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                               THE AES CORPORATION


                               GUARANTEE AGREEMENT


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                          Dated as of October 29, 1997


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                                TABLE OF CONTENTS

                                  -------------
                                                                            PAGE
                                                                            ----
ARTICLE 1
- ---------
     DEFINITIONS
     -----------
     SECTION 1.01.  Definitions...............................................2

ARTICLE 2
- ---------
     TRUST INDENTURE ACT
     -------------------
     SECTION 2.01.  Trust Indenture Act; Application..........................5
     SECTION 2.02.  Lists of Holders of Preferred Securities..................5
     SECTION 2.03.  Reports by the Guarantee Trust............................5
     SECTION 2.04.  Periodic Reports to Guarantee Trust.......................5
     SECTION 2.05.  Evidence of Compliance with Conditions Precedent..........6
     SECTION 2.06.  Events of Default; Waiver.................................6
     SECTION 2.07.  Disclosure of Information.................................6
     SECTION 2.08.  Conflicting Interest......................................6

ARTICLE 3
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     POWERS, DUTIES AND RIGHTS OF GUARANTEE TRUSTEE
     ----------------------------------------------
     SECTION 3.01.  Powers and Duties of the Guarantee Trustee................7
     SECTION 3.02.  Certain Rights and Duties of the Guarantee Trustee........8
     SECTION 3.03.  Not Responsible for Recitals or Issuance of Guarantee....10

ARTICLE 4
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     GUARANTEE TRUSTEE
     -----------------
     SECTION 4.01.  Qualifications...........................................10
     SECTION 4.02.  Appointment, Removal and Resignation of Guarantee
           Trustee...........................................................11

ARTICLE 5
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     GUARANTEE
     ---------
     SECTION 5.01.  Guarantee................................................12
     SECTION 5.02.  Waiver of Notice.........................................12
     SECTION 5.03.  Obligations Not Affected.................................12
     SECTION 5.04.  Enforcement of Guarantee.................................13
     SECTION 5.05.  Guarantee of Payment.....................................14
     SECTION 5.06.  Subrogation..............................................14
     SECTION 5.07.  Independent Obligations..................................14

ARTICLE 6
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     LIMITATION OF TRANSACTIONS; SUBORDINATION
     ------------------------------------------


                                       i



     SECTION 6.01.  Limitation of Transactions...............................14
     SECTION 6.02.  Subordination............................................15

ARTICLE 7
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     TERMINATION
     -----------
     SECTION 7.01.  Termination..............................................15

ARTICLE 8
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     LIMITATION OF LIABILITY; INDEMNIFICATION
     ----------------------------------------
     SECTION 8.01.  Exculpation..............................................16
     SECTION 8.02.  Indemnification..........................................16

ARTICLE 9
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     MISCELLANEOUS
     -------------
     SECTION 9.01.  Successors and Assigns...................................17
     SECTION 9.02.  Amendments...............................................17
     SECTION 9.03.  Notices..................................................17
     SECTION 9.04.  Genders..................................................18
     SECTION 9.05.  Benefit..................................................18
     SECTION 9.06.  Governing Law............................................18
     SECTION 9.07.  Counterparts.............................................18
     SECTION 9.08.  Exercise of Overallotment Option.........................18


                                       ii



                  THIS  SECURITY  HAS  NOT  BEEN   REGISTERED   UNDER  THE  U.S.
                  SECURITIES  ACT OF 1933,  AS AMENDED (THE  "SECURITIES  ACT"),
                  AND,  ACCORDINGLY,  MAY NOT BE OFFERED  OR SOLD  EXCEPT AS SET
                  FORTH IN THE FOLLOWING  SENTENCE.  BY ITS ACQUISITION  HEREOF,
                  THE  HOLDER  (1)  REPRESENTS  THAT  (A)  IT  IS  A  "QUALIFIED
                  INSTITUTIONAL  BUYER"  (AS  DEFINED  IN RULE  144A  UNDER  THE
                  SECURITIES  ACT),  (B)  IT  IS  AN  INSTITUTIONAL  "ACCREDITED
                  INVESTOR"  IN  RULE  501(a)(1),  (2),  (3)  OR (7)  UNDER  THE
                  SECURITIES ACT (AN "INSTITUTIONAL  ACCREDITED INVESTOR")),  OR
                  (C) IT IS NOT A U.S.  PERSON AND IS ACQUIRING THIS SECURITY IN
                  AN OFFSHORE  TRANSACTION  (2) AGREES THAT IT WILL NOT PRIOR TO
                  THE  EXPIRATION OF THE HOLDING  PERIOD  APPLICABLE TO SALES OF
                  THE  SECURITY  EVIDENCED  HEREBY  UNDER RULE 144(k)  UNDER THE
                  SECURITIES  ACT  (OR  ANY  SUCCESSOR  PROVISION),   RESELL  OR
                  OTHERWISE  TRANSFER  THIS  SECURITY  EXCEPT  (A) TO AES OR ANY
                  SUBSIDIARY  THEREOF,   (B)  INSIDE  THE  UNITED  STATES  TO  A
                  QUALIFIED  INSTITUTIONAL  BUYER IN  COMPLIANCE  WITH RULE 144A
                  UNDER THE  SECURITIES  ACT, (C) INSIDE THE UNITED STATES TO AN
                  INSTITUTIONAL  ACCREDITED  INVESTOR THAT, BEFORE SUCH TRANSFER
                  FURNISHES  THE  TRUSTEE  A SIGNED  LETTER  CONTAINING  CERTAIN
                  REPRESENTATIONS AND AGREEMENTS RELATING TO THE RESTRICTIONS ON
                  TRANSFER  OF THIS  SECURITY  (THE FORM OF WHICH  LETTER CAN BE
                  OBTAINED  FROM THE TRUSTEE) AND IF SUCH TRANSFER IS IN RESPECT
                  OF AN  AGGREGATE  PRINCIPAL  AMOUNT  OF  SECURITIES  LESS THAN
                  $250,000,  AN OPINION OF COUNSEL  ACCEPTABLE TO THE TRUST THAT
                  SUCH TRANSFER IS IN






