As filed with the Securities and Exchange Commission on July 15, 2015.October 28, 2022.
Subject to Amendment.
Registration No. 333-               


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549


FORM S-3
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

Southern Power Company

(Exact name of registrant as

specified in its charter)
Delaware

(State or other jurisdiction of

incorporation or organization)
58-2598670

(I.R.S. Employer Identification No.)
30 Ivan Allen Jr. Blvd., N.W.
Atlanta, Georgia 30308
(404) 506-5000
(Address, including zip code, and telephone number, including area code, of the registrant’s principal executive offices)

ELLIOTT L. SPENCER
ComptrollerGARY KERR
Senior Vice President, Chief Financial Officer and Corporate SecretaryTreasurer
Southern Power CompanySOUTHERN POWER COMPANY
30 Ivan Allen Jr. Blvd., N.W.
Atlanta, Georgia 30308
(404) 506-5000
(Name, address, including zip code, and telephone number, including area code, of agent for service)


The Commission is requested to mail signed copies of all orders, notices and communications to:
ART P. BEATTIE
DANIEL S. TUCKER
Executive Vice President and
Chief
Financial Officer and Treasurer

THE SOUTHERN COMPANY

30 Ivan Allen Jr. Blvd., N.W.

Atlanta, Georgia 30308
MELISSA K. CAEN

Vice President Deputy
General Counsel and CorporateAssistant Secretary

SOUTHERN COMPANY SERVICES, INC.

30 Ivan Allen Jr. Blvd., N.W.

Atlanta, Georgia 30308
ERIC A. KOONTZ

TROUTMAN PEPPER HAMILTON SANDERS LLP

600 Peachtree Street, N.E.

Suite 5200
3000
Atlanta, Georgia 30308-2216


Approximate date of commencement of proposed sale to the public: From time to time after the effective date of this registration statement.
If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box.  ¨o
If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box:  xý
If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ¨o
If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ¨o
If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box.  ¨o
If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box.  ¨o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”filer,” “smaller reporting company,” and “smaller reporting“emerging growth company” in Rule 12b-2 of the Exchange Act (check one):Act.
Large accelerated filer
¨o 
Accelerated filer
¨o
Non-accelerated filer
x(Do not check if a smaller reporting company) 
Smaller reporting company
¨o

CALCULATION OF REGISTRATION FEE
Title of Each Class of
Securities to be Registered
 
Amount to be
Registered(1)
 
Proposed Maximum
Offering Price
Per Unit(1)(2)(3)
 
Proposed Maximum
Aggregate Offering
Price(1)(2)(3)
 
Amount of
Registration
Fee(1)
Southern Power Company Preference Stock          
Southern Power Company Senior Notes          
Total   $3,000,000,000 100% $3,000,000,000 $348,600(4)
(1)There are being registered hereunder such presently indeterminate number of shares of Preference Stock and such presently indeterminate principal amount of Senior Notes of Southern Power Company with an aggregate initial offering price not to exceed $3,000,000,000. Pursuant to Rule 457(o) under the Securities Act of 1933, which permits the registration fee to be calculated on the basis of the maximum offering price of all the securities listed, the table does not specify by each class information as to the amount to be registered, proposed maximum offering price per unit or proposed maximum aggregate offering price.
Emerging growth company o
(2)Estimated solely for the purpose of determining the registration fee.
(3)Exclusive of accrued interest and distributions, if any.
(4)Pursuant to Rule 457(p) under the Securities Act of 1933, as amended, $75,020 of previously paid filing fees have not been used with respect to $550,000,000 of the $1,500,000,000 aggregate initial offering price of securities that were previously registered by Southern Power Company pursuant to Registration Statement No. 333-184850, declared effective on November 21, 2012, and were not sold thereunder. Such fees are being used to offset a portion of the registration fee.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act.  o

The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until this registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.




Information contained in this Prospectus is not complete and may be changed. The registrant may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This Prospectus is not an offer to sell these securities, and the registrant is not soliciting an offer to buy these securities, in any state where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED JULY 15, 2015

OCTOBER 28, 2022
PROSPECTUS

$3,000,000,000

1,500,000,000
Southern Power Company

PreferencePreferred Stock
Senior Notes
We will provide theJunior Subordinated Notes
The specific terms of these securities will be provided in supplements to this Prospectus. You should read this Prospectus and the applicable Prospectus Supplement carefully before you invest.
See “Risk Factors” on page 1 for information on certain risks related to the purchase of securities offered by this Prospectus.
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this Prospectus is truthful or complete. Any representation to the contrary is a criminal offense.


                     , 20152022



ABOUT THIS PROSPECTUS
This Prospectus is part of a registration statement filed with the Securities and Exchange Commission (the “Commission”) using a “shelf” registration process under the Securities Act of 1933, as amended (the “1933 Act”). Under the shelf process, Southern Power Company (the “Company”) may sell, in one or more transactions,
lshares of preferencepreferred stock (the “Preference“Preferred Stock”), or
lsenior notes (the “Senior Notes”) or
ljunior subordinated notes (the “Junior Subordinated Notes”)
in a total dollar amount not to exceed $3,000,000,000.$1,500,000,000. This Prospectus provides a general description of those securities. Each time the Company sells securities, the Company will provide a prospectus supplement that will contain specific information about the terms of that offering (“Prospectus Supplement”). The Prospectus Supplement may also add, update or change information contained in this Prospectus. You should read this Prospectus and the applicable Prospectus Supplement together with the additional information under the heading “Available Information.”
RISK FACTORS
Investing in the Company’s securities involves risk. Please see the risk factors described in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014, along with the disclosure related to risk factors contained in the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2015,2021 (the “Form 10-K”), which areis incorporated by reference in this Prospectus. Before making an investment decision, you should carefully consider these risks as well as other information contained or incorporated by reference in this Prospectus. The risks and uncertainties described are not the only ones facing the Company. Additional risks and uncertainties not presently known to the Company or that the Company currently deems immaterial may also impair its business operations, its financial results and the value of its securities.
AVAILABLE INFORMATION
The Company has filed with the Commission a registration statement on Form S-3 (the “Registration Statement,” which term encompasses any amendments to the Registration Statement and exhibits to the Registration Statement) under the 1933 Act. As permitted by the rules and regulations of the Commission, this Prospectus does not contain all of the information set forth in the Registration Statement and the exhibits and schedules to the Registration Statement, to which reference is made.
The Company is subject to the informational requirements of the Securities Exchange Act of 1934, as amended (the “1934 Act”), and in accordance with the 1934 Act files reports and other information with the Commission. Such reports and other information can be inspected and copied at the Public Reference Room of the Commission at 100 F Street, N.E., Room 1580, Washington, D.C. 20549. Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-800-SEC-0330. The Commission maintains a website that contains reports, proxy and information statements and other information regarding registrantsissuers including the Company that file electronically at http://www.sec.gov.
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
The following documents have been filed with the Commission pursuant to the 1934 Act and are incorporated by reference in this Prospectus and made a part of this Prospectus:
(a) the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2014;; and
(b) the Company’s Quarterly ReportReports on Form 10-Q for the quarterquarters endedMarch 31, 2015;2022, June 30, 2022 and
(c) the Company’s Current Report on Form 8-K dated May 14, 2015.September 30, 2022.
All documents filed by the Company with the Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the 1934 Act subsequent to the date of the initial filing of the Registration Statement and prior to the effectiveness of the Registration Statement and subsequent to the date of this Prospectus and prior to the termination of this offering shall be deemed to be incorporated by reference in this Prospectus and made a part of this Prospectus from the date of filing of such documents; provided, however, that the Company is not incorporating any information furnished under ItemsItem 2.02 or 7.01 of any Current Report on Form 8-K unless specifically stated otherwise. Any statement contained in a document incorporated or deemed to be incorporated by reference in this Prospectus shall be deemed to be modified or superseded for purposes of this Prospectus to the extent that a statement contained in this Prospectus or in any other subsequently filed document which also is or is deemed to be incorporated by reference in this Prospectus modifies or supersedes such statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Prospectus.

