Edgar Filing: ALLIANT ENERGY CORP

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a)
of the Securities Exchange Act of 1934
(Amendment No. )

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[X] Definitive Proxy Statement

[_] Definitive Additional Materials

[_] Soliciting Material Pursuant to (S)240.14a-12

ALLIANT ENERGY CORPORATION
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(Name of Registrant as Specified In Its Charter)

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(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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Last update: 02/22/2002

NOTICE OF 2003 ANNUAL MEETING

Alliant Energy
Corporation

Proxy Statement YOUR VOTE IS IMPORTANT

[ALLIANT ENERGY LOGO]

ALLIANT ENERGY CORPORATION

ANNUAL MEETING OF SHAREOWNERS

DATE: May 28, 2003

TIME: 1:00 PM, Central Daylight Savings Time

LOCATION: Alliant Energy Center
Exhibition Hall
1919 Alliant Energy Center Way
(Intersection of John Nolen Drive and Rimrock Road)
Madison, Wis.

SHAREOWNER INFORMATION NUMBERS

LOCAL CALLS (Madison, Wis., Area) 608-458-3110

TOLL FREE NUMBER................. 800-356-5343

[LOGO]
ALLIANT
ENERGY/R/

Alliant Energy Corporation
4902 North Biltmore Lane
P. O. Box 2568
Madison, WI 53701-2568
Phone: 608.458.3110

NOTICE OF ANNUAL MEETING AND PROXY STATEMENT

Dear Alliant Energy Corporation Shareowner:

On Wednesday, May 28, 2003, Alliant Energy Corporation (the "Company") will
hold its 2003 Annual Meeting of Shareowners at the Alliant Energy Center, 1919
Alliant Energy Center Way, Madison, Wis. The meeting will begin at 1:00 p.m.
Central Daylight Savings Time.

Only shareowners of record at the close of business on April 8, 2003, may vote
at this meeting. All shareowners are requested to be present at the meeting in
person or by proxy so that a quorum may be ensured. At the meeting, the
Company's shareowners will:

1. Elect three Directors for terms expiring at the 2006 Annual Meeting of
Shareowners; and

2. Attend to any other business properly presented at the meeting.

The Board of Directors of the Company presently knows of no other business to
come before the meeting.

If your shares are registered directly with the Company's Shareowner Services
Department, then you may vote those shares by telephone or Internet.
Instructions for voting by these convenient methods are shown on the enclosed
proxy card. If you prefer, you may sign and date the enclosed proxy card and
return it in the postage-paid envelope.

A copy of the Company's 2002 Annual Report is enclosed.

By Order of the Board of Directors,

/s/ F. J. Buri

F. J. Buri
Corporate Secretary

Dated, mailed and made available on the
Internet on or about April 14, 2003.

TABLE OF CONTENTS

Questions and Answers....................................................... 1

Election of Directors....................................................... 5

Meetings and Committees of the Board........................................ 8

Compensation of Directors................................................... 9

Ownership of Voting Securities.............................................. 10

Compensation of Executive Officers.......................................... 11

Stock Options............................................................... 12

Long-Term Incentive Awards.................................................. 14

Certain Agreements.......................................................... 15

Retirement and Employee Benefit Plans....................................... 16

Report of the Compensation and Personnel Committee on Executive Compensation 20

Report of the Audit Committee............................................... 23

Comparison of Five-Year Cumulative Total Return............................. 24

Section 16(a) Beneficial Ownership Reporting Compliance..................... 25

Appendix A--Audit Committee Charter......................................... A-1

QUESTIONS AND ANSWERS

1. Q: Why am I receiving these materials?
A: The Board of Directors of Alliant Energy Corporation (the "Company") is
providing these proxy materials to you in connection with the Company's
Annual Meeting of Shareowners (the "Annual Meeting"), which will take
place on Wednesday, May 28, 2003. As a shareowner, you are invited to
attend the Annual Meeting and are entitled to and requested to vote on
the matters described in this proxy statement.

2. Q: What is Alliant Energy Corporation?
A: The Company is a public utility holding company whose primary first tier
subsidiaries include Interstate Power and Light Company ("IP&L"),
Wisconsin Power and Light Company ("WP&L"), Alliant Energy Resources,
Inc. ("AER") and Alliant Energy Corporate Services, Inc. ("Alliant Energy
Corporate Services").

3. Q: Who is entitled to vote at the Annual Meeting?
A: Only shareowners of record at the close of business on April 8, 2003, are
entitled to vote at the Annual Meeting. As of the record date, 92,733,802
shares of the Company's common stock were issued and outstanding. Each
shareowner is entitled to one vote for each share of the Company's common
stock held on the record date.

4. Q: What may I vote on at the Annual Meeting?
A: You may vote on the election of three nominees to serve on the Company's
Board of Directors for terms expiring at the Annual Meeting of
Shareowners in the year 2006.

5. Q: How does the Board of Directors recommend I vote?
A: The Board of Directors recommends that you vote your shares FOR each of
the listed Director nominees.

6. Q: How can I vote my shares?
A: You may vote either in person at the Annual Meeting or by appointing a
proxy. If your shares are registered directly with the Company's
Shareowner Services Department, then you have three options to appoint a
proxy:

. By telephone;
. By Internet; or
. By mailing the proxy card.

Please refer to the instructions included on your proxy card to vote by
proxy. If you hold your shares through a bank, broker or other record
holder, then you may vote by the methods your bank or broker makes
available, in which case the bank or broker will include instructions
with this proxy statement. If you vote by the Internet, then you should
understand that there might be costs associated with electronic access,
such as usage charges from Internet access providers and telephone
companies that you must bear. Appointing a proxy will not affect your
right to vote your shares if you attend the Annual Meeting and desire to
vote in person.

7. Q: How are votes counted?
A: In the election of Directors, you may vote FOR all of the Director
nominees or your vote may be WITHHELD with respect to one or more
nominees. If you return your signed proxy card but do not mark the boxes
showing how you wish to vote, your shares will be voted FOR all listed
Director nominees.

8. Q: Can I change my vote?
A: You have the right to revoke your proxy at any time before the Annual
Meeting by:

. Providing written notice to the Corporate Secretary of the Company and
voting in person at the Annual Meeting; or
. Appointing a new proxy prior to the start of the Annual Meeting.

Attendance at the Annual Meeting will not cause your previously appointed
proxy to be revoked unless you specifically so request in writing.

9. Q: What shares are included on the proxy card(s)?
A: Your proxy card(s) covers all of your shares of the Company's common
stock, including any shares held in your account under the Company's
Shareowner Direct Plan. For present or past employees of IP&L, your proxy
includes any shares held in your account under the IES Utilities Inc.
Employee Stock Ownership Plan.

10. Q: How is the Company's common stock held for employees in the Alliant
Energy Corporation 40l(k) Savings Plan voted?
A: For shares held in the 401(k) Savings Plan, you will receive a separate
form of proxy from the trustee of the Plan.

11. Q: What does it mean if I get more than one proxy card?
A: If your shares are registered differently and are in more than one
account, then you will receive more than one card. Be sure to vote all of
your accounts to ensure that all of your shares are voted. The Company
encourages you to have all accounts registered in the same name and
address (whenever possible). You can accomplish this by contacting the
Company's Shareowner Services Department at the Shareowner Information
Numbers shown at the front of this proxy statement.

12. Q: Who may attend the Annual Meeting?
A: All shareowners who owned shares of the Company's common stock on April
8, 2003, may attend the Annual Meeting. You will be asked to indicate
whether you plan to attend the Annual Meeting when voting electronically,
or you may indicate on the enclosed proxy card your intention to attend
the Annual Meeting and return it with your signed proxy.

13. Q: How will voting on any other business be conducted?
A: The Board of Directors of the Company does not know of any business to be
considered at the Annual Meeting other than the election of three
Directors. If any other business is properly presented at the Annual
Meeting, your proxy gives Erroll B. Davis, Jr., the Company's Chairman,
President and Chief Executive Officer, and F. J. Buri, the Company's
Corporate Secretary, authority to vote on such matters at their
discretion.

14. Q: Where and when will I be able to find the results of the voting?
A: The results of the voting will be announced at the Annual Meeting. You
may also call the Company's Shareowner Services Department at the
Shareowner Information Numbers shown at the front of this proxy statement
for the results. The Company will also publish the final results in its
Quarterly Report on Form 10-Q for the second quarter of 2003 to be filed
with the Securities and Exchange Commission ("SEC").

15. Q: Are the Company's 2002 Annual Report and these proxy materials available
on the Internet?
A: Yes. You can access the Company's Web page at www.alliantenergy.com to
view the 2002 Annual Report and these proxy materials.

16. Q: How can I access future proxy materials and annual reports on the
Internet?
A: The Company is offering you the opportunity to consent to access its
future notices of shareowner meetings, proxy materials and annual reports
electronically through the Company's Web site.

If you are a shareowner of record, you can consent to access these
materials electronically to allow the Company to save the cost of
producing and mailing these materials by marking the appropriate box on
your proxy card or by following the instructions provided if you vote
over the Internet or by telephone. If you consent to access these
materials over the Internet, then you will receive a proxy card in the
mail next year with instructions containing the Internet address to
access those materials. However, you will not receive those proxy
materials and the annual report by mail. Your consent will remain in
effect unless it is revoked by calling or writing the Company's
Shareowner Services Department at the Shareowner Information Numbers
shown at the front of this proxy statement or at the address of the
Company.

If you hold your stock through a bank, broker or other holder of record,
please refer to the information provided by that entity for instructions
on how to elect to view future proxy statements and annual reports over
the Internet.

If you consent to electronic access, then you will be responsible for
your usual Internet-related charges (e.g., on-line fees, telephone
charges) in connection with electronic viewing and printing of proxy
materials and annual reports. The Company will continue to distribute
printed materials to shareowners who do not consent to access these
materials electronically.

17. Q: When are shareowner proposals for the 2004 Annual Meeting due?
A: All shareowner proposals to be considered for inclusion in the Company's
proxy statement for the 2004 Annual Meeting, pursuant to Rule 14a-8 under
the Securities Exchange Act of 1934 ("Rule 14a-8"), must be received at
the principal office of the Company by Dec. 15, 2003.

In addition, any shareowner who intends to present a proposal at the 2004
Annual Meeting must comply with the requirements set forth in the
Company's Bylaws. The Company's Bylaws state, among other things, that to
bring business before an annual meeting, a shareowner must give written
notice that complies with the Bylaws to the Corporate Secretary of the
Company not later than 45 days in advance of the first annual anniversary
of the date the Company first mailed its proxy statement to shareowners
for the prior year's annual meeting. Accordingly, the Company must
receive notice of a shareowner's proposal submitted other than pursuant
to Rule 14a-8 no later than Feb. 29, 2004. If the notice is received
after Feb. 29, 2004, then the notice will be considered untimely and the
Company is not required to present such proposal at the 2004 Annual
Meeting. If the Board of Directors chooses to present a proposal
submitted other than pursuant to Rule 14a-8 at the 2004 Annual Meeting,
then the persons named in the proxies solicited by the Board for the 2004
Annual Meeting may exercise discretionary voting power with respect to
such proposal.

