Exhibit 12(a)

                                                    TUCSON ELECTRIC POWER COMPANY
                                          COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES




                                                                12 Months Ended
                                            ----------------------------------------------------------
                                              Dec. 31,   Dec. 31,    Dec. 31,   Dec. 31,    Dec. 31,
                                                2004       2003        2002       2001        2000
- ------------------------------------------------------------------------------------------------------
                                                            - Thousands of Dollars -
                                                                                
FIXED CHARGES:
  Interest on Long-Term Debt                  $ 71,743    $ 76,585    $ 65,620   $ 68,678    $ 75,076
  Other Interest (1)                             1,414       1,820         273        441         211
  Interest on Capital Lease Obligations         85,869      84,053      87,783     90,506      92,815
- ------------------------------------------------------------------------------------------------------
TOTAL FIXED CHARGES                            159,026     162,458     153,676    159,625     168,102

NET INCOME                                      46,127     128,913      55,390     77,778      52,762

LESS:
   Extraordinary Income & Accounting Change -
       Net of Tax                                    -      67,471           -        470           -
- ------------------------------------------------------------------------------------------------------
NET INCOME FROM CONTINUING OPERATIONS           46,127      61,442      55,390     77,308      52,762

ADD (DEDUCT):
  (Income) Losses from Equity Investees (2)       (131)        (76)         17        700       1,543
  Income Taxes                                  34,815      21,090      36,434     57,545      27,610
  Total Fixed Charges                          159,026     162,458     153,676    159,625     168,102
- ------------------------------------------------------------------------------------------------------

TOTAL EARNINGS BEFORE TAXES
AND FIXED CHARGES                            $ 239,837   $ 244,914   $ 245,517  $ 295,178   $ 250,017
======================================================================================================

RATIO OF EARNINGS TO FIXED CHARGES               1.508       1.508       1.598      1.849       1.487

<FN>
(1) Excludes recognition of Allowance for Borrowed Funds Used During Construction.
(2) Inncom International, Inc. and TruePricing, Inc. (income) losses.
</FN>