# EDGAR Filing Document

**Accession Number:** 0001326160
**File Stem:** 0001104659-25-095117
**Filing Date:** 2025-9
**Character Count:** 183036
**Document Hash:** 19b0f5ea3704270714785d0f51e37d18
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-095117.hdr.sgml**: 20250930

**ACCESSION NUMBER**: 0001104659-25-095117

**CONFORMED SUBMISSION TYPE**: S-3ASR

**PUBLIC DOCUMENT COUNT**: 21

**FILED AS OF DATE**: 20250930

**DATE AS OF CHANGE**: 20250930

**EFFECTIVENESS DATE**: 20250930

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Duke Energy CORP
- **CENTRAL INDEX KEY:** 0001326160
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC & OTHER SERVICES COMBINED [4931]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 202777218
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** S-3ASR
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-290634
- **FILM NUMBER:** 251361425

**BUSINESS ADDRESS:**
- **STREET 1:** 525 SOUTH TRYON STREET
- **CITY:** CHARLOTTE
- **STATE:** NC
- **ZIP:** 28202-1803
- **BUSINESS PHONE:** 800-488-3853

**MAIL ADDRESS:**
- **STREET 1:** 525 SOUTH TRYON STREET
- **CITY:** CHARLOTTE
- **STATE:** NC
- **ZIP:** 28202-1803

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Duke Energy Holding Corp.
- **DATE OF NAME CHANGE:** 20050628

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Deer Holding Corp.
- **DATE OF NAME CHANGE:** 20050504

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#### As filed with the Securities and Exchange Commission on September 30, 2025

#### Registration No. 333-

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

### Form S-3

#### REGISTRATION STATEMENT under THE SECURITIES ACT OF 1933
**Duke Energy Corporation** 

(Exact name of Registrant as Specified in Its Charter)

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| | |
|:---|:---|
| **Delaware** <br> (State or other jurisdiction of <br> incorporation or organization)  | **20-2777218** <br> (I.R.S. Employer <br> Identification Number)  |

---

#### 525 South Tryon Street Charlotte, North Carolina 28202 (800) 488-3853
(Address, Including Zip Code, And Telephone Number, Including Area Code, of Registrant's Principal Executive Offices)

#### Michael P. Callahan Senior Vice President and Treasurer Duke Energy Corporation 525 South Tryon Street Charlotte, North Carolina 28202 (800) 488-3853
(Name, Address Including Zip Code, And Telephone Number, Including Area Code, of Agent For Service)

#### Copies To:

#### Elizabeth H. Jones, Esq. Deputy General Counsel and Assistant Corporate Secretary Duke Energy Corporation 525 South Tryon Street Charlotte, North Carolina 28202 (800) 488-3853
 **Approximate date of commencement of proposed sale to the public: From time to time after this Registration Statement becomes effective as determined by market conditions and other factors.** 

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

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, check the following box: ☒

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. ☐

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. ☐

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. ☒

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), check the following box. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ☒ Accelerated filer ☐ Non-accelerated filer ☐ Smaller reporting company ☐ <br> Emerging growth company ☐

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 Securities Act. ☐

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#### Prospectus
![[MISSING IMAGE: lg_dukeenergyr-pn.jpg]](lg_dukeenergyr-pn.jpg)

### DUKE ENERGY CORPORATION

### VARIABLE DENOMINATION FLOATING RATE DEMAND NOTES
![[MISSING IMAGE: lg_premiernotes-pn.jpg]](lg_premiernotes-pn.jpg)

The Duke Energy PremierNotes<sup>®</sup> (or, the "Notes") are designed to provide you with a convenient means of investing your money directly with Duke Energy Corporation (or, "Duke Energy"). **An investment in the Notes involves risks. See "**Risk Factors**" on page [3](#tRIFA).** 

#### The Notes—

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| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; • are in book-entry form and have no stated maturity. <br>• are not rated by any rating agency and Duke Energy does not anticipate receiving a rating. <br>• are issuable in any amount. <br>• may be redeemed upon your demand as described in this prospectus. <br>• are subject to redemption by Duke Energy at any time. <br>• have a principal amount equal to the total amount of your investment, plus reinvested interest, after deducting redemptions and fees, if any. <br>• earn a floating rate of interest to be determined at the direction of the Duke Energy PremierNotes Committee. The initial interest rate applicable to the Notes and all subsequent changes to the initial interest rate will be disclosed in prospectus supplements filed with the Securities and Exchange Commission (or, the "SEC") and posted on the Duke Energy PremierNotes website <br>| &nbsp;&nbsp;&nbsp; • will rank equally in priority with all of Duke Energy's existing and future unsecured and unsubordinated indebtedness and will rank senior in right of payment to all of Duke Energy's existing and future subordinated debt. At June 30, 2025, Duke Energy had approximately $28.6 billion of outstanding indebtedness, consisting of approximately $26.6 billion of unsecured and unsubordinated indebtedness and $2.0 billion of unsecured junior subordinated indebtedness. <br>• are structurally subordinated to all indebtedness and other liabilities of Duke Energy's subsidiaries. At June 30, 2025, Duke Energy's subsidiaries had approximately $57.8 billion of indebtedness, payment upon approximately $650 million of which was guaranteed by Duke Energy. <br>• are offered on a continuous basis. Notes registered on the registration statement of which this prospectus is a part represent the maximum aggregate principal amount of the Notes, equal to $4,000,000,000, which are expected to be offered <br>|

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---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp; (www.duke-energy.com/premiernotes). <br> • earn interest which will accrue and be compounded daily and be automatically reinvested in Notes on the 15th day of each month. <br>| &nbsp;&nbsp;&nbsp; for sale. The outstanding principal amount of the Notes will increase and decrease from time to time. The maximum net aggregate principal amount of the Notes that may be outstanding at any one time is $2,000,000,000.  |

---

 **Please read this prospectus carefully and retain for future reference. Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined that this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.** 

The date of this prospectus is September 30, 2025

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#### **TABLE OF CONTENTS**

---

| | |
|:---|:---|
| | **Page**  |
| [Important Information](#tIMIN)  | [ii](#tIMIN) |
| [Summary](#tSUM)  | [1](#tSUM) |
| [The Company](#tTHCO)  | [3](#tTHCO) |
| [Risk Factors](#tRIFA)  | [3](#tRIFA) |
| [Use of Proceeds](#tUOP)  | [4](#tUOP) |
| [Forward-Looking Statements](#tFOST)  | [4](#tFOST) |
| [Duke Energy PremierNotes](#tDEP)  | [4](#tDEP) |
| [Agent Bank](#tAGBA)  | [26](#tAGBA) |
| [Description of the Notes](#tDOTN)  | [27](#tDOTN) |
| [Termination, Suspension or Modification](#tTSOM)  | [31](#tTSOM) |
| [Rights May Not Be Assigned, Transferred or Pledged](#tRMNB)  | [31](#tRMNB) |
| [Plan of Distribution](#tPOD)  | [32](#tPOD) |
| [Validity of Notes](#tVON)  | [32](#tVON) |
| [Experts](#tEXP)  | [32](#tEXP) |
| [Where You Can Find More Information](#tWYCF)  | [32](#tWYCF) |

---

 **We have not authorized anyone to provide any information other than that contained in this prospectus or in any free writing prospectus prepared by or on behalf of us or to which we have referred you. We take no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. We are not offering the Notes in any state where the offer is not permitted. We do not claim the accuracy of the information in this prospectus as of any date other than the date stated on the cover, regardless of the time of delivery of this prospectus or any sale of the Notes.** 

"PremierNotes" is a registered trademark of Duke Energy.

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IMPORTANT INFORMATION

An investment in the Notes involves risks. Prospective investors should carefully review the risk factors, as well as the other information, contained or incorporated by reference in this prospectus. You should consult your own financial and legal advisers as to the risks involved in an investment in the Notes and whether an investment is suitable for you.

All of the money you invest will be used to purchase Notes for you. All interest earned on your Notes will be reinvested monthly in additional Notes for your investment. All investments in the Notes are investments in unsecured debt obligations of Duke Energy Corporation. Only our assets are available to pay the principal and interest on the Notes. We do not maintain reserves for our obligations under the Notes and the Notes are not subject to any sinking fund. The Notes are unsecured and are not obligations of or guaranteed, endorsed or insured by any of our subsidiaries, The Northern Trust Company, which acts as the agent bank for the Notes, the Trustee or any other company. It is possible for you to lose some or all of your investment, including accrued interest, if we are unable to pay our debts, become bankrupt or seek creditor protection.

The Notes are not a money market fund, which is typically a diversified fund consisting of short-term debt securities of many issuers. The Notes are not subject to the requirements of the Investment Company Act of 1940 (including those regarding diversification and quality of investments for money market funds) or the Employee Retirement Income Security Act of 1974, as amended. The Notes are not equivalent to a deposit or other bank account and are not subject to the protection of Federal Deposit Insurance Corporation regulation or insurance or any other insurance. The Notes are not transferable, assignable or negotiable, they are not listed on any securities exchange, and there is no secondary market for the Notes. As a result, there is no public market valuation for the Notes.

The interest rate paid on investments in the Notes may not provide a basis for comparison with bank deposits or money market funds, which may use a different method of calculating yield, or other investments which pay a fixed yield for a stated period of time. The interest rate also does not necessarily bear any relation to the risks associated with or changes in our creditworthiness, credit rating or financial condition and may not compensate you for any increase in credit risk of investment in the Notes.

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#### Summary
Issuer

Duke Energy Corporation.

Title of Securities

Variable Denomination Floating Rate Demand Notes, marketed and sold as Duke Energy PremierNotes.

Amount

Up to $4,000,000,000 aggregate offering price. The maximum net aggregate principal amount of the Notes that may be outstanding at any one time is $2,000,000,000.

Investment Options

Check Investment, see page 9.

Automatic Investment, see page 10.

Directed Investment, see page 11.

Wire Transfer Investment, see page 12.

Automatic Social Security Investment, see page 13.

Duke Energy Employee Investment, see page 14.

Duke Energy Retiree Investment, see page 15.

Redemption Options

Check Redemption, see page 17.

Written Redemption, see page 18.

Bank Check Redemption, see page 18.

Wire Transfer Redemption, see page 19.

Directed Redemption, see page 21.

Status

The Notes are unsecured debt obligations of Duke Energy Corporation, rank equally and ratably with all of our other unsecured and non-subordinated debt, and rank senior in right of payment to all of our subordinated debt. Only our assets are available to pay principal and interest on the Notes. Duke Energy Corporation is a holding company, and we operate our businesses through our subsidiaries. The Notes are not obligations of or guaranteed, endorsed or insured by our subsidiaries, The Northern Trust Company, which acts as the agent bank for the Notes, the Trustee or any other company. We do not maintain reserves for our obligations under the Notes, and the Notes are not subject to any sinking fund.

The Notes are structurally subordinated to the indebtedness and other liabilities of our subsidiaries. As of June 30, 2025, the total indebtedness and other liabilities of our subsidiaries was $57.8 billion.

Maturity

The Notes mature on demand.

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Interest

The Notes will bear interest at a floating rate per annum to be determined at the direction of the Duke Energy PremierNotes Committee on a weekly basis to be effective on Monday of the week following such determination. Rates may vary by an investor's principal amount of Notes or other factors as determined at the direction of the Duke Energy PremierNotes Committee as provided for in the Duke Energy PremierNotes Plan. See page 6.

Principal

The principal amount of your Notes will equal all of your investments and reinvested interest less redemptions and fees, if any.

Fees

Fees, if any, may be assessed for failure to maintain a minimum investment balance of $1,000, investments or redemptions returned due to insufficient funds, stop payment requests, wire redemptions, check and ACH redemptions for less than $250 and other special services, see page 24.

Form of Notes

The Notes will be issued in uncertificated form, see page 28.

Maximum Total Investment

Duke Energy may institute a total maximum outstanding investment for any one investor. As of the date of this prospectus, Duke Energy has established a total maximum outstanding investment for any one investor of $10,000,000 at any time and may, in its sole discretion and at any time, change such total maximum outstanding investment. See page 28.

Redemption at Option of Duke Energy

The Notes may be redeemed by Duke Energy at its option, see page 29.

Agent Bank

The Northern Trust Company.

Tax Status

Interest credited to each of the Notes is reportable as taxable income for Federal tax purposes. Backup withholding may apply to certain persons, see page 25.

Trustee

The Bank of New York Mellon Trust Company, N.A.

Broker-Dealer

Georgeson Securities Corporation.

Rating

Duke Energy has not requested, and does not anticipate receiving, a rating for the Notes from any rating agency.

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#### THE COMPANY
Duke Energy Corporation, or Duke Energy, together with its subsidiaries, is a diversified energy company with both regulated and nonregulated utility operations. We conduct business through the following operating business segments: Electric Utilities and Infrastructure and Gas Utilities and Infrastructure.

Duke Energy's Electric Utilities and Infrastructure segment conducts operations primarily through the regulated public utilities of Duke Energy Carolinas, LLC, Duke Energy Progress, LLC, Duke Energy Florida, LLC, Duke Energy Indiana, LLC and Duke Energy Ohio, Inc. Duke Energy's Electric Utilities and Infrastructure segment provides retail electric service through the generation, transmission, distribution and sale of electricity to approximately 8.6 million customers within the Southeast and Midwest regions of the U.S. The service territory is approximately 90,000 square miles across six states with a total estimated population of 27 million people. The operations include electricity sold wholesale to municipalities, electric cooperative utilities and other load-serving entities. Duke Energy's Electric Utilities and Infrastructure segment is also a joint owner of certain electric transmission projects.

Duke Energy's Gas Utilities and Infrastructure segment conducts natural gas operations primarily through the regulated public utilities of Piedmont Natural Gas Company, Inc., Duke Energy Ohio, Inc. and Duke Energy Kentucky, Inc. Duke Energy's Gas Utilities and Infrastructure segment serves residential, commercial, industrial and power generation natural gas customers, including customers served by municipalities who are wholesale customers. Duke Energy's Gas Utilities and Infrastructure segment has over 1.7 million total customers, including approximately 1.2 million customers located in North Carolina, South Carolina and Tennessee, and an additional 560,000 customers located within southwestern Ohio and northern Kentucky.

Duke Energy is a Delaware corporation. The address of Duke Energy's principal executive offices is 525 South Tryon Street, Charlotte, North Carolina 28202 and its telephone number is (800) 488-3853. Duke Energy's common stock is listed and trades on the New York Stock Exchange under the symbol "DUK."

The foregoing information about Duke Energy is only a general summary and is not intended to be comprehensive. For additional information about Duke Energy, you should refer to the information described under the caption "Where You Can Find More Information" in this prospectus.

Unless the context otherwise indicates, the terms "Duke Energy," "we," "us" or "our" mean Duke Energy Corporation and its subsidiaries.

#### RISK FACTORS
Investing in our securities involves risks. Before purchasing any Notes, you should carefully consider the risk factors that are incorporated by reference in this prospectus from the section captioned "Risk Factors" in our most recent Annual Report on Form 10-K as they may be updated by our subsequent Quarterly Reports on Form 10-Q, together with all of the other information included in this prospectus and any other information that we have incorporated by reference, including filings made with the Securities and Exchange Commission after the date of this prospectus. Any of these risks, as well as other risks and

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uncertainties, could harm our financial condition, results of operations or cash flows. See below under "Duke Energy PremierNotes" for risks specifically relating to investment in the Notes.

