As filed March 22, 2002)

                                                               File No. 70-10052


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

                                   FORM U-1/A

                                 Amendment No. 1
                                       to
                           APPLICATION OR DECLARATION
                                    UNDER THE
                   PUBLIC UTILITY HOLDING COMPANY ACT OF 1935

                           ALLIANT ENERGY CORPORATION
                     ALLIANT ENERGY CORPORATE SERVICES, INC.
                         ALLIANT ENERGY RESOURCES, INC.
                                  ENERGYS, INC.
                         ALLIANT ENERGY GENERATION, INC.
                          HEARTLAND ENERGY GROUP, INC.
                         HEARTLAND ENERGY SERVICES, INC.
                           222 West Washington Avenue
                            Madison, Wisconsin 53703

                       INTERSTATE POWER AND LIGHT COMPANY
                       ALLIANT ENERGY TRANSPORTATION, INC.
                        ALLIANT ENERGY INVESTMENTS, INC.
                         IOWA LAND AND BUILDING COMPANY
                       ALLIANT ENERGY INTERNATIONAL, INC.
                   ALLIANT ENERGY INTEGRATED SERVICES COMPANY
            ALLIANT ENERGY INTEGRATED SERVICES-ENERGY MANAGEMENT LLC
             ALLIANT ENERGY INTEGRATED SERVICES-ENERGY SOLUTIONS LLC
                         IOWA LAND AND BUILDING COMPANY
                        PRAIRIE RIDGE BUSINESS PARK, L.C.
                             TRANSFER SERVICES, INC.
                           WILLIAMS BULK TRANSFER INC.
                                  Alliant Tower
                              200 First Street S.E.
                            Cedar Rapids, Iowa 52401

                       ALLIANT ENERGY FIELD SERVICES, LLC
                               5033 A Tangle Lane


                              Houston, Texas 77056



                   CEDAR RAPIDS AND IOWA CITY RAILWAY COMPANY
                              2330 12th Street, SW
                            Cedar Rapids, Iowa 52404

                               COGENEX CORPORATION
                     Boott Mills South, 100 Foot of John St.
                           Lowell, Massachusetts 01852

                        ENERGY PERFORMANCE SERVICES, INC.
                      INDUSTRIAL ENERGY APPLICATIONS, INC.
                         201 Third Avenue SE, Suite 300
                            Cedar Rapids, Iowa 52406

                           HEARTLAND PROPERTIES, INC.
                      CAPITAL SQUARE FINANCIAL CORPORATION
                            122 W. Washington Avenue
                            Madison, Wisconsin 53703

                            IEI BARGE SERVICES, INC.
                                18525 Hwy 20 West
                          East Dubuque, Illinois 61025

                  INDUSTRIAL ENERGY APPLICATIONS DELAWARE, INC.
                             5925 Dry Creek Lane, NE
                            Cedar Rapids, Iowa 52402

                                    RMT, INC.
                               744 Heartland Trail
                            Madison, Wisconsin 53717

                           SCHEDIN & ASSOCIATES, INC.
                              920 Plymouth Building
                              12 South Sixth Street

                          Minneapolis, Minnesota 55401
                           SVBK CONSULTING GROUP, INC.
                          37 N. Orange Ave., Suite 710
                             Orlando, Florida 32801

                          WHITING PETROLEUM CORPORATION
                          Mile High Center, Suite 2300
                                  1700 Broadway
                             Denver, Colorado 80290

                  (Names of companies filing this statement and
                    addresses of principal executive offices)


                                       2



               ---------------------------------------------------

                           ALLIANT ENERGY CORPORATION

                 (Name of top registered holding company parent)

              ----------------------------------------------------

                                Edward M. Gleason
                         Vice President - Treasurer and
                               Corporate Secretary
                           Alliant Energy Corporation
                           222 West Washington Avenue
                          Madison, Wisconsin 53703-0192

                     (Name and address of agent for service)
              ----------------------------------------------------

      The Commission is requested to send copies of all notices, orders and
      communications in connection with this Application or Declaration to:

      Barbara J. Swan, General Counsel      William T. Baker, Jr., Esq.
         Alliant Energy Corporation           Thelen Reid & Priest LLP
         222 West Washington Avenue             40 West 57th Street
       Madison, Wisconsin 53703-0192          New York, New York 10019


                                       3



          The Application or Declaration filed in this proceeding on
February 11, 2002 is hereby amended and restated in its entirety to read as
follows:

ITEM 1.   DESCRIPTION OF PROPOSED TRANSACTION.
          ------------------------------------

          A.  Background. Alliant Energy Corporation ("Alliant Energy") is a
registered holding company under the Public Utility Holding Company Act of 1935
(the "Act"). Its direct wholly-owned public utility subsidiaries are: Interstate
Power and Light Company (formerly IES Utilities Inc.)(1) ("IP&L") and Wisconsin
Power and Light Company ("WP&L").(2) These companies provide electric and gas
utility service to customers in parts of Wisconsin, Iowa, Minnesota and
Illinois.

          All of the other applicants named herein (that is, the applicants
other than Alliant Energy and IP&L) are non-utility subsidiaries that, with one
exception (which is noted below), are directly or indirectly wholly-owned by
Alliant Energy. They are more particularly described as follows:

          Alliant Energy Corporate Services, Inc. ("Alliant Services"), a
subsidiary service company, and Alliant Energy Resources, Inc. ("AER"), which
serves as the non-utility holding company for substantially all of Alliant
Energy's non-utility investments and subsidiaries, are direct subsidiaries of
Alliant Energy.

