Exhibit 12 TXU CORP. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES, AND RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERENCE DIVIDENDS Year Ended December 31, ------------------------------------------------------------------- 2002 2001 2000 1999 1998 ---- ---- ---- ---- ---- Millions of Dollars, Except Ratios EARNINGS: Income (loss) from continuing operations $ 175 $ 639 $ 666 $ 686 $ 600 Add: Total federal income taxes 94 273 278 314 407 Fixed charges (see detail below) 958 1,045 1,088 1,084 1,035 Preferred dividends of subsidiaries 13 14 14 14 16 ------ ------ ------ ------ ------ Total earnings $1,240 $1,971 $2,046 $2,098 $2,058 ====== ====== ====== ====== ====== FIXED CHARGES: Interest expense $ 843 $ 873 $ 911 $ 924 $ 908 Rentals representative of the interest factor 75 71 68 64 53 Distributions on preferred trust securities of subsidiaries* 40 101 109 96 74 ------ ------ ------ ------ ------ Fixed charges deducted from earnings 958 1,045 1,088 1,084 1,035 Preferred dividends of subsidiaries (pretax)** 20 20 20 20 27 ------ ------ ------ ------ ------ Total fixed charges 978 1,065 1,108 1,104 1,062 ------ ------ ------ ------ ------ Preference dividends of registrant (pretax) ** 34 31 17 - - ------- ------ ------ ------ ------ Fixed charges and preference dividends $1,012 $1,096 $1,125 $1,104 $1,062 ====== ====== ====== ====== ====== RATIO OF EARNINGS TO FIXED CHARGES 1.27 1.85 1.85 1.90 1.94 ==== ==== ==== ==== ==== RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERENCE DIVIDENDS 1.23 1.80 1.82 1.90 1.94 ==== ==== ==== ==== ==== * Distributions on preferred trust securities are deductible for tax purposes. ** Preferred/preference dividends multiplied by the ratio of pre-tax income to net income.