UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION

                            Washington, D.C. 20549

                            _______________________

                                   FORM 8-K


                                CURRENT REPORT


                      Pursuant to Section 13 or 15(d) of
                      the Securities Exchange Act of 1934

                            _______________________


                 Date of Report
                 (Date of earliest
                 event reported):   July 18, 2002


                         Alliant Energy Corporation
            ------------------------------------------------------
            (Exact name of registrant as specified in its charter)


   Wisconsin                    1-9894                    39-1380265
---------------            ----------------           ----------------
(State or other            (Commission File             (IRS Employer
jurisdiction of                Number)               Identification No.)
incorporation)


                4902 N. Biltmore Lane, Madison, Wisconsin 53718
         ------------------------------------------------------------
         (Address of principal executive offices, including zip code)


                                (608) 458-3311
                        -------------------------------
                        (Registrant's telephone number)




Item 5.    Other Events.
------     ------------

           A copy of Alliant Energy  Corporation's press release dated July 18,
2002, is filed as Exhibit 99.1 and is incorporated by reference herein.


Item 7.    Financial Statements and Exhibits.
------     ---------------------------------

           (a)   Not applicable.

           (b)   Not applicable.

           (c)   Exhibits.  The following exhibit is being filed herewith:
                 --------

                 (99.1)  Alliant Energy  Corporation  Press Release dated July
                         18, 2002.

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                                  SIGNATURES
                                  ----------

           Pursuant  to the  requirements  of the  Securities  Exchange  Act of
1934,  the  registrant  has duly  caused this report to be signed on its behalf
by the undersigned hereunto duly authorized.

                               ALLIANT ENERGY CORPORATION



Date:  July 18, 2002           By: /s/ John E. Kratchmer
                                   --------------------------------
                                       John E. Kratchmer
                                       Corporate Controller and Chief
                                       Accounting Officer



                                       3



                          ALLIANT ENERGY CORPORATION

                  Exhibit Index to Current Report on Form 8-K
                              Dated July 18, 2002


Exhibit
Number
------

(99.1)     Alliant Energy Corporation Press Release dated July 18, 2002.



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