AES CORPORATION
424B3, 1998-07-23
COGENERATION SERVICES & SMALL POWER PRODUCERS
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                   SUBJECT TO COMPLETION, DATED JULY 20, 1998

PROSPECTUS SUPPLEMENT                           Filed Pursuant to Rule 424(b)(3)
(To Prospectus Dated November 19, 1997)               Registration No. 333-39857

                                  $200,000,000

[GRAPHIC OMITTED]

                              THE AES CORPORATION
              % CONVERTIBLE JUNIOR SUBORDINATED DEBENTURES DUE 2005

                            INTEREST PAYABLE    AND

                                 -----------
     The  %   Convertible   Junior   Subordinated   Debentures   due  2005  (the
"Debentures")  of The AES  Corporation  ("AES" or the "Company") are convertible
into Common Stock,  $.01 par value (the "Common  Stock"),  of the Company at any
time at or before maturity, unless previously redeemed, at a conversion price of
$ per share,  subject to adjustment in certain  events.  The Common Stock of the
Company  is listed on The New York  Stock  Exchange  ("NYSE")  under the  symbol
"AES".  On July 20, 1998, the closing price for the Common Stock, as reported by
the NYSE, was $50 per share. See "Common Stock Price Ranges and Dividends".

     The  Debentures do not provide for a sinking fund.  The  Debentures are not
redeemable  by the  Company  prior to , 2001.  Thereafter,  the  Debentures  are
redeemable at the option of the Company,  in whole or in part, at the redemption
prices set forth in this Prospectus Supplement,  together with accrued interest.
Upon a Repurchase  Event (as defined  herein),  each holder of Debentures  shall
have the right,  at the holder's  option,  to require the Company to  repurchase
such  holder's  Debentures  at a purchase  price equal to 100% of the  principal
amount thereof, plus accrued interest. See "Description of Debentures -- Certain
Rights to Require Repurchase of Debentures".

     The Debentures are unsecured obligations of the Company and are subordinate
to all present and future Senior and  Subordinated  Debt (as defined  herein) of
the Company and all  liabilities of the Company's  subsidiaries.  The Debentures
rank pari passu with $250 million  aggregate  principal  amount of the Company's
outstanding  5.375%  Junior  Subordinated  Debentures  due 2027 and $300 million
aggregate principal amount of the Company's outstanding 5.5% Junior Subordinated
Debentures due 2012. As of March 31, 1998, the Company had  approximately  $1.48
billion in aggregate  principal amount of Senior and  Subordinated  Debt and the
subsidiaries of the Company had approximately  $4.40 billion in aggregate amount
of  liabilities  to which  the  Debentures  are  effectively  subordinated.  The
Indenture  will  not  restrict  the  incurrence  of any  other  indebtedness  or
liabilities by the Company or its  subsidiaries.  See "Description of Debentures
- -- Subordination".

     The  offering  of  the  Debentures  (the  "Offering")  is  being  conducted
concurrently  with an offering by the Company of 6,500,000  shares of its Common
Stock (the "Common Stock  Offering").  The  consummation  of the Offering is not
contingent upon the consummation of the Common Stock Offering.

     SEE  "RISK  FACTORS"  ON  PAGE  5 OF  THE  ACCOMPANYING  PROSPECTUS  FOR  A
DISCUSSION OF CERTAIN FACTORS THAT SHOULD BE CONSIDERED BY PROSPECTIVE INVESTORS
IN THE DEBENTURES OFFERED HEREBY.

                                 -----------
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
     ACCURACY OR ADEQUACY OF THIS PROSPECTUS SUPPLEMENT OR THE ACCOMPANYING
      PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

================================================================================
                    PRICE TO     UNDERWRITING     PROCEEDS TO
                   PUBLIC(1)      DISCOUNT(2)     COMPANY(3)
- --------------------------------------------------------------------------------
Per Debenture              %              %                %
- --------------------------------------------------------------------------------
Total(4)          $             $                $
================================================================================

(1)  Plus accrued interest, if any, from date of issuance.
(2)  The  Company  has agreed to  indemnify  the  several  Underwriters  against
     certain  liabilities,  including  liabilities  under the  Securities Act of
     1933, as amended. See "Underwriting".
(3)  Before deducting expenses payable by the Company, estimated at $      .
(4)  The Company has granted the Underwriters an option,  exercisable  within 30
     days after the date of this  Prospectus  Supplement,  to  purchase up to an
     additional  $30.0 million  aggregate  principal amount of Debentures on the
     same terms as set forth above solely to cover  over-allotments,  if any. If
     the  Underwriters  exercise such option in full, the total Price to Public,
     Underwriting  Discount  and  Proceeds  to  Company  will  be $ , $  and $ ,
     respectively. See "Underwriting".

                                 -----------
     The  Debentures  are being  offered by the  Underwriters,  subject to prior
sale,  when,  as and if delivered to and accepted by them and subject to certain
conditions.  It is expected that delivery of the Debentures will be made against
payment  therefor on or about , 1998 through the  facilities  of The  Depository
Trust Company.
                                  -----------
SALOMON SMITH BARNEY                                           J.P. MORGAN & CO.

                                 -----------
<TABLE>
<CAPTION>
<S>                                              <C>
DONALDSON, LUFKIN & JENRETTE
                       MORGAN STANLEY DEAN WITTER
                                                PAINEWEBBER INCORPORATED
    ,   1998                                                        C.E.   UNTERBERG, TOWBIN

</TABLE>



<PAGE>

CERTAIN PERSONS  PARTICIPATING  IN THIS OFFERING OR THE CONCURRENT  COMMON STOCK
OFFERING MAY ENGAGE IN TRANSACTIONS THAT STABILIZE, MAINTAIN OR OTHERWISE AFFECT
THE PRICE OF THE  DEBENTURES  AND THE COMMON STOCK,  INCLUDING  STABILIZING  AND
SYNDICATE  COVERING  TRANSACTIONS  AND THE  IMPOSITION  OF A PENALTY  BID. FOR A
DESCRIPTION OF THESE ACTIVITIES, SEE "UNDERWRITING".

               SPECIAL NOTE REGARDING FORWARD LOOKING STATEMENTS

     Certain  statements  under the  captions  "The  Company",  "Risk  Factors",
"Discussion  and Analysis of Financial  Condition and Results of Operations" and
"Business" included or incorporated by reference in the accompanying  Prospectus
and elsewhere in this  Prospectus  Supplement  and the  accompanying  Prospectus
constitute  "forward-looking  statements"  within  the  meaning  of the  Private
Securities  Litigation Reform Act of 1995 ("Reform Act").  Such  forward-looking
statements  involve  known and unknown  risks,  uncertainties  and other factors
which may cause the actual  results,  performance  and  achievements  of AES, or
industry  results,   to  be  materially   different  from  any  future  results,
performance  or  achievements  expressed  or  implied  by  such  forward-looking
statements.  Such factors include, among other things, the following factors, as
well as those factors  discussed in the section  entitled  "Risk Factors" in the
accompanying  Prospectus and those discussed elsewhere in AES's filings with the
Securities and Exchange  Commission (the  "Commission"),  including:  changes in
company-wide   operation   and   availability   compared  to  AES's   historical
performance;  changes in AES's  historical  operating cost structure,  including
changes in various costs and expenses;  political and economic considerations in
certain  non-U.S.  countries  where AES is  conducting  or is seeking to conduct
business; restrictions on foreign currency convertibility and remittance abroad,
exchange  rate  fluctuations  and  developing  legal  systems;   regulation  and
restrictions;  legislation  intended to promote competition in U.S. and non-U.S.
electricity markets;  tariffs;  governmental  approval processes;  environmental
matters;  construction,  operating  and fuel risks;  load  growth,  dispatch and
transmission  constraints;  conflict  of interest of  contracting  parties;  and
adherence to the AES principles; and other factors referenced in this Prospectus
Supplement  and  in the  accompanying  Prospectus.  See  "Risk  Factors"  in the
accompanying Prospectus.