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The Company will provide without charge to each person, including any beneficial owner, to whom this Prospectus is delivered, on the written or oral request of any such person, a copy of any or all documents incorporated by reference in this Prospectus (other than the exhibits to such documents unless such exhibits are specifically incorporated by reference in this Prospectus). Such requests should be directed to Melissa K. Caen, Assistant Secretary, 30 Ivan Allen Jr. Boulevard, N.W., Atlanta, Georgia 30308, telephone: (404) 506-5000. Certain of these documents are also available on The Southern Company’s website at www.southerncompany.com. The Company is not incorporating the contents of such website into this Prospectus or any Prospectus Supplement.
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SOUTHERN POWER COMPANY
The Company is a corporation organized under the laws of the State of Delaware on January 8, 2001 and is admitted to do business in the States of Alabama, Florida, Georgia, Mississippi, North Carolina, South Carolina and Texas. Certain of the Company's subsidiaries are also admitted to do business in the additional States of California, Nevada and New Mexico.2001. The principal executive offices of the Company are located at 30 Ivan Allen Jr. Boulevard, N.W., Atlanta, Georgia 30308, and the telephone number is (404) 506-5000. The Company’s internet address is http://www.southernpowercompany.com. The information on the Company’s website is not incorporated by reference in this Prospectus and should not be considered to be a part of this Prospectus.
The Company is a wholly-owned subsidiary of The Southern Company (“Southern”) and an operating public utility. The Company and its subsidiaries develop, construct, acquire, own and manage power generation assets, including renewable energy projects, and sell electricity at market-based rates in the wholesale market. The electricity from the natural gas and biomass generating facilities owned by the Company and its subsidiaries is primarily sold under long-term, fixed price capacity contracts both with unaffiliated wholesale purchasers as well as with Southern’s traditional electric operating companies. The Company’s and its subsidiaries’ electricity sales from solar and wind salesgenerating facilities are also primarily through long-term agreementscontracts; however, these contracts do not have a capacity charge and customers either purchase the energy output of a dedicated renewable facility through an energy charge or provide the Company or its subsidiaries a certain fixed price for the entire output ofelectricity sold to the respective facility.grid. The Company’s and its subsidiaries’ business activities are not subject to the traditional state regulation like Southern’s traditional electric operating companies but the majority of utilities buttheir business activities are subject to regulation by the Federal Energy Regulatory Commission.
RATIO OF EARNINGS TO FIXED CHARGES
The following table sets forth the Ratio of Earnings to Fixed Charges for the periods indicated.
 Year Ended December 31, 
Three
Months
Ended
March 31,
2015(1)
 2010 2011 2012 2013 2014 
Ratio of Earnings to Fixed Charges(2)3.23 3.34 4.09 3.47 2.97 3.06
(1)Due to seasonal variations in the demand for energy, operating results for the three months ended March 31, 2015 do not necessarily indicate operating results for the entire year.
(2)This ratio is computed as follows: (i) “Earnings” have been calculated by adding to “Earnings Before Income Taxes” “Interest expense, net of amounts capitalized” and the interest component of rental expense, the amortization of capitalized interest, and the pre-tax net loss from non-controlling interest and (ii) “Fixed Charges” consist of interest expense, capitalized interest and the interest component of rental expense and the amortization of capitalized interest.
The Company currently has no preference equity securities outstanding and accordingly has no obligation to pay preference dividends. If the Company issues Preference Stock, the appropriate Ratio of Earnings to Fixed Charges Plus Preference Dividend Requirements will be included in each applicable Prospectus Supplement.
USE OF PROCEEDS
Except as may be otherwise described in an applicable Prospectus Supplement, the net proceeds received by the Company from the sale of the PreferencePreferred Stock, the Senior Notes or the SeniorJunior Subordinated Notes will be used in connection with its growth strategy and continuous construction program, to pay scheduled maturities and/or refundings of its securities, to repay short-term indebtedness to the extent outstanding and for other general corporate purposes.
DESCRIPTION OF THE PREFERENCEPREFERRED STOCK
PreferencePreferred Stock is a proposed class of capital stock of the Company that will rank senior to the Company’s common stock. An amendment to the Company’s Certificate of Incorporation establishing the PreferencePreferred Stock is required to be submitted for adoption by the stockholders of the Company, and, if adopted, the Company will be authorized to issue PreferencePreferred Stock. The Board of Directors of the Company will determine the specific terms, rights, preferences, limitations and restrictions of each series of PreferencePreferred Stock and such provisions will be included in a subsequent amendment to the Company’s Certificate of Incorporation for each series. The Prospectus Supplement for a series of PreferencePreferred Stock will describe the terms, rights,

