UNISOURCE ENERGY CORP
DEF 14A, 2000-03-30
ELECTRIC SERVICES
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                               UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON D.C.  20549
                         SCHEDULE 14A INFORMATION

               Proxy Statement Pursuant to Section 14(a) of the
                     Securities Exchange Act of 1934
                            (Amendment No.  )

Filed by the Registrant     [X]
Filed by a Party other than the Registrant [ ]

Check the appropriate box:

[ ] Preliminary Proxy Statement
[ [ Confidential, for Use of the Commission Only (as permitted by Rule
     14a-6(e)(2))
[X] Definitive Proxy Statement
[ ] Definitive Additional Materials
[ ] Soliciting Material Pursuant to Rule 14a-11(c) or Rule 14a-12

                         UNISOURCE ENERGY CORPORATION
- -------------------------------------------------------------------------------
               (Name of the Registrant as Specified in its Charter)

- -------------------------------------------------------------------------------
   (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[X] No fee required.
[ ] Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

   1)  Title of each class of securities to which transaction applies:

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

   2)  Aggregate number of securities to which transaction applies:

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

   3) Per unit price or other underlying value of transaction computed pursuant
   to Exchange Act Rule 0-11(set forth the amount on which the filing fee is
   calculated and state how it was determined):

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

   4)  Proposed maximum aggregate value of transaction:

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

   5)  Total fee paid:

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

[ ] Fee paid previously with preliminary materials.

[ ] Check box if any part of the fee is offset as provided by Exchange Act Rule
    0-11(a)(2) and idenfity the filing for which the offsetting fee was paid
    previously.  Identify the previous filing by registration statement
    number, or the form or schedule and the date of its filing.

     1)  Amount previously paid:
                                -----------------------------------------------
     2)  Form, Schedule or Registration Statement No.
                                                     --------------------------
     3)  Filing party:
                      ---------------------------------------------------------
     4)  Date filed:
                    -----------------------------------------------------------

<PAGE>




                    UNISOURCE ENERGY CORPORATION

                       220 West Sixth Street
                           P.O. Box 711
                       Tucson, Arizona 85702

                          March 30, 2000

James S. Pignatelli                                 (520) 571-4000
Chairman of the Board


Dear Shareholders:

      You  are  cordially invited to attend the  UniSource  Energy
Corporation 2000 Annual Shareholders Meeting to be held on Friday,
May  12,  2000,  in the first-floor auditorium at Tucson  Electric
Power  Company's Administration Building, 220 West  Sixth  Street,
Tucson, Arizona. The meeting will begin promptly at 10:00 a.m., so
please  plan  to  arrive  earlier. No admission  tickets  will  be
required for attendance at the meeting.

     Directors and officers will be available before and after the
meeting to speak with you. During the meeting, we will answer your
questions  regarding our business affairs and  will  consider  the
matters explained in the enclosed Notice and Proxy Statement.

      We  have  enclosed a proxy card that lists all matters  that
require your vote.  Please vote, sign and return the proxy card as
soon  as  possible, whether or not you plan to attend the meeting.
You  may  also vote by telephone or the Internet, as explained  on
the  proxy  card. If you attend the meeting and wish to vote  your
shares  personally, you may revoke your proxy at that  time.  Your
interest and continued support of UniSource Energy Corporation are
much appreciated.

                                   Sincerely,

                                   UNISOURCE ENERGY CORPORATION

                                   /s/ James S. Pignatelli

                                   James S. Pignatelli
                                   Chairman of the Board, President
                                    and Chief Executive Officer

<PAGE>

               NOTICE OF ANNUAL SHAREHOLDERS MEETING



To the Holders of Common Stock of
UniSource Energy Corporation

      We will hold the Annual Shareholders Meeting ("Meeting")  of
UniSource Energy Corporation ("UniSource Energy") at our corporate
headquarters at 220 West Sixth Street, Tucson, Arizona, on Friday,
May 12, 2000, at 10:00 a.m., Mountain Standard Time. The Meeting's
purpose is to:

     1.  Elect 12 directors for the Board for the ensuing year;
     2.  Approve amendments to our 1994 Omnibus Stock and Incentive
         Plan; and
     3.  Consider any other matters which properly come before the
         Meeting.

      Only shareholders of record of common stock at the close  of
business on March 22, 2000 are entitled to vote at the Meeting.

      We have enclosed our 1999 Annual Report, including financial
statements,  and  the  Proxy Statement  with  this  notice.  Proxy
soliciting  material is first being sent or given to  shareholders
on  March 30, 2000. Your proxy is being solicited by the UniSource
Energy Board of Directors.

      Please vote, sign, date and mail the enclosed proxy as  soon
as  possible in the enclosed return envelope. You may also vote by
telephone  or  the  Internet, as explained on the  enclosed  proxy
card.



                                   Dennis R. Nelson
                                   Corporate Secretary


Dated:  March 30, 2000


                      YOUR VOTE IS IMPORTANT

EACH  SHAREHOLDER  IS  URGED TO COMPLETE, SIGN,  DATE  AND  RETURN
PROMPTLY  THE  ENCLOSED PROXY BY MAIL, OR TO VOTE BY TELEPHONE  OR
THE  INTERNET, AS EXPLAINED ON THE PROXY CARD. IF THE MAIL  OPTION
IS  SELECTED,  USE THE ENCLOSED ENVELOPE, WHICH DOES  NOT  REQUIRE
POSTAGE  IF MAILED IN THE UNITED STATES. RETURNING A SIGNED  PROXY
WILL  NOT  PROHIBIT YOU FROM ATTENDING THE MEETING AND  VOTING  IN
PERSON, IF YOU SO DESIRE.

<PAGE>



                           UNISOURCE ENERGY CORPORATION

                               220 West Sixth Street
                                   P.O. Box 711
                               Tucson, Arizona 85702

                           ANNUAL SHAREHOLDERS MEETING
                                 PROXY STATEMENT

                  ANNUAL MEETING

                  May 12, 2000         UniSource Energy Corporation
                  10:00 a.m., MST      220 West Sixth Street
                                       Tucson, Arizona  85701

                  RECORD DATE

                  March  22,  2000.  If you were a  shareholder  of
                  record  at  the close of business  on  March  22,
                  2000,  you  may  vote at the Annual  Shareholders
                  Meeting  ("Meeting"). Each share is  entitled  to
                  one  vote. In the election of directors, you  may
                  cumulate votes. At the close of business  on  the
                  record  date,  we had 32,365,259  shares  of  our
                  common stock outstanding.

                  AGENDA

                  1.  Proposal One:  Elect 12 directors for the Board
                      for the ensuing year;
                  2.  Proposal Two:  Approve amendments to our 1994
                      Omnibus Stock and Incentive Plan; and
                  3.  Consider any other matters which properly  come
                      before the Meeting and any adjournments.

                  INDEPENDENT AUDITORS

                  Representatives  of  PricewaterhouseCoopers,  LLP
                  are  expected  to be present at the Meeting  with
                  the  opportunity to make a statement  and  to  be
                  available to respond to appropriate questions.

                  PROXIES

 .                     We will follow your voting  instructions.  If
                      none, we  will  vote  signed  proxies for the
                      nominees and Proposal Two.

                  A  form of proxy for execution by shareholders is
                  enclosed.  Unless you tell us on the  proxy  card
                  to   vote   differently,  we  will  vote   signed
                  returned  proxies "for" the Board's nominees  and
                  "for"  Proposal Two. The Board or  proxy  holders
                  will use their discretion on other matters. If  a
                  nominee  cannot or will not serve as a  director,
                  the  Board  or the persons designated as  proxies
                  will  vote  for a person whom they  believe  will
                  carry on our present policies.

                  PROXIES SOLICITED BY

                  The Board of Directors.

                  FIRST MAILING DATE

                  We  anticipate first mailing this Proxy Statement
                  on March 30, 2000.

                  REVOKING YOUR PROXY

                  You  may revoke your proxy before it is voted  at
                  the  Meeting.  To revoke, follow  the  procedures
                  listed on page 3 under "VotingProcedures/Revoking
                  Your Proxy."

                  YOUR COMMENTS

                      We welcome your comments.  The proxy card has
                      room for them.

                  Your  comments about any aspects of our  business
                  are  welcome. You may use the space  provided  on
                  the  proxy  card  for this purpose,  if  desired.
                  Although  we  may  not respond on  an  individual
                  basis,  your  comments help us  to  measure  your
                  satisfaction,  and  we  may  benefit  from   your
                  suggestions.

               PLEASE VOTE - YOUR VOTE IS IMPORTANT
   Prompt return of your proxy will help reduce the costs of
                           re-solicitation.

<PAGE>

                             CONTENTS

Voting Procedures/Revoking Your Proxy.............................2
UniSource Energy Share Ownership..................................3
Proposal One: Election of Directors*..............................7
Board Information.................................................9
Board Compensation...............................................10
Executive Compensation and Other Information**...................11
Officer Change in Control Agreements.............................14
Compensation Committee Report on Executive Compensation..........15
Audit Committee Report...........................................18
Performance Graph**..............................................19
Compensation Committee Interlocks and Insider Participation......19
Proposal Two: Amendment to the UniSource Energy's
  1994 Omnibus Stock and Incentive Plan*.........................19
Submission of Shareholder Proposals..............................24
Other Business...................................................25
- --------------------
*  We expect to vote on these items at the Meeting.
** The Compensation Committee report and the performance graph will
   not be incorporated by reference  into  any  present  or  future
   filings we make with the SEC, even if those reports  incorporate
   all or any part of this Proxy Statement.


               VOTING PROCEDURES/REVOKING YOUR PROXY

                      You can vote by telephone, the Internet, mail, or
                      in person.  We encourage you to vote by telephone
                      or the Internet to help us save money.

                  You  can  vote your shares by telephone, the Internet,
                  mail  or  in  person at the Meeting. Your  proxy  card
                  contains instructions for voting by telephone  or  the
                  Internet,  which are the least expensive  and  fastest
                  methods of voting. To vote by mail, complete and  sign
                  your  proxy  card, or your broker's voting instruction
                  card  if  your  shares are held by  your  broker,  and
                  return it in the enclosed return envelope.

                  Under  Arizona law, a majority of the shares  entitled
                  to  vote  on  any single matter which may  be  brought
                  before  the Meeting will constitute a quorum. Business
                  may  be conducted once a quorum is represented at  the
                  Meeting.  Except as otherwise specified by law  or  in
                  our  Articles of Incorporation or Bylaws, if a  quorum
                  exists, action on a matter other than the election  of
                  directors will be deemed approved if the votes cast in
                  favor of the matter exceed votes cast against it.

                      Proposal Two must be approved  by  a  majority  of
                      shareholders voting.

                  Thus,  if  a  quorum  exists,  Proposal  Two  must  be
                  approved  by  a  majority  of  the  shareholders   who
                  actually vote. Any broker "non-votes" with respect  to
                  Proposal   Two  will  be  counted  for   purposes   of
                  determining  the presence or absence of a quorum,  but
                  will  not be counted as shares represented and  voting
                  on  the proposal. In contrast, proxies voted "abstain"
                  will  have  the  same  legal effect  as  shares  voted
                  against the proposal.

                  Directors are elected by a plurality of the votes cast
                  by the shares entitled to vote if a quorum is present.
                  A  plurality  means  receiving the largest  number  of
                  votes,  regardless  of whether  that  is  a  majority.
                  Withheld votes will be counted as being represented at
                  the  Meeting for quorum purposes but will not have  an
                  effect on the vote.

                      You may cumulate your votes for directors.

                  In the election of directors, each of our common stock
                  shareholders  has the right to cumulate his  votes  by
                  casting  as many votes in the aggregate equal  to  the
                  number of his shares of common stock multiplied by the
                  number of directors to be elected. He may cast all  of
                  such  votes  for one nominee or distribute such  votes
                  among two or more nominees.

                      You can change your mind after sending in a proxy
                      by following these procedures.

                  Any  shareholder giving a proxy has a right to  revoke
                  that  proxy  by giving notice to UniSource  Energy  in
                  writing  directed to the Corporate Secretary,  at  220
                  West  Sixth  Street,  P.O. Box  711,  Tucson,  Arizona
                  85702,  or in person at the Meeting at any time before
                  the  proxy  is exercised. Those who fail to  return  a
                  proxy  or  attend the Meeting will not  count  towards
                  determining   any  required  plurality,  majority   or
                  quorum.

                  The  shares represented by an executed proxy  will  be
                  voted  for the election of directors and for  Proposal
                  Two, or withheld in accordance with the specifications
                  in  the  proxy.  If no specification is  made  in  the
                  proxy,  the  proxy  will  be voted  in  favor  of  the
                  nominees and Proposal Two as set forth herein.

                  PROXY SOLICITATION

                  We  will  bear the entire cost of the solicitation  of
                  proxies. Solicitations will be made primarily by mail.
                  Additional  solicitation of brokers, banks,  nominees,
                  and institutional investors may be made pursuant to  a
                  special engagement of Beacon Hill Partners, Inc., at a
                  cost  of  approximately $3,000 plus reasonable out-of-
                  pocket  expenses. Solicitations may also  be  made  by
                  telephone,   facsimile,  or  personal  interview,   if
                  necessary,  to  obtain  reasonable  representation  of
                  shareholders at the Meeting. Our employees may solicit
                  proxies  for  no  additional  compensation.  We   will
                  request  brokers  or other persons  holding  stock  in
                  their  names,  or in the names of their  nominees,  to
                  forward  proxy materials to the beneficial  owners  of
                  such  stock or request authority for the execution  of
                  the  proxies.  We  will reimburse  brokers  and  other
                  persons  for reasonable expenses they incur in sending
                  these  proxy materials to you if you are a  beneficial
                  holder of our shares.

                              UNISOURCE ENERGY SHARE OWNERSHIP

                  SECURITY OWNERSHIP OF MANAGEMENT

                  The   following  table  sets  forth  the  number   and
                  percentage  of  shares beneficially owned  as  of  the
                  Record Date, and the nature of such ownership by  each
                  of   our  directors,  nominees,  the  Chief  Executive
                  Officer,   the  four  other  most  highly  compensated
                  executive officers during 1999, and all directors  and
                  officers  as  a group. Ownership includes  direct  and
                  indirect  (beneficial) ownership, as  defined  by  SEC
                  rules.

