UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON D.C.  20549

                               SCHEDULE 14A

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


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     14a-6(e)(2))
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[ ] Soliciting Material Pursuant to Sections 240.14a-11(c) or 240.14a-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)

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                                UNISOURCE ENERGY
                             One South Church Avenue
                             Tucson, Arizona 85701


                                 April 7, 2004

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

Dear Shareholders:

         On March 29, 2004, at a special meeting of our shareholders, we
obtained shareholder approval of the acquisition agreement that provides for an
affiliate of Saguaro Utility Group L.P. to acquire all of our outstanding shares
of common stock for $25.25 per share. The completion of the acquisition still
requires the approval of several regulatory agencies and the satisfaction of the
other closing conditions contained in the acquisition agreement. We expect that
the acquisition will be consummated in the second half of 2004.

         Until the completion of the acquisition, we will continue to function
as a public company. In that regard, it is now appropriate for us to hold the
2004 Annual Shareholders' Meeting for the election of directors. You are
cordially invited to attend the 2004 Annual Shareholders' Meeting to be held on
Friday, May 7, 2004, at the Marriott University Park Hotel, 880 East Second
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 we will consider the matters explained in the enclosed
Proxy Statement.

         We have enclosed a proxy card that lists all matters that require your
vote. Please complete, sign, date and mail 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 enclosed 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





                     NOTICE OF ANNUAL SHAREHOLDERS' MEETING



To the Holders of Common Stock of
UniSource Energy Corporation

         We will hold the 2004 Annual Shareholders' Meeting ("Meeting") of
UniSource Energy Corporation at the Marriott University Park Hotel, 880 East
Second Street, Tucson, Arizona, on Friday, May 7, 2004, at 10:00 a.m., Mountain
Standard Time. The purpose of the Meeting is to:

         1. elect nine directors to our Board of Directors for the ensuing year;
            and

         2. consider any other matters which properly come before the Meeting.

         Only shareholders of record at the close of business on March 29, 2004,
are entitled to vote at the Meeting.

         We have enclosed our 2003 Annual Report, including audited financial
statements, and the Proxy Statement with this notice. Proxy soliciting material
is first being sent or given to shareholders on or about April 7, 2004. Your
proxy is being solicited by our Board of Directors.

         Please complete, sign, date and mail the enclosed proxy card as soon as
possible, or vote by telephone or the Internet, as explained on the enclosed
proxy card.

                                   /s/Catherine A. Nichols
                                   -----------------------
                                   Catherine A. Nichols
                                   Corporate Secretary


Dated: April 7, 2004


                             YOUR VOTE IS IMPORTANT

EACH SHAREHOLDER IS URGED TO COMPLETE, SIGN, DATE AND RETURN PROMPTLY THE
ENCLOSED PROXY CARD BY MAIL, OR TO VOTE BY TELEPHONE OR THE INTERNET, AS
EXPLAINED ON THE ENCLOSED 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.







                          UNISOURCE ENERGY CORPORATION

                            One South Church Avenue
                             Tucson, Arizona 85701

                          ANNUAL SHAREHOLDERS' MEETING
                                 PROXY STATEMENT

         Annual Meeting   May 7, 2004          Marriott University Park Hotel
                          10:00 a.m., MST      880 East Second Street
                                               Tucson, Arizona 85719

            Record Date   The record date is March 29, 2004 ("Record Date").
                          If you were a shareholder of record at the close of
                          business on the Record Date, you may vote at the 2004
                          Annual Shareholders' Meeting ("Meeting") of UniSource
                          Energy Corporation ("UniSource Energy" as well as
                          references to "we," "our" and "us"). At the close of
                          business on the Record Date, we had 34,037,640 shares
                          of common stock outstanding.

                 Agenda   1. Proposal One:  Elect nine directors to our Board of
                             Directors ("Board")for the ensuing year.

                          2. 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 respond to
                          appropriate questions from our shareholders.

                Proxies   A form of proxy for execution by shareholders
                          is enclosed. Unless you tell us on the proxy
We will follow your       card to vote differently, we will vote signed
voting instructions.      returned proxies "for" the Board's nominees.
If none, we will          The Board or proxy holders will use their discretion
vote signed proxies       on other matters that properly come before the
"for" the nominees.       Meeting. 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.

     First Mailing Date   We anticipate first mailing this Proxy Statement along
                          with the proxy on or about April 7, 2004.

    Revoking Your Proxy   You may revoke your proxy before it is voted at the
                          Meeting. To revoke, follow the procedures listed on
                          page 2 under "Voting Procedures/Revoking Your Proxy."

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

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

                                       1




                                    CONTENTS


                                                                           
Voting Procedures/Revoking Your Proxy.......................................   2
Proposed Acquisition of UniSource Energy....................................   3
UniSource Energy Share Ownership............................................   4
Proposal One: Election of Directors*........................................   7
Board Information...........................................................   9
Board Compensation..........................................................  10
Executive Compensation and Other Information**..............................  12
Equity Compensation Plan Information........................................  15
Effect of Proposed Acquisition on Compensation..............................  18
Director Independence Criteria..............................................  22
Transactions with Management and Others.....................................  23
Compensation Committee Interlocks and Insider Participation.................  23
Compensation Committee Report on Executive Compensation.....................  23
Audit Committee Report......................................................  26
Performance Graph**.........................................................  28
Submission of Shareholder Proposals.........................................  29
Other Business..............................................................  29
Appendix A.................................................................. A-1
Appendix B.................................................................. B-1
Appendix C.................................................................. C-1

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

*   We expect to vote on this item 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 Securities and Exchange Commission ("SEC"), even if those reports
    incorporate all or any part of this Proxy Statement.


                     VOTING PROCEDURES/REVOKING YOUR PROXY

You can vote by           You can vote your shares by telephone, the Internet,
by telephone, the         mail or in person a the Meeting. Your proxy card
Internet, mail or in      contains instructions for voting by telephone or the
person. We encourage      Internet, which are the least expensive and fastest
you to vote by            methods of voting. To vote by mail, complete, sign and
telephone or the          date your proxy card, or your broker's voting
Internet to help us       instruction card if your shares are held by your
save money.               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.


                                       2



                          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     In the election of directors, each shareholder has
votes for directors.      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. For any other matter that may properly
                          come before the Meeting, each share of common stock
                          will be entitled to one vote.

You can revoke your       Any shareholder giving a proxy has a right to revoke
proxy after sending       that proxy by giving notice to UniSource Energy in
it in by following        writing directed to the Corporate Secretary, UniSource
these procedures.         Energy Corporation, One South  Church Avenue, Suite
                          1820, Tucson, Arizona 85701, or in person at the
                          Meeting at any time before the proxy is exercised.
                          Those who fail to return a proxy or fail to 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 or withheld in
                          accordance with the specifications in the proxy. If no
                          specification is made in an executed proxy, the proxy
                          will be voted in favor of the nominees 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 DF King & Co.,
                          Inc., at a cost of approximately $7,500 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.

                    PROPOSED ACQUISITION OF UNISOURCE ENERGY

                          On November 21, 2003, we entered into an
                          acquisition agreement with an affiliate of Saguaro
                          Utility Group L.P., an Arizona limited partnership
                          ("Saguaro Utility"). The acquisition agreement
                          provides for the affiliate of Saguaro Utility to
                          acquire all of our outstanding shares of common
                          stock for $25.25 per share. Saguaro Utility will
                          merge its affiliate with and into us. We will
                          survive the merger as a wholly owned indirect
                          subsidiary of Saguaro Utility. Trading in our
                          common stock on the New York Stock Exchange and the
                          Pacific Stock Exchange will cease immediately as of
                          the effective time of the acquisition. After that
                          time, the surviving corporation will delist our
                          shares from the New York Stock Exchange and the
                          Pacific Stock Exchange and deregister our shares
                          under the Securities Exchange Act of 1934, as
                          amended (the "Exchange Act"). Our headquarters will

                                       3



                          remain in Tucson, and we expect that our senior
                          management team will remain generally in place. We
                          received shareholder approval of the acquisition
                          agreement on March 29, 2004. The completion of the
                          acquisition still requires the approval of several
                          regulatory agencies and the satisfaction of the
                          other closing conditions contained in the
                          acquisition agreement. We expect that the
                          acquisition will be consummated in the second half
                          of 2004. See "Effect of Proposed Acquisition on
                          Compensation" on page 18 of this Proxy Statement.

                        UNISOURCE ENERGY SHARE OWNERSHIP

               Security   The following table sets forth the number and
              Ownership   percentage of shares beneficially owned as of the
          of Management   Record Date and the nature of such ownership by each
                          of our directors (all of which are nominees), our
                          Chief Executive Officer and our five other most highly
                          compensated executive officers at December 31, 2003
                          (the "Named Executives") and all directors and
                          officers as a group. Ownership includes direct and
                          indirect (beneficial) ownership, as defined by the SEC
                          rules.



                               Name and Amount and
            Title                  Title of                         Nature of Beneficial          Percent
          of Class              Beneficial Owner                         Ownership (1)           of Class
          --------            --------------------                  --------------------         --------
                                                                                        
           Common         James S. Pignatelli                            744,282 (2)             2.2%
                          Chairman, President and
                          Chief Executive Officer

           Common         Lawrence J. Aldrich                              9,624 (3)              *
                          Director

           Common         Larry W. Bickle                                 15,564 (4)              *
                          Director

           Common         Elizabeth T. Bilby                              13,625 (5)              *
                          Director

           Common         Harold W. Burlingame                            12,225 (4)              *
                          Director

           Common         John L. Carter                                  22,371 (6)              *
                          Director

           Common         Robert A. Elliott                                  405
                          Director

           Common         Kenneth Handy                                    6,359 (7)              *
                          Director

           Common         Warren Y. Jobe                                   4,359 (7)              *
                          Director

           Common         Steven J. Glaser                               199,679 (8)              *
                          Senior Vice President and
                          Chief Operating Officer, Transmission
                          & Distribution - Tucson Electric
                          Power Company ("TEP")

           Common         Dennis R. Nelson                               198,300 (9)              *
                          Senior Vice President and Chief Operating
                          Officer - UniSource Energy Services, Inc.
                          ("UES")



                                       4






                               Name and Amount and
            Title                  Title of                         Nature of Beneficial          Percent
          of Class              Beneficial Owner                         Ownership (1)           of Class
          --------            --------------------                  --------------------         --------
                                                                                           
           Common         Michael J. DeConcini                              145,023 (10)             *
                          Senior Vice President, Investments
                          and Planning / Senior Vice President
                          and Chief Operating Officer,
                          Energy Resources - TEP

           Common         Kevin P. Larson                                   126,210 (11)             *
                          Vice President, Chief Financial Officer and
                          Treasurer

           Common         Vincent Nitido, Jr.                               149,303 (12)             *
                          Vice President, General Counsel and Chief
                          Administrative Officer