#### USE OF PROCEEDS
We will use the net proceeds from the sale of the Notes for general corporate purposes, which may include repayment of debt, capital expenditures, investments in our regulated utility subsidiaries or our unregulated businesses, and working capital.

#### FORWARD-LOOKING STATEMENTS
This prospectus and the information incorporated by reference in this prospectus include forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements are based on our management's beliefs and assumptions and can often by identified by terms and phrases that include "anticipate," "believe," "intend," "estimate," "expect," "continue," "should," "could," "may," "plan," "project," "predict," "will," "potential," "forecast," "target," "guidance," "outlook," or other similar terminology. Various factors may cause actual results to be materially different than the suggested outcomes within forward-looking statements; accordingly, there is no assurance that such results will be realized.

In light of these risks, uncertainties and assumptions, the events described in the forward-looking statements included or incorporated by reference in this prospectus might not occur or might occur to a different extent or at a different time than described. Forward-looking statements speak only as of the date they are made and we expressly disclaim an obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

#### DUKE ENERGY PREMIERNOTES
Key risk factors to consider before investing include:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • An investment in the Notes does not create a bank account or depositor relationship between you and Duke Energy or The Northern Trust Company, as the agent bank.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • The Notes are not equivalent to a deposit or other bank account and are not subject to the protection of Federal Deposit Insurance Corporation (FDIC) regulation or insurance or any other insurance.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • All of the money you invest will be used to purchase Notes for you. All interest earned on your Notes will be reinvested monthly in additional Notes for your investment. The Notes are not a money market fund, which is typically a diversified fund consisting of short-term debt of many issuers. The Notes are not subject to regulation under the Investment Company Act of 1940, as amended. Consequently, you will not have the benefit of federal laws and regulations designed to help maintain liquidity and a stable share price and set standards for credit quality, diversification and for maturity of individual securities and the overall portfolio.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • The Notes are not subject to the requirements of the Employee Retirement Income Security Act of 1974, as amended.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • The Notes are not a brokerage account with Georgeson Securities Corporation or any other broker-dealer and are not protected by the Securities Investor Protection Corporation under the Securities Investor Protection Act of 1970.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • Duke Energy has not requested, and does not anticipate receiving, a rating for the Notes from any rating agency.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • The interest rate paid on investments in the Notes may not provide a basis for comparison with bank deposits or money market funds, which may use a different method of calculating yield, or other investments which pay a fixed yield for a stated period of time. The interest rate also does not necessarily bear any relation to the risks associated with or changes in our creditworthiness, credit rating or financial condition and may not compensate you for any increase in credit risk of investment in Notes.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • Although you may redeem your investment in the Notes at any time in whole or in part, in the manner explained in this prospectus, you are not able to transfer your investment in the Notes to someone else. The Notes are not listed on any securities exchange, and no secondary market for the Notes currently exists nor will one develop in the future. Consequently, there is no public market valuation of the Notes to assist you in evaluating the Notes or the yield earned.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • The Notes are unsecured debt obligations of Duke Energy Corporation. Only the assets of Duke Energy Corporation are available to pay the principal and interest on the Notes.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • Duke Energy Corporation is a holding company, and we operate our businesses through our subsidiaries. Thus, our ability to meet our obligations under the Notes is dependent on the earnings and cash flows of those subsidiaries and the ability of those subsidiaries to pay dividends or to advance or repay funds to Duke Energy. In addition, the rights that Duke Energy and its creditors would have to participate in the assets of any such subsidiary upon the subsidiary's liquidation or recapitalization will be subject to the prior claims of the subsidiary's creditors. Certain subsidiaries of Duke Energy have incurred substantial amounts of debt in the operation and expansion of their businesses, and Duke Energy anticipates that certain of its subsidiaries will do so in the future.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • Holders of Notes will generally have a junior position to claims of creditors of our subsidiaries, including trade creditors, debt holders, secured creditors, taxing authorities, guarantee holders and any holders of preferred stock. In addition to trade debt, certain of our operating subsidiaries have ongoing corporate debt programs used to finance their business activities. As of June 30, 2025, on a consolidated basis (including securities due within one year), we had approximately $86.4 billion of outstanding debt, of which approximately $57.8 billion was subsidiary debt. Approximately $650 million of such subsidiary debt was guaranteed by Duke Energy as of June 30, 2025.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • The Notes are not guaranteed, endorsed or insured by any of our subsidiaries or any financial institution or government entity. Duke Energy does not maintain reserves for its obligations under the Notes. There is a risk that Duke Energy will be unable to meet interest payments or repay principal on the Notes. You may lose all or part of your investment, including accrued interest, if Duke Energy is unable to pay its debts, enters bankruptcy or seeks protection from its creditors.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • You will not be able to exchange your Notes for any other securities of Duke Energy.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • Other risk factors we list in our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and other reports that are incorporated by reference into this prospectus.

#### General
The following statements about investing in the Notes summarize the Duke Energy PremierNotes Plan, a copy of which is filed as an exhibit to the registration statement of which this prospectus is a part. If this summary differs in any way from the statements in the Plan, you should rely on the Plan. You may request a copy of the Plan by downloading a copy on the website at www.duke-energy.com/premiernotes, calling us at 800-659-DUKE (3853), or writing our Investor Relations Department at P.O. Box 1005, Charlotte, North Carolina 28201-1005, Attention: Duke Energy PremierNotes. All of the money you invest will be used to purchase Notes for you. Your investments in the Notes and interest thereon will be recorded on a register maintained by The Northern Trust Company, the agent bank. The principal amount of your Notes will be equal to all of your investments in the Notes, plus reinvested interest, less redemptions and fees, if any. Accrued interest is available to you for redemption as principal when it is reinvested on the 15th day of each month. Investors will receive monthly statements showing a summary of all transactions occurring during the prior month, including investments, redemptions, interest earned and any fees or charges. Investors may also call toll free at 800-659-DUKE (3853) 8:30 a.m. to 7:00 p.m. Eastern time, Monday through Friday, to obtain current information about their investment in the Notes.

#### Eligible Investors
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • To be eligible to invest in the Notes, you must be:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • a citizen of the United States, or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • corporation or, except as provided in applicable United States Treasury regulations, a partnership, incorporated or established in or under the laws of any of the United States, or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • a trust or estate that is treated as a United States person under Section 7701 of the Internal Revenue Code, as amended.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • You must provide a valid Social Security number or U.S. federal tax identification number.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • You may invest individually or jointly with another eligible person.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • You may invest by naming yourself as custodian for your minor children under the Uniform Transfers to Minors Act of the state in which you reside or under any other applicable law.

#### Interest Rate
The Notes will bear interest at a floating rate per annum to be determined at the direction of the Duke Energy PremierNotes Committee on a weekly basis to be effective on Monday of the week following such determination. Rates may vary by an investor's principal amount of Notes or other factors as determined at the direction of the Duke Energy PremierNotes Committee as provided for in the Duke Energy PremierNotes Plan.

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The interest rate we pay on the Notes for any particular period does not indicate or represent the rates we will pay in the future. The interest rate paid on investments in the Notes may not provide a basis for comparison with bank deposits or money market funds, which may use a different method of calculating yield or other investments which pay a fixed yield for a stated period of time. The interest rate does not necessarily bear any relation to the risks associated with or changes in our creditworthiness, credit rating or financial condition. Interest on the Notes will accrue daily and will be compounded daily, based on a 365/366-day year. Accrued interest will be automatically reinvested in the Notes on the 15th day of each month.

For information on the current interest rate being paid on the Notes, call toll free 800-659-DUKE (3853) or access the Duke Energy PremierNotes website at www.duke-energy.com/premiernotes. None of the information contained at any time on this website is incorporated by reference into this document.

#### How to Make an Investment
You may invest in the Notes by submitting a completed application, along with your initial investment as described below. You may receive a blank application form at any time, without charge, by:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • accessing our prospectus and application through our website at www.duke-energy.com/premiernotes; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • calling 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday and requesting an enrollment kit.

All investors, other than Duke Energy employees and retirees, must make their initial investment in the Notes by the Check Investment option described in the Primary Investment Options section below. If you are a Duke Energy employee, you may make an initial investment in the Notes by the Duke Energy Employee Investment option (described below in the Other Investment Options section) or by the Check Investment option. If you are a Duke Energy retiree, you may make an initial investment in the Notes by the Duke Energy Retiree Investment option (described below in the Other Investment Options section) or by the Check Investment option.

The minimum initial investment is $1,000 for all investors, other than Duke Energy employees or retirees who elect to begin their investment through the Duke Energy Employee Investment option or the Duke Energy Retiree Investment option. If you are a Duke Energy employee or retiree investing through the Duke Energy Employee or Duke Energy Retiree Investment option, then the initial investment may be no less than $100 each month until the minimum required balance of $1,000 is attained.

All investors may make additional investments by any of the investment options described in "Primary Investment Options" below. To avoid low-balance fees, you must maintain a minimum $1,000 balance in the Notes. We may redeem Notes held by any Investor whose investment falls below $1,000. See "Description of the Notes" for more information on this optional redemption. Duke Energy may institute a total maximum outstanding investment for any one investor. As of the date of this prospectus, Duke Energy has established a total maximum outstanding investment for any one investor of $10,000,000 at any time and may, in its sole discretion and at any time, change such total maximum outstanding investment. See "Maximum Total Investment" for more information on investment limits.

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All investments must be made in U.S. dollars. You may contact us as follows to obtain further information on how to invest or make changes to your current investment in the Notes:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • online at www.duke-energy.com/premiernotes; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • by telephone at 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • by mail at Duke Energy PremierNotes, P.O. Box 75708, Chicago, Illinois 60675-5708.

To help fight the funding of terrorism and money-laundering activities, the U.S. government has passed the USA PATRIOT ACT, which requires banks, including our processing agent bank, to obtain, verify, record and, in certain circumstances, report information that identifies persons who engage in certain transactions with or through a bank. This means that, in order for you to invest in the Notes, you must provide to us the name, residential or street address (no P.O. boxes), date of birth and Social Security number or other tax identification number of ALL PERSONS listed on the investment.

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#### Primary Investment Options

#### Anyone who invests in the Notes may use the following investment options.

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| | | |
|:---|:---|:---|
| **INVESTMENT OPTION**  | **PROCEDURES**  | **DATE INVESTMENT CREDITED**  |
| **CHECK INVESTMENT (PERSONAL AND CORPORATE CHECKS)** |  |  |
| The Check Investment option permits you to make investments in Notes by submitting a personal or corporate check. <br> This investment option is the only option for your initial investment in the Notes if you are not a Duke Energy employee or retiree. <br> Your initial investment may be in any amount of $1,000 or more. Additional investments may be in any amount of $50 or more.  | Your completed application should be mailed to Duke Energy PremierNotes, P.O. Box 75708, Chicago, Illinois 60675-5708 and accompanied by a check in an amount of $1,000 or more. <br> Additional investments in an amount of $50 or more must be accompanied by the investment slip provided with the investment statement, provided with investment confirmation notices, or included with the supply of redemption checks (if requested). Additional investments should be mailed to Duke Energy PremierNotes, P.O. Box 75974, Chicago, Illinois 60675-5974. <br> All checks should be made payable to Duke Energy PremierNotes in U.S. dollars and drawn on a U.S. bank. Only personal or corporate checks will be accepted for your initial investment. Starter checks, bank checks, credit card checks, cashier checks, travelers checks, money orders and third-party checks will not be accepted for your initial investment.  | Investments by check will be credited and interest will begin to accrue on the first business day after the agent bank receives a check in proper form if the check is received prior to 9:00 a.m. Eastern time and on the second business day following receipt if the check is received after 9:00 a.m. Eastern time. Checks are accepted subject to collection at full face value in U.S. funds. <br> Investments made by check will be available for redemption by the investor after five business days from the date the check is credited to your investment or such shorter time as may be determined from time to time at the direction of the Duke Energy PremierNotes Committee as permitted under the Duke Energy PremierNotes Plan.  |

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| | | |
|:---|:---|:---|
| **INVESTMENT OPTION**  | **PROCEDURES**  | **DATE INVESTMENT CREDITED**  |
| **AUTOMATIC INVESTMENT** |  |  |
| This investment option permits you to make additional investments in the Notes by automatic monthly electronic investment. Under this alternative, the agent bank will draw funds from your pre-authorized bank account up to two times per month on regular dates designated by you, by an automated clearing house (ACH) transfer for the prescribed amount and will invest the proceeds in the Notes. <br> Investments may be made in any amount of $50 or more.  | To set up the Automatic Investment option for a new investment you must verify your ownership of the pre-authorized bank account by completing the appropriate sections of the application form; or for an existing investment, you must complete the Change form. The appropriate form must be mailed to Duke Energy PremierNotes, P.O Box 75708, Chicago, Illinois 60675-5708, which includes providing the agent bank with a voided blank check. <br> You may make changes to the Automatic Investment option of an existing PremierNotes investment at any time by completing the Change form, submitted with the signature of each registered owner (including joint owners) of the Notes. A Medallion Signature Guarantee stamp may be required. <br> You may terminate investments by Automatic Investment of an existing PremierNotes investment at any time by providing notice in writing to the agent bank or by calling the agent bank toll free at 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday. <br> Notices to change or terminate investments by Automatic Investment will be effective as soon as practicable after they are received by the agent bank.  | Electronic drafts will be presented for payment on the date you determine on your application form or Change form. Investments will be credited and interest will begin to accrue on the first business day following posting of such draft by the agent bank. All such investments are accepted subject to collection at full face value in U.S. funds. Investments made through the Automatic Investment option will be available for redemption by the investor after five business days from the day the investment is posted. |

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| | | |
|:---|:---|:---|
| **INVESTMENT OPTION**  | **PROCEDURES**  | **DATE INVESTMENT CREDITED**  |
| **DIRECTED INVESTMENT** |  |  |
| This investment option permits you to make additional discretionary electronic investments in the Notes. Under this alternative, the agent bank will, following your granted permission, draw funds on a non-recurring basis from your pre-authorized bank account by an ACH transfer for the prescribed amount and will invest the proceeds in the Notes. <br> Investments may be made in any amount of $50 or more.  | To set up the Directed Investment option for a new investment you must verify your ownership of the pre-authorized bank account by completing the appropriate sections of the application form; or for an existing investment, you may utilize the self-service feature within online access or you may complete the Change form. The appropriate form, which includes providing the agent bank with a voided blank check, must be mailed to Duke Energy PremierNotes, P.O. Box 75708, Chicago, Illinois 60675-5708. | Investments will be credited and interest will begin to accrue on the first business day following posting of such draft by the agent bank. All such investments are accepted subject to collection at full face value in U.S. funds. Investments made through the Directed Investment option will be available for redemption by the investor after five business days from the day the investment is posted. |
|  | You may make changes to the Directed Investment option of an existing PremierNotes investment at any time by using the self-service feature within online access or by completing the Change form, submitted with the signature of each registered owner (including joint owners) of the Notes. A Medallion Signature Guarantee stamp may be required. <br> You may terminate the Directed Investment option for an existing PremierNotes investment at any time by using the self-service feature within online access or by providing notice in writing to the agent bank or by calling the agent bank toll free at 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday. If you are enrolled in the  |  |