<TABLE>
<CAPTION>
                                                                           Allocable Amount of
                                       Amount and                         Shares Under Deferred
               Name and                 Nature of                          Compensation Stock
 Title         Title of                Beneficial        Percent          Plan and Restricted
of Class   Beneficial Owner           Ownership (1)      of Class        Stock Unit Account (2)
- --------   ----------------           -------------      --------        ---------------------
<S>        <C>                        <C>                  <C>                  <C>
Common     James  S.  Pignatelli      75,924 (3)(4)         *                   108,362
           Chairman, President
           and CEO

Common     Ira R. Adler               51,506 (5)(6)         *                    23,272
           Executive Vice President,
           Chief Financial Officer,
           Treasurer, and Director

Common     Lawrence  J. Aldrich        1,500                *                     ----
           Director Nominee

Common     Larry W. Bickle             3,467 (7)            *                     ----
           Director

Common     Elizabeth T. Bilby          5,367 (8)            *                     2,540
           Director

Common     Harold  W.  Burlingame      3,967 (7)            *                     ----
           Director

Common     Jose L. Canchola            7,267 (8)            *                       404
           Director

Common     John L. Carter             10,867 (9)            *                     5,804
           Director

Common     Daniel W.  L. Fessler       2,334 (7)            *                     ----
           Director

Common     John A. Jeter               9,067 (8)            *                     2,657
           Director

Common     R. B. O'Rielly             15,647 (8)            *                     3,951
           Director

Common     Martha R. Seger             6,854 (8)            *                     2,112
           Director

Common     H. Wilson Sundt             7,067 (8)(10)        *                     1,823
           Director

Common     Dennis R. Nelson           40,408 (11)(12)       *                    21,031
           Vice President
           General Counsel and
           Corporate Secretary

Common     Steven J. Glaser           27,726 (13)(14)       *                    24,678
           Vice President
           Energy Services
           Tucson Electric Power
           Company

Common     Karen G. Kissinger         30,022 (15)(16)       *                     ----
           Vice President,
           Controller and
           Principal Accounting
           Officer

Common    All directors and          422,318 (17)          1.3%                 294,393
          executive officers as
          a group

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

*   Represents less than l% of the outstanding common stock of UniSource Energy.

   (1)  Amounts include the following:
        --  Any shares held in the name of the spouse, minor children, or
            other relatives sharing the home of the director or officer. Except
            as otherwise indicated below, the directors, nominees for director,
            and officers have sole voting and investment power over the shares
            shown. Voting power includes the power to direct the voting of the
            shares held, and investment power includes the power to direct the
            disposition of the shares held;
        --  Shares subject to options exercisable within 60 days, based on
            information from directors and officers; and
        --  Equivalent share amounts allocated to the individuals' Triple
            Investment Plan (401(k)) ("TIP") which, since June 1, 1998 has
            included a UniSource Energy Stock fund election option.
   (2)  Amounts include the following:
        --  Shares held in trust under the Deferred Compensation Plan.
            With the cash compensation deferred, the trust invests in UniSource
            Energy common stock quarterly. Distributions under the Deferred
            Compensation Plan are made in common stock. Until the common stock
            is distributed, directors and officers are not the beneficial
            owners of such shares. The number of shares set forth includes
            shares purchased through the last quarterly purchase on January 14,
            2000; and
        --  The allocable amount of deferred shares in the participant's
            Restricted Stock Unit Account (see Summary Compensation Table).
   (3)  Includes  60,031  shares subject  to  options  exercisable
        within 60 days.
   (4)  Includes 10,173 shares purchased under TIP UniSource Energy
        Stock Fund.
   (5)  Includes  40,933  shares subject  to  options  exercisable
        within 60 days.
   (6)  Includes 5,531 shares purchased under TIP UniSource Energy
        Stock Fund.
   (7)  Includes  1,467  shares  subject  to  options  exercisable
        within 60 days.
   (8)  Includes  5,067  shares  subject  to  options  exercisable
        within 60 days.
   (9)  Includes  3,867  shares  subject  to  options  exercisable
        within 60 days.
  (10)  Includes 1,000 shares held by a corporation with which Mr.
        Sundt is associated.
  (11)  Includes  28,113  shares subject  to  options  exercisable
        within 60 days.
  (12)  Includes 8,871 under TIP UniSource Energy Stock Fund.
  (13)  Includes  21,793  shares subject  to  options  exercisable
        within 60 days.
  (14)  Includes 2,924 shares purchased under TIP UniSource Energy
        Stock Fund.
  (15)  Includes 1,123 shares purchased under TIP UniSource Energy
        Stock Fund.
  (16)  Includes  21,375  shares subject  to  options  exercisable
        within 60 days.
  (17)  Includes  314,051  shares subject to  options  exercisable
        within  60  days,  38,800 shares purchased under  TIP  UniSource
        Energy  Stock  Fund, and 5,527 restricted stock grants  pursuant
        to the 1997 TEP Officer Restricted Stock Awards.

</TABLE>


                  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS

                  As of the Record Date, we knew the following companies
                  to  be  the beneficial owners of more than 5%  of  the
                  outstanding shares of our common stock:

<TABLE>
<CAPTION>

                                                        Amount and
                    Name and Address                     Nature of             Percent
Title  of Class    of Beneficial Owner             Beneficial Ownership       of Class
- ---------------    -------------------             --------------------       --------

<S>                <C>                                 <C>                    <C>
Common             Heartland Advisors, Inc.            2,845,300 (1)           8.80%
                   789 North Water Street
                   Milwaukee, WI 53202

Common             T. Rowe Price Associates, Inc.      1,845,100 (2)           5.70%
                   100 E. Pratt Street
                   Baltimore, MD 21202

Common             The Prudential Insurance            1,816,760 (3)           5.62%
                   Company of America
                   751 Broad Street
                   Newark, NJ  07102-3777

Common             Ballentine Capital Management, Inc. 1,757,700 (4)           5.40%
                   10 Avon Meadow Lane
                   Avon, CT 06001

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

(1) In a statement dated February 3, 2000, filed with the SEC on Schedule
    13G/A under the Securities Exchange Act of 1934, as amended  (the
    "Exchange  Act"),  Heartland Advisors, Inc. indicated  it  has  a
    sole  voting  power  over 1,667,000 shares and  sole  dispositive
    power  over  2,845,300  shares of our outstanding  common  stock,
    which   are  held  in  investment  advisory  accounts.  Heartland
    Advisors,  Inc.  is  a registered investment advisor  as  defined
    under Section 203 of the Investment Advisors Act of 1940.
(2) In  a statement dated February 14, 2000, filed with the SEC on
    Schedule  13G  under the Exchange Act, T. Rowe Price  Associates,
    Inc.  ("Price  Associates") indicated it has a sole voting  power
    over  904,900  shares and sole dispositive power  over  1,845,100
    shares  of  our  outstanding common stock. These  securities  are
    owned  by  various  individual  and institutional  investors  for
    which  Price Associates serves as investment advisor  with  power
    to  direct  investments and/or sole power to vote the securities.
    For  purposes of the reporting requirements of the Exchange  Act,
    Price  Associates  is  deemed  to be  beneficial  owner  of  such
    securities; however Price Associates expressly disclaims that  it
    is, in fact, the beneficial owner of such securities.
(3) In a statement dated January 31, 2000, filed with the SEC on Schedule
    13G/A  under  the Exchange Act, the Prudential Insurance  Company
    of  America  indicated  it  may have direct  or  indirect  voting
    and/or  investment  discretion  over  1,816,760  shares  of   our
    outstanding  common stock which are held for the benefit  of  its
    clients  by  its separate accounts, externally managed  accounts,
    registered   investment  companies,  subsidiaries  and/or   other
    affiliates.
(4) In a statement dated February 3, 2000, filed with the SEC on Schedule
    13G/A  under  the  Exchange Act, Ballentine  Capital  Management,
    Inc.,  indicated  that  it has sole voting and  sole  dispositive
    power  over  1,757,700  shares of our  outstanding  common  stock
    which  are  directly held in managed accounts to which Ballentine
    Capital Management serves as investment advisor.

</TABLE>


                  Section 16(A) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

                  Section  16(a) of the Exchange Act and SEC regulations
                  require  directors, certain officers, and persons  who
                  own  greater than 10% of our stock to file reports  of
                  ownership and changes in ownership of such stock  with
                  the  SEC  and  the  New  York  Stock  Exchange.  These
                  directors,  officers and greater than  10%  beneficial
                  owners  are required by law to furnish us with  copies
                  of all forms they file under Section 16(a).

                  Based  solely on a review of the copies of such  forms
                  furnished to us and on written representations of  our
                  directors  and officers, we believe that  all  Section
                  16(a)  filing requirements applicable to our directors
                  and  officers were complied with during 1999, with the
                  exception  of  Mr. R. B. O'Rielly, a UniSource  Energy
                  director who inadvertently failed to timely file forms
                  for  the acquisitions of 10,000 and 300 shares of  our
                  common  stock which he made during 1999 and Mr. Daniel
                  W.L.   Fessler,  a  UniSource  Energy   director   who
                  inadvertently  failed to timely file a  form  for  the
                  acquisition  of  440 shares of our common  stock.  Mr.
                  O'Rielly's and Mr. Fessler's acquisitions subsequently
                  have been submitted to the SEC on a separate Form 5s.

                          PROPOSAL 1:  ELECTION OF DIRECTORS

                  GENERAL

                      We will elect 12 directors this year.

                  At  the  Meeting, the shareholders will  elect  twelve
                  directors to serve on our Board of Directors  for  the
                  ensuing  year and until their successors  are  elected
                  and  qualified.  The  shares represented  by  executed
                  proxies in the form enclosed, unless withheld, will be
                  voted for the twelve nominees listed below, or, in the
                  discretion of the persons acting as proxies,  will  be
                  voted  cumulatively for one or more of such  nominees.
                  All of the current nominees are present members of the
                  Board of Directors except Lawrence J. Aldrich. All  of
                  the  nominees have consented to serve if  elected.  If
                  any  nominee becomes unavailable for any reason  or  a
                  vacancy  should occur before the election, it  is  the
                  intention  of  the persons designated  as  proxies  to
                  vote, in their discretion, for other nominees.

                  BOARD NOMINEES

        James S.  Chairman of the Board of Directors, President and Chief
      Pignatelli  Executive Officer of UniSource Energy since July  1998;
                  Senior  Vice President and Chief Operating  Officer  of
                  UniSource  Energy  from December  1997  to  July  1998;
                  Chairman  of  Board of Directors, President  and  Chief
                  Executive  Officer of Tucson Electric Power Company,  a
                  wholly-owned  subsidiary  of UniSource  Energy  ("TEP")
                  since  July  1998; Executive Vice President  and  Chief
                  Operating Officer of TEP from March 1998 to July  1998;
                  Senior  Vice President and Chief Operating  Officer  of
                  TEP  from  1996  until 1998; Senior Vice  President  of
                  Business Development of TEP from 1994 to 1996; Chairman
                  of   the  Board  of  Directors,  President  and   Chief
                  Executive Officer of Millennium Energy Holdings,  Inc.,
                  a   wholly   owned   subsidiary  of  UniSource   Energy
                  ("Millennium"),   since  1997.  President   and   Chief
                  Executive   Officer  of  Mission  Energy   Company,   a
                  subsidiary of SCE Corp., from 1988 to 1993; Director of
                  INNCOM International, Inc. Age 56.

    Ira R. Adler  Director of UniSource Energy since July 1998; Executive
                  Vice  President, Chief Financial Officer and  Treasurer
                  of  UniSource Energy since July 1998; Director  of  TEP
                  since  1998;  Chief Operating Officer of Generation  of
                  TEP  since 1999; Executive Vice President of TEP  since
                  March  1998; Chief Financial Officer of TEP since 1990;
                  Senior  Vice  President  of  TEP  from  1990  to  1998;
                  Director  of Millennium since 1998; Vice President  and
                  Chief  Financial Officer of Millennium from April  1998
                  to November 1998. Age 49.

     Lawrence J.  Principal,  Tucson  Ventures Group, a  venture  capital
         Aldrich  company,  since  February  2000;  President  and  Chief
                  Executive  Officer  of Tucson Newspapers  from  January
                  1992 to February 2000. Age 47.

        Larry W.  Managing  Director  of  Haddington  Ventures,  LLC,  an
          Bickle  investment  company,  since 1997;  Chairman  and  Chief
       (2)(3)(4)  Executive  Officer of TPC Corporation  (formerly  Tejas
                  Power Corporation) from 1982 to May 1997; Director, St.
                  Mary Land & Exploration Company; Director, Western  Hub
                  Properties.  Director of Millennium since  1998.  Board
                  member since 1998. Age 54.

    Elizabeth T.  President and Treasurer of Gourmet Products,  Inc.,  an
           Bilby  agricultural  product  marketing company;  Director  of
    (1)(2)(3)(4)  Marketing  of Green Valley Pecans since 1982.  Director
                  of  TEP since 1995; Director of Millennium since  1998.
                  Board member since 1995. Age 60.

       Harold W.  Executive  Vice  President,  Merger  &  Joint   Venture
      Burlingame  Integration  of  AT&T since March 1999; Executive  Vice
       (1)(2)(3)  President of Human Resources of AT&T from 1987 to March
                  1999; Chairman of the AT&T Foundation; Director of  TEP
                  since 1998. Board member since 1998. Age 59.

         Jose L.  Chairman  of  Canchola Foods, Inc., holder  of  several
        Canchola  restaurant  franchises in Tucson and Nogales,  Arizona,
       (2)(3)(4)  since  1976; Member of McDonald's Corporation Operators
                  Advisory  Board  from 1981 to 1993; National  Franchise
                  Director,  U.S.  Department  of  Commerce,  Office   of
                  Minority   Business  Enterprise  from  1974  to   1976;
                  Director  of Millennium since 1998. Board member  since
                  1992. Age 68.

  John L. Carter  Executive Vice President and Chief Financial Officer of
          (2)(4)  Burr-Brown Corporation from 1993 to 1996; President and
                  Chief  Executive Officer of Qualtronics  Manufacturing,
                  Inc.  from  1987 to 1996; Director of TEP  since  1996;
                  Director  of Millennium since 1998. Board member  since
                  1996. Age 65.