          The applicants include seven direct subsidiaries of AER, as follows:

          1.  Alliant Energy Integrated Services Company ("Integrated
Services"), which directly and through subsidiaries of its own, provides
environmental consulting and engineering services, produces and sells steam, and
provides energy-management services, including energy performance testing.
Twelve of Integrated Services' subsidiaries are named applicants herein:
Industrial Energy Applications, Inc., Heartland Energy Group, Inc., RMT, Inc.,
Alliant Energy Integrated Services - Energy Solutions LLC, Alliant Energy
Integrated Services - Energy Management LLC, Cogenex Corporation, Energy
Performance Services, Inc., Energys, Inc., Alliant Energy Field Services, LLC,
Industrial Energy Applications Delaware, Inc., Schedin & Associates, Inc., and
SVBK Consulting Group, Inc.

          2.  Alliant Energy Investments, Inc. ("Alliant Energy Investments"), a
non-utility holding company that engages through subsidiaries in, among other

-------------------
1     By order dated October 24, 2001 (Holding Co. Act Release No. 27456), the
      Commission approved the merger of Interstate Power Company ("IPC"), which,
      at that time, was also a direct wholly-owned subsidiary of Alliant Energy,
      and IES Utilities Inc. ("IES"), with IES as the surviving company. The
      merger of IPC into IES was effective as of January 1, 2002, and, in
      connection therewith, IES changed its name to Interstate Power and Light
      Company.

2     WP&L owns all of the issued and outstanding common stock of South Beloit
      Water, Gas & Electric Company.


                                       4



businesses, the development, ownership and management of investments in
affordable multi-unit housing properties, holding real estate for future
development of utility-related assets, and other passive investments in land.
Four of Alliant Energy Investments' subsidiaries are named applicants herein:
Heartland Properties, Inc., Heartland Energy Services, Inc., Iowa Land and
Building Company, and Prairie Ridge Business Park, L.C. (Note: Prairie Ridge
Business Park, L.C. is a 70% owned subsidiary. The remaining interest is held by
an unaffiliated third party.)

          3.  Alliant Energy Transportation, Inc. ("Alliant Energy
Transportation"), a non-utility holding company that engages through
subsidiaries in rail transportation, river barge terminal and hauling
activities, and related warehousing activities. Four subsidiaries of Alliant
Energy Transportation are named applicants herein: Transfer Services, Inc.,
Cedar Rapids and Iowa City Railway Corporation, Williams Bulk Transfer Inc., and
IEI Barge Services, Inc.

          4.  Capital Square Financial Corporation, which provides various
financial services, including the origination and sale of mortgages for
tax-advantaged affordable housing.

          5.  Alliant Energy Generation, Inc., which is an intermediate
subsidiary formed to develop and invest in "exempt wholesale generators"
("EWGs"), as defined under Section 32 of the Act, and other unregulated domestic
generation projects.

          6.  Alliant Energy International, Inc., which develops and holds
investments in "foreign utility companies" ("FUCOs"), as defined under
Section 33 of the Act.

          7.  Whiting Petroleum Corporation, which directly and through
investments in partnerships engages in oil and gas development and production.

          AER and its direct and indirect non-utility subsidiaries named above
are herein referred to as the "Non-Utility Subsidiaries."

          B.  Current Short-term Debt/Money Pool Authorization. By order dated
December 18, 1998 in File No. 70-9317 (Holding Co. Act Release No. 26956), as
modified and extended by order dated December 15, 2000 (Holding Co. Act Release
No. 27304) (as so modified and extended, the "Current Money Pool Order"),
Alliant Energy is authorized to issue notes and/or commercial paper from time to
time through June 30, 2004, and to fund separate money pools for intrasystem
borrowings by certain of its utility subsidiaries and Alliant Services and by
the Non-Utility Subsidiaries. Specifically, Alliant Energy is authorized to
issue and sell notes and/or commercial paper in an aggregate principal amount at
any time outstanding not to exceed $1 billion and to utilize the proceeds of
such borrowings to make loans through the system utility money pool ("Utility
Money Pool") to IP&L, WP&L and Alliant Services in an aggregate amount not to
exceed $475 million in 2001 and $525 million through the remainder of the
authorization period, and for other corporate purposes, including, among others,
funding of temporary investments in EWGs and FUCOs. At December 31, 2001,
Alliant Energy had issued and outstanding $68.4 million of commercial paper
notes.


                                       5



          Alliant Energy is also authorized under the Current Money Pool Order
to provide guarantees or enter into expense agreements or otherwise provide
credit support in an amount not to exceed $600 million at any time outstanding
in order to support a separate commercial paper program established by AER,
which is used to fund the Alliant Energy system non-utility money pool
("Non-Utility Money Pool").

          Under the terms of the Current Money Pool Order, Alliant Energy is
authorized to issue commercial paper in denominations of not less than $100,000
to dealers at rates not to exceed the rate per annum prevailing at the time of
issuance for commercial paper of comparable qualities and maturities. Alliant
Energy may also issue commercial paper to institutions if the resulting cost of
money would be equal to or less than that available from dealer-placed
commercial paper or bank borrowings. Commercial paper notes may have maturities
of up to 270 days and must be rated at least A-1 by Standard & Poor's ("S&P") or
at least P-1 by Moody's Investor Services ("Moody's"). Borrowings by Alliant
Energy from banks may bear interest at a rate no higher than the effective cost
of money for unsecured prime commercial bank loans prevailing at the date of
borrowing.