                  COMPLIANCE  WITH THE  SECURITIES  ACT,  (D) OUTSIDE THE UNITED
                  STATES IN AN OFFSHORE  TRANSACTION IN COMPLIANCE WITH RULE 904
                  UNDER THE  SECURITIES  ACT, (E) PURSUANT TO THE EXEMPTION FROM
                  REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT (IF
                  AVAILABLE)  OR  (F)  PURSUANT  TO  AN  EFFECTIVE  REGISTRATION
                  STATEMENT UNDER THE SECURITIES ACT AND (3) AGREES THAT IT WILL
                  DELIVER TO EACH PERSON TO WHOM THIS SECURITY IS  TRANSFERRED A
                  NOTICE  SUBSTANTIALLY  TO THE  EFFECT OF THIS  LEGEND.  IF THE
                  PROPOSED TRANSFEREE IS AN INSTITUTIONAL  ACCREDITED  INVESTOR,
                  THE  TRANSFEROR  MUST,  BEFORE SUCH  TRANSFER,  FURNISH TO THE
                  ISSUER   SUCH   CERTIFICATIONS,   LEGAL   OPINIONS   OR  OTHER
                  INFORMATION AS IT MAY REASONABLY  REQUIRE TO CONFIRM THAT SUCH
                  TRANSFER IS BEING MADE  PURSUANT TO AN EXEMPTION  FROM OR IN A
                  TRANSACTION NOT SUBJECT TO, THE  REGISTRATION  REQUIREMENTS OF
                  THE  SECURITIES  ACT.  AS USED  HEREIN,  THE  TERMS  "OFFSHORE
                  TRANSACTION",  "UNITED  STATES"  AND  "U.S.  PERSON"  HAVE THE
                  MEANINGS  GIVEN TO THEM BY  REGULATION S UNDER THE  SECURITIES
                  ACT.


                               GUARANTEE AGREEMENT

         This GUARANTEE AGREEMENT, dated as of October 29, 1997, is executed and
delivered by The AES Corporation, a Delaware corporation (the "Guarantor"),  and
The First  National  Bank of Chicago,  a national  banking  association,  as the
initial Guarantee Trustee (as defined herein) for the benefit of






the Holders (as defined  herein) from time to time of the  Preferred  Securities
(as defined  herein) of AES Trust II, a Delaware  statutory  business trust (the
"Issuer").

         WHEREAS,  pursuant to an Amended and Restated Declaration of Trust (the
"Declaration"),  dated as of October 29,  1997 among the  trustees of the Issuer
named therein,  The AES  Corporation,  as Sponsor,  and the Holders from time to
time of undivided  beneficial  interests in the assets of the Issuer, the Issuer
may issue up to  $345,000,000  aggregate  liquidation  amount of its $2.75  Term
Convertible  Securities,  Series  B (the  "Preferred  Securities")  representing
undivided  beneficial interests in the assets of the Issuer and having the terms
set forth in Exhibit B to the  Declaration,  of which  $300,000,000  liquidation
amount of Preferred Securities are being issued as of the date hereof. Up to the
remaining  $45,000,000  liquidation amount of Preferred Securities may be issued
by the Issuer if and to the extent that the over-allotment option granted by the
Guarantor and the Issuer  pursuant to the Purchase  Agreement (as defined in the
Declaration)  is  exercised  by the  Initial  Purchasers  named in the  Purchase
Agreement.

         WHEREAS, as incentive for the Holders to purchase Preferred Securities,
the Guarantor  desires to irrevocably and  unconditionally  agree, to the extent
set  forth  herein,  to pay to the  Holders  of  the  Preferred  Securities  the
Guarantee Payments (as defined herein) and to make certain other payments on the
terms and conditions set forth herein.

         NOW,  THEREFORE,  in  consideration  of the  purchase  by  the  initial
purchasers thereof of Preferred Securities,  which purchase the Guarantor hereby
agrees shall benefit the  Guarantor,  the  Guarantor  executes and delivers this
Guarantee  Agreement  for the  benefit of the  Holders  from time to time of the
Preferred Securities.


                                    ARTICLE 1
                                   DEFINITIONS

         SECTION 1.01. Definitions. (a) Capitalized terms used in this Guarantee
Agreement  but not defined in the preamble  above have the  respective  meanings
assigned to them in this Section 1.01;

         (b) a term defined  anywhere in this  Guarantee  Agreement has the same
meaning throughout;





                                       2



         (c) all  references to "the  Guarantee  Agreement"  or "this  Guarantee
Agreement" are to this Guarantee Agreement as modified,  supplemented or amended
from time to time;

         (d) all references in this Guarantee Agreement to Articles and Sections
are to  Articles  and  Sections of this  Guarantee  Agreement  unless  otherwise
specified;

         (e) a term defined in the Trust Indenture Act has the same meaning when
used in this  Guarantee  Agreement  unless  otherwise  defined in this Guarantee
Agreement or unless the context otherwise requires; and

         (f) a reference to the singular includes the plural and vice versa.

         "Affiliate"  has the same  meaning as given to that term in Rule 405 of
the Securities Act of 1933, as amended, or any successor rule thereunder.

         "Commission" means the Securities and Exchange Commission.

         "Common  Securities"  means  the  securities   representing   undivided
beneficial interests in the assets of the Issuer,  having the terms set forth in
Exhibit C to the Declaration.

         "Common Stock" means the common stock of the Guarantor,  par value $.01
per share.

         "Covered Person" means any Holder of Preferred Securities.

         "Debentures" means the series of Junior Subordinated  Debentures issued
by the Guarantor  under the  Indenture to the Property  Trustee and entitled the
"5.50% Junior Subordinated Convertible Debentures due 2012".

         "Distributions"  means the periodic  distributions  and other  payments
payable to Holders of Preferred  Securities in accordance  with the terms of the
Preferred Securities set forth in Exhibit B to the Declaration.

         "Event of  Default"  means a  default  by the  Guarantor  on any of its
payment or other obligations under this Guarantee Agreement.

