TUCSON ELECTRIC POWER CO
10-K405/A, 1998-03-06
ELECTRIC SERVICES
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                                UNITED STATES
                     SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C.  20549

                                 FORM 10-K/A
                                 (Mark One)
         [X]    ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                     THE SECURITIES EXCHANGE ACT OF 1934
                 For the fiscal year ended December 31, 1997
                                     OR
         [  ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                     THE SECURITIES EXCHANGE ACT OF 1934
          For the transition period from __________ to __________.



Commission     Registrant; State of Incorporation;        IRS Employer
File Number    Address; and Telephone Number              Identification Number
- -----------    -----------------------------              ---------------------
1-13739        UNISOURCE ENERGY CORPORATION               86-0786732
               (An Arizona Corporation)
               220 West Sixth Street
               Tucson, AZ  85701
               (520) 571-4000

1-5924         TUCSON ELECTRIC POWER COMPANY              86-0062700
               (An Arizona Corporation)
               220 West Sixth Street
               Tucson, AZ  85701
               (520) 571-4000


    Securities registered pursuant to Section 12(b) of the Act:

                                                    Name of Each Exchange
Registrant           Title of Each Class            on Which Registered
- ----------           -------------------            -------------------
UniSource Energy    Common Stock, no par value      New York Stock Exchange
Corporation                                         Pacific Stock Exchange

Tucson Electric     First Mortgage Bonds
Power Company        8-1/8%Series due 2001          New York Stock Exchange
                     7.55% Series due 2002          New York Stock Exchange
                     7.65% Series due 2003          New York Stock Exchange

    Securities registered pursuant to Section 12(g) of the Act:  None

     Indicate by check mark whether each registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days.
Yes   X    No 
    -----     -----

     Indicate by check mark if disclosure of delinquent filers pursuant to
Item 405 of Regulation S-K is not contained herein, and will not be
contained, to the best of each registrant's knowledge, in definitive proxy or
information statements incorporated by reference in Part III of this Form 10-
K or any amendment to this Form 10-K. [ X ]


     The aggregate market value of UniSource Energy Corporation voting Common
Stock held by non-affiliates of the registrant was $542,330,842.50 based on
the last reported sale price thereof on the consolidated tape on February 24,
1998.

	  At February 24, 1998, 32,138,124 shares of UniSource Energy Corporation
Common Stock, no par value (the only class of Common Stock), were
outstanding.

     UniSource Energy Corporation is the sole holder of the 32,162,167 shares
of the outstanding Common Stock of Tucson Electric Power Company.

     Documents incorporated by reference: Specified portions of UniSource
Energy Corporation's Proxy Statement relating to the 1998 Annual Meeting of
Shareholders are incorporated by reference into PART III.



ITEM 9. -- CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE
- -------------------------------------------------------------------------------

      On November 7, 1997, based upon the recommendation of its audit
committee, the Board of Directors of TEP voted to appoint Price Waterhouse
LLP as TEP's independent accountants for the year ending December 31, 1998.
TEP chose not to renew the engagement of Deloitte & Touche LLP, TEP's present
independent accountants.  Deloitte & Touche LLP continued to serve for the
1997 fiscal year, including rendering an opinion on the financial statements
for the year ended December 31, 1997.

      The reports of Deloitte & Touche LLP on the Company's and TEP's
financial statements for each of the two most recent years ended December 31,
1997 did not contain any adverse opinion or disclaimer of opinion, nor were
the reports qualified in any manner.

      During 1996, 1997 and the period from December 31, 1997 to March 2, 1998,
the date of the Form 10-K, there were no disagreements with Deloitte & Touche
LLP on any matter of accounting principle or practice, financial statement
disclosure or auditing scope or procedure.  During this period, there were no
"reportable events" as that term is defined in Item 304 (a) (1) (v) of
Regulation S-K.

      The Company and TEP requested Deloitte & Touche LLP to furnish a
letter addressed to the Securities and Exchange Commission stating whether
it agrees with the above statements for the two most recent years ended
December 31, 1997 to March 2, 1998, the date of the Form 10-K.  A copy of such
letter, dated March 2, 1998, is filed as Exhibit 16 to this Form 10-K/A.

      On November 14, 1997, TEP (and the Company) engaged Price Waterhouse
LLP as its principal accountants to audit the financial statements for the
year ending December 31, 1998.  During 1996, 1997 and the period from
December 31, 1997 to March 2, 1998, the date of the Form 10-K, the Company and
TEP have not consulted Price Waterhouse LLP on items which concerned the
application of accounting principles generally, or to a specific transaction or
group of transactions, either completed or proposed, or the type of audit
opinion that might be rendered on the financial statements except as related to
transactions for the year ending December 31, 1998.




                                    PART IV

ITEM 14. -- EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K
- -------------------------------------------------------------------------------

                                                                Page
                                                                ----
(a)   1.    Consolidated Financial Statements as of
            December 31, 1997 and 1996 and for Each
               of the Three Years in the Period Ended
               December 31, 1997.

            UniSource Energy Corporation
            ----------------------------
            Independent Auditors' Report                         37
            Consolidated Statements of Income                    38
            Consolidated Statements of Cash Flows                39
            Consolidated Balance Sheets                          40
            Consolidated Statements of Capitalization            41
            Consolidated Statements of Changes in Stockholders'
              Equity (Deficit)                                   42
            Notes to Consolidated Financial Statements           48
 
            Tucson Electric Power Company
            -----------------------------
            Independent Auditors' Report                         37
            Consolidated Statements of Income                    43
            Consolidated Statements of Cash Flows                44
            Consolidated Balance Sheets                          45
            Consolidated Statements of Capitalization            46
            Consolidated Statements of Changes in Stockholders'
             Equity (Deficit)                                    47
            Notes to Consolidated Financial Statements           48

      2.    Supplemental Consolidated Schedules for the Years
            Ended December 31, 1995 to 1997.


      Schedules I to V, inclusive, are omitted because they are not
       applicable or not required.

      3.    Exhibits.

      Reference is made to the Exhibit Index commencing on page  81

(b)     Reports on Form 8-K and 8-K/A.

      Tucson Electric Power Company
      ------------------------------

      -- Form 8-K dated November 7, 1997 (filed November 14, 1997), reporting
   on Change in the Registrant's Certifying Accountant.
      -- Form 8-K/A dated November 7, 1997 (filed November 19, 1997),
   reporting on Change in the Registrant's Certifying Accountant.
      -- Form 8-K dated November 14, 1997 (filed November 17, 1997),
   reporting on Change in the Registrant's Certifying Accountant.
      -- Form 8-K dated November 19, 1997 (filed November 24, 1997),
   reporting on the Company's Holding Company Application and Financing
   Application.

      UniSource Energy Corporation and Tucson Electric Power Company
      --------------------------------------------------------------

      -- Form 8-K dated December 30, 1997 (filed January 6, 1997), reporting
   on the UniSource Energy/TEP share exchange and the new TEP Bank Credit
   Agreement.



                                   SIGNATURES
                                   ----------

      Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed
on its behalf by the undersigned thereunto duly authorized.

                                           UNISOURCE ENERGY CORPORATION


Date: March 5, 1998                 By   Ira R. Adler
                                       ------------------------------------
                                         IRA R. ADLER
                                         Senior Vice President and Principal
                                         Financial Officer


 
                                         TUCSON ELECTRIC POWER COMPANY


Date:  March 5, 1998                By   Ira R. Adler            
                                       --------------------------------------
                                         IRA R. ADLER
                                         Senior Vice President and Principal
                                         Financial Officer


                                  EXHIBIT INDEX

2(a)  -- Agreement and Plan of Exchange, dated as of March 20, 1995, between
         TEP, UniSource Energy and NCR Holding, Inc.