          Under the Current Money Pool Order, as modified by the Commission's
order approving the merger of IPC into IES,(3) IP&L is authorized to borrow up
to $250 million at any one time outstanding under the Utility Money Pool.
Borrowings by WP&L and Alliant Services under the Utility Money Pool are exempt
pursuant to Rule 52(a) in the case of WP&L and Rule 52(b) in the case of Alliant
Services. WP&L's participation in the Utility Money Pool as a borrower but not
as a lender has been approved by the Public Service Commission of Wisconsin
("PSCW").(4)

          At December 31, 2001, the outstanding borrowings under the Utility
Money Pool by WP&L, IP&L (IES and IPC combined) and Alliant Services were $90.8
million, $38.1 million, and $36.1 million, respectively. The effective cost of
funds borrowed under the Utility Money Pool is currently 2.87%.

          As indicated, AER has established a separate commercial paper program
and bank credit facilities totaling $600 million, which are used to fund loans
under the Non-Utility Money Pool to the participating Non-Utility Subsidiaries
(as listed in Item 1.F, below). Alliant Energy currently guarantees all
commercial paper notes issued by AER, as well as borrowings under the bank
credit facilities maintained by AER.(5) At December 31, 2001, AER had issued and
outstanding $383.6 million of commercial paper notes.


-------------------
3     See n. 1, above.
      --- -
4     WP&L is currently authorized by the PSCW to make short-term borrowings
      under the Utility Money Pool in an aggregate principal amount outstanding
      at any one time not to exceed $240 million. Under Wisconsin law, WP&L is
      prohibited from making any loan to any affiliate, including any loan of
      surplus funds through a system money pool arrangement.

5     The Commission noted in the Current Money Pool Order that Rule 52 exempts
      AER's financing arrangements that comply with its terms.



                                       6



          C.  Specific Authorizations Requested. In this Application or
Declaration, the applicants seek to restate, modify and extend their
authorization under the Current Money Pool Order for the period through December
31, 2004 ("Authorization Period"). Specifically, authorization is requested for
each of the following proposed transactions:

       1. Alliant Energy requests authority to issue and sell from time to
       time commercial paper to dealers and notes and other forms of
       short-term indebtedness to banks and other institutional lenders
       ("Short-term Debt") in an aggregate principal amount at any time
       outstanding not to exceed $1 billion (its current authorization) and to
       utilize the proceeds thereof to fund loans to IP&L and Alliant Services
       through the Utility Money Pool and to AER and the other participating
       Non-Utility Subsidiaries through the Non-Utility Money Pool, and for
       other corporate purposes, including funding of investments in EWGs and
       FUCOs. WP&L intends to terminate its participation in the Utility Money
       Pool and is therefore not an applicant in this proceeding.

       2. IP&L requests authorization to issue and sell Short-term Debt in a
       principal amount which, when added to the principal amount of any
       borrowings by IP&L under the Utility Money Pool, will not at any time
       exceed $300 million. To the extent required, the Utility Money Pool
       participants request authorization to make loans and extend credit to
       each other under the Utility Money Pool.(6)

       3. Alliant Energy seeks to have the flexibility to either guarantee
       borrowings by AER to fund the Non-Utility Money Pool, as is currently
       the case, or to make direct loans to the Non-Utility Money Pool.
       Accordingly, as an alternative to making direct loans to the
       Non-Utility Money Pool, Alliant Energy requests authorization to
       guarantee borrowings by AER in an aggregate amount not to exceed $700
       million at any time outstanding to fund loans to Non-Utility
       Subsidiaries through the Non-Utility Money Pool.(7)

       4. Alliant Energy, on behalf of itself and its participating Utility
       and Non-Utility Subsidiaries, proposes to maintain and continue the
       operation of the Utility Money Pool and the Non-Utility Money Pool,
       with certain changes described below.

          Upon the effective date of the Commission's order in this proceeding,
the applicants will relinquish their authority under the Current Money Pool
Order, as modified by the terms of the Commission's October 24, 2001 order
approving the merger of IPC into IES.


-------------------
6     Borrowings by and extensions of credit to Alliant Services under the
      Utility Money Pool to finance the existing business of Alliant Services
      will be exempt pursuant to Rules 52 and 45(b)(1).

7     The guaranty authority requested herein is in addition to the guaranty
      authority that Alliant Energy has obtained in File No. 70-9891 (Holding
      Co. Act Release No. 27448, Oct. 3, 2001).


                                       7


          D.  Reasons for Proposed Changes in Short-term Borrowing Arrangements.
Under the Current Money Pool Order, short-term borrowings and/or commercial
paper sales by Alliant Energy represent the only source of external funds that
are available for short-term borrowings by IP&L, WP&L and Alliant Services; none
of these companies currently maintains any external short-term credit
facilities, and IP&L has no authority under the Current Money Pool Order to
incur short-term indebtedness, other than through the Utility Money Pool.(8)
Until recently, Alliant Energy's commercial paper was rated A-1 by S&P and P-1
by Moody's. Thus, Alliant Energy's effective cost of funds was equal to or lower
than the effective cost of funds that any of the Utility Money Pool participants
could have obtained on its own by issuing commercial paper and other forms of
short-term notes to lenders other than Alliant Energy. Alliant Energy and the
other Utility Money Pool participants were also able to realize administrative
cost reductions by consolidating all short-term borrowing arrangements at the
Alliant Energy level. Recently, however, Alliant Energy's commercial paper was
downgraded to A-2 by S&P and to P-2 by Moody's. Under the Current Money Pool
Order, Alliant Energy is not authorized to issue commercial paper unless it is
rated at least A-1 by S&P or at least P-1 by Moody's. Thus, without the relief
requested herein, Alliant Energy is effectively foreclosed from issuing
commercial paper in amounts exceeding that permitted by Section 6(b) of the Act,
even though commercial paper rated A-2/P-2 continues to represent Alliant
Energy's lowest cost short-term borrowing option.(9)