           Common         All directors and executive officers as a       2,078,620 (13)            6.1%
                          group
-------------------

*     Represents less than 1% of the outstanding common stock of UniSource
      Energy.
  (1) Amounts include the following:
      o  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 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.
      o  Shares subject to options exercisable within 60 days, based on
         information from E*Trade, UniSource Energy's stock option plan
         administrator. On March 29, 2004, upon the approval of the acquisition
         agreement by our shareholders, a change of control occurred for
         purposes of the outstanding stock options under the UniSource Energy
         Corporation 1994 Omnibus Stock and Incentive Plan, with the effect of
         making all outstanding stock options of officers and managers
         immediately exercisable.
      o  Equivalent  share  amounts  allocated  to the  individuals'  401(k)
         Plan which,  since June 1, 1998,  has included a UniSource Energy Stock
         Fund investment option.
  (2) Includes 715,188 shares subject to options exercisable within 60 days, and
      15,019 shares purchased under the 401(k) Plan UniSource Energy Stock Fund
      as of March 29, 2004.
  (3) Includes 6,120 shares subject to options exercisable within 60 days.
  (4) Includes 9,320 shares subject to options exercisable within 60 days.
  (5) Includes 12,920 shares subject to options exercisable within 60 days.
  (6) Includes 11,720 shares subject to options exercisable within 60 days.
  (7) Includes 3,454 shares subject to options exercisable within 60 days.
  (8) Includes 189,872 shares subject to options exercisable within 60 days, and
      2,511 shares purchased under the 401(k) Plan UniSource Energy Stock Fund
      as of March 29, 2004.
  (9) Includes 183,531 shares subject to options exercisable within 60 days, and
      8,257 shares purchased under the 401(k) Plan UniSource Energy Stock Fund
      as of March 29, 2004.
 (10) Includes 135,350 shares subject to options exercisable within 60 days, and
      4,815 shares purchased under the 401(k) Plan UniSource Energy Stock Fund
      as of March 29, 2004.
 (11) Includes 107,168 shares subject to options exercisable within 60 days, and
      2,292 shares purchased under the 401(k) Plan UniSource Energy Stock Fund
      as of March 29, 2004.
 (12) Includes 141,593 shares subject to options exercisable within 60 days, and
      3,940 shares purchased under the 401(k) Plan UniSource Energy Stock Fund
      as of March 29, 2004.
 (13) Includes 1,913,920 shares subject to options exercisable within 60 days,
      and 43,485 shares purchased under the 401(k) Plan UniSource Energy Stock
      Fund as of March 29, 2004.


                                       5



               Security   As of March 29, 2004, based on information reported
           Ownership of   in filings made by the following persons with  the
     Certain Beneficial   SEC or information otherwise known to us, the
                 Owners   following persons were known or reasonably believed to
                          be, as more fully described below, the beneficial
                          owners of more than 5% of our commonstock:


                                                                                    Amount and
                                          Name and Address                          Nature of                      Percent
       Title of Class                    of Beneficial Owner                   Beneficial Ownership                of Class
       --------------                    -------------------                   --------------------                --------
                                                                                                            
           Common             T. Rowe Price Associates, Inc.                       3,237,005 (1)                     9.6%
                              100 E. Pratt Street
                              Baltimore, MD 21202
           Common             Gabelli Asset Management Inc.                        2,781,599 (2)                     8.3%
                              One Corporate Center
                              Rye, NY 10580-1435
           Common             White Mountains Insurance Group                      1,798,100 (3)                     5.3%
                              80 South Main Street
                              Hanover, NH 03755
           Common             BNP Paribas, SA                                      1,796,010 (4)                     5.3%
                              16 Boulevard des Italiens
                              75009 Paris, France
           Common             Barclays Private Bank Limited 59/60                  1,718,794 (5)                     5.1%
                              Grosvenor Street
                              London, WIX 9DA England
-------------------

(1)  In a statement (Schedule 13G/A) filed with the SEC on February 11, 2004, T.
     Rowe Price Associates, Inc. ("Price Associates") indicated it has sole
     voting power over 475,705 shares and sole dispositive power over 3,237,005
     shares of our common stock. Price Associates stated that 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 the
     beneficial owner of such securities; however, Price Associates expressly
     disclaimed that it is, in fact, the beneficial owner of such securities.
(2)  In a statement (Schedule 13D/A) filed with the SEC on March 5, 2004,
     Gabelli Asset Management Inc. and its affiliates ("Gabelli") indicated that
     they have sole voting power over 2,716,599 shares and sole dispositive
     power over 2,781,599 shares of our common stock. Gabelli stated that the
     shares are beneficially owned by Gabelli Funds, LLC (1,148,300 shares),
     GAMCO Investors, Inc. (1,266,899 shares), Gabelli Securities, Inc. (354,400
     shares), Gabelli Foundation, Inc. (10,000 shares) and MJG Associates, Inc.
     (2,000 shares).
(3)  In a statement (Schedule 13G/A) filed with the SEC on February 13, 2004,
     White Mountains Insurance Group ("WMIG") indicated that it has shared
     voting and shared dispositive power over 1,798,100 shares of our common
     stock. WMIG indicated that it indirectly controls, through various
     wholly-owned subsidiaries and certain of its employee benefit plans,
     1,798,100 shares. WMIG stated that the shares are beneficially owned by
     OneBeacon Insurance Company (190,000 shares), The Camden Fire Insurance
     Association (800,000 shares), Folksamerica Reinsurance Company (143,100
     shares) and certain employee benefit plans sponsored by OneBeacon Insurance
     Company (665,000 shares). WMIG further stated that, through an investment
     advisory agreement, White Mountains Advisors, LLC has sole voting and sole
     dispositive power over such shares.
(4)  In a statement (Schedule 13G) filed with the SEC on February 27, 2004, BNP
     Paribas, SA (BNP) indicated that it has sole voting and sole dispositive
     power over 1,796,010 shares of our common stock.
(5)  In a statement (Schedule 13G) filed with the SEC on February 17, 2004,
     Barclays Private Bank Limited ("Barclays") indicated that it has sole
     voting and sole dispositive power over 1,551,851 shares of our common
     stock. The filing indicated that the 1,718,794 shares are beneficially
     owned by Barclays Global Investors (974,374 shares), Barclays Global Fund
     Advisors (594,020 shares) and Barclays Capital Securities Limited (150,400
     shares).


                                       6



          Section 16(a)   Section 16(a) of the Exchange Act and SEC
             Beneficial   regulations require directors, certain officers and
              Ownership   persons who own greater than 10% of our stock to file
              Reporting   reports of ownership and changes in  ownership of
             Compliance   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 2003.

                      PROPOSAL ONE: ELECTION OF DIRECTORS

                General   At the Meeting, our shareholders of record will
                          elect nine directors to serve on our Board for
                          the ensuing year and until their successors are
                          elected and qualified. The shares represented
                          by executed proxies in the form enclosed, unless
We will elect nine        withheld, will be voted for the nine nominees listed
directors this year.      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. 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,  President and Chief Executive
             Pignatelli   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 the Board of Directors, President and
                          Chief Executive Officer of TEP, the principal
                          subsidiary of UniSource Energy, 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
                          to 1998; Chairman of the Board of Directors, President
                          and Chief Executive Officer of Millennium Energy
                          Holdings, Inc. ("Millennium"),  a wholly owned
                          subsidiary of UniSource Energy, since 1997. Board
                          member since 1998. Age 60.

            Lawrence J.   General Partner, Valley Ventures III, LP, since
                Aldrich   September 2002; Managing Director and Founder, Tucson
                    (4)   Ventures, LLC, from February 2000 to September 2002;
                          President and Chief Executive Officer of Tucson
                          Newspapers from January 1992 to February 2000;
                          Director of TEP and Millennium since 2000. Board
                          member since 2000. Age 51.

        Larry W. Bickle   Managing Director of Haddington Ventures, LLC, an
                    (4)   investment company, since 1997; Director of St. Mary
                          Land and Exploration since 1995; Director of
                          Millennium since 1998. Board member since 1998. Age
                          58.

           Elizabeth T.   President of Gourmet Products, Inc., an agricultural
                  Bilby   product  marketing  company;  Director of Marketing of
              (1)(2)(3)   Green Valley  Pecans since 1982.  Director of TEP
                          since 1995;  Director of  Millennium from 1998-2003.
                          Board member since 1995. Age 64.

                                       7



              Harold W.   Senior  Executive  Advisor for AT&T Wireless Services
             Burlingame   since July 2001;  Executive Vice  President,
                 (1)(3)   Communications and Human Resources of AT&T Wireless
                          Services from April 2000 to June 2001; Executive Vice
                          President, Merger and Joint Venture Integration of
                          AT&T from March 1999 to March 2000; Executive Vice
                          President of Human Resources of AT&T from 1987 to
                          March 1999; Member of the AT&T Foundation from
                          November 1986 to December 2002; Chair, Executive
                          Committee, Organization Resources Counselors since
                          June 1999; Director of TEP since 1998. Board member
                          since 1998. Age 63.

         John L. Carter   Retired as General  Manager  of the  Tucson,  Arizona
         (1)(2)(3)(4)     office of IBM in 1987.  President  and Chief
                          Executive Officer of Qualtronics  Manufacturing, Inc.
                          from 1987 to 1993. Retired as Executive Vice
                          President and Chief Financial Officer of
                          Burr-Brown Corporation in 1996. Director of TEP
                          since 1996; Director of Millennium since 1998.
                          Board member since 1996. Age 69.

      Robert A. Elliott   President and owner of The Elliott Accounting Group
                 (2)(3)   since 1983; Television Analyst/Pre-game Show Co-host
                          for Fox Sports Arizona since 1999; Radio Host of "In
                          the Paint" Sports Talk Show for KFNN 1490 AM from 2000
                          to 2002; Studio Expert Television Analyst for Cox
                          Sports/Phoenix Suns from 1999 to 2001; Corporate
                          Secretary of Southern Arizona Community Bank since
                          1999; Director and Minority Shareholder of Southern
                          Arizona Community Bank since 1998; Director of Tucson
                          Urban League since 1998; Treasurer of Tucson Urban
                          League since 2002; Director of TEP since May 2003.
                          Board member since 2003. Age 48.

          Kenneth Handy   Retired CPA; Vice President and Chief Financial
              (1)(2)(3)   Officer of The Permanente Medical Group, Inc. (the
                          physician services component of the Kaiser Permanente
                          Medical Care Program in Northern California)from 1978
                          to 1998; Partner at Ernst & Ernst (now Ernst & Young)
                          from 1972 to 1978; Director of TEP since 2001;
                          Director of Millennium from 2001 to 2003. Board member
                          since August 2001. Age 65.