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| | | |
|:---|:---|:---|
| **INVESTMENT OPTION**  | **PROCEDURES**  | **DATE INVESTMENT CREDITED**  |
|  | online investment management system, you can use the self-service feature to establish and maintain bank models and request ACH investments. For additional information and to enroll for these online options, visit our website at www.duke-energy.com/premiernotes or call us at 800-659-DUKE (3853). <br> Notices to change investment information will be effective as soon as practicable after they are received by the agent bank.  |  |
| **WIRE TRANSFER INVESTMENT** |  |  |
| This investment option permits you to make additional investments in Notes by wire transfer. <br> Any investment made by wire transfer must be $1,000 or more.  | You may invest by Wire Transfer Investment by calling the agent bank at 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday to advise them of your intent to make an investment by wire transfer, at which time the agent bank will provide you transfer instructions. <br> Wire transfer investments will only be accepted from banks domiciled in the United States and paid in U.S. dollars.  | Investments made by Federal Funds wired to the agent bank will be credited as of, and interest will begin to accrue, no later than the next business day following receipt of funds by the agent bank, except that if wired funds are received by 2:00 p.m. Eastern time the funds will be credited to the investment and begin accruing interest the same day. Investments made by wire transfer will be available for redemption by the investor promptly upon being credited as described above. Neither the agent bank, nor we, will be responsible for delays in the funds wiring system. |

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| | | |
|:---|:---|:---|
| **INVESTMENT OPTION**  | **PROCEDURES**  | **DATE INVESTMENT CREDITED**  |
| **AUTOMATIC SOCIAL SECURITY INVESTMENT** |  |  |
| This investment option allows you to make additional investments of part or all of your Social Security payment. | Contact your local Social Security office for the required form. Complete the form and return it to the Social Security office for processing. You may terminate the agent bank's authority to receive your Social Security payments at any time by providing notice in writing to the Social Security office. | Automatic Social Security Investments will be credited, and interest will begin to accrue according to the provisions for Automatic Investments, above. Investments made through the Automatic Social Security Investments option will be available for redemption by the investor on the first business day following the date the investment is credited. |

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#### Other Investment Options
 **Only current Duke Energy employees or retirees may use the following investment options. These investment options may be used to make the initial investment in the Notes, as well as additional investments.** 

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| | | |
|:---|:---|:---|
| **INVESTMENT OPTION**  | **PROCEDURES**  | **DATE INVESTMENT <br> CREDITED**  |
| **DUKE ENERGY EMPLOYEE INVESTMENT** |  |  |
| &nbsp;&nbsp;&nbsp; You may use this investment option if you are a current employee of Duke Energy Corporation or one of its U.S. subsidiaries, to the extent you are currently paid through a Duke Energy payroll system. <br> If you invest through Duke Energy Employee Investment, you may invest through only one PremierNotes investment number. The minimum initial and monthly investment is $100 each month until the minimum required balance of $1,000 is attained. Thereafter, the $1,000 minimum balance must be maintained and additional investments may be in any amount of $50 or more. <br> Your initial and subsequent investments may be made in Notes in one of two ways: <br> • through a Duke Energy payroll directed investment from your Duke Energy paycheck or <br>• through automatic monthly electronic investments using the Automatic Investment option described above. <br>| Your completed application should specify Duke Energy Employee Investment option and your preferred investment method. <br> **For those choosing payroll directed investment, following receipt of your application, you will receive further instructions regarding the setup of your Duke Energy Employee Investment through the Employee Portal.** <br> Employees choosing to make automatic monthly electronic investments should complete the Automatic Investment option portion of the application, and return the application to the agent bank together with a voided check as described in the application. <br> Payroll directed investments into an existing PremierNotes investment may be changed or terminated at any time through the Employee Portal. <br> Automatic monthly electronic investments may be changed at any time by submitting or completing a Change form, with the signature of each registered owner (including joint owners) of the Notes. A Medallion Signature  | Investments made by the Duke Energy Employee Investment option will be credited as of, and interest will begin to accrue on, the next business day following receipt of the funds by the agent bank. Investments made through the Duke Energy Employee Investment option will be available for redemption by the investor after five business days from the day the investment is posted. |

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| | | |
|:---|:---|:---|
| **INVESTMENT OPTION**  | **PROCEDURES**  | **DATE INVESTMENT <br> CREDITED**  |
|  | Guarantee stamp may be required. Employees who selected this option may terminate the Duke Energy Employee Investment option for an existing PremierNotes investment at any time by providing notice in writing to the agent bank or by calling the agent bank toll free at 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday. |  |
| **DUKE ENERGY RETIREE INVESTMENT** |  |  |
| You may use this investment option if you are a former employee of Duke Energy Corporation or any of its U.S. subsidiaries, to the extent you are eligible to receive company provided benefits. <br> The Duke Energy Retiree Investment option allows retirees of Duke Energy to make automatic monthly electronic investments using the Automatic Investment option described above, but without the requirement that the retiree already have a minimum $1,000 investment in the Notes. The minimum initial and monthly investment for retirees is $100 each month, or $50 twice per month, until the minimum required balance of $1,000 is attained. Thereafter, the $1,000 minimum balance must be maintained and  | Your completed application should specify Duke Energy Retiree Investment. You will also need to complete the Automatic Investment option portion of the application, and return the application to the agent bank together with a voided check as described in the application. <br> The Duke Energy Retiree Investment option of an existing PremierNotes investment may be changed at any time by submitting a completed Change form, with the signature of each registered owner (including joint owners) of the Notes. A Medallion Signature Guarantee stamp may be required. <br> You may terminate investments by the Duke Energy Retiree Investment option of an existing PremierNotes investment at any time by providing notice in writing to the agent bank or by calling the  | Investments by the Duke Energy Retiree Investment option will be credited as of and interest will begin to accrue on the next business day following receipt of the funds. Investments made through the Duke Energy Retiree Investment option will be available for redemption by the investor after five business days from the day the investment is posted. |

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| | | |
|:---|:---|:---|
| **INVESTMENT OPTION**  | **PROCEDURES**  | **DATE INVESTMENT <br> CREDITED**  |
| additional investments may be in any amount of $50 or more. | agent bank toll free at 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday. |  |

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#### How to Redeem
Generally, you may redeem all or any part of your Notes without charges or penalties as more fully described below. However, you may redeem your entire investment in the Notes only by use of the Written or Bank Check Redemption options as described in this prospectus. In such event, the principal amount of your Notes, together with accrued and unpaid interest, will be redeemed and the proceeds distributed in accordance with the procedures set forth below under Written or Bank Check Redemption. Requests for redemption should be directed to Duke Energy PremierNotes, P.O. Box 75708, Chicago, Illinois 60675-5708 or by calling 800-659-DUKE (3853).

If the amount to be redeemed represents:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • an investment made by the Check Investment option, the redemption request will not be honored until after five business days from the date the check is credited to your investment or such shorter time as may be determined from time to time at the direction of the Duke Energy PremierNotes Committee as permitted under the Duke Energy PremierNotes Plan;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • an investment made by the Automatic Investment or Directed Investment option from a bank account, the redemption request will not be honored until after five business days from the posting of such investment by the agent bank;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • an investment made by the Wire Transfer Investment option, the redemption request will not be honored until the next business day following receipt by the agent bank of wired funds received after 2:00 p.m. Eastern time;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • an investment made by the Automatic Social Security Investment option, the redemption request will not be honored until the first business day following the posting by the agent bank of such investment, which shall be made by ACH;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • an investment made by the Duke Energy Employee Investment option or by the Duke Energy Retiree Investment option, no redemption request will be honored until after five business days from the posting of such investment by the agent bank, provided that no redemption request will be honored other than a request to redeem the entire outstanding investment in the Notes, unless the outstanding investment amount after such redemption would be $1,000 or more.

If you need more immediate access to your funds, you may wish to avoid delays by choosing the Wire Transfer Redemption option on your application form.

If you are redeeming your entire investment in the Notes you will receive all accrued and unpaid interest less applicable fees.

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A check will be sent to only the registered owners of the Notes at the registered address. You may contact us as follows to obtain further information on redeeming investments in the Notes:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • online at www.duke-energy.com/premiernotes; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • by telephone at 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday.

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| | | |
|:---|:---|:---|
| **REDEMPTION OPTION**  | **PROCEDURES**  | **DATE OF <br> REDEMPTION/ DATE <br> INTEREST CEASES <br> TO ACCRUE**  |
| **CHECK REDEMPTION** |  |  |
| You may request Duke Energy PremierNotes redemption checks free of charge by calling 800-659-DUKE (3853). Additional supplies of Duke Energy PremierNotes redemption checks are also free of charge. For your protection, we will accept for redemption only PremierNotes redemption checks. You may make PremierNotes redemption checks payable to the order of anyone in the amount of $250 or more. <br> PremierNotes redemption checks payable for less than $250 will be honored and we will charge a fee that will be debited directly from your investment balance in the Notes. The fee schedule can be found in the "Fees" section of this prospectus. The payee of a PremierNotes redemption check may cash or deposit the PremierNotes redemption check like any personal check drawn on a bank. If the amount of a PremierNotes redemption check is greater than your investment  | You may order additional PremierNotes redemption checks by using the reorder form in your current checkbook, by calling 800-659-DUKE (3853), or through your account online. We will send additional redemption checks only to the registered owner(s) of the Notes and only to the registered address. The Check Redemption option does not create a checking or other bank account or a depositor or banking relationship with the agent bank or us. | Redemption will be made on the date the PremierNotes redemption check is presented to the agent bank for payment. The amount of the Note to be redeemed will continue to accrue interest to, but not including, the day the PremierNotes redemption check is presented for payment. |

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|:---|:---|:---|
| **REDEMPTION OPTION**  | **PROCEDURES**  | **DATE OF <br> REDEMPTION/ DATE <br> INTEREST CEASES <br> TO ACCRUE**  |
| balance, the PremierNotes redemption check will not be honored and will be returned to the presenter by the agent bank. In addition to having the PremierNotes redemption check returned, we will charge a fee that will be debited directly from your investment balance in the Notes. See the "Fees" section of this prospectus for a discussion of certain fees in connection with the Check Redemption option. |  |  |
| **WRITTEN REDEMPTION** |  |  |
| You may redeem investments in the Notes at any time by requesting redemption in a letter sent by first-class mail to: Duke Energy PremierNotes, P.O. Box 75708, Chicago, Illinois 60675-5708. If you own the Notes jointly with another person, all owners must sign the redemption request. Redemptions will be paid to you by check, in the amount of $250 or more, or the investment balance of your Notes, whichever is less. | **Written Redemption is automatically available to you and does not require any selection on the application.** <br> We will send the redemption payments only to the registered owner(s) of the Notes at the registered address.  | The agent bank will mail you a check representing the redemption proceeds no later than the next business day following receipt of the redemption request in proper form, and interest will accrue to, but not including, such next business day. |
| **BANK CHECK REDEMPTION**  |  |  |
| By use of the Bank Check Redemption option, you authorize the agent bank to act on telephone instructions to have redemption proceeds paid by a | **Bank Check Redemption is automatically available to you and does not require any selection on the application.** <br> Requests for Bank Check  | A bank check representing the redemption proceeds will be mailed to the registered address, by the end of the next business day following receipt of the |

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|:---|:---|:---|
| **REDEMPTION OPTION**  | **PROCEDURES**  | **DATE OF <br> REDEMPTION/ DATE <br> INTEREST CEASES <br> TO ACCRUE**  |
| check payable to the registered owner(s) and sent to the registered address on the investment. The agent bank's records of the telephonic instructions are binding. **Neither the agent bank nor we will be responsible for the authenticity of telephonic instructions.** <br> Redemptions will be paid to you by check, in the amount of $250 or more, or the investment balance of your Notes, whichever is less.  | Redemption may be made by calling 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday. Verification of information including, but not limited to, the investment number, additional investment information and the name of the registered owner(s) submitting the Bank Check Redemption request must be provided at the time of the request. We will send the redemption payments only to the registered owner(s) of the Notes at the registered address. | redemption request and interest will accrue to, but not including, the day of your request. |
| **WIRE TRANSFER REDEMPTION** |  |  |
| By use of the Wire Transfer Redemption option, you authorize the agent bank to act on instructions to have redemption proceeds paid by wire transfer to a pre-authorized bank account. The agent bank's records of the telephonic instructions are binding. **Neither the agent bank nor we will be responsible for the authenticity of instructions.** <br> A service fee will be debited directly from your investment balance in the Notes for any redemption proceeds paid by wire transfer. The fee schedule can be found in the "Fees" section of this prospectus.  | To set up the Wire Transfer Redemption option for a new investment, you must verify your ownership of the pre-authorized bank account by completing the appropriate sections of the application form; or for an existing investment, you may complete the Change form or you may utilize the self-service feature within online access. The appropriate form, along with a voided blank check, must be mailed to Duke Energy PremierNotes, P.O. Box 75708, Chicago, Illinois 60675-5708. <br> You may make redemptions by Wire Transfer Redemption via  | The day and time at which your wire transfer will be received at your bank will vary based on the time of day the complete Wire Transfer Redemption is received by the agent bank. Interest will accrue to, but not including, the day your request is received by the agent bank. |

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|:---|:---|:---|
| **REDEMPTION OPTION**  | **PROCEDURES**  | **DATE OF <br> REDEMPTION/ DATE <br> INTEREST CEASES <br> TO ACCRUE**  |
| The minimum amount that may be redeemed by Wire Transfer Redemption is $1,000. | online access or by calling the agent bank toll free at 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday. |  |
|  | Wire Transfer Redemption requests must be made by the owner(s) of the Notes investment and proceeds will only be sent to the pre-authorized bank account. Verification of information including, but not limited to, the investment number, additional investment information and the name of the registered owner(s) submitting the Wire Transfer Redemption request must be provided at the time of the request. |  |
|  | The agent bank will transmit Wire Transfer Redemption proceeds only to the U.S. bank account pre-authorized by you on the application. |  |
|  | You may make changes to the Wire Transfer Redemption option of an existing PremierNotes investment at any time by using the self-service feature within online access or by submitting a completed Change form, with the signature of each registered owner (including joint owners) of the Notes. A Medallion Signature Guarantee stamp may be required. |  |

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|:---|:---|:---|
| **REDEMPTION OPTION**  | **PROCEDURES**  | **DATE OF <br> REDEMPTION/ DATE <br> INTEREST CEASES <br> TO ACCRUE**  |
|  | You may terminate the Wire Transfer Redemption option for an existing PremierNotes investment at any time by using the self-service feature within online access or by providing notice in writing to the agent bank at Duke Energy PremierNotes, P.O. Box 75708, Chicago, Illinois 60675-5708. <br> If you are enrolled in the online investment management system, you can use the self-service feature to establish and maintain bank models and request Wire Transfer Redemptions. For additional information and to enroll for these online options, visit our website at www.duke-energy.com/premiernotes or call us at 800-689-DUKE (3853).  |  |
|  | Neither the agent bank, nor we, will be responsible for delays in the fund wiring system. If the pre-authorized bank is not a member of the Federal Reserve System, there may be a delay in crediting your funds to the pre-authorized bank account. |  |
| **DIRECTED REDEMPTION** |  |  |
| By use of the Directed Redemption option, you authorize the agent bank to act on instructions to have Notes redeemed on a non-recurring | To set up the Directed Redemption option for a new investment you must verify your ownership of the pre-authorized bank account by completing the | Directed Redemptions will be processed on the first business day following the receipt of the complete Directed Redemption request by the agent bank for |

