CROSS REFERENCE: LEASE AGREEMENT NO. 2 
                                        RECORDED IN VOLUME 205, PAGE 328, MONROE
                                        COUNTY, GEORGIA, RECORDS, AND FIRST 
                                        SUPPLEMENT TO LEASE AGREEMENT NO. 2 
                                        RECORDED IN VOLUME 228, PAGE 111 OF THE 
                                        AFORESAID RECORDS.

                   SECOND SUPPLEMENT TO LEASE AGREEMENT NO. 2

      This SECOND SUPPLEMENT TO LEASE AGREEMENT NO. 2 (this "Supplement") is
made and entered into as of December 17, 1997, between NATIONSBANK, N.A., a
national banking association and successor by merger to The Citizens and
Southern National Bank, acting through its agent, THE BANK OF NEW YORK, a state
banking corporation organized under the laws of the state of New York, not in
its individual capacity but solely as an Owner Trustee (together with its
successors and permitted assigns, the "Lessor") under the Trust Agreement No. 2,
dated December 30, 1985, among the Owner Participant and the Original Trustee
(each such term and all other capitalized terms used in this Supplement but not
defined have the meanings assigned to such terms in Section 1 of this
Supplement), and OGLETHORPE POWER CORPORATION (AN ELECTRIC MEMBERSHIP
CORPORATION), an electric membership corporation organized under the laws of the
state of Georgia and formerly known as Oglethorpe Power Corporation (An Electric
Membership Generation & Transmission Corporation) and together with its
successors and permitted assigns, the "Lessee."

                              W I T N E S S E T H :

      WHEREAS, on December 30, 1985, the Original Trustee and the Co-Owner
Trustee leased the Undivided Interest to the Lessee pursuant to the terms of the
Lease;

      WHEREAS, the Original Trustee and the Co-Owner Trustee assigned all of
their right, title and interest in and to the Undivided Interest and the Lease
to the Georgia Trustee, and the Georgia Trustee assumed the obligations of the
Original Trustee and the Co-Owner Trustee thereunder on October 7, 1986 with the
consent of the Lessee and the Indenture Trustee, all pursuant to and in
accordance with Trust Supplement No. 2;

      WHEREAS, in connection with such assignment and assumption, the Lease was
amended pursuant to the First Lease Supplement;

      WHEREAS, the Georgia Trustee is an Owner Trustee pursuant to the Trust
Supplement No. 2 and the Lessor is the successor to Georgia Trustee;

      WHEREAS, the Lessee, the Owner Participant, the Original Trustee, the
Lessor, the Indenture Trustee, the Loan Participant, the Original Funding
Corporation, the Funding Corporation, the Original Collateral Trust Trustee and
the Collateral Trust Trustee have entered into the Second Supplemental
Participation Agreement in connection with the issuance by the Lessor of the
Series 1997 Refunding Lessor Note to the Funding Corporation to refinance all of
the principal outstanding under the Outstanding Note;

      WHEREAS, the Series 1997 Refunding Lessor Note will be secured under the
Restated Indenture;



      WHEREAS, the Funding Corporation will issue the Facility Bonds to refund
the Outstanding Bonds, and the Series 1997 Refunding Lessor Note issued to such
corporation will secure the payment of the Facility Bonds under the terms of the
Collateral Trust Indenture; and

      WHEREAS, the Lessor and the Lessee desire to amend the Lease in the manner
provided in this Second Lease Supplement in connection with (i) the issuance of
the Series 1997 Refunding Lessor Note to the Funding Corporation, and (ii) the
repayment of the Outstanding Note with the proceeds thereof;

      NOW, THEREFORE, in consideration of the premises, the mutual agreements
contained herein, and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto agree as
follows:

      SECTION 1. Definitions. Capitalized terms used in this Second Lease
Supplement, including the recitals, and not otherwise defined shall have the
meanings assigned to such terms in Appendix A to the Lease Agreement and
Appendix B to the First Lease Supplement unless the context or use clearly
indicates another or different meaning or intent, except for certain
modifications, amendments and additions to such definitions as set forth in
Appendix C to this Second Lease Supplement. Capitalized terms set forth in
Appendix C to this Second Lease Supplement shall have the respective meanings
assigned to such terms for all purposes hereof and under the Lease, as amended
hereby, and words importing the singular include the plural and vice versa.