         Warren Y. Jobe   Retired CPA; Senior Vice President of Southern Company
              (2)(3)(4)   from 1998 to 2001; Executive Vice President and Chief
                          Financial Officer and member of the Board of Directors
                          of Georgia Power Company from 1982 to 1998; former
                          President of the Georgia Power  Foundation Inc. from
                          1986 to 2001;  Member of the Board of Directors of
                          Wellpoint Health Networks,  Inc. since 2001;  Director
                          of TEP since 2001; Director of Millennium from 2001 to
                          2003. Board member since August 2001. Age 63.
-------------------

(1) Member of the Corporate Governance and Nominating Committee.
(2) Member of the Audit Committee.
(3) Member of the Compensation Committee.
(4) Member of the Finance Committee.

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

                                       8



                               BOARD INFORMATION

         Board Meetings   In 2003, the Board held a total of 13 regular and
                          special meetings. Each director attended at least 75%
                          of his or her Board and committee meetings.

       Board Committees   THE AUDIT COMMITTEE selects a firm of independent
                          certified public accountants to audit annually
                          our financial  statements,  reviews current and
                          projected financial results of operations,  reviews
                          and discusses the scope of such audit,  receives and
                          reviews the audit reports and recommendations,
                          transmits its recommendations to the Board,  reviews
                          our accounting and internal control procedures with
                          our internal audit  department  from time to time and
                          makes recommendations  to the Board for any changes
                          deemed necessary in such  procedures,  and performs
                          such other functions  delegated by the  Board.  Our
                          Audit Committee  held 12  meetings  in 2003 and was in
                          full compliance with its written charter.

                          Upon the recommendation of the Audit Committee, our
                          Board adopted a code of ethics for our senior
                          financial officers, including our Chief Executive
                          Officer, Chief Financial Officer and Controller. A
                          copy of this code of ethics can be obtained on our
                          website at the following website address:
                          http://www.unisourceenergy.com.

                          THE COMPENSATION COMMITTEE reviews the performance of
                          our directors and officers and reviews and approves
                          directors' and officers' compensation. Our
                          Compensation Committee held six meetings in 2003 and
                          was in full compliance with its written charter,
                          which is attached to this Proxy Statement as Appendix
                          A.

                          THE FINANCE COMMITTEE reviews and recommends to the
                          Board long-range financial policies, 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 2003.

                          THE CORPORATE GOVERNANCE AND NOMINATING COMMITTEE
                          reviews and recommends corporate governance
                          principles, interviews potential directors, and
                          nominates and recommends to the shareholders and
                          directors, as the case may be, qualified persons to
                          serve as directors. The Corporate Governance and
                          Nominating Committee also reviews and recommends
                          membership for all the committees to the Board and
                          reviews applicable rules and regulations relating to
                          the duties and responsibilities of the Board. The
                          Corporate Governance and Nominating Committee held
                          four meetings in 2003 and was in full compliance with
                          its written charter, which is attached to this Proxy
                          Statement as Appendix B.

                          The Corporate Governance and Nominating Committee
                          identifies and considers nominee candidates supplied
                          by shareholders and Board members. The Corporate
                          Secretary, as directed by the Corporate Governance
                          and Nominating Committee, prepares portfolios for
                          nominee candidates that include confirmation of the
                          candidate's interest, independence, biographical
                          information, review of business background and
                          experience and reference checks. The Corporate
                          Governance and Nominating Committee then evaluates
                          candidates using, in large part, the criteria set
                          forth in the next paragraph and any other criteria
                          the Committee deems appropropriate, and conducts a
                          personal interview with each

                                       9


                          candidate. Upon completion of this process, formal
                          invitations are extended to accept election to the
                          Board.

                          The Corporate Governance and Nominating Committee has
                          not adopted specific, minimum qualifications with
                          respect to a Committee-recommended Board nominee, but
                          desirable qualifications are set forth in the Board
                          manual and include prior community, professional or
                          business experience that demonstrates leadership
                          capabilities, the ability to review and analyze
                          complex business issues, the ability to effectively
                          represent the interests of our shareholders while
                          keeping in perspective the interests of our
                          customers, the ability to devote the time and
                          interest required to attend and fully prepare for all
                          regular and special Board meetings, the ability to
                          communicate and work effectively with the other Board
                          members and personnel and the ability to fully adhere
                          to any applicable laws, rules or regulations relating
                          to the performance of a director's duties and
                          responsibilities.

                          While no formal policy exists, the Corporate
                          Governance and Nominating Committee does consider
                          recommendations for Board nominees received from our
                          shareholders. The deadline for consideration of
                          recommendations for next year's annual meeting of the
                          shareholders is December 10, 2004 (assuming that the
                          acquisition of UniSource Energy is not completed
                          prior to such date). Recommendations must be in
                          writing and 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, One South Church Avenue, Suite 1820,
                          Tucson, Arizona 85701. In light of the acquisition of
                          UniSource Energy, the Board does not believe it is
                          appropriate to adopt a formal policy at this time.

                          Each member of our Audit Committee, Compensation
                          Committee and Corporate Governance and Nominating
                          Committee is independent based upon independence
                          criteria established by our Board, which criteria is
                          in compliance with applicable New York Stock Exchange
                          listing standards.

                               BOARD COMPENSATION

               Retainer   In 2003, each non-employee director received
               and Fees   a $20,000 annual cash retainer, $1,000 for each Board
                          meeting attended, $1,000 for each committee meeting
                          attended and an additional $1,000 per committee
                          meeting if acting as a committee chairperson. We
                          reimburse directors for any expenses related to their
                          Board and committee service.

              Effect of   See "Effect of Proposed Acquisition on Compensation"
               Proposed   beginning on page 18 of this Proxy Statement  for a
            Acquisition   discussion of the effect of the proposed acquisition
                          of UniSource Energy on compensation of our Board
                          members.

                                       10




             Option and   Under the terms of the 1994 Outside Director Stock
             Restricted   Option Plan, each non-employee director in  office on
           Share Grants   the first business day of each year, and who has been
                          a director for at least three months, is granted a
                          stock option covering a number of shares of our common
                          stock equal to $10,000 divided by the value of an
                          option as of the date of grant. Option values are
                          determined using the Black Scholes option value model.
                          The exercise price of the options is the fair market
                          value of our shares on the grant date. The options
                          vest in one-third increments on the grant date
                          anniversary, and expire in ten years, provided,
                          however, that all of these options will be cancelled
                          and paid in cash upon the consummation of the
                          acquisition.

                          Each non-employee director in office on the first
                          business day of each year is granted a number of
                          restricted shares of our common stock equal to
                          $10,000 divided by the then fair market value of a
                          share of our common stock. Restricted shares vest on
                          the third anniversary of the grant date, provided,
                          however, that all shares subject to restricted stock
                          awards outstanding will vest free of restrictions
                          upon the consummation of the acquisition.

                          On January 2, 2003, each of the non-employee
                          directors, with the exception of Mr. Elliott,
                          received options to purchase 2,358 shares of our
                          common stock at an exercise price of $17.44, and 573
                          restricted shares of our common stock. Mr. Elliott
                          received options to purchase 1,196 shares of our
                          common stock at an exercise price of $17.84 when he
                          took office on May 9, 2003.

                   DIRECTOR COMPENSATION FOR LAST FISCAL YEAR


                                                Cash Compensation                           Security Grants
                                       ----------------------------------       ---------------------------------------
                                                                                 Number of Shares        Number of
                                         Annual                                     Subject to           Securities
                                        Retainer               Meeting          Restricted Stock     Underlying Options
            Name (1)                   Fee ($) (2)           Fees ($) (2)             Award
            --------                   -----------           ------------       -----------------    ------------------
                                                                                             
Lawrence J. Aldrich                      20,000                  22,000 (3)            573                  2,358
Larry W. Bickle                          20,000                  19,000 (3)(4)         573                  2,358
Elizabeth T. Bilby                       20,000                  43,000                573                  2,358
Harold W. Burlingame                     20,000                  42,000                573                  2,358
John L. Carter                           20,000                  65,000 (3)(4)         573                  2,358
Robert A. Elliott                        15,000                  35,000                 --                  1,196
Daniel W. L. Fessler (5)                 15,000                  19,000 (3)            573                  2,358
Kenneth Handy                            20,000                  50,000                573                  2,358
Warren Y. Jobe                           20,000                  61,000                573                  2,358
H. Wilson Sundt (6)                       6,666                  16,000                573                  2,358
-------------------

(1)  Mr. Pignatelli is not listed in this table because directors who are
     officers of UniSource Energy or salaried employees of its subsidiaries do
     not receive compensation in their capacity as members of the Board. Refer
     to the Summary Compensation Table for information concerning his
     compensation.
(2)  Cash compensation includes amounts earned but deferred at the election of
     directors.
(3)  As members of the Global Solar Energy, Inc. ("GSE") board, Mr. Aldrich, Mr.
     Carter and Mr. Fessler each received an additional $4,000 and Mr. Bickle
     received an additional $1,000 for attending GSE board meetings during 2003.
     UniSource Energy owns 99% of GSE.
(4)  As members of the Infinite Power Solutions, Inc. ("IPS") board, Mr. Bickle
     received an additional $5,000 and Mr. Carter received an additional $6,000
     for attending IPS board meetings during 2003. UniSource Energy owns 72% of
     IPS.
(5)  Mr. Fessler resigned from the Board on September 30, 2003. (6) Mr. Sundt
     retired from the Board on May 9, 2003.
(6)  Mr. SUndt retired from the Board on May 9, 2003.


                                       11



                  EXECUTIVE COMPENSATION AND OTHER INFORMATION

                Summary   See "Effect of The Proposed Acquisition on
        of Compensation   Compensation" beginning on page 18 of this Proxy
                          Statement for a discussion of the effect of the
                          proposed acquisition of UniSource Energy and
                          related shareholder approval on certain compensation
                          of our executive officers.

                          The following table summarizes the compensation and
                          stock option grants to, and stock options/stock
                          appreciation rights ("SARs") held by the Named
                          Executives.