*3(a) -- Restated Articles of Incorporation of TEP, filed with the ACC on
         August 11, 1994, as amended by Amendment to Article Fourth of the
         Company's Restated Articles of Incorporation, filed with the ACC on
         May 17, 1996.  (Form 10-K for year ended December 31, 1996, File No.
         1-5924--Exhibit 3(a).)

*3(b) -- Bylaws of TEP, as amended May 20, 1994.  (Form 10-Q for the quarter
         ended June 30, 1994, File No. 1-5924--Exhibit 3.)

*3(c) -- Amended and Restated Articles of Incorporation of UniSource Energy.
         (Form 8-A/A, dated January 30, 1998, File No. 1-13739--Exhibit
         2(a).)

*3(d) -- Bylaws of UniSource Energy, as amended December 11, 1997.  (Form 8-
         A, dated December 23, 1997, File No. 1-13739--Exhibit 2(b).)

*4(a)(1)-- Indenture dated as of April 1, 1941, to The Chase National Bank of
         the City of New York, as Trustee.  (Form S-7, File No. 2-59906--
         Exhibit 2(b)(1).)

*4(a)(2)-- First Supplemental Indenture, dated as of October 1, 1946.  (Form
         S-7, File No. 2-59906--Exhibit 2(b)(2).)

*4(a)(3)-- Second Supplemental Indenture dated as of October 1, 1947.  (Form
         S-7, File No. 2-59906--Exhibit 2(b)(3).)

*4(a)(4)-- Third Supplemental Indenture, dated as of April 1, 1949.  (Form S-
         7, File No. 2-59906--Exhibit 2(b)(4).)

*4(a)(5)-- Fourth Supplemental Indenture, dated as of December 1, 1952.
         (Form S-7, File No. 2-59906--Exhibit 2(b)(5).)

*4(a)(6)-- Fifth Supplemental Indenture, dated as of January 1, 1955.  (Form
         S-7, File No. 2-59906--Exhibit 2(b)(6).)

*4(a)(7)-- Sixth Supplemental Indenture, dated as of January 1, 1958.  (Form
         S-7, File No. 2-59906--Exhibit 2(b)(7).)

*4(a)(8)-- Seventh Supplemental Indenture, dated as of November 1, 1959.
         (Form S-7, File No. 2-59906--Exhibit 2(b)(8).)

*4(a)(9)-- Eighth Supplemental Indenture, dated as of November 1, 1961.
         (Form S-7, File No. 2-59906--Exhibit 2(b)(9).)

*4(a)(10)-- Ninth Supplemental Indenture, dated as of February 20, 1964.
         (Form S-7, File No. 2-59906--Exhibit 2(b)(10).)

*4(a)(11)-- Tenth Supplemental Indenture, dated as of February 1, 1965.
         (Form S-7, File No. 2-59906--Exhibit 2(b)(11).)

*4(a)(12)-- Eleventh Supplemental Indenture, dated as of February 1,
         1966.  (Form S-7, File No. 2-59906--Exhibit 2(b)(12).)

*4(a)(13)-- Twelfth Supplemental Indenture, dated as of November 1, 1969.
         (Form S-7, File No. 2-59906--Exhibit 2(b)(13).)

*4(a)(14)-- Thirteenth Supplemental Indenture, dated as of January 20,
         1970.  (Form S-7, File No. 2-59906--Exhibit 2(b)(14).)

*4(a)(15)-- Fourteenth Supplemental Indenture, dated as of September 1,
         1971.  (Form S-7, File No. 2-59906--Exhibit 2(b)(15).)

*4(a)(16)-- Fifteenth Supplemental Indenture, dated as of March 1, 1972.
         (Form S-7, File No. 2-59906--Exhibit 2(b)(16).)

*4(a)(17)-- Sixteenth Supplemental Indenture, dated as of May 1, 1973.
         (Form S-7, File No. 2-59906--Exhibit 2(b)(17).)

*4(a)(18)-- Seventeenth Supplemental Indenture, dated as of November 1,
         1975.  (Form S-7, File No. 2-59906--Exhibit 2(b)(18).)

*4(a)(19)-- Eighteenth Supplemental Indenture, dated as of November 1,
         1975.  (Form S-7, File No. 2-59906--Exhibit 2(b)(19).)

*4(a)(20)-- Nineteenth Supplemental Indenture, dated as of July 1, 1976.
         (Form S-7, File No. 2-59906--Exhibit 2(b)(20).)

*4(a)(21)-- Twentieth Supplemental Indenture, dated as of October 1,
         1977.  (Form S-7, File No. 2-59906--Exhibit 2(b)(21).)

*4(a)(22)-- Twenty-first Supplemental Indenture, dated as of November 1,
         1977.  (Form 10-K for year ended December 31, 1980, File No. 1-5924-
         -Exhibit 4(v).)

*4(a)(23)-- Twenty-second Supplemental Indenture, dated as of January 1,
         1978.  (Form 10-K for year ended December 31, 1980, File No. 1-5924-
         -Exhibit 4(w).)

*4(a)(24)-- Twenty-third Supplemental Indenture, dated as of July 1,
         1980.  (Form 10-K for year ended December 31, 1980, File No. 1-5924-
         -Exhibit 4(x).)

*4(a)(25)-- Twenty-fourth Supplemental Indenture, dated as of October 1,
         1980.  (Form 10-K for year ended December 31, 1980, File No. 1-5924-
         -Exhibit 4(y).)

*4(a)(26)-- Twenty-fifth Supplemental Indenture, dated as of April 1,
         1981.  (Form 10-Q for quarter ended March 31, 1981, File No. 1-5924-
         -Exhibit 4(a).)

*4(a)(27)-- Twenty-sixth Supplemental Indenture, dated as of April 1,
         1981.  (Form 10-Q for quarter ended March 31, 1981, File No. 1-5924-
         -Exhibit 4(b).)

*4(a)(28)-- Twenty-seventh Supplemental Indenture, dated as of October 1,
         1981.  (Form 10-Q for quarter ended September 30, 1982, File No. 1-
         5924--Exhibit 4(c).)

*4(a)(29)-- Twenty-eighth Supplemental Indenture, dated as of June 1,
         1990.  (Form 10-Q for quarter ended June 30, 1990, File No. 1-5924--
         Exhibit 4(a)(1).)

*4(a)(30)-- Twenty-ninth Supplemental Indenture, dated as of December 1,
         1992.  (Form S-1, Registration No. 33-55732--Exhibit 4(a)(30).)

*4(a)(31)-- Thirtieth Supplemental Indenture, dated as of December 1,
         1992.  (Form S-1, Registration No. 33-55732--Exhibit 4(a)(31).)

*4(a)(32)-- Thirty-first Supplemental Indenture, dated as of May 1, 1996.
         (Form 10-K for the year ended December 31, 1996, File No. 1-5924--
         Exhibit 4(a)(32).)

*4(a)(33)-- Thirty-second Supplemental Indenture, dated as of May 1,
         1996.  (Form 10-K for the year ended December 31, 1996, File No. 1-
         5924--Exhibit 4(a)(33).)

*4(b)(1)-- Installment Sale Agreement, dated as of December 1, 1973, among
         the City of Farmington, New Mexico, Public Service Company of New
         Mexico and TEP. (Form 8-K for the month of January 1974, File No. 0-
         269--Exhibit 3.)

*4(b)(2)-- Ordinance No. 486, adopted December 17, 1973, of the City of
         Farmington, New Mexico. (Form 8-K for the month of January 1974,
         File No. 0-269--Exhibit 4.)

*4(b)(3)-- Amended and Restated Installment Sale Agreement dated as of April
         1, 1997, between the City of Farmington, New Mexico and TEP relating
         to Pollution Control Revenue Bonds, 1997 Series A (Tucson Electric
         Power Company San Juan Project).  (Form 10-Q for the quarter ended
         March 31, 1997, File No. 1-5924--Exhibit 4(a).)

