DOCIDDC #101952 v14

                         (As filed October 30, 2001)

                                                             File No. 073-00091

                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                                   FORM U-57

                NOTIFICATION OF FOREIGN UTILITY COMPANY STATUS

                       Filed under Section 33(a) of the
            Public Utility Holding Company Act of 1935, as amended

                    Peak Energy Development Corporation LLC

                         Maples & Calder, Ugland House
                 P.O. Box 309 GT, Grand Cayman, Cayman Islands

                    Luannan Peak Heat & Power Company Ltd.
                 Luannan Peak Second Heat & Power Company Ltd.
                             Benchengzhong Street
                 Luannan County, Tangshan City, Hebei Province
                          People's Republic of China
               -------------------------------------------------
                      (Name of foreign utility companies)

                          Alliant Energy Corporation
                          222 West Washington Avenue
                           Madison, Wisconsin 53703
               ------------------------------------------------
                  (Name of filing company if filed on behalf
                         of a foreign utility company)

 The Commission is requested to mail copies of all communications relating to
                             this Notification to:

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




      Alliant Energy Corporation  ("Alliant Energy"),  a Wisconsin  corporation
and a registered  holding  company under the Public Utility Holding Company Act
of  1935  (the  "1935  Act"),  as  amended,  acting  on  behalf  of each of the
entities  named in Item 1 below,  hereby  notifies the  Securities and Exchange
Commission  (the  "Commission")  that each such  entity is,  and hereby  claims
status as, a foreign  utility  company  ("FUCO")  within the meaning of Section
33 of the 1935 Act.

ITEM 1.    Name of the entity(ies) on whose behalf foreign utility company
status is claimed, its (their) business address(es), and a brief description
of the facilities used for the generation, transmission, and distribution of
electric energy for sale or for the distribution at retail of natural or
manufactured gas.  Identity of each person that holds five percent (5%) or
more of any class of voting securities of the foreign utility company(ies)
and description of the amount and nature of the interest.

                    Peak Energy Development Corporation LLC
                         Maples & Calder, Ugland House
                 P.O. Box 309 GT, Grand Cayman, Cayman Islands

                    Luannan Peak Heat & Power Company Ltd.
                 Luannan Peak Second Heat & Power Company Ltd.
                             Benchengzhong Street
                 Luannan County, Tangshan City, Hebei Province
                          People's Republic of China

      Grandelight Holding Limited  ("Grandelight") is a wholly owned subsidiary
of Alliant Energy  International,  Inc., a  wholly-owned  subsidiary of Alliant
Energy  Resources,  Inc.  and an indirect  wholly-owned  subsidiary  of Alliant
Energy.   Grandelight  owns   approximately  83%  of  the  outstanding   voting
securities  of  Peak  Pacific   Investment  Co.,  Ltd  ("Peak"),   a  Singapore
corporation  engaged in the  development,  management  and  operation  of power
plants in the  People's  Republic of China  ("PRC")  under  Sino-foreign  joint
venture  arrangements.  Peak  participates  in eight (8) joint  ventures in the
PRC with PRC enterprise legal persons.1

Peak  Energy  Development  Corporation  LLC  ("Peak  Energy"):  is an  exempted
company  established  in the Cayman  Islands  by Peak and  Chinamac  Pte.  Ltd.
("Chinamac"),  a  limited  liability  company  established  under  the  laws of
Singapore.  Peak owns 99% of the company  stock,  and the remaining 1% is owned
by  Machimpex  (Malaysia)  Sdn Bhd, an  associated  company of Chinamac to whom
the  interest  was  transferred.  Peak Energy owns a majority  interest in each
of the following  two (2) operating joint venture companies:


Luannan Peak Heat & Power Company Ltd.  ("EJV1"):  is a joint  venture  between
Peak  Energy and  Luannan  County  Heat & Power  Plant  ("Luannan  County"),  a
state-owned  enterprise  established  under  the laws of the PRC.  Peak  Energy
owns  87.92%  of the  joint  venture,  and the  remaining  12.08%  is  owned by
Luannan  County.  EJV1 is a 50 MW coal fired  electric  and steam  facility  in
Hebei  Province,   PRC.  Power  generated  by  the  facility  is  sold  to  the
Jing-Jin-Tang  Grid of the North China Power Group Company.

Luannan Peak Second Heat & Power  Company  Ltd.  ("EJV2"):  is a joint  venture
between Peak Energy and Tangshan Luanhua Co. (Group)  ("Tangshan  Luanhua"),  a
state-owned  enterprise  established  under  the laws of the PRC.  Peak  Energy
owns  87.92%  of the  joint  venture,  and the  remaining  12.08%  is  owned by
Tangshan  Luanhua.  EJV2 is a 50 MW coal fired  electric and steam  facility in
Hebei  Province,   PRC.  Power  generated  by  the  facility  is  sold  to  the
Jing-Jin-Tang  Grid of the North China Power Group Company.

ITEM 2.    Name  of any  domestic  associate  public-utility  company  and,  if
applicable,  its  holding  company,  and  a  description  of  the  relationship
between the foreign  utility  company and such company,  and the purchase price
by any such domestic associate  public-utility  company for its interest in the
foreign utility company.

      The  following  companies,   each  of  which  is  a  direct  or  indirect
subsidiary  of  Alliant  Energy,  are  domestic  public-utility  companies  and
associate companies of the FUCOs identified in Item 1 above:

                              IES Utilities Inc.
                           Interstate Power Company
                       Wisconsin Power and Light Company
                  South Beloit Water, Gas & Electric Company
                             ATC Management, Inc.
                       American Transmission Company LLC
                         Wisconsin River Power Company

      At present, none of the aforementioned domestic public-utility  companies
has made an investment in or has any  contractual  relationship  with the FUCOs
identified in Item 1 above.


                                   EXHIBIT A
                              State Certification

                                 Inapplicable.



                                   SIGNATURE

      The  undersigned  company has duly caused this  statement to be signed on
its behalf by the undersigned thereunto duly authorized.


                          Alliant Energy Corporation


                          By:  /s/ Barbara J. Swan
                               --------------------
                          Barbara J. Swan
                          Executive Vice President
                          and General Counsel

Date:  October 30, 2001


--------
1     See Form U-57 filed on July 30, 1999 by Alliant Energy in which it
claimed "foreign utility company" status on behalf of five (5) development
projects of Peak, three (3) of which continue to be active, Henan Yongfeng
Electric Power Co. Ltd., Henan Anfeng Electric Power Co. Ltd., and
Shijiazhuang Chengfeng Cogen Co. Ltd.; Form U-57 filed on March 21, 2001 by
Alliant Energy claiming "foreign utility company" status on behalf of Hebei
Wuan Peak Coal Heat and Power Co., Ltd.; Form U-57 filed on August 1, 2001 by
Alliant Energy claiming "foreign utility company" status on behalf of Weifang
Ocean Peak Heat and Power Co., Ltd.;  Form U-57 filed on August 29, 2001 by
Alliant Energy claiming "foreign utility company" status on behalf of Zouping
Peak CHP Co., Ltd.; and the entities named in this filing.