     Daniel W.L.  Partner  in  the  law firm of LeBoeuf, Lamb,  Greene  &
         Fessler  MacRae   L.L.P.  since  1997;  Member  of  the  Harvard
          (1)(4)  Electricity  Policy  Group since 1994;  Member  of  the
                  American  Law Institute since 1985; Professor  of  Law,
                  University  of  California, Davis from  1970  to  1995;
                  President of the California Public Utilities Commission
                  from  1991  to  1996; Commissioner  of  the  California
                  Transportation  Commission from 1991 to 1995;  Director
                  of TEP since 1998. Board member since 1998. Age 58.

   John A. Jeter  Independent business consultant since 1991; partner  in
       (1)(2)(3)  the  accounting firm of Arthur Andersen & Co. from 1967
                  to  1991;  Director  of  TEP since  1994;  Director  of
                  Millennium since 1998. Board member since 1994. Age 68.

       Martha R.  Consultant, Martha R. Seger and Associates Economic and
           Seger  Financial Consulting; John M. Olin Distinguished Fellow
       (1)(2)(4)  at  the  Karl  Eller Center for the  Study  of  Private
                  Market  Economy at the University of Arizona from  1991
                  to  1993;  Financial  Economist  and  Governor  of  the
                  Federal  Reserve System from 1984 to 1991; Director  of
                  Xerox  Corporation, Kroger Company, Fluor  Corporation,
                  and Amerisure; Director of TEP since 1992. Board member
                  since 1992. Age 68.

       H. Wilson  Retired  Chairman  of  the Board, The  Sundt  Companies
           Sundt  Inc.; Chairman of the Board and Chief Executive Officer
          (2)(3)  of Sundt Corp, a general construction contracting firm,
                  from  1979 to December 1998, having served as President
                  from  1979  to 1983; Director of Magma Copper  Company,
                  October  1987  to January 1996. Director of  Millennium
                  since 1998. Board member since 1976. Age 67.

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

(1)  Member of the Nominating Committee. Mr. Fessler was elected
     to this Committee effective July 1, 1999.
(2)  Member of the Audit Committee. Mr. Canchola served on this
     Committee  through June 30, 1999. Dr. Seger was  elected  to  the
     Audit Committee effective July 1, 1999.
(3)  Member of the Compensation Committee.
(4)  Member of the Finance Committee. Dr. Seger was elected  to
     the Finance Committee effective July 1, 1999.

            The Board recommends that you vote "FOR" these nominees.

                                     BOARD INFORMATION

                  BOARD MEETINGS

                  In  1999,  the  Board  held a  total  of  six  regular
                  meetings. Each director attended at least 75%  of  his
                  or her Board and committee meetings.

                  BOARD COMMITTEES

                  The  Audit  Committee selects and  recommends  to  the
                  Board  of  Directors  a firm of independent  certified
                  public  accountants  to audit annually  our  financial
                  statements;  reviews and discusses the scope  of  such
                  audit;  receives  and reviews the  audit  reports  and
                  recommendations; transmits its recommendations to  the
                  Board   of  Directors;  reviews  our  accounting   and
                  internal  control procedures with our  internal  audit
                  department    from   time   to   time,    and    makes
                  recommendations  to  the Board of  Directors  for  any
                  changes  deemed  necessary  in  such  procedures;  and
                  performs  such other functions delegated by the  Board
                  of  Directors. Our Audit Committee held four  meetings
                  in  1999  and was in full compliance with its  written
                  charter.

                  The Compensation Committee reviews the performance  of
                  our  directors  and officers and makes recommendations
                  to  the  Board of Directors with respect to directors'
                  and officers' compensation. Our Compensation Committee
                  held four meetings in 1999.

                  The  Finance Committee reviews and recommends  to  the
                  Board  of Directors long-range financial policies  and
                  objectives,  and  actions required  to  achieve  those
                  objectives.   Specifically,  the   Finance   Committee
                  reviews  capital  and operating budgets,  current  and
                  projected  financial results of operations, short-term
                  and  long-range financing plans, dividend policy, risk
                  management  activities, and major commercial  banking,
                  investment  banking, financial consulting,  and  other
                  financial  relations of UniSource Energy. Our  Finance
                  Committee held three meetings in 1999.

                  The    Nominating   Committee   interviews   potential
                  directors,   nominates   and   recommends    to    the
                  shareholders  and  directors,  as  the  case  may  be,
                  qualified   persons   to  serve  as   directors.   The
                  Nominating Committee held one meeting in 1999. At such
                  times  as  director  vacancies occur,  the  Nominating
                  Committee  will consider written recommendations  from
                  shareholders for the Board of Directors. The  deadline
                  for  consideration of recommendations for next  year's
                  Annual  Meeting of Shareholders is November 30,  2000.
                  Recommendations  must  include  detailed  biographical
                  material indicating the candidate's qualifications and
                  a  written statement from the candidate of willingness
                  and  availability to serve. Recommendations should  be
                  directed to the Corporate Secretary, UniSource  Energy
                  Corporation, P.O. Box 711, Tucson, Arizona 85702.

                                 BOARD COMPENSATION

                  RETAINER AND FEES

                  Each  non-employee director received a $17,500  annual
                  cash  retainer, $1,000 for each Board meeting,  $1,000
                  for  each  committee meeting and $1,500 as chairperson
                  for  each  committee  meeting  attended  in  1999.  We
                  reimburse directors for any expenses related to  their
                  Board service.

                  OPTION GRANTS

                  Non-employee   directors  also  receive   options   to
                  purchase  2,000 shares of our common stock  when  they
                  become directors and another 2,000 for each year  they
                  serve  as  director thereafter. The exercise price  of
                  the options is the fair market value of our shares  on
                  the  grant date. These are grants of UniSource  Energy
                  common  stock options under the 1994 Outside  Director
                  Stock  Option Plan which vest in one-third  increments
                  on the grant date anniversary and expire in ten years.
                  This  year,  options  were  granted  to  each  of  the
                  directors on January 3, 1999, at an exercise price  of
                  $13.3125.

<TABLE>
<CAPTION>

                    DIRECTOR COMPENSATION FOR LAST FISCAL YEAR

                                 Cash Compensation               Security Grants
                                 -----------------               ---------------

                                                                          Number of
                                                              Number     Securities
                      Annual Retainer                          of        Underlying
Name (1)                Fee ($) (2)     Meeting Fees ($)(2)   Shares  Options/SARs (3)
- --------              ---------------   -------------------   ------  ----------------

<S>                        <C>                <C>               <C>        <C>
Larry W. Bickle            17,500             28,000             -         2,000
Elizabeth T. Bilby         17,500             30,000             -         2,000
Harold W. Burlingame       17,500             22,000             -         2,000
Jose L. Canchola           17,500             26,000             -         2,000
John L. Carter             17,500             30,500             -         2,000
Daniel W. L. Fessler       17,500             25,000             -         2,000
John A. Jeter              17,500             31,000             -         2,000
R.B. O'Rielly              17,500             21,500             -         2,000
Martha R. Seger            17,500             21,000             -         2,000
H. Wilson Sundt            17,500             26,000             -         2,000

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

(1)  Mr.  Pignatelli and Mr. Adler are not listed in  the  above
     table  because directors who are salaried employees of  UniSource
     Energy  do not receive compensation in their capacity as  members
     of  the  Board.  Refer  to  the Summary  Compensation  Table  for
     information concerning their compensation.
(2)  Cash  compensation includes amounts earned but deferred  at
     the election of directors.
(3)  Grants  of UniSource Energy common stock options under  the
     1994 Outside Director Stock Option Plan.

</TABLE>

<PAGE>


                     EXECUTIVE COMPENSATION AND OTHER INFORMATION

                  SUMMARY OF COMPENSATION

                  The  following  table summarizes the compensation  and
                  stock   option  grants  to,  and  stock  options/stock
                  appreciation  rights  ("SARs")  held  by   our   Chief
                  Executive  Officer  and  our four  other  most  highly
                  compensated  executive officers at December  31,  1999
                  ("Named Executives").

<TABLE>
<CAPTION>
                                      SUMMARY COMPENSATION TABLE


                                                                    Long Term
                                   Annual Compensation         Compensation Awards
                                   -------------------         -------------------

                                                         Restricted    Securities
                                                           Stock        underlying  All Other
     Name and                                             Awards        Options/   Compensation
Principal Position       Year   Salary ($)   Bonus ($)    ($) (1)       SARs (#)     ($) (2)
- ------------------       ----   ----------   ---------   ----------    ----------- ------------

<S>                      <C>     <C>          <C>        <C>            <C>          <C>
James S. Pignatelli      1999    450,008      272,800     1,200,005      114,500      7,200
President and Chief      1998    410,050      216,004          -          58,246      7,200
Executive Officer        1997    307,924      186,001        67,524       16,800      7.200

Ira R. Adler             1999    299,988      135,000       225,010       31,800      7,200
Executive Vice           1998    297,614      125,995          -          17,700      7,200
President,               1997    244,558      147,001        83,853       13,300      7,200
Chief Financial
Officer and
Treasurer

Dennis R. Nelson         1999    214,769       67,500       225,010       18,200      7,200
Vice President,          1998    206,693       72,000          -           8,800      7,200
General Counsel          1997    179,595       90,001        61,605        8,400      7,200
and Corporate Secretary

Steven J. Glaser         1999    180,000       64,800       283,760       11,450      7,200
Vice President           1998    186,174       54,000          -           8,000      7,200
Energy Services (TEP)    1997    164,423       82,500        35,935        7,700      7,200

Karen G. Kissinger       1999    170,000       56,100        90,009       10,800      7,200
Vice President,          1998    175,789       51,000          -           7,400      7,200
Controller and Principal 1997    154,019       77,500        53,043        7,200      7,200
Accounting Officer

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

(1)  Award amount represents the fair market value of the restricted stock units on
     the grant date.  The restrictions on the 1997 grants lapse over a three-year period
     in one-third increments on each anniversary date of the grant.  The restrictions on
     the 1999 grants lapse over a two-year period in one-half increments on each anniversary
     date of the grant.  Recipients are entitled to receive shares of stock after the
     restrictions have lapsed, but may elect to defer receipt of such stock to a future
     period.  The restricted stock units are not entitled to dividends.  As of December 31,
     1999, based on the closing market price of UniSource Energy's stock on that date of
     $11.1875, James S. Pignatelli 105,201 restricted stock units valued at $1,176,936;
     Ira R. Adler held 24,657 restricted stock units valued at $275,850; Dennis R. Nelson held
     23,116 restricted stock units valued at $258,610; Steven J. Glaser held 26,338 restricted
     stock units valued at $294,656; and Karen G. Kissinger held 7,540 restricted stock units
     valued at $84,354 and 1,224 shares of restricted stock valued at $13,693.
(2)  All Other Compensation is comprised of UniSource Energy's contributions to the TIP.

</TABLE>

<PAGE>

                  STOCK OPTIONS GRANTS IN 1999

                  During  1999, the Compensation Committee of our  Board
                  of Directors granted stock options intended to qualify
                  as  incentive stock options under the Internal Revenue
                  Code  of  1986,  as  amended, to most  employees.  The
                  options have exercise prices equal to the market price
                  of  the common stock at the date of grant. The options
                  vest  ratably over a three-year period. The  aggregate
                  number  of  shares attributable to the 1999 grants  is
                  606,243.

                  The  following table includes our 1999 grants of stock
                  options  and SARs to the Named Executives. The amounts
                  shown   as   potential  realizable  values   rely   on
                  arbitrarily assumed increases in value required by the
                  SEC. In assessing those amounts, please note that  the
                  ultimate value of the options, as well as your shares,
                  depends   on   actual  future  share  prices.   Market
                  conditions  and  the  efforts of  the  directors,  the
                  officers  and others to foster the future  success  of
                  UniSource  Energy  can influence  those  future  share
                  values.

<TABLE>
<CAPTION>

                                  OPTION/SAR GRANTS IN LAST FISCAL YEAR
                                            Individual Grants

                                                                                Potential
                                      Percent of                           Realizable Value at
                      Number of    Total Options/                         Assumed Annual Rates
                     Securities          SARs                                of Stock Price
                     Underlying       Granted to    Exercise                Appreciation for
                     Options/SARs     Employees       Price    Expiration      Option Term
Name                  Granted (#)  in Fiscal Year     ($/Sh)      Date      5% ($)    10%($)
- ----                 ------------  --------------   --------   ----------   ------    ------

<S>                    <C>              <C>          <C>         <C>        <C>      <C>
James S. Pignatelli     114,500         18.9%        12.2812     7/16/09    884,350   2,241,116

Ira R. Adler             31,800          5.2%        12.2812     7/16/09    245,610     622,423

Dennis R. Nelson         18,200          3.0%        12.2812     7/16/09    140,569     356,230

Steven J. Glaser         11,450          1.9%        12.2812     7/16/09     88,435     224,112

Karen G. Kissinger       10,800          1.8%        12.2812     7/16/09     83,415     211,389


</TABLE>


                  1999 OPTION AND SAR HOLDINGS

                  The  following table includes the number and value  of
                  exercisable and non-exercisable options and SARs  held
                  by  the  Named Executives as of December 31, 1999.  At
                  December  31,1999, none of the options  were  "in  the
                  money," meaning a positive difference between the year-
                  end  share  price of $11.1875 and the exercise  price.
                  The  options might never be exercised, and the  value,
                  if any, will depend on the share price on the exercise
                  date.

<PAGE>

<TABLE>
<CAPTION>

                                 AGGREGATED OPTION/SAR EXERCISES IN
                       LAST FISCAL YEAR AND FISCAL YEAR-END OPTION/SAR VALUES


                                              Number of Securities
                                                   Underlying
                                                   Unexercised       Value of Unexercised
                       Shares                    Options/SARs at         In-the-Money
                      Acquired                 Fiscal Year-End (#)  Options/SARs at Fiscal
                    on Exercise     Value          Exercisable/    Year End ($) Exercisable/
      Name               (#)      Realized ($)    Unexercisable          Unexercisable
      ----          -----------   ------------    -------------    -------------------------

<S>                     <C>          <C>          <C>                        <C>
James S. Pignatelli      --           --          60,032/158,930             0/0

Ira R. Adler             --           --          40,933/48,034              0/0

Dennis R.Nelson          --           --          28,113/26,866              0/0

Steven J. Glaser         --           --          21,793/19,350              0/0

Karen G. Kissinger       --           --          21,375/18,133              0/0


</TABLE>

                  PENSION PLANS

                  The   following  table  shows  the  estimated   annual
                  retirement benefit payable to participants,  including
                  the  Named Executives, for the average annual earnings
                  and  years  of  service  indicated.  Remuneration   is
                  comprised of the officers' average annual compensation
                  during  the five consecutive years of employment  with
                  the  highest  compensation within the  last  15  years
                  preceding  retirement. Compensation  is  comprised  of
                  salary and bonus, as shown on the Summary Compensation
                  Table.

