SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


*********************************************
         In the Matter of
     Alliant Energy Corporation, et al.               CERTIFICATE
                                                      PURSUANT TO
          File No. 70-9891                              RULE 24

    (Public Utility Holding Company Act
               of 1935)
*********************************************






     This Certificate of Notification  (the  "Certificate")  is filed by Alliant
Energy Corporation  ("Alliant  Energy"),  a registered holding company under the
Public  Utility  Holding  Company Act of 1935,  as amended (the "Act"),  and its
wholly-owned  subsidiary,  Alliant  Energy  Resources,  Inc.  ("Resources"),  in
connection    with    the    transactions    proposed    in   the    Form    U-1
Application-Declaration (the "Application-Declaration"),  as amended, of Alliant
Energy and Resources (collectively, the "Applicants") in File No. 70-9891. These
transactions were authorized by order of the Securities and Exchange  Commission
(the  "Commission")  dated  October  3, 2001 (the  "Order"),  as  amended. 

     This  Certificate  is for the period  covering July 1, 2004 - September 30,
2004 (hereinafter referred to as the "period").

     The Applicants  hereby certify the matters set forth below pursuant to Rule
24 of the rules under the Act:

1.   A computation in accordance with rule 53(a) setting forth Alliant  Energy's
     "aggregate  investment" in all EWGs and FUCOs, its  "consolidated  retained
     earnings" and a  calculation  of the amount  remaining  under the Requested
     EWG/FUCO Investment Authority.
 
     ANSWER:

     See attached Exhibit A


2.   A chart showing Alliant Energy's  aggregate  investment in each EWG or FUCO
     compared to the Requested EWG/FUCO Investment  Authority.  The chart should
     also  identify  any new EWG or FUCO,  compared  to the  Requested  EWG/FUCO
     Investment Authority,  in which Alliant Energy has invested or committed to
     invest during the preceding quarter.
        
     ANSWER:
        
     See attached Exhibit A


                                      -1-

                                     
        
        
3.   The consolidated  capitalization ratio of Alliant Energy, with consolidated
     debt to  include  all  short-term  debt and all  other  system  debt,  both
     recourse and nonrecourse, including debt of EWGs and FUCOs.
        
     ANSWER:
        
     See attached Exhibit B
        
        
4.   The market-to-book ratio of Alliant Energy's common stock.

     ANSWER:
        
     See attached Exhibit C


5.   Analysis of the growth in  consolidated  retained  earnings that segregates
     total  earnings  growth of EWGs and FUCOs from that  attributable  to other
     subsidiaries of Alliant Energy.

     ANSWER:

     See attached Exhibit D


6.   A statement of revenues and net income for each EWG and FUCO for the twelve
     months ending as of the end of that quarter.

     ANSWER:

     See attached Exhibit E

7.   The sales of any common stock or preferred securities by Alliant Energy and
     the purchase  price per share and the market price per share at the date of
     the agreement of sale.

     ANSWER:

     There were  2,085,185  shares of common  stock  issued  under a  continuous
     equity offering program at the average price of $25.7567.

                                      -2-



8.   The total  number  of  shares of  Alliant  Energy  common  stock  issued or
     issuable under options granted during the quarter under employment  benefit
     plans and dividend  reinvestment plans including any employee benefit plans
     or dividend reinvestment plans later adopted.

     ANSWER:
        
     See attached Exhibit F


9.   If a guaranty is issued during the quarter, the name of the guarantor,  the
     name of the  beneficiary of the guaranty and the amount,  terms and purpose
     of the guaranty.

     ANSWER:

     See attached Exhibits G


10.  The amount and terms of any Alliant Energy  indebtedness  issued during the
     quarter.

     ANSWER:
       
     None


11.  The  amount  and  terms of any  financings  consummated  by any  Nonutility
     Subsidiary that is not exempt under rule 52.

     ANSWER:
        
     None
         
        
12.  The notional  amount and  principal  terms of any  Interest  Rate Hedges or
     Anticipatory Hedges entered into during the quarter and the identity of the
     other parties to the transaction.

     ANSWER:

     None
        
        
13.  The name, parent company and amount invested in any intermediate subsidiary
     or financing, subsidiary during the quarter and the amount and terms of any
     securities issued by those subsidiaries during the quarter.

                                      -3-


     ANSWER:

     See attached Exhibit H


14.  A list of U-6B-2  forms  filed  with the  Commission  during  the  quarter,
     including the name of filing entity and the date of the filing.
        
