EXHIBIT 4.7.1(r)





Upon recording, return to:
Ms. Shawne M. Keenan
Sutherland Asbill & Brennan LLP
999 Peachtree Street, N.E.
Atlanta, Georgia 30309-3996


        PURSUANT TO ss.44-14-35.1 OF OFFICIAL CODE OF GEORGIA ANNOTATED,
                            THIS INSTRUMENT EMBRACES,
   COVERS AND CONVEYS SECURITY TITLE TO AFTER-ACQUIRED PROPERTY OF THE GRANTOR

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                          OGLETHORPE POWER CORPORATION
                      (AN ELECTRIC MEMBERSHIP CORPORATION),
                                    GRANTOR,

                                       to

                                 SUNTRUST BANK,
                                     TRUSTEE


                            SEVENTEENTH SUPPLEMENTAL
                                    INDENTURE


                                 Relating to the
                            Series 2002A (Burke) Note


                           Dated as of October 1, 2002


                           FIRST MORTGAGE OBLIGATIONS

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     THIS SEVENTEENTH  SUPPLEMENTAL  INDENTURE,  dated as of October 1, 2002, is
between  OGLETHORPE  POWER  CORPORATION  (AN ELECTRIC  MEMBERSHIP  CORPORATION),
formerly  known  as  Oglethorpe  Power   Corporation  (An  Electric   Membership
Generation  &  Transmission  Corporation),  an electric  membership  corporation
organized  and  existing  under the laws of the  State of  Georgia,  as  Grantor
(hereinafter  called  the  "Company"),  and  SUNTRUST  BANK,  formerly  known as
SunTrust Bank, Atlanta, a banking  corporation  organized and existing under the
laws of the State of Georgia, as Trustee (in such capacity, the "Trustee").

     WHEREAS,  the Company has heretofore  executed and delivered to the Trustee
an  Indenture,  dated as of March 1,  1997  (hereinafter  called  the  "Original
Indenture";  the  Original  Indenture,  as  heretofore,   hereby  and  hereafter
supplemented and modified,  being herein sometimes called the "Indenture"),  for
the  purpose  of  securing  its  Existing  Obligations  and  providing  for  the
authentication  and delivery of Additional  Obligations by the Trustee from time
to time  under the  Indenture  (capitalized  terms  used  herein  shall have the
meanings  ascribed to them in the Original  Indenture as provided in Section 2.1
hereof);

     WHEREAS,  the Development  Authority of Burke County (the  "Authority") has
issued  $92,130,000 in aggregate  principal  amount of Development  Authority of
Burke County  Pollution  Control  Revenue Bonds  (Oglethorpe  Power  Corporation
Vogtle  Project),  Series 1992 (the  "Series 1992 Bonds") for the benefit of the
Company;

     WHEREAS,  the Series  1992 Bonds have been  defeased  with the  proceeds of
commercial paper notes issued by the Company, which proceeds were deposited into
an escrow  account (the  "Defeasance  Escrow")  established  for the purposes of
paying  principal of and interest on the Series 1992 Bonds as due and  redeeming
such Series 1992 Bonds on their earliest call date;

     WHEREAS, certain of the commercial paper notes issued to defease the Series
1992 Bonds were refinanced  with the proceeds of a loan from CoBank,  ACB to the
Company in an original principal amount of $46,065,000 (the "CoBank Loan");

     WHEREAS, certain of the commercial paper notes issued to defease the Series
1992 Bonds were  refinanced  with the proceeds of a loan from the National Rural
Utilities  Cooperative  Finance  Corporation  to  the  Company,  in an  original
principal amount of $46,065,000 (the "CFC Loan" and collectively with the CoBank
Loan, the "Defeasance Loans");

     WHEREAS,  the Series  1992  Bonds are  maturing  on or subject to  optional
redemption  beginning  January  1,  2003 and can be  refunded  within 90 days of
January  1,  2003  by the  issuance  of  the  Series  2002A  (Burke)  Bonds  (as
hereinafter defined) by the Authority for the benefit of the Company;