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|:---|:---|:---|
| **REDEMPTION OPTION**  | **PROCEDURES**  | **DATE OF <br> REDEMPTION/ DATE <br> INTEREST CEASES <br> TO ACCRUE**  |
| basis with redemption proceeds paid by electronic ACH transfer to a pre-authorized bank account. The agent bank's records of the telephonic instructions are binding. **Neither the agent bank nor we will be responsible for the authenticity of instructions.** <br> Directed Redemptions for less than $250 will not be processed.  | appropriate sections of the application form; or for an existing investment, you may utilize the self-service feature within online access or you may complete the Change form. The appropriate form, along with a voided blank check must be mailed to Duke Energy PremierNotes, P.O. Box 75708, Chicago, Illinois 60675-5708. You may make redemptions by Directed Redemption via online access. | payment. The amount of the Note to be redeemed will continue to accrue interest to, but not including, the day your request is processed by the agent bank. |
|  | Directed Redemption requests must be made by the owner(s) of the Notes investment and proceeds will only be sent to the pre-authorized bank account. Verification of information including, but not limited to, the investment number, additional investment information and the name of the registered owner(s) submitting the Directed Redemption request must be provided at the time of the request. |  |
|  | The agent bank will transmit Directed Redemption proceeds only to the U.S. bank account pre-authorized by you on the application. |  |
|  | You may make changes to the Directed Redemption option of an existing PremierNotes |  |

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|:---|:---|:---|
| **REDEMPTION OPTION**  | **PROCEDURES**  | **DATE OF <br> REDEMPTION/ DATE <br> INTEREST CEASES <br> TO ACCRUE**  |
|  | investment at any time by using the self-service feature within online access or by submitting a completed Change form, with the signature of each registered owner (including joint owners) of the Notes. A Medallion Signature Guarantee stamp may be required. <br> You may terminate the Directed Redemption option for an existing PremierNotes investment at any time by using the self-service feature within online access or by providing notice in writing to the agent bank at Duke Energy PremierNotes, P.O. Box 75708, Chicago, Illinois 60675-5708. <br> If you are enrolled in the online investment management system, you can use the self-service feature to establish and maintain bank models and request ACH Redemptions. For additional information and to enroll for these online options, visit our website at www.duke-energy.com/premiernotes or call us at 800-689-DUKE (3853).<br> Neither the agent bank, nor we, will be responsible for delays in the ACH transfer system.  |  |

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#### Optional Redemption by Duke Energy
As provided in the Duke Energy PremierNotes Plan, we have the right to redeem at any time the Notes of an investor if the investment balance is below the minimum amount or to the extent the investment balance

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exceeds the maximum amount as determined by the Duke Energy PremierNotes Committee. In such event, you will be notified if your Notes will be redeemed and you will be permitted 30 days within which to make such investments or make such redemptions, as the case may be, to restore the investment balance within the minimum and maximum amounts. In addition, we may also redeem, at any time at our option, the Notes of any investor who is not or is no longer eligible to invest in the Notes, who has abused or misused the investment or redemption provisions applicable to the Notes or whose investments are otherwise inconsistent with the objectives of the Duke Energy PremierNotes Plan, in each case as we determine in our sole judgment and discretion. In the event that we determine to redeem a particular investor's Notes for any of the reasons specified in the preceding sentence, we will notify the investor of our intention to redeem in full the Notes on the third business day following the date of our notice. Further, we may redeem the entire amount of, or any portion of, all of the outstanding Notes. Any such partial redemption of outstanding Notes will be effected by lot or pro rata or by any other method that is deemed fair and appropriate by the agent bank. We generally will give you 30-days' prior written notice if the Notes are to be redeemed in whole or in part. In each of the redemption transactions described above, a redemption check will be sent to the investor in an amount equal to the principal amount of the redeemed Notes, including accrued and unpaid interest and less any applicable fees.

#### Fees
There are no maintenance fees with respect to your investment in the Notes, nor are there charges for your redemption checks (both initial and additional) or for effecting any Check Redemptions. You may, however, be charged a fee by your commercial bank or financial institution if you make an investment or receive a redemption amount by wire transfer. You may also incur a charge in obtaining any applicable signature guarantee.

Subject to revision at the discretion of the Duke Energy PremierNotes Committee, the following fee schedule applies:

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|:---|:---|
| Insufficient funds:  | $20 |
| Stop payment requests:  | $15 |
| Wire redemptions:  | $15 |
| Redemptions for less than $250:  | $10 |
| Investment balance less than $1,000:  | $10/month |

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As incurred, fees will be promptly debited directly from your investment balance as a partial redemption of your Notes.

#### Investor Statements
The agent bank will send a monthly statement to you, showing a summary of all the transactions made in the Notes during the previous month, including the beginning investment balance, all investments and redemptions, all interest earned, as well as any relevant fees or charges. A copy of the Duke Energy PremierNotes redemption checks on which payment has been made will be included in the monthly

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statements. This procedure is subject to change at the direction of the Duke Energy PremierNotes Committee in its discretion. You can obtain current information about the Notes by calling us toll free at 800-659-DUKE (3853) from 8:30 a.m. to 7:00 p.m. Eastern time Monday through Friday, or by visiting our website at www.duke-energy.com/premiernotes.

You may also enroll to view your investment activity and other correspondence through the online investment management system. Many of the service options described in this prospectus are also available via this online tool. For additional information and to enroll for these online options, visit our website at www.duke-energy.com/premiernotes or call us at 800-659-DUKE (3853).

We will only furnish information to you by telephone if you have specified the name, address, Notes investment number, and additional investment information of the registered owner of the Notes.

#### Taxes
The following is a summary of the U.S. Federal income tax consequences to you if you invest in the Notes. The discussion addresses only the income tax consequences to you if you are an individual and are a citizen of the United States for Federal income tax purposes. You should consult your own tax adviser concerning the application of United States Federal income tax laws, as well as the laws of any state, local or foreign taxing jurisdictions, to your situation.

The Notes are not qualified under Section 401(a) of the Internal Revenue Code, as amended. All interest credited to your Notes in any taxable year is reportable by you as taxable income for Federal income tax purposes. Early in each year the agent bank will provide to you the full amount reportable as taxable income for the previous year. The agent bank also will file tax information returns as required by law. Backup withholding may apply to you if you fail to comply with applicable tax identification requirements. Interest credited to the Notes also may be subject to state and local income taxes.

#### Duke Energy PremierNotes Committee
The Duke Energy PremierNotes Committee has the full power and authority to, among other things:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • amend the Duke Energy PremierNotes Plan and the Notes offering to the extent described below under "Termination, Suspension or Modification;"

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • interpret the provisions of the Plan;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • adopt rules and regulations in connection with administration of the Plan;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • redeem the Notes in whole or in part at any time;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • redeem any investments in the Notes of an investor who has abused or misused the investment or redemption provisions applicable to the Notes, whose investments are otherwise inconsistent with the objectives of the Duke Energy PremierNotes Plan or who is not eligible to invest in the Notes, in each case as determined by the Duke Energy PremierNotes Committee in its sole judgment and discretion; and

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • make certain determinations in accordance with the Duke Energy PremierNotes Plan, including setting the rates of interest to be paid on the Notes.

The Duke Energy PremierNotes Committee (or, the "Committee") shall consist of at least three persons designated from time to time by Duke Energy. The Committee is currently comprised of the Chief Financial Officer, the Treasurer, an Assistant Treasurer and other members of the Finance and Legal groups of Duke Energy. Our Chief Financial Officer or Treasurer may from time to time remove or appoint other officers or employees of Duke Energy to serve on the Committee and may designate an alternate for each member, who shall have full power to act in the absence or inability to act of such member. As provided in the Duke Energy PremierNotes Plan, the Committee has delegated its authority to determine the interest rate on the Notes to the Treasurer of Duke Energy. The address of each member of the Duke Energy PremierNotes Committee is 525 South Tryon Street, Charlotte, North Carolina 28202. The members of the Duke Energy PremierNotes Committee receive no additional compensation for their Committee services.

The members of the Committee may from time to time have potential conflicts of interest from the point of view of investors in the Notes. All members of the Committee to date have been, and are expected in the future to be, employees of Duke Energy or one of its subsidiaries. All of the money you invest will be invested in the Notes, which are securities of Duke Energy. The members of the Committee have a duty to act in Duke Energy's best interest, and consequently may make decisions that investors in the Notes do not believe to be in their best interest. In addition, employees of Duke Energy and its subsidiaries, including members of the Committee, may from time to time invest in or redeem the Notes.

Under the Plan, no member of the Committee or a director, officer or employee of Duke Energy or any of its subsidiaries will be liable for any action or failure to act under or in connection with the Plan, except for his or her own bad faith. Duke Energy will indemnify and hold any such person harmless from all loss or expense that may be imposed upon or reasonably incurred by him or her in connection with or resulting from any claim, or proceeding, except a judgment in favor of Duke Energy based upon a finding of his or her bad faith.

#### AGENT BANK
The Northern Trust Company is the agent bank for the Notes. Northern Trust's services include:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • maintenance of records of investments in, and redemptions of, the Notes by investors;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • receipt of investment and redemption requests;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • receipt of funds being invested in Notes and disbursement of funds upon redemption of Notes;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • sending notices of redemption upon a redemption at the option of Duke Energy;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • transaction processing and accounting;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • preparation of investment statements and other correspondence to investors;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • investor servicing;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • maintenance of records of the investment balance in the Notes, accrual of interest, and payment and reinvestment of interest; and

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • tax reporting and filing with the proper authorities.

We pay the agent bank an administrative fee for these services.

#### DESCRIPTION OF THE NOTES
The Notes are governed by an indenture, dated as of April 4, 2011, between us and The Bank of New York Mellon Trust Company, N.A., which acts as trustee. The trustee has two main roles. First, the trustee can enforce your rights against us if we default. There are some limitations on the extent to which the trustee acts on your behalf, described below under "Events of Default and Notices." Second, the trustee may perform certain administrative duties for us.

The indenture and its associated documents contain the full legal text of the matters described in this section. The indenture is an exhibit to our registration statement of which this prospectus is a part. See "Where You Can Find More Information" for information on how to obtain a copy of the indenture.

This section summarizes the material terms of the Notes. Because this section is a summary, it does not describe every aspect of the Notes and is subject to and qualified in its entirety by reference to all provisions of the indenture, including definitions of certain terms used in the indenture. We describe the meaning for only the more important of those terms. Whenever we refer to defined terms of the indenture in this prospectus, such defined terms are incorporated by reference here.

#### General
The Notes will be issuable in any amount and will mature upon your demand. The Notes will be identical except for their issue date and principal amount. We may reject any offer to purchase Notes in whole or in part. All investments in the Notes are investments in our unsecured debt obligations and are not obligations of or guaranteed by our subsidiaries, the agent bank, the trustee or any other company. Duke Energy does not maintain reserves for its obligations under the Notes and the Notes are not subject to any sinking fund. The Notes are redeemable at your option in the manner described in this prospectus.

Following an initial investment, investors may make additional investments and redemptions from time to time as described in this prospectus. As a result, the outstanding principal amount of the Notes will increase and decrease from time to time. For purposes of determining the aggregate amount of registered but unissued notes under the registration statement relating to the Notes, each investment is an issuance of Notes, reducing the capacity of registered but unissued Notes by a corresponding amount. The daily amount and rate of redemptions are affected by many factors, including but not limited to the rates we offer on the Notes from time to time, the wide variety of alternative investment options in the market that are available to our investors and seasonal increases in redemptions and investments.

Although investors could seek to redeem a large dollar amount of Notes over a short period of time, we believe that we have sufficient capital resources available to timely fund redemptions of the Notes. Liquidity management is both a daily and long-term component of our treasury management strategy. In the event that we require funds beyond our ability to generate them internally, additional sources of funds are

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available to us. For more information, see the discussion of our capital resources and liquidity in our Form 10-K and 10-Q reports filed with the SEC that are incorporated by reference into this prospectus.

The Notes will rank equally in priority with all of Duke Energy's existing and future unsecured and unsubordinated indebtedness and will rank senior in right of payment to all of Duke Energy's existing and future subordinated debt. At June 30, 2025, Duke Energy had approximately $28.6 billion of outstanding indebtedness, consisting of approximately $26.6 billion of unsecured and unsubordinated indebtedness and $2.0 billion of unsecured junior subordinated indebtedness. Duke Energy is a holding company, and we operate our businesses through our subsidiaries. The Notes are structurally subordinated to the indebtedness and other liabilities of our subsidiaries. This means that in liquidation the assets of our subsidiaries would be applied first to the repayment of indebtedness and other liabilities of our subsidiaries before they would be available to pay the indebtedness and liabilities of Duke Energy, including the Notes. At June 30, 2025, Duke Energy's subsidiaries had approximately $57.8 billion of indebtedness, payment upon approximately $650 million of which was guaranteed by Duke Energy. The indenture does not limit our ability to incur additional debt, including debt incurred by our subsidiaries. The indenture also does not restrict us from acquiring or combining with entities that have outstanding indebtedness, which entities may become subsidiaries of Duke Energy.

The indenture does not limit the principal amount of the Notes or any of our other debt that may be issued.

The Notes will be issued in uncertificated form and you will not receive any certificate or other instrument evidencing our indebtedness. All funds you invest in the Notes, together with interest accrued thereon, and redemptions, if any, will be recorded on a register maintained by the agent bank.

The indenture provides that we, the trustee and the investors waive, to the fullest extent permitted by applicable law, any and all right to trial by jury in any legal proceeding arising out of or relating to the indenture or the Notes.

#### Minimum Investment
Because of the relatively high cost of maintaining small investments, we reserve the right to redeem your investment if the investment balance is less than the minimum required investment balance of $1,000 for three consecutive months. If you are an employee or retiree, the minimum required initial investment is only $100 each month until the minimum required investment balance of $1,000 is attained. Thereafter, the $1,000 minimum investment balance must be maintained. If the minimum investment balance is not attained or maintained, we may redeem the principal amount of your Notes, together with accrued and unpaid interest, and mail the proceeds to your registered address. You will be notified if your Notes will be redeemed and you will be permitted 30 days within which to make additional investments to increase your investment balance to the applicable minimum required investment before your investment is redeemed. The minimum required investment balance is subject to change at the discretion of the Duke Energy PremierNotes Committee without prior notice to investors.

#### Maximum Outstanding Investment
Duke Energy may institute a total maximum outstanding investment for any one investor. As of the date of this prospectus, the Duke Energy PremierNotes Committee has established a total maximum

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outstanding investment for any one investor of $10,000,000. If the amount of your outstanding investment exceeds the maximum for three consecutive months, we may notify you in writing that we intend to redeem the amount of your investment in excess of $10,000,000. You will then have 30 days to redeem the excess portion of your investment. If you do not do so within a 30-day period, we may redeem the amount we have specified and mail a check for the proceeds to the registered holder of the Notes, less any tax withholding, if applicable, and any other fees discussed in this prospectus. Interest on the redeemed amount shall cease to accrue on and after the effective date of the redemption. The total maximum outstanding investment in the Notes for any one investor is subject to change at the discretion of the Duke Energy PremierNotes Committee without prior notice to investors.