     ANSWER:
        
     Alliant Energy Corporate  Services,  Inc. filed a U-6B-2 on August 9, 2004.
     Wisconsin Power and Light Company, Inc. filed a U-6B-2 on August 9, 2004.
        

15.  Consolidated  balance  sheets  as of the end of the  quarter  and  separate
     balance  sheets as of the end of the  quarter for each  company,  including
     Alliant Energy, that has engaged in jurisdictional  financing  transactions
     during the quarter.

     ANSWER:

     Incorporated  by  reference to Alliant  Energy's  Form 10-Q for the quarter
     ended September 30, 2004.


16.  A table  showing,  as of the end of the quarter,  the dollar and percentage
     components  of the capital  structure of Alliant  Energy on a  consolidated
     basis and of each Utility Subsidiary.

     ANSWER:

     See attached Exhibit I


17.  A retained earnings analysis of Alliant Energy on a consolidated  basis and
     of each Utility Subsidiary detailing gross earnings, goodwill amortization,
     dividends  paid  out of each  capital  account  and the  resulting  capital
     account balances at the end of the quarter.

     ANSWER:

     See attached Exhibit J


18.  Registration statements filed under the Securities Act of 1933 with respect
     to  securities  that  are  subject  of this  Application  will be  filed or
     incorporated by reference as exhibits to the next  certificate  filed under
     rule 24.

                                      -4-


     ANSWER:

     None


                               S I G N A T U R E

     Pursuant to the  requirements  of the Public Utility Holding Company Act of
1935, as amended, the undersigned companies have duly caused this Certificate to
be signed on their behalf by the undersigned thereunto duly authorized.
               
                                    ALLIANT ENERGY CORPORATION 

                                  
                                 
                           By:      /s/ Thomas L Hanson
                                 --------------------------------------------- 
                                    Name:    Thomas L. Hanson
                                    Title:   Vice President and Treasurer


November 23, 2004




                                      -5-

                                      


Alliant Energy Corporation
Certificate Pursuant to Rule 24
Exhibit A
Report Period:  July 1, 2004 - September 30, 2004

Item 1: A  computation  in  accordance  with rule 53(a)  setting  forth  Alliant
     Energy's  "aggregate  investment" in all EWGs and FUCOs, its  "consolidated
     retained  earnings" and a  calculation  of the amount  remaining  under the
     Requested EWG/FUCO Investment Authority.

Item 2: A chart showing  Alliant  Energy's  aggregate  investment in each EWG or
     FUCO compared to the Requested  EWG/FUCO  Investment  Authority.  The chart
     should  also  identify  any  new EWG or  FUCO,  compared  to the  Requested
     EWG/FUCO  Investment  Authority,  in which  Alliant  Energy has invested or
     committed to invest during the preceding quarter.

September 30, 2004 



                                                                                                                
                                                                                                                        Aggregate   
                                                                              Investments        Commitments          Investment
                                                                             ------------------------------------------------------
                                                                                              (dollars in millions)

Alliant Energy Operaciones de Mexico, S. de R.L. de C.V.                        $        -        $         -         $       -
Alliant Energy Servicios de Mexico, S. de R.L. de C.V.                                   -                  -                 -
Anhui New Energy Heat & Power Co. Ltd.                                                12.3                  -              12.3
Catleo Energia S.A.                                                                      -                  -                 -
Companhia de Electricidade de Nova Friburgo S.A.                                         -                  -                 -
Companhia Energetica da Borborema S.A.                                                   -                  -                 -
Companhia Forca e Luz Cataguazes-Leopoldina S.A.                                       1.0                  -               1.0
Empresa Energetica de Sergipe S.A.                                                     0.2                  -               0.2
Hebei Wuan Peak Heat and Power Co. Ltd.                                                7.7                  -               7.7
Henan Anfeng Electric Power Co. Ltd.                                                   9.0                  -               9.0
Henan Yongfeng Electric Power Co. Ltd.                                                11.0                  -              11.0
Infratil Ltd.                                                                         15.0                  -              15.0
Jiaxing JIES Heat & Power Co. Ltd.                                                    13.4                  -              13.4
LDM Utility Co., S.A. de C.V.                                                         40.5                  -              40.5
Shijiazhuang Chengfeng Cogeneration Co. Ltd.                                          15.3                  -              15.3
Sociedade Anonima de Eletrificacao da Paraiba S.A.                                    90.2                  -              90.2
Tai An Hua Feng Peak Heat and Power Co. Ltd.                                           6.3                  -               6.3
Tai An Xin Wen Peak Heat and Power Co. Ltd.                                              -                  -                 -
Tangshan Peak Heat & Power Co. Ltd.                                                   48.5                  -              48.5
Tongxiang TIES Power & Heat Co. Ltd.                                                  10.4                  -              10.4
TrustPower Ltd.                                                                       44.1                  -              44.1
Usina Termeletrica de Juiz De Fora S.A.                                               13.9                  -              13.9
Zouping Peak CHP Co. Ltd.                                                             15.9                  -              15.9
                                                                             ------------------------------------------------------
Aggregate Investments in Foreign Utility Companies (FUCOs)                           354.7                  -             354.7
                                                                             ------------------------------------------------------
                                                                          