     WHEREAS,  the  Authority  has  agreed  to issue  $71,990,000  in  aggregate
principal  amount of  Development  Authority of Burke County  Pollution  Control
Revenue Bonds (Oglethorpe Power Corporation  Vogtle Project),  Series 2002A (the
"Series  2002A  (Burke)  Bonds"),  the  proceeds  from the sale of which will be
loaned to the  Company  pursuant to that  certain  Loan  Agreement,  dated as of



October  1, 2002 (the  "Series  2002A  (Burke)  Loan  Agreement"),  between  the
Authority and the Company;

     WHEREAS, the Company's obligation to repay the proceeds of the Series 2002A
(Burke) Loan  Agreement is evidenced by that certain  Series 2002A (Burke) Note,
dated the date of its authentication (the "Series 2002A (Burke) Note"), from the
Company to SunTrust  Bank,  as trustee  (in such  capacity,  the  "Series  2002A
(Burke)  Trustee"),  as assignee  and pledgee of the  Authority  pursuant to the
Trust  Indenture,  dated as of  October  1,  2002  (the  "Series  2002A  (Burke)
Indenture"), between the Authority and the Series 2002A (Burke) Trustee;

     WHEREAS,  the amounts on deposit in the  Defeasance  Escrow will be used to
repay and redeem all of the outstanding Series 1992 Bonds on January 1, 2003;

     WHEREAS,  the  proceeds of the Series 2002A  (Burke)  Bonds will be used to
repay a portion of the amounts outstanding on the Defeasance Loans;

     WHEREAS,  the  Company  desires to execute  and  deliver  this  Seventeenth
Supplemental  Indenture,  in  accordance  with the  provisions  of the  Original
Indenture, for the purpose of providing for the creation and designation of that
certain Series 2002A (Burke) Note as an Additional Obligation and specifying the
form and provisions thereof;

     WHEREAS,  Section 12.1 of the Original Indenture provides that, without the
consent of the Holders of any of the Obligations,  the Company,  when authorized
by a Board Resolution,  and the Trustee, may enter into Supplemental  Indentures
for the purposes and subject to the  conditions  set forth in said Section 12.1;
and

     WHEREAS,  all acts and  proceedings  required by law and by the Articles of
Incorporation  and Bylaws of the Company necessary to secure under the Indenture
the payment of the principal of (and premium, if any) and interest on the Series
2002A (Burke) Note, to make the Series 2002A (Burke) Note,  when executed by the
Company,  authenticated and delivered by the Trustee and duly issued, the valid,
binding and legal  obligation of the Company,  and to constitute the Indenture a
valid and binding  lien for the security of the Series 2002A  (Burke)  Note,  in
accordance  with its terms,  have been done and  taken;  and the  execution  and
delivery of this  Seventeenth  Supplemental  Indenture  has been in all respects
duly authorized by the Company;

     NOW, THEREFORE, THIS SEVENTEENTH SUPPLEMENTAL INDENTURE WITNESSES, that, to
secure the payment of the principal of (and premium, if any) and interest on the
Outstanding  Secured  Obligations,  including,  when  issued,  the Series  2002A
(Burke)  Note,  to  confirm  the lien of the  Indenture  upon the Trust  Estate,
including property  purchased,  constructed or otherwise acquired by the Company
since the date of execution of the Original Indenture,  to secure performance of
the covenants therein and herein contained,  to declare the terms and conditions
on which the Series 2002A (Burke) Note is secured,  and in  consideration of the
premises thereof and hereof, the Company by these presents does grant,  bargain,
sell,  alienate,   remise,   release,   convey,  assign,   transfer,   mortgage,
hypothecate, pledge, set over and confirm to the Trustee, and its successors and
assigns in the trust created thereby and hereby, in trust, all property, rights,


                                       2


privileges  and  franchises  of the Company of the  character  described  in the
Granting Clauses of the Original Indenture, including all such property, rights,
privileges and  franchises  acquired since the date of execution of the Original
Indenture,  including,  without limitation,  all property described in Exhibit A
attached  hereto,  subject to all  exceptions,  reservations  and matters of the
character  referred  to in the  Indenture,  and does grant a  security  interest
therein for the purposes  expressed herein and in the Original Indenture subject
in all cases to Sections  5.2 and 11.2 B of the  Original  Indenture  and to the
rights of the Company  under the Original  Indenture,  including  the rights set
forth in Article V thereof;  but expressly excepting and excluding from the lien
and  operation of the Indenture  all  properties  of the character  specifically
excepted  as  "Excepted  Property"  or  "Excludable  Property"  in the  Original
Indenture to the extent contemplated thereby.