          Furthermore, with the downgrading of its commercial paper rating,
Alliant Energy has determined that IP&L and WP&L may have the ability to issue
commercial paper or other forms of short-term debt at a lower effective cost
than Alliant Energy. Accordingly, as described below, IP&L is seeking authority
in this proceeding to issue Short-term Debt directly when such borrowings would
have a lower effective cost than borrowings under the Utility Money Pool. Also,
because of the downgrading in Alliant Energy's commercial paper, it is not
possible at the current time for WP&L to participate in the Utility Money Pool
as a borrower.(10) WP&L will therefore establish its own external short-term
funding arrangements and terminate its participation in the Utility Money
Pool.(11) Nevertheless, Alliant Energy wishes to maintain and fund two separate
money pools such that, in the event Alliant Energy's commercial paper rating is


-------------------
8     Although external borrowings by WP&L and Alliant Services would be exempt
      under Rule 52, both companies currently satisfy all of their requirements
      for short-term indebtedness through borrowings under the Utility Money
      Pool.

9     Since December 1, 2001, Alliant Energy has relied upon the exemption
      afforded by Section 6(b) of the Act to issue commercial paper.

10    As previously noted, Wisconsin law prohibits WP&L from extending credit to
      any affiliate, through a money pool or otherwise. In addition, the PSCW's
      approval for WP&L to participate in the Utility Money Pool as a borrower
      was originally conditioned upon Alliant Energy having an A-1/P-1 rating
      for its commercial paper and maintaining completely segregated external
      funding arrangements for the Utility Money Pool and the Non-Utility Money
      Pool. Since Alliant Energy's commercial paper is no longer rated A-1/P-1,
      there is no choice but to have WP&L obtain its own external sources of
      short-term debt.

11    External short-term borrowings by WP&L will be exempt under Rule 52(a) to
      the extent approved by the PSCW.


                                       8



restored to A-1/P-1, the current Utility Money Pool structure could be restored
(i.e., with WP&L as a participating Utility Money Pool borrower), subject to
receipt of any necessary regulatory approvals.

          E.  Description of Short-term Debt. Alliant Energy and IP&L propose to
issue and sell from time to time Short-term Debt in the form of commercial paper
notes, bank notes, and other forms of short-term indebtedness. All Short-term
Debt will have maturities of less than one year from the date of issuance.
Alliant Energy requests authority to issue up to $1.0 billion of Short-term Debt
at any time outstanding, and IP&L requests authorization to issue Short-term
Debt and/or incur borrowings under the Utility Money Pool in an aggregate
principal amount at any time outstanding not to exceed $300 million.

          Alliant Energy proposes to use up to $350 million of the proceeds of
Short-term Debt at any one time outstanding to make loans to IP&L and Alliant
Services through the Utility Money Pool and up to $700 million at any one time
outstanding to make loans to the Non-Utility Subsidiaries through the
Non-Utility Money Pool. IP&L also proposes to utilize proceeds of Short-term
Debt to make advances to the Utility Money Pool, but only to the extent that
such borrowing capacity is not required by IP&L in order to satisfy its own
needs.

          Commercial paper may be sold in established domestic or European
commercial paper markets. Such commercial paper would typically be sold to
dealers at the discount rate per annum prevailing at the date of issuance for
commercial paper of comparable quality and maturities sold to commercial paper
dealers generally. It is expected that the dealers acquiring such commercial
paper will reoffer it at a discount to corporate, institutional and, with
respect to European commercial paper, individual investors. It is anticipated
that such commercial paper will be reoffered to investors such as commercial
banks, insurance companies, pension funds, investment trusts, foundations,
colleges and universities, finance companies and nonfinancial corporations.
Commercial paper issued by Alliant Energy and IP&L will be rated investment
grade by S&P or Moody's.

          Alliant Energy and IP&L may also establish and maintain back-up credit
lines with banks or other institutional lenders to support their commercial
paper program(s) and other credit arrangements and/or borrowing facilities
generally available to borrowers with comparable credit ratings as they may deem
appropriate in light of their needs and existing market conditions providing for
revolving credit or other loans and having commitment periods not longer than
the Authorization Period. Only the amounts drawn and outstanding under these
agreements and facilities will be counted against the proposed limits on
Short-term Debt.

          The effective cost of money on all Short-term Debt will not exceed at
the time of issuance 300 basis points over the London Interbank Offered Rate
("LIBOR") for maturities of one year or less.


                                       9



          F. Operation of Money Pools.
             -------------------------

                  1.  Utility Money Pool. Alliant Energy, IP&L and Alliant
Services will continue to participate in the Utility Money Pool, which will be
operated and administered by Alliant Services in the same manner in which it now
is, with the exception that funds made available to the Utility Money Pool from
external sources may be derived from external borrowings by Alliant Energy or
IP&L, or both. Filed herewith as Exhibit B-1 is a copy of the proposed Amended
and Restated Utility Money Pool Agreement, which incorporates this alternative
funding option.