Alliant Energy Neenah, LLC                                                            56.0                  -              56.0
Costs and commitments related to a 300 Mw, natural gas fired, generating )       
 facility in Sheboygan Falls, WI (Sheboygan Power, LLC) (new)                         86.6               48.1             134.7

Guarantee of the debt security of a 6 Mw low Btu gas electric generating              
 facility in Cedar Rapids, Iowa                                                          -                4.2               4.2    
                                                                             ------------------------------------------------------
      Aggregate Investments in Electric Wholesale Generators (EWGs)                   142.6              52.3             194.9
                                                                             ------------------------------------------------------
                                                                             
                Total Aggregate Investments in EWGs and FUCOs                         497.3              52.3             549.6
                                                                             ======================================================
                                                                             

                                                                                                    Balance at          Average
                                                                                                  end of quarter        balance
                                                                             ------------------------------------------------------
Alliant Energy's consolidated retained earnings at December 31, 2003                                    840.4     
Alliant Energy's consolidated retained earnings at March 31, 2004                                       846.8
Alliant Energy's consolidated retained earnings at June 30, 2004                                        805.9
Alliant Energy's consolidated retained earnings at September 30, 2004                                   859.5
                                                                             ------------------------------------------------------
Alliant Energy's "consolidated retained earnings" at September 30, 2004                                                    838.2
                                                 (average of ending balance of four previous quarters) 
                                                                                                                    
                                                                                                                    ----------------
Amount remaining under the Requested EWG/FUCO Investment Authority.                                                    $   288.6
                                                                                                                    ================



                                      -6-


Alliant Energy Corporation
Certificate Pursuant to Rule 24
Exhibit B
Report Period:  July 1, 2004 - September 30, 2004


Item 3:  The  consolidated   capitalization   ratio  of  Alliant  Energy,   with
     consolidated debt to include all short-term debt and all other system debt,
     both recourse and nonrecourse, including debt of EWGs and FUCOs.


Alliant Energy Corporation Consolidated Statement of Capitalization
September 30, 2004
(amounts in thousands of dollars)


                                                                    
                                                    Amounts           Percentage
                                                 -------------------------------

Common equity                                      $  2,517,488        48.60%
Cumulative preferred stock                              243,803         4.70%
Consolidated debt (1)                                 2,419,010        46.70%
                                                 -------------------------------
                                                   $  5,180,301       100.00%
                                                 ===============================
                                                                 

(1)
Long-term debt, net (excluding current portion)    $  2,237,628
Current maturities and sinking funds                     97,960
Variable rate demand bonds                               39,100
Commercial paper                                         21,000
Other short-term borrowings                              23,322
                                                 -----------------
                                                   $  2,419,010
                                                 =================

                                                         

                                      

                                      -7-

Alliant Energy Corporation
Certificate Pursuant to Rule 24
Exhibit C
Report Period:  July 1, 2004 - September 30, 2004


Item 4: The market-to-book ratio of Alliant Energy's common stock.


                                                           


Market value per share at September 30, 2004              $         24.88
Common equity at September 30, 2004 (in thousands)        $     2,517,488
Total shares outstanding at September 30, 2004                115,515,983
Book value per share at September 30, 2004                $         21.79
Market-to-book ratio of Alliant Energy's common stock             114.16%
                                                         =====================





                                      

                                      -8-


Certificate Pursuant to Rule 24
Exhibit D
Report Period:  July 1, 2004 - September 30, 2004


Item 5: Analysis of the growth in consolidated retained earnings that segregates
     total  earnings  growth of EWGs and FUCOs from that  attributable  to other
     subsidiaries of Alliant Energy.