                           SUMMARY COMPENSATION TABLE

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

                                                                                                  
James S. Pignatelli                2003        599,327        550,000           --               21,226               12,000
Chairman, President and            2002        574,654        320,000           --              150,000               11,000
Chief Executive Officer            2001        559,423        580,000           --              150,000               10,500

Steven J. Glaser                   2003        274,596        166,000           --                9,729               11,232
Senior Vice President and Chief    2002        259,654        110,000           --               45,000               11,000
Operating Officer, Transmission    2001        244,231        132,000           --               54,000               10,500
& Distribution - TEP

Dennis R. Nelson                   2003        269,732        150,000           --                9,552               12,000
Senior Vice President and Chief    2002        260,000         90,000           --               45,000               11,000
Operating Officer - UES            2001        259,712        117,000           --               34,000               10,500

Michael J. DeConcini               2003        229,192        145,000           --                8,137               10,314
Senior Vice President,             2002        199,654         72,000           --               40,000               11,000
Investments and Planning /         2001        184,519         97,125           --               30,000               10,500
Senior Vice President and Chief
Operating Officer, Energy
Resources - TEP

Kevin P. Larson                    2003        219,462        145,000           --                7,783                9,876
Vice President, Chief Financial    2002        199,656         76,000           --               35,000               11,000
Officer and Treasurer              2001        184,519        113,000           --               20,000               10,500

Vincent Nitido, Jr.                2003        219,462        145,000           --                7,783                9,876
Vice President, General Counsel    2002        199,654         68,000           --               40,000               11,000
and Chief Administrative Officer   2001        184,519         97,125           --              35,000                10,500

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

(1)  As of December 31, 2003, based on the closing market price of UniSource
     Energy's stock on that date of $24.66, Mr. Pignatelli held 108,053 stock
     units (including dividend equivalent stock units) valued at $2,664,587; Mr.
     Glaser held 27,280 stock units (including dividend equivalent stock units)
     valued at $672,725; Mr. Nelson held 24,016 stock units (including dividend
     equivalent stock units) valued at $592,235; Mr. DeConcini held 23,729 stock
     units (including dividend equivalent stock units) valued at $585,157; Mr.
     Larson held 12,953 stock units (including dividend equivalent stock units)
     valued at $319,421; and Mr. Nitido held 15,951 stock units valued at
     $393,352.
(2)  All Other Compensation is comprised of UniSource Energy's contributions to
     the 401(k) Plan and Excess 401(k) contributions to the UniSource Energy
     Corporation Management and Directors Deferred Compensation Plan.


                                       12




           Stock Option   During 2003, the Compensation Committee of our Board
         Grants in 2003   granted stock options to officers. The options
                          have exercise prices equal to the fair market
                          value of our common stock at the date of
                          grant, and were intended to be incentive stock
                          options under, and to the maximum extent
                          permitted by, the Internal Revenue Code of 1986,
                          as amended ("Code"). These options would have
                          vested ratably over a three-year period,
                          provided, however, that all of these options
                          vested and became immediately exercisable upon
                          the approval of the acquisition agreement by our
                          shareholders on March 29, 2004. The aggregate
                          number of UniSource Energy shares attributable to
                          the 2003 grants is 97,818.

                          The following table includes our 2003 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 the 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
                          and its subsidiaries can influence those future
                          share values.


                                                 OPTION/SAR GRANTS IN LAST FISCAL YEAR
                                                           Individual Grants


                                 Number of         Percent of                                     Potential Realizable Value
                                 Securities       Total Options/                                    at Assumed Annual Rates
                                 Underlying      SARs Granted to                                  of Stock Price Appreciation
                                Options/SARs        Employees        Exercise      Expiration           for Option Term
            Name                   Granted        in Fiscal Year   Price ($/Sh)       Date             5% ($)          10%($)
            ----                -----------      ---------------   ------------   ----------           ------          ------
                                                                                                   
James S. Pignatelli                 21,226             21.7%           17.84         5/9/13           238,145         603,506
Steven J. Glaser                     9,729              9.9%           17.84         5/9/13           109,154         276,618
Dennis R. Nelson                     9,552              9.8%           17.84         5/9/13           107,169         271,586
Michael J. DeConcini                 8,137              8.3%           17.84         5/9/13            91,293         231,354
Kevin P. Larson                      7,783              8.0%           17.84         5/9/13            87,321         221,290
Vincent Nitido, Jr.                  7,783              8.0%           17.84         5/9/13            87,321         221,290


         Option and SAR   The following table includes the number and value of
         Holdings as of   exercisable and non-exercisable options and SARs held
      December 31, 2003   by the Named Executives as of December 31, 2003.

                                       13



                       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 Fiscal         In-the-Money Options/SARs at
                                Acquired                              Year-End (#)                  Fiscal Year End ($)
                               on Exercise        Value               Exercisable/                     Exercisable/
           Name                   (#)           Realized ($)        Unexercisable (1)                Unexercisable (2)
           ----                -----------      ------------     -----------------------         ----------------------------

                                                                                               
James S. Pignatelli                --               --                435,629 / 279,559             4,182,658 / 2,183,048
Steven J. Glaser                   --               --                132,143 / 57,729               1,165,173 / 418,784
Dennis R. Nelson                   --               --                132,646 / 50,885               1,233,979 / 372,369
Michael J. DeConcini               --               --                 63,881 / 71,469                 577,106 / 561,437
Kevin P. Larson                    --               --                 69,386 / 37,782                 636,171 / 277,474
Vincent Nitido, Jr.                                                    68,811 / 72,782                 613,182 / 570,314
-------------------

    (1)  The unexercisable Options/SARs reflected in the foregoing table vested
         and became exercisable upon shareholder approval of the acquisition
         agreement on March 29, 2004.
    (2)  Includes cash dividend equivalents on stock options awarded in 2002
         under the UniSource Energy Corporation Omnibus Stock and Incentive
         Plan.


         2003 Long-Term   The following table includes the number of shares,
         Incentive Plan   units or other rights awarded to the Named Executives
                 Awards   in the last fiscal year under any long-term incentive
                          plan.

                          Payout of the 2003-2005 long-term incentive
                          plan awards will be based on the achievement,
                          during the performance period, of four (4)
                          financial and two (2) operational goals, each
                          on a UniSource Energy basis. The financial
                          goals are total shareholder return, earnings
                          per share, cash flow and equity capitalization.
                          The operational goals are plant availability
                          and customer measures. Each goal has an annual
                          target, and each goal has an exceptional target
                          for 2005. Two points are awarded for the
                          achievement of each annual goal, and two
                          additional points are awarded for achievement
                          of each exceptional target for 2005. The payout
                          will be based on cumulative points for the
                          performance period. There are 48 available
                          points. Threshold performance is achieved at 24
                          points, target performance at 30 points and
                          maximum performance at 37 points.

                                       14





                           LONG-TERM INCENTIVE PLANS
                           AWARDS IN LAST FISCAL YEAR

                                                                             Estimated Future Payouts under
                                Number of           Performance or            Non-Stock Price-Based Plans
                              Shares, Units       Other Period Until         -------------------------------
                               or Other             Maturation or      Threshold           Target            Maximum
      Name                      Rights (#)           Payout (3)         (# or$)            (# or$)           (# or$)
      ----                    --------------      ------------------   ---------           -------           --------
                                                                                  
James S. Pignatelli           18,370 (1)       1/1/03 - 12/31/05          7,564            18,370            29,176
                             189,000 (2)                                $78,000          $189,000          $300,000

Steven J. Glaser               8,420 (1)       1/1/03 - 12/31/05          3,467             8,420            13,372
                              87,000 (2)                                $36,000           $87,000          $138,000

Dennis R. Nelson               8,267 (1)       1/1/03 - 12/31/05          3,404             8,267            13,129
                              85,000 (2)                                $35,000           $85,000          $135,000

Michael J. DeConcini           7,042 (1)       1/1/03 - 12/31/05          2,900             7,042            11,184
                              72,000 (2)                                $30,000           $72,000          $115,000

Kevin P. Larson                6,736 (1)       1/1/03 - 12/31/05          2,774             6,736            10,698
                              69,000 (2)                                $29,000           $69,000          $110,000

Vincent Nitido, Jr.            6,736 (1)       1/1/03 - 12/31/05          2,774             6,736            10,698
                              69,000 (2)                                $29,000           $69,000          $110,000

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


    (1)      Performance shares are denominated in shares of UniSource Energy
             common stock.
    (2)      Performance units are denominated in cash. One performance unit
             equals $1.00.
    (3)      The performance share and performance unit awards reflected in the
             foregoing table vested at target upon shareholder approval of the
             acquisition agreement on March 29, 2004. See table in "Effect of
             Proposed Acquisition on Compensation" on page 18 of this Proxy
             Statement for amount of shares and cash distributed to the Named
             Executives in respect to these awards.


                      EQUITY COMPENSATION PLAN INFORMATION

                 Equity   Our only equity-based compensation plan that has not
           Compensation   been approved by shareholders is the Management and
                  Plans   Directors Deferred Compensation Plan (the "DCP").
                          Shareholder approval of the DCP has not been required.
                          Under the DCP, certain eligible officers and other
                          employees selected for participation, and non-employee
                          members of the Board, may elect to defer a percentage
                          of the compensation or fees that would otherwise
                          become payable to the individual for their services to
                          us. We also credit DCP accounts of employees
                          participating  in our 401(k) Plan with the additional
                          amount of UniSource Energy matching contributions
                          that the participant would have been entitled to
                          under the 401(k) Plan if certain Code limits did not
                          apply to limit the amount of UniSource Energy
                          matching contributions made under the 401(k) Plan.
                          Each participant in the DCP may elect that his
                          or her deferrals be credited in the form of
                          deferred shares. Deferred shares are bookkeeping
                          entries that, when payable, will be paid in the
                          form of an equivalent number of shares of UniSource
                          Energy common stock. Deferred shares accrue dividend
                          equivalents, credited in the form of additional
                          deferred shares, as dividends are paid by UniSource
                          Energy on its issued and outstanding common stock.
                          Each participant elects the time and manner of payment
                          (lump sum or installments) of his or her deferred
                          shares under the DCP. The shares used to satisfy our
                          stock obligations under the DCP are shares
                          that have been purchased on the open market.

                                       15



                         EQUITY COMPENSATION PLAN TABLE

                          The following table sets forth information as of
                          December 31, 2003, with respect to UniSource Energy's
                          equity compensation plans.