         "Guarantee   Payments"   shall   mean   the   following   payments   or
distributions, without duplication, with respect to the Preferred Securities, to
the  extent  not  paid  or made  by the  Issuer:  (i)  any  accrued  and  unpaid
Distributions  and the  redemption  price,  including  all  accrued  and  unpaid
Distributions to the date of




                                       3



redemption (the "Redemption  Price"),  with respect to the Preferred  Securities
called for  redemption  by the Issuer but only if and to the extent that in each
case the  Guarantor  has made a payment to the  Property  Trustee of interest or
principal  on  the   Debentures   and  (ii)  upon  a  voluntary  or  involuntary
dissolution,  winding-up or  termination of the Issuer (other than in connection
with the  distribution  of  Debentures  to Holders or the  redemption of all the
Preferred  Securities  upon the  maturity or  redemption  of the  Debentures  as
provided in the Declaration), the lesser of (a) the aggregate of the liquidation
amount and all accrued and unpaid  Distributions on the Preferred  Securities to
the date of payment, to the extent the Issuer has funds available  therefor,  or
(b) the amount of assets of the Issuer  remaining  available for distribution to
Holders  in  liquidation  of  the  Issuer  (in  either  case,  the  "Liquidation
Distribution").

         "Guarantee  Trustee"  means  The  First  National  Bank of  Chicago,  a
national  banking  association,  until a  Successor  Guarantee  Trustee has been
appointed and accepted such appointment  pursuant to the terms of this Guarantee
Agreement and thereafter means each such Successor Guarantee Trustee.

         "Holder" shall mean any holder,  as registered on the books and records
of  the  Issuer,  of  any  Preferred  Securities;  provided,  however,  that  in
determining  whether  the  holders  of the  requisite  percentage  of  Preferred
Securities have given any request, notice, consent or waiver hereunder, "Holder"
shall not include the Guarantor or any entity directly or indirectly controlling
or controlled by or under direct or indirect common control with the Guarantor.

         "Indemnified  Person" means the Guarantee Trustee, any Affiliate of the
Guarantee Trustee, and any officers, directors, shareholders, members, partners,
employees, representatives or agents of the Guarantee Trustee.

         "Indenture" means the Junior  Subordinated  Indenture dated as of March
1, 1997  between  the  Guarantor  and The First  National  Bank of  Chicago,  as
trustee, as supplemented by the Second  Supplemental  Indenture thereto dated as
of October 29, 1997, pursuant to which the Debentures are to be issued.

         "Majority in  liquidation  amount of the Preferred  Securities"  means,
except  as  otherwise   required  by  the  Trust  Indenture  Act,  Holder(s)  of
outstanding  Preferred Securities voting together as a single class, who are the
record owners of Preferred  Securities whose  liquidation  amount (including the
stated amount that would be paid on redemption,  liquidation or otherwise,  plus
accrued and unpaid  Distributions to the date upon which the voting  percentages
are  determined)  represents  more  than 50% of the  liquidation  amount  of all
outstanding Preferred Securities.



                                       4



         "Person" means a legal person,  including any individual,  corporation,
estate, partnership,  joint venture,  association,  joint stock company, limited
liability  company,  trust,  unincorporated  association,  or  government or any
agency or political subdivision thereof, or any other entity of whatever nature.

         "Preferred  Securities"  has the meaning set forth in the first WHEREAS
clause above.

         "Property  Trustee"  means the Person acting as Property  Trustee under
the Declaration.

         "Redemption  Price"  has the  meaning  set forth in the  definition  of
"Guarantee Payments."

         "Responsible Officer" means, with respect to the Guarantee Trustee, the
chairman of the board of  directors,  the  president,  any  vice-president,  any
assistant vice-president, the secretary, any assistant secretary, the treasurer,
any assistant  treasurer,  any trust  officer or assistant  trust officer or any
other officer of the Guarantee Trustee customarily  performing functions similar
to those performed by any of the above designated  officers and also means, with
respect to a particular  corporate trust matter,  any other officer to whom such
matter is referred  because of that officer's  knowledge of and familiarity with
the particular subject.

         "Successor  Guarantee  Trustee"  means a  successor  Guarantee  Trustee
possessing  the  qualifications  to act as a  Guarantee  Trustee  under  Section
4.01(a).

         "Trust  Indenture  Act"  means  the  Trust  Indenture  Act of 1939,  as
amended.


                                    ARTICLE 2
                               TRUST INDENTURE ACT

         SECTION 2.01.  Trust  Indenture  Act;  Application.  (a) This Guarantee
Agreement  is  subject to the  provisions  of the Trust  Indenture  Act that are
required  to be  part of this  Guarantee  Agreement  and  shall,  to the  extent
applicable, be governed by such provisions;

         (b) if and to the extent that any provision of this Guarantee Agreement
limits,  qualifies or conflicts  with the duties  imposed by ss.ss.  310 to 317,
inclusive, of the Trust Indenture Act, such imposed duties shall control; and



                                       5




         (c) the  application  of the  Trust  Indenture  Act to  this  Guarantee
Agreement  shall not  affect the nature of the  Preferred  Securities  as equity
securities  representing  undivided  beneficial  interests  in the assets of the
Issuer.

         SECTION  2.02.  Lists  of  Holders  of  Preferred  Securities.  (a) The
Guarantor  shall  provide the  Guarantee  Trustee  with such  information  as is
required  under ss.  312(a) of the Trust  Indenture  Act at the times and in the
manner provided in ss. 312(a); and

         (b) the  Guarantee  Trustee  shall  comply with its  obligations  under
ss.ss. 310(b), 311 and 312(b) of the Trust Indenture Act.

         SECTION 2.03. Reports by the Guarantee Trust.  Within 60 days after May
15 of each year,  commencing May 1998 the Guarantee Trustee shall provide to the
Holders of the Preferred  Securities  such reports as are required by ss. 313 of
the Trust  Indenture  Act, if any,  in the form,  in the manner and at the times
provided by ss. 313 of the Trust Indenture Act. The Guarantee Trustee shall also
comply with the requirements of ss. 313(d) of the Trust Indenture Act.

         SECTION 2.04.  Periodic Reports to Guarantee Trust. The Guarantor shall
provide  to the  Guarantee  Trustee,  the  Commission  and  the  Holders  of the
Preferred Securities, as applicable, such documents,  reports and information as
required  by ss.  314(a)(1)-(3)  (if  any) of the  Trust  Indenture  Act and the
compliance certificates required by ss. 314(a)(4) and (c) of the Trust Indenture
Act, any such  certificates to be provided in the form, in the manner and at the
times  required by ss.  314(a)(4)  and (c) of the Trust  Indenture Act (provided
that any  certificate  to be  provided  pursuant to ss.  314(a)(4)  of the Trust
Indenture  Act shall be provided  within 120 days of the end of each fiscal year
of the Issuer).