     PROVIDED, HOWEVER, that if, upon the occurrence of an Event of Default, the
Trustee,  or any separate trustee or co-trustee  appointed under Section 9.14 of
the Original Indenture or any receiver appointed pursuant to statutory provision
or order of court,  shall have entered into  possession of all or  substantially
all of the Trust Estate,  all the Excepted Property  described or referred to in
Paragraphs  A through H,  inclusive,  of  "Excepted  Property"  in the  Original
Indenture then owned or thereafter  acquired by the Company,  shall immediately,
and, in the case of any Excepted Property described or referred to in Paragraphs
I, J, L, N and P of "Excepted Property" in the Original Indenture (excluding the
property  described in Section 2 of Exhibit B in the Original  Indenture),  upon
demand of the Trustee or such other trustee or receiver,  become  subject to the
lien of the  Indenture  to the extent  permitted by law, and the Trustee or such
other trustee or receiver may, to the extent  permitted by law, at the same time
likewise take possession thereof,  and whenever all Events of Default shall have
been cured and the  possession of all or  substantially  all of the Trust Estate
shall have been restored to the Company,  such Excepted  Property shall again be
excepted and excluded from the lien of the Indenture to the extent and otherwise
as hereinabove set forth and as set forth in the Indenture.

     The Company  may,  however,  pursuant to the  Granting  Clause Third of the
Original  Indenture,  subject to the lien of the Indenture any Excepted Property
or Excludable  Property,  whereupon the same shall cease to be Excepted Property
or Excludable Property.

     TO HAVE AND TO HOLD all such  property,  rights,  privileges and franchises
hereby  and  hereafter  (by  Supplemental   Indenture  or  otherwise)   granted,
bargained, sold, alienated, remised, released, conveyed, assigned,  transferred,
mortgaged,  hypothecated,  pledged,  set  over or  confirmed  as  aforesaid,  or
intended,  agreed  or  covenanted  so to be,  together  with all the  tenements,
hereditaments and appurtenances  thereto appertaining (said properties,  rights,
privileges and franchises, including any cash and securities hereafter deposited
or required to be deposited  with the Trustee (other than any such cash which is
specifically  stated in the Indenture not to be deemed part of the Trust Estate)
being  part of the Trust  Estate),  unto the  Trustee,  and its  successors  and
assigns in the trust herein created, forever.

     SUBJECT,  HOWEVER,  to (i)  Permitted  Exceptions  and  (ii) to the  extent
permitted  by Section 13.6 of the  Original  Indenture as to property  hereafter
acquired (a) any duly  recorded or perfected  prior  mortgage or other lien that
may exist thereon at the date of the acquisition  thereof by the Company and (b)
purchase  money  mortgages,  other  purchase  money  liens,  chattel  mortgages,


                                       3


conditional sales agreements or other title retention  agreements created by the
Company at the time of acquisition thereof.

     BUT IN  TRUST,  NEVERTHELESS,  with  power  of  sale,  for  the  equal  and
proportionate  benefit and  security of the Holders from time to time of all the
Outstanding Secured Obligations without any priority of any such Obligation over
any  other  such  Obligation  and for the  enforcement  of the  payment  of such
Obligations in accordance with their terms.

     UPON CONDITION that, until the happening of an Event of Default and subject
to the provisions of Article V of the Original Indenture,  and not in limitation
of the rights elsewhere provided in the Original Indenture, including the rights
set forth in Article V of the Original Indenture, the Company shall be permitted
to (i) possess and use the Trust  Estate,  except cash,  securities,  Designated
Qualifying  Securities and other personal property deposited,  or required to be
deposited,  with the  Trustee,  (ii) explore for,  mine,  extract,  separate and
dispose of coal, ore, gas, oil and other minerals,  and harvest standing timber,
and (iii) receive and use the rents, issues, profits, revenues and other income,
products and proceeds of the Trust Estate.

