<ARTICLE> UT
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
STATEMENT OF INCOME, STATEMENT OF CASH FLOWS, BALANCE SHEET, AND STATEMENT OF
COMMON STOCKHOLDER'S EQUITY, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO
SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK> 0000201533
<NAME> CONSUMERS ENERGY COMPANY
<MULTIPLIER> 1,000,000

                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               DEC-31-1999
<BOOK-VALUE>                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                        4,004
<OTHER-PROPERTY-AND-INVEST>                        645
<TOTAL-CURRENT-ASSETS>                             699
<TOTAL-DEFERRED-CHARGES>                         1,822
<OTHER-ASSETS>                                       0
<TOTAL-ASSETS>                                   7,170
<COMMON>                                           841
<CAPITAL-SURPLUS-PAID-IN>                          645
<RETAINED-EARNINGS>                                485
<TOTAL-COMMON-STOCKHOLDERS-EQ>                   1,971
<PREFERRED-MANDATORY>                              395
<PREFERRED>                                         44
<LONG-TERM-DEBT-NET>                               805
<SHORT-TERM-NOTES>                                 214
<LONG-TERM-NOTES-PAYABLE>                        1,201
<COMMERCIAL-PAPER-OBLIGATIONS>                       0
<LONG-TERM-DEBT-CURRENT-PORT>                       55
<PREFERRED-STOCK-CURRENT>                            0
<CAPITAL-LEASE-OBLIGATIONS>                         85
<LEASES-CURRENT>                                    35
<OTHER-ITEMS-CAPITAL-AND-LIAB>                   2,365
<TOT-CAPITALIZATION-AND-LIAB>                    7,170
<GROSS-OPERATING-REVENUE>                        3,874
<INCOME-TAX-EXPENSE>                               172
<OTHER-OPERATING-EXPENSES>                       3,199
<TOTAL-OPERATING-EXPENSES>                       3,371
<OPERATING-INCOME-LOSS>                            503
<OTHER-INCOME-NET>                                  18
<INCOME-BEFORE-INTEREST-EXPEN>                     521
<TOTAL-INTEREST-EXPENSE>                           181
<NET-INCOME>                                       340
<PREFERRED-STOCK-DIVIDENDS>                         27
<EARNINGS-AVAILABLE-FOR-COMM>                      313
<COMMON-STOCK-DIVIDENDS>                           262
<TOTAL-INTEREST-ON-BONDS>                           62
<CASH-FLOW-OPERATIONS>                             781
<EPS-BASIC>                                          0
<EPS-DILUTED>                                        0