*4(b)(4)-- City of Farmington, New Mexico Ordinance No. 97-1055, adopted
         April 17, 1997, authorizing Pollution Control Revenue Bonds, 1997
         Series A (Tucson Electric Power Company San Juan Project).  (Form
         10-Q for the quarter ended March 31, 1997, File No. 1-5924--Exhibit
         4(b).)

*4(c)(1)-- Loan Agreement, dated as of September 15, 1981, between the
         Industrial Development Authority of the County of Apache, Arizona
         and TEP, relating to Floating Rate Monthly Demand Pollution Control
         Revenue Bonds, 1981 Series A (Tucson Electric Power Company
         Project).  (Form 10-K for year ended December 31, 1981, File No. 1-
         5924--Exhibit 4(d)(1).)

*4(c)(2)-- Indenture of Trust, dated as of September 15, 1981, between the
         Apache County Authority and Morgan Guaranty Trust Company of New
         York, authorizing Floating Rate Monthly Demand Pollution Control
         Revenue Bonds, 1981 Series A (Tucson Electric Power Company
         Project).  (Form 10-K for year ended December 31, 1981, File No. 1-
         5924--Exhibit 4(d)(2).)

*4(d)(1)-- Second Supplemental Loan Agreement, dated as of October 1, 1981,
         between the Apache County Authority and TEP, relating to Floating
         Rate Monthly Demand Pollution Control Revenue Bonds, 1981 Series B
         (Tucson Electric Power Company Project).  (Form 10-K for year ended
         December 31, 1982, File No. 1-5924--Exhibit 4(f)(1).)

*4(d)(2) -- Second Supplemental Indenture, dated as of October 1, 1981, between
         the Apache County Authority and Morgan Guaranty, relating to Floating
         Rate Monthly Demand Pollution Control Revenue Bonds, 1981 Series B
         (Tucson Electric Power Company Project).  (Form 10-K for year ended
         December 31, 1982, File No. 1-5924--Exhibit 4(f)(2).)

*4(d)(3) -- Third Supplemental Loan Agreement, dated as of
         December 1, 1985, between the Apache County Authority and TEP,
         relating to Floating Rate Monthly Demand Pollution Control Revenue
         Bonds, 1981 Series B (Tucson Electric Power Company Project).  (Form
         10-K for the year ended December 31, 1987, File No. 1-5924--Exhibit
         4(d)(3).)

*4(d)(4)-- Third Supplemental Indenture, dated as of December 1, 1985,
         between the Apache County Authority and Morgan Guaranty, relating to
         Floating Rate Monthly Demand Pollution Control Revenue Bonds, 1981
         Series B (Tucson Electric Power Company Project).  (Form 10-K for
         the year ended December 31, 1987, File No. 1-5924--Exhibit 4(d)(4).)

*4(d)(5)-- Fourth Supplemental Indenture of Trust, dated as of March 31,
         1992, between the Apache County Authority and Morgan Guaranty,
         relating to Pollution Control Revenue Bonds, 1981 Series B (Tucson
         Electric Power Company Project). (Form S-4, Registration No. 33-
         52860--Exhibit 4(d)(5).)

*4(d)(6)-- Fourth Supplemental Loan Agreement, dated as of March 31, 1992,
         between the Apache County Authority and TEP, relating to Pollution
         Control Revenue Bonds, 1981 Series B (Tucson Electric Power Company
         Project). (Form S-4, Registration No. 33-52860--Exhibit 4(d)(6).)

*4(e)(1)-- Loan Agreement, dated as of October 1, 1982, between the Pima
         County Authority and TEP relating to Floating Rate Monthly Demand
         Industrial Development Revenue Bonds, 1982 Series A (Tucson Electric
         Power Company Irvington Project). (Form 10-Q for quarter ended
         September 30, 1982, File No. 1-5924--Exhibit 4(a).)

*4(e)(2)-- Indenture of Trust, dated as of October 1, 1982, between the Pima
         County Authority and Morgan Guaranty authorizing Floating Rate
         Monthly Demand Industrial Development Revenue Bonds, 1982 Series A
         (Tucson Electric Power Company Irvington Project). (Form 10-Q for
         quarter ended September 30, 1982, File No. 1-5924--Exhibit 4(b).)

*4(e)(3)-- First Supplemental Loan Agreement, dated as of March 31, 1992,
         between the Pima County Authority and TEP relating to Industrial
         Development Revenue Bonds, 1982 Series A (Tucson Electric Power
         Company Irvington Project).  (Form S-4, Registration No. 33-52860--
         Exhibit 4(h)(3).)

*4(e)(4)-- First Supplemental Indenture of Trust, dated as of March 31, 1992,
         between the Pima County Authority and Morgan Guaranty relating to
         Industrial Development Revenue Bonds, 1982 Series A (Tucson Electric
         Power Company Irvington Project). (Form S-4, Registration No. 33-
         52860--Exhibit 4(h)(4).)

*4(f)(1)-- Loan Agreement, dated as of December 1, 1982, between the Pima
         County Authority and TEP relating to Floating Rate Monthly Demand
         Industrial Development Revenue Bonds, 1982 Series A (Tucson Electric
         Power Company Projects). (Form 10-K for year ended December 31,
         1982, File No. 1-5924--Exhibit 4(k)(1).)

*4(f)(2)-- Indenture of Trust, dated as of December 1, 1982, between the Pima
         County Authority and Morgan Guaranty authorizing Floating Rate
         Monthly Demand Industrial Development Revenue Bonds, 1982 Series A
         (Tucson Electric Power Company Projects). (Form 10-K for year ended
         December 31, 1982, File No. 1-5924--Exhibit 4(k)(2).)

*4(f)(3)-- First Supplemental Loan Agreement, dated as of March 31, 1992,
         between the Pima County Authority and TEP relating to Industrial
         Development Revenue Bonds, 1982 Series A (Tucson Electric Power
         Company Projects). (Form S-4, Registration No. 33-52860--Exhibit
         4(i)(3).)

*4(f)(4)-- First Supplemental Indenture of Trust, dated as of March 31, 1992,
         between the Pima County Authority and Morgan Guaranty relating to
         Industrial Development Revenue Bonds, 1982 Series A (Tucson Electric
         Power Company Projects). (Form S-4, Registration No. 33-52860--
         Exhibit 4(i)(4).)

*4(g)(1)-- Loan Agreement, dated as of December 1, 1983, between the Apache
         County Authority and TEP relating to Floating Rate Monthly Demand
         Industrial Development Revenue Bonds, 1983 Series A (Tucson Electric
         Power Company Springerville Project). (Form 10-K for year ended
         December 31, 1983, File No. 1-5924--Exhibit 4(l)(1).)

*4(g)(2)-- Indenture of Trust, dated as of December 1, 1983, between the
         Apache County Authority and Morgan Guaranty authorizing Floating
         Rate Monthly Demand Industrial Development Revenue Bonds, 1983
         Series A (Tucson Electric Power Company Springerville Project).
         (Form 10-K for year ended December 31, 1983, File No. 1-5924--
         Exhibit 4(l)(2).)

*4(g)(3)-- First Supplemental Loan Agreement, dated as of December 1, 1985,
         between the Apache County Authority and TEP relating to Floating
         Rate Monthly Demand Industrial Development Revenue Bonds, 1983
         Series A (Tucson Electric Power Company Springerville Project).
         (Form 10-K for the year ended December 31, 1987, File No. 1-5924--
         Exhibit 4(k)(3).)

*4(g)(4)-- First Supplemental Indenture, dated as of December 1, 1985,
         between the Apache County Authority and Morgan Guaranty relating to
         Floating Rate Monthly Demand Industrial Development Revenue Bonds,
         1983 Series A (Tucson Electric Power Company Springerville Project).
         (Form 10-K for the year ended December 31, 1987, File No. 1-5924--
         Exhibit 4(k)(4).)