18. Q: Who are the independent auditors of the Company and how are they
appointed?
A: Deloitte & Touche LLP audited the financial statements of the Company for
the year ended Dec. 31, 2002, and re-audited the financial statements of
the Company for the years ended Dec. 31, 2001, and Dec. 31, 2000.
Representatives of Deloitte & Touche LLP are expected to be present at
the meeting with the opportunity to make a statement if they so desire
and to be available to respond to appropriate questions. The Audit
Committee of the Board of Directors expects to appoint the Company's
independent auditors for 2003 later in the year.

On June 12, 2002, the Board of Directors of the Company, upon the
recommendation of the Audit Committee, dismissed Arthur Andersen LLP as
the Company's independent auditors and contracted with Deloitte & Touche
LLP to serve as its independent auditors for 2002. Arthur Andersen's
reports on the Company's consolidated financial statements for the years
ended Dec. 31, 2001, and Dec. 31, 2000, did not contain an adverse
opinion, disclaimer of opinion or qualification or modification as to
uncertainty, audit scope or accounting principles. During the years ended
Dec. 31, 2001, and Dec. 31, 2000, and the subsequent interim period,
there were no disagreements between the Company and Arthur Andersen on
any matter of accounting principles or practices, financial statement
disclosure or auditing scope or procedures, which disagreements, if not
resolved to the satisfaction of the accounting firm, would have caused it
to make a reference to the subject matter of such disagreements in
connection with its reports.

19. Q: Who will bear the cost of soliciting proxies for the Annual Meeting and
how will these proxies be solicited?
A. The Company will pay the cost of preparing, assembling, printing, mailing
and distributing these proxy materials. In addition to the mailing of
these proxy materials, the solicitation of proxies or votes may be made
in person, by telephone or by electronic communication by the Company's
officers and employees who will not receive any additional compensation
for these solicitation activities. The Company will pay banks, brokers,
nominees and other fiduciaries reasonable charges and expenses incurred
in forwarding the proxy materials to their principals. The Company has
retained Georgeson Shareholder Communications Inc. to aid in the
solicitation at an estimated cost of $6,000 plus reimbursable
out-of-pocket expenses.

20. Q: If more than one shareowner lives in my household, how can I obtain an
extra copy of the Company's 2002 Annual Report and this proxy statement?
A. Pursuant to the rules of the SEC, services that deliver the Company's
communications to shareowners that hold their stock through a bank,
broker or other holder of record may deliver to multiple shareowners
sharing the same address a single copy of the Company's 2002 Annual
Report and proxy statement. Upon written or oral request, the Company
will mail a separate copy of the 2002 Annual Report and/or proxy
statement to any shareowner at a shared address to which a single copy of
each document was delivered. You may notify the Company of your request
by calling or writing the Company's Shareowner Services Department at the
Shareowner Information Numbers shown at the front of this proxy statement
or at the address of the Company shown on the first page of this proxy
statement.

ELECTION OF DIRECTORS

Three Directors will be elected this year for terms expiring in 2006. The
nominees for election as recommended by the Nominating and Governance Committee
of the Company's Board of Directors are: Erroll B. Davis, Jr., Robert W.
Schlutz and Wayne H. Stoppelmoor. Each of the nominees is currently serving as
a Director of the Company. Each person elected as Director will serve until the
Annual Meeting of Shareowners of the Company in 2006 or until his successor has
been duly elected and qualified.

Directors will be elected by a plurality of the votes cast at the meeting
(assuming a quorum is present). Consequently, any shares not voted at the
meeting, whether by abstention or otherwise, will have no effect on the
election of Directors. The proxies solicited may be voted for a substitute
nominee or nominees if any of the nominees are unable to serve, or for good
reason will not serve, a contingency not now anticipated.

Brief biographies of the Director nominees and continuing Directors follow.
These biographies include their age (as of Dec. 31, 2002), an account of their
business experience and the names of publicly held and certain other
corporations of which they are also Directors. Except as otherwise indicated,
each nominee and continuing Director has been engaged in his or her present
occupation for at least the past five years.

NOMINEES

[PHOTO] ERROLL B. DAVIS, JR. Director Since 1982
Age 58 Nominated Term Expires in 2006
Erroll B. Davis, Jr.
Mr. Davis has served as President and Chief Executive Officer of the Company since 1990. He
was elected Chairman of the Board in 2000. Mr. Davis joined WP&L in 1978 and served as
President of WP&L from 1987 to 1998. He was elected Chief Executive Officer of WP&L in
1988. He has also served as Chief Executive Officer of AER and IP&L (or predecessor
companies) since 1998. He is a member of the Boards of Directors of BP p.l.c.; PPG
Industries, Inc.; Electric Power Research Institute; and the Edison Electric Institute, where he
also serves as Chairman. Mr. Davis has served as a Director of WP&L since 1984, of AER since
1988 and of IP&L (or predecessor companies) since 1998.

[PHOTO] ROBERT W. SCHLUTZ Director Since 1998
Age 66 Nominated Term Expires in 2006
Robert W. Schlutz
Mr. Schlutz is President of Schlutz Enterprises, a diversified farming and retailing business in
Columbus Junction, Iowa. Mr. Schlutz has served as a Director of IP&L (or predecessor
companies) since 1989 and of WP&L and AER since 1998. Mr. Schlutz is Chairperson of the
Environmental, Nuclear, Health and Safety Committee.

[PHOTO] WAYNE H. STOPPELMOOR Director Since 1998
Age 68 Nominated Term Expires in 2006
Wayne H. Stopplemoor
Mr. Stoppelmoor served as Vice Chairman of the Board of the Company from April 1998 until
April 2000. Prior to 1998, he was Chairman, President and Chief Executive Officer of Interstate
Power Company. He retired as Chief Executive Officer of Interstate Power Company in 1997.
Mr. Stoppelmoor has served as a Director of IP&L (or predecessor companies) since 1986 and
of WP&L and AER since 1998.

The Board of Directors unanimously recommends a vote FOR all nominees for
election as Directors.

CONTINUING DIRECTORS

[PHOTO] ALAN B. ARENDS Director Since 1998
Age 69 Term Expires in 2005
Alan B. Arends
Mr. Arends is Chairman of the Board of Directors of Alliance Benefit Group Financial Services
Corp., Albert Lea, Minn., an employee benefits company that he founded in 1983. He has
served as a Director of IP&L (or predecessor companies) since 1993 and of WP&L and AER
since 1998.

[PHOTO] JACK B. EVANS Director Since 2000
Age 54 Term Expires in 2004
Jack B. Evans
Mr. Evans is a Director and since 1996 has served as President of The Hall-Perrine
Foundation, a private philanthropic corporation in Cedar Rapids, Iowa. Previously, Mr. Evans
was President and Chief Operating Officer of SCI Financial Group, Inc., a regional financial
services firm. Mr. Evans is a Director of Gazette Communications, the Federal Reserve Bank of
Chicago and Nuveen Institutional Advisory Corp., and Vice Chairman and a Director of
United Fire and Casualty Company. Mr. Evans has served as a Director of IP&L (or
predecessor companies), WP&L and AER since 2000. Mr. Evans is Chairperson of the Audit
Committee.

[PHOTO] KATHARINE C. LYALL Director Since 1994
Age 61 Term Expires in 2005
Katharine C. Lyall
Ms. Lyall is President of the University of Wisconsin System in Madison, Wis. In addition to
her administrative position, she is a professor of economics at the University of Wisconsin-
Madison. She serves on the Boards of Directors of the Kemper National Insurance Companies,
M&I Corporation and the Carnegie Foundation for the Advancement of Teaching. Ms. Lyall
has served as a Director of WP&L since 1986, of AER since 1994 and of IP&L (or predecessor
companies) since 1998.

[PHOTO] SINGLETON B. MCALLISTER Director Since 2001
Age 50 Term Expires in 2005
Singleton B. McAllister
Ms. McAllister is a partner with Patton Boggs LLP, a Washington D.C.-based law firm. From
1996 until early 2001, Ms. McAllister was General Counsel for the United States Agency for
International Development. She was also a partner at Reed, Smith, Shaw and McClay where
she specialized in government relations and corporate law. Ms. McAllister has served as a
Director of IP&L (or predecessor companies), WP&L and AER since 2001.

[PHOTO] DAVID A. PERDUE Director Since 2001
Age 53 Term Expires in 2004
David A. Perdue
Mr. Perdue was named Chief Executive Officer and a Director of Dollar General Corporation,
a retail sales organization headquartered in Goodlettsville, Tenn., in April 2003. Prior to this
position, he served as Chairman and Chief Executive Officer of Pillowtex Corporation, a
textile manufacturing company located in Kannapolis, N.C., from July 2002 to March 2003.
Prior to this position, he was President and Chief Executive Officer of the Reebok Brand for
Reebok International Limited. Prior to joining Reebok in 1998, he was Senior Vice President
of Operations at Haggar, Inc. Mr. Perdue has served as a Director of IP&L (or predecessor
companies), WP&L and AER since 2001.

[PHOTO] JUDITH D. PYLE Director Since 1992
Age 59 Term Expires in 2004
Judith D. Pyle
Ms. Pyle is Vice Chair of The Pyle Group, a financial services company located in Madison,
Wis. Prior to assuming her current position, Ms. Pyle served as Vice Chairman and Senior Vice
President of Corporate Marketing of Rayovac Corporation (a battery and lighting products
manufacturer), Madison, Wis. In addition, Ms. Pyle is Vice Chairman of Georgette Klinger,
Inc., and a Director of Uniek, Inc. Ms. Pyle has served as a Director of WP&L since 1994, of
AER since 1992 and of IP&L (or predecessor companies) since 1998. Ms. Pyle is Chairperson
of the Compensation and Personnel Committee.

[PHOTO] ANTHONY R. WEILER Director Since 1998
Age 66 Term Expires in 2005
Anthony R. Weiler
Mr. Weiler is a consultant for several home furnishings organizations. Prior to assuming his
current position, Mr. Weiler had been a Senior Vice President for Heilig-Meyers Company, a
national furniture retailer headquartered in Richmond, Va. He is a Director of the Retail Home
Furnishings Foundation. Mr. Weiler has served as a Director of IP&L (or predecessor
companies) since 1979 and of WP&L and AER since 1998. Mr. Weiler is Chairperson of the
Nominating and Governance Committee.