                  The  amount of the pension benefit is equal to a  base
                  of  40%  of the compensation for 25 years of  service,
                  plus  9.7%  of  such calculated amount. The  estimated
                  benefits  shown in the Pension Plan Table are straight
                  life  annuities  not subject to a  reduction  for  any
                  Social  Security  benefits. The  table  also  reflects
                  amounts  payable under the Excess Benefits Plan  which
                  will  pay  from the general funds of UniSource  Energy
                  the  difference,  if any, between the  benefits  under
                  UniSource  Energy's  pension  plan  and  any   benefit
                  payments  which may be limited by federal  income  tax
                  regulations.

<TABLE>
<CAPTION>
                                          PENSION PLAN TABLE

                                           Years of Service
                        --------------------------------------------------------

  Remuneration ($)        10        15        20        25        30        35
  ----------------        --        --        --        --        --        --
  <S>                  <C>       <C>       <C>       <C>       <C>       <C>
  125,000               54,850    54,850    54,850    54,850    54,850    54,850
  150,000               65,820    65,820    65,820    65,820    65,820    65,820
  175,000               76,790    76,790    76,790    76,790    76,790    76,790
  200,000               87,760    87,760    87,760    87,760    87,760    87,760
  225,000               98,730    98,730    98,730    98,730    98,730    98,730
  250,000              109,700   109,700   109,700   109,700   109,700   109,700

  Remuneration ($)        10        15        20        25        30        35
  ----------------        --        --        --        --        --        --

  300,000              131,640   131,640   131,640   131,640   131,640   131,640
  400,000              175,520   175,520   175,520   175,520   175,520   175,520
  450,000              197,460   197,460   197,460   197,460   197,460   197,460
  500,000              219,400   219,400   219,400   219,400   219,400   219,400
  550,000              241,340   241,340   241,340   241,340   241,340   241,340
  600,000              263,280   263,280   263,280   263,380   263,280   263,280
  650,000              285,220   285,220   285,220   285,220   285,220   285,220

</TABLE>

The  estimated  credited years of service for  UniSource  Energy's
Named Executives are as follows:



                                            Credited
                     Name               Years of Service
                     ----               ----------------

                 James S. Pignatelli            5
                 Ira R. Adler                  14
                 Dennis R. Nelson              22
                 Steven J. Glaser              10
                 Karen G. Kissinger             9


                  OFFICER CHANGE IN CONTROL AGREEMENTS

                      Change in Control Agreements were adopted to attract
                      and retain quality management.

                  TEP  has  Change  in Control Agreements ("Agreements")
                  with all of its officers. The Agreements are in effect
                  until  the  latter of: (i) five years after  the  date
                  either  TEP  or  the officer gives written  notice  of
                  termination of the Agreement; or (ii) if a  change  in
                  control occurs during the term of the Agreement,  five
                  years after the change of control. For the purpose  of
                  the  Agreements,  a  change in  control  includes  the
                  acquisition  of beneficial ownership  of  30%  of  the
                  common  stock of UniSource Energy, certain changes  in
                  the  UniSource Energy Board of Directors, approval  by
                  the shareholders of certain mergers or consolidations,
                  or  certain  transfers  of  the  assets  of  UniSource
                  Energy. The Agreements provide that each officer shall
                  be  employed  by  TEP  or one of its  subsidiaries  or
                  affiliates  in a position comparable to their  current
                  position, with compensation and benefits which are  at
                  least  equal  to  their then current compensation  and
                  benefits, for an employment period of five years after
                  a  change  in  control (subject to earlier termination
                  due  to  the  officer's acceptance of a position  with
                  another company or termination for cause).

                  Following a change in control, in the event  that  the
                  officer's  employment is terminated by TEP  (with  the
                  exception   of   termination  due  to  the   officer's
                  acceptance  of another position or for cause),  or  if
                  the  officer  terminates his employment because  of  a
                  reduction in position, responsibility, salary  or  for
                  certain  other stated reasons, the officer is entitled
                  to  severance benefits in the form of: (i) a lump  sum
                  payment equal to the present value of three times  his
                  salary and bonus compensation; (ii) the present  value
                  of  the additional amount he would have received under
                  the  TEP  Retirement Plan if he had  continued  to  be
                  employed  for the five-year period after a  change  in
                  control   occurs;   (iii)   the   present   value   of
                  contributions that would have been made by  TEP  under
                  the  TIP  if he had continued to be employed for  such
                  five-year  period; and (iv) the present value  of  any
                  employee  awards  under  the 1994  Omnibus  Stock  and
                  Incentive  Plan  or  any  successor  plan,  which  are
                  outstanding  at the time of the officer's  termination
                  (whether  vested or not), prorated based on length  of
                  service. Such officer is also entitled to continue  to
                  participate   in  TEP's  health,  death  benefit   and
                  disability  benefit  plans for five  years  after  the
                  termination. The Agreements further provide  that  TEP
                  will  make  a  payment to the officer  to  offset  any
                  excise  taxes  that may become payable  under  certain
                  conditions.  Any  payments made  in  respect  of  such
                  excise taxes are not deductible. Assuming a change  in
                  control occurred on the Record Date which resulted  in
                  the  immediate  termination  of  the  Chief  Executive
                  Officer  and  the  other Named Executives,  the  total
                  payments  made  by UniSource Energy  pursuant  to  the
                  Agreements  would  not  be  expected  to  exceed   $16
                  million.

            COMPENSATION COMMITTEE REPORT ON EXECUTIVE COMPENSATION

                  THE COMMITTEE

                  The  Compensation Committee of the Board of  Directors
                  (the  "Compensation  Committee")  is  responsible  for
                  developing  and  administering executive  compensation
                  policies and programs for UniSource Energy and TEP and
                  making  recommendations  to  the  Board  with  respect
                  thereto.  In  1999,  the  Compensation  Committee  was
                  comprised  of five independent outside directors.  The
                  Compensation Committee determines the compensation  of
                  UniSource  Energy's executive officers, including  Mr.
                  Pignatelli  and the other Named Executives,  and  sets
                  policies  for and reviews the compensation awarded  to
                  other  key  members  of management.  UniSource  Energy
                  applies  a  consistent philosophy to compensation  for
                  all   executive   employees,   including   the   Named
                  Executives.

                  OVERALL OBJECTIVES

                  UniSource Energy's executive compensation policies and
                  programs   generally  are  intended  to   relate   the
                  compensation of employees to the success of  UniSource
                  Energy  and  the corresponding creation of shareholder
                  value  to attract, retain and motivate executives  and
                  key    employees    with   competitive    compensation
                  opportunities.

                  EXECUTIVE COMPENSATION GENERALLY

                  We  review  executives'  pay each  year.  Compensation
                  depends   on   many   factors,  including   individual
                  performance  responsibilities, future  challenges  and
                  objectives  and the executive's potential contribution
                  to  our  future  success. We also  look  at  UniSource
                  Energy's  financial performance and  the  compensation
                  levels at comparable companies.

                  UniSource Energy's 1999 compensation program consisted
                  of three components:

                     --  base salary;
                     --  short-term incentive compensation; and
                     --  long-term incentive compensation.

                  BASE SALARY

                  The  base salary component of compensation is intended
                  to   be  competitive  with  that  paid  by  comparable
                  companies  in  the energy industry. In developing  the
                  compensation   program,  the  Compensation   Committee
                  retained   an   external  consultant  to   conduct   a
                  competitive  analysis  of pay for  UniSource  Energy's
                  officer  group. In conducting its analysis  for  1999,
                  the  consultant  used two comparator  groups:  (i)  an
                  energy   group  consisting  of  11  gas  and  electric
                  utilities with revenues from $.5 to $1.4 billion;  and
                  (ii)  a  mixed  group of 22 public  companies  in  the
                  energy   and   related  technology  industries,   with
                  revenues  from  $.5 to $1.4 billion. The  Compensation
                  Committee  believes the companies  in  the  comparator
                  groups are a more appropriate comparison for UniSource
                  Energy than the Edison Electric 100 companies used  in
                  the  Performance  Graph set forth below,  because  the
                  type  of business and annual revenues of the companies
                  included  in  the survey are more closely  related  to
                  those  of  UniSource Energy and the companies  in  the
                  comparator  groups  represent primary  competitors  to
                  UniSource  Energy for top-level management  personnel.
                  The  external  data from companies in  the  comparator
                  groups  was used to develop a market compensation  for
                  each  executive position. "Market compensation" refers
                  to  the median total salary for utility executives  in
                  the  comparator  groups. Base salaries  for  UniSource
                  Energy's  executive officers, including Mr. Pignatelli
                  and  the  other Named Executives, were set  at  market
                  compensation levels in January 1998, in recognition of
                  the   increasingly  competitive  environment  in   the
                  electric industry and the need to continue to  attract
                  and  retain highly qualified executives and  the  fact
                  that  a substantial portion of each executive's  total
                  compensation  package  is  "at-risk,"  based  on   the
                  achievement of certain corporate goals. See Short-Term
                  Incentive   Compensation   and   Long-Term   Incentive
                  Compensation  below. Base salaries for  the  Company's
                  executives, including the Named Executives,  were  not
                  increased  in 1999, with the exception of  four  newly
                  named  officers  whose salaries  were  set  at  market
                  compensation levels and one additional officer of TEP,
                  whose   salary   was  increased  to  a  market   level
                  reflecting new responsibilities.

                  SHORT-TERM INCENTIVES

                  The  Board  adopted  a Short-Term  Incentive  Plan  to
                  provide   compensation   for  meeting   or   exceeding
                  specified  objectives designed to  contribute  to  the
                  attainment  of UniSource Energy's long-term  strategic
                  plan.  Under  the  Short-Term Incentive  Plan,  target
                  award   levels  are  set  as  a  percentage  of   each
                  participant's base salary. In 1999, the percentage for
                  our  executive  officers ranged  from  25-55%.  Actual
                  awards  can  vary from 0 to 150% of the  target  award
                  level.  Awards for Mr. Pignatelli, Mr. Adler  and  Mr.
                  Nelson are determined by the Board based on individual
                  contributions  to  business  results  and   individual
                  performance.   Awards  for  the  remaining   executive
                  officers  are  determined by the Board  based  on  the
                  accomplishment  of  previously established  individual
                  goals  and contribution to business results. Based  on
                  the foregoing factors, the Compensation Committee made
                  awards  to  executive officers of the Company  ranging
                  from  0%  to 125% of the target award level. Incentive
                  compensation awarded to Mr. Pignatelli and  the  other
                  Named Executives is set forth in the preceding Summary
                  Compensation Table.

                  LONG-TERM INCENTIVES

                  UniSource Energy's long-term incentive compensation is
                  intended to attract and retain quality employees  over
                  the  long  term in a manner that directly aligns  them
                  with shareholder interests.

                  At  the  recommendation of the Compensation Committee,
                  the  Board of Directors unanimously adopted,  and,  at
                  the   1994   Annual   Meeting  of  Shareholders,   the
                  shareholders   approved  the  Tucson  Electric   Power
                  Company 1994 Omnibus Stock and Incentive Plan. On July
                  16,   1999  the  Compensation  Committee  issued  Non-
                  Qualified  Stock  Options ("NQSOs") to  all  executive
                  officers  of UniSource Energy including Mr. Pignatelli
                  and  the  other  Named Executives. In calculating  the
                  level  of awards to the other executive officers,  the
                  Compensation  Committee considered the above  analysis
                  of  executive compensation for comparative  companies.
                  Based  on  such  analysis, the Compensation  Committee
                  awarded Mr. Pignatelli NQSOs with a total value  equal
                  to  120%  of his base salary (based on a Black-Scholes
                  pricing  model  which assigned a value  of  $4.72  per
                  share). The total value of stock options issued to the
                  other Named Executives ranged from 30% to 50% of  base
                  salary.  The  number of shares covered  by  the  stock
                  option  grant  to  Mr.  Pignatelli  was  114,500.  The
                  Compensation Committee did not consider the number  of
                  options previously granted or outstanding.

                  In  1999, the Compensation Committee issued awards  of
                  restricted  stock  units  to  12  executive   officers
                  including the Named Executives. Restricted stock units
                  represent   the  right  to  receive  UniSource   stock
                  following  the expiration of a stated period  of  time
                  and  were  issued to retain key management  personnel.
                  Executives  that received restricted stock  awards  in
                  1999  are entitled to receive one-half of the  awarded
                  stock on March 5, 2002 and the remaining half on March
                  5,  2003,  provided  they are then still  employed  by
                  UniSource Energy or its subsidiaries. The Compensation
                  Committee  awarded  Mr. Pignatelli 100,524  restricted
                  stock  units with a total value equal to 267%  of  his
                  base  salary  (based on the closing  market  price  of
                  $11.9375  on  the  grant date). The  total  number  of
                  shares  of  restricted  stock issued  to  other  Named
                  Executives ranged from 53% to 158% of base salary.

                  TAX CODE CONCERNS

                  The  Compensation Committee does not presently have  a
                  policy  regarding  qualifying  compensation  paid   to
                  executive  officers  for deductibility  under  Section
                  162(m)  of  the  Internal Revenue  Code  of  1986,  as
                  amended.

                  CONCLUSION

                  We  believe Mr. Pignatelli and his executive team have
                  provided  outstanding service to UniSource Energy.  We
                  will   work   to  assure  the  executive  compensation
                  programs continue to meet out strategic goals as  well
                  as the overall objectives discussed above.

                                    Respectfully submitted,

                                    THE COMPENSATION COMMITTEE

                                    H. Wilson Sundt, Chair
                                    Larry W. Bickle
                                    Elizabeth T. Bilby
                                    Harold W. Burlingame
                                    Jose L. Canchola
                                    John A. Jeter

<PAGE>

                                AUDIT COMMITTEE REPORT

                  THE COMMITTEE

                  The  Audit  Committee  is  made  up  of  non-employee,
                  financially  literate, independent directors.  Several
                  members  of  the  Audit Committee have  accounting  or
                  related  financial management expertise. The Committee
                  has   complied   with   its  charter   including   the
                  requirement   to  meet  periodically  with   UniSource
                  Energy's  independent  auditors,  our  Internal  Audit
                  Department,   and  our  management  to   discuss   the
                  auditors'  findings and other financial and accounting
                  matters.