                                      S-2

<PAGE>

                               OFFERING SUMMARY

     The following  information is qualified  entirely by, and should be read in
conjunction  with,  the more  detailed  information  appearing  elsewhere  in or
incorporated by reference into this Prospectus  Supplement and the  accompanying
Prospectus.

SECURITIES  OFFERED......  $200,000,000   aggregate   principal   amount   of  %
                           Convertible Junior Subordinated Debentures due , 2005
                           (the "Debentures").

PAYMENT OF INTEREST....          and      , commencing    , 1999.

CONVERSION...............  Convertible  into Common  Stock of the Company at the
                           option  of  the  holder  at  any  time  at or  before
                           maturity, unless previously redeemed, at a conversion
                           price  of $  per  share,  subject  to  adjustment  in
                           certain events.

SUBORDINATION............  Subordinated  to all  present  and future  Senior and
                           Subordinated  Debt of the Company and all liabilities
                           of the Company's subsidiaries.  As of March 31, 1998,
                           Senior   and   Subordinated   Debt  of  the   Company
                           aggregated    approximately    $1.48    billion   and
                           liabilities of the Company's subsidiaries  aggregated
                           approximately  $4.40 billion.  The Indenture contains
                           no  limitation  on  the  incurrence  of  indebtedness
                           (including  Senior  and  Subordinated  Debt) or other
                           liabilities by the Company and its subsidiaries.

REDEMPTION...............  The  Debentures  are  redeemable at the option of the
                           Company,  in  whole  or in  part,  at the  redemption
                           prices  set  forth  herein,   together  with  accrued
                           interest, except that no redemption may be made prior
                           to , 2001.

OPTIONAL  REDEMPTION.....  Upon  a   Repurchase   Event,   each  holder  of  the
                           Debentures  shall  have the  right,  at the  holder's
                           option,  to require  the Company to  repurchase  such
                           holder's Debentures at a purchase price equal to 100%
                           of  the  principal   amount  thereof,   plus  accrued
                           interest.  The term "Repurchase  Event" is limited to
                           transactions  involving  a  Change  in  Control  or a
                           Termination of Trading (each as defined herein),  and
                           does  not  include   any  other   events  that  might
                           adversely  affect  the  financial  condition  of  the
                           Company or result in a downgrade in the credit rating
                           (if any) of the Debentures.  The Company's ability to
                           repurchase  the  Debentures  following  a  Repurchase
                           Event  is  dependent   upon  the   Company's   having
                           sufficient  funds and may be  limited by the terms of
                           the Company's Senior and  Subordinated  Debt or other
                           contractual    limitations   or   the   subordination
                           provisions  of the  Indenture.  There is no assurance
                           that  the  Company  will be able  to  repurchase  the
                           Debentures upon the occurrence of a Repurchase Event.

USE  OF  PROCEEDS........  The Company  intends to use the net  proceeds of this
                           Offering  to  repay  certain   indebtedness  and  for
                           general  corporate   purposes,   including  potential
                           acquisitions. See "Use of Proceeds".

                                      S-3

<PAGE>

                              RECENT DEVELOPMENTS

     In May,  subsidiaries  of AES  completed  the  purchase  of three  electric
generating stations from Southern California Edison ("Edison") for approximately
$781 million.  In connection  with the  acquisition,  the Company  obtained $713
million of  non-recourse  project  financing.  AES Alamitos  (Long  Beach),  AES
Redondo  Beach and AES  Huntington  Beach all fire  natural  gas with a combined
summer peak generating capacity of 3,956 megawatts ("MW"). AES has contracted to
provide fuel conversion services from the facilities to Williams Energy Services
Company  ("Williams").  Under the long term agreement,  Williams delivers gas to
the plants and owns and markets the  electrical  output.  Project debt financing
for the  acquisition  was provided by a syndicate of banks led by Credit  Suisse
First Boston.  Pursuant to California's  electricity  restructuring  law, Edison
will remain under contract to operate and maintain the facilities for two years,
after which AES will assume operations.

     In June, a subsidiary  of the Company  raised $173 million of  non-recourse
project financing for the $230 million AES M-rida III 484 MW gas-fired  combined
cycle power plant currently under  construction in the City of M-rida,  Yucat-n,
Mexico.  When constructed and in operation,  the new facility will provide power
to the state utility in Mexico,  Comisi-n  Federal de  Electricidad,  under a 25
year power purchase agreement.

     In  June,  a  subsidiary  of  AES  was  selected  by the  Bangladesh  Power
Development Board as the First-Ranked Sponsor to build, own and operate a 450 MW
(net)  gas-fired  combined  cycle  power plant at a site 12 miles  southeast  of
Dhaka,  Bangladesh on the Meghna River (the "Meghnaghat  Project").  The site is
about 3 miles from  AES's  Haripur  project,  a 360 MW  gas-fired  plant that is
currently  under  development.  AES was awarded  the Haripur  project in January
1998.  Electricity from the Meghnaghat  Project is anticipated to be sold to the
Bangladesh Power  Development  Board under the terms of a 22 year power purchase
agreement, which is expected to be signed shortly.  Commercial operations of the
Meghnaghat   plant  is  expected  to  commence  in  the  year  2000.  Titus  Gas
Transmission and Distribution Company, a subsidiary of Petrobangla,  will supply
natural gas to the  facility  from a nearby  pipeline  for the term of the power
purchase agreement.

     In June, a subsidiary  of AES acquired 90% of Empresa  Distribuidora  de La
Plata S.A.  ("EDELAP"),  an  electric  distribution  company in the  province of
Buenos Aires,  Argentina for approximately  $350 million from a joint venture of
Houston Industries  Energy,  Inc. and a subsidiary of Techint S.A., an Argentine
industrial firm. EDELAP serves approximately 278,000 customers in and around the
city  of La  Plata,  the  capital  of  Buenos  Aires  Province.  A $193  million
non-recourse  loan was provided by Citibank for a portion of the purchase price.
The balance of the  purchase  price was financed  through a $165 million  bridge
loan to a subsidiary of AES provided by an affiliate of Salomon Brothers Holding
Company Inc. (the "EDELAP  Bridge").  Salomon  Brothers  Holding Company Inc. is
also an affiliate of Salomon Smith Barney,  a joint managing  underwriter of the
Offering.

     In July, two  subsidiaries  of AES, AES Lal Pir Limited ("AES Lal Pir") and
AES  PakGen  (Pvt)  Company  ("AES  PakGen"),  received  "Notices  of  Intent to
Terminate" certain project  agreements from the Government of Pakistan.  AES Lal
Pir is a 351 MW (net)  oil-fired  thermal  power  plant  located  in the  Punjab
Province of Pakistan. AES PakGen is a 344 MW (net) oil-fired thermal power plant
located  adjacent to AES Lal Pir. The notices  issued to these  projects  assert
that AES's subsidiaries made inaccurate  anti-corruption  representations to the
Government  of Pakistan.  AES believes that these notices are similar to notices
received by other independent  power producers in Pakistan.  AES strongly denies
the  allegations  made in the  Notices  of Intent to  Terminate  and  intends to
vigorously  pursue all  available  legal  options to enforce  and  preserve  its
contractual  rights under the project  agreements.  Despite these notices,  both
plants  continue to operate  normally and the customer,  the Pakistan  Water and
Power Development Authority, has continued to make its payments within the grace
period provided for in the contract.

                                      S-4

<PAGE>

                                USE OF PROCEEDS

     The net proceeds  from this Offering are  estimated to be  approximately  $
million ($ million if the  Underwriters'  overallotment  option is  exercised in
full). The Company currently  intends to use  approximately  $166 million of the
net proceeds of the Offering and the  concurrent  Common Stock Offering to repay
all amounts  outstanding under the EDELAP Bridge,  which was incurred to finance
the  acquisition of EDELAP.  The remaining net proceeds will be used for general
corporate purposes, including potential acquisitions, and to repay amounts under
the Company's $600 million corporate revolving credit facility (the "Revolver").