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preferences, limitations and restrictions of the PreferencePreferred Stock offered by that Prospectus Supplement. A copy of such amendments to the Company’s Certificate of Incorporation will be filed as exhibits to the Registration Statement of which this Prospectus forms a part.
The terms, rights, preferences, limitations and restrictions of the PreferencePreferred Stock to be determined and set forth in the applicable Prospectus Supplement include, but are not limited to, the following: (i) the total number of shares of PreferencePreferred Stock authorized to be issued; (ii) the designation of the series; (iii) the total number of shares of a series being offered; (iv) the general or special voting rights of such shares, if any; (v) the price or prices at which shares will be offered and sold; (vi) the dividend rate, period and payment date or method of calculation applicable to the PreferencePreferred Stock; (vii) the date from which dividends on the PreferencePreferred Stock accumulate, if applicable; (viii) the mandatory or optional sinking fund, purchase fund or similar provisions, if any; (ix) the dates, prices and other terms of any optional or mandatory redemption; (x) any listing of the shares on a securities exchange; and (xi) any other specific terms, preferences, rights, limitations or restrictions.
DESCRIPTION OF THE SENIOR NOTES
Set forth below is a description of the general terms of the Senior Notes. The following description does not purport to be complete and is subject to, and is qualified in its entirety by reference to, the Senior Note Indenture, dated as of June 1, 2002, between the Company and The Bank of New York Mellon (formerly knownComputershare Trust Company, N.A., as The Bank of New York), assuccessor trustee (the “Senior Note Indenture Trustee”), as heretofore supplemented and amended and as to be supplemented by a supplemental indenture to the Senior Note Indenture establishing the Senior Notes of each series (the Senior Note Indenture, as so supplemented and amended, is referred to as the “Senior Note Indenture”), the forms of which are filed as exhibits to the Registration Statement of which this Prospectus forms a part.. The terms of the Senior Notes will include those stated in the Senior Note Indenture and those made a part of the Senior Note Indenture by reference to the Trust Indenture Act of 1939, as amended (the “1939 Act”). Certain capitalized terms used in this Prospectus and not defined in this section of the Prospectus are defined in the Senior Note Indenture.
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General
The Senior Notes will be issued as unsecured senior debt securities under the Senior Note Indenture and will rank equally with all other unsecured and unsubordinated debt of the Company. The Senior Notes will be effectively subordinated to anyall existing and future secured debt of the Company. TheCompany and any potential claims of creditors of the Company’s subsidiaries. At September 30, 2022, the Company had no secured debt outstanding and no secured debt outstanding at March 31, 2015.its subsidiaries. The Senior Note Indenture does not limit the aggregate principal amount of Senior Notes that may be issued under the Senior Note Indenture and provides that Senior Notes may be issued from time to time in one or more series pursuant to an indenture supplemental to the Senior Note Indenture. The Senior Note Indenture gives the Company the ability to reopen a previous issue of Senior Notes and issue additional Senior Notes of such series, unless otherwise provided.
Reference is made to the Prospectus Supplement that will accompany this Prospectus for the following terms of the series of Senior Notes being offered by such Prospectus Supplement: (i) the title of such Senior Notes; (ii) any limit on the aggregate principal amount of such Senior Notes; (iii) the date or dates on which the principal of such Senior Notes is payable; (iv) the rate or rates at which such Senior Notes shall bear interest, if any, or any method by which such rate or rates will be determined, the date or dates from which such interest will accrue, the interest payment dates on which such interest shall be payable, and the regular record date for the interest payable on any interest payment date; (v) the place or places where the principal of, (and premium, if any, on)on and interest, if any, on such Senior Notes shall be payable; (vi) the period or periods within which, the price or prices at which and the terms and conditions on which such Senior Notes may be redeemed, in whole or in part, at the option of the Company or at the option of the holder prior to their maturity; (vii) the obligation, if any, of the Company to redeem or purchase such Senior Notes; (viii) the denominations in which such Senior Notes shall be issuable; (ix) if other than the principal amount of such Senior Notes, the portion of the principal amount of such Senior Notes which shall be payable upon declaration of acceleration of the maturity of such Senior Notes; (x) any deletions from, modifications of or additions to the Events of Default or covenants of the Company as provided in the Senior Note Indenture pertaining to such Senior Notes; (xi) whether such Senior Notes shall be issued in whole or in part in the form of a Global Security; and (xii) any other terms of such Senior Notes.
The Senior Note Indenture does not contain provisions that afford holders of Senior Notes protection in the event of a highly leveraged transaction involving the Company or its subsidiaries.
Events of Default
The Senior Note Indenture provides that any one or more of the following described events with respect to the Senior Notes of any series, which has occurred and is continuing, constitutes an “Event of Default” with respect to the Senior Notes of such series:

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(a) failure for 30 days to pay interest on the Senior Notes of such series when due on an interest payment date other than at maturity or upon earlier redemption; or
(b) failure to pay principal of, premium, if any, on or interest on the Senior Notes of such series when due at maturity or upon earlier redemption; or
(c) failure for three Business Days to deposit any sinking fund payment when due by the terms of a Senior Note of such series; or
(d) failure to observe or perform any other covenant or agreement of the Company in the Senior Note Indenture (other than a covenant or agreement which has expressly been included in the Senior Note Indenture solely for the benefit of one or more series of Senior Notes other than such series) for 30 days after written notice to the Company from the Senior Note Indenture Trustee or the holders of at least 25% in principal amount of the outstanding Senior Notes of such series; or
(e) certain events of bankruptcy, insolvency or reorganization of the Company or a Subsidiary; or
(f) any other default provided with respect to the Senior Notes of such series in the supplemental indenture authorizing the Senior Notes of such series.
The holders of not less than a majority in aggregate outstanding principal amount of the Senior Notes of any series have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Senior Note Indenture Trustee with respect to the Senior Notes of such series. If ana Senior Note Indenture Event of Default occurs and is continuing with respect to the Senior Notes of any series, then the Senior Note Indenture Trustee or the holders of not less than 25% in aggregate outstanding principal amount of the Senior Notes of such series may declare the principal amount of the Senior Notes due and payable immediately by notice in writing to the Company (and to the Senior Note Indenture Trustee if given by the holders), and upon any such declaration such principal amount shall become immediately due and payable.
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If ana Senior Note Indenture Event of Default due to the Company’s bankruptcy, insolvency or reorganization occurs, all unpaid principal, premium, if any, and interest with respect to the Senior Notes issued under the Senior Note Indenture will automatically become due and payable without any declaration or other act on the part of the Senior Note Indenture Trustee or any holder. The occurrence of an event described in (e) above with respect to a Subsidiary shall not constitute ana Senior Note Indenture Event of Default if (x) the creditors of such Subsidiary have no recourse to the Company or (y) such Subsidiary is not a “significant subsidiary” as defined in Regulation S-X under the 1933 Act. At any time after such a declaration of acceleration with respect to the Senior Notes of any series has been made and before a judgment or decree for payment of the money due has been obtained as provided in Article Five of the Senior Note Indenture, the holders of not less than a majority in aggregate outstanding principal amount of the Senior Notes of such series may, by written notice to the Company and the Senior Note Indenture Trustee, may rescind and annul such declaration and its consequences if the default has been cured or waived and the Company has paid or deposited with the Senior Note Indenture Trustee a sum sufficient to pay all matured installments of interest and principal due otherwise than by acceleration and all sums paid or advanced by the Senior Note Indenture Trustee, including reasonable compensation and expenses of the Senior Note Indenture Trustee.
The holders of not less than a majority in aggregate outstanding principal amount of the Senior Notes of any series may, on behalf of the holders of all the Senior Notes of such series, waive any past default with respect to such series, except (i) a default in the payment of principal or interest or (ii) a default in respect of a covenant or provision which under Article Nine of the Senior Note Indenture cannot be modified or amended without the consent of the holder of each outstanding Senior Note of such series affected.
Registration and Transfer
The Company shall not be required to (i) issue, register the transfer of or exchange Senior Notes of any series during a period of 15 days immediately preceding the date notice is given identifying the Senior Notes of such series called for redemption or (ii) issue, register the transfer of or exchange any Senior Notes so selected for redemption, in whole or in part, except the unredeemed portion of any Senior Note being redeemed in part.
Payment and Paying Agent
Unless otherwise indicated in an applicable Prospectus Supplement, payment of principal of any Senior Notes will be made only against surrender to the Paying Agent of such Senior Notes. Principal of and interest on Senior Notes will be payable, subject to any applicable laws and regulations, at the office of such Paying Agent or Paying Agents as the Company may designate from time to time, except that, at the option of the Company, payment of any interest may be made by wire transfer or other electronic transfer or by check mailed to the address of the person entitled to an interest payment as such address shall appear in the Security Register with respect to the Senior Notes. Payment of interest on Senior Notes on any