                  PricewaterhouseCoopers LLP, our  independent  auditor,
                  has   provided   the  Audit  Committee  with   written
                  assurance of its independence. The Audit Committee has
                  discussed  the  results  of the PricewaterhouseCoopers
                  audit  as required by applicable accounting standards.
                  The  Committee  has also reviewed and  discussed  with
                  management  the  audited  financial  statements   that
                  appear in our 1999 Annual Report.

                  Based  on  all of its activities during the year,  the
                  Audit  Committee recommended to the Board of Directors
                  that the financial statements for 1999 be included  in
                  the  Annual  Report on Form 10-K for filing  with  the
                  Securities and Exchange Commission.

                                     Respectfully submitted,

                                     THE AUDIT  COMMITTEE

                                     John A. Jeter, Chair
                                     Larry W. Bickle
                                     Elizabeth T. Bilby
                                     Harold W. Burlingame
                                     Martha R. Seger
                                     John L. Carter
                                     H. Wilson Sundt

<PAGE>


                         PERFORMANCE GRAPH
       Comparison of Cumulative Five Year Total Return Among
           UNISOURCE ENERGY, Standard & Poor's 500 Index
         and EEI Index of 100 Investor-Owned Utilities (1)

The graph showing on the hard copy represents the comparison of five year
cumulative total return between UniSource Energy Corporation, the S&P
500 Index, and EEI Index of 100 investor-owned utilities.  The graph's
X-axis shows the years 1994 to 1999, and the Y-axis shows dollar values from
50 to 400.  The data points are connected by lines with the following markers:
UNS - triangles; S&P 500 Index - diamonds; EEI Index of 100 investor-
owned utilities - squares.  The datapoints are as follows:

<TABLE>
<CAPTION>


                          1994    1995    1996    1997    1998    1999
                          ----    ----    ----    ----    ----    ----

<S>                       <C>     <C>     <C>     <C>     <C>     <C>
UniSource Energy
Corporation               $100    $108    $110    $121    $ 90    $ 75

S&P 500 Index             $100    $138    $169    $226    $290    $351

EEI Index of 100
Investor-owned
Utilities                 $100    $131    $133    $169    $192    $157

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

(1) Assumes $100 invested on December 31, 1994 in Tucson Electric
    Power Company common stock, S&P Index and EEI Index. It is assumed
    that all dividends are reinvested in stock at the frequency paid
    and the returns of each component peer group issuer are weighted
    according to the issuer's stock market capitalization at the
    beginning of the period.

</TABLE>


    COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

                  LEBOEUF LAMB GREEN & MACRAE L.L.P.

                  The law firm of LeBoeuf Lamb Green & MacRae L.L.P. has
                  provided  certain legal services to UniSource  Energy.
                  Mr. Fessler, a member of our Compensation Committee is
                  an  equity  owner of that firm. The arrangements  with
                  that  firm  are competitive with those  of  other  law
                  firms serving us.

               PROPOSAL 2:  AMENDMENT TO UNISOURCE ENERGY'S
                  1994 OMNIBUS STOCK AND INCENTIVE PLAN

                  GENERAL

                  Our   1994  Omnibus  Stock  and  Incentive  Plan  (the
                  "Omnibus  Plan")  was originally adopted  by  the  TEP
                  Board  of  Directors, effective February 4,  1994  and
                  approved  by  the TEP shareholders in May,  1994.  The
                  Omnibus  Plan  has  since been  assumed  by  UniSource
                  Energy   in  connection  with  the  establishment   of
                  UniSource  Energy as the holding company  for  TEP  in
                  1998.  UniSource Energy and the Compensation Committee
                  of the Board believe that UniSource Energy's prospects
                  for   returning   gradually  to  long-term   financial
                  viability  depend,  in part, upon the  capability  and
                  performance  of  its  salaried  employees   and   that
                  appropriate  compensation and incentives are  integral
                  in  attracting  and  retaining  these  personnel.  The
                  Omnibus   Plan   is   designed  to  accomplish   these
                  objectives by providing equity interests in  UniSource
                  Energy   for   salaried   employees,   and   providing
                  incentives for superior performance. The following  is
                  a  summary  of  the material features of  the  Omnibus
                  Plan, as amended, a complete copy of which appears  as
                  Appendix  A  hereto. The summary is qualified  in  its
                  entirety by reference to Appendix A.

                  PROPOSED AMENDMENTS

                  The  Board  of  Directors  has  adopted,  subject   to
                  shareholder  approval, amendments to the Omnibus  Plan
                  including  making  an additional 2,500,000  shares  of
                  UniSource  Energy  common stock available  for  awards
                  under the Omnibus Plan. The Amendment also limits  the
                  maximum  number of shares of stock subject to  options
                  or  SARs  granted  during any  calendar  year  to  any
                  individual to 200,000 shares and the maximum number of
                  shares  of  stock for all awards under the Plan  in  a
                  given  year  to  any one individual  to  300,000.  The
                  Amendment  also adds a provision to the  Omnibus  Plan
                  which  will  prohibit repricings  of  any  outstanding
                  option  or SAR to a price that is less than  the  fair
                  market  value of a share of UniSource Energy stock  on
                  the  date  the  option  or SAR  was  granted.  At  the
                  Meeting,  the shareholders are being asked  to  ratify
                  and  approve  making the 2,500,000  additional  shares
                  available under the Plan.

                  PURPOSE OF AMENDMENT

                  As  set forth above, equity incentives are an integral
                  part  of  our  compensation philosophy.  All  salaried
                  employees  with  six  or  more  months  of  experience
                  historically have been granted options.

                  Since  the  adoption  of  the Omnibus  Plan,  we  have
                  granted options with respect to substantially  all  of
                  the  shares  authorized under  the  Omnibus  Plan.  We
                  believe  that awarding options under the Omnibus  Plan
                  has been integral to our success in returning to long-
                  term financial viability. We also believe the dilutive
                  effect  of the awards is substantially less  than  the
                  earnings  improvements driven by recruiting, retaining
                  and motivating employees through the Omnibus Plan.  We
                  believe  that failure to continue the Omnibus Plan  in
                  the future would have a materially negative impact  on
                  our  ability  to attract and retain skilled  employees
                  and  management and accordingly to maintain growth  in
                  the  newly  deregulated  and increasingly  competitive
                  electricity environment.

                  We  believe the 2,500,000 additional shares  requested
                  under  this  proposed amendment will be sufficient  to
                  accommodate   all   anticipated  awards   during   the
                  remaining term of the Omnibus Plan. We further believe
                  that  the proposed amendment benefits shareholders  in
                  that  it continues to align shareholder interests with
                  employee interests.

                  PARTICIPATION

                  All   salaried  employees  (approximately   452)   are
                  eligible   to   participate  in  the   Omnibus   Plan.
                  Participants are those salaried employees who  may  be
                  selected  by  the Compensation Committee in  its  sole
                  discretion   from  those  eligible  for   awards.   In
                  addition,   approximately  677  union  employees   are
                  included  as  eligible participants under the  Omnibus
                  Plan.

                  ADMINISTRATION

                  The  Omnibus  Plan is administered by the Compensation
                  Committee  of the Board of Directors, which  Committee
                  is composed entirely of non-employee directors.

                  TYPES OF AWARDS

                  The  Omnibus Plan provides for granting of any or  all
                  of  the  following types of awards: (i) stock options,
                  including incentive stock options, non-qualified stock
                  options  and  discounted  stock  options;  (ii)  stock
                  appreciation  rights;  (iii)  restricted  stock;  (iv)
                  performance  units; (v) performance shares;  and  (vi)
                  dividend  equivalents. The type and amount of  awards,
                  the  time  when  made, the term, the  price,  exercise
                  provisions, vesting provisions, performance  criteria,
                  if  any, method of payment, and any other terms of the
                  award are determined by the Compensation Committee  at
                  the  time  of  each  grant,  subject  to  the  express
                  provisions of the Omnibus Plan.

                  Awards   which  are  not  yet  exercisable   will   be
                  accelerated upon any "change in control" of  UniSource
                  Energy as defined in the Omnibus Plan.

                  TERM AND AMENDMENT

                  No  awards  may be made under the Omnibus Plan  on  or
                  after  tenth  anniversary of its effective  date.  The
                  Omnibus Plan is subject to earlier termination by  the
                  Board.  The  Board may amend the Omnibus Plan  without
                  further  approval of the shareholders  except  to  the
                  extent  approval is required by Rule 16b-3  under  the
                  Exchange Act or is otherwise required by law.

                  SHARES SUBJECT TO THE OMNIBUS PLAN

                  The  number  of  shares of common stock  of  UniSource
                  Energy,  no  par  value, underlying awards  under  the
                  Omnibus  Plan currently may not exceed 1.6 million  in
                  the  aggregate (subject to anti-dilution adjustments).
                  If   the   shareholders  approve  Proposal   Two,   an
                  additional 2,500,000 shares of UniSource Energy common
                  stock  will  be  made available for awards  under  the
                  Omnibus Plan. Shares underlying awards that expire  or
                  terminate unexercised or that are not settled in stock
                  are  thereafter available for further  grants  to  the
                  maximum extent possible. The shares of common stock to
                  be  delivered under the Omnibus Plan may  consist,  in
                  whole or in part, of authorized but unissued stock  or
                  treasury stock, not reserved for any other purpose. On
                  March  22, 2000, the most recent practicable date  for
                  which  quotations were available prior to the printing
                  of  this document, the closing price per share of  the
                  UniSource Energy common stock was $14.25, as  reported
                  on  the  New York Stock Exchange Composite Transaction
                  Tape.

The table below reflects the 1999 grants made under the 1994 Plan. We
do  not believe that the amounts granted in 1999 would have differed
if  the  proposed  amendments had been adopted at the  beginning  of
1999. At this time, we are unable to predict the awards that will be
made in the future if the proposed Plan amendments are passed.

<TABLE>
<CAPTION>
                                        New Plan Benefits
                  1999 Grants Under the 1994 Omnibus Stock and Incentive Plan


                                     Restricted Share Units       Stock Options Granted
                                     ----------------------       ---------------------

                                                                    Dollar   Number of
Name and Principal Position    Dollar Value (1)   Number of Units    Value     Units
- ---------------------------    ----------------   ---------------   ------   ---------

<S>                               <C>                 <C>             <C>     <C>
James S. Pignatelli               1,200,005           100,524         (2)     114,500
President and Chief
Executive Officer

Ira R. Adler                        225,010            18,849         (2)      31,800
Executive Vice President,
Chief Financial Officer
and Treasurer

Dennis R. Nelson                    225,010            18,849         (2)      18,200
Vice President, General
Counsel and Corporate
Secretary

Steven J. Glaser                    283,760            23,849         (2)      11,450
Vice President
Energy Services (TEP)

Karen G. Kissinger                   90,009             7,540         (2)      10,800
Vice President,
Controller and Principal
Accounting Officer

All current executive officers    3,047,279           255,238         (2)     263,450
as a group

All non-employee directors            --                 --            --       --
as a group

All employees, excluding              --                 --           (2)     342,793
executive officers, as a
group

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

(1)   The value represents the fair market value of the restricted
      stock award on the grant date.
(2)   The exercise price of the options equaled the market price of
      UniSource Energy's common stock at the grant date.

</TABLE>

                  GRANT INFORMATION

                  The  number of officers and employees who are selected
                  for awards under the Omnibus Plan varies from year  to
                  year. It is not possible to determine awards that will
                  be made pursuant to the Omnibus Plan in the future.

                  The  exercise  price for incentive  and  non-qualified
                  stock  options granted under the Omnibus Plan may  not
                  be  less  than  the  fair market  value  of  UniSource
                  Energy's  common stock on the date of grant; provided,
                  however,  that non-qualified stock options  which  are
                  discounted  stock  options are  not  subject  to  this
                  restriction but must have an exercise price  not  less
                  than  the  greater of $1.00 or 25% of the fair  market
                  value of the stock on the date of grant.

                  Other terms of option grants will be determined by the
                  Compensation Committee on the date of grant.

                  OPTIONS FEDERAL INCOME TAX CONSEQUENCES

                  Consequences to the Optionholder

                  Grant. There are no federal income tax consequences to
                  the  optionholder solely by reason  of  the  grant  of
                  incentive   stock  options  and  non-qualified   stock
                  options under the Omnibus Plan.

                  Exercise.  The exercise of incentive stock options  is
                  not  a  taxable event for regular federal  income  tax
                  purposes.

                  Upon the exercise of a non-qualified stock option, the
                  optionholder will generally recognize ordinary  income
                  in  an  amount equal to the excess of the fair  market
                  value  of the shares of UniSource Energy common  stock
                  at  the  time of exercise over the amount paid as  the
                  exercise  price.  The  ordinary income  recognized  in
                  connection with the exercise by an optionholder  of  a
                  non-qualified  stock option will be  subject  to  both
                  wage and employment tax withholding.

                  The  optionholder's tax basis in the  shares  acquired
                  pursuant to the exercise of a stock option will be the
                  amount paid upon exercise plus, in the case of a  non-
                  qualified stock option, the amount of ordinary  income
                  recognized by the optionholder upon exercise.

                  Qualifying Disposition. If an optionholder disposes of
                  shares of UniSource Energy common stock acquired  upon
                  exercise  of  an incentive stock option in  a  taxable
                  transaction, and such disposition occurs more than two
                  years from the date on which the option is granted and
                  more  than one year after the date on which the shares
                  are  transferred to the optionholder, the optionholder
                  will recognize long-term capital gain or loss equal to
                  the  difference between the amount realized upon  such
                  disposition and the optionholder's adjusted  basis  in
                  such shares (generally the option exercise price.)