     The interest  rate on the EDELAP  Bridge is  initially  equal to LIBOR plus
2.5% and will increase by 1.0% each month beginning  January 1, 1999. The EDELAP
Bridge is secured by a pledge of 8.4 million  shares of Common  Stock  issued to
the  borrower.  The sale of a  substantial  number of such  shares in the public
market upon any  foreclosure  or otherwise  could have an adverse  effect on the
market price of the Common Stock. The EDELAP Bridge matures on June 29, 1999 and
is  required  to be  prepaid  out of the  proceeds  of  certain  debt or  equity
issuances by AES, including the Common Stock Offering.  AES may seek a waiver of
such prepayment  requirement,  and if granted,  AES will use the net proceeds of
the Offering for general corporate purposes,  including potential  acquisitions,
and initially may temporarily invest such proceeds in short-term securities.

     Amounts  outstanding  under the Revolver  bear  interest at either the Base
Rate (equal to the higher of Morgan  Guaranty  Trust Company of New York's prime
rate or the  federal  funds  rate plus  0.50%) or LIBOR plus 1.50% and mature on
December 19, 2000. An affiliate of J.P. Morgan Securities Inc., a joint managing
underwriter of the Offering, is a lender under the Revolver.

                                      S-5

<PAGE>

                           DESCRIPTION OF DEBENTURES

     The Debentures will be issued under an indenture dated as of , 1998 between
the Company and The First National Bank of Chicago,  as trustee (the "Trustee"),
as  supplemented  by the First  Supplemental  Indenture dated , 1998 between the
Company and the Trustee (as so  supplemented,  the  "Indenture").  The following
summaries of certain  provisions  of the Indenture do not purport to be complete
and are subject to, and are qualified in their  entirety by reference to, all of
the  provisions of the Indenture,  including the  definition  therein of certain
terms.  Wherever  particular  sections  or defined  terms of the  Indenture  are
referred  to,  such  sections  or  defined  terms  are  incorporated  herein  by
reference.  A copy of the  Indenture  has been  incorporated  by reference as an
exhibit to the Registration Statement of which the accompanying Prospectus forms
a part and is also available for inspection at the office of the Trustee.

     The Indenture does not limit the aggregate principal amount of indebtedness
which may be issued thereunder and provides that junior subordinated  debentures
may be issued thereunder from time to time in one or more series. The Debentures
constitute a separate series under the Indenture.

GENERAL

     The  Debentures  will be  unsecured  obligations  of the  Company,  will be
limited  to  $230.0  million  in  aggregate   principal  amount  (including  the
Underwriters'  overallotment  option) and will mature on , 2005.  The Debentures
will  bear  interest  at the rate per  annum  shown on the  front  cover of this
Prospectus  Supplement from the date of original issuance of Debentures pursuant
to the  Indenture,  or from  the  most  recent  Interest  Payment  Date to which
interest  has been paid or provided  for,  payable  semiannually  on and of each
year, commencing , 1999, to the Person in whose name the Debenture is registered
at the close of business on the  preceding or , as the case may be.  Interest on
the  Debentures  will be paid on the  basis of a 360-day  year of twelve  30-day
months.

     The Debentures will be issued only in registered form,  without coupons and
in denominations of $1,000 or any integral multiple  thereof.  No service charge
will be made for any transfer or exchange of the Debentures, but the Company may
require  payment  of a sum  sufficient  to cover  any tax or other  governmental
charge and any other  expenses  (including the fees and expenses of the Trustee)
payable in  connection  therewith.  The  Company is not  required  (i) to issue,
register the transfer of or exchange any Debentures during a period beginning at
the  opening of  business  15 days  before the day of the mailing of a notice of
redemption  and ending at the close of  business  on the day of such  mailing or
(ii) to  register  the  transfer  of or  exchange  any  Debenture  selected  for
redemption  in whole or in part,  except the  unredeemed  portion of  Debentures
being redeemed in part.

     The Indenture does not contain any provisions that would provide protection
to Holders of the  Debentures  against a sudden and  dramatic  decline in credit
quality of the Company resulting from any takeover,  recapitalization or similar
restructuring,  except as  described  below  under  "Certain  Rights to  Require
Repurchase of Debentures".

SUBORDINATION

     The  payment  of  principal  of,  premium,  if  any,  and  interest  on the
Debentures will, to the extent and in the manner set forth in the Indenture,  be
subordinated  in right of payment to the prior  payment in full, in cash or cash
equivalents, of all Senior and Subordinated Debt of the Company.

     Upon  any  payment  or   distribution  of  assets  to  creditors  upon  any
liquidation, dissolution, winding up, receivership,  reorganization,  assignment
for the  benefit  of  creditors,  marshaling  of assets and  liabilities  or any
bankruptcy, insolvency or similar proceedings of the Company, the holders of all
Senior and  Subordinated  Debt will first be entitled to receive payment in full
of all amounts due or to become due thereon before the holders of the Debentures
will be entitled to receive any payment in respect of the principal of, premium,
if any, or interest on the Debentures.

                                      S-6

<PAGE>

     No  payments  on account of  principal,  premium,  if any,  or  interest in
respect  of the  Debentures  may be made by the  Company  if  there  shall  have
occurred  and be  continuing a default in any payment with respect to Senior and
Subordinated  Debt. In addition,  during the  continuance  of any other event of
default  (other than a payment  default) with respect to  Designated  Senior and
Subordinated  Debt  pursuant to which the maturity  thereof may be  accelerated,
from and after the date of receipt by the Trustee of written notice from holders
of such  Designated  Senior  and  Subordinated  Debt or  from an  agent  of such
holders,  no payments on account of principal,  premium, if any, or interest may
be made by the  Company  during a Payment  Blockage  Period in  respect  of such
Debentures  (unless such Payment  Blockage Period shall be terminated by written
notice  to  the  Trustee  from  the  holders  of  such  Designated   Senior  and
Subordinated Debt or from an agent of such holders, or such event of default has
been cured or waived or has ceased to exist).  Only one Payment  Blockage Period
may be  commenced  with  respect  to the  Debentures  during  any  period of 360
consecutive  days. No event of default  which  existed or was  continuing on the
date of the  commencement  of any Payment  Blockage  Period with  respect to the
Designated  Senior and Subordinated Debt initiating such Payment Blockage Period
shall be or be made the basis for the  commencement  of any  subsequent  Payment
Blockage Period by the holders of such Designated Senior and Subordinated  Debt,
unless such event of default shall have been cured or waived for a period of not
less than 90 consecutive days.

     By reason of such  subordination,  in the event of  insolvency,  funds that
would  otherwise be payable to holders of Debentures will be paid to the holders
of Senior and  Subordinated  Debt of the Company to the extent  necessary to pay
such Debt in full,  and the Company may be unable to meet fully its  obligations
with respect to the Debentures.

     "Debt"  is  defined  to mean,  with  respect  to any  person at any date of
determination  (without  duplication),  (i) all  indebtedness of such person for
borrowed  money,  (ii)  all  obligations  of such  person  evidenced  by  bonds,
debentures,  notes or other similar  instruments,  (iii) all obligations of such
person in respect of letters of credit or bankers'  acceptance  or other similar
instruments  (or  reimbursement  obligations  with  respect  thereto),  (iv) all
obligations  of such person to pay the  deferred  purchase  price of property or
services,  except trade  payables,  (v) all obligations of such person as lessee
under capitalized leases, (vi) all Debt of others secured by a lien on any asset
of such  person,  whether or not such Debt is assumed by such  person;  provided
that, for purposes of  determining  the amount of any Debt of the type described
in this clause,  if recourse with respect to such Debt is limited to such asset,
the amount of such Debt shall be limited to the lesser of the fair market  value
of such asset or the amount of such Debt, (vii) all Debt of others guaranteed by
such person to the extent such Debt is  guaranteed  by such  person,  (viii) all
redeemable  stock  valued  at  the  greater  of  its  voluntary  or  involuntary
liquidation  preference plus accrued and unpaid dividends and (ix) to the extent
not otherwise included in this definition,  all obligations of such person under
currency agreements and interest rate agreements.

     "Designated Senior and Subordinated Debt" is defined to mean (i) Debt under
the Credit Agreement and (ii) Debt  constituting  Senior and  Subordinated  Debt
which, at the time of its determination,  (A) has an aggregate  principal amount
of at least $30 million and (B) is specifically  designated in the instrument as
"Designated Senior and Subordinated Debt" by the Company.