          Under the proposed terms of the Amended and Restated Utility Money
Pool Agreement, funds would be available from the following sources for
short-term loans to the Utility Money Pool participants (other than Alliant
Energy) from time to time: (1) surplus funds in the treasuries of any of the
Utility Money Pool participants ("Internal Funds"), and (2) proceeds received by
any of the Utility Money Pool participants from the issuance of Short-term Debt
("External Funds"), in each case to the extent permitted by applicable laws and
regulatory orders. Funds would be made available from such sources in such order
as Alliant Services, as the administrator of the Utility Money Pool, may
determine would result in a lower cost of borrowing, consistent with the
individual borrowing needs and financial standing of Utility Money Pool
participants that invest funds in the Utility Money Pool.

          Each Utility Money Pool participant that is authorized or permitted to
borrow from the Utility Money Pool would borrow pro rata from each Utility Money
Pool participant that advances funds to the Utility Money Pool in the proportion
that the total amount advanced by such participant bears to the total amount
then advanced to the Utility Money Pool by all participants. On any day when
more than one source of funds (i.e., both Internal Funds and External Funds),
with different rates of interest, are used to fund loans through the Utility
Money Pool, each borrowing participant would borrow pro rata from each such
funding source in the same proportion that the amount of funds provided by that
funding source bears to the total amount of funds advanced to the Utility Money
Pool.

          The cost of compensating balances, if any, and fees paid to banks to
maintain credit lines and accounts by Alliant Energy or IP&L that are used to
fund loans to the Utility Money Pool would initially be paid by the party
maintaining such credit lines and accounts. These costs would be retroactively
allocated every month among the Utility Money Pool borrowers in proportion to
each such borrowers' estimated peak short-term borrowing requirements.

          The daily outstanding balance of all loans to the Utility Money Pool
participants shall accrue interest as follows: (a) if only Internal Funds
comprise the daily outstanding balance of all loans outstanding during a
calendar month, the interest rate applicable to such daily balances shall be the
average for the month of the CD yield equivalent of the 30-day Federal Reserve
"AA" Industrial Commercial Paper Composite Rate (the daily rate, "Composite,"
and the monthly average of such Composite, the "Average Composite"), or, if no
such Composite was established for that particular day, then the applicable rate
would be the Composite for the next preceding day for which such Composite was
established, and (b) if only External Funds comprise the daily outstanding


                                       10



balance of all loans outstanding during a calendar month, the interest rate
applicable to such daily outstanding balance shall be the lending participant's
cost for such External Funds or, if more than one participant had made available
External Funds at any time during the month, the applicable interest rate shall
be a composite rate, equal to the weighted average of the costs incurred by the
respective participants for such External Funds. In cases where the daily
outstanding balances of all loans outstanding at any time during the month
include both Internal Funds and External Funds, the interest rate applicable to
the daily outstanding balances for the month shall be the weighted average of
the (i) cost of all Internal Funds contributed by participants, and (ii) the
cost of all such External Funds. The interest rate paid on funds advanced to the
Utility Money Pool by any participant will be equal to the cost of borrowing
from the Utility Money Pool. That is, the applicable rate would be the Composite
rate in the case of Internal Funds, the lending company's cost of borrowing in
the case of External Funds, and a weighted average cost of funds if funds
advanced to the Utility Money Pool at any one time consist of both Internal
Funds and External Funds.

          Funds not required by the Utility Money Pool participants to make
loans (with the exception of funds required to satisfy the Utility Money Pool's
liquidity requirements) would ordinarily be invested in one or more short-term
investments, including: (i) interest-bearing accounts with banks;
(ii) obligations issued or guaranteed by the U.S. government and/or its agencies
and instrumentalities, including obligations under repurchase agreements; (iv)
commercial paper rated not less than A-1 by S&P or P-1 by Moody's, or their
equivalent by a nationally recognized rating agency; (iii) obligations issued or
guaranteed by any state or political subdivision thereof, provided that such
obligations are rated not less than "A" by a nationally recognized rating
agency; (iv) bankers' acceptances; (v) money market funds; (vi) bank
certificates of deposit; (vii) Eurodollar funds; and (viii) such other
investments as are permitted by Section 9(c) of the Act and Rule 40 thereunder.

          Any income earned on investments of surplus funds would be allocated
at the end of each calendar month among those Utility Money Pool participants
that have invested funds in accordance with the proportion that each
participant's average contribution of funds in the Utility Money Pool for the
month bears to the total amount of funds invested in the Utility Money Pool for
the month.

          Each participant receiving a loan through the Utility Money Pool would
be required to repay the principal amount of such loan, together with all
interest accrued thereon, on demand and in any event within 365 days of the date
of such loan. All loans made through the Utility Money Pool may be prepaid by
the borrower without premium or penalty and without prior notice. No loans
through the Utility Money Pool would be made to, and no borrowings through the
Utility Money Pool would be made by, Alliant Energy.