     THE  INDENTURE,  INCLUDING  THIS  SEVENTEENTH  SUPPLEMENTAL  INDENTURE,  is
intended to operate and is to be construed as a deed passing  title to the Trust
Estate and is made under the  provisions  of the  existing  laws of the State of
Georgia  relating  to deeds to secure  debt,  and not as a  mortgage  or deed of
trust, and is given to secure the Outstanding  Secured  Obligations.  Should the
indebtedness  secured by the Indenture be paid according to the tenor and effect
thereof  when the same shall  become  due and  payable  and  should the  Company
perform all covenants therein  contained in a timely manner,  then the Indenture
shall be canceled and surrendered.

     AND IT IS HEREBY COVENANTED AND DECLARED that the Series 2002A (Burke) Note
is to be  authenticated  and  delivered  and the Trust  Estate is to be held and
applied by the  Trustee,  subject to the  covenants,  conditions  and trusts set
forth  herein and in the  Indenture,  and the Company  does hereby  covenant and
agree to and with the Trustee,  for the equal and  proportionate  benefit of all
Holders of the Outstanding Secured Obligations, as follows:

                                    ARTICLE I

                        THE SERIES 2002A (BURKE) NOTE AND
                       CERTAIN PROVISIONS RELATING THERETO

Section 1.1       Authorization and Terms of the Series 2002A (Burke) Note.

     There shall be created and established an Additional Obligation in the form
of a  promissory  note known as and  entitled the "Series  2002A  (Burke)  Note"
(hereinafter  referred to as the "Series 2002A (Burke) Note"),  the form,  terms
and conditions of which shall be  substantially as set forth in this Section and
Section 1.2. The  aggregate  principal  face amount of the Series 2002A  (Burke)
Note which shall be  authenticated  and delivered and  Outstanding is limited to
$71,990,000.



                                       4


     The   Series   2002A   (Burke)   Note  shall  be  dated  the  date  of  its
authentication.  The Series  2002A  (Burke) Note shall mature on January 1, 2018
and shall bear interest from the date of its  authentication  to the date of its
maturity at rates  calculated as provided for in the form of note  prescribed by
Section 1.2. The Series 2002A (Burke) Note shall be authenticated  and delivered
to, and made  payable to,  SunTrust  Bank,  as trustee,  in its  capacity as the
Series 2002 (Burke) Trustee.

     All  payments  made on the Series  2002A  (Burke) Note shall be made to the
Series 2002  (Burke)  Trustee at its  principal  office in  Atlanta,  Georgia in
lawful money of the United States of America which will be immediately available
on the date payment is due.

Section 1.2       Form of the Series 2002A (Burke) Note.

     The Series 2002A  (Burke)  Note,  including  the  Trustee's  authentication
certificate  to be  executed  on  such  Series  2002A  (Burke)  Note,  shall  be
substantially  in the form of Exhibit B attached  hereto,  with such appropriate
insertions,  omissions,  substitutions  and other  variations as are required or
permitted in the Indenture.


                                   ARTICLE II

                                  MISCELLANEOUS

Section 2.1       This  Seventeenth Supplemental Indenture is executed and shall
be construed as an indenture  supplemental to the Original Indenture,  and shall
form a part thereof, and the Original Indenture,  as heretofore supplemented and
as hereby supplemented and modified,  is hereby confirmed.  Except to the extent
inconsistent  with the  express  terms  hereof,  all of the  provisions,  terms,
covenants  and  conditions  of the  Indenture  shall be applicable to the Series
2002A (Burke) Note to the same extent as if specifically  set forth herein.  All
references  herein to Sections,  definitions or other provisions of the Original
Indenture shall be to such Sections,  definitions  and other  provisions as they
may be amended or  modified  from time to time  pursuant to the  Indenture.  All
capitalized terms used in this Seventeenth Supplemental Indenture shall have the
same meanings ascribed to them in the Original Indenture,  except in cases where
the context clearly indicates otherwise.