         SECTION 2.05.  Evidence of Compliance  with Conditions  Precedent.  The
Guarantor  shall  provide to the  Guarantee  Trustee such evidence of compliance
with any conditions precedent,  if any, provided for in this Guarantee Agreement
which  relate  to any of the  matters  set  forth  in ss.  314(c)  of the  Trust
Indenture Act. Any  certificate or opinion  required to be given pursuant to ss.
314(c) shall comply with ss. 314(e) of the Trust Indenture Act.

         SECTION  2.06.  Events of  Default;  Waiver.  (a)  Subject  to  Section
2.06(b),  Holders of Preferred  Securities may by vote of at least a Majority in
liquidation amount of the Preferred Securities,  (A) direct the time, method and
place of conducting  any  proceeding  for any remedy  available to the Guarantee
Trustee,  or  exercising  any  trust or power  conferred  upon by the  Guarantee
Trustee or (B) on behalf of the Holders of all  Preferred  Securities  waive any
past Event of Default



                                       6



and its consequences.  Upon such waiver,  any such default shall cease to exist,
and any Event of Default  arising  therefrom shall be deemed to have been cured,
for every purpose of this Guarantee  Agreement,  but no such waiver shall extend
to any  subsequent  or other  default  or Event of  Default  or impair any right
consequent thereon.

         (b) The right of any Holder of Preferred  Securities to receive payment
of the Guarantee  Payments in accordance  with this Guarantee  Agreement,  or to
institute suit for the  enforcement  of any such payment,  shall not be impaired
without the consent of each such Holder.

         SECTION 2.07. Disclosure of Information.  The disclosure of information
as to the names and  addresses  of the Holders of the  Preferred  Securities  in
accordance  with ss. 312 of the Trust  Indenture  Act,  regardless of the source
from which such  information was derived,  shall not be deemed to be a violation
of any existing  law, or any law hereafter  enacted which does not  specifically
refer to ss. 312 of the Trust Indenture Act, nor shall the Guarantee  Trustee be
held  accountable  by reason of mailing any material  pursuant to a request made
under ss. 312(b) of the Trust Indenture Act.

         SECTION 2.08.  Conflicting Interest. The Declaration shall be deemed to
be specifically described in this Guarantee Agreement for the purposes of clause
(i) of the first proviso contained in Section 310(b) of the Trust Indenture Act.


                                    ARTICLE 3
                 POWERS, DUTIES AND RIGHTS OF GUARANTEE TRUSTEE

         SECTION  3.01.  Powers and Duties of the  Guarantee  Trustee.  (a) This
Guarantee  Agreement  shall be held by the  Guarantee  Trustee  in trust for the
benefit of the Holders of the Preferred Securities.  The Guarantee Trustee shall
not transfer its right,  title and  interest in the  Guarantee  Agreement to any
Person except a Successor  Guarantee  Trustee on  acceptance  by such  Successor
Guarantee  Trustee of its appointment to act as Guarantee Trustee or to a Holder
of Preferred  Securities  exercising his or her rights pursuant to Section 5.04.
The  right,  title  and  interest  of the  Guarantee  Trustee  to the  Guarantee
Agreement shall vest automatically in each Person who may hereafter be appointed
as Guarantee Trustee in accordance with Article 4. Such vesting and cessation of
title  shall be  effective  whether  or not  conveyancing  documents  have  been
executed and delivered.



                                       7



         (b) If an Event of Default  occurs  and is  continuing,  the  Guarantee
Trustee shall enforce this Guarantee Agreement for the benefit of the Holders of
the Preferred Securities.

         (c) This  Guarantee  Agreement and all moneys  received by the Property
Trustee  hereunder in respect of the  Guarantee  Payments will not be subject to
any right, charge,  security interest, lien or claim of any kind in favor of, or
for the benefit of that Guarantee Trustee or its agents or their creditors.

         (d) The Guarantee Trustee shall, within 90 days after the occurrence of
an Event of Default  known to the  Guarantee  Trustee,  transmit by mail,  first
class  postage  prepaid,  to the holders of the Preferred  Securities,  as their
names and  addresses  appear  upon the  register,  notice of all such  Events of
Default,  unless such  defaults  shall have been cured before the giving of such
notice;  provided, that, the Guarantee Trustee shall be protected in withholding
such notice if and so long as the board of directors,  the executive  committee,
or a trust committee of directors and/or Responsible  Officers, of the Guarantee
Trustee in good faith  determine  that the  withholding of such notice is in the
interests of the Holders of the  Preferred  Securities.  The  Guarantee  Trustee
shall not be deemed to have  knowledge  of any default  except any default as to
which the Guarantee  Trustee shall have received written notice or a Responsible
Officer charged with the  administration of this Guarantee  Agreement shall have
obtained written notice.

         (e) The Guarantee Trustee shall continue to serve as a Trustee unless a
Successor  Guarantee Trustee has been appointed and accepted that appointment in
accordance with Article 4.

         SECTION 3.02. Certain Rights and Duties of the Guarantee  Trustee.  (a)
The Guarantee  Trustee,  before the  occurrence of an Event of Default and after
the curing of all Events of Default that may have occurred,  shall  undertake to
perform  only  such  duties  as are  specifically  set  forth in this  Guarantee
Agreement,  and no implied covenants shall be read into this Guarantee Agreement
against the Guarantee  Trustee.  In case an Event of Default has occurred  (that
has not been cured or waived pursuant to Section 2.06(a)), the Guarantee Trustee
shall  exercise  such of the rights and  powers  vested in it by this  Guarantee
Agreement,  and use the same  degree of care and skill in their  exercise,  as a
prudent person would exercise or use under the  circumstances  in the conduct of
his or her own affairs.