#### We May Redeem the Notes at Our Option
We may also elect to redeem the entire amount of, or any portion of, the outstanding Notes. Any such partial redemption of outstanding Notes will be effected by lot or pro rata or by any other method that is deemed fair and appropriate by the agent bank. We generally will give you 30-days' prior written notice if the Notes are to be redeemed in whole or in part. As discussed above, we may also redeem your Notes if your investment balance is below the minimum amount or exceeds the maximum amount as determined by the Duke Energy PremierNotes Committee.

In addition, as provided in the Duke Energy PremierNotes Plan, we may also redeem, at any time at our option, the Notes of any investor who is not or is no longer eligible to invest in the Notes, who has abused or misused the investment or redemption provisions applicable to the Notes or whose investments are otherwise inconsistent with the objectives of the Duke Energy PremierNotes Plan, in each case as we determine in our sole judgment and discretion. In the event that we determine to redeem a particular investor's Notes for any of these reasons, we will notify the investor of our intention to redeem in full the Notes on the third business day following the date of our notice.

In each of the redemption transactions initiated by us, as described above, a redemption check will be sent to the investor in an amount equal to the principal amount of the redeemed Notes, including accrued and unpaid interest and less any applicable fees. Interest on the redeemed amount shall cease to accrue on and after the effective date of redemption.

#### The Trustee
The indenture contains certain limitations on the right of the trustee, as a creditor of ours, to obtain payment of claims in certain cases, or to realize on certain property received in respect of any such claim as security or otherwise. In addition, the trustee may be deemed to have a conflicting interest and may be required to resign as trustee if at the time of a default under the indenture it is a creditor of ours.

The Bank of New York Mellon Trust Company, N.A. is the trustee under the indenture. Duke Energy and certain of its affiliates maintain deposit accounts and banking relationships with The Bank of New York Mellon Trust Company, N.A. or its affiliates. The Bank of New York Mellon Trust Company, N.A. or its affiliates also serve as trustee or agent under other indentures and agreements pursuant to which securities of Duke Energy and of certain of its affiliates are outstanding.

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#### Events of Default and Notices
The following events are defined in the indenture as "events of default" with respect to the Notes:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • failure to pay any or all the principal of or interest on any Note when due, provided that the failure to pay shall not be deemed to be an event of default under various circumstances, such as when the person demanding payment is not legally entitled to it or upon the occurrence of certain administrative errors; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • failure to perform any of our covenants in the indenture, which continues for 60 days after we are given written notice by either the trustee or at least a majority of the holders in principal amount of the Notes outstanding and affected thereby.

If an event of default with respect to the outstanding Notes occurs and is continuing, either the trustee or the holders of at least a majority in principal amount of the outstanding Notes may declare the principal amount of all Notes to be due and payable immediately; provided, however, that under certain circumstances the holders of a majority in aggregate principal amount of outstanding Notes may rescind and annul such declaration and its consequences.

The indenture provides that the trustee, within 90 days after the occurrence of a default with respect to the Notes, shall give to the holders of the Notes notice of all uncured defaults known to it (the term "default" means the events specified above without grace periods), provided that, except in the case of default in the payment of principal of or interest, if any, on any Notes, the trustee shall be protected in withholding the notice if it in good faith determines that the withholding of the notice is in the interest of the holders of Notes.

We will be required to furnish annually to the trustee a statement by certain of our officers to the effect that to their knowledge we are not in default in the fulfillment of any of our obligations under the indenture or, if there has been a default in the fulfillment of any of our obligations, specifying each such default.

The holders of a majority in principal amount of the outstanding Notes will have the right, subject to certain limitations, to direct the time, method and place of conducting any proceeding for any remedy available to the trustee, or exercising any trust or power conferred on the trustee with respect to the Notes, and to waive certain defaults.

The indenture provides that in case an event of default occurs and is continuing, the trustee shall exercise such of its rights and powers under the indenture, and use the same degree of care and skill in their exercise, as a prudent man would exercise or use under the circumstances in the conduct of his own affairs. Subject to such provisions, the trustee will be under no obligation to exercise any of its rights or powers under the indenture at the request or direction of any of the holders of Notes unless they shall have offered to the trustee reasonable security or indemnity against the costs, expenses and liabilities which the trustee might incur in complying with the request or direction.

#### Modification of the Indenture
We and the trustee may modify or amend the indenture, with the consent of the holders of not less than a majority in aggregate principal amount of the outstanding Notes issued under the indenture, provided that no such modification or amendment may, without the consent of each holder of the Notes that are affected:

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • change the character of the Notes from being payable on demand or reduce the principal amount of any Note;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • impair the right to institute a suit for the enforcement of any payment on or with respect to any Note;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • reduce the above-stated percentage of holders of Notes necessary to modify or amend the indenture; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • modify the foregoing requirements or reduce the percentage of outstanding Notes necessary to waive compliance with certain provisions of the indenture or for waiver of certain defaults.

We may also amend the indenture, without the consent of any holders of the Notes, to add covenants or restrictions for your benefit or to make other changes that do not adversely affect the rights of any holder in any material respect.

#### TERMINATION, SUSPENSION OR MODIFICATION
We expect that you will be able to invest in the Notes for the foreseeable future, but we reserve the right at any time to terminate, to suspend or from time to time to modify the Plan and the Notes offering in part, in its entirety or in respect of investors located in one or more states or other jurisdictions or to suspend new investments in the Notes. We reserve the right to modify, suspend or terminate any of the investment options and redemption options described under "Duke Energy PremierNotes—How to Make an Investment," "—Primary Investment Options," "—Other Investment Options" and "—How to Redeem." No termination, modification or suspension shall affect your rights unless the proposed action shall have been communicated to you in sufficient time prior to its effective date to allow you to redeem Notes together with accrued and unpaid interest in accordance with the terms in effect prior to the effective date of such termination, modification or suspension. No such termination or modification of the Plan or suspension or any provision in the Plan may diminish the principal of any Note or unpaid interest on any Note. Any modification that affects the rights or duties of the trustee may be made only with the consent of the trustee.

The indenture shall cease to be of further effect, and the trustee, on our demand and at our cost and expense, shall execute proper instruments acknowledging satisfaction of and discharging the indenture if at any time we shall have terminated the Plan pursuant to its provisions, all of the Notes shall have become due and payable, we shall have deposited or caused to be deposited with the trustee as trust funds the entire amount sufficient to pay all the outstanding Notes, including principal and interest due or to become due to such date of maturity or, if we shall have given notice for the full redemption of all outstanding Notes, the date of redemption, and we shall have paid or caused to be paid all other sums payable by us under the indenture.

#### RIGHTS MAY NOT BE ASSIGNED, TRANSFERRED OR PLEDGED
Except for redemptions, and except for the right to debit amounts credited in error to investment balances, there is no provision in the Plan, in the indenture or in our arrangements with the agent bank under which any person has or may create any lien on amounts credited to your investment balance in the Notes. You may not assign, transfer or pledge rights under the Notes, except upon redemption.

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#### PLAN OF DISTRIBUTION
We have engaged Georgeson Securities Corporation ("GSC") to assist us with the offering of the Notes as an accommodating broker in states where applicable securities laws require such offerings to be made by a registered broker-dealer. GSC is a registered broker-dealer in all fifty U.S. states. GSC is not underwriting the Notes, has no obligation to purchase any Notes and is not obligated to find or qualify purchasers of the Notes. GSC has not prepared a report or opinion constituting recommendations or advice to us in connection with the Notes. In addition, GSC does not make any recommendations as to whether any investor should purchase the Notes. No commissions will be paid to GSC. We will pay GSC an annual administrative fee of $25,000 for its services with respect to the Notes. In certain jurisdictions, we are offering the Notes on a continuing basis directly on our behalf. We may also from time to time designate other agents through whom Notes may be offered. We reserve the right to withdraw, cancel or modify the offer to purchase Notes at any time. We have the sole right to accept offers to purchase Notes and may reject any proposed purchase of Notes in whole or in part.

#### VALIDITY OF NOTES
The validity of the Notes will be passed upon for Duke Energy Corporation by Elizabeth H. Jones, Esq., who is Duke Energy Corporation's Deputy General Counsel and Assistant Corporate Secretary.

#### EXPERTS
The consolidated financial statements incorporated in this prospectus by reference from Duke Energy Corporation's Annual Report on Form 10-K, and the effectiveness of Duke Energy Corporation's internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports, which are incorporated herein by reference. Such consolidated financial statements have been so incorporated in reliance upon the report of such firm given upon their authority as experts in accounting and auditing.

#### WHERE YOU CAN FIND MORE INFORMATION
We are subject to the informational requirements of the Securities Exchange Act of 1934, as amended, and, in accordance therewith, file annual, quarterly and current reports, proxy statements and other information with the Securities and Exchange Commission, or the SEC. Our filings with the SEC, as well as additional information about us, are available to the public through Duke Energy's website at http://www.duke-energy.com and are made available as soon as reasonably practicable after such material is filed with or furnished to the SEC. The information on our website is not a part of this prospectus. Our filings are also available to the public through the SEC website at http://www.sec.gov.

The SEC allows us to "incorporate by reference" into this prospectus the information we file with it, which means that we can disclose important information to you by referring you to those documents. The information incorporated by reference is considered to be a part of this prospectus, and information that we file later with the SEC will automatically update and supersede this information. This prospectus incorporates by reference the documents incorporated in the prospectus at the time the registration statement

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became effective and all later documents filed with the SEC, in all cases as updated and superseded by later filings with the SEC. Duke Energy incorporates by reference the documents listed below and any filings made by Duke Energy with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended, until the offering is completed.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • [Annual Report on Form 10-K for the year ended December 31, 2024](http://www.sec.gov/ix?doc=/Archives/edgar/data/17797/000132616025000072/duk-20241231.htm), including the portions of our [definitive proxy statement filed on Schedule 14A on March 14, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/1326160/000110465925023754/tm2430172-3_def14a.htm) that are incorporated by reference therein;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • Quarterly Reports on Form 10-Q for the quarterly periods ended [March 31, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/17797/000132616025000150/duk-20250331.htm) and [June 30, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/17797/000132616025000168/duk-20250630.htm); and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; • Current Reports on Form 8-K (excluding any information and exhibits furnished under either Item 2.02 or Item 7.01 (or any related exhibit furnished under Item 9.01(d) thereof)) filed on [January 13, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/1326160/000110465925002897/tm253002d1_8k.htm), [February 3, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/81020/000132616025000013/duk-20250129.htm), [March 17, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/17797/000110465925024497/tm259175d1_8k.htm), [May 5, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/1326160/000110465925044364/tm2513990d1_8k.htm), [July 29, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/78460/000110465925071391/tm2521862d1_8k.htm), [August 5, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/37637/000110465925073897/tm2522347d1_8k.htm), [September 11, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/1326160/000141057825002058/tm2524574d4_8k.htm) and [September 12, 2025](http://www.sec.gov/ix?doc=/Archives/edgar/data/1326160/000141057825002261/tm2525830d1_8k.htm).

We and certain of our subsidiaries separately filed the combined Annual Report on Form 10-K and combined Quarterly Reports on Form 10-Q listed above. We do not intend to incorporate by reference into this prospectus the stand alone information relating to our subsidiaries, and we make no representation as to such stand alone information relating to any of our subsidiaries contained in such combined reports.

We will provide without charge a copy of these filings, other than any exhibits unless the exhibits are specifically incorporated by reference into this prospectus. You may request a copy by writing us at the following address or telephoning one of the following numbers:

Investor Relations Department

Duke Energy Corporation

P.O. Box 1005

Charlotte, North Carolina 28201-1005

800-488-3853 (toll free)

You should rely only on the information contained or incorporated by reference in this prospectus. We have not authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not making an offer to sell the securities described in this prospectus in any state where the offer or sale is not permitted. You should assume that the information contained in the prospectus is accurate only as of its date. Our business, financial condition, results of operations and prospects may have changed since that date.

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| | |
|:---|:---|
|  ***For information regarding:***  | **![[MISSING IMAGE: lg_dukeenergyr-pn.jpg]](lg_dukeenergyr-pn.jpg) <br> Duke Energy Corporation <br> Variable Denomination Floating Rate <br> Demand Notes <br> ![[MISSING IMAGE: lg_premiernotes-pn.jpg]](lg_premiernotes-pn.jpg) <br> Prospectus <br> September 30, 2025 <br> Distributed by Georgeson Securities <br> Corporation, a registered broker-dealer.**  |
| &nbsp;&nbsp;&nbsp; *Rates and Other Information* <br> 800-659-DUKE (3853)  | **![[MISSING IMAGE: lg_dukeenergyr-pn.jpg]](lg_dukeenergyr-pn.jpg) <br> Duke Energy Corporation <br> Variable Denomination Floating Rate <br> Demand Notes <br> ![[MISSING IMAGE: lg_premiernotes-pn.jpg]](lg_premiernotes-pn.jpg) <br> Prospectus <br> September 30, 2025 <br> Distributed by Georgeson Securities <br> Corporation, a registered broker-dealer.**  |
| &nbsp;&nbsp;&nbsp; *An additional Prospectus* <br> 800-659-DUKE (3853) <br> or download from: <br> www.duke-energy.com/premiernotes  | **![[MISSING IMAGE: lg_dukeenergyr-pn.jpg]](lg_dukeenergyr-pn.jpg) <br> Duke Energy Corporation <br> Variable Denomination Floating Rate <br> Demand Notes <br> ![[MISSING IMAGE: lg_premiernotes-pn.jpg]](lg_premiernotes-pn.jpg) <br> Prospectus <br> September 30, 2025 <br> Distributed by Georgeson Securities <br> Corporation, a registered broker-dealer.**  |
| &nbsp;&nbsp;&nbsp; *Duke Energy* <br> See our website at <br> www.duke-energy.com/premiernotes or <br> see "Where You Can Find More <br> Information" on page 32 hereof.  | **![[MISSING IMAGE: lg_dukeenergyr-pn.jpg]](lg_dukeenergyr-pn.jpg) <br> Duke Energy Corporation <br> Variable Denomination Floating Rate <br> Demand Notes <br> ![[MISSING IMAGE: lg_premiernotes-pn.jpg]](lg_premiernotes-pn.jpg) <br> Prospectus <br> September 30, 2025 <br> Distributed by Georgeson Securities <br> Corporation, a registered broker-dealer.**  |

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#### Part II INFORMATION NOT REQUIRED IN PROSPECTUS
**Item 14.** *Other Expenses of Issuance and Distribution.* 

The following is an itemized statement of estimated expenses of Duke Energy in connection with the issue of the Notes:

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| | |
|:---|:---|
| SEC filing fee  | $0 |
| Fees and expenses of agent bank  | $1050000 |
| Fees and expenses of broker-dealer  | $75000 |
| Fees and expenses of trustee  | $11550 |
| Printing expenses  | $15000 |
| Accountants' fees and expenses  | $40000 |
| Counsel fees and expenses  | $6000 |
| Total  | $1197550 |

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**Item 15.** *Indemnification of Directors and Officers.* 

Delaware law permits a corporation to adopt a provision in its certificate of incorporation eliminating or limiting the personal liability of a director, but not an officer in his or her capacity as such, to the corporation or its shareholders for monetary damages for breach of fiduciary duty as a director, except that such provision shall not eliminate or limit the liability of a director for (i) any breach of the director's duty of loyalty to the corporation or its shareholders, (ii) acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) liability under section 174 of the Delaware General Corporation Law (the "DGCL") for unlawful payment of dividends or stock purchases or redemptions, or (iv) any transaction from which the director derived an improper personal benefit. Our certificate of incorporation provides that no director of ours shall be personally liable to us or our shareholders for monetary damages for breach of fiduciary duty as a director, except to the extent such an exemption from liability or limitation thereof is not permitted under applicable law.