      SECTION 2. Supplemental Rent Payment. On the 1997 Refinancing Date, the
Lessee shall pay to the Lessor Supplemental Rent in the amount of Four Million
Six Hundred Five Thousand Eight Hundred Ten Dollars and Fifteen Cents
($4,605,810.15) in immediately available funds (the "1997 Supplemental Rent
Payment").

      SECTION 3. Basic Rent. For purposes of determining the amount of Basic
Rent to be paid by Lessee to Lessor pursuant to Section 3.2 of the Lease, the
term "Schedule 1 to the Participation Agreement" shall mean the revised Schedule
1 to the Participation Agreement attached to the Second Supplemental
Participation Agreement.

      SECTION 4. Amendment to Section 3.3. Section 3.3 of the Lease is hereby
amended by deleting such section in its entirety and substituting the following
in lieu thereof:

            SECTION 3.3 Rent Differential. If, on any Rent Payment Date, any
      amount of Additional Lessor Note Interest shall be due and payable under
      the Series 1997 Refunding Lessor Note, the installment of Basic Rent on
      such Rent Payment Date shall be increased by the amount of such Additional
      Lessor Note Interest. The amount of additional Basic Rent payable under
      this Section 3.3 shall be the "Rent Differential."

      SECTION 5. Amendment to Section 10.2(b)(xii). Subsection 10.2(b)(xii)
of the Lease is hereby amended by deleting such subsection in its entirety and
substituting the following in lieu thereof:


                                       2


            (xii) Coopers & Lybrand LLP or any other nationally recognized
      accounting firm which shall become Lessee's regular outside auditors shall
      confirm, to the reasonable satisfaction of Lessor, that the Cost of
      Capital Improvements which are the subject of the Supplemental Financing,
      when so financed, may be capitalized, rather than expensed, under the
      Uniform System of Accounts and may be capitalized under section 263 of the
      Code and the Regulations thereunder;

      SECTION 6. Amendment to Article 14. Subsection (e) of Article 14 of the
Lease is hereby amended by deleting such subsection in its entirety and
substituting the following in lieu thereof:

            (e) any "Event of Default" under Article VIII of the Oglethorpe
      Indenture shall have occurred and be continuing and, as a result thereof,
      any remedy permitted under such Article VIII shall have been exercised;

      SECTION 7. Amendment to Section 18.1. Section 18.1 of the Lease is
hereby amended by deleting the words "REA" and "REA Mortgage" in such section
and substituting in lieu thereof the words "RUS" and "Oglethorpe Indenture,"
respectively.

      SECTION 8. Effect. Except as expressly amended, supplemented and
modified hereby, the Lease and all terms and conditions thereof shall continue
in full force and effect, unmodified and unchanged. From and after the date of
delivery hereof, the Lease and all references thereto in any and all Operative
Documents shall mean and include the Lease as modified, amended and supplemented
hereby.

      SECTION 9. Chattel Paper. The single executed original of this
Supplement marked "Original " and containing the receipt of Indenture Trustee
thereon shall be deemed to be the "Original " of this Supplement. To the extent
that this Supplement constitutes chattel paper, as such term is defined in the
Uniform Commercial Code as in effect in any applicable jurisdictions, no
security interest in this Supplement may be created through the transfer or
possession of any counterpart other than the "Original."


                                       3


      IN WITNESS WHEREOF, the parties hereto have each caused this Supplement to
be duly executed and sealed as of the date first above written.


LESSOR:                                NATIONSBANK, N.A., acting through its 
Signed, sealed and delivered           agent, THE BANK OF NEW YORK, not 
this 17 day of December,               in its individual capacity but solely a 
1997, in the presence of:              Owner Trustee under the Trust Agreement 
                                       identified herein, Lessor 



/s/ Mark Bron                          By: /s/ Stefan Victory
- --------------------------------           -------------------------------------
Unofficial Witness                         Name: Stefan Victory
                                           Title: Agent


/s/ Cherie S. White                    Attest: /s/ Peggy McWhorter
- --------------------------------               ---------------------------------
Notary Public                                  Name: Peggy McWhorter
                                               Title: Agent

My Commission Expires: April 9, 2001                    [SEAL]




LESSEE:                                 OGLETHORPE POWER 
Signed, sealed and delivered            CORPORATION (AN ELECTRIC 
this 17 day of December,                MEMBERSHIP CORPORATION),
1997, in the presence of:               Lessee