          (b) No provision  of this  Guarantee  Agreement  shall be construed to
relieve the Guarantee Trustee from liability for its own negligent  action,  its
own negligent failure to act or its own willful misconduct, except that:




                                       8



         (i) prior to the occurrence of an Event of Default and after the curing
         or waiving of all such Events of Default that may have occurred:

                  (A) the duties and obligations of the Guarantee  Trustee shall
                  be  determined  solely  by  the  express  provisions  of  this
                  Guarantee  Agreement,  and the Guarantee  Trustee shall not be
                  liable  except  for  the   performance   of  such  duties  and
                  obligations  as are  specifically  set forth in this Guarantee
                  Agreement,  and no implied  covenants or obligations  shall be
                  read into  this  Guarantee  Agreement  against  the  Guarantee
                  Trustee; and

                  (B) in the  absence of bad faith on the part of the  Guarantee
                  Trustee,  the Guarantee  Trustee may conclusively  rely, as to
                  the  truth  of  the  statements  and  the  correctness  of the
                  opinions expressed therein,  upon any certificates or opinions
                  furnished  to the  Guarantee  Trustee  and  conforming  to the
                  requirements of this Guarantee  Agreement;  but in the case of
                  any such certificates or opinions that by any provision hereof
                  are  specifically  required to be furnished  to the  Guarantee
                  Trustee,  the  Guarantee  Trustee  shall  be  under  a duty to
                  examine the same to  determine  whether or not they conform to
                  the requirements of this Guarantee Agreement;

         (ii)  the  Guarantee  Trustee  shall  not be  liable  for any  error of
         judgment made in good faith by a  Responsible  Officer of the Guarantee
         Trustee,  unless  it shall be proved  that the  Guarantee  Trustee  was
         negligent in ascertaining the pertinent facts;

         (iii) the  Guarantee  Trustee  shall not be liable with  respect to any
         action  taken or omitted to be taken by it in good faith in  accordance
         with the  direction of the Holders of Preferred  Securities as provided
         herein  relating  to the  time,  method  and  place of  conducting  any
         proceeding  for any  remedy  available  to the  Guarantee  Trustee,  or
         exercising  any trust or power  conferred  upon the  Guarantee  Trustee
         under this Guarantee Agreement; and

         (iv) no  provision  of  this  Guarantee  Agreement  shall  require  the
         Guarantee  Trustee to  expend or risk its own funds or otherwise  incur
         personal  financial  liability in the performance of any of  its duties
         or in the  exercise  of any of its rights or powers,  if it shall  have
         reasonable  ground for  believing  that the repayment of such funds  or
         liability  is not  reasonably  assured  to it under  the terms of  this
         Guarantee  Agreement  or  adequate  indemnity  against  such  risk   or
         liability is not reasonably assured to it.




                                       9



         (c) Subject to the provisions of Section 3.02(a) and (b):

         (i) whenever in the  administration  of this Guarantee  Agreement,  the
         Guarantee  Trustee  shall deem it desirable  that a matter be proved or
         established   prior  to  taking,   suffering  or  omitting  any  action
         hereunder,  the  Guarantee  Trustee  (unless  other  evidence is herein
         specifically  prescribed) may, in the absence of bad faith on its part,
         request  and rely  upon a  certificate,  which  shall  comply  with the
         provisions  of ss.  314(e) of the Trust  Indenture  Act,  signed by any
         authorized officer of the Guarantor;

         (ii) the Guarantee  Trustee (A) may consult with counsel  (which may be
         counsel to the Guarantor or any of its  Affiliates  and may include any
         of its  employees)  selected  by it in good faith and with due care and
         the written  advice or opinion of such  counsel  with  respect to legal
         matters  shall be full and complete  authorization  and  protection  in
         respect of any action  taken,  suffered or omitted by it  hereunder  in
         good faith and in reliance  thereon and in accordance  with such advice
         and  opinion  and  (B)  shall  have  the  right  at any  time  to  seek
         instructions  concerning the administration of this Guarantee Agreement
         from any court of competent jurisdiction;

         (iii) the  Guarantee  Trustee  may  execute any of the trusts or powers
         hereunder  or perform  any duties  hereunder  either  directly or by or
         through  agents or attorneys  and the  Guarantee  Trustee  shall not be
         responsible  for any  misconduct or negligence on the part of any agent
         or attorney appointed by it in good faith and with due care;

         (iv) the  Guarantee  Trustee  shall be under no obligation to  exercise
         any of the rights or powers vested in it by this  Guarantee   Agreement
         at the request or direction  of any Holders of  Preferred   Securities,
         unless  such  Holders  shall  have  offered to the  Guarantee   Trustee
         reasonable   security  and  indemnity  against  the  costs,    expenses
         (including  its  attorneys'  fees and expenses) and  liabilities   that
         might be incurred by it in complying  with such request  or  direction;
         provided that nothing  contained in this clause (iv) shall  relieve the
         Guarantee  Trustee of the obligation,  upon the occurrence of  an Event
         of Default  (which has not been cured or waived) to  exercise  such  of
         the rights and powers vested in it by this Guarantee Agreement, and  to
         use the same degree of care and skill in this  exercise,  as a  prudent
         person would exercise or use under the circumstances in the conduct  of
         his or her own affairs; and

         (v) any action taken by the Guarantee  Trustee or its agents  hereunder
         shall bind the Holders of the Preferred Securities and the signature of
         the  Guarantee  Trustee or its agents  alone  shall be  sufficient  and
         effective  to 


                                       10



         perform  any such  action;  and no third  party  shall be  required  to
         inquire as to the authority of the Guarantee  Trustee to so act, or  as
         to its  compliance  with  any of the  terms  and  provisions  of   this
         Guarantee Agreement,  both of which shall be conclusively evidenced  by
         the Guarantee Trustee's or its agent's taking such action.

         SECTION 3.03.  Not  Responsible  for Recitals or Issuance of Guarantee.
The recitals contained in this Guarantee shall be taken as the statements of the
Guarantor and the Guarantee Trustee does not assume any responsibility for their
correctness.  The Guarantee Trustee makes no  representations as to the validity
or sufficiency of this Guarantee Agreement.