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interest payment date will be made to the person in whose name the Senior Notes (or predecessor security) are registered at the close of business on the record date for such interest payment.
Unless otherwise indicated in an applicable Prospectus Supplement, the Senior Note Indenture Trustee will act as Paying Agent with respect to the Senior Notes. The Company may at any time designate additional Paying Agents or rescind the designation of any Paying Agents or approve a change in the office through which any Paying Agent acts.
All moneys paid by the Company to a Paying Agent for the payment of the principal of or interest on the Senior Notes of any series which remain unclaimed at the end of two years after such principal or interest shall have become due and payable will be repaid to the Company, and the holder of such Senior Notes will from that time forward look only to the Company for payment of such principal and interest.
Modification
The Senior Note Indenture contains provisions permitting the Company and the Senior Note Indenture Trustee, with the consent of the holders of not less than a majority in principal amount of the outstanding Senior Notes of each series that is affected, to modify the Senior Note Indenture or the rights of the holders of the Senior Notes of such series; provided, that no such modification may, without the consent of the holder of each outstanding Senior Note that is affected, (i) change the stated maturity of the principal of, or any installment of principal of or interest on, any Senior Note, or reduce the principal amount of any Senior Note or the rate of interest on any Senior Note or any premium payable upon the redemption thereof,of any Senior Note, or change the method of calculating the rate of interest on any Senior Note, or impair the right to institute suit for the enforcement of any such payment on or after the stated maturity of any Senior Note (or, in the case of redemption, on or after the redemption date), or (ii) reduce the percentage of principal amount of the outstanding Senior Notes of any series, the consent of whose holders is required for any such supplemental indenture, or the consent of whose holders is required for any waiver (of compliance with certain provisions of the Senior Note Indenture or certain defaults under the Senior Note Indenture and their consequences) provided for in the Senior Note Indenture, or (iii) modify any of the provisions of the Senior Note Indenture
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relating to supplemental indentures, waiver of past defaults or waiver of certain covenants, except to increase any such percentage or to provide that certain other provisions of the Senior Note Indenture cannot be modified or waived without the consent of the holder of each outstanding Senior Note that is affected.
In addition, the Company and the Senior Note Indenture Trustee may execute, without the consent of any holders of Senior Notes, any supplemental indenture for certain other usual purposes, including the creation of any new series of Senior Notes.
Consolidation, Merger and Sale
The Company shall not consolidate with or merge into any other corporation or convey, transfer or lease its properties and assets substantially as an entirety to any person, unless (1) such other corporation or person is a corporation organized and existing under the laws of the United States, any state in the United States or the District of Columbia and such other corporation or person expressly assumes, by supplemental indenture executed and delivered to the Senior Note Indenture Trustee, the payment of the principal of, (and premium, if any, on)on and interest on all the Senior Notes and the performance of every covenant of the Senior Note Indenture on the part of the Company to be performed or observed; (2) immediately after giving effect to such transactions, no Senior Note Indenture Event of Default, and no event which, after notice or lapse of time or both, would become ana Senior Note Indenture Event of Default, shall have happened and be continuing; and (3) the Company has delivered to the Senior Note Indenture Trustee an officers’ certificate and an opinion of counsel, each stating that such transaction complies with the provisions of the Senior Note Indenture governing consolidation, merger, conveyance, transfer or lease and that all conditions precedent to the transaction have been complied with.
Information Concerning the Senior Note Indenture Trustee
The Senior Note Indenture Trustee, prior to ana Senior Note Indenture Event of Default with respect to Senior Notes of any series, undertakes to perform, with respect to Senior Notes of such series, only such duties as are specifically set forth in the Senior Note Indenture and, in case ana Senior Note Indenture Event of Default with respect to Senior Notes of any series has occurred and is continuing, shall exercise, with respect to Senior Notes of such series, the same degree of care as a prudent individual would exercise in the conduct of his or her own affairs. Subject to such provision, the Senior Note Indenture Trustee is under no obligation to exercise any of the powers vested in it by the Senior Note Indenture at the request of any holder of Senior Notes of any series, unless offered reasonable indemnity by such holder against the costs, expenses and liabilities which might be incurred by the Senior Note Indenture Trustee. The Senior Note Indenture Trustee is not required to expend or risk its own funds or otherwise incur any financial liability in the performance of its duties if the Senior Note Indenture Trustee reasonably believes that repayment or adequate indemnity is not reasonably assured to it.