Under Delaware law, a corporation may indemnify any person made a party or threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative, other than action by or in the right of the corporation, because he or she is or was an officer, director, employee or agent of the corporation or was serving at the request of the corporation as an officer, director, employee or agent of another corporation or entity against expenses, judgments, fines and amounts paid in settlement actually and reasonably incurred in connection with such action, suit or proceeding: (1) if he or she acted in good faith and in a manner he reasonably believed to be in or not opposed to the best interests of the corporation; or (2) in the case of a criminal proceeding, he or she had no reasonable cause to believe that his or her conduct was unlawful. A corporation may indemnify any person made a party or threatened to be made a party to any threatened, pending or completed action or suit brought by or in the right of the corporation because he or she was an officer, director, 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 or other entity, against expenses actually and reasonably incurred in connection with such action or suit if he or she acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interests of the corporation, provided that such indemnification will be denied if the person is found liable to the corporation unless, in such a case, the court determines the person is entitled to indemnification for such expenses in any event. A corporation must indemnify a present or former director or officer who successfully defends himself or herself in a proceeding to which he or she was a party because he or she was a director or officer of the corporation against expenses actually and reasonably incurred by him or her. Expenses incurred by an officer or director, or any employees or agents as deemed appropriate by the board of directors, in defending civil or criminal proceedings may be paid by the corporation in advance of the final disposition of such proceedings upon receipt of an undertaking by or on behalf of such director or officer to repay such amount if it shall ultimately be determined that he or she is not entitled to be indemnified by the corporation. The Delaware law regarding indemnification and

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expense advancement is not exclusive of any other rights which may be granted by our certificate of incorporation or bylaws, a vote of shareholders or disinterested directors, agreement or otherwise.

Under the DGCL, termination of any proceeding by conviction or upon a plea of nolo contendere or its equivalent shall not, of itself, create a presumption that such person is prohibited from being indemnified.

Our bylaws provide that we shall 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 us), by reason of the fact that such person is or was a director or officer of us, or is or was a director or officer serving at our request 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 such person in connection with such action, suit or proceeding if such person acted in good faith and in a manner such person reasonably believed to be in or not opposed to our best interests, and, with respect to any criminal action or proceeding, had no reasonable cause to believe such person's conduct was unlawful. The termination of any action, suit or proceeding by judgment, order, settlement, conviction, or upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that the person did not act in good faith and in a manner which such person reasonably believed to be in or not opposed to our best interests, and, with respect to any criminal action or proceeding, had reasonable cause to believe that such person's conduct was unlawful.

Our bylaws further provide that we shall 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 us to procure a judgment in its favor by reason of the fact that such person is or was a director or officer of us, or is or was a director or officer of us serving at our request 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 such person in connection with the defense or settlement of such action or suit if such person acted in good faith, and in a manner such person reasonably believed to be in or not opposed to our best interests 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 us unless and only to the extent that the Court of Chancery of the State of Delaware 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 Court of Chancery or such other court shall deem proper.

However, our bylaws provide that we will only provide indemnification pursuant to the bylaws (unless ordered by a court) if such indemnification is authorized in the specific case upon a determination that indemnification of the present or former director or officer is proper in the circumstances because such person has met the applicable standard of conduct set forth in the bylaws. Such determination shall be made, with respect to a person who is a director or officer at the time of such determination, (i) by a majority vote of the directors who are not parties to such action, suit or proceeding, even though less than a quorum, or (ii) by a committee of directors who are not parties to such action, suit or proceeding designated by a majority vote of directors who are not parties to such an action, suit or proceeding, even though less than a quorum, or (iii) if there are no such directors, or if such directors so direct, by independent legal counsel in a written opinion, or (iv) by the shareholders. Such determination shall be made, with respect to former directors and officers, by any person or persons having the authority to act on the matter on our behalf. To the extent, however, that a present or former director or officer of ours has been successful on the merits or otherwise in defense of any action, suit or proceeding, or in 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, without the necessity of authorization in the specific case.

Our bylaws further provide that except for proceedings to enforce rights to indemnification, we shall not be obligated to indemnify any director or officer (or his or her heirs, executors or personal or legal representatives) or advance expenses in connection with a proceeding (or part thereof) initiated by such person unless such proceeding (or part thereof) was authorized or consented to by the board of directors.

The indemnification and advancement of expenses provided by, or granted pursuant to, our bylaws are not deemed exclusive of any other rights to which those seeking indemnification or advancement of expenses

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may be entitled under the certificate of incorporation, bylaws, agreement, vote of stockholders or disinterested directors or otherwise, both as to action in such person's official capacity and as to action in another capacity while holding such office. It is our policy that indemnification shall generally be made to the fullest extent permitted by law. Our bylaws do not preclude indemnifying persons in addition to those specified in the bylaws but whom we have the power or obligation to indemnify under the provisions of the DGCL, or otherwise.

We may also purchase and maintain insurance on behalf of any person who is or was a director or officer, or is or was a director or officer serving at our request as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise against any liability asserted against such person and incurred by such person in any such capacity, or arising out of such person's status as such, whether or not we would have the power or the obligation to indemnify such person against such liability under the provisions of the bylaws.

The Duke Energy PremierNotes Plan provides for the indemnification of officers and directors of Duke Energy under certain circumstances.

**Item 16.** *Exhibits.* 

The exhibits to this registration statement are listed in the exhibit index, which appears elsewhere herein and is incorporated by reference.

**Item 17.** *Undertakings.* 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (a) The undersigned registrant hereby undertakes:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933, as amended;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (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 Securities and Exchange 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;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (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 (i), (ii) and (iii) do not apply if the registration statement is on Form S-3 or Form F-3 and the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed with or furnished to the Securities and Exchange Commission by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (2) That, for the purpose of determining any liability under the Securities Act of 1933, as amended, 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (3) To remove from registration by means of a post-effective amendment any of the securities being registered that remain unsold at the termination of the offering.

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (4) That, for the purpose of determining liability under the Securities Act of 1933, as amended, to any purchaser:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) 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

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (ii) 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, as amended, 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 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (5) That, for the purpose of determining liability of the registrant under the Securities Act of 1933, as amended, 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:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (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;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (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

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (b) The undersigned registrant hereby further undertakes that, for purposes of determining any liability under the Securities Act of 1933, as amended, 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.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (c) Insofar as indemnification for liabilities arising under the Securities Act of 1933, as amended, may be permitted to directors, officers and controlling persons of the registrant pursuant to the provisions described under Item 15 in the registration statement above, 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

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against the registrant 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.

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#### EXHIBIT INDEX

---

| | |
|:---|:---|
| **Exhibit <br> Number**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Exhibit**  |
| 4.1  | [Amended and Restated Duke Energy PremierNotes Plan dated as of September 30, 2025](tm2527491d2_ex4-1.htm)  |
| 4.2\*  | [Indenture dated as of April 4, 2011 (filed as Exhibit 4.2 to Registration Statement on Form S-3 of the registrant, Registration No.333-173282, and incorporated by reference herein)](https://www.sec.gov/Archives/edgar/data/1326160/000119312511087509/dex42.htm)  |
| 5.1  | [Opinion of Elizabeth H. Jones, Esq.](tm2527491d2_ex5-1.htm)  |
| 23.1  | [Consent of Deloitte & Touche LLP, Independent Registered Public Accounting Firm for Duke Energy Corporation](tm2527491d2_ex23-1.htm)  |
| 23.2  | [Consent of Elizabeth H. Jones, Esq. (included in Exhibit 5.1)](tm2527491d2_ex5-1.htm)  |
| 24.1  | [Powers of Attorney of Directors and Officers of Duke Energy Corporation](tm2527491d2_ex24-1.htm)  |
| 24.2  | [Resolution of Duke Energy Corporation regarding Power of Attorney](tm2527491d2_ex24-2.htm)  |
| 25.1  | [Form T-1 Statement of Eligibility of The Bank of New York Mellon Trust Company, N.A.](tm2527491d2_ex25-1.htm)  |
| 107  | [Filing Fee Table](tm2527491d1_ex-filingfees.htm)  |

---

\*

Previously filed and incorporated herein by reference

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#### SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, Duke Energy Corporation 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 Charlotte, State of North Carolina, on September 30, 2025.

DUKE ENERGY CORPORATION

By:

/s/ Harry K. Sideris\*

Name:

Harry K. Sideris

Title:

*President and Chief Executive Officer* 

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 dates indicated.

---

| | | |
|:---|:---|:---|
| **Signature**  | **Title**  | **Date**  |
| /s/ Harry K. Sideris\* <br>Harry K. Sideris  | Director and President and Chief Executive Officer (Principal Executive Officer) | September 30, 2025  |
| /s/ Brian D. Savoy\* <br>Brian D. Savoy  | Executive Vice President and Chief Financial Officer (Principal Financial Officer) | September 30, 2025  |
| /s/ Cynthia S. Lee\* <br>Cynthia S. Lee  | Senior Vice President, Chief Accounting Officer and Controller (Principal Accounting Officer) | September 30, 2025  |
| /s/ Derrick Burks\* <br>Derrick Burks  | Director | September 30, 2025  |
| /s/ Annette K. Clayton\* <br>Annette K. Clayton  | Director | September 30, 2025  |
| /s/ Theodore F. Craver, Jr.\* <br>Theodore F. Craver, Jr.  | Director | September 30, 2025  |
| /s/ Robert M. Davis\* <br>Robert M. Davis  | Director | September 30, 2025  |
| /s/ Caroline D. Dorsa\* <br>Caroline D. Dorsa  | Director | September 30, 2025  |
| /s/ W. Roy Dunbar\* <br>W. Roy Dunbar  | Director | September 30, 2025  |
| /s/ Nicholas C. Fanandakis\* <br>Nicholas C. Fanandakis  | Director | September 30, 2025  |

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| | | |
|:---|:---|:---|
| **Signature**  | **Title**  | **Date**  |
| /s/ Jeffrey B. Gulder\* <br>Jeffrey B. Gulder  | Director | September 30, 2025  |
| /s/ John T. Herron\* <br>John T. Herron  | Director | September 30, 2025  |
| /s/ Idalene Fay Kesner\* <br>Idalene Fay Kesner  | Director | September 30, 2025  |
| /s/ E. Marie McKee\* <br>E. Marie McKee  | Director | September 30, 2025  |
| /s/ Michael J. Pacilio\* <br>Michael J. Pacilio  | Director | September 30, 2025  |
| /s/ Thomas E. Skains\* <br>Thomas E. Skains  | Director | September 30, 2025  |
| /s/ William E. Webster, Jr.\* <br>William E. Webster, Jr.  | Director | September 30, 2025  |

---

\*

The undersigned, by signing her name hereto, does hereby sign this document on behalf of the registrant and on behalf of each of the above-named persons indicated above by asterisks, pursuant to a power of attorney duly executed by the registrant and such persons, filed with the Securities and Exchange Commission as an exhibit hereto.

---

| | |
|:---|:---|
| By: | /s/ Elizabeth H. Jones <br>*Attorney-in-Fact*  |

---

September 30, 2025

------

## Exhibit 4.1

**Exhibit 4.1**

**DUKE ENERGY PREMIERNOTES PLAN**

This Amended and Restated Duke Energy PremierNotes Plan (the "Plan") is established by Duke Energy Corporation (the "Company") as of September 30, 2025 and amends and restates the Duke Energy PremierNotes Plan established by Duke Energy Corporation as of April 4, 2011. This Plan applies to current and future investments in Duke Energy PremierNotes and replaces any prior version of the Plan or other agreements regarding your investment. The Plan was established to provide eligible investors with a convenient means of making investments in Variable Denomination Floating Rate Demand Notes of the Company.

I. Definitions

As hereinafter used:

"Application" shall have the meaning set forth in paragraph IV hereof.

"Agent Bank" shall have the meaning set forth in paragraph IX hereof.

"Business Day" shall mean any day other than a Saturday or a Sunday or a day on which the Agent Bank is authorized or obligated by law to close.

"Company" shall mean Duke Energy Corporation, a Delaware corporation, and, as applicable, its subsidiaries.

"Eligible Investor" shall mean any person designated by the Committee as eligible to invest in the Notes pursuant to paragraph II hereof.

"Indenture" shall have the meaning set forth in paragraph VIII hereof.

"Note Register" shall have the meaning set forth in paragraph IV hereof.

"Notes" shall mean the nontransferable Variable Denomination Floating Rate Demand Notes of the Company issued pursuant to and in accordance with the terms, conditions and provisions of the Indenture, as in effect from time to time.

"Investor" shall mean any Eligible Investor having established a Plan Investment.

"Plan" shall mean the Duke Energy PremierNotes Plan.

"Plan Investment" shall mean an investment established and maintained pursuant to the Plan and recorded on the Note Register.

"Plan Investment Note Balance" shall have the meaning set forth in paragraph IV hereof.

"Registered Investment Address" shall have the meaning set forth in paragraph IV hereof.

"Registered Investment Owner" shall mean (a) in the case of an individual Plan Investment, the Investor or (b) in the case of a joint Plan Investment, the Investor and the person(s) who have been designated by the Investor as having a joint interest in the Plan Investment, (c) in the case of a custodial Plan Investment, the Investor, as custodian, or (d) in the case of a trust Plan Investment established for the benefit of an Investor or for the benefit of a beneficiary, the trust, or, if such Investor is a joint owner of the Plan Investment with the trust, the Investor and the trust, all as recorded on the Note Register.

"Trustee" shall have the meaning set forth in paragraph VIII hereof.

II. Eligibility

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Except as hereinafter provided, any person may invest in the Notes issued pursuant to the Plan, provided such person is a citizen of the United States or, except as provided in applicable United States Treasury Regulations, a partnership, a corporation incorporated or established in or under the laws of the United States or a Trust or estate that is treated as a United States person under Section 7701 of the Internal Revenue Code, as amended.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) The Committee may from time to time in its sole discretion limit or expand the categories of persons who shall be eligible to invest in the Notes subject to such limitations or regulations as the Committee from time to time may prescribe.

III. Participation

Participation in the Plan shall be entirely voluntary. An Eligible Investor may elect to participate in the Plan by delivering to the Company or to the Agent Bank, as designated by the Committee from time to time, a properly completed Application, and delivering to the Company and/or to the Agent Bank such other forms and undertakings as may be designated by the Committee from time to time.