                                 Number of Shares of                                 Number of Shares of UniSource Energy
                               UniSource Energy Common                               Common Stock Remaining Available for
                                       Stock to                                          Future Issuance Under Equity
                               be Issued Upon Exercise       Weighted-Average        Compensation Plans (Excluding Shares
                               of Outstanding Options        Exercise Price of                    Reflected
       Plan Category                  and Rights            Outstanding Options              in the First Column)
       -------------           -----------------------      -------------------              --------------------
                                                                                         
Equity Compensation Plans               2,874,397 (2)             $16.04  (3)                     969,931  (4)
Approved by Shareholders (1)

Equity Compensation Plans                  60,203 (5)                 --                               --  (6)
Not Approved by Shareholders

Total                                   2,934,600                     --                               --

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

          (1)  The equity compensation plans approved by shareholders are the
               UniSource Energy Corporation 1994 Omnibus Stock and Incentive
               Plan and the UniSource Energy Corporation 1994 Outside Director
               Stock Option Plan.
          (2)  Includes options outstanding as to 2,482,680 shares, stock units,
               dividend equivalent stock units and restricted stock units
               (payable in an equivalent number of shares) outstanding as to
               257,263 shares, and performance shares outstanding as to 134,454
               shares. See table of "Long-Term Incentive Plans - Awards in Last
               Fiscal Year." Performance shares shown at estimated maximum
               future payout.
          (3)  Calculated based on the outstanding options and exclusive of
               outstanding stock units.
          (4)  Of these shares, 793,654 were available for additional awards
               under the 1994 Omnibus Stock and Incentive Plan and 176,277 were
               available for additional awards under the 1994 Outside Director
               Stock Option Plan. Although 793,654 shares remained available for
               grant under the 1994 Omnibus Stock and Incentive Plan, pursuant
               to the plan document no award may be granted under the Plan after
               February 3, 2004. Shares available under either of these plans
               may be used for any type of award authorized under that plan.
               Awards authorized under the 1994 Omnibus Stock and Incentive Plan
               include options, stock appreciation rights, restricted stock,
               performance shares, and stock units. Awards authorized under the
               1994 Outside Director Stock Plan include options, restricted
               stock, and dividend equivalents. The aggregate amount of shares
               issuable under these plans is subject to certain limitations set
               forth in the acquisition agreement.
          (5)  Reflects an aggregate of 60,203 deferred shares credited under
               the DCP.
          (6)  There is no explicit share limit under the DCP. The number of
               shares to be delivered with respect to the DCP in the future
               depends on the levels of fees and compensation that participants
               elect to defer under the DCP. The UniSource Energy shares used to
               satisfy our stock obligations under the DCP are shares that have
               been purchased on the open market. Similarly, the aggregate
               amount of shares issuable under these plans is subject to certain
               limitations set forth in the acquisition agreement.


          Pension Plans   The following table shows the estimated annual
                          retirement benefit payable to participants, including
                          the Named Executives, for the average annual
                          compensation and years of service indicated.
                          Compensation 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.

                                       16




                                                          PENSION PLAN TABLE

                                                                     Years of Service
                           ---------------------------------------------------------------------------------------------
Remuneration ($)                  10             15              20              25              30              35
                                                                                          
         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
         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         263,280         263,280         263,280
         650,000               285,220         285,220        285,220         285,220         285,220         285,220
         700,000               307,160         307,160        307,160         307,160         307,160         307,160
         750,000               329,100         329,100        329,100         329,100         329,100         329,100
         800,000               351,040         351,040        351,040         351,040         351,040         351,040
         850,000               372,980         372,980        372,980         372,980         372,980         372,980
         900,000               394,920         394,920        394,920         394,920         394,920         394,920
         950,000               416,860         416,860        416,860         416,860         416,860         416,860
       1,000,000               438,800         438,800        438,800         438,800         438,800         438,800
       1,100,000               482,680         482,680        482,680         482,680         482,680         482,680
       1,200,000               526,560         526,560        526,560         526,560         526,560         526,560
       1,300,000               570,440         570,440        570,440         570,440         570,440         570,440
       1,400,000               614,320         614,320        614,320         614,320         614,320         614,320


                       The amount of the pension benefit is equal to a base of
                       40% of the compensation for ten years of service, plus
                       9.7% (life annuity factor) 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 TEP's pension plan and any benefit payments,
                       which may be limited by federal regulations.

                                       17



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


                                                                               Credited
                                                Name                       Years of Service
                                                ----                       ----------------
                                                                                
                                    James S. Pignatelli                            9
                                    Steven J. Glaser                              14
                                    Dennis R. Nelson                              26
                                    Kevin P. Larson                               18
                                    Michael J. DeConcini                          15
                                    Vincent Nitido, Jr.                           13


                 EFFECT OF PROPOSED ACQUISITION ON COMPENSATION

         New Employment   As of the date of this Proxy Statement, no member
           Arrangements   of our management has entered into any amendments
                          or modifications to existing employment agreements
                          with us or our subsidiaries in anticipation of the
                          acquisition. Nor has any member of our management
                          entered into any agreement, arrangement or
                          understanding with Saguaro Utility or its affiliates
                          regarding employment with, or the right to purchase or
                          participate in the equity of, the surviving
                          corporation. Although no such agreement,
                          arrangement or understanding currently exists, it
                          is generally expected that our existing
                          management will remain after the acquisition is
                          completed, which means that members of our
                          existing management may, prior to the closing of
                          the acquisition, enter into new arrangements with
                          Saguaro Utility or its affiliates regarding
                          employment with, or the right to purchase or
                          participate in the equity of, the surviving
                          corporation.

      Change in Control   TEP has Change in Control Agreements
             Agreements   ("Agreements") with all of its officers. The
                          Agreements are in effect until the later of: (i) five
                          years after the date either TEP or the officer gives
                          written notice of termination of the Agreement, or
Change in                 (ii) if a change in control occurs during the term of
Control Agreements        the Agreement, five years after the change in control.
were adopted              On March 29, 2004, upon the approval of the
to attract                acquisition agreement by our shareholders, a change in
and retain                control occurred for purposes of the Agreements. This
quality management.       will be true irrespective of whether or not the
                          acquisition is completed.

                          The Agreements provide that each officer shall be
                          employed by TEP, or one of its subsidiaries or
                          affiliates, in a position comparable to his or
                          her current position, with compensation and
                          benefits, which are at least equal to their then
                          current compensation and benefits, for a 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).

                          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 employment
                          because of a reduction in position, responsibility,
                          compensation 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 annual salary and
                          bonus compensation; (ii) the present value of the
                          additional amount the officer would have received
                          under the TEP Retirement Plan if the officer had
                          continued to be employed for the five-year period
                          after a change in control occurs; plus (iii) the
                          present value of any employee awards under the
                          1994 Omnibus Stock and Incentive Plan or any

                                       18



                          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 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 by us.
                          Assuming Mr. Pignatelli's and the other Named
                          Executives' employment was terminated, the total
                          payments made by UniSource Energy pursuant to the
                          Agreements would not be expected to exceed $17
                          million.

           Treatment of   Our Board has over time granted options to our
          Stock Options   executive officers and managers that allow those
                          individuals to purchase our common stock at fair
                          market value on the date of issuance. Members of
                          our Board have also over time received grants of
                          options to purchase our common stock at specified
                          prices. On March 29, 2004, upon the approval of the
                          acquisition agreement by our shareholders, a change
                          of control occurred for purposes of the outstanding
                          stock options under the UniSource Energy Corporation
                          1994 Omnibus Stock and Incentive Plan, with the
                          effect of making all outstanding stock options of
                          officers and managers immediately exercisable. Upon
                          consummation of the acquisition, all outstanding
                          stock options under the UniSource Energy Corporation
                          1994 Outside Director Stock Option Plan will become
                          immediately exercisable by members of our Board. In
                          connection with the acquisition agreement, Saguaro
                          Utility, through its affiliate, has agreed to pay at
                          the effective time of the acquisition, with respect
                          to all outstanding options, an amount in cash equal
                          to the product of:

                          o the total number of shares of our common stock
                            underlying a holder's options, and
                          o the excess of $25.25 over the exercise price per
                            share of the shares of our common stock underlying
                            such options.

                          Due to this provision, as of the Record Date, our
                          Board members and the Named Executives listed in the
                          chart that immediately follows this paragraph will
                          be entitled to receive, at the effective time of the
                          acquisition, the following cash payments,
                          respectively, with respect to the cancellation of
                          their options (assuming that the options outstanding
                          as of the Record Date are not exercised or canceled
                          prior to the effective time):


                                               Name and Title                       Amount (1)
                                               --------------                       ----------
                                                                              
                                James S. Pignatelli
                                Chairman, President and Chief Executive             $6,790,211
                                Officer

                                Lawrence J. Aldrich
                                Director                                               $66,268

                                Larry W. Bickle
                                Director                                              $109,306

                                Elizabeth T. Bilby
                                Director                                              $139,568


                                       19




                                               Name and Title                       Amount (1)
                                               --------------                       ----------
                                                                              
                                Harold W. Burlingame
                                Director                                              $109,306

                                John L. Carter
                                Director                                              $127,868

                                Robert A. Elliott
                                Director                                                $8,862

                                Kenneth Handy
                                Director                                               $48,636

                                Warren Y. Jobe
                                Director                                               $48,636

                                Steven J. Glaser
                                Senior Vice President and Chief Operating           $1,697,485
                                Officer, Transmission & Distribution -TEP

                                Dennis R. Nelson
                                Senior Vice President and Chief Operating           $1,716,325
                                Officer - UES

                                Michael J. DeConcini
                                Senior Vice President, Investments and              $1,220,738
                                Planning / Senior Vice President and Chief
                                Operating Officer, Energy Resources - TEP

                                Kevin P. Larson
                                Vice President, Chief Financial Officer and           $979,258
                                Treasurer

                                Vincent Nitido, Jr.
                                Vice President, General Counsel and Chief           $1,269,188
                                Administrative Officer

                                All directors and executive officers as a
                                group                                              $17,960,593
-------------------

(1)  Includes cash payments attributable to shares subject to options
     exercisable within 60 days as disclosed in the Security Ownership of
     Management table on pages 4-5 under the column heading "Amount and Nature
     of Beneficial Ownership."


              Treatment   As discussed under "Equity Compensation Plan
               of Other   Information" on page 15 of this Proxy Statement, we
           Compensation   maintain a deferred compensation plan that permits
                          officers and directors to defer a percentage
                          of the compensation or fees that would otherwise be
                          payable to the individual for their services to us.
                          A participant in this plan may elect that his or
                          her deferrals be credited in, among other things,
                          the form of a deemed investment in shares of our
                          common stock. A trust has been established that
                          maintains a position in our common stock
                          corresponding to the plan participants' deemed
                          investment in our common stock. Distributions are
                          made in stock or cash, at our discretion. In
                          addition, our Board has, over time, granted our
                          executive officers and managers restricted stock
                          units under our stock and incentive plans. Upon
                          vesting, officers and managers may defer receipt of
                          these restricted stock unit awards, in which case,
                          the deferred awards are

                                       20



                          credited to a bookkeeping account in the form of
                          dividend equivalent-bearing stock units. The table
                          that follows sets forth the allocable amount of shares
                          of common stock credited to our directors and the
                          Named Executives as of the Record Date with respect to
                          the deferred compensation plan and dividend
                          equivalent-bearing stock units.

                          Our Board has also, over time, granted our
                          executive officers and managers other equity-based
                          compensation awards, including performance shares
                          and performance units under our stock and incentive
                          plans. Performance shares are distributed as shares
                          of our common stock, and performance units are
                          distributed as cash, in each case, when, and to the
                          extent, that performance goals during a specified
                          performance period have been met. On March 29,
                          2004, upon the approval of the acquisition
                          agreement by our shareholders, a change of control
                          occurred for purposes of these awards and the
                          awards fully vested, at target. See "2003 Long-Term
                          Incentive Plan Awards" on page 14 of this Proxy
                          Statement. As provided in the following table, upon
                          the change of control, all shares of common stock
                          were distributed with respect to performance shares
                          and all cash payments were made with respect to
                          performance units.