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The CompanySenior Note Indenture Trustee may serve as the Subordinated Note Indenture Trustee. The Senior Note Indenture Trustee and certain of its affiliates maintain deposit accounts and banking relationships with The Bank of New York Mellon. The Bank of New York Mellon and certain of its affiliatesmay also serve as trustee under other indentures pursuant to which securities of the Company and certain of its affiliates are outstanding.
Governing Law
The Senior Note Indenture and the Senior Notes will be governed by, and construed in accordance with, the internal laws of the State of New York.
Miscellaneous
The Company will have the right at all times to assign any of its rights or obligations under the Senior Note Indenture to a direct or indirect wholly-owned subsidiary of the Company; provided, that, in the event of any such assignment, the Company will remain primarily liable for all such obligations. Subject to the foregoing, the Senior Note Indenture will be binding upon and inure to the benefit of the parties to the Senior Note Indenture and their respective successors and assigns.
DESCRIPTION OF THE JUNIOR SUBORDINATED NOTES
Set forth below is a description of the general terms of the Junior Subordinated Notes. The following description does not purport to be complete and is subject to, and is qualified in its entirety by reference to, the Subordinated Note Indenture to be entered into between the Company and the trustee named in the Subordinated Note Indenture (the “Subordinated Note Indenture Trustee”), as to be supplemented by a supplemental indenture to the Subordinated Note Indenture establishing the Junior Subordinated Notes of each series (the Subordinated Note Indenture, as so supplemented, is referred to as the “Subordinated Note Indenture”), the forms of which are filed as exhibits to the Registration Statement of which this Prospectus forms a part. The terms of the Junior Subordinated Notes will include those stated in the Subordinated Note Indenture and those
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made a part of the Subordinated Note Indenture by reference to the 1939 Act. Certain capitalized terms used and not defined in this section of the Prospectus are defined in the Subordinated Note Indenture.
General
The Junior Subordinated Notes will be issued as unsecured junior subordinated debt securities under the Subordinated Note Indenture. The Subordinated Note Indenture does not limit the aggregate principal amount of Junior Subordinated Notes that may be issued under the Subordinated Note Indenture and provides that Junior Subordinated Notes may be issued from time to time in one or more series pursuant to an indenture supplemental to the Subordinated Note Indenture. The Subordinated Note Indenture gives the Company the ability to reopen a previous issue of Junior Subordinated Notes and issue additional Junior Subordinated Notes of such series, unless otherwise provided.
Reference is made to the Prospectus Supplement that will accompany this Prospectus for the following terms of the series of Junior Subordinated Notes being offered by such Prospectus Supplement: (i) the title of such Junior Subordinated Notes; (ii) any limit on the aggregate principal amount of such Junior Subordinated Notes; (iii) the date or dates on which the principal of such Junior Subordinated Notes is payable; (iv) the rate or rates at which such Junior Subordinated Notes shall bear interest, if any, or any method by which such rate or rates will be determined, the date or dates from which such interest will accrue, the interest payment dates on which such interest shall be payable, and the regular record date for the interest payable on any interest payment date; (v) the place or places where the principal of, premium, if any, on and interest, if any, on such Junior Subordinated Notes shall be payable; (vi) the period or periods within which, the price or prices at which and the terms and conditions on which such Junior Subordinated Notes may be redeemed, in whole or in part, at the option of the Company or at the option of the holder prior to their maturity; (vii) the obligation, if any, of the Company to redeem or purchase such Junior Subordinated Notes; (viii) the denominations in which such Junior Subordinated Notes shall be issuable; (ix) if other than the principal amount of such Junior Subordinated Notes, the portion of the principal amount of such Junior Subordinated Notes which shall be payable upon declaration of acceleration of the maturity of such Junior Subordinated Notes; (x) any deletions from, modifications of or additions to the Events of Default or covenants of the Company as provided in the Subordinated Note Indenture pertaining to such Junior Subordinated Notes; (xi) whether such Junior Subordinated Notes shall be issued in whole or in part in the form of a Global Security; (xii) the right, if any, of the Company to extend the interest payment periods of such Junior Subordinated Notes; and (xiii) any other terms of such Junior Subordinated Notes.
The Subordinated Note Indenture does not contain provisions that afford holders of Junior Subordinated Notes protection in the event of a highly leveraged transaction involving the Company.
Subordination
The Junior Subordinated Notes are subordinated and junior in right of payment to all Senior Indebtedness (as defined below) of the Company. No payment of principal of (including redemption payments, if any), or premium, if any, on or interest on (including Additional Interest (as defined below)) the Junior Subordinated Notes may be made if (a) any Senior Indebtedness is not paid when due and any applicable grace period with respect to such default has ended with such default not being cured or waived or otherwise ceasing to exist, or (b) the maturity of any Senior Indebtedness has been accelerated because of a default, or (c) notice has been given of the exercise of an option to require repayment, mandatory payment or prepayment or otherwise of the Senior Indebtedness. Upon any payment or distribution of assets of the Company to creditors upon any liquidation, dissolution, winding-up, reorganization, assignment for the benefit of creditors, marshalling of assets or liabilities, or any bankruptcy, insolvency or similar proceedings of the Company, the holders of Senior Indebtedness shall be entitled to receive payment in full of all amounts due or to become due on or in respect of all Senior Indebtedness before the holders of the Junior Subordinated Notes are entitled to receive or retain any payment or distribution. Subject to the prior payment of all Senior Indebtedness, the rights of the holders of the Junior Subordinated Notes will be subrogated to the rights of the holders of Senior Indebtedness to receive payments and distributions applicable to such Senior Indebtedness until all amounts owing on the Junior Subordinated Notes are paid in full.
The term “Senior Indebtedness” means, with respect to the Company, (i) any payment due in respect of indebtedness of the Company, whether outstanding at the date of execution of the Subordinated Note Indenture or incurred, created or assumed after such date, (a) in respect of money borrowed (including any financial derivative, hedging or futures contract or similar instrument) and (b) evidenced by securities, debentures, bonds, notes or other similar instruments issued by the Company that, by their terms, are senior or senior subordinated debt securities including, without limitation, all such obligations under its indentures with various trustees; (ii) all capital lease obligations; (iii) all obligations issued or assumed as the deferred purchase price of property, all conditional sale obligations and all obligations of the Company under any title retention agreement (but excluding trade accounts payable arising in the ordinary course of business and long-term purchase obligations); (iv) all obligations for the reimbursement of any letter of credit, banker’s acceptance, security purchase facility or similar credit transaction; (v) all obligations of the type referred to in clauses (i) through (iv) above of other persons the payment of which the Company is responsible or liable as obligor, guarantor or otherwise; and (vi) all obligations of the type referred to in clauses (i)
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through (v) above of other persons secured by any lien on any property or asset of the Company (whether or not such obligation is assumed by the Company), except for (1) any such indebtedness that is by its terms subordinated to or that ranks equally with the Junior Subordinated Notes and (2) any unsecured indebtedness between or among the Company or its affiliates. Such Senior Indebtedness shall continue to be Senior Indebtedness and be entitled to the benefits of the subordination provisions contained in the Subordinated Note Indenture irrespective of any amendment, modification or waiver of any term of such Senior Indebtedness.
The Subordinated Note Indenture does not limit the aggregate amount of Senior Indebtedness that may be issued by the Company. As of September 30, 2022, Senior Indebtedness of the Company aggregated approximately $3,237,000,000.
Additional Interest
“Additional Interest” is defined in the Subordinated Note Indenture as any interest due and not paid on an interest payment date, together with interest on such interest due from such interest payment date to the date of payment, compounded quarterly, on each interest payment date.
Certain Covenants
The Company covenants in the Subordinated Note Indenture, for the benefit of the holders of each series of Junior Subordinated Notes, that, (i) if at such time the Company shall have given notice of its election to extend an interest payment period for such series of Junior Subordinated Notes and such extension shall be continuing or (ii) if at such time an Event of Default under the Subordinated Note Indenture with respect to such series of Junior Subordinated Notes shall have occurred and be continuing, (a) the Company shall not declare or pay any dividend or make any distributions with respect to, or redeem, purchase, acquire or make a liquidation payment with respect to, any of its capital stock, and (b) the Company shall not make any payment of interest on, principal of or premium, if any, on or repay, repurchase or redeem any debt securities (including guarantees) issued by the Company which rank equally with or junior to the Junior Subordinated Notes. None of the foregoing, however, shall restrict (i) any of the actions described in the preceding sentence resulting from any reclassification of the Company’s capital stock or the exchange or conversion of one class or series of the Company’s capital stock for another class or series of the Company’s capital stock, (ii) the purchase of fractional interests in shares of the Company’s capital stock pursuant to the conversion or exchange provisions of such capital stock or the security being converted or exchanged or (iii) dividends, payments or distributions payable in shares of capital stock.
Events of Default
The Subordinated Note Indenture provides that any one or more of the following described events with respect to the Junior Subordinated Notes of any series, which has occurred and is continuing, constitutes an “Event of Default” with respect to such series:
(a)  failure for 10 days to pay interest on the Junior Subordinated Notes of such series, including any Additional Interest in respect of the Junior Subordinated Notes of such series, when due on an interest payment date other than at maturity or upon earlier redemption; provided, however, that a valid extension of the interest payment period by the Company shall not constitute a default in the payment of interest for this purpose; or
(b)  failure to pay principal of, or premium, if any, on or interest, including Additional Interest, on the Junior Subordinated Notes of such series when due at maturity or upon earlier redemption; or
(c)  failure for three Business Days to deposit any sinking fund payment when due by the terms of a Junior Subordinated Note of such series; or
(d)  failure to observe or perform any other covenant or warranty of the Company in the Subordinated Note Indenture (other than a covenant or warranty which has expressly been included in the Subordinated Note Indenture solely for the benefit of one or more series of Junior Subordinated Notes other than such series) for 90 days after written notice to the Company from the Subordinated Note Indenture Trustee or the holders of at least 25% in principal amount of the outstanding Junior Subordinated Notes of such series; or
(e)  certain events of bankruptcy, insolvency or reorganization of the Company; or
(f)   any other default provided with respect to the Junior Subordinated Notes of such series in the supplemental indenture authorizing the Junior Subordinated Notes of such series.
The holders of not less than a majority in aggregate outstanding principal amount of the Junior Subordinated Notes of any series have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Subordinated Note Indenture Trustee with respect to the Junior Subordinated Notes of such series. If a Subordinated Note
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Indenture Event of Default occurs and is continuing with respect to the Junior Subordinated Notes of any series, then the Subordinated Note Indenture Trustee or the holders of not less than 25% in aggregate outstanding principal amount of the Junior Subordinated Notes of such series may declare the principal amount of the Junior Subordinated Notes due and payable immediately by notice in writing to the Company (and to the Subordinated Note Indenture Trustee if given by the holders), and upon any such declaration such principal amount shall become immediately due and payable. At any time after such a declaration of acceleration with respect to the Junior Subordinated Notes of any series has been made and before a judgment or decree for payment of the money due has been obtained as provided in Article Five of the Subordinated Note Indenture, the holders of not less than a majority in aggregate outstanding principal amount of the Junior Subordinated Notes of such series may, by written notice to the Company and the Subordinated Note Indenture Trustee, rescind and annul such declaration and its consequences if the default has been cured or waived and the Company has paid or deposited with the Subordinated Note Indenture Trustee a sum sufficient to pay all matured installments of interest (including any Additional Interest) and principal due otherwise than by acceleration and all sums paid or advanced by the Subordinated Note Indenture Trustee, including reasonable compensation and expenses of the Subordinated Note Indenture Trustee.