IV. Establishment of Plan Investments -- Note Register

Plan Investments shall be established by the Eligible Investor delivering to the Company or to the Agent Bank, as the Committee from time to time may designate, a properly executed application (the "Application"), which shall require such information and provide such elections as the Committee from time to time may determine, together with such other forms and undertakings as may be designated by the Committee from time to time.

Subject to such limitations or regulations as the Committee from time to time may prescribe, each Eligible Investor may establish and maintain one or more of the following types of investments: individual investments, joint investments, trust investments, corporate investments, and custodial investments pursuant to the applicable Uniform Gifts to Minors Act of the state in which the Eligible Investor resides. In the case of any trust investment, the income of such trust must be subject to U.S. Federal income taxation regardless of its source.

The Company, the Agent Bank or another agent designated by the Company shall maintain a listing (the "Note Register") setting forth such information regarding each Plan Investment as the Committee from time to time may determine, including but not limited to the name of the Investor, such Investor's social security number or taxpayer identification number, the names of other Registered Investment Owners, if any, the address to which notices under the Plan are to be sent (the "Registered Investment Address"), the amounts credited to the Plan Investment and the amount of Notes redeemed by such Investor from time to time (the "Plan Investment Note Balance") and accrued and unpaid interest on the Plan Investment Note Balance.

V. Investment Under the Plan -- Issuance of Notes

The Notes shall be issued under the Indenture between the Company and the Trustee, as amended or supplemented from time to time in accordance with the terms thereof.

The principal amount of Notes issued to an Investor under the Plan shall at all times be equal to the Plan Investment Note Balance in such Investor's Plan Investment and shall bear interest from time to time at the rate provided for in paragraph VI hereof.

The Committee may designate from time to time methods of making investments under the Plan which shall be subject to such limitations and requirements as the Committee may determine.

VI. Interest Rate

Each Note shall bear interest from time to time at a floating rate per annum to be determined by the Committee on a weekly basis to be effective on the following Monday. Such rate of interest will be determined by the Committee in the manner and on the basis chosen by the Committee in its sole discretion. The Committee may delegate the authority to set the interest rate on the Notes to the Treasurer of the Company or such other person or persons as the Committee determines in its sole discretion.

Interest on each Note shall accrue and be compounded daily based on a 365/366-day year. Accrued interest shall be automatically reinvested in the Notes as of the fifteenth day of each calendar month.

VII. Redemption of Notes -- Termination of Plan Investments

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Subject to the provisions of this paragraph VII, Registered Investment Owners may redeem all or part of the principal amount of the Note evidencing amounts invested by the Registered Investment Owner in the Notes at any time and from time to time by written request to the Agent Bank for redemption by check (subject to such minimum redemption amounts, fees and other limitations and requirements as the Committee may determine). The Committee may designate from time to time other methods of redemption of the Notes by the Registered Investment Owners under the Plan which shall be subject to such limitations and requirements as the Committee may determine.

A Registered Investment Owner may elect voluntarily to terminate participation in the Plan and close such Registered Investment Owner's Plan Investment by written or telephonic notice to the Agent Bank. Upon election by the Registered Investment Owner to terminate participation in the Plan, all amounts credited to the principal amount of the Notes held by such Registered Investment Owner, together with accrued and unpaid interest to but not including the Business Day next following the effective date of such termination, less applicable fees, shall be paid by check to the Registered Investment Owner as such Owner's interests shall appear at the Registered Investment Address.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) The Company shall have the right to redeem, at any time at its option, including in the event the Plan is modified, suspended or terminated pursuant to paragraph XIII hereof, all or any part of the Notes. Any partial redemption of the Notes will be effected by lot or pro rata or by any other method that is deemed fair and appropriate by the Agent Bank. Interest on the redeemed amount shall cease to accrue on and after the effective date on which the redeemed principal amount shall have become due and payable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) With respect to any Plan Investment which shall have a Plan Investment Note Balance of less than $1,000 (or such other amount as the Committee from time to time may determine without any prior notice to the Investors) (the "Minimum Investment Note Balance") and to which no investment shall have been made (other than the crediting of interest thereto pursuant to the provisions of paragraph VI hereof) for a continuing period of three calendar months immediately preceding determination of such deficiency (or such other period as the Committee from time to time may determine), the Company shall have the right, after 30 days following the date of a written notice to the Investor (provided that the Plan Investment Note Balance shall not have been restored to the Minimum Investment Note Balance during such 30-day period), to terminate such Investor's investment in the Notes and to redeem the principal amount of the Notes together with accrued and unpaid interest thereon less applicable fees. In the event of such a redemption, the Company shall cause the Agent Bank to mail the proceeds thereof to the Registered Investment Owner as such Registered Investment Owner's registered interests shall appear at the Registered Investment Address and to terminate the Plan Investment. Interest on the redeemed amount shall cease to accrue on and after the effective date on which the redeemed principal amount shall have become due and payable.

With respect to any Plan Investment which shall have a Plan Investment Note Balance of greater than $10,000,000 (or such other amount as the Committee from time to time may determine without any prior notice to the Investors) (the "Maximum Investment Note Balance") for a continuing period of three calendar months immediately preceding the determination of such excess (or such other period as the Committee from time to time may determine), the Company shall have the right, after 30 days following the date of a written notice to the Investor (provided that the Plan Investment Note Balance shall not have been reduced to be equal to or less than the Maximum Investment Note Balance during such 30-day period), to redeem the principal amount of the Notes in excess of the Maximum Investment Note Balance (or such greater amount as specified by the Committee in the notice to the Investor) together with accrued and unpaid interest thereon, less applicable fees. In the event of such a redemption, the Company shall cause the Agent Bank to mail the proceeds thereof to the Registered Investment Owner as such Registered Investment Owner's registered interests shall appear at the Registered Investment Address. Interest on the redeemed principal amount shall cease to accrue on and after the effective date on which the redeemed principal amount shall have become due and payable.

The Company shall have the right to redeem any Notes of any Investor who is not or is no longer eligible to invest in the Notes in accordance with Part II hereof, or who has abused or misused the investment or redemption provisions applicable to the Notes or whose investments are otherwise inconsistent with the objectives of the Plan, in each case as the Company determines in its sole judgment and discretion. In such circumstances, the Company shall notify the Registered Investment Owner of its intention to redeem in full the Notes on the third Business Day following the date of the Company's notice. In the event of such a redemption, the Company shall cause the Agent Bank to mail the proceeds thereof to the Registered Investment Owner as such Registered Investment Owner's registered interests shall appear at the Registered Investment Address. Interest on the redeemed principal amount shall cease to accrue on and after the effective date on which the redeemed principal amount shall have become due and payable.

The Company shall have the right to redeem from time to time, without prior notice to any Investor, all or a portion of the Notes of an Investor in an amount equal to any applicable fees established under the Plan that are then owed by such Investor. In such instance, the redemption proceeds shall be deemed paid by reducing the principal amount of such Investor's Notes by the amount of such unpaid fees, which reduction shall be applied to the payment of such fees. Such redemption shall be effective upon notice from the Company to the Agent Bank, and the date of such notice shall be the effective date for the redemption of such amount of the Notes. On the effective date of such a redemption any interest on the portion of the Notes so called for redemption shall cease to accrue. Notice of such redemptions shall be provided to the Registered Investment Owner of the Notes so redeemed in the manner and at the times as determined from time to time by the Committee.

VIII. Trustee

The Company shall appoint one or more banks, corporations or other entities to act as trustee (the "Trustee") for Notes issued pursuant to the Plan and shall enter into an indenture (the "Indenture") with such bank, corporation or other entity which meets the requirements of the Trust Indenture Act of 1939. Subject to the requirements of the Indenture, the Company and the Trustee may amend or supplement the Indenture from time to time.

IX. Agent Bank

The Company shall appoint one or more banks, corporations or other entities to act as agent under the Plan (the "Agent Bank") and at any time may remove the Agent Bank and appoint a successor Agent Bank. The Committee may, without reference to or any action by any Investor or other Registered Investment Owner, enter into such agreement or further agreements and take such other steps and execute such other instruments as the Company in its sole discretion may deem necessary or desirable to carry the Plan into effect or to facilitate its administration.

X. Committee

The Company's Board of Directors has authorized the establishment of a Duke Energy PremierNotes Committee (the "Committee") consisting of at least three persons. The Committee shall currently consist of the Chief Financial Officer, the Treasurer, an Assistant Treasurer and additional members of the Finance and Legal Groups of the Company. The Chief Financial Officer and the Treasurer of the Company may from time to time remove or appoint other officers or employees of the Company to serve on the Committee and may designate an alternate for each of such members, who shall have full power to act in the absence or inability to act of such member. The Committee shall act by a majority of its members, with or without a meeting.

The Committee shall have full power and authority to administer the Plan, to interpret its provisions, to adopt forms for use thereunder, to adopt rules and regulations in connection therewith and to make the determinations thereunder provided for it to be made. Any interpretation of the provisions of the Plan by the Committee shall be final and conclusive, and shall bind and may be relied on by all parties in interest to the Plan.

No member (or alternate for a member) of the Committee or director, officer or employee of the Company shall be liable for any action or failure to act under or in connection with the Plan, except for his or her own bad faith. Each director, officer and employee of the Company who is or shall have been designated to act on behalf of the Company and each person who is or shall have been a member of the Committee or an alternate for a member or a director, officer or employee of the Company, as such, shall be indemnified and held harmless by the Company against and from any and all loss, cost, liability or expense that may be imposed upon or reasonably incurred by him or her in connection with or resulting from any claim, action, suit or proceeding to which he or she may be a party or in which he or she may be involved by reason of any action taken or failure to act under the Plan and against and from any and all amounts paid by him or her in settlement thereof (with the Company's written approval) or paid by him or her in satisfaction of a judgment in any such action, suit or proceeding, except a judgment in favor of the Company based upon a finding of his or her bad faith subject, however, to the condition that, upon the assertion or institution of any such claim, action, suit or proceeding against him or her, he or she shall in writing give the Company an opportunity, at its own expense, to handle and defend the same before he or she undertakes to handle and defend it on his or her own behalf. The foregoing right of indemnification shall not be exclusive of any other right to which such person may be entitled as a matter of law or otherwise, or any power that the Company may have to indemnify him or her or hold him or her harmless.

XI. Plan Investment Statements

On approximately the 15th day of each calendar month (or such other date as the Committee shall determine) other than the month after the end of each calendar quarter, there shall be furnished with respect to each Plan Investment that had an electronic investment or redemption transaction during such previous month a statement setting forth a summary of such electronic transactions during the previous month and such additional information as the Committee from time to time may determine. On approximately the 15th day of the month after the end of each calendar quarter (or such other date as the Committee shall determine), there shall be furnished with respect to each Plan Investment a statement setting forth a summary of all transactions in such Plan Investment during the previous quarter, including beginning and ending Plan Investment Balances, interest credited, and such additional information as the Committee from time to time may determine. Such statements shall be deemed to have been accepted by the Investor and other Registered Investment Owners as correct unless written notice to the contrary shall be received by the Agent Bank within 30 days after the mailing of such statement to the Registered Investment Address.

XII. Notices, etc.

All notices, statements and other communications from the Agent Bank or the Company to an Investor, other Registered Investment Owner or designated beneficiary shall be deemed to have been duly given, furnished, delivered or transmitted, as the case may be, when delivered to (or when mailed to) the most recent Registered Investment Address.

All notices, instructions and other communications from an Investor or other Registered Investment Owner to the Company or Agent Bank required or permitted hereunder (including without limitation Applications and redemption requests) shall be in the respective forms from time to time prescribed therefor by the Committee, shall be mailed by first-class mail or delivered to such location as shall be specified by and upon forms prescribed by the Committee and shall be deemed to have been duly given and delivered upon receipt by the Company or the Agent Bank, as the case may be, at such location.

From time to time as necessary to facilitate the administration of the Plan, the Company, the Agent Bank, the Trustee and the Committee shall deliver to each other copies or consolidations of such notices, instructions or other communications in respect of the Plan as it may receive from Investors or Registered Investment Owners.

XIII. Termination, Suspension and Modification

The Company may terminate the Plan at any time or from time to time suspend or modify the Plan, in part, in its entirety or in respect of the employees of the Company or in respect of any person or persons designated as Eligible Investors. The Company may at any time or from time to time terminate or modify the Plan or suspend for any period the operation of any provision thereof in respect of any Investors located in one or more jurisdictions. Any such termination, modification or suspension of the Plan may affect Investors in the Plan at the time thereof, as well as future Investors, but may not affect the rights of an Investor unless such proposed action shall have been communicated to such Investor in sufficient time prior to the effective date thereof to permit such Investor to redeem amounts credited to his or her Plan Investment together with accrued and unpaid interest in accordance with the terms of the Plan in effect prior to the effective date of such termination, modification or suspension. The Company shall notify the Trustee promptly after any such termination, modification or suspension of the Plan. Any modification that adversely affects the rights or duties of the Trustee may be made only with the consent of the Trustee.

Anything herein to the contrary notwithstanding, no such termination or modification of the Plan or suspension or any provision thereof may diminish the principal amount of any Note, or such Investor's unpaid interest thereon.

XIV. Rights Not Transferable

Except in the case of (i) Note redemptions in accordance with paragraph VII hereof, and (ii) the establishment and subsequent termination of joint, custodial and trust Plan Investments, no right or interest of any Investor or other Registered Investment Owner under the Plan or in such Investor's Plan Investment or the Notes issued in connection therewith shall be assignable or transferable, in whole or in part, either directly or by operation of law or otherwise, including without limitation by execution, levy, garnishment, attachment, pledge or in any other manner, but excluding devolution by death or mental incompetency; no attempted assignment or transfer thereof shall be effective; and no right or interest of any Investor, other Registered Investment Owner or designated beneficiary under the Plan or in a Plan Investment or the Notes issued in connection therewith shall be pledged or hypothecated to secure, or otherwise be made subject to, any obligation or liability of such Investor or other Registered Investment Owner. Notwithstanding the provisions of this paragraph XIV, a Plan Investment may be debited for all amounts which the Company or the Agent Bank shall have caused, in error, to be credited to such Plan Investment.

XV. Fees

The Committee may designate from time to time such fees in connection with investments or redemptions in the Notes or otherwise in connection with the Notes, including fees for checks, for returned checks and for stop payment requests, as shall be determined by the Committee, *provided* the Committee shall communicate such fees to the Investors in sufficient time prior to the effective date thereof to permit the Investors to redeem amounts credited to their respective Plan Investments together with accrued and unpaid interest in accordance with the terms of the Plan in effect prior to the effective date of such fees.

XVI. Miscellaneous

The records of the Company, the Agent Bank, the Trustee and the Committee shall be conclusive in respect of all matters involved in the administration of the Plan.

Except as specified in paragraph XV, all expenses of administering the Plan, including without limitation the fees of the Agent Bank and the Trustee and other expenses charged or incurred by the Agent Bank and the Trustee, shall be borne by the Company, and no charge or penalty shall be imposed by the Company, the Agent Bank or the Trustee against any Plan Investment or Registered Investment Owner by reason of participation in the Plan; *provided*, *however*, that neither the Company, the Agent Bank nor the Trustee shall have any liability for any cost incurred by a Registered Investment Owner including, but not limited to, costs incurred in connection with the wiring of funds to make investments under the Plan.