                                                                                 Number of Performance Shares
                                                      Allocable Amount of       Issued/Amount of Cash Paid with
                    Name and Title                      Deferred Shares          Respect to Performance Units
                    --------------                    -------------------       --------------------------------
                                                                                 
    James S. Pignatelli                                      137,385                   12,675 / $327,958
    Chairman, President and
    Chief Executive Officer

    Lawrence J. Aldrich                                        1,548                          --
    Director

    Larry W. Bickle                                              405                          --
    Director

    Elizabeth T. Bilby                                         4,378                          --
    Director

    Harold W. Burlingame                                       1,548                          --
    Director

    John L. Carter                                            10,338                          --
    Director

    Robert A. Elliott                                            405                          --
    Director

    Kenneth Handy                                              3,438                          --
    Director

    Warren Y. Jobe                                             1,548                          --
    Director

    Steven J. Glaser                                          29,574                   5,809 / $150,708
    Senior Vice President and
    Chief Operating Officer, Transmission &
    Distribution - TEP


                                       21




                                                                                 Number of Performance Shares
                                                      Allocable Amount of       Issued/Amount of Cash Paid with
                    Name and Title                      Deferred Shares          Respect to Performance Units
                    --------------                    -------------------       --------------------------------
                                                                                 
    Dennis R. Nelson                                          26,353                   5,704 / $147,537
    Senior Vice President and Chief Operating
    Officer - UES

    Michael J. DeConcini                                      24,307                   4,858 / $125,290
    Senior Vice President, Investments and
    Planning / Senior Vice President and Chief
    Operating Officer,
    Energy Resources - TEP

    Kevin P. Larson                                              774                   3,770 / $141,370
    Vice President, Chief Financial Officer and
    Treasurer

    Vincent Nitido, Jr.                                       16,470                   3,770 / $141,370
    Vice President, General Counsel and Chief
    Administrative Officer

    All directors and executive officers as a                302,686                  53,566 / $1,629,620
    group


                         DIRECTOR INDEPENDENCE CRITERIA

     Board independence   The Board has established the following criteria for
       is determined by   determining independence, including for the purpose of
       consideration of   serving upon the Audit Committee, the Compensation
   established criteria.  Committee and the Corporate Governance and Nominating
                          Committee.

                          Directors that meet each of the following criteria are
                          deemed independent:

                          1.    A director who is a former employee of
                                UniSource Energy cannot be "independent"
                                until five years after employment has
                                ended, provided, however, that a director
                                who serves as an interim Chairman or CEO is
                                excluded from the definition of a "former
                                employee" and thus deemed independent
                                immediately after his or her service as
                                interim Chairman or CEO ends.

                          2.    A director who is, or in the past five
                                years has been, affiliated with or employed
                                by a (present or former) auditor of
                                UniSource Energy (or of an affiliate)
                                cannot be "independent" until five years
                                after the end of either the affiliation or
                                the auditing relationship.

                          3.    A director cannot be "independent" if he or
                                she is, or in the past five years has been,
                                part of an interlocking directorate in
                                which an executive officer of UniSource
                                Energy serves on the compensation committee
                                of another company that concurrently
                                employs the director.

                          4.    Directors with immediate family members in
                                the foregoing categories (items 1-3) are
                                likewise subject to the five-year
                                "cooling-off" provisions for purposes of
                                determining "independence," provided,
                                however, that employment of a family member
                                in a non-officer position does not preclude
                                a director from being deemed "independent."

                                       22



                          5.    A director who possesses an interest in any
                                transaction for which disclosure would be
                                required pursuant to Item 404(a) of SEC
                                Regulation S-K (generally, this item
                                requires proxy statement disclosure of
                                transactions exceeding $60,000 between a
                                director and UniSource Energy or any of our
                                subsidiaries) cannot be independent.

                          6.    Directors that do not meet item 5 of the
                                aforementioned criteria may nonetheless be
                                deemed independent by a majority of
                                independent directors, provided the basis
                                for such determination shall be disclosed
                                in our Proxy Statement.

                          Based upon the foregoing criteria, the Board has
                          deemed each director to be independent, with the
                          exception of Lawrence J. Aldrich and Larry W. Bickle.
                          See "Transactions with Management and Others" below.

                              TRANSACTIONS WITH MANAGEMENT AND OTHERS

             Haddington   Millennium  was  authorized by its Board of Directors
                Energy    in 2000 to invest $15 million,  in aggregate, over a
         Partners II LP   three- to five-year period in Haddington  Energy
                          Partners II LP. Mr. Bickle, a member of ourBoard, is
                          the managing director of Haddington Ventures LLC, the
                          general partner of Haddington Energy Partners II LP.
                          As of December 31, 2003, Millennium had funded
                          approximately $8.5 million under this commitment,
                          $2.4 million of which was funded in 2003.

                 Valley   Millennium made a commitment of $5 million capital
               Ventures   plus a share of expenses to Tucson Ventures, LLC,
                III, LP   a venture capital fund, in 2000. Tucson Ventures, LLC
                          merged with Valley Ventures III, LP, also a venture
                          capital fund, in 2002. In connection with the merger
                          of the funds, Millennium's commitment was revised to a
                          total of $6 million, including expenses. Mr. Aldrich,
                          a member of our Board, is a general partner of the
                          company that manages Valley Ventures III, LP. As of
                          December 31, 2003, Millennium had funded
                          approximately $1.2 million under this commitment.

          COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

      Millennium Energy   Mr. Stephen  Alexander,  an immediate family member of
            Investments   Mrs.  Bilby,  a member of our  Compensation Committee,
                          is employed by Millennium.  As Director of Energy
                          Investments,  Mr. Alexander assists in overseeing
                          Millennium's  investment  portfolio.  For his services
                          in 2003, Mr. Alexander  received compensation of
                          approximately $150,000 from Millennium.

            COMPENSATION COMMITTEE REPORT ON EXECUTIVE COMPENSATION

          The Committee   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. The Compensation Committee makes
                          recommendations to the Board with respect to 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.

                                       23



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

              Executive   The Compensation Committee reviews our
           Compensation   executives' compensation each year. Compensation
              Generally   depends on many factors, including individual
                          performance, responsibilities, future challenges and
                          objectives and the executive's potential contribution
                          to our future success. The Compensation Committee also
                          looks at our financial performance and the
                          compensation levels at comparable companies.

                          UniSource Energy's 2003 compensation program consisted
                          of three components:

                               o    base salary;
                               o    short-term incentive compensation; and
                               o    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 2003,
                          the  consultant selected a peer group of energy
                          companies with a revenue  range of $264  million to $6
                          billion. UniSource  Energy ranks at the 37th
                          percentile of the peer group.  Twenty-one of the 25
                          peer group companies  have both regulated  utility and
                          non-regulated energy businesses. The Compensation
                          Committee  believes the companies in the comparator
                          group are a more appropriate comparison for UniSource
                          Energy than the Edison Electric 100 companies used in
                          the Performance Graph on page 28 of this Proxy
                          Statement, 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 group represent
                          primary competitors to UniSource Energy for top-level
                          management personnel. The external data from companies
                          in the comparator group was used to develop market
                          compensation for each executive position.  "Market
                          compensation"  refers to the median salary for
                          executives in the comparator  group. Base salaries for
                          UniSource  Energy's executive officers, including Mr.
                          Pignatelli and the other Named Executives, were set at
                          market compensation levels in January  2003, in
                          recognition of the increasingly competitive
                          environment  in the electric industry, 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.


             Short-Term   The Board adopted a Short-Term Incentive Plan to
              Incentive   provide compensation for meeting or exceeding
           Compensation   specified objectives designed to contribute to the
                          attainment of UniSource Energy's performance
                          targets and 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 2003, the target award levels for
                          our executive officers ranged from 30% to 70% of
                          base salary. Awards for Mr. Pignatelli and the
                          remaining executive officers are determined by
                          the Board

                                       24

                          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 the Named Executives ranging
                          from 56% to 92% of base salary. Incentive compensation
                          awarded to Mr. Pignatelli and the other Named
                          Executives is set forth in the preceding Summary
                          Compensation Table.

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

                          At the recommendation of the Compensation
                          Committee, the Board unanimously adopted and, at
                          the 1994 annual meeting of the shareholders, the
                          shareholders approved the Tucson Electric Power
                          Company (now UniSource Energy) 1994 Omnibus Stock
                          and Incentive Plan. On May 9, 2003, the
                          Compensation Committee issued stock options
                          (intended to be incentive stock options),
                          performance shares (denominated in shares) and
                          performance units (denominated in cash) to all
                          executive officers of UniSource Energy, including
                          Mr. Pignatelli and the other Named Executives. In
                          calculating the level of awards to the 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
                          and the other Named Executives stock options,
                          performance shares and performance units with a
                          total value equal to 100% of base salary for
                          target performance. The number of UniSource
                          Energy shares covered by the stock option grant
                          to Mr. Pignatelli was 21,226, the number of
                          performance shares was 18,370, and the number of
                          performance units was 189,000. See "2003
                          Long-Term Incentives Plan Awards" on page 14 of
                          this Proxy Statement for a discussion of the
                          performance criteria upon which the payout of
                          performance shares and performance units is
                          dependent. In determining the 2003 long-term
                          incentive awards, the Compensation Committee did
                          not consider the number of options previously
                          granted or outstanding.

           Tax Code       The Compensation Committee does not presently have a
           Concerns       policy regarding qualifying compensation paid to
                          executive officers for deductibility under Section
                          162(m) of the Code.

                                   Respectfully submitted,

                                   THE COMPENSATION COMMITTEE

                                   H. Wilson Sundt, Chair (1/03-5/03)
                                   Harold W. Burlingame, Chair (6/03-12/03)
                                   Elizabeth T.Bilby
                                   John L. Carter
                                   Robert A. Elliott
                                   Kenneth Handy
                                   Warren Y. Jobe

                                       25



                             AUDIT COMMITTEE REPORT

          The Committee   The Audit Committee is made up of five financially
                          literate directors who are independent based
                          upon independence criteria established by our Board,
                          which  criteria is in compliance with applicable
                          New York Stock Exchange listing standards. Our Board
                          has determined that each member of the Audit Committee
                          has accounting  and/or related financial management
                          expertise and as such has not designated any single
                          Audit Committee member as the Audit Committee
                          "financial expert." However, our Board anticipates
                          that it will formally designate one member of the
                          Audit Committee to be the Audit Committee "financial
                          expert" at its May 2004 Board meeting. The Board
                          previously adopted a written charter for the Audit
                          Committee. The Committee has complied with its
                          charter, including the requirement to meet
                          periodically with our independent auditors, internal
                          audit department and management to discuss the
                          auditors' findings and other financial and accounting
                          matters.

