Winter Rates
  8        per kW for all kW over 5                     $0.652     $  0.624   $   0.599  $  0.576    $ 0.555   $  0.541
  9        per kWh for the first 2,500 kWh              $0.03827   $0.03666   $0.03519   $0.03385   $0.03263   $0.03182
  10       per kWh for the next 100 kWh per kW over 5   $0.03827   $0.03666   $0.03519   $0.03385   $0.03263   $0.03182
  11       per kWh for the next 42,000 kWh              $0.02600   $0.02490   $0.02390   $0.02299   $0.02216   $0.02161
  12       per kWh for all additional kWh               $0.01614   $0.01546   $0.01484   $0.01427   $0.01376   $0.01342
         Voltage Discounts
  13       Primary Voltage                                  11.6%      12.1%      12.6%      13.1%      13.6%      13.9%
  14       Transmission Voltage                             52.6%      54.9%      57.2%      59.5%      61.7%      63.3%

       DA-GS10 (3 MW AND ABOVE)
  15       per kW                                       $   3.53   $   3.33   $   3.15   $   2.98   $   2.83   $   2.73
  16       per kWh                                      $0.00999   $0.00943   $0.00892   $0.00845   $0.00802   $0.00774
          Voltage Discounts
  17       Primary Voltage Discount                          4.8%       5.1%       5.3%       5.6%       5.9%       6.2%
  18       Transmission Voltage Discount                    36.7%      38.9%      41.1%      43.4%      45.8%      47.4%

       DA-GS11 (RALSTON PURINA)
  19       per kW                                       $   2.58   $   2.71   $   2.57   $   2.44   $   2.32   $   2.25
  20       per kWh                                      $0.00732   $0.00767   $0.00727   $0.00691   $0.00657   $0.00635

       DA-GS12 (BHP COPPER)
  21      Primary Voltage Delivery  per kW              $   2.35   $   2.30   $   2.16   $   2.07   $   1.99   $   1.93
  22                                per kWh             $0.00665   $0.00651   $0.00611   $0.00585   $0.00561   $0.00546
  23      Transmission Voltage Delivery  per kW         $   1.22   $   1.17   $   1.03   $   0.94   $   0.85   $   0.80
  24                                     per kWh        $0.00346   $0.00332   $0.00292   $0.00266   $0.00242   $0.00227

       DA-GS13 (CYPRUS BAGDAD)
  25          per kW                                    $   1.05   $   1.21   $   1.03   $   0.94   $   0.85   $   0.80
  26          per kWh                                   $0.00297   $0.00343   $0.00292   $0.00266   $0.00242   $0.00227



a/    Transmission voltage customers will not pay Distribution Charges after
      June 30, 2004

                                                                      Exhibit A
                                                                      5/14/99
                                                                      Schedule C

                         ARIZONA PUBLIC SERVICE COMPANY
                     Regulatory Asset Amortization Schedule
                             (Millions of Dollars)


                                                      1/1 - 6/30
   1999       2000       2001       2002      2003      2004 1/       Total 2/
   ----       ----       ----       ----      ----      -------       --------

   164        158         145       115        86         18             686



1/    Amortization ends 6/30/2004

2/    Includes the disallowance from Section 3.3

                                                                   1
             Annual ACC Jurisdictional Sales of Delivered kWh or kW
                 X % then eligible for access x Applicable CTC
                                       2                   3
                     (cents/kWh or $/kW ) = Annual Recovery

1999    Residential                                   20                 .93
        General Service less than 3MW                 20                2.43
        General Service greater than 3MW              20                2.82
        BHP Copper                                    20                1.54
        Cyprus Copper                                 20                1.34
        Ralston Purina                                20                1.86

2000    Residential                                   20                 .84
        General Service less than 3MW                 20                2.20
        General Service greater than 3MW              20                2.55
        BHP Copper                                    20                1.53
        Cyprus Copper                                 20                1.46
        Ralston Purina                                20                1.98

2001    Residential                                   100                .63
        General Service less than 3MW                 100               1.66
        General Service greater than 3MW              100               1.89
        BHP Copper                                    100               1.06
        Cyprus Copper                                 100               1.05
        Ralston Purina                                100               1.50

2002    Residential                                   100                .56
        General Service less than 3MW                 100               1.46
        General Service greater than 3MW              100               1.72
        BHP Copper                                    100                .95
        Cyprus Copper                                 100                .94
        Ralston Purina                                100               1.34

2003    Residential                                   100                .50
        General Service less than 3MW                 100               1.30
        General Service greater than 3MW              100               1.51
        BHP Copper                                    100                .83
        Cyprus Copper                                 100                .82
        Ralston Purina                                100               1.18

2004    Residential                                   100                .36
        General Service less than 3MW                 100                .94
        General Service greater than 3MW              100               1.09
        BHP Copper                                    100                .61
        Cyprus Copper                                 100                .61
        Ralston Purina                                100                .87

- ----------
1     This formula assumes no change in APS' distribution service territory. In
      the event of any material change (e.g. by purchase, sale, expansion,
      condemnation, etc.) the formula will be adjusted such that APS receives
      the same opportunity to recover the agreed upon level of costs.