Alliant Energy Corporation
Statement of Retained Earnings
For the Three Months Ended September 30, 2004
(amounts in thousands of dollars)



                                                       

Beginning balance (June 30, 2004)                         $  805,938
Net income/(loss):
From EWGs and FUCOs (*)                       4,556
Other                                        77,236
                                         ------------
Total net income/(loss)                                       81,792
Common stock dividends                                       (28,242)
                                                         -------------
Ending balance (September 30, 2004)                       $  859,488
                                                         =============



(*)  Amount  does not include  the  allocation  of  interest,  tax or  corporate
     expenses.



                                      

                                      -9-

Alliant Energy Corporation
Certificate Pursuant to Rule 24
Exhibit E
Report Period:  July 1, 2004 - September 30, 2004


Item 6: A  statement  of  revenues  and net income for each EWG and FUCO for the
     twelve months ending as of the end of that quarter.


                                                                                       
                                                                 
                                                               For the twelve months ended September 30, 2004         
                                                             --------------------------------------------------
                                                             
                                                                 Revenues              Net Income/(Loss)    
                                                             -----------------      ----------------------
                                                             
Alliant Energy Neenah, LLC                                     $  15,160,040           $   5,515,764
Alliant Energy Operaciones de Mexico, S. de R.L. de C.V.       $     955,548           $    (183,987)
Alliant Energy Servicios de Mexico, S. de R.L. de C.V.         $           -           $           -
Anhui New Energy Heat & Power Co. Ltd.                         $  24,467,920           $   1,870,906
Catleo Energia S.A.                                            $  11,055,720           $   6,766,295
Companhia de Electricidade de Nova Friburgo S.A.               $  27,480,744           $   1,523,578
Companhia Energetica da Borborema S.A.                         $  33,135,989           $   1,584,253
Companhia Forca e Luz Cataguazes-Leopoldina S.A.               $ 100,583,365           $  (3,983,623)
Empresa Energetica de Sergipe S.A.                             $ 143,891,216           $  10,345,961
Hebei Wuan Peak Heat and Power Co. Ltd.                        $   6,266,184           $    (676,146)
Henan Anfeng Electric Power Co. Ltd.                           $  10,164,661           $     391,846
Henan Yongfeng Electric Power Co. Ltd.                         $   9,847,110           $      88,232
Infratil Ltd. (*)                                              $  92,590,487           $  13,776,229
Jiaxing JIES Heat & Power Co. Ltd.                             $  22,904,232           $   1,446,702
LDM Utility Co., S.A. de C.V. (**)                             $       4,174           $  (2,260,376)
Shijiazhuang Chengfeng Cogeneration Co. Ltd.                   $   8,807,901           $     829,974
Sheboygan Power, LLC.                                          $           -           $           -
Sociedade Anonima de Eletrificacao da Paraiba S.A.             $ 176,326,352           $  11,048,179
Tai An Hua Feng Peak Heat and Power Co. Ltd.                   $   8,857,991           $   2,534,805
Tai An Xin Wen Peak Heat and Power Co. Ltd.                    $   9,978,335           $   1,913,322
Tangshan Peak Heat and Power Co. Ltd.                          $  26,990,874           $   4,901,334
Tongxiang TIES Power & Heat Co. Ltd.                           $  11,449,047           $     625,815
TrustPower Ltd. (*)                                            $ 351,907,383           $  39,890,048
Usina Termeletrica de Juiz De Fora S.A.                        $  36,801,257           $   5,703,779
Zouping Peak CHP Co. Ltd.                                      $  17,440,581           $      59,759




(*)  The most recently  available  information for Alliant Energy's FUCOs in New
     Zealand is the twelve months ended March 31, 2004.

(**) The most recently  available  information for LDM Utility Co., S.A. de C.V.
     is the twelve months ended December 31, 2003.



                                     

                                      -10-

Alliant Energy Corporation
Certificate Pursuant to Rule 24
Exhibit F
Report Period:  July 1, 2004 - September 30, 2004

Item 8: The total  number of shares of Alliant  Energy  common  stock  issued or
     issuable under options granted during the quarter under employment  benefit
     plans and dividend  reinvestment plans including any employee benefit plans
     or dividend reinvestment plans later adopted.