                          In connection with our December 31, 2003 financial
                          statements, the Audit Committee has (i) reviewed and
                          discussed the audited financial statements with
                          management; (ii) discussed with
                          PricewaterhouseCoopers, LLP, our independent auditor,
                          the matters required to be discussed by SAS 61
                          (Codification of Statements on Auditing Standards, AU
                          Sec. 380); (iii) received from
                          PricewaterhouseCoopers, LLP the written disclosures
                          and the letter required by Independence Standards
                          Board Standard No. 1 (Independence Discussions with
                          Audit Committees); and (iv) discussed with
                          PricewaterhouseCoopers, LLP its independence.

                          Based on all of its activities during the year, the
                          Audit Committee recommended to the Board that the
                          audited financial statements for 2003 be included in
                          the Annual Report on Form 10-K for filing with the
                          SEC.

           Pre-Approved   Rules adopted by the SEC in order to implement
               Policies   requirements of the Sarbanes-Oxley Act of 2002
         and Procedures   require public company audit committees to pre-approve
                          audit and non-audit  services. Our Audit Committee has
                          adopted a policy pursuant to which audit,
                          audit-related, tax and other services are pre-approved
                          by category of service. Recognizing that situations
                          may arise where it is in our best interest
                          for the auditor to perform services in addition to
                          the annual audit of our financial statements, the
                          policy sets forth guidelines and procedures with
                          respect to approval of the four categories of service
                          designed to achieve the continued independence of the
                          auditor when it is retained to perform such services
                          for us. The policy requires the Audit Committee to be
                          informed of each service and does not include any
                          delegation of the Audit Committee's responsibilities
                          to management. The Audit Committee may delegate to
                          the Chairman of the Audit Committee the authority to
                          grant pre-approvals of audit and non-audit services
                          requiring Audit Committee approval where the Audit
                          Committee Chairman believes it is desirable to
                          pre-approve such services prior to the next regularly
                          scheduled Audit Committee meeting. The decisions of
                          the Audit Committee Chairman to pre-approve any such
                          services from one regularly scheduled Audit Committee
                          meeting to the next shall be reported to the Audit
                          Committee.

                                       26



                   Fees   The following table details fees paid to
                          PricewaterhouseCoopers, LLP for professional services
                          during 2002 and 2003. The Audit Committee has
                          considered whether the provision of services to us by
                          PricewaterhouseCoopers, LLP, beyond those rendered in
                          connection with their audit and review of our
                          financial statements, is compatible with maintaining
                          their independence as auditors.


                                                                      2002                 2003
                                                                      ----                 ----
                                                                                   
                                Audit Fees                           $821,739            $1,030,489
                                Audit-Related Fees                   $194,989              $713,470
                                Tax Fees                              $62,453               $55,466
                                All Other Fees                        $39,812                $2,598

                          Fees for audit services include fees for the audit of
                          our consolidated financial statements included in our
                          Annual Report on Form 10-K and review of financial
                          statements included in our quarterly reports on Form
                          10-Q, comfort letters, consents and other services
                          related to SEC matters and financing transactions,
                          statutory and regulatory audits, and accounting
                          consultations to the extent necessary for
                          PricewaterhouseCoopers, LLP to fulfill their
                          responsibilities under generally accepted auditing
                          standards. Audit-related fees principally include
                          accounting and electric system assets from Citizens
                          Communications Company on August 11, 2003 and due
                          diligence related to the Springerville expansion and
                          proposed acquisition of UniSource Energy by an
                          affiliate of Saguaro Utility. Tax fees include tax
                          compliance, tax advice, and tax planning. All other
                          fees principally include accounting training.
                          Amounts previously reported for 2002 have been
                          reclassified to conform to the categories required
                          for 2003.

                                   Respectfully submitted,

                                   THE AUDIT COMMITTEE

                                   Warren Y. Jobe, Chair
                                   Elizabeth T. Bilby
                                   John L. Carter
                                   Robert A. Elliott
                                   Kenneth Handy


                                       27



                               PERFORMANCE GRAPH
             Comparison of Cumulative Five-Year Total Return Among
                 UniSource Energy, Standard & Poor's 500 Index
                and EEI Index of 64 Investor-Owned Utilities (1)

The graph showing on the hard copy represents the comparison of four 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 1998 to 2003, and the Y-axis shows dollar values from zero
to 250.  The data points are connected by lines with the following markers:
UniSource Energy Corporation - triangles;  S&P 500 - diamonds;  EEI Index -
100 Electrics - squares.  The data points are as follows:


                      1998      1999      2000      2001      2002     2003
                      ----      ----      ----      ----      ----     ----
                                                     
UniSource Energy
 Corporation          $100      $83       $142      $141      $137     $202
S&P 500 Index         $100      $121      $120      $110      $76      $97
EEI Index - 100
 Electrics            $100      $81       $110      $97       $94      $116


     (1) Assumes $100 invested on December 31, 1998 in UniSource Energy
         Corporation 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.





     Data and Calculations                   1999          2000          2001          2002          2003
     ---------------------                   ----          ----          ----          ----          ----
                                                                                     
     S&P 500 Total Return Change            21.04%        -9.10%        -11.89%       -22.10%       28.69%
     EEI Index - 64 Electrics Change       -18.60%        47.97%         -8.79%       -14.73%       23.48%
     UniSource Energy Change               -17.13%        71.80%         -1.30%        -2.20%       46.72%


                                       28



                      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 our  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 2005 annual meeting of shareholders, any such
                          notice must be submitted to the Corporate Secretary of
                          UniSource Energy on or before February 24, 2005
                          (assuming that the acquisition of UniSource Energy
                          is not completed prior to such date).

We must receive your      This requirement is separate and apart from the SEC's
shareholder proposals     requirements that a shareholder must meet in order to
by December 10, 2004.     have a shareholder proposal included in our Proxy
                          Statement. Shareholder proposals intended to be
                          presented at our 2005 annual meeting of the
                          shareholders (assuming that the acquisition of
                          UniSource Energy is not completed prior to our 2005
                          annual meeting of shareholders) must be received by us
                          no later than December 10, 2004 (assuming that the
                          acquisition of UniSource Energy is not completed prior
                          to such date), 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 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.

                          Copies of our 2003 Annual Report on Form 10-K may be
                          obtained by shareholders, without charge, upon written
                          request to Library and Resource Center, UniSource
                          Energy Corporation, 3950 East Irvington Road, Mail
                          Stop RC114, Tucson, Arizona 85714. You may also obtain
                          our SEC filings through the Internet at www.sec.gov or
                          www.UniSourceEnergy.com.


                                   By order of the Board of Directors,
                                   /s/ Catherine A. Nichols
                                   ------------------------
                                   Catherine A. Nichols
                                   Corporate Secretary



                      PLEASE VOTE - YOUR VOTE IS IMPORTANT

                                       29






                                                                      APPENDIX A
                                                                December 4, 2003

                          UNISOURCE ENERGY CORPORATION
                COMPENSATION COMMITTEE OF THE BOARD OF DIRECTORS
                                     CHARTER

1.       COMPOSITION

         The Compensation Committee of the Board of Directors consists of not
         fewer than three Directors appointed annually by the Board. All members
         of the Committee shall be determined to be independent in accordance
         with the NYSE Listed Company Manual. The Board shall designate one of
         the Committee members as Chairman of the Committee.

2.       MEMBER QUALIFICATIONS

         A Director shall be qualified to serve on the Committee if he or she
         qualifies as independent under the NYSE Listed Company Manual.

3.       MEMBER APPOINTMENT AND REMOVAL

         All members of the Committee shall be appointed and/or removed by the
         Corporate Governance & Nominating Committee.

4.       MEETINGS

         The Committee will hold at least three regular meetings each year, and
         such additional meetings, as it may deem necessary. In addition to the
         Committee members and the Secretary, the Chairman of the Board, Chief
         Executive Officer and President and other members of management may
         attend as is appropriate.

5.       RULES OF PROCEDURE

         The Committee will determine its own rules of procedure with respect to
         how its meetings are to be called, as well as the place, time and
         frequency. In the absence of such rules, the Committee will meet at the
         call of its Chairman as is required to accomplish the purposes of the
         Committee.

6.       COMPENSATION

         Each member will be paid for each meeting attended the same fee paid
         for attendance at other Committee meetings of the Board, and will be
         reimbursed for travel expenses incurred by attendance at meetings.

7.       COMMITTEE SECRETARY

         The Secretary of the Committee will be the Asst. Corporate Secretary of
         the Company (or such other officer as the Committee may designate) and
         not be a member of the Committee. The Secretary will attend all
         meetings and maintain minutes, advise members of all meetings called,
         arrange with the Chairman or other convening authority for preparation
         and distribution of the agenda for each meeting, and carry out other
         functions as may be assigned from time to time by the Committee. At
         such meetings where attendance by a Company officer is not appropriate,
         the Chairman shall act as secretary of the meeting or appoint another
         member of the Committee to act as secretary of such meetings.


                                      A-1



8.       QUORUM

         A majority of the total membership of the Committee will constitute a
         quorum.

9.       RESPONSIBILITIES

         The function of the Committee is to assure an internally consistent and
         externally competitive executive compensation program in order to
         attract, motivate and retain qualified executives. It is also the
         Committee's function to provide incentives for the attainment of the
         Company's strategic goals and objectives and to produce a report on
         executive compensation for inclusion in the Proxy Statement of the
         Company.

         For purposes of the Committee's responsibilities, executives are
         defined as all officers of the Company.

10.             SPECIFIC DUTIES OF THE COMMITTEE

         1.     Approve the compensation philosophy and guidelines for the
                executive group, including base salary structure, incentive
                compensation, and long range strategic incentive programs to
                attract, retain and motivate executives.

         2.     Review and approve corporate goals and objectives relating to
                CEO compensation.

         3.     Evaluate CEO performance in light of corporate goals and
                objectives and set CEO compensation level based upon evaluation
                of the performance of such goals and objectives.

         4.     Review and approve, based on reviews of compensation practices
                in related and other industries, the appropriate compensation
                levels including fringes and other benefits for the CEO.

         5.     Receive the CEO's recommendations, review and approve
                compensation for all of the Company's executives, including any
                equity compensation awarded, fringes and other benefits, and the
                ability to delegate action to Management in conjunction with the
                aforementioned compensation.

         6.     Review and approve any management incentive plans, including the
                participants, goals, payout ratios, etc., which involve
                executives of the Company.

         7.     Administer the Company's long range incentive plan, including
                selection of participants, setting of objectives, and
                determination of awards, as more fully defined in such plan.
                Recommend changes to the long range incentive program as deemed
                necessary considering the Company's performance, relative
                shareholder return, value of similar awards at similar companies
                and awards given to the Company's CEO in past years.

         8.     Review and approve any special employment contract or other
                special agreement, such as a supplementary pension agreement,
                for any of the Company's executives.