     "Senior and  Subordinated  Debt" is defined to mean the  principal  of (and
premium,  if any) and  interest  on all  Debt of the  Company  whether  created,
incurred or assumed before, on or after the date of the Junior Subordinated Debt
Indenture; provided that such Senior and Subordinated Debt shall not include (i)
Debt of the  Company  to any  affiliate,  (ii) Debt of the  Company  that,  when
incurred and without  respect to any election under Section 1111(b) of Title 11,
U.S.  Code, was without  recourse,  (iii) any other Debt of the Company which by
the terms of the  instrument  creating or evidencing  the same are  specifically
designated  as not being  senior in right of payment to the  Debentures,  and in
particular the Debentures  shall rank pari passu with all other debt  securities
and guarantees  issued to an AES Trust or any other trust,  partnership or other
entity  affiliated with the Company which is a financing  vehicle of the Company
in connection with an issuance of preferred securities by such financing entity,
and (iv) redeemable stock of the Company.

                                      S-7

<PAGE>

LIMITATION ON ADDITIONAL TIERS OF JUNIOR SUBORDINATED DEBT

     The  Company  will not incur or suffer to exist any Debt,  other  than Debt
evidenced by the  Debentures,  that is  subordinated  in right of payment to any
Senior  Subordinated  Debt  unless  such debt,  by its terms or the terms of the
instrument  creating or evidencing  it, is pari passu with, or  subordinated  in
right of payment to, the Debentures.

CONVERSION RIGHTS

     The Debentures  will be convertible  into Common Stock at any time prior to
redemption or final maturity,  initially at the conversion  price of $ per share
(resulting  in an  initial  conversion  ratio of  shares  per  $1,000  principal
amount).  The right to convert  Debentures which have been called for redemption
will terminate at the close of business on the second business day preceding the
Redemption Date. See "Optional Redemption" below.

     The conversion  price will be subject to adjustment  upon the occurrence of
any  of  the   following   events:   (i)   the   subdivision,   combination   or
reclassification  of  outstanding  shares of Common  Stock;  (ii) the payment in
shares of Common  Stock of a dividend  or  distribution  on any class of capital
stock of the Company; (iii) the issuance of rights or warrants to all holders of
Common  Stock  entitling  them to acquire  shares of Common Stock at a price per
share less than the Current Market Price;  (iv) the  distribution to all holders
of Common Stock of shares of capital stock other than Common Stock, evidences of
indebtedness,  cash or assets (including securities,  but excluding dividends or
distributions paid exclusively in cash and dividends,  distributions, rights and
warrants referred to above); (v) a distribution  consisting  exclusively of cash
(excluding any cash  distributions  referred to in (iv) above) to all holders of
Common  Stock in an  aggregate  amount  that,  together  with (A) all other cash
distributions  (excluding any cash distributions referred to in (iv) above) made
within the 12 months  preceding such  distribution and (B) any cash and the fair
market  value of other  consideration  payable in respect of any tender offer by
the Company or a  subsidiary  of the Company  for the Common  Stock  consummated
within the 12 months preceding such  distribution,  exceeds 15% of the Company's
market  capitalization  (determined  as provided in the  Indenture)  on the date
fixed for determining the stockholders  entitled to such distribution;  and (vi)
the  consummation of a tender offer made by the Company or any subsidiary of the
Company for the Common  Stock which  involves an aggregate  consideration  that,
together  with (X) any cash and other  consideration  payable  in respect of any
tender offer by the Company or a subsidiary  of the Company for the Common Stock
consummated  with the 12 months  preceding the consummation of such tender offer
and (Y) the  aggregate  amount  of all cash  distributions  (excluding  any cash
distributions  referred  to in (iv)  above) to all  holders of the Common  Stock
within the 12 months  preceding the  consummation of such tender offer,  exceeds
15% of the Company's market  capitalization  at the date of consummation of such
tender offer. No adjustment of the conversion  price will be required to be made
until  cumulative  adjustments  amount to at least one percent of the conversion
price,  as last adjusted.  Any adjustment that would otherwise be required to be
made  shall  be  carried  forward  and  taken  into  account  in any  subsequent
adjustment.

     In addition to the  foregoing  adjustments,  the Company  from time to time
may,  to the  extent  permitted  by law,  reduce  the  conversion  price  of the
Debentures  by any amount for any period of at least 20 days,  in which case the
Company  shall give at least 15 days notice of such  decrease.  The Company will
also be permitted to reduce the conversion  price to such extent as it considers
to be advisable in order that any event treated for federal  income tax purposes
as a dividend of stock or stock rights will not be taxable to the holders of the
Common Stock or, if that is not possible,  to diminish any income taxes that are
otherwise  payable  because of such event. In the case of any  consolidation  or
merger of the  Company  with any other  corporation  (other than one in which no
change  is  made  in the  Common  Stock),  or any  sale  or  transfer  of all or
substantially all of the assets of the Company, the Holder of any Debenture then
outstanding will, with certain exceptions,  have the right thereafter to convert
such  Debenture  only  into the kind and  amount of  securities,  cash and other
property  receivable  upon such  consolidation,  merger,  sale or  transfer by a
holder of the number of shares of Common Stock into which such  Debenture  might
have been converted  immediately prior to such  consolidation,  merger,  sale or
transfer;  and adjustments will be provided for events  subsequent  thereto that
are as nearly  equivalent  as  practical  to the  conversion  price  adjustments
described above.

                                      S-8

<PAGE>

     Fractional shares of Common Stock will not be issued upon conversion,  but,
in lieu  thereof,  the Company  will pay a cash  adjustment  based upon the then
Closing  Price  at the  close  of  business  on the  day of  conversion.  If any
Debentures are  surrendered  for conversion  during the period from the close of
business on any Regular  Record Date through and including  the next  succeeding
Interest  Payment Date (except any such  Debentures  called for  redemption on a
redemption  date  occurring  on or before  such  Interest  Payment  Date),  such
Debentures  when  surrendered  for conversion  must be accompanied by payment in
next days funds of an amount equal to the interest  thereon which the registered
Holder on such  regular  Record Date is to receive.  Except as  described in the
preceding  sentence,  no interest  will be payable by the  Company on  converted
Debentures  with respect to any Interest  Payment Date subsequent to the date of
conversion.  No other payment or  adjustment  for interest or dividends is to be
made upon conversion.

OPTIONAL REDEMPTION

     The Debentures  will be redeemable,  at the Company's  option,  in whole or
from time to time in part, at any time on or after , 2001, upon not less than 30
nor more than 60 days' notice mailed to each holder of Debentures to be redeemed
at its address  appearing in the Security  Register and prior to maturity at the
following  Redemption  Prices (expressed as percentages of the principal amount)
plus accrued interest to the Redemption Date (subject to the right of Holders of
record  on the  relevant  Regular  Record  Date to  receive  interest  due on an
Interest Payment Date that is on or prior to the Redemption Date).

     If redeemed during the 12-month period beginning in the year indicated, the
redemption price shall be:

                                YEAR              REDEMPTION PRICE
                                ----              ----------------
               2001 ..........................                  % 
               2002 ..........................                  % 
               2003 ..........................                  % 
               2004 ..........................             100.0% 
               
     No sinking fund is provided for the Debentures.

CERTAIN RIGHTS TO REQUIRE REPURCHASE OF DEBENTURES

     In the event of any Repurchase Event (as defined below) occurring after the
date of issuance of the Debentures  and on or prior to Maturity,  each Holder of
Debentures will have the right, at the Holder's  option,  to require the Company
to  repurchase  all or  any  part  of the  Holder's  Debentures  on a date  (the
"Repurchase  Date") that is at least 30 days and not more than 60 days after the
date the Company gives notice of the  Repurchase  Event as described  below at a
price (the  "Repurchase  Price") equal to 100% of the principal  amount thereof,
together with accrued and unpaid interest to the Repurchase Date. On or prior to
the  Repurchase  Date,  the Company  shall  deposit with the Trustee or a Paying
Agent  an  amount  of  money  sufficient  to pay  the  Repurchase  Price  of the
Debentures which are to be repaid on or promptly following the Repurchase Date.