The holders of not less than a majority in aggregate outstanding principal amount of the Junior Subordinated Notes of any series may, on behalf of the holders of all the Junior Subordinated Notes of such series, waive any past default with respect to such series, except (i) a default in the payment of principal or interest or (ii) a default in respect of a covenant or provision which under Article Nine of the Subordinated Note Indenture cannot be modified or amended without the consent of the holder of each outstanding Junior Subordinated Note of such series affected.
Registration and Transfer
The Company shall not be required to (i) issue, register the transfer of or exchange Junior Subordinated Notes of any series during a period of 15 days immediately preceding the date notice is given identifying the Junior Subordinated Notes of such series called for redemption or (ii) issue, register the transfer of or exchange any Junior Subordinated Notes so selected for redemption, in whole or in part, except the unredeemed portion of any Junior Subordinated Note being redeemed in part.
Payment and Paying Agent
Unless otherwise indicated in an applicable Prospectus Supplement, payment of principal of any Junior Subordinated Notes will be made only against surrender to the Paying Agent of such Junior Subordinated Notes. Principal of and interest on Junior Subordinated Notes will be payable, subject to any applicable laws and regulations, at the office of such Paying Agent or Paying Agents as the Company may designate from time to time, except that, at the option of the Company, payment of any interest may be made by wire transfer or other electronic transfer or by check mailed to the address of the person entitled to an interest payment as such address shall appear in the Security Register with respect to the Junior Subordinated Notes. Payment of interest on Junior Subordinated Notes on any interest payment date will be made to the person in whose name the Junior Subordinated Notes (or predecessor security) are registered at the close of business on the record date for such interest payment.
Unless otherwise indicated in an applicable Prospectus Supplement, the Subordinated Note Indenture Trustee will act as Paying Agent with respect to the Junior Subordinated Notes. The Company may at any time designate additional Paying Agents or rescind the designation of any Paying Agents or approve a change in the office through which any Paying Agent acts.
All moneys paid by the Company to a Paying Agent for the payment of the principal of or interest on the Junior Subordinated Notes of any series which remain unclaimed at the end of two years after such principal or interest shall have become due and payable will be repaid to the Company, and the holder of such Junior Subordinated Notes will from that time forward look only to the Company for payment of such principal and interest.
Modification
The Subordinated Note Indenture contains provisions permitting the Company and the Subordinated Note Indenture Trustee, with the consent of the holders of not less than a majority in principal amount of the outstanding Junior Subordinated Notes of each series that is affected, to modify the Subordinated Note Indenture or the rights of the holders of the Junior Subordinated Notes of such series; provided, that no such modification may, without the consent of the holder of each outstanding Junior Subordinated Note that is affected, (i) change the stated maturity of the principal of, or any installment of principal of or interest on, any Junior Subordinated Note, or reduce the principal amount of any Junior Subordinated Note or the rate of interest (including Additional Interest) on any Junior Subordinated Note or any premium payable upon the redemption thereof, or change the method of calculating the rate of interest on any Junior Subordinated Note, or impair the right to institute suit for the enforcement of any such payment on or after the stated maturity of any Junior Subordinated Note (or, in the case of redemption, on or after the redemption date), or (ii) reduce the percentage of principal amount of the outstanding Junior Subordinated Notes of any series, the consent of whose holders is required for any such supplemental indenture, or the consent of whose holders is required for any waiver (of compliance with certain provisions of the Subordinated Note Indenture or
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certain defaults under the Subordinated Note Indenture and their consequences) provided for in the Subordinated Note Indenture, or (iii) modify any of the provisions of the Subordinated Note Indenture relating to supplemental indentures, waiver of past defaults, or waiver of certain covenants, except to increase any such percentage or to provide that certain other provisions of the Subordinated Note Indenture cannot be modified or waived without the consent of the holder of each outstanding Junior Subordinated Note that is affected, or (iv) modify the provisions of the Subordinated Note Indenture with respect to the subordination of the Junior Subordinated Notes in a manner adverse to such holder.
In addition, the Company and the Subordinated Note Indenture Trustee may execute, without the consent of any holders of Junior Subordinated Notes, any supplemental indenture for certain other usual purposes, including the creation of any new series of Junior Subordinated Notes.
Consolidation, Merger and Sale
The Company shall not consolidate with or merge into any other corporation or convey, transfer or lease its properties and assets substantially as an entirety to any person, unless (1) such other corporation or person is a corporation organized and existing under the laws of the United States, any state of the United States or the District of Columbia and such other corporation or person expressly assumes, by supplemental indenture executed and delivered to the Subordinated Note Indenture Trustee, the payment of the principal of, and premium, if any, on and interest (including Additional Interest) on all the Junior Subordinated Notes and the performance of every covenant of the Subordinated Note Indenture on the part of the Company to be performed or observed; (2) immediately after giving effect to such transactions, no Subordinated Note Indenture Event of Default, and no event which, after notice or lapse of time or both, would become a Subordinated Note Indenture Event of Default, shall have happened and be continuing; and (3) the Company has delivered to the Subordinated Note Indenture Trustee an officers’ certificate and an opinion of counsel, each stating that such transaction complies with the provisions of the Subordinated Note Indenture governing consolidation, merger, conveyance, transfer or lease and that all conditions precedent to the transaction have been complied with.
Information Concerning the Subordinated Note Indenture Trustee
The Subordinated Note Indenture Trustee, prior to a Subordinated Note Indenture Event of Default with respect to Junior Subordinated Notes of any series, undertakes to perform, with respect to Junior Subordinated Notes of such series, only such duties as are specifically set forth in the Subordinated Note Indenture and, in case a Subordinated Note Indenture Event of Default with respect to Junior Subordinated Notes of any series has occurred and is continuing, shall exercise, with respect to Junior Subordinated Notes of such series, the same degree of care as a prudent individual would exercise in the conduct of his or her own affairs. Subject to such provision, the Subordinated Note Indenture Trustee is under no obligation to exercise any of the powers vested in it by the Subordinated Note Indenture at the request of any holder of Junior Subordinated Notes of any series, unless offered reasonable indemnity by such holder against the costs, expenses and liabilities which might be incurred by the Subordinated Note Indenture Trustee. The Subordinated Note Indenture Trustee is not required to expend or risk its own funds or otherwise incur any financial liability in the performance of its duties if the Subordinated Note Indenture Trustee reasonably believes that repayment or adequate indemnity is not reasonably assured to it.
The Subordinated Note Indenture Trustee may also serve as Senior Note Indenture Trustee. The Company and certain of its affiliates may maintain deposit accounts and banking relationships with the Subordinated Note Indenture Trustee. The Subordinated Note Indenture Trustee may serve as trustee under other indentures pursuant to which securities of the Company or certain affiliates of the Company are outstanding.
Governing Law
The Subordinated Note Indenture and the Junior Subordinated Notes will be governed by, and construed in accordance with, the internal laws of the State of New York.
Miscellaneous
The Company will have the right at all times to assign any of its rights or obligations under the Subordinated Note Indenture to a direct or indirect wholly-owned subsidiary of the Company; provided, that, in the event of any such assignment, the Company will remain primarily liable for all such obligations. Subject to the foregoing, the Subordinated Note Indenture will be binding upon and inure to the benefit of the parties to the Subordinated Note Indenture and their respective successors and assigns.
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PLAN OF DISTRIBUTION
The Company may sell the PreferencePreferred Stock, the Senior Notes and Seniorthe Junior Subordinated Notes in one or more of the following ways from time to time: (i) to underwriters for resale to the public or to institutional investors; (ii) directly to institutional investors; or (iii) through agents to the public or to institutional investors. The Prospectus Supplement with respect to each series of PreferencePreferred Stock, Senior Notes or SeniorJunior Subordinated Notes will set forth the terms of the offering of such PreferencePreferred Stock, Senior Notes or SeniorJunior Subordinated Notes, including the name or names of any underwriters or agents, the purchase price of such PreferencePreferred Stock, Senior Notes or SeniorJunior Subordinated Notes and the proceeds to the Company from such sale, any underwriting discounts or agency fees and other items constituting underwriters’ or agents’ compensation, any initial public offering price, any discounts or concessions allowed or reallowed or paid to dealers and any securities exchange on which such PreferencePreferred Stock, Senior Notes or SeniorJunior Subordinated Notes may be listed.
If underwriters participate in the sale, such PreferencePreferred Stock, Senior Notes or SeniorJunior Subordinated Notes will be acquired by the underwriters for their own accounts and may be resold from time to time in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale.
Unless otherwise set forth in the Prospectus Supplement, the obligations of the underwriters to purchase any series of PreferencePreferred Stock, Senior Notes or SeniorJunior Subordinated Notes will be subject to certain conditions precedent and the underwriters will be obligated to purchase all of such series of PreferencePreferred Stock, Senior Notes or SeniorJunior Subordinated Notes, if any are purchased.
UnderUnderwriters and agents may be entitled under agreements entered into with the Company underwriters and agents may be entitled to indemnification against certain civil liabilities, including liabilities under the 1933 Act. Underwriters and agents and their affiliates may engage in transactions with, or perform services for, the Company in the ordinary course of business, for which they may receive customary compensation.
Each series of PreferencePreferred Stock, Senior Notes or SeniorJunior Subordinated Notes will be a new issue of securities and will have no established trading market. Any underwriters to whom PreferencePreferred Stock, Senior Notes or SeniorJunior Subordinated Notes are sold for public offering and sale may make a market in such PreferencePreferred Stock, Senior Notes or SeniorJunior Subordinated Notes, but such underwriters will not be obligated to do so and may discontinue any market making at any time without notice. The PreferencePreferred Stock, or the Senior Notes and the Junior Subordinated Notes may or may not be listed on a national securities exchange.
LEGAL MATTERS
The validity of the PreferencePreferred Stock, the Senior Notes and the SeniorJunior Subordinated Notes and certain matters relating to such securities will be passed upon on behalf of the Company by Troutman Pepper Hamilton Sanders LLP, Atlanta, Georgia. Certain legal matters will be passed upon for the underwriters by Hunton & WilliamsAndrews Kurth LLP, New York, New York. From time to time Hunton & WilliamsAndrews Kurth LLP acts as counsel to affiliates of the Company for some matters.
EXPERTS
The consolidated financial statements and the related consolidated financial statement schedule of Southern Power Company and subsidiary companies as of December 31, 2021 and 2020, and for each of the three years in the period ended December 31, 2021, incorporated by reference in this Prospectus by reference from the Company’s Annual Report on Form 10-K have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report, which is incorporated herein by reference.reports. Such consolidated financial statements have been soand the consolidated financial statement schedule are incorporated by reference in reliance upon the reportreports of such firm given upon their authority as experts in accounting and auditing.