                  2.  Non-Utility Money Pool. The Non-Utility Money Pool will
continue to be operated on the same terms and conditions as the Utility Money
Pool, except that, as indicated above, instead of guaranteeing a separate
commercial paper facility maintained by AER to fund the Non-Utility Money Pool,
Alliant Energy intends for the foreseeable future to directly fund the
Non-Utility Money with up to $700 million of proceeds of commercial paper and


                                       11



other short-term borrowings. This will enable AER to terminate its separate
commercial paper facility, thereby eliminating duplicate program costs.
Notwithstanding the foregoing, in the event that Alliant Energy subsequently
determines to restore AER's separate commercial paper facility, it seeks to have
the flexibility to guarantee borrowings by AER. Accordingly, Alliant Energy
requests authority to guarantee up to $700 million borrowings by AER in order to
fund the Non-Utility Money Pool in lieu of making direct advances to the
Non-Utility Money Pool in that amount. Filed herewith as Exhibit B-2 is a copy
of the proposed Amended and Restated Non-Utility Money Pool Agreement.

          The interest rates for Internal Funds and External Funds loaned
through or invested in the Non-Utility Money Pool will be determined in the same
manner as described above. All loans to, and borrowings from, the Non-Utility
Money Pool to finance the existing businesses of the Non-Utility Money Pool
participants will be exempt pursuant to the terms of Rule 52 under the Act.

          In addition to Alliant Energy and AER, the following direct and
indirect subsidiaries of AER are currently participants in the Non-Utility Money
Pool:

          Alliant Energy Field Services LLC
          Alliant Energy Generation, Inc.
          Alliant Energy Integrated Services Company
          Alliant Energy Integrated Services - Energy Management LLC Alliant
          Energy Integrated Services - Energy Solutions LLC Alliant Energy
          International, Inc.
          Alliant Energy Investments, Inc.
          Alliant Energy Transportation Inc.
          Capital Square Financial Corporation
          Cedar Rapids and Iowa City Railway Company
          Cogenex Corporation
          Energy Performance Services, Inc.
          Energys, Inc.
          Heartland Energy Group, Inc.
          Heartland Properties, Inc.
          Heartland Energy Services, Inc.
          IEI Barge Services, Inc.
          Industrial Energy Applications, Inc.
          Industrial Energy Applications Delaware Inc.
          Iowa Land and Building Company
          Prairie Ridge Business Park, L.C.
          RMT, Inc.
          Schedin & Associates, Inc.
          SVBK Consulting Group, Inc.
          Transfer Services, Inc.
          Whiting Petroleum Corporation
          Williams Bulk Transfer Inc.


                                       12



          No loans through the Non-Utility Money Pool would be made to, and no
borrowings through the Non-Utility Money Pool would be made by Alliant Energy.

          G.  Use of Proceeds. As indicated above, the proceeds of Short-term
Debt issued by Alliant Energy will be used primarily to fund loans to its
subsidiaries through the Utility and Non-Utility Money Pools, and for other
lawful corporate purposes, including temporary funding of investments in EWGs
and FUCOs and other exempt or authorized investments (e.g., "energy-related
companies" under Rule 58), subject to the limitations of Rule 53 or Rule 58, as
applicable, or the limitations imposed under any applicable order(s). The
proceeds of Short-term Debt issued by IP&L and of Money Pool borrowings by IP&L
and Alliant Services will be used for working capital, to fund capital projects,
and for other lawful corporate purposes, provided, however, that no part of the
proceeds of Short-term Debt issued by IP&L or Money Pool borrowings by IP&L or
Alliant Services will be used to make investments in any EWG or FUCO. The
proceeds of borrowings under the Non-Utility Money Pool by AER and the other
participating Non-Utility Subsidiaries will be used for working capital, to fund
capital projects, and for other lawful corporate purposes, including but not
limited to temporarily funding of investments in EWGs and FUCOs and other exempt
or authorized investments (e.g., "energy-related companies" under Rule 58),
subject to the limitations of Rule 53 or Rule 58, as applicable, or the
limitations imposed under any applicable order(s).

          H.  Reports. Alliant Services will continue to administer the Utility
and Non-Utility Money Pools and provide cash management and banking services to
the participants on an "at cost" basis. Alliant Services will prepare and file
reports pursuant to Rule 24 with respect to the external short-term financing
activity of Alliant Energy and IP&L and borrowings under the Utility Money Pool
and certificates on Form U-6B-2 pursuant to Rule 52 with respect to external
short-term financing activity of AER and borrowings under the Non-Utility Money
Pool.12 These reports will be filed within 45 days of the end of each calendar
quarter.

ITEM 2.   FEES, COMMISSIONS AND EXPENSES.
          -------------------------------

          The fees, commissions and expenses incurred or to be incurred in
connection with the transactions proposed herein are estimated at not more than
$75,000. Rating agency fees (for the commercial paper) and compensating balances
and other fees paid to banks to maintain the credit lines supporting the
commercial paper are included in the proposed limit on the effective cost of
money on Short-term Debt.


-------------------
12    In order to combine information on all Utility Money Pool activity in one
      report, it is proposed that information on borrowings by Alliant Services
      under the Utility Money Pool, although exempt pursuant to Rule 52, be
      combined with information on Utility Money Pool activity of the other
      Utility Money Pool participants on the Rule 24 reports rather than
      reported separately on Form U-6B-2.


                                       13



ITEM 3.   APPLICABLE STATUTORY PROVISIONS.
          -------------------------------

          A.  General. Sections 6(a), 7, 9(a), 10, 12, 32 and 33 of the Act and
Rules 24, 42, 43, 45 and 52 thereunder are applicable to the proposed
transactions.