Section 2.2       All  recitals in  this Seventeenth  Supplemental Indenture are
made by the  Company  only  and not by the  Trustee;  and all of the  provisions
contained  in the  Original  Indenture,  in respect of the  rights,  privileges,
immunities,  powers and duties of the  Trustee  shall be  applicable  in respect
hereof as fully and with like effect as if set forth herein in full.

Section 2.3       Whenever in this Seventeenth Supplemental Indenture any of the
parties hereto is named or referred to, this shall, subject to the provisions of
Articles  IX and  XI of  the  Original  Indenture,  be  deemed  to  include  the
successors  and assigns of such party,  and all the covenants and  agreements in
this  Seventeenth  Supplemental  Indenture  contained  by or on  behalf  of  the
Company, or by or on behalf of the Trustee shall, subject as aforesaid, bind and
inure to the  respective  benefits of the  respective  successors and assigns of


                                       5


such parties, whether so expressed or not.

Section 2.4       Nothing in this Seventeenth Supplemental Indenture,  expressed
or implied, is intended,  or shall be construed,  to confer upon, or to give to,
any person,  firm or corporation,  other than the parties hereto and the Holders
of the Outstanding Secured  Obligations,  any right, remedy or claim under or by
reason of this Seventeenth  Supplemental  Indenture or any covenant,  condition,
stipulation,  promise or agreement  hereof,  and all the covenants,  conditions,
stipulations, promises and agreements in this Seventeenth Supplemental Indenture
contained  by or on behalf of the  Company  shall be for the sole and  exclusive
benefit  of the  parties  hereto,  and of the  Holders  of  Outstanding  Secured
Obligations.

Section 2.5       This  Seventeenth  Supplemental  Indenture  may be executed in
several counterparts, each of such counterparts shall for all purposes be deemed
to be an original, and all such counterparts,  or as many of them as the Company
and the Trustee shall preserve  undestroyed,  shall together  constitute but one
and the same instrument.

Section 2.6       To  the extent  permitted  by applicable law, this Seventeenth
Supplemental  Indenture shall be deemed to be a Security Agreement and Financing
Statement  whereby the Company grants to the Trustee a security  interest in all
of the Trust  Estate  that is personal  property  or fixtures  under the Uniform
Commercial Code, as adopted or hereafter adopted in one or more of the states in
which any part of the  properties  of the  Company  are  situated.  The  mailing
address of the Company,

as debtor, is:                      2100 East Exchange Place
                                    P. O. Box 1349
                                    Tucker, Georgia 30085-1349,

and the mailing address of the Trustee, as secured party, is:

                                    SunTrust Bank
                                    25 Park Place
                                    Atlanta, Georgia 30303-2900.

                                    [Signatures on Next Page.]



                                       6


     IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this  Seventeenth
Supplemental  Indenture  to be duly  executed  under seal as of the day and year
first written above.

Company:                              OGLETHORPE POWER
                                      CORPORATION (AN ELECTRIC
                                      MEMBERSHIP  CORPORATION),  an
                                      electric membership corporation organized
                                      under the laws of the State of Georgia


                                      By:      /s/ Thomas A. Smith
                                         ---------------------------------------
                                           Thomas A. Smith
                                           President and Chief Executive Officer


Signed, sealed and delivered          Attest:  /s/ Patricia N. Nash
by the Company in the presence of:           -----------------------------------
                                             Patricia N. Nash
                                             Secretary

     /s/ Reginald T. O'Shields
- ------------------------------
Witness

     /s/ Thomas J. Brendiar
- ------------------------------
Notary Public                                                 [CORPORATE SEAL]

(Notarial Seal)

My commission expires:     October 22, 2004
                       ------------------------------




                      [Signatures Continued on Next Page.]



                                       7





                   [Signatures Continued from Previous Page.]



