1 EXHIBIT 12-27 THE DETROIT EDISON COMPANY COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES Nine Year Ended December 31 Months -------------------------------------------- Ended 9/30/00 1999 1998 1997 ------- ---- ---- ---- (Millions, except for ratio) Net income............................................. $ 264 $ 434 $ 418 $ 417 ----------- ----------- ----------- ----------- Taxes based on income: Income taxes........................................ 118 211 260 288 Municipal and state................................. 2 3 3 4 ---------- ----------- ----------- ----------- Total taxes based on income....................... 120 214 263 292 ---------- ----------- ----------- ----------- Fixed charges: Interest expense.................................... 209 284 278 282 Allowance for funds used during construction...................................... - 4 - - Interest factor of rents............................ 26 34 34 34 ---------- ----------- ----------- ----------- Total fixed charges............................... 235 322 312 316 ========== =========== =========== =========== Earnings before taxes based on income and fixed charges................................... $ 619 $ 970 $ 933 $ 1,025 =========== =========== =========== =========== Ratio of earnings to fixed charges 2.63 3.01 3.18 3.24