          B.  Rule 53/54 Analysis. The proposed transactions are also subject to
the requirements of Rules 53 and 54. Under Rule 53, in determining whether to
approve the issue or sale of any security (including any guarantee) by a
registered holding company for the purpose of financing the acquisition of any
EWG, the Commission may not make certain adverse findings under Sections 7 and
12 of the Act if the conditions set forth in paragraphs (a), (b) and (c) of
Rule 53 are satisfied. Rule 54 provides that in determining whether to approve
the issue or sale of a security by a registered holding company for purposes
other than the acquisition of an EWG or FUCO, or other transactions by such
registered holding company or its subsidiaries other than with respect to EWGs
or FUCOs, the Commission shall not consider the effect of the capitalization or
earnings of any subsidiary which is an EWG or a FUCO upon the registered holding
company if paragraphs (a), (b) and (c) of Rule 53 are satisfied.

          Alliant Energy currently does not meet all of the conditions of
Rule 53(a). As of September 30, 2001, Alliant Energy's "aggregate investment,"
as defined in Rule 53(a)(1), in EWGs and FUCOs was approximately $588.5 million,
or approximately 72.55% of Alliant Energy's average "consolidated retained
earnings," also as defined in Rule 53(a)(1), for the four quarters ended
September 30, 2001 ($811.2 million), which exceeds the 50% "safe harbor"
limitation contained in Rule 53(a). However, by order dated October 3, 2001
(Holding Co. Act Release No. 27448), the Commission has authorized Alliant
Energy to increase its "aggregate investment" in EWGs and FUCOs to an amount
equal to 100% of Alliant Energy's average "consolidated retained earnings."
Therefore, although Alliant Energy's "aggregate investment" in EWGs and FUCOs
currently exceeds the 50% "safe harbor" limitation, this investment level is
permitted under the October 3, 2001 order.

          In any event, even taking into account the capitalization of and
earnings from EWGs and FUCOs in which Alliant Energy has an interest, there
would be no basis for withholding approval of the proposed transaction. With
regard to capitalization, since the issuance of the October 3, 2001 order, there
has been no material adverse impact on Alliant Energy's consolidated
capitalization resulting from Alliant Energy's investments in EWGs and FUCOs. On
a pro forma basis, giving effect to a sale of common stock and issuance of
long-term debt in November 2001, Alliant Energy's consolidated capitalization
consists of 45.5% equity, 46.9% long-term debt, and 7.6% short-term debt
(including current maturities of long-term debt). These ratios are within
acceptable industry ranges. The transactions proposed herein merely continue
existing short-term funding arrangements at the same authorized levels. Hence,
the proposed transactions will not have any material impact on capitalization.
Finally, since the date of the October 3, 2001 order, there has been no material
change in Alliant Energy's level of earnings from EWGs and FUCOs.

          Alliant Energy satisfies all of the other conditions of paragraphs (a)
and (b) of Rule 53. With reference to Rule 53(a)(2), Alliant Energy maintains
books and records in conformity with, and otherwise adheres to, the requirements
thereof. With reference to Rule 53(a)(3), no more than 2% of the employees of


                                       14



Alliant Energy's domestic public utility companies render services, at any one
time, directly or indirectly, to EWGs or FUCOs in which Alliant Energy directly
or indirectly holds an interest. With reference to Rule 53(a)(4), Alliant Energy
will continue to provide a copy of each application and certificate relating to
EWGs and FUCOs and relevant portions of its Form U5S to each regulator referred
to therein, and will otherwise comply with the requirements thereof concerning
the furnishing of information. With reference to Rule 53(b), none of the
circumstances enumerated in subparagraphs (1), (2) and (3) thereunder have
occurred. Finally, Rule 53(c) by its terms is inapplicable since the proposed
transaction does not involve the issue or sale of a security to finance the
acquisition of an EWG or FUCO.

ITEM 4.   REGULATORY APPROVALS.
          --------------------

          The participation by IP&L in the Utility Money Pool is subject to the
approval of Illinois Commerce Commission ("ICC") and the Minnesota Public
Utilities Commission ("MPUC"). No other state commission and no federal
commission, other than this Commission, has jurisdiction over the proposed
transactions.

ITEM 5.   PROCEDURE.
          ---------

          The Commission is requested to publish a notice under Rule 23 with
respect to the filing of this Application or Declaration as soon as practicable.
The applicants request that the Commission's order approving the proposed
transactions be issued as soon following the notice period as its rules permit.
The applicants further request that there should not be a 30-day waiting period
between issuance of the Commission's order and the date on which the order are
to become effective, hereby waive a recommended decision by a hearing officer or
any other responsible officer of the Commission, and consent that the Division
of Investment Management may assist in the preparation of the Commission's
decision and/or orders, unless the Division opposes the matters proposed herein.

ITEM 6.   EXHIBITS AND FINANCIAL STATEMENTS.
          ---------------------------------

          A.   EXHIBITS.

               A    -  None.

               B-1  -  Form of Amended and Restated Utility Money Pool
                       Agreement (including form of grid note) (Previously
                       filed).

               B-2  -  Form of Amended and Restated Non-Utility Money Pool
                       Agreement (including form of grid note) (Previously
                       filed).

               C    -  None.

               D-1  -  Application of IP&L to Illinois Commerce Commission. (To
                       be  filed by amendment).


                                       15



               D-2  -  Order of Illinois Commerce Commission. (To be filed by
                       amendment).

               D-3  -  Application of IP&L to Minnesota Public Utilities
                       Commission. (To be filed by amendment).

               D-4  -  Order of Minnesota Public Utilities Commission. (To be
                       filed by amendment).

               E    -  None.