                  Disqualifying Disposition. If an optionholder disposes
                  of  shares  of UniSource Energy common stock  acquired
                  upon exercise of an incentive stock option (other than
                  in  certain  tax-free transactions) within  two  years
                  from  the date on which the incentive stock option  is
                  granted or within one year after the transfer  of  the
                  shares  to  the  optionholder, then  at  the  time  of
                  disposition the optionholder will generally  recognize
                  ordinary income equal to the lesser of (i) the  excess
                  of such  shares'  fair  market  value  on the  date of
                  exercise   over  the  exercise   price  paid  by   the
                  optionholder  or  (ii) the optionholder's  actual gain
                  (i.e., the excess, if any, of the  amount realized  on
                  the  disposition over  the exercise price  paid by the
                  optionholder).  If the amount realized  on  a  taxable
                  disposition exceeds the fair market value on the  date
                  of  exercise, then the optionholder will  recognize  a
                  capital  gain  in the amount of such  excess.  If  the
                  optionholder  incurs a loss on the disposition  (i.e.,
                  if the amount realized is less than the exercise price
                  paid  by  the optionholder), then the loss will  be  a
                  capital loss.

                  Other  Disposition.  If  an optionholder  disposes  of
                  shares of UniSource Energy common stock acquired  upon
                  exercise of a non-qualified stock option in a  taxable
                  transaction,  the optionholder will recognize  capital
                  gain  or  loss  in an amount equal to  the  difference
                  between  his basis (as discussed above) in the  shares
                  sold  and  the  amount realized upon disposition.  Any
                  such  capital  gain or loss (and any capital  gain  or
                  loss  recognized  on  a disqualifying  disposition  of
                  shares of UniSource Energy common stock acquired  upon
                  exercise  of  incentive  stock  options  as  discussed
                  above)  will  be long-term or short-term depending  on
                  whether  the  shares of UniSource Energy common  stock
                  were  held  for more than one year from the date  such
                  shares were transferred to the optionholder.

                  Consequences to UniSource Energy

                  There  are  no  federal  income  tax  consequences  to
                  UniSource  Energy by reason of the grant of  incentive
                  stock  options or non-qualified stock options  or  the
                  exercise  of  incentive  stock  options  (other   than
                  disqualifying dispositions).

                  At  the  time  the  optionholder  recognizes  ordinary
                  income  from  the  exercise of an non-qualified  stock
                  option, UniSource Energy will be entitled to a federal
                  income  tax  deduction in the amount of  the  ordinary
                  income  so  recognized (as described above),  provided
                  that   UniSource  Energy  satisfies  its   withholding
                  obligations  described  below.  To  the   extent   the
                  optionholder recognizes ordinary income by reason of a
                  disqualifying  disposition of the stock acquired  upon
                  exercise  of incentive stock option, UniSource  Energy
                  will  be entitled to a corresponding deduction in  the
                  year in which the disposition occurs.

                  UniSource  Energy will be required to  report  to  the
                  Internal   Revenue   Service   any   ordinary   income
                  recognized  by  any  optionholder  by  reason  of  the
                  exercise  of  a non-qualified stock option.  UniSource
                  Energy  will  be  required  to  withhold  income   and
                  employment  taxes  (and pay the  employer's  share  of
                  employment  taxes)  with respect  to  ordinary  income
                  recognized  by the optionholder upon the  exercise  of
                  non-qualified stock options.

                  Other Tax Consequences

                  The above discussion is not a complete description  of
                  the  federal  income  tax aspects of  incentive  stock
                  options  and  non-qualified stock  options  under  the
                  Omnibus Plan. In addition, administrative and judicial
                  interpretations  of  the application  of  the  federal
                  income  tax  laws are subject to changes. Furthermore,
                  the  above discussion does not address state or  local
                  tax consequences.

    The Board recommends that you vote "FOR" the Amendment to the
                            Omnibus Plan.

                          SUBMISSION OF SHAREHOLDER PROPOSALS

                  GENERAL

                  Rule  14a-4 of the SEC's proxy rules allows us to  use
                  discretionary  voting authority to vote  on  a  matter
                  coming  before  an annual meeting of the  shareholders
                  which  was not included in our Proxy Statement (if  we
                  do  not  have  notice of the matter at least  45  days
                  before  the  date on which we first mailed  our  proxy
                  materials for the prior year's annual meeting  of  the
                  shareholders).   In  addition,   we   may   also   use
                  discretionary  voting authority if we  receive  timely
                  notice  of  such matter (as described in the preceding
                  sentence) and if, in the Proxy Statement, we  describe
  .               the  nature  of  such  matter and  how  we  intend  to
                  exercise  our  discretion to vote on it.  Accordingly,
                  for  our 2001 Annual Meeting of Shareholders, any such
                  notice must be submitted to the Corporate Secretary of
                  UniSource Energy on or before February 13, 2001.

                      We  must receive your shareholder proposals  by
                      November 30, 2000

                  This  requirement is separate and apart from the SEC's
                  requirements that a shareholder must meet in order  to
                  have  a  shareholder proposal included  in  our  Proxy
                  Statement.  Shareholder  proposals  intended   to   be
                  presented  at  our 2001 Annual Meeting of Shareholders
                  must be received by us no later than November 30, 2000
                  in  order  to be eligible for inclusion in  our  Proxy
                  Statement  and  the  form of proxy  relating  to  that
                  meeting.  Direct  any proposals, as  well  as  related
                  questions to the undersigned.

                                 OTHER BUSINESS

                  The  Board of Directors knows of no other matters  for
                  consideration  at the Meeting. If any  other  business
                  should  properly arise, the persons appointed  in  the
                  enclosed proxy have discretionary authority to vote in
                  accordance with their best judgment.

                  Additional copies  of our 1999  Annual Report  on form
                  10-K may be obtained by shareholders, without  charge,
                  upon  written  request  to Library,  UniSource  Energy
                  Corporation,  3950  East  Irvington  Road,  Mail  Stop
                  RC114,  P.O. Box 711, Tucson, Arizona 85702.  You  may
                  also  obtain  our SEC filings through the Internet  at
                  www.sec.gov.

                                   By order of the Board of Directors.



                                   Dennis R. Nelson
                                   Corporate Secretary

                 PLEASE VOTE - YOUR VOTE IS IMPORTANT

<PAGE>

                                                             APPENDIX A

                   Tucson Electric Power Company
               1994 Omnibus Stock and Incentive Plan


Section 1:  Establishment, Purpose and Effective Date of Plan.....A-1
Section 2:  Definitions...........................................A-1
Section 3:  Eligibility and Participation.........................A-2
Section 4:  Administration/.......................................A-3
Section 5:  Stock Subject to Plan.................................A-3
Section 6:  Duration of Plan......................................A-3
Section 7:  Stock Options.........................................A-4
Section 8:  Stock Appreciation Rights.............................A-5
Section 9:  Restricted Stock......................................A-6
Section 10: Performance Units and Performance Shares..............A-7
Section 11: Discounted Stock Options..............................A-8
Section 12: Beneficiary Designation...............................A-8
Section 13: Rights of Employees...................................A-8
Section 14: Change in Control.....................................A-8
Section 15: Amendment, Modification and Termination of Plan.......A-9
Section 16: Tax Withholding.......................................A-9
Section 17: Indemnification......................................A-10
Section 18: Requirements of Law..................................A-10
Section 19: Funding..............................................A-10

<PAGE>


Section 1:   Establishment, Purpose and Effective Date of Plan

        1.1  Establishment.  Tucson Electric Power Company, an Arizona
corporation, hereby establishes the "Tucson Electric Power  Company
1994  Omnibus Stock and Incentive Plan" (the "Plan") for Employees.
The  Plan permits the grant of stock options, dividend equivalents,
stock appreciation rights, restricted stock, performance units  and
performance shares.

        1.2  Purpose.   The purpose of the Plan is  to  advance  the
interests  of  the  Company, by encouraging and providing  for  the
acquisition of an equity interest in the success of the Company  by
Employees, by providing additional incentives and motivation toward
superior performance of the Company, and by enabling the Company to
attract  and retain the services of Employees upon whose  judgment,
interest  and  special  effort  and  successful  conduct   of   its
operations is largely dependent.

        1.3  Effective  Date.   The  Plan  shall  become  effective
immediately  upon  its adoption by the Board of  Directors  of  the
Company  subject  to  its ratification by the shareholders  of  the
Company and the receipt of any necessary governmental approvals.

Section 2:   Definitions

        2.1  Definitions.  Whenever used herein, the following terms
shall have their respective meanings set forth below:

         (a)  "Award"  means any Option, Stock Appreciation  Right,
Restricted  Stock,  Performance Unit or Performance  Share  granted
under this Plan.

         (b)  "Board" means the Board of Directors of the Company.

         (c)  "Code"  means the Internal Revenue Code of  1986,  as
amended.

         (d)  "Committee"  means  the  non-Employee   independent
directors  of the Company serving on the Compensation Committee  of
the Board of Directors. No person, while a member of the Committee,
shall  be  eligible for participation in the Plan,  and  no  person
shall become a member of the Committee unless such person meets the
requirements for disinterested administration set forth in Rule 16b-
3 of the Securities Exchange Act of 1934, as amended.

         (e)  "Company"  means Tucson Electric  Power  Company,  an
Arizona Corporation.

         (f)  "Discounted  Stock Option" means  an  Option  granted
pursuant to Section 11 of the Plan.

         (g)  "Disability"  means  disability  as  defined  in  the
Company's Salaried Employees Retirement Plan.

         (h)  "Employee"  means  a  common  law  salaried  Employee
(including  officers and directors who are also Employees)  of  the
Company or its subsidiaries.

         (i)  "Fair Market Value" means the average of the  highest
and   lowest  sales  prices  of  the  Stock  as  reported  on   the
consolidated  tape  for securities listed on  the  New  York  Stock
Exchange on a particular date. In the event that there are no Stock
transactions  on  such  date,  the  Fair  Market  Value  shall   be
determined  by  utilization  of  the  above  formula  as   of   the
immediately preceding date on which there were Stock transactions.

         (j)  "Option" means the right to purchase Stock at a stated
price  for a specified period of time. For purposes of the Plan  an
Option  may  be either (i) an "incentive stock option"  within  the
meaning  of  Section  422 of the Code, (ii) a  "nonstatutory  stock
option"  (an  option  which  is  not  an  incentive  stock  option)
including  a  Discounted Stock Option, or (iii) any other  type  of
option encompassed by the Code.

         (k)  "Participant" means any Employee  designated  by  the
Committee to participate in the Plan.

         (l)  "Performance Unit" means a right to receive a payment
equal  to  the  value of a Performance Unit as  determined  by  the
Committee.

         (m)  "Performance Share" means a right to receive a payment
equal  to  the  value of a Performance Share as determined  by  the
Committee.

         (n)  "Period of Restriction" means the period during which
shares of Restricted Stock are subject to restrictions pursuant  to
Section 9 of the Plan.

         (o)  "Restricted Stock" means Stock granted to a Participant
pursuant to Section 9 of the Plan.

         (p)  "Retirement" (including "Early Retirement" and "Normal
Retirement")  means termination of employment for retirement  under
the terms of the Company's Salaried Employees Retirement Plan.

         (q)  "Stock" means the Common Stock of the Company, no  par
value.

         (r)  "Stock Appreciation Right" and "SAR" mean the right to
receive a payment from the Company equal to the excess of the  Fair
Market  Value of the share of Stock at the date of exercise over  a
specified  price fixed by the Committee, which shall  not  be  less
than  100%  of the Fair Market Value of the Stock on  the  date  of
grant.  In the case of a Stock Appreciation Right which is  granted
in  conjunction with an Option, the specified price  shall  be  the
Option exercise price.

        2.2  Gender and Number.  Except when otherwise indicated  by
the  context, words in the masculine gender when used in  the  Plan
shall  include the feminine gender, the singular shall include  the
plural, and the plural shall include the singular.

Section 3:   Eligibility and Participation

        3.1  Eligibility and Participation.  Participants in the Plan
shall be selected by the Committee from among those Employees  who,
in  the  opinion of the Committee, are in a position to  contribute
materially to the Company's continued growth and development and to
its long-term financial success.

Section 4:   Administration

        4.1  Administration.  The Committee shall be responsible for
the  administration of the Plan. The Committee, by majority  action
thereof,  is authorized to interpret the Plan, to prescribe,  amend
and  rescind rules and regulations relating to the Plan, to provide
for  conditions  and assurances deemed necessary  or  advisable  to
protect  the  interests  of the Company,  and  to  make  all  other
determinations necessary or advisable for the administration of the
Plan, but only to the extent not contrary to the express provisions
of the Plan. Determinations, interpretations, or other actions made
or  taken by the Committee in good faith pursuant to the provisions
of the Plan shall be final, binding and conclusive for all purposes
and upon all persons whomsoever.

      The Committee shall have the authority, in its discretion, to
determine the Employees to whom Awards shall be granted, the  times
when  such  Awards  shall be granted, the  number  of  Awards,  the
purchase  price or exercise price, the period(s) during which  such
Awards  shall  be exercisable (whether in whole or  in  part),  the
restrictions  applicable  to  Awards,  and  the  other  terms   and
provisions  thereof  (which need not be identical).  The  Committee
shall  have  the  authority to modify existing Awards;  however  no
modification of existing Awards shall occur without the consent  of
the Employee holding such Awards.

Section 5:   Stock Subject to Plan

        5.1  Number.  The total number of shares of Stock subject to
Awards  under  the  Plan may not exceed eight million,  subject  to
adjustment  upon  occurrence  of any of  the  events  indicated  in
Section 5.3. The shares to be delivered under the Plan may consist,
in  whole  or in part, of authorized but unissued Stock or treasury
Stock, not reserved for any other purpose.

       5.2  Lapsed Awards.  Subject to the express provisions of the
Plan,  if  any Award granted under the Plan terminates, expires  or
lapses  for  any reason, or is paid in cash, any Stock  subject  to
such  Award  again shall be Stock available for  the  grant  of  an
Award.  With respect to Awards made to Section 16 insiders,  shares
of  such Stock may be reused to the maximum extent permitted  under
Section 16 of the Securities Exchange Act of 1934, as amended  (the
"Exchange Act").

       5.3  Adjustment in Capitalization. In the event of any change
in  the  outstanding shares of Stock that occurs after ratification
of the Plan by the shareholders of the Company by reason of a Stock
dividend   or   split,  recapitalization,  merger,   consolidation,
combination, exchange of shares, or other similar corporate change,
the  aggregate number of shares of Stock available under  the  Plan
subject  to each outstanding Award, and its stated exercise  price,
or  the  basis upon which the Award is measured shall  be  adjusted
appropriately  by  the  Committee,  whose  determination  shall  be
conclusive;  provided,  however, that fractional  shares  shall  be
rounded  to the nearest whole share. Any adjustment to an incentive
stock  option shall be made pursuant to the requirements of Section
424(b) of the Code.