/s/ Lynda L. Clark                     By: /s/ T.D. Kilgore
- --------------------------------           -------------------------------------
Unofficial Witness                         Name: T.D. Kilgore
                                           Title: President and Chief 
                                                  Executive Officer



/s/ Thomas J. Brendiar                 Attest: /s/ Patricia N. Nash
- --------------------------------               ---------------------------------
Notary Public                                  Name: Patricia N. Nash
                                               Title: Secretary

My Commission Expires: November 14, 2000               [SEAL]





                                 APPENDIX C
                                           
                             DEFINITIONS NO. 2

"Additional Lessor Note Interest" shall have the meaning set forth in the 
Series 1997 Refunding Lessor Note.

"Amendment No. 1 to the Tax Indemnification Agreement" means the Amendment 
No. 1 to the Tax Indemnification Agreement No. 2, dated as of December 17, 
1997, between the Lessee and the Owner Participant.

"Bankruptcy Act" has the meaning set forth in Section 4.1(d) of the Restated 
Indenture.

"Collateral Trust Trustee" means SunTrust Bank, Atlanta, not in its 
individual capacity but solely as trustee under the Collateral Trust 
Indenture.

"Collateral Trust Indenture" means the Collateral Trust Indenture, dated as 
of December 1, 1997, among Lessee, the Funding Corporation and the Collateral 
Trust Trustee, as the same may be amended, modified or supplemented from time 
to time in accordance with the provisions thereof and of the Participation 
Agreement.

"Exchange and Registration Rights Agreement" means the Exchange and 
Registration Rights Agreement, dated as of December 17, 1997, among 
Oglethorpe, the Funding Corporation and the Purchasers, as the same may be 
amended, modified or supplemented from time to time in accordance with the 
provisions thereof.

"Existing Participation Agreement" means the Original Participation Agreement 
as amended, modified and supplemented by the First Supplemental Participation 
Agreement.

"Facility Bonds" means the Serial Facility Bonds due June 30, 2011 issued by 
the Funding Corporation pursuant to the Collateral Trust Indenture, comprised 
of the Initial Series of Bonds and the Exchange Series of Bonds (both as 
defined in the Collateral Trust Indenture).

"First Lease Supplement" means the First Supplement to Lease Agreement No. 2, 
dated as of October 15, 1986, between the Lessor and the Lessee.

"First Supplemental Participation Agreement" means the Supplemental 
Participation Agreement No. 2, dated as of October 9, 1986, among Lessee, 
Owner Participant, the Original Trustee, the Georgia Trustee, the Indenture 
Trustee, the Original Funding Corporation, the Original Collateral Trust 
Trustee and the Loan Participant.

"Ford Assignment and Assumption Agreement" means the Assignment and 
Assumption Agreement, dated as of September 21, 1996, by and among Ford Motor 
Credit Company, DFO Holding Company and DFO Partnership.

"Funding Corporation" means OPC Scherer 1997 Funding Corporation A, a 
corporation organized under the laws of the state of Delaware.



"Indemnitee" shall mean Bank, Original Trustee, Wade, Co-Owner Trustee, 
Georgia Bank, Georgia Trustee, Owner Participant, Indenture Trustee (both in 
its individual capacity and its capacity as Indenture Trustee under the 
Restated Indenture), the Collateral Trust Trustee, the Original Collateral 
Trust Trustee, each holder of a note from time to time outstanding and the 
respective successors, assigns, agents, officers, directors or employees of 
any thereof and Affiliates of any of the foregoing."

"Indenture Trustee" means The Bank of New York Trust Company of Florida, 
N.A., a national banking association, not in its individual capacity but 
solely as indenture trustee under the Indenture, and each successor trustee 
or co-trustee of the trusts created by the Indenture.

"Lease" means the Lease Agreement No. 2, dated as of December 30, 1985, 
between the Lessor and the Lessee, as amended, modified and supplemented by 
the First Lease Supplement and the Second Lease Supplement and as further 
amended, modified and supplemented from time to time.

"1997 Refinancing Date" has the meaning assigned to such term in Section 2.03 
of the Second Supplemental Participation Agreement.

"1997 Refinancing Documents" means the Second Supplemental Participation 
Agreement, the Restated Indenture, the Series 1997 Refunding Lessor Note and 
the Second Lease Supplement.