MEETINGS AND COMMITTEES OF THE BOARD

The Board of Directors has standing Audit; Compensation and Personnel;
Environmental, Nuclear, Health and Safety; Nominating and Governance; and
Capital Approval Committees. The following is a description of each of these
committees:

Audit Committee
The Audit Committee held four meetings in 2002. The Committee currently
consists of J. B. Evans (Chair), A. B. Arends, K. C. Lyall, S. B. McAllister
and D. A. Perdue. The Audit Committee is responsible for assisting Board
oversight of: (1) the integrity of the Company's financial statements, (2) the
Company's compliance with legal and regulatory requirements, (3) the
independent auditors' qualifications and independence, and (4) the performance
of the Company's internal audit function and independent auditors. The Audit
Committee is also responsible for the appointment, termination, compensation
and oversight of the Company's independent auditors.

Compensation and Personnel Committee
The Compensation and Personnel Committee held six meetings in 2002. The
Committee currently consists of J. D. Pyle (Chair), A. B. Arends, J. B. Evans
and D. A. Perdue. This Committee sets executive compensation policy,
administers the Company's Long-Term Incentive Program, reviews the performance
of and approves salaries for certain officers and certain other management
personnel, reviews and recommends to the Board new or changed employee benefit
plans, reviews major provisions of negotiated employment contracts, and reviews
human resource development programs.

Environmental, Nuclear, Health and Safety Committee
The Environmental, Nuclear, Health and Safety Committee held three meetings in
2002. The Committee currently consists of R. W. Schlutz (Chair), J. L. Hanes,
J. D. Pyle and A. R. Weiler. The Committee's responsibilities are to review
environmental policy and planning issues of interest to the Company, including
matters involving the Company before environmental regulatory agencies and
compliance with air, water and waste regulations. In addition, the Committee
reviews policies and operating issues related to the Company's nuclear
generating station investments including planning and funding for
decommissioning of the plants. The Committee also reviews health and safety
related policies, activities and operational issues as they affect employees,
customers and the general public.

Nominating and Governance Committee
The Nominating and Governance Committee held two meetings in 2002. The
Committee currently consists of A. R. Weiler (Chair), J. L. Hanes, K. C. Lyall,
S. B. McAllister and R. W. Schlutz. This Committee's responsibilities include
recommending and nominating new members of the Board, recommending committee
assignments and committee chairpersons, evaluating overall Board effectiveness
and compensation, preparing an annual report on Chief Executive Officer
effectiveness, and considering and developing recommendations to the Board of
Directors on other corporate governance issues. In nominating persons for
election to the Board, the Nominating and Governance Committee will consider
nominees recommended by shareowners. Any shareowner wishing to make a
recommendation should write to the Corporate Secretary of the Company, who will
forward all recommendations to the Committee. The Company's Bylaws also permit
shareowner nominations of candidates for election as Directors. These
provisions require such nominations to be made pursuant to timely notice (as
specified in the Bylaws) in writing to the Corporate Secretary of the Company.

Capital Approval Committee
The Capital Approval Committee held no meetings in 2002. The Committee
currently consists of J. B. Evans, J. D. Pyle and A. R. Weiler. Mr. Davis is
the Chair and a non-voting member of this Committee. The purpose of this
Committee is the evaluation of certain investment proposals where (1) an
iterative bidding process is required, and/or (2) the required timelines for
such a proposal would not permit the proposal to be brought before a regular
meeting of the Board of Directors and/or a special meeting of the full Board of
Directors is not practical or merited.

The Board of Directors held seven meetings during 2002. Each Director attended
at least 85% of the aggregate number of meetings of the Board and Board
committees on which he or she served.

The Board and each committee conducts performance evaluations annually to
determine its effectiveness and suggests improvements for consideration and
implementation. In addition, the Nominating and Governance Committee and the
full Board evaluate Mr. Davis' performance as Chief Executive Officer on an
annual basis.

COMPENSATION OF DIRECTORS

No retainer fees are paid to Mr. Davis for his service on the Company's Board
of Directors. In 2002, all other Directors (the "non-employee Directors"), each
of whom served on the Boards of the Company, IP&L, WP&L and AER, received an
annual retainer for service on all four Boards consisting of $30,000 in cash
and 1,000 shares of Company common stock pursuant to the Company's Shareowner
Direct Plan. Travel expenses are paid for each meeting day attended.

Director's Deferred Compensation Plan
Under the Director's Deferred Compensation Plan, Directors may elect to defer
all or part of their retainer fee. Amounts deposited to a Deferred Compensation
Interest Account receive an annual return based on the A-Utility Bond Rate with
a minimum return no less than the prime interest rate published in The Wall
Street Journal. Amounts deposited to a Company Stock Account, whether the cash
portion or the stock portion of the Director's compensation, are treated as
though invested in the common stock of the Company and will be credited with
dividends, which will be reinvested. Annually, the Director may elect that the
Deferred Compensation Account be paid in a lump sum or in annual installments
for up to 10 years beginning in the year of or one tax year after retirement or
resignation from the Board.

Director's Charitable Award Program
The Company maintains a Director's Charitable Award Program for the members of
its Board of Directors beginning after three years of service. The purpose of
the Program is to recognize the interest of the Company and its Directors in
supporting worthy institutions and to enhance the Company's Director benefit
program so that the Company is able to continue to attract and retain Directors
of the highest caliber. Under the Program, when a Director dies, the Company
will donate a total of $500,000 to one qualified charitable organization or
divide that amount among a maximum of four qualified charitable organizations
selected by the individual Director. The individual Director derives no
financial benefit from the Program. All deductions for charitable contributions
are taken by the Company, and the donations are funded by the Company through
life insurance policies on the Directors. Over the life of the Program, all
costs of donations and premiums on the life insurance policies, including a
return of the Company's cost of funds, will be recovered through life insurance
proceeds on the Directors. The Program, over its life, will not result in any
material cost to the Company.

Director's Life Insurance Program
The Company maintains a split-dollar Director's Life Insurance Program for
non-employee Directors, beginning after three years of service, which provides
a maximum death benefit of $500,000 to each eligible Director. Under the
split-dollar arrangement, Directors are provided a death benefit only and do
not have any interest in the cash value of the policies. The Life Insurance
Program is structured to pay a portion of the total death benefit to the
Company to reimburse the Company for all costs of the program, including a
return on its funds. The Life Insurance Program, over its life, will not result
in any material cost to the Company. The imputed income allocations reported
for each Director in 2002 under the Director's Life Insurance Program were as
follows: A. B. Arends -- $50, J. L. Hanes -- $50, K. C. Lyall -- $448, J. D.
Pyle -- $20, W. H. Stoppelmoor -- $948 and A. R. Weiler -- $50.

Pension Arrangements
Prior to April 1998, Mr. Lee Liu, a Director who will be retiring at the Annual
Meeting, participated in the IES Industries Inc. retirement plan, which has
been transferred to Alliant Energy Corporate Services.

Mr. Liu's benefits under the plan have been "grandfathered" to reflect the
benefit plan formula in effect in April 1998. See "Retirement and Employee
Benefit Plans -- IES Industries Pension Plan."

Alliant Energy Corporate Services also maintains a non-qualified Supplemental
Retirement Plan ("SRP") for eligible former officers of IES Industries Inc. Mr.
Liu participates in the SRP. The SRP generally provides for payment of
supplemental retirement benefits equal to 75% of the officer's base salary in
effect at the date of retirement, reduced by benefits receivable under the
qualified retirement plan, for a period not to exceed 15 years following the
date of retirement. The SRP also provides for certain death benefits to be paid
to the officer's designated beneficiary and benefits if an officer becomes
disabled under the terms of the qualified retirement plan.

OWNERSHIP OF VOTING SECURITIES

Listed in the following table are the number of shares of the Company's common
stock beneficially owned by the executive officers listed in the Summary
Compensation Table and all nominees and Directors of the Company, as well as
the number of shares owned by Directors and executive officers as a group as of
Feb. 28, 2003. The Directors and executive officers of the Company as a group
owned 1.8% of the outstanding shares of common stock on that date. No
individual Director or officer owned more than 1% of the outstanding shares of
common stock on that date. To the Company's knowledge, no shareowner
beneficially owned 5% or more of the Company's outstanding common stock as of
Dec. 31, 2002.

SHARES
BENEFICIALLY
NAME OF BENEFICIAL OWNER OWNED/(1)/
------------------------ ------------

Executives/(2)/
William D. Harvey........................ 135,155/(3)/
James E. Hoffman......................... 96,846/(3)/
Eliot G. Protsch......................... 139,443/(3)/
Thomas M. Walker......................... 91,639/(3)/

Director Nominees
Erroll B. Davis, Jr...................... 473,619/(3)/
Robert W. Schlutz........................ 16,791/(3)/
Wayne H. Stoppelmoor..................... 133,935/(3)/

Directors
Alan B. Arends........................... 9,418/(3)/
Jack B. Evans............................ 36,363/(3)/
Joyce L. Hanes/(4)/...................... 8,585/(3)/
Lee Liu/(4)/............................. 192,386/(3)/
Katharine C. Lyall....................... 14,540
Singleton B. McAllister.................. 2,710
David A. Perdue.......................... 3,958/(3)/
Judith D. Pyle........................... 13,043
Anthony R. Weiler........................ 15,409/(3)/

All Executives and Directors as a Group
23 people, including those listed above.. 1,710,829/(3)/

/(1)/Total shares of Company common stock outstanding as of Feb. 28, 2003, were
92,658,243.

/(2)/Stock ownership of Mr. Davis is shown with the Directors.

/(3)/Included in the beneficially owned shares shown are indirect ownership
interests with shared voting and investment powers: Mr. Davis -- 8,467, Mr.
Evans -- 1,000, Ms. Hanes -- 604, Mr. Liu -- 19,755, Mr. Weiler -- 1,389,
Mr. Harvey -- 2,595 and Mr. Protsch -- 783; shares of common stock held in
deferred compensation plans: Mr. Arends -- 4,227, Mr. Davis -- 42,865, Mr.
Evans -- 5,363, Ms. Hanes -- 200, Mr. Perdue -- 3,958, Mr. Schlutz --
6,252, Mr. Weiler -- 4,228, Mr. Harvey -- 26,479, Mr. Hoffman -- 15,753,
Mr. Protsch -- 32,388 and Mr. Walker -- 17,437 (all executive officers and
Directors as a group -- 203,104); and stock options exercisable on or
within 60 days of Feb. 28, 2003: Mr. Davis -- 388,778, Mr. Liu -- 148,849,
Mr. Stoppelmoor -- 119,201, Mr. Harvey -- 87,403, Mr. Hoffman -- 72,953,
Mr. Protsch -- 87,403 and Mr. Walker -- 70,637 (all executive officers and
Directors as a group -- 1,231,041).

/(4)/Ms. Hanes and Mr. Liu will retire as Directors at the 2003 Annual Meeting.

COMPENSATION OF EXECUTIVE OFFICERS

The following Summary Compensation Table sets forth the total compensation paid
by the Company and its subsidiaries to the Chief Executive Officer and the four
other most highly compensated executive officers of the Company for all
services rendered during 2002, 2001 and 2000.