                                    ARTICLE 4
                                GUARANTEE TRUSTEE

         SECTION  4.01.  Qualifications.  (a)  There  shall  at all  times  be a
Guarantee Trustee which shall:

         (i)      not be an Affiliate of the Guarantor; and

         (ii)     be a national banking association or corporation organized and
                  doing  business under the laws of the United States of America
                  or any  State  or  Territory  thereof  or of the  District  of
                  Columbia,   or  a  corporation  or  Person  permitted  by  the
                  Commission to act as an institutional  trustee under the Trust
                  Indenture  Act,   authorized   under  such  laws  to  exercise
                  corporate trust powers,  having a combined capital and surplus
                  of  at  least  $50,000,000,  and  subject  to  supervision  or
                  examination  by  Federal,  State,  Territorial  or District of
                  Columbia authority.  If such corporation  publishes reports of
                  condition  at  least  annually,  pursuant  to  law  or to  the
                  requirements  of  the   supervising  or  examining   authority
                  referred  to  above,  then for the  purposes  of this  section
                  4.01(a)(ii),   the  combined   capital  and  surplus  of  such
                  corporation  shall be deemed to be its  combined  capital  and
                  surplus as set forth in its most recent report of condition so
                  published.

         If at any  time the  Guarantee  Trustee  shall  cease  to  satisfy  the
requirements of clauses (i)-(ii) above, the Guarantee  Trustee shall immediately
resign  in the  manner  and with the  effect  set out in  Section  4.02.  If the
Guarantee  Trustee has or shall acquire any  "conflicting  interest"  within the
meaning of ss. 310(b) of the Trust




                                       11


Indenture  Act, the Guarantee  Trustee and the  Guarantor  shall in all respects
comply with the provisions of ss. 310(b) of the Trust Indenture Act.

         SECTION  4.02.  Appointment,   Removal  and  Resignation  of  Guarantee
Trustee.  (a) Subject to Section 4.02(b), the Guarantee Trustee may be appointed
or removed  without  cause at any time by the  Guarantor  except  following  the
occurrence and during the continuation of an Event of Default.

          (b) The  Guarantee  Trustee  shall not be removed in  accordance  with
Section   4.02(a)   until  a  Successor   Guarantee   Trustee   possessing   the
qualifications  to act as  Guarantee  Trustee  under  Section  4.01(a)  has been
appointed and has accepted such  appointment by written  instrument  executed by
such  Successor  Guarantee  Trustee  and  delivered  to the  Guarantor  and  the
Guarantee Trustee being removed.

          (c) The Guarantee  Trustee appointed to office shall hold office until
his successor shall have been appointed or until its removal or resignation.

          (d) The  Guarantee  Trustee may resign from office  (without  need for
prior or subsequent  accounting) by an instrument (a  "Resignation  Request") in
writing signed by the Guarantee  Trustee and delivered to the  Guarantor,  which
resignation  shall take effect upon such  delivery or upon such later date as is
specified therein; provided,  however, that no such resignation of the Guarantee
Trustee shall be effective until a Successor  Guarantee  Trustee  possessing the
qualifications  to act as  Guarantee  Trustee  under  Section  4.01(a)  has been
appointed  and has accepted  such  appointment  by  instrument  executed by such
Successor  Guarantee  Trustee  and  delivered  to  Guarantor  and the  resigning
Guarantee Trustee.

          (e) If no Successor  Guarantee  Trustee shall have been  appointed and
accepted  appointment as provided in this Section 4.02 delivery to the Guarantor
of a Resignation Request, the resigning Guarantee Trustee may petition any court
of competent jurisdiction for appointment of a Successor Guarantee Trustee. Such
court may  thereupon  after  such  notice,  if any,  as it may deem  proper  and
prescribe, appoint a Successor Guarantee Trustee.


                                       12



                                    ARTICLE 5
                                    GUARANTEE

         SECTION 5.01. Guarantee.  The Guarantor irrevocably and unconditionally
agrees to pay in full to the Holders the Guarantee Payments (without duplication
of amounts  theretofore paid by the Issuer) regardless of any defense,  right of
set-off or  counterclaim  which the Issuer may have or assert.  The  Guarantor's
obligation to make a Guarantee Payment may be satisfied by direct payment of the
required amounts by the Guarantor to the Holders or by causing the Issuer to pay
such amounts to the Holders.

         SECTION 5.02.  Waiver of Notice.  The Guarantor hereby waives notice of
acceptance of this Guarantee  Agreement and of any liability to which it applies
or may apply, presentment, demand for payment, any right to require a proceeding
first  against  the Issuer or any other  Person  before  proceeding  against the
Guarantor,  protest,  notice  of  nonpayment,  notice  of  dishonor,  notice  of
redemption and all other notices and demands.

         SECTION 5.03.  Obligations Not Affected.  The  obligations,  covenants,
agreements and duties of the Guarantor  under this Guarantee  Agreement shall in
no way be affected or impaired by reason of the  happening  from time to time of
any of the following:

              (a) the release or waiver,  by operation of law or  otherwise,  of
         the  performance  or observance by the Issuer of any express or implied
         agreement,  covenant,  term  or  condition  relating  to the  Preferred
         Securities to be performed or observed by the Issuer;

              (b) the  extension of time for the payment by the Issuer of all or
         any portion of the  Distributions  (other than an extension of time for
         payment  of  Distributions  that  results  from  the  extension  of any
         interest   payment  period  on  the  Debentures),   Redemption   Price,
         Liquidation  Distribution  (as defined in the Declaration) or any other
         sums  payable  under  the  terms  of the  Preferred  Securities  or the
         extension of time for the  performance of any other  obligation  under,
         arising out of, or in connection with, the Preferred Securities;

              (c) any failure,  omission, delay or lack of diligence on the part
         of the Holders to enforce,  assert or  exercise  any right,  privilege,
         power or remedy  conferred on the Holders  pursuant to the terms of the
         Preferred Securities,  or any action on the part of the Issuer granting
         indulgence or extension of any kind;



                                       13



              (d) the voluntary or involuntary liquidation, dissolution, sale of
         any collateral,  receivership,  insolvency,  bankruptcy, assignment for
         the benefit of creditors,  reorganization,  arrangement, composition or
         readjustment of debt of, or other similar  proceedings  affecting,  the
         Issuer or any of the assets of the Issuer;

              (e) any  invalidity  of, or defect or deficiency in, the Preferred
         Securities;

              (f) the  settlement  or compromise  of any  obligation  guaranteed
         hereby or hereby incurred; or

              (g)  any  other  circumstance   whatsoever  that  might  otherwise
         constitute a legal or equitable discharge or defense of a guarantor, it
         being the  intent of this  Section  5.03  that the  obligations  of the
         Guarantor  hereunder shall be absolute and unconditional  under any and
         all circumstances.

