UniSource Energy Corporation
Computation of Ratio of Earnings to Fixed Charges
 9 Months Ended
    
    
    12 Months Ended
    
    
    12 Months EndedSeptember 30,
    
    
    September 30,
    
    
    Dec. 31,
    
    
    Dec. 31,
    
    
    Dec. 31,
    
    
    Dec. 31,
    
    
    Dec. 31,2009
    
    
    2009
    
    
    2008
    
    
    2007
    
    
    2006
    
    
    2005
    
    
    2004-Thousands of Dollars-Fixed Charges:Interest on Long-Term Debt
    
    $
    43,680
    
    
    $
    60,305
    
    
    $
    70,227
    
    
    $
    73,095
    
    
    $
    75,039
    
    
    $
    76,762
    
    
    $
    80,968Other Interest (1)
    
    
    2,411
    
    
    
    2,873
    
    
    
    1,837
    
    
    
    5,480
    
    
    
    7,922
    
    
    
    3,153
    
    
    
    1,947Interest on Capital Lease
Obligations
    
    
    40,125
    
    
    
    54,427
    
    
    
    57,272
    
    
    
    64,499
    
    
    
    72,586
    
    
    
    79,098
    
    
    
    85,912Estimated Interest Portion of
Rental Expense
    
    
    86
    
    
    
    133
    
    
    
    188
    
    
    
    258
    
    
    
    326
    
    
    
    391
    
    
    
    453Total Fixed Charges
    
    $
    86,302
    
    
    $
    117,738
    
    
    $
    129,524
    
    
    $
    143,332
    
    
    $
    155,873
    
    
    $
    159,404
    
    
    $
    169,280Net Income
    
    $
    93,839
    
    
    $
    116,767
    
    
    $
    14,021
    
    
    $
    58,373
    
    
    $
    67,447
    
    
    $
    46,144
    
    
    $
    45,919Less:Discontinued Operations  Net
of Tax
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    (1,796
    )
    
    
    (5,483
    )
    
    
    (5,063
    )Accounting Change  Net of Tax
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    (626
    )
    
    
    Net Income from Continuing
Operations
    
    
    93,839
    
    
    
    116,767
    
    
    
    14,021
    
    
    
    58,373
    
    
    
    69,243
    
    
    
    52,253
    
    
    
    50,982Add (Deduct):(Income) Losses from Equity
Investees (2)
    
    
    (2,471
    )
    
    
    (2,073
    )
    
    
    713
    
    
    
    340
    
    
    
    (210
    )
    
    
    (2,113
    )
    
    
    (7,121
    )Income Taxes
    
    
    58,110
    
    
    
    76,191
    
    
    
    16,976
    
    
    
    39,079
    
    
    
    43,936
    
    
    
    37,623
    
    
    
    37,186Total Fixed Charges
    
    
    86,302
    
    
    
    117,738
    
    
    
    129,524
    
    
    
    143,332
    
    
    
    155,873
    
    
    
    159,404
    
    
    
    169,280Total Earnings before Taxes
and Fixed Charges
    
    $
    235,780
    
    
    $
    308,623
    
    
    $
    161,234
    
    
    $
    241,124
    
    
    $
    268,842
    
    
    $
    247,167
    
    
    $
    250,327Ratio of Earnings to Fixed
Charges
    
    
    2.732
    
    
    
    2.621
    
    
    
    1.245
    
    
    
    1.682
    
    
    
    1.725
    
    
    
    1.551
    
    
    
    1.479
 (1)
    
    Excludes recognition of Allowance for Borrowed Funds Used During Construction.(2)
    
    Includes Equity in Investment in Lease Equity.