SUMMARY COMPENSATION TABLE

---------------------------------------------------------------------------------------------------------------
Long-Term
Annual Compensation Compensation
--------------------------------------------------------------
--------------------------------------------------------------
Awards Payouts
-----------------------
-----------------------
Securities
Underlying
Name and Other Annual Options LTIP All Other
Principal Position Year Base Salary Bonus Compensation/(1)/ (Shares)/(2)/ Payouts Compensation/(3)/
---------------------------------------------------------------------------------------------------------------

Erroll B. Davis, Jr. 2002 $685,000 $ 0 $ 0 151,687 $ 0 $63,067
Chairman, President and 2001 683,269 489,364 11,265 108,592 359,605 50,284
Chief Executive Officer 2000 637,692 895,200 11,875 111,912 196,711 52,619
---------------------------------------------------------------------------------------------------------------
William D. Harvey 2002 282,500 0 0 26,642 0 25,307
Executive Vice President 2001 274,616 161,233 4,061 21,798 92,209 42,944
2000 264,615 206,541 4,234 21,063 47,474 42,230
---------------------------------------------------------------------------------------------------------------
James E. Hoffman 2002 282,500 0 0 26,642 0 28,480
Executive Vice President 2001 274,616 135,795 0 21,798 92,209 23,455
2000 264,615 233,147 0 21,063 47,474 22,094
---------------------------------------------------------------------------------------------------------------
Eliot G. Protsch 2002 282,500 0 0 26,642 0 22,448
Executive Vice President 2001 274,616 143,688 893 21,798 92,209 38,372
2000 264,615 214,942 1,423 21,063 47,474 38,058
---------------------------------------------------------------------------------------------------------------
Thomas M. Walker 2002 277,500 0 0 25,673 0 44,841
Executive Vice President & 2001 264,615 133,852 0 21,005 88,597 6,207
Chief Financial Officer 2000 254,616 190,026 0 20,268 47,474 6,166

/(1)/Other Annual Compensation consists of income tax gross-ups for reverse
split-dollar life insurance.

/(2)/Awards made in 2002 were in addition to performance share awards as
described in the table entitled "Long-Term Incentive Awards in 2002."

/(3)/The table below shows the components of the compensation reflected under
this column for 2002:

Erroll B. Davis, Jr. William D. Harvey James E. Hoffman Eliot G. Protsch Thomas M. Walker
-----------------------------------------------------------------------------------------------

A. $20,550 $ 7,825 $ 2,825 $ 8,475 $ 5,500
-----------------------------------------------------------------------------------------------
B. 37,568 16,469 24,994 13,312 37,486
-----------------------------------------------------------------------------------------------
C. 4,949 1,013 661 661 1,855
-----------------------------------------------------------------------------------------------
Total $63,067 $25,307 $28,480 $22,448 $44,841

A. Matching contributions to 401(k) Plan and Deferred Compensation Plan

B. Reverse split-dollar life insurance

C. Life insurance coverage in excess of $50,000

STOCK OPTIONS

The following table sets forth certain information concerning stock options
granted during 2002 to the executives named below:
STOCK OPTION GRANTS IN 2002

Potential Realizable Value at
Assumed Annual Rates of
Stock Price Appreciation for
Individual Grants Option Term/(2)/
------------------------------------------------------------------------------
Number of % of Total
Securities Options
Underlying Granted to Exercise of
Options Employees in Base Price Expiration
Name Granted/(1)/ Fiscal Year ($/Share) Date 5% 10%

---------------------------------------------------------------------------------------------------
Erroll B. Davis, Jr. 151,687 16.0% $27.79 5/16/12 $6,866,870 $10,935,116
---------------------------------------------------------------------------------------------------
William D. Harvey 26,642 2.8% 27.79 5/16/12 1,206,083 1,920,622
---------------------------------------------------------------------------------------------------
James E. Hoffman 26,642 2.8% 27.79 5/16/12 1,206,083 1,920,622
---------------------------------------------------------------------------------------------------
Eliot G. Protsch 26,642 2.8% 27.79 5/16/12 1,206,083 1,920,622
---------------------------------------------------------------------------------------------------
Thomas M. Walker 25,673 2.7% 27.79 5/16/12 1,162,217 1,850,767

/(1)/Consists of non-qualified stock options to purchase shares of Company
common stock granted pursuant to the Company's Equity Incentive Plan.
Options were granted on May 16, 2002, and have a three-year vesting
schedule pursuant to which one-third of the options will become exercisable
on each of Jan. 1, 2003; Jan. 1, 2004; and Jan. 1, 2005. Upon a "change in
control" of the Company as defined in the Plan or upon retirement,
disability or death of the option holder, the options will become
immediately exercisable.

/(2)/The hypothetical potential appreciation shown for the named executives is
required by rules of the SEC. The amounts shown do not represent the
historical or expected future performance of the Company's common stock. In
order for the named executives to realize the potential values set forth in
the 5% and 10% columns in the table above, the price per share of the
Company's common stock would be $45.27 and $72.09, respectively, as of the
expiration date of the options.

The following table provides information for the executives named below
regarding the number and value of exercisable and unexercised options. None of
the executives exercised options in fiscal year 2002.

OPTION VALUES AT DEC. 31, 2002

Number of Securities Underlying Value of Unexercised In-the-Money Options
Unexercised Options at Fiscal Year End at Year End/(1)/
--------------------------------------------------------------------------------
Name Exercisable Unexercisable Exercisable Unexercisable
-----------------------------------------------------------------------------------------------------

---------------------------------------- --------------------
Erroll B. Davis, Jr. 264,715 261,385 $0 $0
-----------------------------------------------------------------------------------------------------
---------------------------------------- --------------------
William D. Harvey 64,235 48,195 0 0
-----------------------------------------------------------------------------------------------------
---------------------------------------- --------------------
James E. Hoffman 49,785 48,195 0 0
-----------------------------------------------------------------------------------------------------
---------------------------------------- --------------------
Eliot G. Protsch 64,235 48,195 0 0
-----------------------------------------------------------------------------------------------------
Thomas M. Walker 48,322 46,432 0 0

/(1)/Based on the closing per share price of Company common stock on Dec. 31,
2002.

LONG-TERM INCENTIVE AWARDS

The following table provides information concerning long-term incentive awards
made to the executives named below in 2002.

LONG-TERM INCENTIVE AWARDS IN 2002

-----------------------------------------------------------------------------
Estimated Future Payouts Under
Non-Stock Price-Based Plans
------------------------------
Number of Performance
Shares, or Other
Units or Period Until
Other Rights Maturation Threshold Target Maximum
Name (#)/(1)/ or Payout (#) (#) (#)
-----------------------------------------------------------------------------
Erroll B. Davis, Jr. 29,579 1/01/05 14,790 29,579 59,158
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
William D. Harvey 5,937 1/01/05 2,969 5,937 11,874
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
James E. Hoffman 5,937 1/01/05 2,969 5,937 11,874
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Eliot G. Protsch 5,937 1/01/05 2,969 5,937 11,874
-----------------------------------------------------------------------------
-----------------------------------------------------------------------------
Thomas M. Walker 5,721 1/01/05 2,861 5,721 11,442
-----------------------------------------------------------------------------

/(1)/Consists of performance shares awarded under the Company's Long-Term
Equity Incentive Plan. The payout from the performance shares is based on
two equally-weighted performance components: the Company's three-year
Total Shareowner Return (TSR) relative to an investor-owned utility peer
group, and annualized earnings per share growth versus internally set
performance hurdles contained in the Alliant Energy Strategic Plan during
the performance cycle ending Dec. 31, 2004. Payouts are subject to
modification pursuant to a performance multiplier that ranges from 0 to
2.00, and will be made in shares of Company common stock or a combination
of common stock and cash.

CERTAIN AGREEMENTS

Mr. Davis has an employment agreement with the Company, pursuant to which he
will serve as the Chairman, President and Chief Executive Officer of the
Company until the expiration of the current term of the agreement on April 21,
2004. Thereafter, the agreement will automatically renew for successive
one-year terms, unless either Mr. Davis or the Company gives prior written
notice of his or its intent to terminate the agreement. Mr. Davis will also
serve as the Chief Executive Officer and a Director of each subsidiary of the
Company during the term of his employment agreement. Pursuant to Mr. Davis'
employment agreement, he is paid an annual base salary of not less than
$450,000. Mr. Davis' current salary under his employment agreement is $685,000.
Mr. Davis also has the opportunity to earn short-term and long-term incentive
compensation (including stock options, restricted stock and other long-term
incentive compensation) and receive supplemental retirement benefits (including
continued participation in the WP&L Executive Tenure Compensation Plan) and
life insurance providing a death benefit of three times his annual salary. If
the employment of Mr. Davis is terminated without cause (as defined in the
employment agreement) or if Mr. Davis terminates his employment for good reason
(as defined in the employment agreement), the Company or its affiliates will
continue to provide the compensation and benefits called for by the employment
agreement through the end of the term of such employment agreement (with
incentive compensation based on the maximum potential awards and with any stock
compensation paid in cash), and all unvested stock compensation will vest
immediately. If Mr. Davis dies or becomes disabled, or terminates his
employment without good reason, during the term of his respective employment
agreement, the Company or its affiliates will pay to Mr. Davis or his
beneficiaries or estate all compensation earned through the date of death,
disability or such termination (including previously deferred compensation and
pro rata incentive compensation based upon the maximum potential awards). If
Mr. Davis is terminated for cause, the Company or its affiliates will pay his
base salary through the date of termination plus any previously deferred
compensation. Under Mr. Davis' employment agreement, if any payments thereunder
constitute an excess parachute payment under the Internal Revenue Code (the
"Code"), the Company will pay to Mr. Davis the amount necessary to offset the
excise tax and any applicable taxes on this additional payment.

The Company currently has in effect key executive employment and severance
agreements (the "KEESAs") with certain executive officers and key employees of
the Company (including Messrs. Davis, Harvey, Hoffman, Protsch and Walker). The
KEESAs provide that each executive officer who is a party thereto is entitled
to benefits if, within a period of up to three years (depending on which
executive is involved) after a change in control of the Company (as defined in
the KEESAs) (the "Employment Period"), the officer's employment is ended
through (a) termination by the Company, other than by reason of death or
disability or for cause (as defined in the KEESAs); or (b) termination by the
officer due to a breach of the agreement by the Company or a significant change
in the officer's responsibilities; or (c) in the case of Mr. Davis' agreement,
termination by Mr. Davis following the first anniversary of the change of
control. The benefits provided are (a) a cash termination payment of up to
three times (depending on which executive is involved) the sum of the officer's
annual salary and his or her average annual bonus during the three years before
the termination; and (b) continuation for up to the end of the Employment
Period of equivalent hospital, medical, dental, accident and life insurance
coverage as in effect at the time of termination. Each KEESA for executive
officers below the level of Executive Vice President provides that if any
portion of the benefits under the KEESA or under any other agreement for the
officer would constitute an excess parachute payment for purposes of the Code,
benefits will be reduced so that the officer will be entitled to receive $1
less than the maximum amount which he or she could receive without becoming
subject to the 20% excise tax imposed by the Code on certain excess parachute
payments, or which the Company may pay without loss of deduction under the
Code. The KEESAs for the Chief Executive Officer and the Executive Vice
Presidents (including Messrs. Davis, Harvey, Hoffman, Protsch and Walker)
provide that if any payments thereunder or otherwise constitute an excess
parachute payment, the Company will pay to the appropriate officer the amount
necessary to offset the excise tax and any additional taxes on this additional
payment. Mr. Davis' employment agreement as described above limits benefits
paid thereunder to the extent that duplicate payments would be provided to him
under his KEESA.