     Failure by the Company to provide timely notice of a Repurchase  Event,  as
provided for below,  or to repurchase  the  Debentures  when required  under the
preceding  paragraph  will  result in an Event of  Default  under the  Indenture
whether or not such repurchase is permitted by the  subordination  provisions of
the Indenture.

     On or before the 30th day after the occurrence of a Repurchase  Event,  the
Company  is  obligated  to mail to all  Holders  of  Debentures  a notice of the
occurrence of such Repurchase  Event and  identifying  the Repurchase  Date, the
date by which the repurchase  right must be exercised,  the Repurchase Price for
Debentures  and the  procedures  which the Holder must  follow to exercise  this
right. To exercise the repurchase right, the Holder of a Debenture must deliver,
on or before the close of business on the

                                      S-9

<PAGE>

Repurchase  Date,  written notice to the Company (or an agent  designated by the
Company for such  purpose) and to the Trustee of the  Holder's  exercise of such
right, together with the certificates  evidencing the Debentures with respect to
which the right is being exercised, duly endorsed for transfer.

     A "Repurchase Event" shall have occurred upon the occurrence of a Change in
Control or a Termination of Trading (each as defined below).

     A "Change in Control"  shall occur when: (i) any sale,  lease,  exchange or
other transfer (in one transaction or a series of related  transactions) of all,
or  substantially  all,  of the assets of the Company to any Person or group (as
that term is used in Section 13(d)(3) of the Securities Exchange Act of 1934, as
amended)  of Persons,  (ii) a Person or group (as so defined) of Persons  (other
than  management  and  directors of the Company on the date of the  Indenture or
their Affiliates) shall have become the beneficial owner of more than 35% of the
outstanding  Voting Stock of the Company,  or (iii) during any one-year  period,
individuals  who at the  beginning  of  such  period  constitute  the  Board  of
Directors  (together  with any new director  whose  election or  nomination  was
approved by a majority of the directors then in office who were either directors
at the  beginning of such period or who were  previously  so approved)  cease to
constitute a majority of the Board of Directors.

     A  "Termination  of  Trading"  shall  occur if the Common  Stock (or if the
Debentures are not then  convertible  into Common Stock,  any other common stock
into which the Debentures are then convertible) is neither listed for trading on
a U.S. national  securities  exchange nor approved for trading on an established
automated over-the-counter trading market in the United States.

     The right to require the Company to  repurchase  Debentures  as a result of
the  occurrence  of a Repurchase  Event could  create an event of default  under
certain Senior and Subordinated  Debt as a result of which any repurchase could,
absent a waiver, be blocked by the  subordination  provisions of the Debentures.
See "Subordination".  Contractual  limitations imposed by other indebtedness may
also,  absent  a  waiver,   restrict  or  prohibit   repurchases  under  certain
circumstances.

     In the event a  Repurchase  Event  occurs and the  Holders  exercise  their
rights to require the Company to repurchase  Debentures,  the Company intends to
comply with  applicable  tender  offer rules under the Exchange  Act,  including
Rules 13e-4 and 14e-1, as then in effect, with respect to any such purchase.

     The  foregoing  provisions  would not  necessarily  afford  Holders  of the
Debentures  protection  in the event of highly  leveraged or other  transactions
involving  the Company that may  adversely  affect  Holders.  In  addition,  the
foregoing provisions may discourage open market purchases of the Common Stock or
a non-negotiated tender or exchange offer for such stock and,  accordingly,  may
limited a  stockholder's  ability to realize a premium  over the market price of
the Common Stock in connection with any such transaction.

FORM, DENOMINATION AND REGISTRATION

     The Debentures will be issued in fully registered form, without coupons, in
denominations of $1,000 in principal amount and integral multiples thereof.  The
Debentures will be evidenced by one or more global  securities  (each, a "Global
Debentures"). The Global Debentures will be deposited with, or on behalf of, The
Depository Trust Company ("DTC") or its nominee.  Except as set forth below, the
Global  Debentures  may be  transferred,  in whole or in part,  only to  another
nominee of DTC or to a successor of DTC or its nominee. See "Description of Debt
Securities -- Book-Entry Systems" in the accompanying Prospectus.

PAYMENTS OF PRINCIPAL AND INTEREST; TRANSFER, EXCHANGE OR CONVERSION

     The  Indenture  will  require  that  payments in respect of the  Debentures
(including  principal,  premium,  if any, and interest) held of record by DTC be
made in same day funds.  Payments in respect of the Debentures held of record by
holders  other than DTC may, at the option of the Company,  be made by check and
mailed to such holders of record as shown on the  register  for the  Debentures.
The Debentures may be  surrendered  for transfer,  exchange or conversion at the
office of the Trustee in New York, New York.

                                      S-10

<PAGE>

GOVERNING LAW

     The  Indenture  and  Debentures  will  be  governed  by  and  construed  in
accordance with the laws of the State of New York, without giving effect to such
State's conflicts of laws principles.

INFORMATION CONCERNING THE TRUSTEE

     The Company and its  subsidiaries may maintain deposit accounts and conduct
other banking transactions with the Trustee in the ordinary course of business.

OTHER PROVISIONS

     See the  accompanying  Prospectus for a description  of certain  additional
provisions  of  the  Indenture,  including  events  of  default  thereunder  and
provisions for amendments and modifications thereof.

                                      S-11

<PAGE>

                    COMMON STOCK PRICE RANGES AND DIVIDENDS

     The Common Stock began trading on the New York Stock  Exchange  ("NYSE") on
October 16, 1996 under the symbol  "AES".  Prior to that date,  the Common Stock
had been quoted on the NASDAQ  National Market System  ("NASDAQ/NMS")  under the
symbol "AESC". The following table sets forth for the periods indicated the high
and low sale prices for the Common Stock as reported on the NYSE  Composite Tape
and by NASDAQ/NMS. In July 1997, AES announced a two-for-one stock split, in the
form of a stock  dividend,  for holders of record on July 28, 1997 of its Common
Stock,  paid on August 28, 1997.  The prices set forth below reflect  adjustment
for such stock split.

<TABLE>
<CAPTION>
                                                           HIGH        LOW   
                                                           ----        ---   
<S>                                                    <C>         <C>       
1996                                                                         
- ----                                                                         
First Quarter .......................................   $  12.63    $  10.50 
Second Quarter .....................................       14.81       11.13 
Third Quarter ......................................       20.25       13.94 
Fourth Quarter .....................................       25.06       19.63 

1997                                                              
- ----                                                              
First Quarter ......................................    $  34.13    $  22.63 
Second Quarter .....................................       37.75       27.50 
Third Quarter ......................................       45.25       34.63 
Fourth Quarter .....................................       49.63       35.00 

1998                                                              
- ----                                                              
First Quarter ......................................    $  53.88    $  39.88 
Second Quarter .....................................       57.69       46.25 
Third Quarter (through July 20) ....................       54.25       49.13 
</TABLE>                                               

     No cash  dividends  have been paid on the Common  Stock since  December 22,
1993 in order  to  provide  capital  for the  Company's  equity  investments  in
projects.

     Under the terms of the Revolver,  the Company is currently  prohibited from
paying cash  dividends.  In addition,  the Company is precluded from paying cash
dividends  on its  Common  Stock  under the terms of a guaranty  to the  utility
customer  in  connection  with the AES Thames  project in the event  certain net
worth and liquidity  tests of the Company are not met. The Company has met these
tests at all times since making the guaranty.

     The ability of the Company's  subsidiaries to declare and pay dividends and
otherwise  distribute  cash to the Company is subject to certain  limitations in
the project loans and other documents entered into by such project subsidiaries.
Such  limitations  permit the payment of dividends  out of current cash flow for
quarterly,  semi-annual  or annual  periods  only at the end of such periods and
only after  payment of principal and interest on project loans due at the end of
such periods, and in certain cases after providing for debt service reserves.