         There  shall be no  obligation  of the  Holders  to give  notice to, or
obtain  consent of, the  Guarantor  with respect to the  happening of any of the
foregoing.

         SECTION 5.04. Enforcement of Guarantee. The Guarantor and the Guarantee
Trustee  expressly  acknowledge  that  (i)  this  Guarantee  Agreement  will  be
deposited with the Guarantee  Trustee to be held for the benefit of the Holders;
(ii) the Guarantee Trustee has the right to enforce this Guarantee  Agreement on
behalf of the Holders;  (iii) Holders  representing  not less than a Majority in
liquidation  amount of the  Preferred  Securities  have the right to direct  the
time,  method and place of conducting any proceeding for any remedy available in
respect of this  Guarantee  Agreement  including the giving of directions to the
Guarantee  Trustee,  or exercising  any trust or other power  conferred upon the
Guarantee Trustee under this Guarantee  Agreement,  and (iv) notwithstanding the
foregoing,  if the Guarantor has failed to make any Guarantee Payment hereunder,
any Holder of Preferred  Securities  may institute a legal  proceeding  directly
against the  Guarantor  to enforce its rights  under this  Guarantee  Agreement,
without first instituting a legal proceeding  against the Issuer,  the Guarantee
Trustee, or any other Person.

         SECTION 5.05. Guarantee of Payment.  This Guarantee Agreement creates a
guarantee of payment and not merely of collection. This Guarantee Agreement will
not be discharged  except by payment of the Guarantee  Payments in full (without
duplication of amounts theretofore paid by the Issuer).



                                       14



         SECTION 5.06. Subrogation. The Guarantor shall be subrogated to all (if
any) rights of the Holders  against the Issuer in respect of any amounts paid to
the Holders by the Guarantor under this Guarantee Agreement;  provided, however,
that the  Guarantor  shall not  (except  to the  extent  required  by  mandatory
provisions  of law) be entitled to enforce or exercise  any rights  which it may
acquire  by  way  of  subrogation  or  any  indemnity,  reimbursement  or  other
agreement,  in all cases as a result of payment under this Guarantee  Agreement,
if, at the time of any such  payment,  any amounts are due and unpaid under this
Guarantee  Agreement.  If any amount shall be paid to the Guarantor in violation
of the preceding sentence, the Guarantor agrees to hold such amount in trust for
the Holders and to pay over such amount to the Holders.

         SECTION 5.07. Independent Obligations.  The Guarantor acknowledges that
its obligations  hereunder are independent of the obligations of the Issuer with
respect to the Preferred  Securities  and that the Guarantor  shall be liable as
principal and as debtor  hereunder to make  Guarantee  Payments  pursuant to the
terms of this Guarantee  Agreement  notwithstanding  the occurrence of any event
referred to in subsections (a) through (g), inclusive, of Section 5.03 hereof.


                                    ARTICLE 6
                    LIMITATION OF TRANSACTIONS; SUBORDINATION

         SECTION  6.01.  Limitation  of  Transactions.  So long as any Preferred
Securities remain  outstanding,  the Guarantor will not declare or pay dividends
on, or redeem,  purchase,  acquire or make a distribution or liquidation payment
with  respect  to,  any of its  common  stock  or  preferred  stock  or make any
guarantee payment with respect thereto or make any payment of interest,  premium
(if any) or principal on any debt securities  issued by the Guarantor which rank
pari passu with or junior to the  Debentures,  if at such time (i) the Guarantor
shall be in default  with  respect to its  Guarantee  Payments or other  payment
obligations hereunder, (ii) there shall have occurred any event of default under
the  Declaration or (iii) the Guarantor shall have given notice of its selection
of an Extension  Period (as defined in the  Indenture)  and such period,  or any
extension thereof, is continuing;  provided that the foregoing will not apply to
any stock dividends paid by the Guarantor in Common Stock. In addition,  so long
as any Preferred  Securities remain  outstanding,  the Guarantor (i) will remain
the sole direct or indirect owner of all of the  outstanding  Common  Securities
and shall not cause or permit the Common Securities to be transferred  except to
the extent such  transfer is permitted  under  Section 9.01 of the  Declaration;
provided that any permitted  successor of the Guarantor  under the Indenture may
succeed to the Guarantor's  ownership of the Common Securities and (ii) will use
reasonable efforts to cause




                                       15


the  Issuer to  continue  to be treated  as a grantor  trust for  United  States
federal  income  tax  purposes  except  in  connection  with a  distribution  of
Debentures as provided in the Declaration.

         SECTION 6.02.  Subordination.  This Guarantee Agreement will constitute
an unsecured  obligation  of the  Guarantor  and will rank (i)  subordinate  and
junior in right of payment to all other liabilities of the Guarantor,  including
the Debentures,  except those made pari passu herewith or subordinate  hereto by
their  terms,  and (ii)  pari  passu in right of  payment  with the most  senior
preferred  stock  issued,  from time to time,  if any, by the Guarantor and with
respect to obligations under other guarantee  agreements which the Guarantor may
enter into from time to time to the extent that such agreements shall be entered
into in substantially  the form hereof and provide for comparable  guarantees by
the Guarantor of payment on preferred securities issued by other AES Trusts.


                                    ARTICLE 7
                                   TERMINATION

         SECTION 7.01. Termination. This Guarantee Agreement shall terminate and
be of no further force and effect upon full payment of the  Redemption  Price of
all Preferred  Securities,  or upon the distribution of Debentures to Holders of
Preferred  Securities and Common Securities in exchange for all of the Preferred
Securities and Common Securities, or upon full payment of the amounts payable in
accordance with the Declaration upon liquidation of the Issuer.  Notwithstanding
the foregoing, this Guarantee Agreement will continue to be effective or will be
reinstated,  as the case may be, if at any time any Holder must restore  payment
of any sums paid with  respect to the  Preferred  Securities  or this  Guarantee
Agreement.