"1997 Refinancing Transaction Expenses" means the sum of (a) the aggregate of 
the amounts referred to in clause (b) of the definition of "1997 Refinancing 
Transaction Expenses" contained in Appendix C to each of the Other Second 
Supplemental Participation Agreements, plus (b) all other fees, expenses, 
disbursements and costs incurred by or on behalf of Owner Trustee, Owner 
Participant, the Original Funding Corporation, the Funding Corporation, the 
Indenture Trustee, the Original Collateral Trust Trustee or the Collateral 
Trust Trustee in connection with the transactions contemplated by the 1997 
Refinancing Documents on the 1997 Refinancing Date, including the Lessor's 
Share of up to $110,000 of the fees and disbursements of counsel to the 
Purchasers.

"1997 Supplemental Rent Payment" shall have the meaning set forth in Section 
2 of the Second Lease Supplement.

"Offering Circular" means the Offering Circular, dated December 11, 1997, of 
the Lessee relating to the Facility Bonds.

"Oglethorpe Indenture" means the Indenture, dated as of March 1, 1997, 
between Lessee and SunTrust Bank, Atlanta, as indenture trustee, which 
replaced the REA Mortgage, as the same may be hereafter supplemented, 
modified or amended, and any new deed to secure debt, indenture or security 
agreement placed on the property of the Lessee in substitution thereof.  Any 
reference to a section or provision of the REA Mortgage shall refer to the 
successor section or provision in the Oglethorpe Indenture or any 
supplemented, amended or successor deed to secure debt, indenture or security 
agreement notwithstanding any change in the numbering or headings of such 
sections or provisions.

                                     2



"Operative Documents" means the Participation Agreement, the Trust Agreement, 
the Lease, the Deed and Bill of Sale, the Supporting Assets Lease, the 
Supporting Assets Sublease, the Restated Indenture, the Series 1997 Refunding 
Lessor Note, the Assignment, the REA Consent, the Co-Owners' Consent, the Tax 
Indemnification Agreement, the Ownership Agreement, the Operating Agreement 
and the Ford Assignment and Assumption Agreement.

"Original Collateral Trust Indenture" means the Collateral Trust Indenture, 
dated as of October 15, 1986, among Lessee, Original Funding Corporation and 
the Original Collateral Trust Trustee.

"Original Collateral Trust Trustee" means SunTrust Bank, Atlanta, formerly 
known as the Trust Company Bank, not in its individual capacity but solely as 
trustee under the Original Collateral Trust Indenture.

"Original Funding Corporation" means OPC Scherer Funding Corporation, a 
Delaware corporation.

"Original Indenture Trustee" means Wachovia Bank of Georgia, National 
Association, a national banking association, acting through its agent The 
Bank of New York, a state banking corporation organized under the laws of the 
State of New York, not in its individual capacity but solely as indenture 
trustee under the Original Lease Indenture.

"Original Lease Indenture" means the Original Indenture, as supplemented by 
the First Supplemental Indenture.

"Original Participation Agreement" means the Participation Agreement No. 2, 
dated as of December 30, 1985, among Lessee, Owner Participant, Original 
Trustee, and the Loan Participant.

"Other Leases" means all the leases of undivided interests in the Facility 
(other than the Lease) between the Bank, in its capacity as trustee, and 
Lessee, dated as of December 30, 1985, as the same have been or may be 
amended, modified or supplemented thereafter. 

"Other Second Supplemental Participation Agreements" means all supplemental 
participation agreements, each dated as of the 1997 Refinancing Date, to 
which Lessee and any of the Other Owner Participants are parties, relating to 
the Refinancing contemplated to be consummated on the 1997 Refinancing Date 
other than the Second Supplemental Participation Agreement.

"Outstanding Bonds" mean the Serial Facility Bonds due 1991, 1996 and 2011 
issued by the Original Funding Corporation pursuant to, and Outstanding 
under, the Indenture.

"Outstanding Bonds Redemption Date" means January 6, 1998.

"Outstanding Note" means the Note, dated October 15, 1986, issued to the 
Original Funding Corporation pursuant to Section 2.4 of the Indenture.

"Participation Agreement" means the Original Participation Agreement as amended,
modified and supplemented by the First Supplemental Participation Agreement and
the Second 

                                     3



Supplemental Participation Agreement, and as the same may be further amended, 
modified or supplemented from time to time in accordance with the provisions 
thereof.

