EXHIBIT 12.1 PACIFIC GAS AND ELECTRIC COMPANY COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES - ----------------------------------------------------------------------------- Year ended December 31, ------------------------------------------- (dollars in millions) 1999 1998 1997 1996 1995 - ----------------------------------------------------------------------------- Earnings: $ 788 $ 729 $ 768 $ 755 $1,339 Net income Adjustments for minority interests in losses of less than 100% owned affiliates and the Company's equity in undistributed losses (income) of less than 50% owned affiliates - - - 3 4 Income tax expenses 648 629 609 555 895 Net fixed charges 637 673 628 683 716 ------ ------ ------ ------ ------ Total Earnings $2,073 $2,031 $2,005 $1,996 $2,954 ====== ====== ====== ====== ====== Fixed Charges: Interest on long- term debt, net $ 523 $ 585 $ 485 $ 574 $ 616 Interest on short- term borrowings 81 50 101 75 83 Interest on capital leases 3 2 2 3 3 AFUDC debt 7 12 17 8 11 Earnings required to cover the preferred stock dividend and preferred security distribution requirements of majority owned trust 24 24 24 24 3 ------ ------ ------ ------ ------ Total Fixed Charges $ 638 $ 673 $ 629 $ 684 $ 716 ====== ====== ====== ====== ====== Ratios of Earnings to Fixed Charges 3.25 3.02 3.19 2.92 4.13 - ----------------------------------------------------------------------------- Note: For the purpose of computing Pacific Gas and Electric Company's ratios of earnings to fixed charges, "earnings" represent net income adjusted for the minority interest in losses of less than 100% owned affiliates, cash distributions from and equity in undistributed income or loss of Pacific Gas and Electric Company's less than 50% owned affiliates, income taxes and fixed charges (excluding capitalized interest). "Fixed charges" include interest on long-term debt and short-term borrowings (including a representative portion of rental expense), amortization of bond premium, discount and expense, interest of subordinated debentures held by trust, interest in capital leases, and earnings required to cover the preferred stock dividend requirements.