*4(g)(5)-- Second Supplemental Loan Agreement, dated as of March 31, 1992,
         between the Apache County Authority and TEP relating to Industrial
         Development Revenue Bonds, 1983 Series A (Tucson Electric Power
         Company Springerville Project).  (Form S-4, Registration No. 33-
         52860--Exhibit 4(k)(5).)

*4(g)(6)-- Second Supplemental Indenture of Trust, dated as of March 31,
         1992, between the Apache County Authority and Morgan Guaranty
         relating to Industrial Development Revenue Bonds, 1983 Series A
         (Tucson Electric Power Company Springerville Project).  (Form S-4,
         Registration No. 33-52860--Exhibit 4(k)(6).)

*4(h)(1)-- Loan Agreement, dated as of December 1, 1983, between the Apache
         County Authority and TEP relating to Variable Rate Demand Industrial
         Development Revenue Bonds, 1983 Series B (Tucson Electric Power
         Company Springerville Project). (Form 10-K for year ended December
         31, 1983, File No. 1-5924--Exhibit 4(m)(1).)

*4(h)(2)-- Indenture of Trust, dated as of December 1, 1983, between the
         Apache County Authority and Morgan Guaranty authorizing Variable
         Rate Demand Industrial Development Revenue Bonds, 1983 Series B
         (Tucson Electric Power Company Springerville Project). (Form 10-K
         for year ended December 31, 1983, File No. 1-5924--Exhibit 4(m)(2).)

*4(h)(3)-- First Supplemental Loan Agreement, dated as of December 1, 1985,
         between the Apache County Authority and TEP relating to Floating
         Rate Monthly Demand Industrial Development Revenue Bonds, 1983
         Series B (Tucson Electric Power Company Springerville Project).
         (Form 10-K for the year ended December 31, 1987, File No. 1-5924--
         Exhibit 4(l)(3).)

*4(h)(4)-- First Supplemental Indenture, dated as of December 1, 1985,
         between the Apache County Authority and Morgan Guaranty relating to
         Floating Rate Monthly Demand Industrial Development Revenue Bonds,
         1983 Series B (Tucson Electric Power Company Springerville Project).
         (Form 10-K for the year ended December 31, 1987, File No. 1-5924--
         Exhibit 4(l)(4).)

*4(h)(5)-- Second Supplemental Loan Agreement, dated as of March 31, 1992,
         between the Apache County Authority and TEP relating to Industrial
         Development Revenue Bonds, 1983 Series B (Tucson Electric Power
         Company Springerville Project).  (Form S-4, Registration No. 33-
         52860--Exhibit 4(l)(5).)

*4(h)(6)-- Second Supplemental Indenture of Trust, dated as of March 31,
         1992, between the Apache County Authority and Morgan Guaranty
         relating to Industrial Development Revenue Bonds, 1983 Series B
         (Tucson Electric Power Company Springerville Project).  (Form S-4,
         Registration No. 33-52860--Exhibit 4(l)(6).)

*4(i)(1)-- Loan Agreement, dated as of December 1, 1983, between the Apache
         County Authority and TEP relating to Variable Rate Demand Industrial
         Development Revenue Bonds, 1983 Series C (Tucson Electric Power
         Company Springerville Project). (Form 10-K for year ended December
         31, 1983, File No. 1-5924--Exhibit 4(n)(1).)

*4(i)(2)-- Indenture of Trust, dated as of December 1, 1983, between the
         Apache County Authority and Morgan Guaranty authorizing Variable
         Rate Demand Industrial Development Revenue Bonds, 1983 Series C
         (Tucson Electric Power Company Springerville Project).  (Form 10-K
         for year ended December 31, 1983, File No. 1-5924--Exhibit 4(n)(2).)

*4(i)(3)-- First Supplemental Loan Agreement, dated as of December 1, 1985,
         between the Apache County Authority and TEP relating to Floating
         Rate Monthly Demand Industrial Development Revenue Bonds, 1983
         Series C (Tucson Electric Power Company Springerville Project).
         (Form 10-K for the year ended December 31, 1987, File No. 1-5924--
         Exhibit 4(m)(3).)

*4(i)(4)-- First Supplemental Indenture, dated as of December 1, 1985,
         between the Apache County Authority and Morgan Guaranty relating to
         Floating Rate Monthly Demand Industrial Development Revenue Bonds,
         1983 Series C (Tucson Electric Power Company Springerville Project).
         (Form 10-K for the year ended December 31, 1987, File No. 1-5924--
         Exhibit 4(m)(4).)

*4(i)(5)-- Second Supplemental Loan Agreement, dated as of March 31, 1992,
         between the Apache County Authority and TEP relating to Industrial
         Development Revenue Bonds, 1983 Series C (Tucson Electric Power
         Company Springerville Project).  (Form S-4, Registration No. 33-
         52860--Exhibit 4(m)(5).)

*4(i)(6)-- Second Supplemental Indenture of Trust, dated as of March 31,
         1992, between the Apache County Authority and Morgan Guaranty
         relating to Industrial Development Revenue Bonds, 1983 Series C
         (Tucson Electric Power Company Springerville Project).  (Form S-4,
         Registration No. 33-52860--Exhibit 4(m)(6).)

*4(j) -- Reimbursement Agreement, dated as of September 15, 1981, as amended,
         between TEP and Manufacturers Hanover Trust Company. (Form 10-K for
         the year ended December 31, 1984, File No. 1-5924--Exhibit 4(o)(4).)

*4(k)(1)-- Loan Agreement, dated as of December 1, 1985, between the Apache
         County Authority and TEP relating to Variable Rate Demand Industrial
         Development Revenue Bonds, 1985 Series A (Tucson Electric Power
         Company Springerville Project). (Form 10-K for the year ended
         December 31, 1985, File No. 1-5924---Exhibit 4(r)(1).)

*4(k)(2)-- Indenture of Trust, dated as of December 1, 1985, between the
         Apache County Authority and Morgan Guaranty authorizing Variable
         Rate Demand Industrial Development Revenue Bonds, 1985 Series A
         (Tucson Electric Power Company Springerville Project). (Form 10-K
         for the year ended December 31, 1985, File No. 1-5924--Exhibit
         4(r)(2).)

*4(k)(3)-- First Supplemental Loan Agreement, dated as of March 31, 1992,
         between the Apache County Authority and TEP relating to Industrial
         Development Revenue Bonds, 1985 Series A (Tucson Electric Power
         Company Springerville Project).  (Form S-4, Registration No. 33-
         52860--Exhibit 4(o)(3).)

*4(k)(4)-- First Supplemental Indenture of Trust, dated as of March 31, 1992,
         between the Apache County Authority and Morgan Guaranty relating to
         Industrial Development Revenue Bonds, 1985 Series A (Tucson Electric
         Power Company Springerville Project).  (Form S-4, Registration No.
         33-52860--Exhibit 4(o)(4).)

*4(l) -- Warrant Agreement and Form of Warrant, dated as of December 15,
         1992.  (Form S-1, Registration No. 33-55732--Exhibit 4(q).)

*4(m)(1)-- Indenture of Mortgage and Deed of Trust dated as of December 1,
         1992, to Bank of Montreal Trust Company, Trustee.  (Form S-1,
         Registration No. 33-55732--Exhibit 4(r)(1).)

*4(m)(2)-- Supplemental Indenture No. 1 creating a series of bonds designated
         Second Mortgage Bonds, Collateral Series A, dated as of December 1,
         1992.  (Form S-1, Registration No. 33-55732-Exhibit 4(r)(2).)

4(m)(3)--Supplemental Indenture No. 2 creating a series of bonds designated
         Second Mortgage Bonds, Collateral Series B, dated as of December 1,
         1997.

*4(n)(1)-- Loan Agreement, dated as of April 1, 1997, between Coconino
         County, Arizona Pollution Control Corporation and TEP relating to
         Pollution Control Revenue Bonds, 1997 Series A (Tucson Electric
         Power Company Navajo Project).  (Form 10-Q for the quarter ended
         March 31, 1997, File No. 1-5924--Exhibit 4(c).)