Trustee:                                  SUNTRUST  BANK, a banking corporation
                                          organized and existing under the laws
                                          of the State of Georgia


                                          By:   /s/ B.A. Donaldson
                                             -----------------------------------
Signed, sealed and delivered                  B.A. Donaldson
by the Trustee in the                         Vice President
presence of:

                                          By:   /s/ Leigh S. Mullis
                                             -----------------------------------
     /s/ Tim Speakman                         Leigh S. Mullis
- -------------------------------               Vice President
Witness

     /s/ Kelly A. Lennon
- -------------------------------
Notary Public                                     [BANK SEAL]

(Notarial Seal)

My commission expires:            July 12, 2003
                      ----------------------------------------



                                       8




                                    Exhibit A
                                    ---------

     All  property of the Company in the Counties of Appling,  Ben Hill,  Burke,
Carroll,  Clarke,  Cobb, DeKalb,  Floyd,  Fulton,  Heard,  Jackson,  Monroe, and
Toombs, State of Georgia.

















                                      A-1




                                    Exhibit B
                                    ---------

                       [Form of Series 2002A (Burke) Note]

THIS NOTE IS  NON-TRANSFERABLE  EXCEPT AS MAY BE REQUIRED TO EFFECT ANY TRANSFER
TO ANY SUCCESSOR TRUSTEE UNDER THE TRUST INDENTURE, DATED AS OF OCTOBER 1, 2002,
BETWEEN THE DEVELOPMENT AUTHORITY OF BURKE COUNTY AND SUNTRUST BANK, AS TRUSTEE.

                          OGLETHORPE POWER CORPORATION
                      (AN ELECTRIC MEMBERSHIP CORPORATION)

                SERIES 2002A (BURKE) NOTE DATE: OCTOBER __, 2002

                                (VOGTLE PROJECT)

     OGLETHORPE   POWER   CORPORATION  (AN  ELECTRIC   MEMBERSHIP   CORPORATION)
("Oglethorpe"),  an electric membership corporation organized and existing under
the laws of the State of Georgia, for value received and in consideration of the
agreement of the Development  Authority of Burke County (the "Burke  Authority")
to issue $71,990,000 in aggregate  principal amount of Development  Authority of
Burke County  Pollution  Control  Revenue Bonds  (Oglethorpe  Power  Corporation
Vogtle  Project),  Series  2002A (the  "Series  2002A  (Burke)  Bonds"),  hereby
promises  to pay to SunTrust  Bank (the  "Series  2002A  (Burke)  Trustee"),  as
assignee  and  pledgee  of the Burke  Authority,  acting  pursuant  to the Trust
Indenture,  dated as of October 1, 2002,  from the Burke Authority to the Series
2002 (Burke) Trustee (the "Series 2002A (Burke) Indenture"), or its successor in
trust,  the principal sum of $71,990,000,  together with interest and prepayment
premium (if any) thereon as follows:

         (a) on or before each  Interest  Payment Date (as defined in the Series
2002A  (Burke)  Indenture),  a sum which will equal the  interest  on the Series
2002A (Burke)  Bonds which will become due on such Interest  Payment Date on the
Series 2002A (Burke) Bonds; and

         (b) on or before  January 1, 2018, a sum which will equal the principal
amount of the Series  2002A  (Burke)  Bonds  which will become due on January 1,
2018; and

         (c) on or before  any  redemption  date for the  Series  2002A  (Burke)
Bonds, a sum equal to the principal of, redemption premium (if any) and interest
on, the Series 2002A (Burke) Bonds which are to be redeemed on such date.

     This Series 2002A (Burke) Note evidences the Loan (as defined in the Series
2002A (Burke) Loan Agreement  hereinafter referred to) by the Burke Authority to
Oglethorpe  and the  obligation  of  Oglethorpe  to repay  the same and shall be
governed by and shall be payable in accordance  with the terms,  conditions  and
provisions of the Loan Agreement, dated as of October 1, 2002 (the "Series 2002A
(Burke) Loan Agreement"),  between the Burke Authority and Oglethorpe,  pursuant
to which the Burke  Authority has agreed to loan to Oglethorpe the proceeds from
the sale of the Series 2002A (Burke) Bonds.