"Premium Redemption Price" shall mean the redemption prices (each expressed 
as a percentage principal amount) set forth in Schedule 2 to the Series 1997 
Refunding Lessor Note.

"Purchase Agreement" means the Purchase Agreement, dated December 11, 1997, 
among the Purchasers, Lessee and the Funding Corporation.

"Purchasers" shall mean Goldman, Sachs & Co. and the other Purchasers listed 
on Schedule I to the Purchase Agreement.

"Restated Indenture" means the Amended and Restated Indenture of Trust, Deed 
to Secure Debt and Security Agreement No. 2, dated as of December 1, 1997, 
among the Owner Trustee and the Indenture Trustee.

"RUS" means the Rural Utilities Service, the successor to the REA.

"Second Lease Supplement" means the Second Supplement to Lease Agreement No. 
2, dated as of the 1997 Refinancing Date, between the Lessee and the Owner 
Trustee.

"Second Supplemental Participation Agreement" means the Supplemental 
Participation Agreement No. 2, dated as of the 1997 Refinancing Date, among 
Lessee, Owner Participant, the Owner Trustee, the Indenture Trustee, the Loan 
Participant, the Original Funding Corporation, the Funding Corporation, the 
Original Collateral Trust Trustee and the Collateral Trust Trustee.

"Series 1997 Refunding Lessor Note" means the Note created and established 
pursuant to Section 2.4 of the Restated Indenture and issued to the Funding 
Corporation pursuant to the Participation Agreement and any Note issued in 
exchange or substitution thereof.

"Stipulated Interest Rate" shall mean the lesser of (i) two percent (2%) per 
annum above the greater of (A) the published base rate of Citibank, N.A., in 
New York, New York, in effect from time to time and (B) six and nine hundred 
seventy-four thousandths percent (6.974%) per annum, and (ii) the highest 
interest rate per annum permitted by Applicable Law.

                                         4



                           EXPLANATORY STATEMENT TO
                 SECOND SUPPLEMENT TO LEASE AGREEMENT NO. 2

    Except as described below, the following agreements are substantially 
similar in all material respects to Second Supplement to Lease Agreement No. 
2, dated as of December 17, 1997, between NationsBank, N.A., acting through 
its agent, The Bank of New York, as Owner Trustee under the Trust Agreement 
No. 2, dated December 30, 1985, among DFO Partnership, as assignee of Ford 
Motor Credit Company, as the Owner Participant, and the Original Trustee, as 
Lessor, and Oglethorpe Power Corporation (An Electric Membership 
Corporation), as Lessee ("Lease Agreement No. 2"):

1.  Second Supplement to Lease Agreement No. 1, dated as of December 17, 
    1997, between NationsBank, N.A., acting through its agent, The Bank of 
    New York as Owner Trustee under the Trust Agreement No. 1, dated December 
    30, 1985, among IBM Credit Financing Corporation as the Owner 
    Participant, and the Original Trustee, as Lessor, and Oglethorpe Power 
    Corporation (An Electric Membership Corporation), as Lessee ("Lease 
    Agreement No. 1");

2.  Second Supplement to Lease Agreement No. 3, dated as of December 17, 
    1997, between NationsBank, N.A., acting through its agent, The Bank of 
    New York, as Owner Trustee under the Trust Agreement No. 3, dated 
    December 30, 1985, among Chrysler Financial Corporation as the Owner 
    Participant, and the Original Trustee, as Lessor, and Oglethorpe Power 
    Corporation (An Electric Membership Corporation), as Lessee ("Lease 
    Agreement No. 3"); and

3.  Second Supplement to Lease Agreement No. 4, dated as of December 17, 
    1997, between NationsBank, N.A., acting through its agent, The Bank of 
    New York, as Owner Trustee under the Trust Agreement No. 4, dated 
    December 30, 1985, among HEI Investment Corp. as the Owner Participant, 
    and the Original Trustee, as Lessor, and Oglethorpe Power Corporation (An 
    Electric Membership Corporation), as Lessee ("Lease Agreement No. 4").

    The following sets forth the material differences between Lease Agreement 
No. 2 and Lease Agreement No. 1, Lease Agreement No. 3 and Lease Agreement 
No. 4:

1.  The amount of the Supplemental Rent Payment set forth in Section 2 of 
    Lease Agreement No. 1, Lease Agreement No. 3 and Lease Agreement No. 4 is 
    $3,490,049.95, $4,633,243.03 and $6,111,638.60, respectively.