EXHIBIT 12(b) HAWAIIAN ELECTRIC COMPANY, INC. COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS NINE MONTHS ENDED SEPTEMBER 30, YEARS ENDED DECEMBER 31, ------------------- ------------------------------------------------------- 1998 1997 1997 1996 1995 1994 1993 ---- ---- ---- ---- ---- ---- ---- (DOLLARS IN THOUSANDS) FIXED CHARGES Total interest charges .................... $ 36,784 $ 36,551 $ 48,778 $ 47,451 $ 44,377 $ 37,340 $ 35,287 Interest component of rentals ............. 552 577 757 690 672 808 970 Pretax preferred stock dividend requirements ............................. 7,208 7,525 10,007 10,681 11,216 11,700 10,648 Preferred securities distributions of trust subsidiary................................ 3,019 2,046 3,052 0 0 0 0 -------- -------- -------- -------- -------- -------- -------- TOTAL FIXED CHARGES ....................... $ 47,563 $ 46,699 $ 62,594 $ 58,822 $ 56,265 $ 49,848 $ 46,905 ======== ======== ======== ======== ======== ======== ======== EARNINGS Net income for common stock ............... $ 62,927 $ 57,754 $ 78,189 $ 81,348 $ 72,897 $ 61,645 $ 51,705 Fixed charges, as shown ................... 47,563 46,699 62,594 58,822 56,265 49,848 46,905 Income taxes (see note below) ............. 42,213 38,824 52,535 55,888 50,198 43,588 36,897 Allowance for borrowed funds used during construction ...................... (5,145) (4,658) (6,190) (5,862) (5,112) (4,043) (3,869) -------- -------- -------- -------- -------- -------- -------- EARNINGS AVAILABLE FOR FIXED CHARGES AND PREFERRED STOCK DIVIDENDS ............ $147,558 $138,619 $187,128 $190,196 $174,248 $151,038 $131,638 ======== ======== ======== ======== ======== ======== ======== RATIO OF EARNINGS TO FIXED CHARGES AND PREFERRED STOCK DIVIDENDS ............ 3.10 2.97 2.99 3.23 3.10 3.03 2.81 ======== ======== ======== ======== ======== ======== ======== NOTE: Income taxes is comprised of the following Income tax expense relating to operating income for regulatory purposes ................................ $ 42,253 $ 38,848 $ 52,795 $ 56,170 $ 50,719 $ 43,820 $ 37,007 Income tax benefit relating to nonoperating loss ....................... (40) (24) (260) (282) (521) (232) (110) -------- -------- -------- -------- -------- -------- -------- $ 42,213 $ 38,824 $ 52,535 $ 55,888 $ 50,198 $ 43,588 $ 36,897 ======== ======== ======== ======== ======== ======== ========