<ARTICLE> UT
<LEGEND>
                                                                      Exhibit 27

                             UNION ELECTRIC COMPANY
                             10-Q SEPTEMBER 30, 2000
                           FINANCIAL DATA SCHEDULE UT
          PUBLIC UTILITY COMPANIES AND PUBLIC UTILITY HOLDING COMPANIES
                  APPENDIX E TO ITEM 601 (C) OF REGULATION S-K
                             (Thousands of Dollars)


</LEGEND>



                                                        
<PERIOD-TYPE>                                                    9-MOS
<FISCAL-YEAR-END>                                          DEC-31-2000
<PERIOD-END>                                               SEP-30-2000
<BOOK-VALUE>                                                  PER-BOOK
<TOTAL-NET-UTILITY-PLANT>                                    5,353,750
<OTHER-PROPERTY-AND-INVEST>                                    194,294
<TOTAL-CURRENT-ASSETS>                                         840,625
<TOTAL-DEFERRED-CHARGES>                                        61,837
<OTHER-ASSETS>                                                 749,894
<TOTAL-ASSETS>                                               7,200,400
<COMMON>                                                       510,619
<CAPITAL-SURPLUS-PAID-IN>                                      701,896
<RETAINED-EARNINGS>                                          1,337,505
<TOTAL-COMMON-STOCKHOLDERS-EQ>                               2,550,020
<PREFERRED-MANDATORY>                                                0
<PREFERRED>                                                    155,197
<LONG-TERM-DEBT-NET>                                         1,626,770
<SHORT-TERM-NOTES>                                                   0
<LONG-TERM-NOTES-PAYABLE>                                            0
<COMMERCIAL-PAPER-OBLIGATIONS>                                       0
<LONG-TERM-DEBT-CURRENT-PORT>                                        0
<PREFERRED-STOCK-CURRENT>                                            0
<CAPITAL-LEASE-OBLIGATIONS>                                    103,075
<LEASES-CURRENT>                                                12,653
<OTHER-ITEMS-CAPITAL-AND-LIAB>                               2,752,685
<TOT-CAPITALIZATION-AND-LIAB>                                7,200,400
<GROSS-OPERATING-REVENUE>                                    2,117,346
<INCOME-TAX-EXPENSE>                                           220,473
<OTHER-OPERATING-EXPENSES>                                   1,488,960
<TOTAL-OPERATING-EXPENSES>                                   1,709,433
<OPERATING-INCOME-LOSS>                                        407,913
<OTHER-INCOME-NET>                                              14,095
<INCOME-BEFORE-INTEREST-EXPEN>                                 422,008
<TOTAL-INTEREST-EXPENSE>                                        91,833
<NET-INCOME>                                                   330,175
<PREFERRED-STOCK-DIVIDENDS>                                      6,613
<EARNINGS-AVAILABLE-FOR-COMM>                                  323,562
<COMMON-STOCK-DIVIDENDS>                                       207,224
<TOTAL-INTEREST-ON-BONDS>                                            0  <F1>
<CASH-FLOW-OPERATIONS>                                         652,429
<EPS-BASIC>                                                       0.00  <F2>
<EPS-DILUTED>                                                     0.00  <F2>

<FN>
<F1> Required in fiscal year-end only.
<F2> Information not normally not disclosed in financial statements and notes.
</FN>