     The indentures relating to the Company's existing senior subordinated notes
preclude  the payment of cash  dividends if at the time of such payment or after
giving effect thereto an event of default (as defined),  or an event that, after
the giving of notice or lapse of time or both, would become an event of default,
shall have occurred and be continuing,  if certain fixed charge  coverage ratios
are not met or if the payment of such dividends,  together with other restricted
payments, would exceed certain limits.

     Under the Amended and Restated Certificate of Incorporation of the Company,
the authorized  capital stock of the Company  consists of 500,000,000  shares of
Common  Stock,  par value $.01 per share,  and  50,000,000  shares of  Preferred
Stock, no par value.

                                      S-12

<PAGE>

                CERTAIN U.S. FEDERAL INCOME TAX CONSIDERATIONS

     The following is a general  discussion of certain U.S.  federal  income and
estate tax  consequences  of the ownership  and  disposition  of Debentures  and
Common Stock  received on  conversion  of the  Debentures  to an initial  holder
purchasing a Debenture at its "issue  price" and holding the Debenture or Common
Stock as a capital  asset  within the  meaning  of Section  1221 of the Code (as
defined  below).  The "issue  price" is the first price to the public at which a
substantial  amount of the Debentures is sold  (excluding  sales to bond houses,
brokers  or  similar  persons  or  organizations   acting  in  the  capacity  of
underwriters, placement agents or wholesalers).

     This  discussion is based on the Internal  Revenue Code of 1986, as amended
(the "Code"),  and administrative  interpretations as of the date hereof, all of
which are subject to change,  including  changes with retroactive  effect.  This
discussion  does not  address  all  aspects  of U.S.  federal  income and estate
taxation  that  may  be  relevant  to  holders  in  light  of  their  particular
circumstances or to holders subject to special rules,  such as certain financial
institutions,  insurance  companies,  dealers and certain traders in securities,
persons holding Debentures in connection with a hedging transaction, "straddle",
conversion  transaction  or other  integrated  transaction,  or persons who have
ceased to be United  States  citizens  or to be taxed as resident  aliens.  This
discussion does not address any tax  consequences  arising under the laws of any
state, local or foreign  jurisdiction.  Prospective holders should consult their
tax advisers with respect to the particular tax  consequences  to them of owning
and disposing of Debentures,  including the  consequences  under the laws of any
state, local or foreign jurisdiction.

     "U.S.  Holder"  means an owner of a  Debenture  that is, for United  States
federal  income tax  purposes,  (i) a citizen or resident of the United  States,
(ii) a corporation, partnership or other entity created or organized in or under
the laws of the United States or of any political  subdivision  thereof or (iii)
an estate  or trust the  income of which is  subject  to United  States  federal
income taxation regardless of its source.

     "Non-U.S.  Holder" means an owner of a Debenture that is, for United States
federal  income  tax  purposes,  a  non-resident  alien  individual,  a  foreign
corporation, a foreign partnership or a foreign estate or trust.

U.S. HOLDERS

     Payments of  Interest.  Interest  paid on a  Debenture  will  generally  be
taxable to a U.S.  Holder as ordinary  interest income at the time it accrues or
is  received in  accordance  with the U.S.  Holder's  method of  accounting  for
federal income tax purposes.

     Sale,  Exchange or Retirement of the Debentures. Upon the sale, exchange or
retirement  of  a  Debenture,  a U.S. Holder will recognize taxable gain or loss
equal  to  the  difference  between such U.S. Holder's adjusted tax basis in the
Debenture  and  the  amount realized on the sale, exchange or retirement. A U.S.
Holder's  adjusted tax basis in a Debenture will generally equal the cost of the
Debenture to such U.S. Holder.

     Gain or loss  realized on the sale,  exchange or  retirement of a Debenture
will be capital gain or loss.  Prospective  investors  should  consult their tax
advisers  regarding  the treatment of capital gains (which may be taxed at lower
rates than ordinary income for certain taxpayers who are individuals,  trusts or
estates) and losses (the deductibility of which is subject to limitations).

     Conversion of  Debentures.  A U.S Holder's  conversion of a Debenture  into
Common Stock will  generally not be a taxable event. A U.S Holder's basis in the
Common Stock  received on conversion of a Debenture will be the same as the U.S.
Holder's basis in the Debenture at the time of the conversion  (exclusive of any
tax basis  allocable  to a  fractional  share),  and the holding  period for the
Common  Stock  received on  conversion  will  include the holding  period of the
Debenture converted. The receipt of cash in lieu of a fractional share of Common
Stock  should  generally  result  in  capital  gain  or  loss,  measured  by the
difference  between the cash received for the fractional  share interest and the
U.S. Holder's tax basis in the fractional share interest.

     Adjustment  of  Conversion  Rate.  If at  any  time  the  Company  makes  a
distribution  of  property  to  shareholders  that  would  be  taxable  to  such
shareholders  as a dividend  for  federal  income  tax  purposes  (for  example,
distributions  of  evidences  of  indebtedness  or  assets of the  Company,  but
generally not

                                      S-13

<PAGE>

stock  dividends or rights to subscribe for Common  Stock) and,  pursuant to the
anti-dilution provisions of the Indenture, the Conversion Rate of the Debentures
is  increased,  such  increase  may be  deemed  to be the  payment  of a taxable
dividend to U.S.  Holders of Debentures.  If the Conversion Rate is increased at
the discretion of the Company or in certain other  circumstances,  such increase
may also be deemed to be the payment of a taxable  dividend  to U.S.  Holders of
Debentures.  Moreover,  in  certain  other  circumstances,  the  absence  of  an
adjustment  to the  Conversion  Rate of the  Debentures  may result in a taxable
dividend to the holders of the Common Stock.

     Ownership and Disposition of Common Stock.  Dividends,  if any, paid on the
Common Stock  generally  will be  includable  in the income of a U.S.  Holder as
ordinary  income  to the  extent  of the  U.S.  Holder's  ratable  share  of the
Company's current or accumulated  earnings and profits.  Upon the sale, exchange
or other  disposition  of Common Stock, a U.S.  Holder  generally will recognize
capital gain or capital loss equal to the difference between the amount realized
on such sale or exchange  and the  holder's  adjusted  tax basis in such shares.
Prospective  investors should consult their tax advisers regarding the treatment
of capital  gains  (which may be taxed at lower rates than  ordinary  income for
certain  taxpayers  who are  invidivuals,  trusts or  estates)  and losses  (the
deductibility of which is subject to limitations).

NON-U.S. HOLDERS

     Under present  United States federal tax law, and subject to the discussion
below concerning backup withholding:

     (a) payments of  principal,  interest and premium on the  Debentures by the
Company or its paying agent to any  Non-U.S.  Holder will be exempt from the 30%
United States federal  withholding tax,  provided that (i) such Non-U.S.  Holder
does not own,  actually  or  constructively,  10% or more of the total  combined
voting power of all classes of stock of the Company  entitled to vote,  is not a
controlled foreign corporation related,  directly or indirectly,  to the Company
through  stock  ownership,  and is not a bank  receiving  interest  described in
Section 881(c)(3)(A) of the Code and (ii) the statement requirement set forth in
Section  871(h) or Section 881(c) of the Code has been fulfilled with respect to
the beneficial owner, as discussed below;

     (b) a Non-U.S.  Holder of a Debenture  will not be subject to United States
federal income tax on gain realized on the sale,  exchange or other  disposition
of such Debenture, unless (i) such Holder is an individual who is present in the
United States for 183 days or more in the taxable year of the  disposition,  and
either the gain is  attributable  to an office or other  fixed place of business
maintained  by  such  individual  in  the  United  States  or,  generally,  such
individual  has a "tax  home"  in  the  United  States  or  (ii)  such  gain  is
effectively  connected  with the Holder's  conduct of a trade or business in the
United States; and

     (c) a Debenture  held by an individual who is not, for United States estate
tax  purposes,  a resident  or  citizen of the United  States at the time of his
death  generally  will not be subject to United States  federal  estate tax as a
result of such  individual's  death,  provided that the individual does not own,
actually or  constructively,  10% or more of the total combined  voting power of
all  classes of stock of the  Company  entitled to vote and, at the time of such
individual's death,  payments with respect to such Debenture would not have been
effectively  connected to the conduct by such  individual of a trade or business
in the United States.