*4(n)(2)-- Indenture of Trust, dated as of April 1, 1997, between Coconino
         County, Arizona Pollution Control Corporation and First Trust of New
         York, National Association, authorizing Pollution Control Revenue
         Bonds, 1997 Series A  (Tucson Electric Power Company Navajo
         Project).  (Form 10-Q for the quarter ended March 31, 1997, File No.
         1-5924--Exhibit 4(d).)

*4(o)(1)-- Loan Agreement, dated as of April 1, 1997, between Coconino
         County, Arizona Pollution Control Corporation and TEP relating to
         Pollution Control Revenue Bonds, 1997 Series B (Tucson Electric
         Power Company Navajo Project).  (Form 10-Q for the quarter ended
         March 31, 1997, File No. 1-5924--Exhibit 4(e).)

*4(o)(2)-- Indenture of Trust, dated as of April 1, 1997, between Coconino
         County, Arizona Pollution Control Corporation and First Trust of New
         York, National Association, authorizing Pollution Control Revenue
         Bonds, 1997 Series B  (Tucson Electric Power Company Navajo
         Project). (Form 10-Q for the quarter ended March 31, 1997, File No.
         1-5924--Exhibit 4(f).)

*4(p)(1)-- Loan Agreement, dated as of September 15, 1997, between The
         Industrial Development Authority of the County of Pima and TEP
         relating to Industrial Development Revenue Bonds, 1997 Series A
         (Tucson Electric Power Company Project).  (Form 10-Q for the quarter
         ended September 30, 1997, File No. 1-5924--Exhibit 4(a).)

*4(p)(2)-- Indenture of Trust, dated as of September 15, 1997, between The
         Industrial Development Authority of the County of Pima and First
         Trust of New York, National Association, authorizing Industrial
         Development Revenue Bonds, 1997 Series A (Tucson Electric Power
         Company Project).  (Form 10-Q for the quarter ended September 30,
         1997, File No. 1-5924--Exhibit 4(b).)

*4(q)(1)-- Loan Agreement, dated as of September 15, 1997, between The
         Industrial Development Authority of the County of Pima and TEP
         relating to Industrial Development Revenue Bonds, 1997 Series B
         (Tucson Electric Power Company Project).  (Form 10-Q for the quarter
         ended September 30, 1997, File No. 1-5924--Exhibit 4(c).)

*4(q)(2)-- Indenture of Trust, dated as of September 15, 1997, between The
         Industrial Development Authority of the County of Pima and First
         Trust of New York, National Association, authorizing Industrial
         Development Revenue Bonds, 1997 Series B (Tucson Electric Power
         Company Project).  (Form 10-Q for the quarter ended September 30,
         1997, File No. 1-5924--Exhibit 4(d).)

*4(r)(1)-- Loan Agreement, dated as of September 15, 1997, between The
         Industrial Development Authority of the County of Pima and TEP
         relating to Industrial Development Revenue Bonds, 1997 Series C
         (Tucson Electric Power Company Project).  (Form 10-Q for the quarter
         ended September 30, 1997, File No. 1-5924--Exhibit 4(e).)

*4(r)(2)-- Indenture of Trust, dated as of September 15, 1997, between The
         Industrial Development Authority of the County of Pima and First
         Trust of New York, National Association, authorizing Industrial
         Development Revenue Bonds, 1997 Series C (Tucson Electric Power
         Company Project).  (Form 10-Q for the quarter ended September 30,
         1997, File No. 1-5924--Exhibit 4(f).)

*10(a)(1)--Lease Agreements, dated as of December 1, 1984, between
         Valencia and United States Trust Company of New York, as Trustee,
         and Thomas B. Zakrzewski, as Co-Trustee, as amended and
         supplemented. (Form 10-K for the year ended December 31, 1984, File
         No. 1-5924--Exhibit 10(d)(1).)

*10(a)(2)--Guaranty and Agreements, dated as of December 1, 1984,
         between TEP and United States Trust Company of New York, as Trustee,
         and Thomas B. Zakrzewski, as Co-Trustee. (Form 10-K for the year
         ended December 31, 1984, File No. 1-5924--Exhibit 10(d)(2).)

*10(a)(3)--General Indemnity Agreements, dated as of December 1, 1984,
         between Valencia and TEP, as Indemnitors; General Foods Credit
         Corporation, Harvey Hubbell Financial, Inc. and J. C. Penney
         Company, Inc. as Owner Participants; United States Trust Company of
         New York, as Owner Trustee; Teachers Insurance and Annuity
         Association of America as Loan Participant; and Marine Midland Bank,
         N.A., as Indenture Trustee. (Form 10-K for the year ended December
         31, 1984, File No. 1-5924--Exhibit 10(d)(3).)

*10(a)(4)--Tax Indemnity Agreements, dated as of December 1, 1984,
         between General Foods Credit Corporation, Harvey Hubbell Financial,
         Inc. and J. C. Penney Company, Inc., each as Beneficiary under a
         separate Trust Agreement dated December 1, 1984, with United States
         Trust of New York as Owner Trustee, and Thomas B. Zakrzewski as Co-
         Trustee, Lessor, and Valencia, Lessee, and TEP, Indemnitors. (Form
         10-K for the year ended December 31, 1984, File No. 1-5924--Exhibit
         10(d)(4).)

*10(a)(5)--Amendment No. 1, dated December 31, 1984, to the Lease
         Agreements, dated December 1, 1984, between Valencia and United
         States Trust Company of New York, as Owner Trustee, and Thomas B.
         Zakrzewski as Co-Trustee. (Form 10-K for the year ended December 31,
         1986, File No. 1-5924--Exhibit 10(e)(5).)

*10(a)(6)--Amendment No. 2, dated April 1, 1985, to the Lease
         Agreements, dated December 1, 1984, between Valencia and United
         States Trust Company of New York, as Owner Trustee, and Thomas B.
         Zakrzewski as Co-Trustee. (Form 10-K for the year ended December 31,
         1986, File No. 1-5924--Exhibit 10(e)(6).)

*10(a)(7)--Amendment No. 3, dated August 1, 1985, to the Lease
         Agreements, dated December 1, 1984, between Valencia and United
         States Trust Company of New York, as Owner Trustee, and Thomas
         Zakrzewski as Co-Trustee.  (Form 10-K for the year ended December
         31, 1986, File No. 1-5924--Exhibit 10(e)(7).)

*10(a)(8)--Amendment No. 4, dated June 1, 1986, to the Lease Agreement,
         dated December 1, 1984, between Valencia and United States Trust
         Company of New York as Owner Trustee, and Thomas Zakrzewski as Co-
         Trustee, under a Trust Agreement dated as of December 1, 1984, with
         General Foods Credit Corporation as Owner Participant. (Form 10-K
         for the year ended December 31, 1986, File No. 1-5924--Exhibit
         10(e)(8).)

*10(a)(9)--Amendment No. 4, dated June 1, 1986, to the Lease Agreement,
         dated December 1, 1984, between Valencia and United States Trust
         Company of New York as Owner Trustee, and Thomas Zakrzewski as Co-
         Trustee, under a Trust Agreement dated as of December 1, 1984, with
         J. C. Penney Company, Inc. as Owner Participant. (Form 10-K for the
         year ended December 31, 1986, File No. 1-5924--Exhibit 10(e)(9).)

*10(a)(10)--Amendment No. 4, dated June 1, 1986, to the Lease Agreement,
         dated December 1, 1984, between Valencia and United States Trust
         Company of New York as Owner Trustee, and Thomas Zakrzewski as Co-
         Trustee, under a Trust Agreement dated as of December 1, 1984, with
         Harvey Hubbell Financial Inc. as Owner Participant. (Form 10-K for
         the year ended December 31, 1986, File No. 1-5924--Exhibit
         10(e)(10).)