                                             

                               Original Issue

               Shareowner                          Long-term Equity
  Date        Direct Plan         401K              Incentive Plan
-----------------------------------------------------------------------

 7/15/2004        14,675               -                     -         
 7/28/2004             -               -                27,173
 7/30/2004             -               -                 2,090
 8/10/2004             -          27,259                     -
 8/16/2004       116,886          50,506                     -
 9/15/2004        14,665               -                     - 
-----------------------------------------------------------------------
   TOTALS        146,226          77,765                29,263

Grand Total:               253,254




                                     

                                      -11-


Alliant Energy Corporation
Certificate Pursuant to Rule 24
Exhibit G
Report Period:  Quarter Ending September 30, 2004


Item 9: If a guaranty is issued during the quarter,  the name of the  guarantor,
     the name of the  beneficiary  of the  guaranty  and the  amount,  terms and
     purpose of the guaranty. 




                                                                                                         
                                                                                                 Date Of
                                                                                                 Issue/
                                                                                                 Amend-      Date of      Amount
Guarantor        On Behalf Of       Purpose                     Name of Guaranteed Party         ment       Expiration   Guaranteed
------------------------------------------------------------------------------------------------------------------------------------

Resources       NG Energy           Purchase/ Sale of Natural   Cinergy Marketing & Trading, LP   7/01/2004   6/30/2005  $ 5,000,000
                 Trading, LLC        Gas; Derivatives

Resources       NG Energy           Purchase/ Sale of Natural   BP Canada Energy                  7/09/2004   1/31/2005  $10,000,000
                 Trading, LLC        Gas                         Marketing Corp.

Resources       NG Energy           Gas Transportation          Northern Natural Gas Company      7/26/2004  12/31/2004  $ 1,000,000
                 Trading, LLC

Resources       NG Energy           Purchase/ Sale of Natural   Entergy-Koch Trading, LP          7/26/2004  12/31/2004  $ 7,500,000
                 Trading, LLC        Gas; Derivatives

Resources       Industrial Energy   Purchase/ Sale of Natural   BP Canada Energy                  9/21/2004   9/30/2005  $   150,000
                 Applications, Inc.  Gas                         Marketing Corp.
                                                                                                                                    
Alliant Energy  AECS**              Transmission                The PJM Interconnection, LLC      7/22/2004   8/30/2005  $ 7,000,000


Alliant Energy  Montello Senior     L/C Reimbursement           Wachovia Bank, N.A. as issuer of  9/02/2004   3/28/2005  $    57,500
                 Housing Limited     Agreement                   letter of credit in favor of
                 Partnership                                     Wisconsin Housing and Economic
                                                                 Development Authority


** Alliant Energy Corporate Services, Inc.



                                                                                                 

                                                         Name of                                                Amount
Guarantor        On Behalf Of      Purpose              Guaranteed Party               Period                   Guaranteed
-----------------------------------------------------------------------------------------------------------------------------------

Bonds:

Alliant Energy    WP&L/AECS       Worker's Comp.Bond    State of Wisconsin          7/01/04-7/01/05            $   500,000

Alliant Energy    Cogenex         Performance/          United States Govt.         7/17/04-4/01/05            $ 9,359,579
                                  Payment Bond

Alliant Energy    Cogenex         Performance/          Albert Einstein             7/28/04-6/02/05            $ 2,969,104
                                  Payment Bond          Healthcare Center

Alliant Energy    Cogenex         Performance/          USA GSA Michigan            7/23/04-7/23/05            $ 3,991,824
                                  Payment Bond

Alliant Energy    Cogenex         Performance/          County of Suffolk           8/12/04-8/12/05            $ 2,251,190
                                  Payment Bond

Alliant Energy    Alliant Energy  Contractor's Bond     State of New Mexico         9/08/04-9/08/05            $     5,000
                   EPC, LLC

Alliant Energy    Cogenex         Performance/          New York State              9/01/04-9/01/05            $ 3,480,883
                                  Payment Bond          DOC Bedford




                                      

                                      -12-


Alliant Energy Corporation
Certificate Pursuant to Rule 24
Exhibit H
Report Period:  July 1, 2004 - September 30, 2004


Item 13: The name,  parent  company  and  amount  invested  in any  intermediate
     subsidiary  or financing  subsidiary  during the quarter and the amount and
     terms of any securities issued by those subsidiaries during the quarter.