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PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14.    Other Expenses of Issuance and Distribution.
The estimated expenses of issuance and distribution, other than underwriting discounts and commissions, to be borne by the Company are as follows:*
Securities and Exchange Commission registration fee$348,600
Fees and expenses of trustees and/or Transfer Agent and Registrar20,000
Listing fees of New York Stock Exchange65,300
Rating Agency fees1,165,000
Services of Southern Company Services, Inc.80,000
Fees and expenses of counsel280,000
Blue sky fees and expenses20,000
Fees of accountants250,000
Miscellaneous expenses71,100
  
Total$2,300,000

Securities and Exchange Commission registration fee$165,300 
Fees and expenses of trustees*
Rating agency fees*
Services of Southern Company Services, Inc.*
Fees and expenses of counsel*
Blue sky fees and expenses*
Fees of accountants*
Miscellaneous expenses*
Total$             *

* Each Prospectus Supplement will reflect estimated expenses of the Company based upon the amount of the related offering.
Item 15.    Indemnification of Directors and Officers.
Section 145 of Title 8 of the Delaware Code gives a corporation power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the corporation) by reason of the fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise, against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in connection with such action, suit or proceeding if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation, and, with respect to any criminal action or proceeding, had no reasonable cause to believe the person’s conduct was unlawful. The same section also gives a corporation power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor by reason of the fact that the person is or was a director, officer, employee or agent of the corporation, or is or was serving at the request of the corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against expenses (including attorneys’ fees) actually and reasonably incurred by the person in connection with the defense or settlement of such action or suit if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation and except that no indemnification shall be made in respect of any claim, issue or matter as to which such person shall have been adjudged to be liable to the corporation unless and only to the extent that the Delaware Court of Chancery or the court in which such action or suit was brought shall determine upon application that, despite the adjudication of liability but in view of all the circumstances of the case, such person is fairly and reasonably entitled to indemnity for such expenses which the Delaware Court of Chancery or such other court shall deem proper. Also, the section states that, to the extent that a present or former director or officer of a corporation has been successful on the merits or otherwise in defense of any such action, suit or proceeding referred to above, or in the defense of any claim, issue or matter therein, such person shall be indemnified against expenses (including attorneys’ fees) actually and reasonably incurred by such person in connection therewith.
The Bylaws of the Company provide in substance that no present or future director or officer of the corporation, or his heirs, executors or administrators, shall be liable for any act, omission, step or conduct taken or had in good faith, which is required, authorized or approved by any order or orders issued pursuant to the Federal Power Act, as amended, or any federal or state statute or municipal ordinance regulating the Company or its parent by reason of their being holding or investment companies, public utility companies, public utility holding companies or subsidiaries of public utility holding companies. In any action, suit or proceeding based on any act, omission, step or conduct, as in this paragraph described, the provisions hereof

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shall be brought to the attention of the court. In the event that the foregoing provisions of this paragraph are found by the court not to constitute a valid defense on the grounds of not being applicable to the particular class of plaintiff, each such director and
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officer, and his heirs, executors and administrators, shall be reimbursed for, or indemnified against, all expenses and liabilities incurred by him or imposed on him, in connection with, or arising out of, any such action, suit or proceeding based on any act, omission, step, or conduct taken or had in good faith as in such Bylaws described. Such expenses and liabilities shall include judgments, court costs and attorneys’ fees.
The Bylaws of the Company further provide as follows:
“Each person who is or was a director of the corporation or officer or employee of the corporation holding one or more positions of management through and inclusive of managers (but not positions below the level of such managers) (such positions being hereinafter referred to as “Management Positions”) and who was or is a party or was or is threatened to be made a party to any threatened, pending or completed claim, action, suit or proceeding, whether civil, criminal, administrative or investigative, by reason of the fact that he is or was a director of the corporation or officer or employee of the corporation holding one or more Management Positions, or is or was serving at the request of the corporation as a director (or the equivalent), alternate director, officer, employee, agent or trustee of another corporation, partnership, joint venture, trust, employee benefit plan or other enterprise, shall be indemnified by the corporation as a matter of right against any and all expenses (including attorneys’ fees) actually and reasonably incurred by him and against any and all claims, judgments, fines, penalties, liabilities and amounts paid in settlement actually incurred by him in defense of such claim, action, suit or proceeding, including appeals, to the full extent permitted by applicable law. The indemnification provided by this section shall inure to the benefit of the heirs, executors and administrators of such person.
Expenses (including attorneys’ fees) incurred by a director of the corporation or officer or employee of the corporation holding one or more Management Positions with respect to the defense of any such claim, action, suit or proceeding may be advanced by the corporation prior to the final disposition of such claim, action, suit or proceeding, as authorized by the board of directors in the specific case, upon receipt of an undertaking by or on behalf of such person to repay such amount unless it shall ultimately be determined that such person is entitled to be indemnified by the corporation under these bylaws or otherwise; provided, however, that the advancement of such expenses shall not be deemed to be indemnification unless and until it shall ultimately be determined that such person is entitled to be indemnified by the corporation.”
The Company has an insurance policy covering its liabilities and expenses which might arise in connection with its lawful indemnification of its directors and officers for certain of their liabilities and expenses and also covering its officers and directors against certain other liabilities and expenses.
Item16.Item 16.    Exhibits.
Exhibit