*10(a)(11)--Lease Amendment No. 5 and Supplement No. 2, to the Lease
         Agreement, dated July 1, 1986, between Valencia, United States Trust
         Company of New York as Owner Trustee, and Thomas Zakrzewski as Co-
         Trustee and J. C. Penney as Owner Participant. (Form 10-K for the
         year ended December 31, 1986, File No. 1-5924--Exhibit 10(e)(11).)

*10(a)(12)--Lease Amendment No. 5, to the Lease Agreement, dated June 1,
         1987, between Valencia, United States Trust Company of New York as
         Owner Trustee, and Thomas Zakrzewski as Co-Trustee and General Foods
         Credit Corporation as Owner Participant.  (Form 10-K for the year
         ended December 31, 1988, File No. 1-5924--Exhibit 10(f)(12).)

*10(a)(13)--Lease Amendment No. 5, to the Lease Agreement, dated June 1,
         1987, between Valencia, United States Trust Company of New York as
         Owner Trustee, and Thomas Zakrzewski as Co-Trustee and Harvey
         Hubbell Financial Inc. as Owner Participant. (Form 10-K for the year
         ended December 31, 1988, File No. 1-5924--Exhibit 10(f)(13).)

*10(a)(14)--Lease Amendment No. 6, to the Lease Agreement, dated June 1,
         1987, between Valencia, United States Trust Company of New York as
         Owner Trustee, and Thomas Zakrzewski as Co-Trustee and J. C. Penney
         Company, Inc. as Owner Participant. (Form 10-K for the year ended
         December 31, 1988, File No. 1-5924--Exhibit 10(f)(14).)

*10(a)(15)--Lease Supplement No. 1, dated December 31, 1984, to Lease
         Agreements, dated December 1, 1984, between Valencia, as Lessee and
         United States Trust Company of New York and Thomas B. Zakrzewski, as
         Owner Trustee and Co-Trustee, respectively (document filed relates
         to General Foods Credit Corporation; documents relating to Harvey
         Hubbel Financial, Inc. and JC Penney Company, Inc. are not filed but
         are substantially similar). (Form S-4, Registration No. 33-52860--
         Exhibit 10(f)(15).)

*10(a)(16)--Amendment No. 1, dated June 1, 1986, to the General Indemnity
         Agreement, dated as of December 1, 1984, between Valencia and TEP,
         as Indemnitors, General Foods Credit Corporation, as Owner
         Participant, United States Trust Company of New York, as Owner
         Trustee, Teachers Insurance and Annuity Association of America, as
         Loan Participant, and Marine Midland Bank, N.A., as Indenture
         Trustee. (Form 10-K for the year ended December 31, 1986, File No.
         1-5924--Exhibit 10(e)(12).)

*10(a)(17)--Amendment No. 1, dated June 1, 1986, to the General Indemnity
         Agreement, dated as of December 1, 1984, between Valencia and TEP,
         as Indemnitors, J. C. Penney Company, Inc., as Owner Participant,
         United States Trust Company of New York, as Owner Trustee, Teachers
         Insurance and Annuity Association of America, as Loan Participant,
         and Marine Midland Bank, N.A., as Indenture Trustee. (Form 10-K for
         the year ended December 31, 1986, File No. 1-5924--Exhibit
         10(e)(13).)

*10(a)(18)--Amendment No. 1, dated June 1, 1986, to the General Indemnity
         Agreement, dated as of December 1, 1984, between Valencia and TEP,
         as Indemnitors, Harvey Hubbell Financial, Inc., as Owner
         Participant, United States Trust Company of New York, as Owner
         Trustee, Teachers Insurance and Annuity Association of America, as
         Loan Participant, and Marine Midland Bank, N.A., as Indenture
         Trustee.  (Form 10-K for the year ended December 31, 1986, File No.
         1-5924--Exhibit 10(e)(14).)

*10(a)(19)--Amendment No. 2, dated as of July 1, 1986, to the General
         Indemnity Agreement, dated as of December 1, 1984, between Valencia
         and TEP, as Indemnitors, J. C. Penney Company, Inc., as Owner
         Participant, United States Trust Company of New York, as Owner
         Trustee, Teachers Insurance and Annuity Association of America, as
         Loan Participant, and Marine Midland Bank, N.A., as Indenture
         Trustee. (Form S-4, Registration No. 33-52860--Exhibit 10(f)(19).)

*10(a)(20)--Amendment No. 2, dated as of June 1, 1987, to the General
         Indemnity Agreement, dated as of December 1, 1984, between Valencia
         and TEP, as Indemnitors, General Foods Credit Corporation, as Owner
         Participant, United States Trust Company of New York, as Owner
         Trustee, Teachers Insurance and Annuity Association of America, as
         Loan Participant, and Marine Midland Bank, N.A., as Indenture
         Trustee. (Form S-4, Registration No. 33-52860--Exhibit 10(f)(20).)

*10(a)(21)--Amendment No. 2, dated as of June 1, 1987, to the General
         Indemnity Agreement, dated as of December 1, 1984, between Valencia
         and TEP, as Indemnitors, Harvey Hubbell Financial, Inc., as Owner
         Participant, United States Trust Company of New York, as Owner
         Trustee, Teachers Insurance and Annuity Association of America, as
         Loan Participant, and Marine Midland Bank, N.A., as Indenture
         Trustee. (Form S-4, Registration No. 33-52860--Exhibit 10(f)(21).)

*10(a)(22)-- Amendment No. 3, dated as of June 1, 1987, to the General
         Indemnity Agreement, dated as of December 1, 1984, between Valencia
         and TEP, as Indemnitors, J. C. Penney Company, Inc., as Owner
         Participant, United States Trust Company of New York, as Owner
         Trustee, Teachers Insurance and Annuity Association of America, as
         Loan Participant, and Marine Midland Bank, N.A., as Indenture
         Trustee. (Form S-4, Registration No. 33-52860--Exhibit 10(f)(22).)

*10(a)(23)--Supplemental Tax Indemnity Agreement, dated July 1, 1986,
         between J. C. Penney Company, Inc., as Owner Participant, and
         Valencia and TEP, as Indemnitors. (Form 10-K for the year ended
         December 31, 1986, File No. 1-5924--Exhibit 10(e)(15).)

*10(a)(24)--Supplemental General Indemnity Agreement, dated as of July 1,
         1986, among Valencia and TEP, as Indemnitors, J. C. Penney Company,
         Inc., as Owner Participant, United States Trust Company of New York,
         as Owner Trustee, Teachers Insurance and Annuity Association of
         America, as Loan Participant, and Marine Midland Bank, N.A., as
         Indenture Trustee. (Form 10-K for the year ended December 31, 1986,
         File No. 1-5924--Exhibit 10(e)(16).)

*10(a)(25)--Amendment No. 1, dated as of June 1, 1987, to the
         Supplemental General Indemnity Agreement, dated as of July 1, 1986,
         among Valencia and TEP, as Indemnitors, J. C. Penney Company, Inc.,
         as Owner Participant, United States Trust Company of New York, as
         Owner Trustee, Teachers Insurance and Annuity Association of
         America, as Loan Participant, and Marine Midland Bank, N.A., as
         Indenture Trustee. (Form S-4, Registration No. 33-52860--Exhibit
         10(f)(25).)

*10(a)(26)--Valencia Agreement, dated as of June 30, 1992, among TEP, as
         Guarantor, Valencia, as Lessee, Teachers Insurance and Annuity
         Association of America, as Loan Participant, Marine Midland Bank,
         N.A., as Indenture Trustee, United States Trust Company of New York,
         as Owner Trustee, and Thomas B. Zakrzewski, as Co-Trustee, and the
         Owner Participants named therein relating to the Restructuring of
         Valencia's lease of the coal-handling facilities at the
         Springerville Generating Station. (Form S-4, Registration No. 33-
         52860--Exhibit 10(f)(26).)