     The  certification  requirement  referred  to in  subparagraph  (a) will be
fulfilled  if the  beneficial  owner of a Debenture  certifies  on IRS Form W-8,
under  penalties of perjury,  that it is not a United States person and provides
its name and address, and (i) such beneficial owner files such Form W-8 with the
withholding  agent or  (ii),  in the case of a  Debenture  held by a  securities
clearing  organization,  bank or other financial  institution holding customers'
securities in the ordinary course of its trade or business holding the Debenture
on behalf of the beneficial  owner,  such financial  institution  files with the
withholding  agent a statement that it has received the Form W-8 from the Holder
and  furnishes  the  withholding  agent  with a copy  thereof.  With  respect to
Debentures held by a foreign partnership, under current law, the Form W-8 may be
provided by the foreign partnership.  However,  unless a foreign partnership has
entered into a withholding  agreement with the Internal Revenue Service ("IRS"),
for interest and  disposition  proceeds  paid with respect to a Debenture  after
December  31,  1999,  the  foreign  partnership  will be  required  (and  may be
permitted earlier),

                                      S-14

<PAGE>

in addition to  providing  an  intermediary  Form W-8, to attach an  appropriate
certification  by  each  partner.   Prospective  investors,   including  foreign
partnerships  and their  partners,  should consult their tax advisers  regarding
possible additional reporting requirements.

     If a Non-U.S.  Holder of a  Debenture  is engaged in a trade or business in
the United  States,  and if interest on the  Debenture  (or gain realized on its
sale,  exchange or other disposition) is effectively  connected with the conduct
of such  trade or  business,  the  Non-U.S.  Holder,  although  exempt  from the
withholding tax discussed in the preceding paragraphs, will generally be subject
to regular United States income tax on such effectively  connected income in the
same manner as if it were a U.S. Holder. See "-- U.S. Holders" above. In lieu of
the  certificate  described in the  preceding  paragraph,  such a Holder will be
required to provide to the withholding  agent a properly  executed IRS Form 4224
(or, by January 1, 2000, a Form W-8) to claim an exemption from withholding tax.
In addition, if such Non-U.S. Holder is a foreign corporation, it may be subject
to a 30% branch  profits  tax (unless  reduced or  eliminated  by an  applicable
treaty) on its earnings and profits for the taxable  year  attributable  to such
effectively connected income, subject to certain adjustments.

     Ownership  and  Disposition  of Common  Stock.  For a discussion of the tax
consequences  of the ownership  and  disposition  of Common Stock  received by a
Non-U.S.  Holder on the conversion of a Debenture,  prospective investors should
refer to "U.S. Federal Income Tax Considerations for Non-U.S.  Holders of Common
Stock" in the Prospectus  Supplement dated July 20, 1998, to the Propectus dated
November 19, 1997, relating to the offering of Common Stock by the Company.

BACKUP WITHHOLDING AND INFORMATION REPORTING

     U.S. Holders.  Information  reporting will apply to payments of interest or
dividends  made by the Company on, and  payments of the  proceeds of the sale or
other  disposition  of,  the  Debentures  or shares of Common  Stock to  certain
noncorporate  U.S.  Holders,  and backup  withholding at a rate of 31% may apply
unless the recipient of such payment supplies a taxpayer  identification number,
certified  under penalties of perjury,  as well as certain other  information or
otherwise establishes an exemption from backup withholding.  Any amount withheld
under the backup  withholding  rules is allowable  as a credit  against the U.S.
Holder's federal income tax, provided that the required  information is provided
to the IRS.

     Non-U.S. Holders. Under current Treasury Regulations, payments on the sale,
exchange or other disposition of Debentures or shares of Common Stock made to or
through a foreign  office of a broker  generally  will not be  subject to backup
withholding.  However,  if such  broker is (i) a United  States  person,  (ii) a
controlled  foreign  corporation  for United States federal income tax purposes,
(iii) a foreign  person 50 percent or more of whose gross income is  effectively
connected  with a United  States  trade or business  for a specified  three-year
period or (iv), in the case of payments made after  December 31, 1999, a foreign
partnership  with certain  connections  to the United States,  then  information
reporting  will be  required  unless the broker has in its  records  documentary
evidence  that the  beneficial  owner is not a United  States person and certain
other  conditions  are met or the  beneficial  owner  otherwise  establishes  an
exemption.  Backup  withholding  may apply to any  payment  that such  broker is
required to report if the broker has actual knowledge that the payee is a United
States person.  Payments to or through the United States office of a broker will
be subject to backup  withholding  and information  reporting  unless the Holder
certifies,  under penalties of perjury, that it is not a United States person or
otherwise  establishes  an exemption.  Any amounts  withheld from a payment to a
Non-U.S.  Holder under the backup  withholding rules will be allowed as a credit
against such Non-U.S.  Holder's  United States  federal income tax liability and
may entitle such Holder to a refund,  provided that the required  information is
furnished to the IRS.

     Holders of  Debentures  should  consult  their tax advisers  regarding  the
application of information  reporting and backup withholding in their particular
situations,  the availability of an exemption  therefrom,  and the procedure for
obtaining such an exemption, if available.

                                      S-15

<PAGE>

                                 UNDERWRITING

     Subject to the terms and conditions set forth in an underwriting  agreement
(the  "Underwriting  Agreement"),  each  Underwriter  named below has  severally
agreed to  purchase,  and the Company has agreed to sell each  Underwriter,  the
principal  amount of Debentures set forth opposite the name of such  Underwriter
below:

<TABLE>
<CAPTION>
                                                                      PRINCIPAL AMOUNT
                                                                      ----------------
<S>                                                                   <C>
     Smith Barney Inc. ............................................
     J.P. Morgan Securities Inc. ..................................
     Donaldson, Lufkin & Jenrette Securities Corporation ..........
     Morgan Stanley & Co. Incorporated ............................
     PaineWebber Incorporated .....................................
     C.E. Unterberg, Towbin .......................................      ------------
       Total ......................................................      $200,000,000
                                                                         ============
</TABLE>

     The  Underwriters  are  obligated  to take and pay for the total  principal
amount  of  Debentures   offered   hereby  (other  than  those  covered  by  the
overallotment option described below) if any are taken.

     The  Underwriters  have advised the Company that they propose  initially to
offer the  Debentures  to the public at the price to the public set forth on the
cover page of this Prospectus Supplement. After the initial public offering, the
public offering price may be changed.

     Pursuant  to the  Underwriting  Agreement,  the  Company has granted to the
Underwriters  an  option,  exercisable  for 30 days  from  the date  hereof,  to
purchase  up to an  additional  $30,000,000  aggregate  principal  amount of the
Debentures  at the price to public less the  underwriting  discount set forth on
the cover page hereof.  The  Underwriters  may exercise  such option to purchase
solely for the purpose of covering  over-allotments,  if any, made in connection
with the Offering.

     The Company and certain of the Company's  directors and executive  officers
are agreeing that, with certain exceptions  (including  issuances by the Company
as consideration for  acquisitions),  without the prior written consent of Smith
Barney Inc., they will not, directly or indirectly,  offer to sell,  contract to
sell,  sell or  otherwise  dispose of, or announce the offering of any shares of
Common Stock or securities  convertible  into or exchangeable or exercisable for
shares  of  Common  Stock,  for a  period  of 90  days  after  the  date  of the
Underwriting  Agreement;  provided that  beginning 30 days after the date of the
Underwriting Agreement,  such officers and directors may sell limited amounts of
shares per day up to a total of 500,000  shares (taken in the aggregate and as a
group).

     The Company has agreed to indemnify the Underwriters against, or contribute
to payments that the Underwriters may be required to make in respect of, certain
liabilities, including liabilities under the Securities Act of 1933, as amended.

