Exhibit 12a
UNISOURCE ENERGY CORPORATION
Computation of Ratio of Earnings to Fixed Charges
3 Months 9 Months
Ended Ended 12 Months Ended
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Sept. 30 Sept. 30 Dec. 31, Dec. 31, Dec. 31, Dec. 31, Dec. 31,
2005 2005 2004 2003 2002 2001 2000
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- Thousands of Dollars -
FIXED CHARGES:
Interest on Long-Term Debt $ 18,002 $ 58,098 $ 82,807 $ 80,844 $ 65,620 $ 68,678 $ 75,076
Other Interest (1) 833 2,502 2,098 3,709 2,123 1,287 219
Interest on Capital Lease Obligations 20,078 59,225 85,912 84,080 87,801 90,559 92,869
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TOTAL FIXED CHARGES 38,913 119,825 170,817 168,633 155,544 160,524 168,164
NET INCOME 18,397 24,082 45,919 113,941 34,928 63,839 43,484
LESS:
Extraordinary Income & Accounting Change -
Net of Tax - - - 67,471 - 470 -
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NET INCOME FROM CONTINUING OPERATIONS 18,397 24,082 45,919 46,470 34,928 63,369 43,484
ADD (DEDUCT):
(Income) Losses from Equity Investees (452) 278 (7,121) 3,051 3,047 10,748 3,335
Income Taxes 10,936 16,588 33,946 12,082 17,962 49,109 16,199
Total Fixed Charges 38,913 119,825 170,817 168,633 155,544 160,524 168,164
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TOTAL EARNINGS BEFORE TAXES
AND FIXED CHARGES $ 67,794 $160,773 $243,561 $230,236 $211,481 $283,750 $231,182
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RATIO OF EARNINGS TO FIXED CHARGES 1.742 1.342 1.426 1.365 1.360 1.768 1.375
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(1) Excludes recognition of Allowance for Borrowed Funds Used During Construction.
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