RETIREMENT AND EMPLOYEE BENEFIT PLANS

Alliant Energy Cash Balance Pension Plan
Salaried employees (including officers) of the Company are eligible to
participate in the Alliant Energy Cash Balance Pension Plan (the "Pension
Plan") maintained by Alliant Energy Corporate Services. The Pension Plan bases
a participant's defined benefit pension on the value of a hypothetical account
balance. For individuals participating in the Pension Plan as of Aug. 1, 1998,
a starting account balance was created equal to the present value of the
benefit accrued as of Dec. 31, 1997, under the applicable prior benefit
formula. In addition, such individuals received a special one-time transition
credit amount equal to a specified percentage varying with age multiplied by
credited service and pay. For 1998 and thereafter, a participant receives
annual credits to the account equal to 5% of base pay (including certain
incentive payments, pre-tax deferrals and other items), plus an interest credit
on all prior accruals equal to 4%, plus a potential share of the gain on the
investment return on assets in the trust investment for the year.

The life annuity payable under the Pension Plan is determined by converting the
hypothetical account balance credits into annuity form. Individuals who were
participants in the Pension Plan on Aug. 1, 1998, are in no event to receive
any less than what would have been provided under the prior formula that was
applicable to them, had it continued, if they terminate on or before Aug. 1,
2008, and do not elect to commence benefits before the age of 55.

All of the individuals listed in the Summary Compensation Table participate in
the Plan and are "grandfathered" under the applicable prior plan benefit
formula. Because their estimated benefits under the applicable prior plan
benefit formula are higher than under the Pension Plan formula, utilizing
current assumptions, their benefits would currently be determined by the
applicable prior plan benefit formula. The following tables illustrate the
estimated annual benefits payable upon retirement at age 65 under the
applicable prior plan formula based on average annual compensation and years of
service. To the extent benefits under the Plan are limited by tax law, any
excess will be paid under the Unfunded Excess Plan described below.

WP&L Plan A Prior Formula -- One of the applicable prior plan formulas provided
retirement income based on years of credited service and final average
compensation for the 36 highest consecutive months, with a reduction for Social
Security offset. The individuals listed in the Summary Compensation Table
covered by this formula are Messrs. Davis, Protsch and Harvey. The benefits
would be as follows:

WP&L Plan A Prior Plan Formula Table

Annual Benefit After Specified Years in Plan
--------------------------------------------
Average
Annual
Compensation 15 20 25 30+
------------ -------- -------- -------- --------

$ 200,000 $ 55,000 $ 73,333 $ 91,667 $110,000
300,000 82,500 110,000 137,500 165,000
400,000 110,000 146,667 183,333 220,000
500,000 137,500 183,333 229,167 275,000
600,000 165,000 220,000 275,000 330,000
700,000 192,500 256,667 320,833 385,000
800,000 220,000 293,333 366,667 440,000
900,000 247,500 330,000 412,500 495,000
1,000,000 275,000 366,667 458,333 550,000
1,100,000 302,500 403,333 504,167 605,000

Pension Plan) and are reduced by up to 50% of Social Security benefits. The
estimated benefits in the table above do not reflect the Social Security
offset. The estimated benefits are computed on a straight-life annuity basis.
Benefits will be adjusted if the employee receives one of the optional forms of
payment. Credited years of service under the Pension Plan for covered persons
named in the Summary Compensation Table are as follows: Erroll B. Davis, Jr.,
23 years; Eliot G. Protsch, 23 years; and William D. Harvey, 15 years.

IES Industries Pension Plan Prior Formula -- Another of the applicable prior
plan formulas provided retirement income based on years of service and final
average compensation for the highest consecutive 36 months out of the last 10
years of employment. The individuals listed in the Summary Compensation Table
covered by this formula are Messrs. Hoffman and Walker. The benefits would be
as follows:

IES Industries Pension Plan Prior Formula Table

Annual Benefit After Specified Years in Plan
--------------------------------------------
Average
Annual
Compensation 15 20 25 30 35
------------ -------- -------- -------- -------- --------

$200,000 $ 43,541 $ 58,056 $ 72,570 $ 87,083 $101,597
300,000 66,792 89,056 111,320 133,583 155,847
400,000 90,042 120,056 150,070 180,083 210,097
500,000 113,292 151,056 188,820 226,583 264,347
600,000 136,542 182,056 227,569 273,083 318,597

For purposes of the Pension Plan, compensation means payment for services
rendered, including vacation and sick pay, and is substantially equivalent to
the salary amounts reported in the Summary Compensation Table. Pension Plan
benefits depend upon length of Pension Plan service (up to a maximum of 35
years), age at retirement and amount of compensation (determined in accordance
with the Pension Plan). The estimated benefits are computed on a straight-life
annuity basis. Benefits will be adjusted if the employee receives one of the
optional forms of payment. Credited years of service under the Pension Plan for
covered persons named in the Summary Compensation Table are as follows: Mr.
Hoffman, seven years and Mr. Walker, six years.

Unfunded Excess Plan
Alliant Energy Corporate Services maintains an Unfunded Excess Plan that
provides funds for payment of retirement benefits above the limitations on
payments from qualified pension plans in those cases where an employee's
retirement benefits exceed the qualified plan limits. The Unfunded Excess Plan
provides an amount equal to the difference between the actual pension benefit
payable under the Pension Plan and what such pension benefit would be if
calculated without regard to any limitation imposed by the Code on pension
benefits or covered compensation.

Unfunded Executive Tenure Compensation Plan
Alliant Energy Corporate Services maintains an Unfunded Executive Tenure
Compensation Plan to provide incentive for selected key executives to remain in
the service of the Company by providing additional compensation that is payable
only if the executive remains with the Company until retirement (or other
termination if approved by the Board of Directors). In the case of the Chief
Executive Officer only, in the event that the Chief Executive Officer (a) is
terminated under his employment agreement with the Company as described above
other than for cause, death or disability (as those terms are defined in the
employment agreement); (b) terminates his employment under the employment
agreement for good reason (as such term is defined in the employment
agreement); or (c) is terminated as a result of a failure of the employment
agreement to be renewed automatically pursuant to its terms (regardless of the
reason for such non-renewal), then for purposes of the Plan, the Chief
Executive Officer shall be deemed to have retired at age 65 and shall be
entitled to benefits under the Plan. Any participant in the Plan must be
approved by the Board of Directors. Mr. Davis was the only active participant
in the Plan as of Dec. 31, 2002. The Plan provides for monthly payments to a
participant after retirement (at or after age 65, or with Board approval, prior
to age 65) for 120 months. The payments will be equal to 25% of the
participant's highest average salary for any consecutive 36-month period. If a
participant dies prior to retirement or before 120 payments have been made, the
participant's beneficiary will receive monthly payments equal to 50% of such
amount for 120 months in the case of death before retirement or, if the

participant dies after retirement, 50% of such amount for the balance of the
120 months. Annual benefits of $171,250 would be payable to Mr. Davis upon
retirement, assuming he continues in Alliant Energy Corporate Services' service
until retirement at the same salary as was in effect on Dec. 31, 2002.

Supplemental Executive Retirement Plan
The Company maintains an unfunded Supplemental Executive Retirement Plan
("SERP") to provide incentive for key executives to remain in the service of
the Company by providing additional compensation that is payable only if the
executive remains with the Company until retirement, disability or death. While
the SERP provides different levels of benefits depending on the executive
covered, this summary reflects the terms applicable to all of the individuals
listed in the Summary Compensation Table. Participants in the SERP must be
approved by the Compensation and Personnel Committee of the Board. The SERP
provides for payments of 60% of the participant's average annual earnings (base
salary and bonus) for the highest paid three years out of the last 10 years of
the participant's employment reduced by the sum of benefits payable to the
officer from the officer's defined benefit plan and the Unfunded Excess Plan.
The normal retirement date under the SERP is age 62 with at least 10 years of
service and early retirement is at age 55 with at least 10 years of service. If
a participant retires prior to age 62, the 60% payment under the SERP is
reduced by 3% per year for each year the participant's retirement date precedes
his or her normal retirement date. The actuarial reduction factor will be
waived for participants who have attained age 55 and have a minimum of 10 years
of service in a senior executive position with the Company after April 21,
1998. At the timely election of the participant, benefits under the SERP will
be made in a lump sum, in installments over a period of up to 10 years, or for
the lifetime of the participant. If the lifetime benefit is selected and the
participant dies prior to receiving 12 years of payments, payments continue to
any surviving spouse or dependent children of a deceased participant who dies
while still employed by the Company, payable for a maximum of 12 years. A
post-retirement death benefit of one times the participant's final average
earnings at the time of retirement will be paid to the designated beneficiary.
Messrs. Davis, Harvey, Hoffman, Protsch and Walker are participants in the
SERP. The following table shows the amount of retirement payments under the
SERP, assuming a minimum of 10 years of service at retirement age and payment
in the annuity form.

Supplemental Executive Retirement Plan Table

Average Annual Benefit After Specified Years in Plan
Annual -------------------------------------------
Compensation (less than)10 Years (greater than)10 Years*
------------ ------------------- -----------------------

$ 200,000 0 $120,000
300,000 0 180,000
400,000 0 240,000
500,000 0 300,000
600,000 0 360,000
700,000 0 420,000
800,000 0 480,000
900,000 0 540,000
1,000,000 0 600,000
1,100,000 0 660,000

----------
* Reduced by the sum of the benefit payable from the applicable defined benefit
pension plan and the Unfunded Excess Plan.