2     General Service unmetered loads will have a demand calculated for CTC
      purposes based on contract energy.

3     At the end of 2004 the net present value will be calculated to compare to
      the $350 million.

                                                                          5/7/99

                                    EXHIBIT C



Generation assets include, but are not limited to, APS' interest in the
following generating stations:

         Palo Verde
         Four Corners
         Navajo
         Cholla
         Saguaro
         Ocotillo
         West Phoenix
         Yucca
         Douglas
         Childs
         Irving

Including allocated common and general plant, support assets, associated land,
fuel supplies and contracts, etc. Generation assets will not include facilities
included in APS' FERC transmission rates.

                                    EXHIBIT D
                             AFFILIATE RULES WAIVERS


R14-2-801(5) and R14-2-803, such that the term "reorganization" does not
include, and no Commission approval is required for, corporate restructuring
that does not directly involve the utility distribution company ("UDC") in the
holding company. For example, the holding company may reorganize, form, buy or
sell non-UDC affiliates, acquire or divest interests in non-UDC affiliates,
etc., without Commission approval.

R14-2-804(A)

R14-2-805(A) shall apply only to the UDC

R14-2-805(A)(2)

R14-2-805(A)(6)

R14-2-805(A)(9), (10), and (11)

                       RECISION OF PRIOR COMMISSION ORDERS

Section X.C of the "Cogeneration and Small Power Production Policy" attached to
Decision No. 52345 (July 27, 1981) regarding reporting requirements for
cogeneration information.

Decision No. 55118 (July 24, 1986) - Page 15, Lines 5-1/2 through 13-1/2;
Finding of Fact No. 24 relating to reporting requirements under the abolished
PPFAC.

Decision No. 55818 (December 14, 1987) in its entirety. This decision related to
APS Schedule 9 (Industrial Development Rate) which was terminated by the
Commission in Decision No. 59329 (October 11, 1995).

9th and 10th Ordering Paragraphs of Decision No. 56450 (April 13, 1989)
regarding reporting requirements under the abolished PPFAC.

                                              DOCKET NO. E-01345A-98-0473 ET AL.

                                  ATTACHMENT 2

                         ARIZONA PUBLIC SERVICE COMPANY

                  Informational Unbundling for Standard Offer
                          Proposed Standard Offer Bill

       Sample Summer Bill on Rate E-12 at the Proposed 7/1/99 Rate Level
                    1.5% Overall Residential Class Decrease
           (1.68% decrease in energy charges from 9/1/98 Rate Level)

            The following information is proposed to be shown on the
                            customer's monthly bill:

PAGE 1, STANDARD OFFER BILL CALCULATION:

Your total energy usage this month is:                 991 kWh


Basic Service Charge                                   $  7.50
Charge for kWh used                                     100.09
Regulatory Assessment                                     0.20
Sales Tax                                                 7.06
                                                       -------
                                        TOTAL          $114.85

- --------------------------------------------------------------------------------

PAGE 2, INFORMATIONAL UNBUNDLING:

Your total energy usage for this month is:             991 kWh
Your Standard Offer Bill is (see page 1):                        $114.85

IF YOU CHOOSE TO RECEIVE COMPETITIVE SERVICES FROM
AN ELECTRIC SERVICE PROVIDER, YOUR APS BILL ON
RATE DA-R1 FOR DELIVERY SERVICE WOULD INCLUDE:

          Metering Service:                        $ 1.30
          Meter Reading Service:                     0.30
          Billing Service:                           0.30
          Distribution Service:                     49.30
          System Benefits:                           1.14
          Competitive Transition Charge:             9.22
          Regulatory Assessment:                     0.12
          Sales Tax:                                 4.04
                                                   ------
     TOTAL CHARGES FOR APS DELIVERY SERVICE ONLY:                $ 65.72

          Transmission and Ancillary Services
            billed to your Electric Service
            Provider:                                            $  5.09
          Generation Services:                                   $ 44.04
                                                                 -------

     Shopping Credit to purchase competitively                   $ 49.13  or,
     supplied Generation and Transmission Service,                  4.96  cents/
     including any applicable taxes and regulatory                        kWh
     assessments