               F    -  Opinion of Counsel.  (To be filed by amendment).

               G    -  Form of Federal Register Notice.  (Previously filed).


          B.   FINANCIAL STATEMENTS.
               --------------------

                FS-1   Consolidated Balance Sheet of Alliant Energy
                       Corporation as of September 30, 2001 (incorporated by
                       reference to the Quarterly Report on Form 10-Q of
                       Alliant Energy Corporation for the quarter ended
                       September 30, 2001) (File No. 1-9894).

                FS-2   Consolidated Statement of Income of Alliant Energy
                       Corporation for the period ended September 30, 2001
                       (incorporated by reference to the Quarterly Report on
                       Form 10-Q of Alliant Energy Corporation for the
                       quarter ended September 30, 2001) (File No. 1-9894).

                FS-3   Balance Sheet of IES Utilities Inc., as of September 30,
                       2001 (incorporated by reference to the Quarterly Report
                       on Form 10-Q of IES Utilities, Inc. for the quarter
                       ended September 30, 2001) (File No. 0-4117-1).

                FS-4   Statement of Income of IES Utilities Inc., for the period
                       ended September 30, 2001 (incorporated by reference to
                       the Quarterly Report on Form 10-Q of IES Utilities, Inc.
                       for the quarter ended September 30, 2001)
                       (File No. 0-4117-1).

                FS-5   Unaudited Pro Forma Combined Balance Sheet of Interstate
                       Power and Light Company, as of June 30, 2001
                       (incorporated by reference to Exhibit FS-5 to Amendment
                       No. 2 to Form U-1 Application/Declaration in File
                       No. 70-9837).

ITEM 7.   INFORMATION AS TO ENVIRONMENTAL EFFECTS.
          ---------------------------------------

          The matters that are the subject of this Application or Declaration do
not involve a "major federal action," nor do they "significantly affect the
quality of the human environment" as those terms are used in section 102(2)(C)


                                       16



of the National Environmental Policy Act. The transactions proposed herein will
not result in changes in the operation of the applicants that will have an
impact on the environment. The applicants are not aware of any federal agency
that has prepared or is preparing an environmental impact statement with respect
to the transactions that are the subject of this Application or Declaration.


                                       17



                                   SIGNATURES

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

                                   ALLIANT ENERGY CORPORATION
                                   INTERSTATE POWER AND LIGHT COMPANY
                                   ALLIANT ENERGY CORPORATE SERVICES, INC.
                                   ALLIANT ENERGY RESOURCES, INC.
                                   ALLIANT ENERGY GENERATION, INC.
                                   ALLIANT ENERGY INTEGRATED SERVICES, INC.
                                   ALLIANT ENERGY INTERNATIONAL, INC.
                                   ALLIANT ENERGY INVESTMENTS. INC.
                                   ALLIANT ENERGY TRANSPORTATION, INC.
                                   CEDAR RAPIDS AND IOWA CITY RAILWAY COMPANY
                                   COGENEX CORPORATION
                                   ENERGY PERFORMANCE SERVICES, INC.
                                   ENERGYS, INC.
                                   HEARTLAND ENERGY GROUP, INC.
                                   HEARTLAND ENERGY SERVICES, INC.
                                   IEI BARGE SERVICES, INC.
                                   INDUSTRIAL ENERGY APPLICATIONS, INC.
                                   INDUSTRIAL ENERGY APPLICATIONS DELAWARE, INC.
                                   IOWA LAND AND BUILDING COMPANY
                                   TRANSFER SERVICES, INC.
                                   WILLIAMS BULK TRANSFER INC.

                                   By: /s/  Edward M. Gleason
                                            -----------------
                                   Name:    Edward M. Gleason
                                   Title:   Treasurer and Secretary


                                   ALLIANT ENERGY FIELD SERVICES LLC

                                   By: /s/  Jim Overby
                                            ----------
                                   Name:    Jim Overbey
                                   Title:   Manager


                                   (signatures continued on next page)


                                       18



                                   ALLIANT ENERGY INTEGRATED SERVICES-ENERGY
                                      MANAGEMENT LLC
                                   ALLIANT ENERGY INTEGRATED SERVICES-ENERGY
                                      SOLUTIONS LLC

                                   By: /s/  Charles Castine
                                            ---------------
                                   Name:    Charles Castine
                                   Title:   Manager


                                   WHITING PETROLEUM CORPORATION
                                   RMT, INC.

                                   By: /s/  Edward M. Gleason
                                            -----------------
                                   Name:    Edward M. Gleason
                                   Title:   Assistant Treasurer


                                   HEARTLAND PROPERTIES, INC.
                                   CAPITAL SQUARE FINANCIAL CORPORATION

                                   By: /s/  Ruth A. Domack
                                            --------------
                                   Name:    Ruth A. Domack
                                   Title:   President


                                   PRAIRIE RIDGE BUSINESS PARK, L.C.

                                   By: /s/  Thomas L. Aller
                                            ---------------
                                   Name:    Thomas L. Aller
                                   Title:   Managing Representative


                                   SCHEDIN & ASSOCIATES, INC.

                                   By: /s/  Larry L. Schedin
                                            ----------------
                                   Name:    Larry L. Schedin
                                   Title:   President


                                   (signatures continued on next page)


                                       19



                                   SVBK CONSULTING GROUP, INC.

                                   By: /s/  John Steinhoff
                                            --------------
                                   Name:    John Steinhoff
                                   Title:   President

Date:  March 22, 2002


                                       20