Key Employee Deferred Compensation Plan
The Company maintains an unfunded Key Employee Deferred Compensation Plan under
which participants may defer up to 100% of base salary, incentive compensation
and eligible SERP payments. Participants who have made the maximum allowed
contribution to the Company-sponsored 401(k) Plan may receive an additional
credit to the Deferred Compensation Plan. The credit will be equal to 50% of
the lesser of (a) the amount contributed to the 401(k) Plan plus the amount
deferred under this Plan; or (b) 6% of base salary, reduced by the amount of
any matching contributions in the 401(k) Plan. The employee may elect to have
his or her deferrals credited to an Interest Account or a

Company Stock Account. Deferrals and matching contributions to the Interest
Account receive an annual return based on the A-Utility Bond Rate with a
minimum return no less than the prime interest rate published in The Wall
Street Journal, provided that the return may not be greater than 12% or less
than 6%. Deferrals and matching contributions credited to the Company Stock
Account are treated as though invested in the common stock of the Company and
will be credited with dividends, which will be reinvested. The shares of common
stock identified as obligations under the Plan are held in a rabbi trust.
Payments from the Plan may be made in a lump sum or in annual installments for
up to 10 years at the election of the participant. Participants are selected by
the Chief Executive Officer of Alliant Energy Corporate Services. Messrs.
Davis, Harvey, Hoffman, Protsch and Walker are participants in the Plan.

REPORT OF THE COMPENSATION AND PERSONNEL
COMMITTEE ON EXECUTIVE COMPENSATION

To Our Shareowners:
The Compensation and Personnel Committee (the "Committee") of the Board of
Directors of the Company is currently comprised of four non-employee Directors.
The Committee assesses the effectiveness and competitiveness of, approves the
design of and administers executive compensation programs within a consistent
total compensation framework for the Company. The Committee also reviews and
approves all salary arrangements and other remuneration for executives,
evaluates executive performance, and considers related matters. To support it
in carrying out its mission, the Committee engages an independent consultant to
provide assistance.

The Committee is committed to implementing an overall compensation program for
executives that furthers the Company's mission. Therefore, the Committee
adheres to the following compensation policies, which are intended to
facilitate the achievement of the Company's business strategies:

. Executive management compensation (and particularly, long-term incentive
compensation) should be closely and strongly aligned with the long-term
interests of the Company's shareowners.

. Total compensation should enhance the Company's ability to attract, retain
and encourage the development of exceptionally knowledgeable and
experienced executives, upon whom, in large part, the successful operation
and management of the Company depends.

. Base salary levels should be targeted at a competitive market range of
base salaries paid to executives of comparable companies. Specifically,
the Committee targets the median (50th) percentile of base salaries paid
by a selected group of utility and general industry companies.

. Incentive compensation programs should strengthen the relationship between
pay and performance by emphasizing variable, at-risk compensation that is
consistent with meeting predetermined Company, subsidiary, business unit
and individual performance goals. In addition, the Committee targets
incentive levels at the median (50th percentile) of incentive compensation
paid by a selected group of utility and general industry companies.

Components of Compensation
The major elements of the Company's executive compensation program are base
salary, short-term (annual) incentives and long-term (equity) incentives. These
elements are addressed separately below. In setting the level for each major
component of compensation, the Committee considers all elements of an
executive's total compensation package, including employee benefit and
perquisite programs. The Committee's goal is to provide an overall compensation
package for each executive officer that is competitive to the packages offered
other similarly situated executives. The Committee has determined that total
executive compensation at target levels, including that for Mr. Davis, is in
line with competitive compensation of the comparison group of companies.

Base Salaries
The Committee annually reviews each executive's base salary. Base salaries are
targeted at a competitive market range (i.e., at the median level) when
comparing both utility and non-utility (general industry) data. The Committee
annually adjusts base salaries to recognize changes in the market, varying
levels of responsibility, prior experience and breadth of knowledge. Increases
to base salaries are driven primarily by market adjustments for a particular
salary level, which generally limits across-the-board increases. The Committee
does not consider individual performance factors in setting base salaries. The
Committee reviewed executive salaries for market comparability using utility
and general industry data contained in compensation surveys published by Edison
Electric Institute, American Gas Association and several compensation
consulting firms. Based on the foregoing and market conditions, the Committee
established the annual salary for Mr. Davis at $685,000 for the 2002 fiscal
year.

In consideration of industry conditions and Company performance, the Committee
determined that the Chief Executive Officer and the Executive Vice Presidents
would not receive a base salary increase for 2003.

Short-Term Incentives
The Company's short-term (annual) incentive program promotes the Committee's
pay-for-performance philosophy by providing executives with direct financial
incentives in the form of annual cash bonuses tied to the achievement of
Company, subsidiary, business unit and individual performance goals. Annual
bonus opportunities allow the Committee to communicate specific goals that are
of primary importance during the coming year and motivate executives to achieve
these goals. The Committee on an annual basis reviews and approves the
program's performance goals, the relative weight assigned to each goal and the
targeted and maximum award levels. A description of the short-term incentive
programs available during 2002 to executive officers follows.

Alliant Energy Corporation Management Incentive Compensation Plan -- In 2002,
the Alliant Energy Corporation Management Incentive Compensation Plan (the
"MICP") covered executives and was based on achieving annual targets in Company
performance that included earnings per share ("EPS"), safety, diversity and
environmental targets for the utility businesses, and business unit and
individual performance goals. Target and maximum bonus awards under the MICP in
2002 were set at the median of the utility and general industry market levels.
The Committee considered these targets to be achievable, but to require
above-average performance from each of the executives. The level of performance
achieved in each category determines actual payment of bonuses, as a percentage
of annual salary. Weighting factors are applied to the percentage achievement
under each category to determine overall performance. If a pre-determined EPS
target is not met, there is no bonus payment associated with the MICP. If the
threshold performance for any other performance target is not reached, there is
no bonus payment associated with that particular category. Once the designated
maximum performance is reached, there is no additional payment for performance
above the maximum level. The actual percentage of salary paid as a bonus,
within the allowable range, is equal to the weighted average percent
achievement for all the performance categories. Potential MICP awards range
from 0% to 100% of annual salary for eligible executives other than Mr. Davis.

In 2002, Mr. Davis was covered by the MICP. Awards for Mr. Davis under the MICP
in 2002 were based on corporate and strategic goal achievement in relation to
predetermined goals. For each plan year, the Committee determines the
performance apportionment for Mr. Davis. In 2002, that apportionment was 80%
for corporate performance and 20% for strategic goal performance. Company
performance is measured based on Company-wide EPS, environmental, diversity and
safety targets established at the beginning of the year. Strategic goals are
measured based on the achievement of certain specific goals, which included
strategy development and implementation, established for Mr. Davis by the
Committee. The 2002 MICP award range for Mr. Davis was from 0% to 150% of
annual salary.

Because the EPS goal was not achieved, there was no payout from the MICP for
performance for the year ended Dec. 31, 2002.

Due to industry and market conditions and the Company's performance, the
Committee determined that the Chief Executive Officer and Executive Vice
Presidents will participate in the MICP, but will not receive MICP awards, if
earned, for 2003 plan year performance.

Long-Term Incentives
The Committee strongly believes compensation for executives should include
long-term, at-risk pay to strengthen the alignment of the interests of the
shareowners and management. In this regard, the Alliant Energy Corporation
Long-Term Equity Incentive Plan and the Alliant Energy Corporation 2002 Equity
Incentive Plan each permits grants of stock options, restricted stock and
performance units/shares with respect to the Company's common stock. The
Committee believes that the incentive plans balance the Company's annual
compensation programs by emphasizing compensation based on the long-term,
successful performance of the Company from the perspective of the Company's
shareowners. A description of the long-term incentive programs available during
2002 to executive officers under the Alliant Energy Corporation Long-Term
Equity Incentive Plan and the Alliant Energy Corporation 2002 Equity Incentive
Plan is set forth below.

Alliant Energy Corporation Long-Term Incentive Program -- The Alliant Energy
Corporation Long-Term Incentive Program covered executives and consisted of the
following components in 2002: non-qualified stock options and performance
shares. Non-qualified stock options provide a reward that is directly tied to
the benefit shareowners receive from increases in the price
of the Company's common stock. The payout from the performance shares is based
on two equally-weighted performance components: the Company's three-year

total return to shareowners relative to an investor-owned utility peer group
(TSR), and annualized EPS growth versus internally set performance hurdles
contained in the Alliant Energy Strategic Plan. Thus, the two components of the
Long-Term Incentive Program (i.e., stock options and performance shares)
provide incentives for management to produce superior shareowner returns on
both an absolute and relative basis. During 2002, the Committee made a grant of
stock options and performance shares to various executive officers, including
Messrs. Davis, Harvey, Hoffman, Protsch and Walker. All option grants had per
share exercise prices equal to the fair market value of a share of Company
common stock on the day following the date the grants were approved. Options
vest on a one-third basis at the beginning of each calendar year after grant
and have a 10-year term from the date of the grant. Executives in the Alliant
Energy Corporation Long-Term Incentive Program were also granted performance
shares. Performance shares will be paid out in a combination of common stock
and cash. The award will be modified by a performance multiplier, which ranges
from 0 to 2.00 based on Company performance.

In determining actual award levels under the Alliant Energy Corporation
Long-Term Incentive Program, the Committee was primarily concerned with
providing a competitive total compensation opportunity level to officers. As
such, award levels (including awards made to Mr. Davis) were based on a
competitive analysis of similarly sized utility companies that took into
consideration the market level of long-term incentives, as well as the
competitiveness of the total compensation package. The Committee then
established award ranges and individual award levels based on responsibility
level and market competitiveness. No corporate or individual performance
measures were reviewed in connection with the awards of options and performance
shares. Award levels were targeted to the median of the range of such awards
paid by comparable companies. The Committee did not consider the amounts of
options and performance shares already outstanding or previously granted when
making awards for 2002. Mr. Davis' awards in 2002 under the Long-Term Incentive
Program are shown in the tables under "Stock Option Grants in 2002" and
"Long-Term Incentive Awards in 2002."

Due to the EPS and TSR goals not being achieved, there was no payout for the
performance share portion of the Long-Term Incentive Program's three-year cycle
that ended in Dec. 2002.

Share Ownership Guidelines
The Company has established share ownership guidelines for executive officers
as a way to better align the financial interests of its officers with those of
its shareowners. These officers are expected to make continuing progress toward
compliance with these guidelines and to comply fully with the guidelines. In
2002, the Committee initiated a review of the share ownership guidelines and
has modified the ownership guidelines to target a specified number of shares
rather than a multiple of base salary. Under these guidelines, the requisite
ownership numbers are 85,000 shares for the Chief Executive Officer, 36,000
shares for Executive Vice Presidents, and 12,000 shares for Vice Presidents.
Attainment of these ownership levels will be reviewed regularly by the
Committee. The Chief Executive Officer retains the right to grant special
dispensation for hardship, promotions or new hires.

Policy with Respect to the $1 Million Deduction Limit
Section 162(m) of the Code generally limits the corporate deduction for
compensation paid to executive officers named in the proxy statement to $1
million unless such compensation is based upon performance objectives meeting
certain regulatory criteria or is otherwise excluded from the limitation. Based
on the Committee's commitment to link compensation with performance as
described in this report, the Committee intends to qualify future compensation
paid to the Company's executive officers for deductibility by the Company under
Section 162(m) except in limited appropriate circumstances.

