EXHIBIT 12-1 PECO ENERGY COMPANY AND SUBSIDIARY COMPANIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES SEC METHOD ($000) 9 MONTHS ENDED 09/30/97 NET INCOME $393,884 ADD BACK: - - INCOME TAXES: OPERATING INCOME 296,019 NON-OPERATING INCOME 23,274 -------- NET TAXES 319,293 - - FIXED CHARGES: INTEREST APPLICABLE TO DEBT 269,885 ANNUAL RENTALS 6,439 -------- TOTAL FIXED CHARGES 276,324 ADJUSTED EARNINGS INCLUDING AFUDC $989,501 ======== RATIO OF EARNINGS TO FIXED CHARGES 3.58 ========