*10(a)(27)--Amendment, dated as of December 15, 1992, to the Lease
         Agreements, dated December 1, 1984, between Valencia, as Lessee, and
         United States Trust Company of New York, as Owner Trustee, and
         Thomas B. Zakrzewski, as Co-Trustee.  (Form S-1, Registration No.
         33-55732--Exhibit 10(f)(27).)

*10(b)(1)--Lease Agreements, dated as of December 1, 1985, between TEP
         and San Carlos Resources Inc. (San Carlos) (a wholly-owned
         subsidiary of the Registrant) jointly and severally, as Lessee, and
         Wilmington Trust Company, as Trustee, as amended and supplemented.
         (Form 10-K for the year ended December 31, 1985, File No. 1-5924--
         Exhibit 10(f)(1).)

*10(b)(2)--Tax Indemnity Agreements, dated as of December 1, 1985,
         between Philip Morris Credit Corporation, IBM Credit Financing
         Corporation and Emerson Finance Co., each as beneficiary under a
         separate trust agreement, dated as of December 1, 1985, with
         Wilmington Trust Company, as Owner Trustee, and William J. Wade, as
         Co-Trustee, and TEP and San Carlos, as Lessee.  (Form 10-K for the
         year ended December 31, 1985, File No. 1-5924--Exhibit 10(f)(2).)

*10(b)(3)--Participation Agreement, dated as of December 1, 1985, among
         TEP and San Carlos as Lessee, Philip Morris Credit Corporation, IBM
         Credit Financing Corporation, and Emerson Finance Co. as Owner
         Participants, Wilmington Trust Company as Owner Trustee, The
         Sumitomo Bank, Limited, New York Branch, as Loan Participant, and
         Bankers Trust Company, as Indenture Trustee. (Form 10-K for the year
         ended December 31, 1985, File No. 1-5924--Exhibit 10(f)(3).)

*10(b)(4)--Restructuring Commitment Agreement, dated as of June 30,
         1992, among TEP and San Carlos, jointly and severally, as Lessee,
         Philip Morris Credit Corporation, IBM Credit Financing Corporation
         and Emerson Capital Funding William J. Wade, as Owner Trustee and
         Co-Trustee, respectively, The Sumitomo Bank, Limited, New York
         Branch, as Loan Participant and United States Trust Company of New
         York, as Indenture Trustee. (Form S-4, Registration No. 33-52860--
         Exhibit 10(g)(4).)

*10(b)(5)--Lease Supplement No. 1, dated December 31, 1985, to Lease
         Agreements, dated as of December 1, 1985, between TEP and San
         Carlos, jointly and severally, as Lessee Trustee and Co-Trustee,
         respectively (document filed relates to Philip Morris Credit
         Corporation; documents relating to IBM Credit Financing Corporation
         and Emerson Financing Co. are not filed but are substantially
         similar). (Form S-4, Registration No. 33-52860--Exhibit 10(g)(5).)

*10(b)(6)--Amendment No. 1, dated as of December 15, 1992, to Lease
         Agreements, dated as of December 1, 1985, between TEP and San
         Carlos, jointly and severally, as Lessee, and Wilmington Trust
         Company and William J. Wade, as Owner Trustee and Co-Trustee,
         respectively, as Lessor.  (Form S-1, Registration No. 33-55732--
         Exhibit 10(g)(6).)

*10(b)(7)--Amendment No. 1, dated as of December 15, 1992, to Tax
         Indemnity Agreements, dated as of December 1, 1985, between Philip
         Morris Credit Corporation, IBM Credit Financing Corporation and
         Emerson Capital Funding Corp., as Owner Participants and TEP and San
         Carlos, jointly and severally, as Lessee.  (Form S-1, Registration
         No. 33-55732--Exhibit 10(g)(7).)

*10(c)(1)--Amended and Restated Participation Agreement, dated as of
         November 15, 1987, among TEP, as Lessee, Ford Motor Credit Company,
         as Owner Participant, Financial Security Assurance Inc., as Surety,
         Wilmington Trust Company and William J. Wade in their respective
         individual capacities as provided therein, but otherwise solely as
         Owner Trustee and Co-Trustee under the Trust Agreement, and Morgan
         Guaranty, in its individual capacity as provided therein, but
         Secured Party. (Form 10-K for the year ended December 31, 1987, File
         No. 1-5924--Exhibit 10(j)(1).)

*10(c)(2)--Lease Agreement, dated as of January 14, 1988, between
         Wilmington Trust Company and William J. Wade, as Owner Trust
         Agreement described therein, dated as of November 15, 1987, between
         such parties and Ford Motor Credit Company, as Lessor, and TEP, as
         Lessee. (Form 10-K for the year ended December 31, 1987, File No. 1-
         5924--Exhibit 10(j)(2).)

*10(c)(3)--Tax Indemnity Agreement, dated as of January 14, 1988,
         between TEP, as Lessee, and Ford Motor Credit Company, as Owner
         Participant, beneficiary under a Trust Agreement, dated as of
         November 15, 1987, with Wilmington Trust Company and William J.
         Wade, Owner Trustee and Co-Trustee, respectively, together as
         Lessor. (Form 10-K for the year ended December 31, 1987, File No. 1-
         5924--Exhibit 10(j)(3).)

*10(c)(4)--Loan Agreement, dated as of January 14, 1988, between the
         Pima County Authority and Wilmington Trust Company and William J.
         Wade in their respective individual capacities as expressly stated,
         but otherwise solely as Owner Trustee and Co-Trustee, respectively,
         under and pursuant to a Trust Agreement, dated as of November 15,
         1987, with Ford Motor Credit Company as Trustor and Debtor relating
         to Industrial Development Lease Obligation Refunding Revenue Bonds,
         1988 Series A (TEP's Irvington Project). (Form 10-K for the year
         ended December 31, 1987, File No. 1-5924--Exhibit 10(j)(4).)

*10(c)(5)--Indenture of Trust, dated as of January 14, 1988, between the
         Pima County Authority and Morgan Guaranty authorizing Industrial
         Development Lease Obligation Refunding Revenue Bonds, 1988 Series A
         (Tucson Electric Power Company Irvington Project). (Form 10-K for
         the year ended December 31, 1987, File No. 1-5924--Exhibit
         10(j)(5).)

*10(c)(6)--Lease Amendment No. 1, dated as of May 1, 1989, between TEP,
         Wilmington Trust Company and William J. Wade as Owner Trustee and
         Co-trustee, respectively under a Trust Agreement dated as of
         November 15, 1987 with Ford Motor Credit Company. (Form 10-K for the
         year ended December 31, 1990, File No. 1-5924--Exhibit 10(i)(6).)

*10(c)(7)--Lease Supplement, dated as of January 1, 1991, between TEP,
         Wilmington Trust Company and William J. Wade as Owner Trustee and
         Co-Trustee, respectively, under a Trust Agreement dated as of
         November 15, 1987, with Ford. (Form 10K for the year ended December
         31, 1991, File No. 1-5924--Exhibit 10(i)(8).)

*10(c)(8)--Lease Supplement, dated as of March 1, 1991, between TEP,
         Wilmington Trust Company and William J. Wade as Owner Trustee and
         Co-Trustee, respectively, under a Trust Agreement dated as of
         November 15, 1987, with Ford. (Form 10-K for the year ended December
         31, 1991, File No. 1-5924--Exhibit 10(i)(9).)

*10(c)(9)--Lease Supplement No. 4, dated as of December 1, 1991, between
         TEP, Wilmington Trust Company and William J. Wade as Owner Trustee
         and Co-Trustee, respectively, under a Trust Agreement dated as of
         November 15, 1987, with Ford. (Form 10-K for the year ended December
         31, 1991, File No. 1-5924--Exhibit 10(i)(10).)