Conclusion
The Committee believes the existing executive compensation policies and
programs provide an appropriate level of competitive compensation for the
Company's executives. In addition, the Committee believes that the long- and
short-term performance incentives effectively align the interests of executives
and shareowners toward a successful future for the Company.

COMPENSATION AND PERSONNEL COMMITTEE
Judith D. Pyle (Chairperson)
Alan B. Arends
Jack B. Evans
David A. Perdue

REPORT OF THE AUDIT COMMITTEE

To Our Shareowners:
The Audit Committee (the "Committee") of the Board of Directors of the Company
is composed of five independent Directors, each of whom is independent as
defined in the New York Stock Exchange's listing standards. The Committee
operates under a written charter adopted by the Board of Directors. The Audit
Committee Charter of the Company as amended by the Board of Directors on March
19, 2003, is attached as Appendix A to this proxy statement. Under the Charter,
among other things, the Committee is responsible for the appointment,
compensation and oversight of the Company's independent auditors.

The Company's management ("management") is responsible for the Company's
internal controls and the financial reporting process, including the system of
internal controls. The independent auditors are responsible for expressing an
opinion on the conformity of the Company's audited consolidated financial
statements with generally accepted accounting principles. The Committee has
reviewed and discussed the audited consolidated financial statements with
management and the independent auditors. The Committee has discussed with the
independent auditors matters required to be discussed by Statement on Auditing
Standards No. 61 (Communication With Audit Committees).

The Company's independent auditors have provided to the Committee the written
disclosures required by Independence Standards Board Standard No. 1
(Independence Discussions with Audit Committees), and the Committee discussed
with the independent auditors their independence. The Committee pre-approves
all audit and non-audit services to be provided by the independent auditors.

The fees the Company paid to its independent auditors for 2001 and 2002 were as
follows:

2001 2002
---------- ----------

Audit Fees.............. $1,194,000 $2,843,000/(1)/
Audit Related Fees/ (2)/ 146,000 19,000
Tax Fees /(3)/.......... 491,000 1,125,000
All Other Fees /(4)/.... 36,000 297,000

----------
/(1)/ Includes approximately $1.4 million for 2000 and 2001 re-audit fees.

/(2)/ Audit Related Fees consisted of the fees billed for employee benefits
plan audits, attest services required by statute or regulations and, in 2001
only, due diligence related to acquisitions and consultations concerning
financial accounting and reporting not classified as audit fees.

/(3)/ Tax Fees consisted of the fees billed for professional services rendered
for tax compliance, tax advice and tax planning, including all services
performed by the professional staff in the independent auditors' tax division,
except those rendered in connection with the audit.

/(4)/ All Other Fees in 2001 and 2002 consisted of fees for generation strategy
consultation; in 2001 only, a human resource project; and in 2002 only, the
license fee for a tax software product.

The Committee discussed with the Company's internal and independent auditors
the overall scopes and plans for their respective audits. The Committee meets
with the internal and independent auditors, with and without management
present, to discuss the results of their examinations, the evaluation of the
Company's internal controls and overall quality of the Company's financial
reporting.

Based on the Committee's reviews and discussions with management, the internal
auditors and the independent auditors referred to above, the Committee
recommended to the Board of Directors that the audited consolidated financial
statements be included in the Company's Annual Report on Form 10-K for the year
ended Dec. 31, 2002, for filing with the SEC.

AUDIT COMMITTEE
Jack B. Evans (Chairperson)
Alan B. Arends
Katharine C. Lyall
Singleton B. McAllister
David A. Perdue

COMPARISON OF FIVE-YEAR CUMULATIVE TOTAL RETURN

Rules of the SEC require that the Company show a graphical comparison of the
total return on its common stock for the last five fiscal years with the total
returns of a broad market index and a more narrowly focused industry or group
index. (Total return is defined as the return on common stock including
dividends and stock price appreciation, assuming reinvestment of dividends.)
The Company has selected the Standard & Poor's (S&P) 500 Index for the broad
market index and the S&P 500 Utilities Index as the industry index. These
indices were selected because of their broad availability and recognition. The
following chart compares the total return of an investment of $100 in Company
common stock on Dec. 31, 1997, with like returns for the S&P 500 and S&P 500
Utilities indices. Pursuant to SEC rules, the table reflects only information
regarding the common stock of the Company.

[CHART]

Cumulative Total Shareholder Return
Alliant Energy Corporation

Alliant
Energy S&P S&P
Corporation Utilities 500
(LNT) Index Index
1997 $100.00 $100.00 $100.00
1998 103.81 114.84 128.58
1999 94.90 104.29 155.63
2000 117.78 163.93 141.46
2001 119.88 114.04 124.65
2002 71.56 79.83 97.10

Dec. 31,

------- ------- ------- ------- ------- ------
1997 1998 1999 2000 2001 2002
-------------------------------- ------- ------- ------- ------- ------- ------
Alliant Energy Corporation (LNT) $100.00 $103.81 $ 94.90 $117.78 $119.88 $71.56
-------------------------------- ------- ------- ------- ------- ------- ------
S&P Utilities Index 100.00 114.84 104.29 163.93 114.04 79.83
-------------------------------- ------- ------- ------- ------- ------- ------
S&P 500 Index 100.00 128.58 155.63 141.46 124.65 97.10

SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

Section 16(a) of the Securities Exchange Act of 1934 requires the Company's
Directors and certain officers to file reports of ownership and changes in
ownership of the Company's common stock and subsidiary preferred stock with the
SEC and the New York Stock Exchange. As a matter of practice, the Company's
Shareowner Services Department assists the Company's reporting persons in
preparing initial reports of ownership and reports of changes in ownership and
files those reports on their behalf. The Company is required to disclose in
this proxy statement the failure of reporting persons to file these reports
when due. Based on the written representations of the reporting persons and on
copies of the reports filed with the SEC, the Company believes that all
reporting persons of the Company satisfied these filing requirements except as
follows. The following officers failed to file a Form 5 for one transaction in
2002 and had one late Form 4 for one transaction in Jan. 2003: Thomas L. Aller,
Charles Castine, Dundeana K. Doyle, William D. Harvey, James E. Hoffman, John
E. Kratchmer, Daniel L. Mineck, John K. Peterson, Eliot G. Protsch, Barbara J.
Swan, Thomas M. Walker, Pamela J. Wegner and Kim K. Zuhlke.

The following officers had one late Form 4 for one transaction in 2003: F. J.
Buri, Vern A. Gebhart, Jr., Michael P. Maley, Joseph E. Shefchek and Barbara A.
Siehr. Thomas L. Hanson, an officer of the Company, had one late Form 4 for one
transaction in 2002 and one late Form 4 for one transaction in Jan. 2003.
Edward M. Gleason, a former officer of the Company, failed to file a Form 5 for
one transaction in 2002. The following Directors failed to file a Form 5 for
one transaction in 2002: Alan B. Arends, Joyce L. Hanes, David A. Perdue,
Robert W. Schlutz and Anthony R. Weiler. Jack B. Evans, a Director of the
Company, failed to file a Form 5 for one transaction in 2002 and had one late
Form 4 for one transaction in 2002. Erroll B. Davis, Jr., a Director and
officer of the Company, failed to file a Form 5 for one transaction in 2002,
had one late Form 4 for one transaction in 2002 and had one late Form 4 for one
transaction in Jan. 2003.

By Order of the Board of Directors,

/s/ F. J. Buri

F. J. Buri
Corporate Secretary

APPENDIX A--AUDIT COMMITTEE CHARTER

Purposes and Role of Committee
The purposes of the Audit Committee (the "Committee") of the Board of Directors
(the "Board") of Alliant Energy Corporation (the "Company") are to: (1) assist
Board oversight of (a) the integrity of the Company's financial statements, (b)
the Company's compliance with legal and regulatory requirements, (c) the
independent auditors' qualifications and independence, and (d) the performance
of the Company's internal audit function and independent auditors; and (2)
prepare the report that Securities and Exchange Commission ("Commission") rules
require to be included in the Company's annual proxy statement.

The role of the Committee is oversight. Management and the internal auditing
department are responsible for maintaining and evaluating appropriate
accounting and financial reporting principles and policies and internal
controls and procedures designed to ensure compliance with accounting standards
and applicable laws and regulations. The independent auditors are responsible
for auditing the financial statements and assessing the Company's internal
controls.

Committee Membership
The Committee shall consist of three or more members of the Board, each of whom
satisfies the requirements for independence and experience under Section
10A(m)(3) of the Securities Exchange Act of 1934 (the "Exchange Act"),
Commission rules and the listing standards of the New York Stock Exchange (the
"NYSE"). The Board will endeavor to ensure that at least one Committee member
shall qualify as an "audit committee financial expert" as defined by SEC rules.
Committee members may not serve on audit committees of more than two other
public companies. Committee members shall serve at the pleasure of the Board
and for such term or terms as the Board may determine.

Committee Structure and Operations
The Board shall designate one member of the Committee as its Chair. The
Committee shall meet in formal session at least three times each year and, in
addition, hold quarterly meetings with the independent auditors and management
to discuss the annual audited financial statements and the quarterly earnings
releases. Additional meetings shall be held when deemed necessary or desirable
by a majority of the Committee or its Chair. The Committee will meet
periodically in executive session without management present.

A majority of the Committee members currently holding office constitutes a
quorum for the transaction of business. The Committee may take action only upon
the affirmative vote of a majority of the Committee members present at a duly
held meeting. The Committee may meet in person or telephonically, and may act
by unanimous written consent. The Committee may invite such members of
management to its meetings as it deems desirable or appropriate.

Committee Duties
The duties of the Committee are to:

1. Be directly responsible for the appointment (including the sole
authority to approve all audit engagement fees and terms, as well as
significant non-audit engagements), termination, compensation and
oversight of the Company's independent auditors (including resolution of
disagreements between management and the independent auditors regarding
financial reporting) for the purpose of preparing or issuing an audit
report or related work. The independent auditors must report directly to
the Committee.

2. Pre-approve all audit services and permitted non-audit services to be
performed by the independent auditors, subject to the de minimus
exceptions for non-audit services described in Section 10A(i)(1)(B) of
the Exchange Act that are approved by the Committee prior to the
completion of the audit. The Committee may delegate authority to grant
pre-approvals of audit services and permitted non-audit services to
subcommittees consisting of one or more of its members, provided that
decisions of such subcommittee to grant pre-approvals shall be presented
to the full Committee at its next scheduled meeting.

A-1

3. Review with the independent auditors the scope of the prospective audit,
the estimated fees therefore and such other matters pertaining to such
audit as the Committee may deem appropriate. Receive copies of the
annual comments from the independent auditors on accounting procedures
and systems of control. Recommend to the Board the acceptance of such
audits that are accompanied by certification.

4. Review and discuss with management and the independent auditors, before
filing with the Commission, the annual audited financial statements and
quarterly financial statements, including the Company's disclosures
under "Management's Discussion and Analysis of Financial Condition and
Results of Operations," and recommend to the Board whether the audited
financial statements should be included in the Company's Form 10-K.