Number
1.1Form of Underwriting Agreement relating to the PreferencePreferred Stock.*
1.2Form of Underwriting Agreement relating to the Senior Notes.*
3.11.3Form of Underwriting Agreement relating to the Junior Subordinated Notes.*
4.1
Certificate of Incorporation of Southern Power Company dated January 8, 2001 (Designated(Designated in Registration No. 333-98553, as Exhibit 3.1).
3.24.2
Bylaws of Southern Power Company effective January 8, 2001 (Designated(Designated in Registration No. 333-98553, as Exhibit 3.2).
4.14.3Form of Certificate of Amendment establishing the PreferencePreferred Stock.*
4.24.4Form of Certificate of Designation, Rights and Preferences establishing a series of the PreferencePreferred Stock.*
4.34.5
Senior Note Indenture dated as of June 1, 2002, between Southern Power Company and The Bank of New York Mellon (formerly known as The Bank of New York)Computershare Trust Company, N.A., as Successor Trustee, and certain indentures supplemental thereto through May 20, 2015January 8, 2021. (Designated in Registration No. 333-98553 as ExhibitsExhibit 4.1 and 4.2, in Form 10-Q for the quarter ended June 30, 2003, File No. 333-98553, as Exhibit 4(g), in Form 8-K dated November 13, 2006, File No. 333-98553, as Exhibit 4.2, in Form 8-K dated September 14, 2011, File No. 333-98553, as Exhibit 4.4, in Form 8-K dated July 10, 2013, File No. 333-98553, as Exhibit 4.4 and, in Form 8-K dated May 14,November 12, 2015, File No. 333-98553, as ExhibitsExhibit 4.4(a), in Form 8-K dated June 13, 2016, File No. 001-37803, as Exhibit 4.4(a), in Form 10-Q for the quarter ended September 30, 2016, File No. 001-37803, as Exhibit 4(f)1, in Form 10-Q for the quarter ended September 30, 2016, File No. 001-37803, as Exhibit 4(f)2, in Form 8-K dated November 10, 2016, File No. 001-37803, as Exhibit 4.4(b), in Form 8-K dated November 10, 2016, File No. 001-37803, as Exhibit 4.4(c), in Form 10-K for the year ended December 31, 2017, File No. 001-37803, as Exhibit 4(f)2, and 4.4(b)in Form 8-K dated January 5, 2021, File No. 001-3783, as Exhibit 4.4.)
4.44.6Form of Supplemental Indenture to Senior Note Indenture to be used in connection with the issuance of Senior Notes.*
4.54.7
Form of Subordinated Note Indenture relating to the Junior Subordinated Notes. (Designated in Registration No. 333-213264, as Exhibit 4.7).
4.8Form of Supplemental Indenture to Subordinated Note Indenture to be used in connection with the issuance of Junior Subordinated Notes.*
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Exhibit
Number
4.9Form of Senior Note (included in Exhibit 4.44.6 above).
4.10Form of Junior Subordinated Note (included in Exhibit 4.8 above).
5.1
12.1Computation of ratio of earnings to fixed charges.
23.1Consent of Troutman Pepper Hamilton Sanders LLP (included in Exhibit 5.1 above).

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Exhibit
Number
23.2
24.1
25.1
25.2Statement of Eligibility under Trust Indenture Act of 1939, as amended, of The Bank of New York Mellon, as Seniorthe Subordinated Note Indenture Trustee.**
107
Exhibits listed above which have heretofore been filed with the Commission and which were designated as noted above are hereby incorporated herein by reference and made a part hereof with the same effect as if filed herewith.

* To be subsequently filed or incorporated by reference.
**To be filed separately pursuant to the Trust Indenture Act of 1939, as amended, Section 305(b)(2).
Item17.Item 17.    Undertakings.
(a)  Undertaking related to Rule 415 offering:
The undersigned registrant hereby undertakes:
(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:
(i)  To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;
(ii)  To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20 percent change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement;
(iii)  To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;
Provided, however, that paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) do not apply if the registration statement is on Form S-1, Form S-3, Form SF-3 or Form F-3 and the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to sectionSection 13 or sectionSection 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or, as to a registration statement on Form S-3, Form SF-3 or Form F-3, is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.
(2)  That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(3)  To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
(4)  That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:
(A)  Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and
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(B)  Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement

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or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.
(5)  That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities:
The undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:
(i)  Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;
(ii)  Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;
(iii)  The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and
(iv)  Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.
(b)  Undertaking related to filings incorporating subsequent Securities Exchange Act of 1934 documents by reference:
The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(c)  Undertaking related to acceleration of effectiveness:
Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.

(d)  The undersigned registrant hereby undertakes to file an application for the purpose of determining the eligibility of the Subordinated Note Indenture Trustee to act under subsection (a) of Section 310 of the Trust Indenture Act (the “Act”) in accordance with the rules and regulations prescribed by the Commission under Section 305(b)(2) of the Act.
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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, Southern Power Company certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Atlanta, State of Georgia, on July 15, 2015.October 28, 2022.

SOUTHERN POWER COMPANY
SOUTHERN POWER COMPANY
By:
Oscar C. Harper IV
PresidentChristopher Cummiskey
Chairman and
Chief Executive Officer
By:/s/Melissa K. Caen
Melissa K. Caen

Attorney-in-Fact

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the date indicated.

SIGNATURETITLEDATE
Christopher CummiskeyChairman and Chief Executive Officer
(Principal Executive Officer)
SIGNATUREGary KerrTITLEDATE
Oscar C. Harper IV
President, Chief Executive Officer and Director
(Principal Executive Officer)
William C. Grantham
Senior Vice President, Treasurer and
Chief Financial Officer
and Treasurer
(Principal Financial Officer)
Elliott L. Spencer
Comptroller and Corporate Secretary
(Principal Accounting Officer)
Art P. BeattieJelena Andrin
Vice President and Comptroller
(Principal Accounting Officer)
Bryan D. Anderson
Stanley W. Connally, Jr.
Christopher Cummiskey
Martin B. Davis
Thomas A. Fanning

Kimberly S. Greene

James Y. Kerr II
Mark
Daniel S. Lantrip
Christopher C. Womack
Tucker
directorbracketfors3sa13a.jpg
Directors

By:/s/Melissa K. CaenJuly 15, 2015October 28, 2022
Melissa K. Caen

Attorney-in-Fact



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