File No. __________________

                       SECURITIES AND EXCHANGE COMMISSION

                                Washington, D.C.

                                    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

AES Ottana Energia S.r.l.
(name of foreign utility company)

by

THE AES CORPORATION
1001 N. 19th Street
Suite 2000
Arlington, Virginia 22209
(name of filing company, if filed on behalf of a foreign utility company)

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

         William R. Luraschi
         The AES Corporation
         1001 N. 19th Street
         Suite 2000
         Arlington, Virginia  22209

         Andrew B. Young
         Hugh E. Hilliard
         Dewey Ballantine LLP
         1775 Pennsylvania Avenue, N.W.
         Washington, D.C.  20006



ITEM 1

         Foreign utility status is claimed by AES Ottana Energia S.r.l., a
limited liability company organized under the laws of Italy, with its business
address at C.so Vittorio Emanuele 1, Milan, 20121 Italy and its branch office at
Strada Provinciale 17-18 km, Ottana (Nuoro), 08020 Italy.

         AES Ottana Energia S.r.l. owns and operates an oil-fired 140MW
cogeneration facility in Ottana, in the province of Nuoro, Sardinia, Italy. The
plant is electrically connected to the electrical grid of the island of
Sardinia.

         The AES Corporation owns 100% interest in AES Ottana Energia S.r.l.
through the following wholly owned subsidiaries, each of which is organized
under the laws of the Netherlands: Global Power Holdings CV, AES Global Power
Holdings B.V., and AES Baltic Holdings, B.V.

         The AES Corporation, a Delaware corporation, is an exempt public
utility holding company under section 3(a)(5) of the Public Utility Holding
Company Act of 1935 (the "Act").

ITEM 2

         AES Ottana Energia S.r.l. has two domestic associate public utility
companies, Central Illinois Light Company ("CILCO") and Indianapolis Power and
Light Company ("IPL"). CILCO is wholly owned by CILCORP, Inc., a wholly owned
subsidiary of the AES Corporation. IPL is wholly owned by IPALCO Enterprises
Inc., a wholly owned subsidiary of the AES Corporation.

         Neither CILCO nor IPL has made any investment in, nor has any
contractual relationship with, AES Ottana Energia S.r.l., nor are any such
investments or contractual relationships contemplated.

EXHIBIT A

         By letter dated March 10, 1999, the Illinois Commerce Commission
certified to the SEC with respect to CILCO that (1) it has the authority and
resources to protect Illinois consumers in accordance with applicable Illinois
statutes, and (2) it intends to exercise that authority, as required under
section 33(a)(2) of the Act in connection with AES Corporation's acquisition of
foreign utility companies. AES hereby incorporates this letter, filed June 10,
1999, in file number 070-09465, by reference.

         By letter dated September 28, 2000, the Indiana Utility Regulatory
Commission certified to the SEC with respect to IPL that (1) it has the
authority and resources to protect ratepayers subject to its jurisdiction, and
(2) it intends to exercise that authority as required under section 33(a)(2) of
the Act in connection with AES Corporation's acquisition of foreign utility
companies. AES hereby incorporates this letter, filed October 27, 2000, in file
number 070-09779, by reference.



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

By: /s/ William R. Luraschi
    -----------------------
    William R. Luraschi
    General Counsel
    The AES Corporation
    1001 N. 19th Street, Suite 2000
    Arlington, Virginia  22209
    (703) 522-1315

    Dated:  June 21, 2001.