5. Discuss with management and the independent auditors the Company's
earnings press releases (including the use of "pro forma" or "adjusted"
non-GAAP information), as well as financial information and earnings
guidance provided to analysts and rating agencies.

6. Discuss with management, the internal auditing department and the
independent auditors: (1) major issues regarding accounting principles
and financial statement presentations, including any significant changes
in the Company's selection or application of accounting principles, and
major issues as to the adequacy of the Company's internal controls and
any special audit steps adopted in light of material control
deficiencies; (2) analyses prepared by management and/or the independent
auditors setting forth significant financial reporting issues and
judgments made in connection with the preparation of the financial
statements, including analyses of the effects of alternative GAAP
methods on the financial statements; (3) the effect of regulatory and
accounting initiatives, as well as off-balance sheet structures, on the
financial statements of the Company.

7. Review and discuss quarterly reports from the independent auditors on:
all critical accounting policies and practices to be used; all
alternative treatments of financial information within GAAP that have
been discussed with management, ramifications of the use of such
alternative disclosures and treatments and the preferred treatment by
the independent auditors; other material written communications between
the independent auditors and management, such as any management letter
or schedule of unadjusted differences.

8. Review and discuss with the independent auditors the matters required to
be discussed by Statement on Auditing Standards No. 61 relating to the
conduct of the audit, including any audit problems or difficulties and
management's response, any restrictions on the scope of activities or
access to requested information, and any significant disagreements with
management. The review shall include a discussion of the
responsibilities, budget and staffing of the Company's internal audit
function.

9. Review the action taken by management on the internal auditors' and
independent auditors' recommendations.

10.Review with the senior internal audit executive the annual internal
audit plan and scope of internal audits.

11.Make or cause to be made, from time to time, such other examinations or
reviews as the Committee may deem advisable with respect to the adequacy
of the systems of internal controls and accounting practices of the
Company and its subsidiaries and with respect to current accounting
trends and developments, and take such action with respect thereto as
may be deemed appropriate.

12.Review the appointment, reassignment and replacement of the senior
internal audit executive.

13.Set clear policies for hiring by the Company of employees or former
employees of the independent auditors.

14.Meet privately, on a periodic basis, with the independent auditors, the
internal auditors and members of management as appropriate.

15.Review disclosures made to the Committee by the Company's Chief
Executive Officer and Chief Financial Officer during their certification
process for the Form 10-K and Form 10-Q about any significant
deficiencies in the design or operation of internal controls or material
weaknesses therein and any fraud involving management or other employees
who have a significant role in the Company's internal controls.

A-2

16.Review with management, the independent auditors and the senior internal
audit executive the adequacy of, and any significant changes in, the
internal controls; the accounting policies, procedures or practices of
the Company and its subsidiaries; and compliance with corporate
policies, directives and applicable laws.

17.Annually receive from and discuss with the independent auditors a
written statement delineating all relationships between the auditors and
the Company that may have a bearing on the auditors' independence.

18.Obtain and review, at least annually, a report by the independent
auditors describing: the independent auditors' internal quality-control
procedures; any material issues raised by the most recent internal
quality-control review, or peer review, of the firm, or by any inquiry
or investigation by governmental or professional authorities, within the
preceding five years, respecting one or more independent audits carried
out by the firm, and any steps taken to deal with any such issues; and
(to assess the auditors' independence) all relationships between the
independent auditors and the Company. Evaluate the qualifications,
performance and independence of the independent auditors taking into
account the opinions of management and the internal auditors. The
Committee shall present its conclusions with respect to the independent
auditors to the Board.

19.Review and evaluate the lead partner of the independent auditors.

20.Ensure the rotation of audit partners as required by Commission rules.
Consider whether, in order to ensure continuing auditor independence,
there should be regular rotation of the audit firm itself.

21.Establish procedures for the receipt and handling of complaints received
by the Company regarding accounting, internal accounting controls, or
auditing matters; and the confidential, anonymous submission by
employees of the Company and its affiliates of concerns regarding
questionable accounting, internal control or auditing matters.

22.Review the status of compliance with laws, regulations, and internal
procedures, contingent liabilities and risks that may be material to the
Company, the scope and status of systems designed to ensure Company
compliance with laws, regulations and internal procedures.

23.Discuss with management the Company's policies with respect to risk
assessment and risk management, the Company's major financial risk
exposures and the steps management has taken to monitor and control such
exposures.

24.Conduct or authorize investigations into any matters within the
Committee's scope of responsibility, consistent with procedures to be
adopted by the Committee.

25.As appropriate, obtain advice and assistance from outside legal,
accounting or other advisors.

26.Review and assess the adequacy of this charter at least annually, and
recommend any amendments it deems appropriate to the Board for approval.

Committee Reports
1. Report to the Board on a regular basis on the activities of the
Committee. This report shall include a review of any issues that arise
with respect to the quality or integrity of the Company's financial
statements, the Company's compliance with legal or regulatory
requirements, the performance and independence of the Company's
independent auditors, or the performance of the internal audit function.

2. Conduct, and present to the Board, an annual performance evaluation of
the Committee, which shall assess the performance of the Committee with
respect to the duties and responsibilities of the Committee as set forth
in this charter.

3. Report on matters required by the rules of the Commission to be
disclosed in the Company's annual proxy statement.

Resources and Authority of the Committee
The Committee shall have the authority, as it deems necessary to carry out its
duties, to retain, discharge and approve fees and other terms for retention of
its own independent experts in accounting and auditing, legal counsel and other
independent experts or advisors. The Company shall provide for appropriate
funding, as determined by the

A-3

Committee, for payment of compensation to the independent auditors for the
purpose of rendering or issuing an audit report or related work and to any
experts or advisors employed by the Committee. The Committee may direct any
officer or employee of the Company or request any employee of the Company's
independent auditors, outside legal counsel or other consultants or advisors to
attend a Committee meeting or meet with any Committee members.

A-4

[ALLIANT ENERGY LOGO]

[LOGO] ALLIANT
ENERGY

Shareowner Services
P.O. Box 2568
Madison, WI 53701-2568
1-800-356-5343

Vote By Telephone

Have this form available when you call the Toll-Free number 1-800-542-1160 using
a touch-tone telephone. You will be prompted to enter your Control Number and
then you can follow the simple prompts that will be presented to you to record
your vote.

Vote by Internet

Have this form available when you access the website http://www.votefast.com.
You will be prompted to enter your Control Number and then you can follow the
simple prompts that will be presented to you to record your vote.

Vote by Mail

Please mark, sign and date the card below and return it in the postage-paid
envelope provided or return it to: Corporate Election Services, PO Box 1150,
Pittsburgh, PA 15230.

Vote by Telephone Vote by Internet Vote by Mail
Call Toll-Free using a Access the Website and Return your proxy
touch-tone telephone: cast your vote: card in the postage-paid
1-800-542-1160 http://www.votefast.com envelope provided.

Vote 24 hours a day, 7 days a week!
Your telephone or Internet vote must be received by 11:59 p.m. Eastern Daylight
Time on May 27, 2003 to be counted in the final tabulation.

Your Control Number is:

. Please fold and detach card at perforation before mailing. .
--------------------------------------------------------------------------------
Alliant Energy Corporation P.O. Box 2568 Madison WI 53701

This proxy, when properly executed will be voted in the manner directed herein
by the shareowner. If no direction is made, the proxies will vote as recommended
by the Board of Directors.

The Board of Directors recommends a vote "FOR" all listed director nominees.

1. ELECTION OF DIRECTORS

* To withhold authority to vote for
Nominees for terms ending in 2006: (01) Erroll B. Davis, Jr. [_] FOR ALL any individual nominee, strike a line
(02) Robert W. Schlutz [_] WITHHOLD FOR ALL through the nominee's name in the
(03) Wayne H. Stoppelmoor [_] FOR ALL EXCEPT (*) list to the left and mark an (X) in
the "For All Except" box.

[_] I (we) will attend the annual meeting in Madison, WI. Registration is
required.

[_] I (we) consent to access future notices of annual meetings, proxy statements
and annual reports electronically through the Internet, instead of receiving
these materials by mail.

________________________________________________________________________________
Signature Date

________________________________________________________________________________
Signature Date
Please date and sign your names(s) exactly as shown herein and mail promptly in
the enclosed envelope. When signing as attorney, executor, administrator,
trustee or guardian, please give your full title as such. In case of Joint
Holders, all should sign.

ADMISSION TICKET

Please bring this ticket to the Annual Meeting.
It will expedite your admittance when presented upon your arrival.

ALLIANT ENERGY CORPORATION

2003 Annual Meeting of Shareowners

Wednesday, May 28, 2003, at 1:00 p.m. (central standard time)
Alliant Energy Center
Exhibition Hall
1919 Alliant Energy Center Way
Madison, WI

Registration Begins at 11:30 a.m. Meeting Begins at 1:00 P.M.
Please be prepared to show picture ID.

--------------------------------------------------------------------------------
. Please fold and detach admission ticket at perforation. .

ELECTRONIC DELIVERY OF FUTURE DOCUMENTS NOW AVAILABLE

You have the option to have electronic delivery of our future shareowner
communications (e.g. annual reports, proxy statements) through the Internet,
instead of receiving those documents in print. Participation is completely
voluntary. If you give your consent, in the future, you will receive a
notification that will contain the Internet location where the material is
available. Our material will be presented in PDF format. There is no cost to you
for this service other than any charges you may incur from your Internet
provider, telephone and/or cable company. Once you give your consent, it will
remain in effect until you inform us otherwise. You may revoke your consent at
any time after you give it by notifying Alliant Energy, Shareowner Services.

To give your consent, follow the prompts when you vote by telephone or over the
Internet or check the appropriate box located at the bottom of the attached
proxy card when you vote by mail.

. Please fold and detach card at perforation before mailing. .
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Alliant Energy Corporation

Shareowner Services
P.O. Box 2568
Madison WI 53701
1-800-356-5343

This proxy is solicited on behalf of the Board of Directors of Alliant Energy
Corporation.

The undersigned appoints Erroll B. Davis, Jr. and F. J. Buri, or either of them,
attorneys and proxies with the power of substitution to vote all shares of stock
of Alliant Energy Corporation (the "Company"), held of record in the name of the
undersigned (including any shares held or credited to the undersigned's account
under the Company's Shareowner Direct Plan and IES Employee Stock Ownership
Plan) at the close of business on April 8, 2003, at the Annual Meeting of
Shareowners of the Company to be held at the Alliant Energy Center, Madison, WI
on May 28, 2003 at 1:00 p.m., and at all adjournments thereof, upon all matters
that properly come before the meeting, including the matters described in the
Company's Notice of Annual Meeting of Shareowners dated April 14, 2003 and
accompanying Proxy Statement, subject to any directions indicated on the reverse
side of this card.