Alliant Energy Corporation formed the following intermediate subsidiaries during
the period  from July 1, 2004  through  September  30,  2004.  The  intermediate
subsidiary is designated with an asterisk while its parent company is designated
as such. The amounts in  parenthesis  represent the amount of investment in that
intermediate subsidiary.


           

 Alliant Energy Resources, Inc. (Parent) 
       Alliant Energy International,  Inc.
             Sea Lagoon Developments, S. de R.L. de C.V.* - ($0)



Alliant Energy  Corporation did not form any financing  subsidiaries  during the
period from July 1, 2004 through September 30, 2004.


Alliant  Energy  and its  subsidiaries  are  authorized  by the  Securities  and
Exchange  Commission to invest up to $800 million in additional  "energy assets"
through  December  31,  2004.  Given the  initial  public  offering  of  Whiting
Petroleum  Corporation  ("WPC") completed in the fourth quarter of 2003, Alliant
Energy now includes  approximately  $23 million of its previous  $397 million of
investment  in "energy  assets"  which is  equivalent  to Alliant  Energy's 5.1%
remaining  ownership  interest  in WPC and $4  million of other  investments  in
"energy assets" by various other Alliant Energy subsidiaries. Alliant Energy did
not have any  changes in its  investments  in "energy  assets"  during the third
quarter of 2004.


                                      

                                      -13-


Alliant Energy Corporation
Certificate Pursuant to Rule 24
Exhibit I
Report Period:  July 1, 2004 - September 30, 2004


Item 16:  A  table  showing,  as of the  end  of the  quarter,  the  dollar  and
     percentage  components  of the  capital  structure  of Alliant  Energy on a
     consolidated basis and of each Utility Subsidiary.



                                                                                                               

Consolidated Statements of Capitalization                                          Interstate Power and       Wisconsin Power and
September 30, 2004                                 Alliant Energy Corporation        Light Company              Light Company
(amounts in thousands of dollars)
                                                  Amounts       Percentage     Amounts      Percentage      Amounts      Percentage
                                                -----------------------------  --------------------------  -------------------------
                                                

Common equity                                     $  2,517,488     48.60%     $  1,138,389     49.37%       $  1,029,785     65.14%
Cumulative preferred stock                             243,803      4.70%          183,840      7.97%             59,963      3.79%
Consolidated debt (1)                                2,419,010     46.70%          983,903     42.66%            491,314     31.07%
                                                ---------------------------  ----------------------------  -------------------------
                                                  $  5,180,301    100.00%     $  2,306,132    100.00%       $  1,581,062    100.00%
                                                ===========================  ===========================   =========================
                                                

(1)
Long-term debt, net (excluding current portion)   $  2,237,628               $    962,903                   $    364,214
Current maturities and sinking funds                    97,960                          -                              -
Variable rate demand bonds                              39,100                          -                         88,000
Commercial paper                                        21,000                     21,000                         39,100
Other short-term borrowings                             23,322                          -                              -
                                                ----------------             ---------------               ---------------
                                                  $  2,419,010               $    983,903                   $    491,314
                                                ================             ===============               ===============
                                                              



                                     

                                      -14-


Alliant Energy Corporation
Certificate Pursuant to Rule 24
Exhibit J
Report Period:  July 1, 2004 - September 30, 2004


Item 17: A retained earnings analysis of Alliant Energy on a consolidated  basis
     and  of  each  Utility  Subsidiary   detailing  gross  earnings,   goodwill
     amortization,  dividends paid out of each capital account and the resulting
     capital account balances at the end of the quarter.

Statement of Retained Earnings
For the Three Months Ended September 30, 2004
(amounts in thousands of dollars)


                                                                                
                                                                                      Alliant Energy   
                                         Interstate Power       Wisconsin Power      Corporation
                                         and Light Company     and Light Company      Consolidated     

Beginning balance (June 30, 2004)         $   342,896           $  447,637            $  805,938
Gross earnings (1)                             58,394               32,737                81,792
Goodwill amortization (2)                           -                    -                     -
Common stock dividends                        (25,514)             (22,235)              (28,242)
                                        ---------------------------------------------------------------
Ending balance (September 30, 2004)       $   375,776           $  458,139            $  859,488
                                        ===============================================================



(1) Gross earnings is defined as net income excluding goodwill amortization.

(2)  Pursuant  to the  adoption  of FAS142 on January 1,  2002,  Alliant  Energy
Corporation  and  its  consolidated  subsidiaries  ceased  the  amortization  of
goodwill.