Section 6:   Duration of Plan

        6.1  Duration  of  Plan.  The Plan shall remain in  effect,
subject to the Board's right to earlier terminate the Plan pursuant
to Section 15 hereof, until all Stock subject to it shall have been
purchased   or   acquired  pursuant  to  the   provisions   hereof.
Notwithstanding  the foregoing, no Award may be granted  under  the
Plan  on  or  after  the  tenth (10th) anniversary  of  the  Plan's
effective date.

Section 7:   Stock Options

        7.1  Grant of Options.  Subject to the provisions of Sections
5  and  6,  Options may be granted to Participants at any time  and
from  time  to  time as shall be determined by the  Committee.  The
Committee shall have complete discretion in determining the  number
of Options granted to each Participant. The Committee may grant any
type  of Option to purchase Company Stock that is permitted by  law
at the time of grant. To the extent the aggregate Fair Market Value
(determined  at the time the Option is granted) of the  Stock  with
respect  to which incentive stock options are exercisable  for  the
first  time by a Participant in any calendar year (under this  Plan
and  any other plans of the Company) exceeds $100,000, such Options
shall  not be deemed incentive stock options. In determining  which
Options may be treated as non-qualified Options under the preceding
sentence, Options will be taken into account in the order of  their
dates  of  grant. No incentive stock option may be granted  to  any
person  who  owns,  directly or indirectly, more than  ten  percent
(10%) of the total combined voting power of all classes of stock of
the  Company. Nothing in this Section 7 of the Plan shall be deemed
to prevent the grant of nonstatutory stock options in amounts which
exceed the maximum established by Section 422 of the Code.

        7.2  Option Agreement.  Each Option shall be evidenced by an
Option agreement that shall specify the type of Option granted, the
Option  price, the duration of the Option, the number of shares  of
Stock to which the Option pertains and such other provisions as the
Committee shall determine.

        7.3  Option Price.  No Option shall be granted pursuant to the
Plan at an Option price that is less than the Fair Market Value  of
the  Stock  on  the  date the Option is granted, except  Discounted
Stock Options described in Section 11.

        7.4  Duration of Options.  Each Option shall expire at  such
time  or times as the Committee shall determine at the time  it  is
granted;  provided,  however, that no Option shall  be  exercisable
later than ten (10) years from the date of its grant.

        7.5  Exercise  of Options.  Options granted under  the Plan
shall  be  exercisable  at  such  times  and  be  subject  to  such
restrictions and conditions as the Committee shall in each instance
approve, which need not be the same for all Participants.

        7.6  Payment.  The purchase price of Stock upon exercise of
any  option shall be paid in full either (i) in cash, (ii) in Stock
valued  at its Fair Market Value on the date of exercise, or  (iii)
by  a  combination  of  (i)  and (ii)  at  the  discretion  of  the
Committee.  The  Committee in its sole discretion may  also  permit
payment  of  the purchase price upon exercise of any Option  to  be
made by (i)  having shares withheld from the total number of shares
of common stock  to be delivered upon exercise, or (ii) delivering a
properly executed notice together with irrevocable instructions  to
a  broker to promptly deliver to the Company the amount of sale  or
loan  proceeds to pay the exercise price. The proceeds from payment
of option prices shall be added to the general funds of the Company
and shall be used for general corporate purposes.

        7.7  Restrictions on Stock Transferability.   The Committee
shall  impose  such  restrictions on any shares of  Stock  acquired
pursuant to the exercise of an Option under the Plan as it may deem
advisable,   including,  without  limitation,  restrictions   under
applicable  Federal securities law, under the requirements  of  any
stock exchange upon which such shares of Stock are then listed  and
under  any  blue  sky or state securities laws applicable  to  such
shares.

        7.8  Termination of Employment Due to Death,  Disability or
Retirement.   In  the  event the employment  of  a  Participant  is
terminated  by  reason  of  death, Disability  or  Retirement,  any
outstanding  Options  then exercisable  may  be  exercised  by  the
Participant (or the beneficiary, in the case of death) at any  time
prior to the expiration date of the Options, or within twelve  (12)
months  after  such  date of termination of  employment,  whichever
period  is the shorter, except in the case of Retirement,  where  a
three  (3)  year  period shall be substituted for the  twelve  (12)
month period. However, in the case of incentive stock options,  the
favorable  tax treatment prescribed under Section 422 of  the  Code
shall  not  be  available if such Options are not exercised  within
three  (3) months after date of termination, or twelve (12)  months
in  the  case  of Disability. If an incentive stock option  is  not
exercised within three (3) months of termination due to Retirement,
it  shall  be  treated  as  a nonstatutory  stock  option  for  the
remainder of its allowable exercise period.

        7.9  Termination  of  Employment  Other  Than  for  Death,
Disability  or  Retirement.  If the employment of  the  Participant
shall  terminate  for  any  reason other  than  death,  Disability,
Retirement, or involuntarily for cause, the rights under  any  then
outstanding  Option  granted pursuant to the Plan  shall  terminate
upon  the expiration date of the Option or three months after  such
date  of  termination of employment, whichever first occurs.  Where
termination of employment is involuntarily for cause, rights  under
all  Options  shall  terminate  immediately  upon  termination   of
employment.

        7.10 Non-Transferability of Options.  No Option granted under
the  Plan may be sold, transferred, pledged, assigned, or otherwise
alienated or hypothecated, otherwise than by will or by the laws of
descent and distribution or pursuant to a domestic relations order.
Further, all Options granted to a Participant under the Plan  shall
be exercisable only by such Participant during his lifetime.

Section 8:   Stock Appreciation Rights

        8.1  Grant  of  Stock Appreciation Rights.  Subject to  the
provisions of Sections 5 and 6, Stock Appreciation Rights  ("SARs")
may be granted to Participants at any time and from time to time as
shall  be  determined by the Committee. An SAR grant  shall  be  in
writing.

        8.2  Payment of SAR Amount.  Upon exercise of the  SAR, the
holder shall be entitled to receive payment of an amount determined
by multiplying:

         (a)  The difference between the Fair Market Value of a share
of  Stock  at  the  date of exercise over the price  fixed  by  the
Committee at the date of grant, by

         (b)  The number of shares with respect to which the SAR is
exercised.

        8.3  Form and Timing of Payment.  At the sole discretion  of
the Committee, payment for SARs may be made in cash or Stock, or in
a combination thereof.

        8.4  Rule  16b-3  Requirements.  Notwithstanding  any other
provision of the Plan, the Committee may impose such conditions  on
exercise of an SAR (including, without limitation, the right of the
Committee  to limit the time of exercise to specified  periods)  as
may  be required to satisfy the requirements of Rule 16b-3 (or  any
successor rule), under the Exchange Act.

         8.5  Term of SAR.  The term of an SAR granted under the Plan
shall not exceed ten (10) years.

         8.6  Termination of Employment.  In the event the employment
of  a  Participant  is terminated by reason of  death,  Disability,
Retirement,  or  any  other  reason,  any  SARs  outstanding  shall
terminate  in  the  same  manner as  specified  for  Options  under
Sections 7.8 and 7.9 herein.

         8.7  Non-Transferability of SARs.  No SAR granted under the
Plan  may  be  sold,  transferred, pledged, assigned  or  otherwise
alienated or hypothecated, otherwise than by will or by the laws of
descent and distribution or pursuant to a domestic relations order.
Further, all SARs granted to a Participant under the Plan shall  be
exercisable only by such Participant during his lifetime.

Section 9:   Restricted Stock

        9.1  Grant of Restricted Stock.  Subject to the provisions of
Sections 5 and 6, the Committee, at any time and from time to time,
may  grant  shares  of  Restricted Stock under  the  Plan  to  such
participants and in such amounts as it shall determine. Each  grant
of Restricted Stock shall be in writing.

        9.2  Transferability.  Except as provided in Sections 9.6 and
9.7  hereof,  the shares of Restricted Stock granted hereunder  may
not  be sold, transferred, pledged, assigned or otherwise alienated
or hypothecated for such a period of time as shall be determined by
the Committee and shall be specified in the Restricted Stock grant,
or  upon  earlier satisfaction of other conditions as specified  by
the  Committee  in  its  sole  discretion  and  set  forth  in  the
Restricted Stock grant.

        9.3  Other  Restrictions.  The Committee shall  impose such
other  restrictions  on  any  shares of  Restricted  Stock  granted
pursuant  to  the Plan as it may deem advisable including,  without
limitation,   restrictions  under  applicable  Federal   or   state
securities  law,  and  may  legend  the  certificates  representing
Restricted Stock to give appropriate notice of such restrictions.

        9.4  Voting Rights.  Participants holding shares of Restricted
Stock  granted  hereunder  may exercise  full  voting  rights  with
respect to those shares during the Period of Restriction.

        9.5  Dividend and Other Distributions.  During the Period of
Restriction,  Participants  holding  shares  of  Restricted   Stock
granted  hereunder shall be entitled to receive all  dividends  and
other  distributions paid with respect to those shares  while  they
are  so  held. If any such dividends or distributions are  paid  in
shares  of  Stock,  the  shares  shall  be  subject  to  the   same
restrictions  on transferability as the shares of Restricted  Stock
with respect to which they were paid.

        9.6  Termination  of Employment Due to Retirement.   In the
event  that a Participant attains normal retirement age  under  the
Company's  Salaried  Employees  Retirement  Plan,  the  Period   of
Restriction   applicable  to  the  Restricted  Stock  pursuant   to
Subsection 9.2 hereof shall automatically terminate and, except  as
otherwise  provided  in Subsection 9.3, the  shares  of  Restricted
Stock   shall   thereby   be  free  of  restrictions   and   freely
transferable.  In  the  event  that a  participant  terminates  his
employment with the Company because of Early Retirement  under  the
Salaried  Employees  Pension Plan, any shares of  Restricted  Stock
still  subject to restrictions shall be forfeited and  returned  to
the  Company;  provided, however, that the Committee  in  its  sole
discretion  may  waive the restrictions remaining  on  any  or  all
shares  of Restricted Stock or add such new restrictions  to  those
shares of Restricted Stock as it deems appropriate.

        9.7  Termination of Employment Due to Death or Disability.  In
the  event a Participant terminates his employment with the Company
because  of  death or Disability during the Period of  Restriction,
the  restrictions  applicable to the  shares  of  Restricted  Stock
pursuant  to Section 9.2 hereof shall terminate automatically  with
respect  to  that  number of shares (rounded to the  nearest  whole
number)  equal to the number of shares of Restricted Stock  granted
to  such Participant multiplied by the number of full months  which
have  elapsed since the date of grant divided by the maximum number
of  full months of the Period of Restriction. All remaining  shares
still  subject to restrictions shall be forfeited and  returned  to
the  Company;  provided, however, that the Committee  in  its  sole
discretion, may waive the restrictions remaining on any or all such
remaining shares.

        9.8  Termination of Employment for Reasons Other Than Death,
Disability   or  Retirement.   In  the  event  that  a  Participant
terminates  his  employment with the Company for any  reason  other
than  those  set  forth in Sections 9.6 and 9.7 hereof  during  the
Period  of Restrictions, then any shares of Restricted Stock  still
subject   to   restrictions  at  the  date  of   such   termination
automatically  shall  be  forfeited and returned  to  the  Company;
provided, however, that, in the event of an involuntary termination
of the employment of a Participant by the Company, the Committee in
its  sole discretion may waive the automatic forfeiture of  any  or
all such shares and/or may add such new restrictions to such shares
of Restricted Stock as it deems appropriate.

Section 10:   Performance Units and Performance Shares

        10.1  Grant  of  Performance  Units  or Performance Shares.
Subject to the provisions of Sections 5 and 6, Performance Units or
Performance Shares may be granted to Participants at any  time  and
from  time  to  time as shall be determined by the  Committee.  The
Committee shall have complete discretion in determining the  number
of   Performance  Units  or  Performance  Shares  granted  to  each
Participant.

        10.2  Value of Performance Units and Performance Shares.  Each
Performance  Unit  and each Performance Share shall  have  a  value
determined  by  the Committee at the time of grant.  The  Committee
shall  set performance goals in its discretion which, depending  on
the extent to which they are met, will determine the ultimate value
of  the  Performance Unit or Performance Share to the  Participant.
The  time  period during which the performance goals  must  be  met
shall be called a performance period and shall be determined by the
Committee.

        10.3  Form and Timing of Payment.  Payment shall be made in
cash,  Stock  or  a  combination  thereof  as  determined  by   the
Committee.  Payment  may be made in a lump sum or  installments  as
prescribed  by the Committee. If any payment is to  be  made  on  a
deferred  basis,  the  Committee may provide  for  the  payment  of
dividend equivalents or interest during the deferral period.

        10.4  Termination of Employment Due to Death, Disability or
Retirement.   In  the case of death, Disability or Retirement,  the
holder  of  a  Performance  Unit  or  Performance  Share  (or   his
beneficiary  in the event of death) shall receive pro rata  payment
based  on  the  number  of months' service during  the  performance
period but based on the achievement of performance goals during the
entire  performance  period. Payment shall  be  made  at  the  time
payments  are  made  to Participants who did not terminate  service
during the performance period.

        10.5  Termination of Employment for Other  Reasons.  In the
event that a Participant terminates employment with the Company for
any   reason  other  than  death,  Disability  or  Retirement,  all
Performance  Units  and  Performance  Shares  shall  be  forfeited;
provided,  however, that in the event of an involuntary termination
of  the employment of the Participant by the Company, the Committee
in   its   sole  discretion  may  waive  the  automatic  forfeiture
provisions and pay out on a pro rata basis as set forth in  Section
10.4.

        10.6  Non-Transferability.  No Performance Units or Performance
Shares  granted  under the Plan may be sold, transferred,  pledged,
assigned or otherwise alienated or hypothecated, otherwise than  by
will  or by the laws of descent and distribution or pursuant  to  a
domestic  relations order until the termination of  the  applicable
performance  period. All rights with respect to  Performance  Units
and  Performance  Shares granted to a Participant  under  the  Plan
shall be exercisable only by such Participant during his lifetime.