*10(c)(10)--Supplemental Indenture No. 1, dated as of December 1, 1991,
         between the Pima County Authority and Morgan Guaranty relating to
         Industrial Lease Development Obligation Revenue Project). (Form 10-K
         for the year ended December 31, 1991, File No. 1-5924--Exhibit
         10(I)(11).)

*10(c)(11)--Restructuring Commitment Agreement, dated as of June 30,
         1992, among TEP, as Lessee, Ford Motor Credit Company, as Owner
         Participant, Wilmington Trust Company and William J. Wade, as Owner
         Trustee and Co-Trustee, respectively, and Morgan Guaranty, as
         Indenture Trustee and Refunding Trustee, relating to the
         restructuring of the Registrant's lease of Unit 4 at the Irvington
         Generating Station. (Form S-4, Registration No. 33-52860--Exhibit
         10(i)(12).)

*10(c)(12)--Amendment No. 1, dated as of December 15, 1992, to Amended
         and Restated Participation Agreement, dated as of November 15, 1987,
         among TEP, as Lessee, Ford Motor Credit Company, as Owner
         Participant, Wilmington Trust Company and William J. Wade, as Owner
         Trustee and Co-Trustee, respectively, Financial Security Assurance
         Inc., as Surety, and Morgan Guaranty, as Indenture Trustee.  (Form
         S-1, Registration No. 33-55732--Exhibit 10(h)(12).)

*10(c)(13)--Amended and Restated Lease, dated as of December 15, 1992,
         between TEP, as Lessee and Wilmington Trust Company and William J.
         Wade, as Owner Trustee and Co-Trustee, respectively, as Lessor.
         (Form S-1, Registration No. 33-55732--Exhibit 10(h)(13).)

*10(c)(14)--Amended and Restated Tax Indemnity Agreement, dated as of
         December 15, 1992, between TEP, as Lessee, and Ford Motor Credit
         Company, as Owner Participant.  (Form S-1, Registration No. 33-
         55732--Exhibit 10(h)(14).)

*10(d)-- Power Sale Agreement for the years 1990 to 2011, dated as of March
         10, 1988, between TEP and Salt River Project Agricultural
         Improvement and Power District. (Form 10-K for the year ended
         December 31, 1987, File No. 1-5924--Exhibit 10(k).)

+*10(e)(1)--Employment Agreements between TEP and currently in effect
         with Ira R. Adler, Charles E. Bayless, Thomas A. Delawder, Gary L.
         Ellerd, Steven J. Glaser, Thomas N. Hansen, Karen G. Kissinger,
         Kevin P. Larson, George W. Miraben, Dennis R. Nelson, James S.
         Pignatelli and Romano Salvatori.  (Form 10-K for the year ended
         December 31, 1996, File No. 1-5924--Exhibit 10(g)(1).)

+*10(e)(2)--Employment Agreement between TEP and Romano Salvatori.  (Form
         10-K for the year ended December 31, 1996, File No. 1-5924--Exhibit
         10(g)(2).)

*10(e)(3)--Letter, dated February 25, 1992, from Dr. Martha R. Seger to
         TEP and Capital Holding Corporation. (Form S-4, Registration No. 33-
         52860--Exhibit 10(k)(4).)

+10(e)(4)--Amendment No. 1 to Employment Agreement among Romano Salvatori,
         TEP and Nations Energy Corporation.

+10(e)(5)--Amendment No. 1 to Amended and Restated Employment Agreement
         between TEP and currently in effect with Ira R. Adler, Charles E.
         Bayless, Thomas A. Delawder, Gary L. Ellerd, Steven J. Glaser,
         Thomas N. Hansen, Karen G. Kissinger, Kevin P. Larson, George W.
         Miraben, Dennis R. Nelson, James S. Pignatelli and Romano Salvatori.

*10(f)-- Power Sale Agreement, dated April 29, 1988, for the dates of May 16,
         1990 to December 31, 1995, between TEP and Nevada Power Company.
         (Form 10-K for the year ended December 31, 1988, File No 1-5924--
         Exhibit 10(m)(2).)

*10(g)-- Participation Agreement, dated as of June 30, 1992, among TEP, as
         Lessee, various parties thereto, as Owner Wilmington Trust Company
         and William J. Wade, as Owner Trustee and Co-Trustee, respectively,
         and LaSalle National Bank, as Indenture Trustee relating to TEP's
         lease of Springerville Unit 1.  (Form S-1, Registration No. 33-
         55732--Exhibit 10(u).)

*10(h)-- Lease Agreement, dated as of December 15, 1992, between TEP, as
         Lessee and Wilmington Trust Company and William J. Wade, as Owner
         Trustee and Co-Trustee, respectively, as Lessor.  (Form S-1,
         Registration No. 33-55732--Exhibit 10(v).)

*10(i)-- Tax Indemnity Agreements, dated as of December 15, 1992, between the
         various Owner Participants parties thereto and TEP, as Lessee.
         (Form S-1, Registration No. 33-55732, Exhibit 10(w).)

*10(j)-- Restructuring Agreement, dated as of December 1, 1992, between TEP
         and Century Power Corporation.  (Form S-1, Registration No. 33-
         55732--Exhibit 10(x).)

*10(k)-- Voting Agreement, dated as of December 15, 1992, between TEP and
         Chrysler Capital Corporation (documents relating to CILCORP Lease
         Management, Inc., MWR Capital Inc., US West Financial Services, Inc.
         and Philip Morris Capital Corporation are not filed but are
         substantially similar).  (Form S-1, Registration No. 33-55732--
         Exhibit 10(y).)

*10(l)(1)--Wholesale Power Supply Agreement between TEP and Navajo
         Tribal Utility Authority dated January 5, 1993.  (Form 10-K for the
         year ended December 31, 1992, File No. 1-5924--Exhibit 10(t).)

*10(l)(2)--Amended and Restated Wholesale Power Supply Agreement between
         TEP and Navajo Tribal Utility Authority, dated June 25, 1997.  (Form
         10-Q for the quarter ended June 30, 1997, File No. 1-5924--Exhibit
         10.)

10(m) -- Credit Agreement dated as of December 30, 1997, among TEP, Toronto
         Dominion (Texas), Inc., as Administrative Agent, The Bank of New
         York, as Syndication Agent, Societe Generale, as Documentation
         Agent, the lenders party hereto, and the issuing banks party hereto.

+*10(n)-- 1994 Omnibus Stock and Incentive Plan of UniSource Energy.  (Form S-
         8 dated January 6, 1998, File No. 333-43767.)

+*10(o)-- 1994 Outside Director Stock Option Plan of UniSource Energy.  (Form
         S-8 dated January 6, 1998, File No. 333-43765.)

+*10(p)-- Management and Directors Deferred Compensation Plan of UniSource
         Energy.  (Form S-8 dated January 6, 1998, File No. 333-43769.)

11    -- Statement re computation of per share earnings--UniSource Energy.

12    -- Computation of Ratio of Earnings to Fixed Charges--TEP.

16    -- Letter re change in certifying accountant.

21    -- Subsidiaries of the Registrants.

23    -- Consents of experts and counsel.

24    -- Power of Attorney.

27(a) -- Financial Data Schedule--UniSource Energy.

27(b) -- Financial Data Schedule--TEP.

(*)Previously filed as indicated and incorporated herein by reference.
(+)Management contracts or compensatory plans or arrangements required to be
  filed as exhibits to this Form 10-K by item 601(b)(10)(iii) of Regulation
  S-K.


			  

			  

Exhibit 16



March 2, 1998

Securities and Exchange Commission
Mail Stop 9-5
450 5th Street, N.W.
Washington, D.C.  20549

Dear Sirs/Madams:

We have read and agree with the comments in Item 9 of Form
10-K of UniSource Energy Corporation and Tucson Electric
Power Company dated March 2, 1998.

Yours Truly,

DELOITTE & TOUCHE LLP

Tucson, Arizona




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