     The Underwriters may engage in stabilizing transactions, syndicate covering
transactions  and penalty bids in accordance  with Rule 104 under the Securities
Exchange  Act of 1934,  as amended,  in  connection  with this  Offering and the
concurrent  Common  Stock  Offering.  Stabilizing  transactions  permit  bids to
purchase the Debentures and the Common Stock so long as the stabilizing  bids do
not  exceed  a  specified  maximum.   Syndicate  covering  transactions  involve
purchases  of the  Debentures  in the open market  following  completion  of the
Offering to cover all or a portion of a syndicate short position  created by the
Underwriters  selling more  Debentures in connection with the Offering than they
are committed to purchase from the Company.  In addition,  the  Underwriters may
impose "penalty bids" under  contractual  arrangements  between the Underwriters
and dealers participating in the Offering whereby they may reclaim from a dealer
participating in the Offering the selling  concession with respect to Debentures
that are distributed in the Offering but subsequently  purchased for the account
of the Underwriters in the open market. Such stabilizing transactions, syndicate
covering  transactions  and penalty  bids may result in the  maintenance  of the
price of the  Debentures  and/or the Common  Stock at levels  above  those which
might otherwise prevail in the open market.  None of the transactions  described
in  this  paragraph  is  required  and,  if  any  are  undertaken,  they  may be
discontinued at any time.

                                      S-16

<PAGE>

     An affiliate  of Smith  Barney Inc. is the lender under the EDELAP  Bridge,
and an affiliate of J.P. Morgan  Securities Inc. is agent and a lender under the
Revolver,  each of which may be repaid with proceeds of the Offering.  The rules
of the National  Association of Securities  Dealers,  Inc. (the "NASD")  provide
that no NASD member shall participate in the offering of an issuer's  securities
where  more than 10% of the net  proceeds  are  intended  to be paid to  members
participating  in the  distribution  of the offering,  or persons  associated or
affiliated  with such  participating  members,  unless a "qualified  independent
underwriter"  shall have been  engaged on the terms  provided in such rules.  In
accordance  with this  requirement,  C.E.  Unterberg,  Towbin has  performed due
diligence  investigations  and reviewed and  participated  in the preparation of
this Prospectus Supplement.  C.E. Unterberg, Towbin will receive no compensation
in connection with its services as qualified independent underwriter.

     The  Underwriters  in the Offering are acting as underwriters in the Common
Stock Offering and from time to time, in the ordinary course of their respective
businesses, the Underwriters and their affiliates have engaged and may engage in
commercial  and  investment  banking  transactions  with  the  Company  and  its
affiliates.

     Frank Jungers, an Advisory Director for an affiliate of Donaldson, Lufkin &
Jenrette Securities Corporation, one of the Underwriters, is also a director and
stockholder of AES. Mr. Jungers beneficially owns 1,117,447 shares of the Common
Stock.

     Thomas  I. Unterberg, a Managing Director of C.E. Unterberg, Towbin, one of
the  Underwriters,  is  also a member of AES's Board of Directors. Mr. Unterberg
currently beneficially owns 1,266,381 shares of the Common Stock.

                                      S-17

<PAGE>

                                 LEGAL MATTERS

     The validity of the Debentures  offered hereby and certain matters relating
thereto and certain U.S.  federal income taxation matters will be passed upon by
Davis Polk & Wardwell,  New York, New York. Certain legal matters will be passed
upon for the Underwriters by Cahill Gordon & Reindel (a partnership  including a
professional corporation), New York, New York.

                                    EXPERTS

     The  financial   statements  and  related  financial  statements  schedules
incorporated  in this  Prospectus  Supplement  by reference  from the  Company's
Annual  Report on Form 10-K for the year  ended  December  31,  1997,  have been
audited  by  Deloitte & Touche  LLP,  independent  auditors,  as stated in their
reports,  which  are  incorporated  herein  by  reference,   and  have  been  so
incorporated  in  reliance  upon the  reports  of such  firm  given  upon  their
authority as experts in accounting and auditing.

     In addition, see "Experts" in the accompanying Prospectus.

                                      S-18

<PAGE>
<TABLE>
<CAPTION>
<S>                                                                             <C>
=====================================================                           ====================================================
     NO DEALER,  SALESPERSON OR OTHER PERSON HAS BEEN                                                                               
AUTHORIZED  TO GIVE  ANY  INFORMATION  OR TO MAKE ANY                                                                               
REPRESENTATIONS  OTHER THAN THOSE  CONTAINED  IN THIS                                                                               
PROSPECTUS SUPPLEMENT OR THE PROSPECTUS IN CONNECTION                                                                               
WITH THE OFFER MADE BY THIS PROSPECTUS SUPPLEMENT AND                                                                               
THE PROSPECTUS. IF GIVEN OR MADE, SUCH INFORMATION OR                                                $200,000,000                   
REPRESENTATIONS  MUST NOT BE  RELIED  UPON AS  HAVING                                                                               
BEEN   AUTHORIZED   BY   THE   COMPANY   OR  BY   THE                                                                               
UNDERWRITERS. NEITHER THE DELIVERY OF THIS PROSPECTUS                                                                               
SUPPLEMENT  AND  THE  PROSPECTUS  NOR ANY  SALE  MADE                                            THE AES CORPORATION                
HEREUNDER AND THEREUNDER SHALL UNDER ANY CIRCUMSTANCE                                                                               
CREATE AN  IMPLICATION  THAT THERE HAS BEEN NO CHANGE                                                                               
IN THE AFFAIRS OF THE COMPANY  SINCE THE DATE HEREOF.                                            % CONVERTIBLE JUNIOR               
THIS PROSPECTUS  SUPPLEMENT AND THE PROSPECTUS DO NOT                                          SUBORDINATED DEBENTURES              
CONSTITUTE AN OFFER OR  SOLICITATION BY ANYONE IN ANY                                                  DUE 2005                     
STATE IN WHICH  SUCH  OFFER  OR  SOLICITATION  IS NOT                                                                               
AUTHORIZED  OR IN WHICH THE PERSON  MAKING SUCH OFFER                                                                               
OR  SOLICITATION  IS  NOT  QUALIFIED  TO  DO SO OR TO                                                                               
ANYONE TO WHOM IT IS  UNLAWFUL  TO MAKE SUCH OFFER OR                                                                               
SOLICITATION.                                                                                                                       
                     -----------                                                                                                    
                  TABLE OF CONTENTS                                                                                                 
                                                                                                                                    
<CAPTION>                                                                                                                           
                                                PAGE                                              [GRAPHIC OMITTED]                 
                                                ----                            
<S>                                            <C>                              
                PROSPECTUS SUPPLEMENT                                           
                                                                                
Special Note Regarding Forward Looking                                          
  Statements ...............................    S-2                             
Offering Summary ...........................    S-3                             
Recent Developments ........................    S-4                             
Use of Proceeds ............................    S-5                             
Description of Debentures ..................    S-6                             
Common Stock Price Ranges and Dividends.        S-12                            
Certain U.S. Federal Income Tax Consider-                                                             ----------                    
  ations ...................................    S-13                                                                                
Underwriting ...............................    S-16                                            PROSPRCTUS SUPPLEMENT               
Legal Matters ..............................    S-18                                                        , 1998                  
Experts ....................................    S-18                                                                                
                                                                                                      ----------                    
                      PROSPECTUS                                                                                                    
                                                                                                                                    
Available Information ......................    1                                                                                   
Incorporation of Certain Documents by                                                                                               
  Reference ................................    1                                                                                   
Use of Proceeds ............................    2                                                SALOMON SMITH BARNEY               
Ratio of Earnings to Fixed Charges .........    2                                                                                   
The Company ................................    3                                                 J.P. MORGAN & CO.                 
Risk Factors ...............................    5                                                                                   
Description of Capital Stock ...............   12                                            DONALDSON, LUFKIN & JENRETTE           
Description of Debt Securities .............   16                                                                                   
Description of Stock Purchase Contracts                                                       MORGAN STANLEY DEAN WITTER            
  and Stock ................................   25                                                                                   
Plan of Distribution .......................   25                                              PAINEWEBBER INCORPORATED             
Legal Matters ..............................   26                                                                                   
Experts ....................................   26                                               C.E. UNTERBERG, TOWBIN              
                                                                                                                                    
=====================================================                           ====================================================

</TABLE>


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