                                      B-1


     This  Series  2002A  (Burke)  Note  is  a  duly  authorized  obligation  of
Oglethorpe issued under and equally and ratably secured by the Indenture,  dated
as of March 1, 1997 (the "Original Indenture"),  as heretofore  supplemented and
as supplemented by the Seventeenth  Supplemental Indenture,  dated as of October
1,  2002  (the  "Seventeenth  Supplemental   Indenture"),   and  the  Eighteenth
Supplemental   Indenture,   dated  as  of  October  1,  2002  (the   "Eighteenth
Supplemental  Indenture"),  between Oglethorpe,  as grantor,  and SunTrust Bank,
formerly known as SunTrust  Bank,  Atlanta,  as trustee (in such  capacity,  the
"Indenture Trustee") (the Original Indenture, as supplemented, the "Indenture").
Reference is hereby made to the Indenture for a statement of the  description of
the properties thereby mortgaged, pledged and assigned, the nature and extent of
the  security  and the  respective  rights,  limitations  of rights,  duties and
immunities  thereunder of  Oglethorpe,  the Indenture  Trustee and the holder of
this Series  2002A  (Burke)  Note and of the terms upon which this Series  2002A
(Burke) Note is authenticated  and delivered.  This Series 2002A (Burke) Note is
created by the Seventeenth  Supplemental Indenture and designated as the "Series
2002A (Burke) Note."

     All payments  hereon are to be made to the Series 2002A (Burke)  Trustee at
its principal office in Atlanta,  Georgia,  in lawful money of the United States
of America which will be immediately available on the day payment is due. As set
forth in Section 4.6 of the Series 2002A (Burke) Loan Agreement,  the obligation
of  Oglethorpe  to make the payments  required  hereunder  shall be absolute and
unconditional.

     Oglethorpe shall be entitled to certain credits against  payments  required
to be made hereunder as provided in Section 4.3 of the Series 2002A (Burke) Loan
Agreement.

     This Series 2002A (Burke) Note may be prepaid upon the terms and conditions
set forth in Article VIII of the Series 2002A (Burke) Loan Agreement.

     If the Series 2002A (Burke) Trustee shall accelerate  payment of the Series
2002A  (Burke)  Bonds,  all payments on this Series 2002A  (Burke) Note shall be
declared  due and  payable in the manner  and with the  effect  provided  in the
Series 2002A (Burke) Loan  Agreement.  The Series 2002A  (Burke) Loan  Agreement
provides that, under certain conditions,  such declaration shall be rescinded by
the Series 2002A (Burke) Trustee.

     No recourse shall be had for the payments  required hereby or for any claim
based herein or in the Series 2002A  (Burke) Loan  Agreement or in the Indenture
against any officer,  director or member, past, present or future, of Oglethorpe
as such,  either  directly or through  Oglethorpe,  or under any  constitutional
provision,  statute or rule of law or by the enforcement of any assessment or by
any legal or equitable proceedings or otherwise.

     This Series 2002A  (Burke) Note shall not be entitled to any benefit  under
the Indenture and shall not become valid or  obligatory  for any purposes  until
the Indenture Trustee shall have signed the form of  authentication  certificate
endorsed hereon.

     This  Series  2002A  (Burke)  Note shall be governed  by and  construed  in
accordance with the laws of the State of Georgia.

                                      B-2



     IN WITNESS WHEREOF, Oglethorpe has caused this Series 2002A (Burke) Note to
be executed in its corporate name by its President and Chief  Executive  Officer
and attested by its Secretary and its corporate seal to be hereunto affixed.

                                    OGLETHORPE POWER CORPORATION
                                    (AN ELECTRIC MEMBERSHIP CORPORATION)



                                    By:________________________________________
                                          Thomas A. Smith
                                          President and Chief Executive Officer
(SEAL)


Attest:


- -------------------------------
Patricia N. Nash
Secretary
















                                      B-3




                     TRUSTEE'S CERTIFICATE OF AUTHENTICATION


     This is one of the Obligations of the series designated therein referred to
in the within mentioned Indenture.

                                           SUNTRUST BANK, as Trustee



                                           By:__________________________________
                                              Authorized Signatory