Section 11:   Discounted Stock Options

        11.1  Grant  of  Discounted Stock Options.   Subject to the
provisions  of  Sections  5  and 6 of the  Plan,  Discounted  Stock
Options  may be granted to Participants hereunder. Such  Discounted
Stock  Options shall satisfy each of the requirements set forth  in
Section  7 hereof, and the other provisions of this Plan which  are
applicable to Option awards which are not intended to be  incentive
stock  options (except Section 7.3 of the Plan which  requires  the
exercise  price  of an Option to be not less than the  Fair  Market
Value of the Stock covered by the Option).

        11.2  Pricing of Discounted Stock Options.  The exercise price
of  a  Discounted Stock Option shall be determined by the Committee
and  set  forth in the stock option agreement with the Participant,
but  in no event shall such price be less than the greater of $1.00
or  25  percent (25%) of the Fair Market Value of the Stock covered
by the Option on the date the Discounted Stock Option is granted.

Section 12:   Beneficiary Designation

        12.1  Beneficiary Designation.  Each Participant under the Plan
may  name, from time to time, any beneficiary or beneficiaries (who
may  be  named  contingently or successively) to whom  any  benefit
under  the  Plan  is  to be paid in case of  his  death  before  he
receives  any or all of such benefit. Each designation will  revoke
all  prior designations by the same Participant, shall be in a form
prescribed by the Committee, and will be effective only when  filed
by  the  Participant  in  writing with  the  Committee  during  his
lifetime.  In  the  absence  of  any  such  designation,   benefits
remaining  unpaid at the Participant's death shall be paid  to  his
estate.

Section 13:   Rights of Employees

        13.1  Employment.  Nothing in the Plan shall interfere with or
limit  in  any  way  the  right of the  Company  to  terminate  any
Participant's  employment  at  any  time,  nor  confer   upon   any
Participant any right to continue in the employ of the Company.

        13.2  Participant.   No Employee shall have  a  right to be
selected  as  a  Participant, or, having been so  selected,  to  be
selected again as a Participant.

Section 14:   Change in Control

        14.1  In General.  In the event of a change in control of the
Company as defined in Section 14.2 below, all Awards under the Plan
shall vest 100%. All Performance Units and Performance Shares shall
be paid out based upon the extent to which performance goals during
the  performance period have been met up to the date of the  change
in  control,  or  at target, whichever is higher.  Restrictions  on
Restricted   Stock  shall  lapse.  Options  and  SAR's   shall   be
immediately exercisable by the holder.

        14.2  Definition.   For purposes of the Plan, a  "change in
control" shall mean any of the following events:

         (i)  the  Company receives a report on Schedule 13D  filed
with  the  Securities and Exchange Commission pursuant  to  Section
13(d)  of  the  Exchange  Act disclosing that  any  person,  group,
corporation  or  other entity is the beneficial owner  directly  or
indirectly  of  thirty  percent or more of the  outstanding  Common
Stock of the Company;

         (ii)  any person (as such term is defined in Section 13(d)
of the Exchange Act), group, corporation or other entity other than
the  Company of a wholly-owned subsidiary of the Company, purchases
shares pursuant to a tender offer or exchange offer to acquire  any
common  stock of the Company (or securities convertible into common
stock)  for  cash, securities or any other consideration,  provided
that   after   consummation  of  the  offer,  the  person,   group,
corporation or other entity in question is the beneficial owner (as
such  term  is  defined  in  Rule 13d-3 under  the  Exchange  Act),
directly  or  indirectly,  of  thirty  percent  or  more   of   the
outstanding Common Stock of the Company (calculated as provided  in
paragraph (d) of Rule 13d-3 under the Exchange Act in the  case  of
rights to acquire common stock);

         (iii)  the  stockholders of the Company  approve  (a)  any
consolidation or merger of the Company in which the Company is  not
the continuing or surviving corporation or pursuant to which shares
of  Common Stock would be converted into cash, securities or  other
property,  or  (b) any sale, lease, exchange or other transfer  (in
one  transaction  or a series of related transactions)  of  all  or
substantially all of the assets of the Company; or

         (iv)  there shall have been a change in a majority of  the
members  of the Board of Directors of the Company within a 24-month
period  unless  the  election or nomination  for  election  by  the
Company's  stockholders of each new director was  approved  by  the
vote  of two-thirds of the directors then still in office who  were
in office at the beginning of the 24-month period.

Section 15:   Amendment, Modification and Termination of Plan

        15.1  Amendment, Modification and Termination of  Plan. The
Board at any time may terminate, and from time to time may amend or
modify  the  Plan; provided, however, that any such action  of  the
Board,  shall  be subject to approval of the shareholders,  to  the
extent required by law.

     No amendment, modification or termination of the Plan shall in
any manner adversely affect any Award theretofore granted under the
Plan, without the consent of the Participant.

Section 16:   Tax Withholding

        16.1  Tax Withholding.  The Company shall have the power to
withhold,  or  require a Participant to remit to  the  Company,  an
amount  sufficient to satisfy federal, state and local  withholding
tax requirements on any Award under the Plan.

     To  the  extent permissible  under applicable tax, securities,
and other laws, the Company may, in its sole discretion, permit the
Participant  to satisfy a tax withholding requirement by (i)  using
already  owned  shares,  (ii)  through  a cashless  transaction, or
(iii)  directing the Company to  apply  shares ofstock to which the
Participant is entitled as a result of the exercise of an option or
the lapse of a Period  of Restriction (including, for this purpose,
the filing of an election under Section 83(b) of the Code), to satisfy
such requirement.

       16.2  Disposition of Shares.  In the event that a Participant
shall  dispose  (whether  by  sale,  exchange,  gift  or  any  like
transfer)  of  any shares of Common Stock of the  Company  (to  the
extent  such  shares  are  deemed to be purchased  pursuant  to  an
incentive stock option) acquired by him within two (2) years of the
date  of  grant of the related option or within one (1) year  after
the acquisition of such shares, he will notify the secretary of the
Company  no  later  than fifteen (15) days from the  date  of  such
disposition of the date or dates and the number of shares  disposed
of  by  him  and  the  consideration received, if  any,  and,  upon
notification from the Company, promptly forward to the secretary of
the Company any amount requested by the Company for the purpose  of
satisfying  its  liability, if any, to withhold federal,  state  or
local  income  or  earnings  tax or any  other  applicable  tax  or
assessment (plus interest or penalties thereon, if any,  caused  by
delay   in  making  such  payment)  incurred  by  reason  of   such
disposition.

Section 17:   Indemnification

        17.1  Indemnification.  Each person who is or shall have been
a member  of the Committee or of the Board shall be indemnified and
held  harmless  by  the Company against and from  any  loss,  cost,
liability  or  expense  that  may be  imposed  upon  or  reasonably
incurred  by  him in connection with or resulting from  any  claim,
action,  suit or proceeding to which he may be a party or in  which
he  may be involved by reason of any action taken or failure to act
under the Plan and against and from any and all amounts paid by him
in  settlement thereof, with the Company's approval, or paid by him
in  satisfaction  of  any  judgment in any  such  action,  suit  or
proceeding  against  him, provided he shall  give  the  Company  an
opportunity,  at  its own expense, to handle and  defend  the  same
before he undertakes to handle and defend it on his own behalf. The
foregoing  right of indemnification shall not be exclusive  of  any
other  rights  of  indemnification to which  such  persons  may  be
entitled  under the Company's Articles of Incorporation or  Bylaws,
as a matter of law, or otherwise, or any power that the Company may
have to indemnify them or hold them harmless.

Section 18:   Requirements of Law

        18.1  Requirements of Law.  The granting of Awards  and the
issuance of shares of Stock upon the exercise of an Option shall be
subject  to all applicable laws, rules and regulations and to  such
approvals  by  any  governmental agencies  or  national  securities
exchanges as may be required.

        18.2  Governing Law.  The Plan, and all agreements hereunder,
shall  be construed in accordance with and governed by the laws  of
the State of Arizona.

Section 19:   Funding

        19.1  Funding  of  Plan.  Except in the  case  of Awards of
Restricted Stock, the Plan shall be unfunded. The Company shall not
be required to segregate any of its assets to assure the payment of
any  Award  under the Plan. Neither the Participant nor  any  other
persons  shall  have any interest in any fund or  in  any  specific
asset or assets of the Company or any other entity by reason of any
Award,  except  to  the  extent expressly provided  hereunder.  The
interest  of each Participant and former Participant hereunder  are
unsecured  and  shall be subject to the general  creditors  of  the
Company.

<PAGE>

                                                             APPENDIX B
                                                     FORM OF PROXY CARD


                                UNISOURCE ENERGY

                              Two New Ways to Vote

                         VOTE BY INTERNET OR TELEPHONE

                         24 Hours a Day - 7 Days a Week
                            It's Fast and Convenient


INTERNET
- --------
http://proxy.shareholder.com/uns


- --  Go to the website address listed above.

- --  Have your proxy card ready.

- --  Enter your Control Number located in the box below.

- --  Follow the simple instructions on the website.

                         OR


TELEPHONE
- ---------
1-800-574-6864


- --  Use any touch-tone telephone.

- --  Have your proxy card ready.

- --  Enter your Control Number located in the box below.

- --  Follow the simple recorded instructions.

                         OR


MAIL
- ----

- --  Mark, sign and date your proxy card.

- --  Detach your proxy card.

- --  Return your proxy card in the postage-paid envelope provided.



Your Internet or telephone vote authorizes the named proxies to vote your
shares in the same manner as if you marked, signed and returned your proxy
card.  If you have submitted your proxy by the Internet or telephone there is
no need for you to mail back your proxy card.

                                                1-800-574-6864
                                                CALL TOLL-FREE TO VOTE

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

                                                       CONTROL NUMBER
                                                FOR INTERNET/TELEPHONE VOTING
                                                -----------------------------

THE INTERNET AND TELEPHONE VOTING FACILITIES WILL BE AVAILABLE UNTIL 5:00 P.M.
E.S.T. ON MAY 11, 2000.



  DETACH PROXY CARD HERE IF YOU ARE NOT VOTING BY THE INTERNET OR TELEPHONE
- -------------------------------------------------------------------------------

                         (FORM OF PROXY CARD - FRONT)


THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE FOLLOWING PROPOSALS:

1. Election of Directors

FOR all nominees      WITHHOLD AUTHORITY to vote      *EXCEPTIONS   [ ]
listed below          for all nominees listed
[ ]                   below  [ ]

Nominees: Ira R. Adler, Lawrence J. Aldrich, Larry W. Bickle, Elizabeth T.
          Bilby, Harold W. Burlingame, Jose L. Canchola, John L. Carter,
          Daniel W. L.Fessler, John A. Jeter, James S. Pignatelli,
          Martha R. Seger, H. Wilson Sundt

(INSTRUCTIONS: TO WITHHOLD AUTHORITY TO VOTE FOR ANY INDIVIDUAL NOMINEE, MARK
THE "EXCEPTIONS" BOX AND WRITE THAT NOMINEE'S NAME IN THE SPACE PROVIDED
BELOW).

*Exceptions -------------------------------------------------------------------

2. Amendments to the 1994 Omnibus Stock and Incentive Plan.

FOR  [ ]          AGAINST [ ]          ABSTAIN [ ]

                                                  If you agree to access
                                                  our Annual Report and Proxy
                                                  Statement electronically in
                                                  the future, please mark this
                                                  box.  [ ]



                                                  Change of Address and
                                                  or Comments Mark Here   [ ]


                                        PLEASE SIGN EXACTLY AS NAME APPEARS
                                        HEREON. When shares are held by joint
                                        tenants in common or as community
                                        property, both should sign.  When
                                        signing as attorney, executor,
                                        administrator, trustee, guardian
                                        or custodian, please give full title as
                                        such. If a corporation, please sign
                                        in corporate name by President or other
                                        authorized officer. If a partnership,
                                        please sign in partnership name by
                                        authorized person.  Receipt is
                                        hereby acknowledged of Notice of Annual
                                        Meeting, Proxy Statement and
                                        the 1999 Annual Report.

                                        Dated:                          2000
                                              ------------------------,

                                        ------------------------------------
                                                  Signature

                                        ------------------------------------
                                                  Signature


                                        Votes MUST be indicated
                                        (x) in Black or Blue ink. [X]


Please Sign, Date and Return the Proxy
Promptly Using the Enclosed Envelope.

- -------------------------------------------------------------------------------
PLEASE DETACH HERE
You Must Detach This Portion of the Proxy Card
Before Returning it in the Enclosed Envelope
- -------------------------------------------------------------------------------

                   The Tucson Electric Power Company Building


                     [A street map showing the location of
                  the annual shareholders meeting is set forth
                                in this area.]


                                  Directions

                               From Interstate 10
                        Take Saint Marys Road Exit 257A
                        head east (about 1/16 of a mile)
                              on Saint Marys Road
                      to Main (past the light at Granada)
                          Turn left (north) onto Main
                      and then right into the parking lot.
                              The annual meeting
                               will be held in
                            the 6th story building.


                                           Tucson Electric Power Company
                                           220 West Sixth Street
                                           Tucson, AZ  85701

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

                         (FORM OF PROXY CARD - BACK)


                         UNISOURCE ENERGY CORPORATION

This Proxy is Solicited on Behalf of the Board of Directors of the Company for
                  the Annual Meeting to be held May 12, 2000

                                   P R O X Y

The undersigned hereby appoints James S. Pignatelli and Ira R. Adler, and each
of them, with the power of substitution, to represent and to vote on behalf
of the shareholder all shares of Common Stock which the shareholder is entitled
to vote at the Annual Meeting of Shareholders scheduled to be held in Tuscon
Electric Power Company's Administration building at 220 West Sixth Streeet,
Tucson, Arizona, on May 12, 2000, and at any adjournments thereof, with all
powers the shareholder would possess if personally present and particularly
with respect to Items 1 and 2 and in their discretion, upon such other business
as may properly come before the meeting. This proxy, when properly executed,
will be voted in the manner directed herein by the shareholder. IF NO DIRECTION
IS MADE, THIS PROXY WILL BE VOTED "FOR" ITEMS 1 and 2.

                      (Continued, and to be dated and signed on reverse side.)

                                                 UNISOURCE ENERGY CORPORATION
                                                 C/O THE BANK OF NEW YORK
                                                 P.O. BOX 11030
                                                 NEW YORK, N.Y. 10203-0030


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