                                    ARTICLE 8
                    LIMITATION OF LIABILITY; INDEMNIFICATION

         SECTION 8.01.  Exculpation.  (a) No Indemnified Person shall be liable,
responsible  or  accountable  in damages or  otherwise  to the  Guarantor or any
Covered  Person for any loss,  damage or claim  incurred by reason of any act or
omission  performed or omitted by such Indemnified Person in good faith and in a
manner such Indemnified Person reasonably believed to be within the scope of the
authority conferred on such Indemnified Person by this Guarantee Agreement or by
law, except that an Indemnified Person shall be liable for any such loss, damage
or claim incurred by reason of such Indemnified  Person's  negligence or willful
misconduct with respect to such acts or omissions.



                                       16



         (b) An Indemnified  Person shall be fully  protected in relying in good
faith upon the records of the  Guarantor  and upon such  information,  opinions,
reports or statements presented to the Guarantor by any Person as to matters the
Indemnified   Person   reasonably   believes  are  within  such  other  Person's
professional or expert competence and who has been selected with reasonable care
by or on behalf of the Guarantor,  including information,  opinions,  reports or
statements  as to the value  and  amount of the  assets,  liabilities,  profits,
losses,  or any other facts pertinent to the existence and amount of assets from
which Distributions to Holders of Preferred Securities might properly be paid.

         SECTION 8.02.  Indemnification.  (a) To the fullest extent permitted by
applicable law, the Guarantor shall indemnify and hold harmless each Indemnified
Person from and against any loss,  damage or claim incurred by such  Indemnified
Person by reason of any act or omission performed or omitted by such Indemnified
Person in good faith and in a manner such Indemnified Person reasonably believed
to be within the scope of authority conferred on such Indemnified Person by this
Guarantee  Agreement,  except that no Indemnified Person shall be entitled to be
indemnified in respect of any loss, damage or claim incurred by such Indemnified
Person by reason of negligence or willful  misconduct  with respect to such acts
or omissions.

         (b) To  the  fullest  extent  permitted  by  applicable  law,  expenses
(including legal fees) incurred by an Indemnified Person in defending any claim,
demand,  action, suit or proceeding shall, from time to time, be advanced by the
Guarantor prior to the final disposition of such claim, demand,  action, suit or
proceeding  upon receipt by the Guarantor of an  undertaking  by or on behalf of
the  Indemnified  Person to repay such amount if it shall be determined that the
Indemnified  Person is not entitled to be  indemnified  as authorized in Section
8.02(a).

         (c) The  provisions of this Article shall  survive the  termination  of
this Guarantee Agreement or the resignation or removal of the Guarantee Trustee.


                                    ARTICLE 9
                                  MISCELLANEOUS

         SECTION 9.01.  Successors  and Assigns.  All  guarantees and agreements
contained in this  Guarantee  Agreement  shall bind the  successors,  assignees,
receivers,  trustees and representatives of the Guarantor and shall inure to the
benefit of the Holders of the Preferred  Securities then outstanding.  Except in
connection with a consolidation,  merger or sale involving the Guarantor that is




                                       17


permitted under Article Ten of the Indenture, the Guarantor shall not assign its
obligations hereunder.

         SECTION 9.02.  Amendments.  Except with respect to any changes which do
not adversely  affect the rights of Holders (in which case no consent of Holders
will be required),  this Guarantee  Agreement may only be amended with the prior
approval of the Holders of not less than a Majority in liquidation amount of the
Preferred  Securities.  The  provisions  of  Section  12.02  of the  Declaration
concerning meetings of Holders shall apply to the giving of such approval.

         SECTION  9.03.  Notices.  Any  notice,  request or other  communication
required or permitted to be given hereunder shall be in writing,  duly signed by
the party giving such notice, and delivered, telecopied or mailed by first class
mail as follows:

         (a) if given to the  Guarantor,  to the address set forth below or such
         other address as the Guarantor may give notice of to the Holders:

                  The AES Corporation
                  1001 North 19th Street
                  Arlington, Virginia  22209
                  Facsimile No.: (703) 528-4510
                  Attention:  General Counsel and Secretary

         (b) if given to the Guarantee  Trustee,  to the address set forth below
         or such other address as the  Guarantee  Trustee may give notice to the
         Holders:

                  The First National Bank of Chicago
                  One First National Plaza, Suite 0126
                  Chicago, Illinois 60670-0126
                  Attention: Corporate Trust Administration
                  Telecopy: (312) 407-1708

         (c) if given to any Holder of Preferred Securities,  at the address set
         forth on the books and records of the Issuer.

All  notices  hereunder  shall be deemed to have been  given  when  received  in
person,  telecopied  with  receipt  confirmed,  or mailed by first  class  mail,
postage prepaid except that if a notice or other document is refused delivery or
cannot be delivered  because of a changed  address of which no notice was given,
such notice or other document shall be deemed to have been delivered on the date
of such refusal or inability to deliver.



                                       18


         SECTION 9.04. Genders. The masculine,  feminine and neuter genders used
herein shall include the masculine, feminine and neuter genders.

         SECTION  9.05.  Benefit.  This  Guarantee  Agreement  is solely for the
benefit  of the  Holders  and  subject  to  Section  3.01(a)  is not  separately
transferable from the Preferred Securities.

         SECTION 9.06. Governing Law. THIS GUARANTEE AGREEMENT SHALL BE GOVERNED
BY AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW
YORK (WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAWS).

         SECTION 9.07. Counterparts. This Guarantee Agreement may be executed in
counterparts,  each of which shall be an original;  but such counterparts  shall
together constitute one and the same instrument.

         SECTION 9.08.  Exercise of Overallotment  Option.  If and to the extent
that  Preferred  Securities  are  issued  by the  Issuer  upon  exercise  of the
overallotment option referred to the second WHEREAS clause, the Guarantor agrees
to give prompt notice  thereof to the Guarantee  Trustee but the failure to give
such notice shall not relieve the Guarantor of any of its obligations hereunder.



                                       19



         THIS GUARANTEE AGREEMENT is executed as of the day and year first above
written.

                                        The AES Corporation



                                        By:   /s/ Barry Sharp
                                           -------------------------------------
                                              Name:  Barry Sharp
                                              Title: Vice President and Chief
                                                     Financial Officer

                                        The First National Bank of Chicago
                                          As Guarantee Trustee



                                        By:   /s/ Mary Fonti
                                           -------------------------------------
                                              Name:   Mary Fonti
                                              Title:  Assistant Vice President



                                       20