<ARTICLE>                                                              UT
<LEGEND>       THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
               EXTRACTED FROM THE UNAUDITED FINANCIAL STATEMENTS OF
               WISCONSIN ENERGY CORPORATION FOR THE NINE MONTHS ENDED
               SEPTEMBER 30, 1999 AND IS QUALIFIED IN ITS ENTIRETY BY
               REFERENCE TO SUCH FINANCIAL STATEMENTS.  THIS SCHEDULE
               REFLECTS RECLASSIFICATION OF AMOUNTS TO CONFORM TO
               THE COMPANY'S CURRENT FINANCIAL STATEMENT PRESENTATION.
<MULTIPLIER>                                                        1,000

                                                           
<CURRENCY>                                                    U.S.DOLLARS
<FISCAL-YEAR-END>                                             DEC-31-1999
<PERIOD-START>                                                JAN-01-1999
<PERIOD-END>                                                  SEP-30-1999
<PERIOD-TYPE>                                                       9-MOS
<EXCHANGE-RATE>                                                         1
<BOOK-VALUE>                                                     PER-BOOK
<TOTAL-NET-UTILITY-PLANT> <F1>                                  3,307,900
<OTHER-PROPERTY-AND-INVEST> <F2>                                1,448,800
<TOTAL-CURRENT-ASSETS>                                            639,800
<TOTAL-DEFERRED-CHARGES>                                                0
<OTHER-ASSETS>                                                    535,800
<TOTAL-ASSETS>                                                  5,932,300
<COMMON>                                                            1,200
<CAPITAL-SURPLUS-PAID-IN>                                         813,200
<RETAINED-EARNINGS> <F3>                                        1,176,400
<TOTAL-COMMON-STOCKHOLDERS-EQ>                                  1,990,800
<PREFERRED-MANDATORY>                                                   0
<PREFERRED>                                                        30,400
<LONG-TERM-DEBT-NET>                                            1,174,400
<SHORT-TERM-NOTES>                                                 50,700
<LONG-TERM-NOTES-PAYABLE>                                         635,700
<COMMERCIAL-PAPER-OBLIGATIONS>                                    333,400
<LONG-TERM-DEBT-CURRENT-PORT>                                      54,900
<PREFERRED-STOCK-CURRENT>                                               0
<CAPITAL-LEASE-OBLIGATIONS>                                       178,900
<LEASES-CURRENT>                                                   26,300
<OTHER-ITEMS-CAPITAL-AND-LIAB> <F4>                             1,456,800
<TOT-CAPITALIZATION-AND-LIAB>                                   5,932,300
<GROSS-OPERATING-REVENUE>                                       1,687,000
<INCOME-TAX-EXPENSE>                                               92,100
<OTHER-OPERATING-EXPENSES>                                      1,332,300
<TOTAL-OPERATING-EXPENSES> <F5>                                 1,332,300
<OPERATING-INCOME-LOSS> <F5>                                      354,700
<OTHER-INCOME-NET>                                                 17,400
<INCOME-BEFORE-INTEREST-EXPEN> <F7>                               372,100
<TOTAL-INTEREST-EXPENSE> <F6>                                     108,700
<NET-INCOME> <F7>                                                 171,300
<PREFERRED-STOCK-DIVIDENDS>                                             0
<EARNINGS-AVAILABLE-FOR-COMM>                                     171,300
<COMMON-STOCK-DIVIDENDS>                                          136,300
<TOTAL-INTEREST-ON-BONDS>                                               0
<CASH-FLOW-OPERATIONS>                                            401,700
<EPS-BASIC>                                                          1.47
<EPS-DILUTED>                                                        1.47
<FN>
<F1>  TOTAL NET UTILITY PLANT IS $3,858,900 OF NET PROPERTY,
      PLANT AND EQUIPMENT LESS $551,000 OF NET NON-UTILITY PROPERTY.
<F2>  OTHER PROPERTY AND INVESTMENTS IS $897,800 OF INVESTMENTS
      PLUS $551,000 OF NET NON-UTILITY PROPERTY.
<F3>  RETAINED EARNINGS IS NET OF $2,600 OF UNEARNED COMPENSATION
      FOR RESTRICTED STOCK AWARDS.
<F4>  OTHER ITEMS - CAPITAL AND LIABILITIES INCLUDES $200,000
      OF COMPANY-OBLIGATED, MANDATORILY REDEEMABLE PREFERRED
      SECURITIES OF SUBSIDIARY TRUST HOLDING SOLELY DEBENTURES
      OF THE COMPANY.
<F5>  TOTAL OPERATING EXPENSES AND OPERATING INCOME OR LOSS
      EXCLUDES INCOME TAXES OF $92,100.
<F6>  TOTAL INTEREST EXPENSE INCLUDES $7,100 OF DISTRIBUTIONS ON
      PREFERRED SECURITIES OF SUBSIDIARY TRUST AND $900 OF
      PREFERRED DIVIDEND REQUIREMENTS OF SUBSIDIARY.
<F7>  INCOME BEFORE INTEREST EXPENSE AND NET INCOME IS AFTER
      INCOME TAXES OF $92,100.
SEE FINANCIAL STATEMENTS AND NOTES IN THE ACCOMPANYING 10-Q.
</FN>