         9.     Produce an annual report, in accordance with applicable rules
                and regulations, on executive compensation for inclusion in the
                proxy statement.

         10.    Periodically, receive a briefing by management regarding the
                administration and appropriateness of the total rewards package
                including base, short-term and long-term compensation and health
                and welfare plans, for non-executive employees.

         11.    Review and approve Director compensation, including short- and
                long-term incentives.

                                      A-2



         12.    Review and approve policy for reimbursement of Director
                expenses.

         13.    As necessary, carry out other duties assigned by the Board to
                the Committee that are related to compensation and management
                development.

         14.    Retain and terminate any consulting firms to be used to assist
                in the evaluation of director, CEO or executive compensation.
                This authority shall be exclusive to this Committee.

         15.    Annually review its performance as a Committee.

11.      RESPONSIBILITIES OF THE CHAIRMAN

         The Chairman of the Committee will present the Committee's
         recommendations to the Board for its approval and periodically provide
         the Board, for its information, with a summary of the Committee's
         determinations and approvals.

12.      RESPONSIBILITIES OF THE CHIEF EXECUTIVE OFFICER

         The Chief Executive Officer of the Company will advise and make
         recommendations to the Committee and, in the normal course, attend all
         meetings of the Committee, with the exception of that portion of any
         meeting where compensation of the Chief Executive Officer is
         considered. It is also the responsibility of the Chief Executive
         Officer to coordinate the implementation and execution of Committee
         determinations.

13.      OTHER AUTHORITY

         The Committee may call upon any person including employees of the
         Company or its subsidiaries, knowledgeable in matters discussed by the
         Committee, for information and counsel.

14.      ANNUAL SCHEDULE

         The routine business of the Committee shall be considered in accordance
         with the Annual Schedule attached as Exhibit A.


                                      A-3



                                                                       EXHIBIT A


                                     11/03

                     COMPENSATION COMMITTEE ANNUAL SCHEDULE



         February         Review prior year performance under short term
                          incentive program and determine awards

                          Review current year Performance Enhancement Plan

                          Approve report of Committee for inclusion in Proxy

         August           Meet with consultant re upcoming review of Director
                          and Officer compensation

         October          Review of compensation for Directors and Officers

         December         Establish director retainer and meetings fees to be
                          effective January 1st of following year.

                          Establish Officer compensation for following year.

                          Review corporate goals and objectives for following
                          year






                        (The dates on the above schedule
                            are subject to change.)

                                      A-4



                                                                      APPENDIX B
                                                                February 5, 2004


                          UNISOURCE ENERGY CORPORATION

    CORPORATE GOVERNANCE AND NOMINATING COMMITTEE OF THE BOARD OF DIRECTORS

                                    CHARTER

1.       COMPOSITION

         The Corporate Governance and Nominating Committee of the Board of
         Directors (the "Committee") consists of not fewer than three Directors
         appointed annually by the Board. All members of the Committee shall be
         determined to be independent in accordance with the NYSE Listed Company
         Manual. The Board shall designate one of the Committee members as
         Chairman of the Committee.

2.       QUALIFICATIONS

         A Director shall be qualified to serve on the Committee if he or she
         qualifies as independent under the Company's Director Independence
         Criteria.

4.       APPOINTMENT AND REMOVAL OF COMMITTEE MEMBERS

         All members of the Committee shall be appointed and/or removed by the
         Board of Directors.

5.       MEETINGS

         The Committee will meet regularly to prepare for any upcoming vacancies
         on the Board of Directors and to address corporate governance. In
         addition to the Committee members and the Secretary, the Chairman of
         the Board, Chief Executive Officer and President and other members of
         the Board and management may attend as appropriate.

6.       RULES OF PROCEDURE

         The Committee will determine its own rules of procedure with respect to
         how its meetings are to be called, as well as the place, time and
         frequency. In the absence of such rules, the Committee will meet at the
         call of its Chairman as is required to accomplish the purposes of the
         Committee.

7.       COMPENSATION

         Each member will be paid such fees as may be established from time to
         time by the Board for service on the Committee, and will be reimbursed
         for travel expenses incurred by attendance at meetings.

8.       COMMITTEE SECRETARY

         The Secretary of the Committee will be the Asst. Corporate Secretary of
         the Company (or such other representative of management as the
         Committee may designate) and will not be a member of the Committee. The
         Secretary will attend all meetings and maintain minutes, advise members
         of all meetings called, arrange with the Chairman or other convening
         authority for preparation and distribution of the agenda for each
         meeting, and carry out other functions as may be assigned from time to
         time by the Committee. At such


                                      B-1



         meetings where attendance by a Company representative is not
         appropriate, the Chairman shall act as secretary of the meeting or
         appoint another member of the Committee to act as secretary of such
         meetings.

9.       QUORUM

         A majority of the total membership of the Committee will constitute a
         quorum.

10.      RESPONSIBILITIES AND SPECIFIC DUTIES OF THE COMMITTEE

         The functions of the Committee shall be:

         1.     Regularly review and assess the current Board membership as to
                size, skills and upcoming vacancies.

         2.     Make recommendations to the Board with respect to desired
                background, skill sets, experience and characteristics of Board
                members, as well as continuing education, conferences and
                seminars that Directors might attend to enhance their skill
                sets.

         3.     Regularly review and/or update the Candidate Evaluation Form.

         4.     Fill vacancies on Board of Directors by gathering and reviewing
                information on potential Board members; interviewing potential
                Board candidates; and, recommending potential Board members to
                the Board of Directors.

         5.     Review and approve all UniSource Board committee members and
                board members of major subsidiaries.

         6.     Annually review and recommend for approval corporate governance
                principles.

         7.     Facilitate periodic evaluation of the Board's collective
                performance.

         8.     Annually evaluate the performance of this Committee.

         9.     To retain and terminate any search firms to be used to identify
                director candidates including any terms of retention. This
                authority shall be exclusive to this Committee.

         10.    Annually review and approve modifications to the Company Board
                Manual.

11.      RESPONSIBILITIES OF THE CHAIRMAN

         The Chairman of the Committee will present the Committee's
         recommendations to the Board for its approval and periodically provide
         the Board, for its information, with a summary of the Committee's
         determinations and approvals.

12.      RESPONSIBILITIES OF THE CHIEF EXECUTIVE OFFICER

         The Chief Executive Officer of the Company will advise and make
         recommendations to the Committee and, in the normal course, attend all
         meetings of the Committee.

13.      OTHER AUTHORITY

         The Committee may call upon any person including employees of the
         Company or its subsidiaries, knowledgeable in matters discussed by the
         Committee, for information and counsel.


                                      B-2


                                                                      APPENDIX B
                                                              FORM OF PROXY CARD


                                UNISOURCE ENERGY

                              YOUR VOTE IS IMPORTANT
                         VOTE BY TELEPHONE OR INTERNET
                         24 HOURS A DAY - 7 DAYS A WEEK


INTERNET
--------
https://www.proxyvotenow.com/uns


- Go to the website address listed above.

- Have your proxy card ready.

- Follow the simple instructions that appear on
  your computer screen.


OR


TELEPHONE
---------
1-866-358-4695

- Use any touch-tone telephone.

- Have your proxy card ready.

- 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.



You can vote your shares by telephone, the Internet, mail or in person at
the Annual Shareholders' Meeting.  Your telephone or Internet 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 to mail your proxy card.

1-866-358-4695
CALL TOLL-FREE TO VOTE
-------------------------------
THE INTERNET AND TELEPHONE VOTING FACILITIES WILL BE AVAILABLE UNTIL 5:00 P.M.
E.S.T. ON THURSDAY, MAY 6, 2004.


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



                         (FORM OF PROXY CARD - FRONT)


Please Sign, Date and Return                             [X]
the Proxy Promptly Using the                  Votes MUST be indicated (x)
Enclosed Envelope.                            in Black or Blue Ink.


The Board of Directors Recommends a vote "FOR" the following proposal:

1. Election of Directors

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

Nominees: 01-James S. Pignatelli, 02-Lawrence J. Aldrich, 03-Larry W. Bickle,
          04-Elizabeth T.Bilby, 05-Harold W. Burlingame, 06-John L. Carter,
          07-Robert A. Elliott, 08-Kenneth Handy, 09-Warren Y. Jobe

(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
            ------------------------------------------------------------------


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


                                                  To change your address,
                                                  please mark this box.     [ ]


                                                  To include any comments,
                                                  please mark this box.     [ ]


                                            -----------------------------------
                                                  SCAN LINE
                                            -----------------------------------


                                       PLEASE SIGN EXACTLY AS YOUR 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 2003
                                       Annual Report.

                                       Date      Shareholder sign here

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


                                       Date      Co-Owner sign here
                                       ----------------------------------------


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

                                      C-1



[A street map showing the location         Marriott University Park Hotel
of the Annual Shareholders' Meeting        880 East Second Street
is set forth in this area.]                Tucson, AZ 85719

                                           520.792.4100   Hotel Direct
                                           800.228.9290   Reservations

                                           TRANSPORTATION
                                           From Tucson International Airport

                                           Shuttle Service
                                           Arizona Stagecoach
                                           Call 520-889-1000

                                           Automobile - Interstate 10 to
                                           Speedway exit


DEAR SHAREHOLDERS:
   If you previously elected to view the UniSource Energy Corporation Proxy
Statements and Annual Reports over the Internet instead of receiving copies in
the mail, you can now access the Proxy Statement for the 2004 Annual
Shareholders' Meeting and the 2003 Annual Report on the Internet through the
following address: http://www.UniSourceEnergy.com.  You can vote your shares by
telephone, the Internet, Mail or in Person at the Annual Shareholders' Meeting.
See the Proxy Statement and the enclosed proxy card for further information
about voting procedures.

   If you would like a paper copy of the Proxy Statement and Annual Report,
UniSource Energy will provide a copy to you upon request.  To obtain a copy of
these documents, please call 866-275-4867.
-------------------------------------------------------------------------------



                         (FORM OF PROXY CARD - BACK)


                                UNISOURCE ENERGY

This Proxy is Solicited on Behalf of the Board of Directors of the Company
   for the Annual Shareholders' Meeting to be held Friday, May 7, 2004.


                                   P R O X Y


   The undersigned hereby appoints James S. Pignatelli and Kevin P. Larson,
and each of them, with the power of substitution, to represent and to vote on
behalf of the undersigned all shares of Common Stock which the undersigned is
entitled to vote at the Annual Shareholders' Meeting scheduled to be held at
the Marriott University Park Hotel, 880 East Second Street, Tucson, Arizona,
on Friday, May 7, 2004, and at any adjournments or postponements thereof,
with all powers the undersigned would possess if personally present 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 undersigned shareholder. IF NO DIRECTION IS MADE,
THIS PROXY WILL BE VOTED "FOR" Proposal 1.

                                      C-2