Exhibit 12

                                  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,
                                              2001        2000        1999        1998       1997
- ---------------------------------------------------------------------------------------------------
                                                              - Thousands of dollars -
                                                                         
Fixed Charges:
  Interest on Long-Term Debt                 $61,218    $66,377    $66,836    $72,672    $66,247
  Other Interest (1)                           8,058      9,067     13,081     13,207      9,640
  Interest on Capital Lease Obligations (2)   90,348     92,658     82,414     81,823     83,019
- ---------------------------------------------------------------------------------------------------
Total Fixed Charges                          159,624    168,102    162,331    167,702    158,906


Net Income                                    75,284     51,169     73,475     41,676     83,572


Less:
  Extraordinary Income and Accounting
    Change - Net of Tax                          470          -     22,597          -          -
- ---------------------------------------------------------------------------------------------------
Net Income from Continuing Operations         74,814     51,169     50,878     41,676     83,572


Add (Deduct):
  Losses from Equity Investees                   700      1,543          -          -           -
  Income Taxes                                55,910     26,566     22,350     17,578     (22,104)
  Total Fixed Charges                        159,624    168,102    162,331    167,702     158,906
- ---------------------------------------------------------------------------------------------------

Total Earnings before Taxes and
  Fixed Charges                             $291,048   $247,380   $235,559   $226,956    $220,374
===================================================================================================

Ratio of Earnings to Fixed Charges             1.823      1.472      1.451      1.353       1.387

<FN>
 (1)  Excludes recognition of Allowance for Borrowed Funds Used during Construction.

 (2)  Amounts have been restated for years ended 2001 - 2000 to conform to current year's presentatio


</FN>