The Plan shall be governed by and construed in accordance with the laws of the State of New York.

XVII. Effectiveness

The Plan shall be effective as of the date and time the Registration Statement on Form S-3, dated on or about the date first written above, with respect to the Notes is filed with the Securities and Exchange Commission and becomes effective.

## Exhibit 5.1

**Exhibit 5.1**

525 South Tryon Street

Charlotte, North Carolina 28202

September 30, 2025

Board of Directors

Duke Energy Corporation

525 South Tryon Street

Charlotte, North Carolina 28202

Ladies and Gentlemen:

I am employed by Duke Energy Business Services LLC, the service company subsidiary of Duke Energy Corporation, a Delaware corporation (the "Company"). I am a member in good standing of the North Carolina State Bar.

I have advised the Company in connection with the filing of a Registration Statement on Form S-3 (the "Registration Statement) on September 30, 2025. The Registration Statement relates to the proposed issuance and sale from time to time pursuant to Rule 415 under the Securities Act of certain variable denomination floating rate demand notes of the Company (the "Securities"). The Securities will be issued pursuant to the Indenture, dated as of April 4, 2011, between the Company and The Bank of New York Mellon Trust Company, N.A., as Trustee (the "Indenture").

For this purpose, I have examined such Company records and other documents, and have made such investigations of law, as I have considered necessary or appropriate for the purposes of this opinion. In rendering the opinions below with respect to matters of New York law, I have relied on the opinion of Hunton Andrews Kurth LLP, counsel to the Company, attached hereto as Annex I.

Based upon the foregoing, I am of the opinion that the issuance of the Securities has been duly authorized by the Company and that when the Securities have been duly issued and delivered in accordance with the Indenture and sold as described in the Registration Statement, any amendment thereto and the prospectus included in the Registration Statement and any free-writing prospectus filed with the Securities and Exchange Commission after the effectiveness of the Registration Statement, the Securities will be legal, valid, and binding obligations of the Company, entitled to the benefits of the Indenture.

My opinion that the Securities are legal, valid, and binding obligations of the Company is qualified as to limitations imposed by bankruptcy, insolvency, reorganization, arrangement, fraudulent conveyance, moratorium or other laws relating to or affecting the enforcement of creditors' rights generally, and general principles of equity, including without limitation concepts of materiality, reasonableness, good faith and fair dealing, and the possible unavailability of specific performance or injunctive relief, regardless of whether such enforceability is considered in a proceeding in equity or at law.

I hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the reference to me under the caption "Validity of Notes" in the prospectus forming a part of the Registration Statement. In giving such consent, I do not thereby concede that I am included in the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations thereunder.

Very truly yours,

---

| |
|:---|
| /s/ Elizabeth H. Jones |
| Elizabeth H. Jones |

---

**Annex I**

---

| | |
|:---|:---|
| &nbsp;&nbsp; ![](tm2527491d2_ex5-1img001.jpg)<br>| Hunton Andrews Kurth LLP<br> File No: 034085.272<br>|

---

September 30, 2025

Elizabeth H. Jones

Duke Energy Business Services LLC

525 South Tryon Street

Charlotte, North Carolina 28202-1803

RE: DUKE ENERGY CORPORATION

Registration Statement on Form S-3<br>

Ms. Jones:

We have acted as counsel to Duke Energy Corporation, a Delaware corporation (the "Company"), in connection with the filing of a Registration Statement on Form S-3 (the "Registration Statement") under the Securities Act of 1933, as amended (the "Securities Act"), filed with the Securities and Exchange Commission on September 30, 2025. The Registration Statement relates to the proposed issuance and sale from time to time pursuant to Rule 415 under the Securities Act of certain variable denomination floating rate demand notes of the Company (the "Securities"). The Securities will be issued pursuant to the Indenture, dated as of April 4, 2011, between the Company and The Bank of New York Mellon Trust Company, N.A., as Trustee (the "Indenture").

In rendering the opinions set forth below, we have examined the Registration Statement, the Indenture, and such other documents as we have deemed necessary for purposes of this opinion letter. In such examinations, we have assumed the legal capacity of all natural persons, the genuineness of all signatures on all original documents, the authenticity of all documents submitted to us as originals, the conformity to the original documents of all copies submitted to us, the authenticity of the originals of documents submitted to us as copies and the due authorization, execution and delivery of all documents where due authorization, execution and delivery are prerequisite to the effectiveness thereof.

The opinions set forth below are subject to the following further qualifications, assumptions and limitations:

&nbsp;&nbsp;&nbsp;&nbsp;(i) the validity or enforcement of any agreements or instruments may be limited by applicable bankruptcy, insolvency, reorganization, moratorium
or other similar laws affecting creditors' rights generally and by general principles of equity (regardless of whether enforceability
is considered in a proceeding in equity or at law); and

&nbsp;&nbsp;&nbsp;&nbsp;(ii) we do not express any opinion as to the applicability or effect of any fraudulent transfer, preference or similar law on any agreements
or instruments or any transactions contemplated thereby.

Based upon the foregoing, and subject to the qualifications and limitations stated herein, we are of the opinion that when the terms of the Securities have been established in accordance with the Indenture and approved and authorized (including any necessary regulatory approvals) and when the Securities have been duly executed by the Company and authenticated as provided in the Indenture and duly paid for and delivered pursuant to a sale in the manner described in the Registration Statement relating to the Securities filed under the Securities Act, including the prospectus, any prospectus supplement and any free writing prospectus relating to the Securities, the Securities will be legal, valid, and binding obligations of the Company, entitled to the benefits of the Indenture.

We do not express any opinion concerning any law other than the law of the State of New York.

This opinion letter is furnished for your benefit in connection with your rendering an opinion to the Company to be filed as Exhibit 5.1 to the Registration Statement and we hereby consent to your attaching this opinion letter as an annex to such opinion. In giving our consent to your attaching this opinion letter to the opinion being rendered by you, we do not hereby admit that we come within the category of persons whose consent is required under Section 7 of the Securities Act, or the rules and regulations of the Securities and Exchange Commission thereunder. This opinion letter may not be relied upon, furnished or quoted by you for any other purpose, without our prior written consent.

Very truly yours,

/s/ Hunton Andrews Kurth LLP

## Exhibit 23.1

**Exhibit 23.1**

**CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM<br>** 

<br> We consent to the incorporation by reference in this Registration Statement on Form S-3 of our reports dated February 27, 2025, relating to the consolidated financial statements of Duke Energy Corporation and subsidiaries ("Duke Energy"), and the effectiveness of Duke Energy's internal control over financial reporting, appearing in the Annual Report on Form 10-K of Duke Energy for the year ended December 31, 2024. We also consent to the reference to us under the heading "Experts" in such Registration Statement.

---

| |
|:---|
| /s/ Deloitte & Touche LLP |
| Charlotte, North Carolina |
| September 30, 2025 |

---

## Exhibit 24.1

**Exhibit 24.1**

**DUKE ENERGY CORPORATION**

**<u>Power of Attorney</u>**

Registration Statement on Form S-3

The undersigned officers and/or directors of Duke Energy Corporation, a Delaware corporation (the "Corporation"), whether on behalf of the Corporation or as an officer and/or director thereof, do each hereby constitute and appoint Michael P. Callahan, David S. Maltz and Elizabeth H. Jones, and each of them, to act as attorneys-in- fact for and in the respective names, places and stead of the undersigned, to execute, seal, sign and file with the Securities and Exchange Commission a registration statement on Form S-3 of the Corporation related to the offer and sale of notes of the Corporation pursuant to the Duke Energy PremierNotes Program, and any and all amendments thereto, hereby granting to said attorneys-in-fact, and each of them, full power and authority to do and perform all and every act and thing whatsoever requisite, necessary or proper to be done in and about the premises, as fully to all intents and purposes as the undersigned, or any of them, might or could do if personally present, hereby ratifying and approving the acts of said attorneys-in-fact.

Executed as of the 19th day of September, 2025.

---

| | |
|:---|:---|
| <u>SIGNATURE</u> | <u>TITLE</u> |
| /s/ Jeffrey B. Guldner | Director |
| Jeffrey B. Guldner |  |

---

**DUKE ENERGY CORPORATION**

**<u>Power of Attorney</u>**

Registration Statement on Form S-3

The undersigned officers and/or directors of Duke Energy Corporation, a Delaware corporation (the "Corporation"), whether on behalf of the Corporation or as an officer and/or director thereof, do each hereby constitute and appoint Kodwo Ghartey-Tagoe, Michael P. Callahan, David S. Maltz and Elizabeth H. Jones, and each of them, to act as attorneys-in-fact for and in the respective names, places and stead of the undersigned, to execute, seal, sign and file with the Securities and Exchange Commission a registration statement on Form S-3 of the Corporation related to the offer and sale of notes of the Corporation pursuant to the Duke Energy PremierNotes Program, and any and all amendments thereto, hereby granting to said attorneys-in-fact, and each of them, full power and authority to do and perform all and every act and thing whatsoever requisite, necessary or proper to be done in and about the premises, as fully to all intents and purposes as the undersigned, or any of them, might or could do if personally present, hereby ratifying and approving the acts of said attorneys-in-fact.

Executed as of the 1st day of May, 2025.

---

| | |
|:---|:---|
| <u>SIGNATURE</u> | <u>TITLE</u> |
| /s/ Harry H. Sideris | President and Chief Executive Officer |
| Harry K. Sideris | (Principal Executive Officer and Director) |
| /s/ Brian D. Savoy | Executive Vice President and Chief Financial Officer |
| Brian D. Savoy | (Principal Financial Officer) |
| /s/ Cynthia S. Lee | Senior Vice President, Chief Accounting Officer and Controller |
| Cynthia S. Lee | (Principal Accounting Officer) |
| /s/ Theodore F. Craver, Jr. | Independent Chair |
| Theodore F. Craver, Jr. |  |

---

---

| | |
|:---|:---|
| /s/ Derrick Burks | Director |
| Derrick Burks |  |
| /s/ Annette K. Clayton | Director |
| Annette K. Clayton |  |
| /s/ Robert M. Davis | Director |
| Robert M. Davis |  |
| /s/ Caroline D. Dorsa | Director |
| Caroline D. Dorsa |  |
| /s/ W. Roy Dunbar | Director |
| W. Roy Dunbar |  |
| /s/ Nicholas C. Fanandakis | Director |
| Nicholas C. Fanandakis |  |
| /s/ John T. Herron | Director |
| John T. Herron |  |
| /s/ Idalene F. Kesner | Director |
| Idalene F. Kesner |  |
| /s/ E. Marie McKee | Director |
| E. Marie McKee |  |

---

---

| | |
|:---|:---|
| /s/ Michael J. Pacillo | Director |
| Michael J. Pacilio |  |
| /s/ Thomas E. Skains | Director |
| Thomas E. Skains |  |
| /s/ William E. Webster, Jr. | Director |
| William E. Webster, Jr. |  |

---

## Exhibit 24.2

**Exhibit 24.2**

**duke energy corporation**

**certificate**

The undersigned officer of Duke Energy Corporation, a Delaware corporation (the "Corporation"), does hereby certify that attached hereto is a true and complete copy of a resolution adopted at a meeting of the Board of Directors of the Corporation with respect to the Registration Statement, which resolution is presently in full force and effect.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 30th day of September, 2025.

---

| |
|:---|
| /s/ Elizabeth H. Jones |
| Elizabeth H. Jones |
| Assistant Corporate Secretary |

---

FURTHER RESOLVED, That each officer and director who may be required to execute such Registration Statement or any amendment thereto (whether on behalf of the Corporation or as an officer or director thereof or by attesting the seal of the Corporation or otherwise) be and hereby is authorized to execute a power of attorney appointing Kodwo Ghartey-Tagoe (or his successor as Chief Legal Officer of the Corporation), Michael P. Callahan (or his successor as Treasurer of the Corporation), David S. Maltz and Elizabeth H. Jones, and each of them, as true and lawful attorneys and agents to execute in his or her name, place and stead (in any such capacity) such Registration Statement and any and all amendments thereto and all instruments necessary or advisable in connection therewith, to attest the seal of the Corporation thereon and to file the same with the SEC, each of said attorneys and agents to have power to act with or without the others and to have full power and authority to do and perform in the name and on behalf of each of such officers and directors, or both, as the case may be, every act whatsoever necessary or advisable to be done in the premises as fully and to all intents and purposes as any such officer or director might or could do in person.

## Exhibit 25.1

**Exhibit 25.1**

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

FORM T-1

STATEMENT OF ELIGIBILITY<br> UNDER THE TRUST INDENTURE ACT OF 1939 OF A<br> CORPORATION DESIGNATED TO ACT AS TRUSTEE

CHECK IF AN APPLICATION TO DETERMINE<br> ELIGIBILITY OF A TRUSTEE PURSUANT TO<br> SECTION 305(b)(2) ◻

THE BANK OF NEW YORK MELLON<br> TRUST COMPANY, N.A.<br> (Exact name of trustee as specified in its charter)

(Jurisdiction of incorporation<br> if not a U.S. national bank) <u>95-3571558<br> (I.R.S. employer<br> identification no.)</u> <br> <u>333 South Hope Street<br> Suite 2525<br> Los Angeles, California<br> (Address of principal executive offices)</u> <u>90071<br> (Zip code)</u>

Duke Energy Corporation<br> (Exact name of obligor as specified in its charter)

Delaware<br> (State or other jurisdiction of<br> incorporation or organization) <u>20-2777218<br> (I.R.S. employer<br> identification no.)</u> <br> <u>525 South Tryon Street<br> Charlotte, North Carolina<br> (Address of principal executive offices)</u> <u>28202<br> (Zip code)</u>

Variable Denomination Floating Rate Demand Notes<br> (Title of the indenture securities)

**1.** **General information. Furnish the following information as to the trustee:** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(a)** **Name and address of each examining or supervising authority to which it is subject.** 

---

| | | |
|:---|:---|:---|
| Name | Name | Address |
|  | Comptroller of the Currency<br> United States Department of the Treasury | Washington, DC 20219 |
|  | Federal Reserve Bank | San Francisco, CA 94105 |
|  | Federal Deposit Insurance Corporation | Washington, DC 20429 |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**(b)** **Whether it is authorized to exercise corporate trust powers.** 

Yes.

**2.** **Affiliations with Obligor.** 

**If the obligor is an affiliate of the trustee, describe each such affiliation.** 

None.

**16.** **List of Exhibits.** 

**Exhibits identified in parentheses below, on file with the Commission, are incorporated herein by reference as an exhibit hereto, pursuant to Rule 7a-29 under the Trust Indenture Act of 1939 (the "Act").**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. A copy of the articles of association of The Bank of New York Mellon Trust Company, N.A., formerly known
as The Bank of New York Trust Company, N.A. (Exhibit 1 to Form T-1 filed with Registration Statement No. 333-121948 and Exhibit 1 to Form
T-1 filed with Registration Statement No. 333-152875).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. A copy of certificate of authority of the trustee to commence business. (Exhibit 2 to Form T-1 filed with
Registration Statement No. 333-121948).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. A copy of the authorization of the trustee to exercise corporate trust powers (Exhibit 3 to Form T-1 filed
with Registration Statement No. 333-152875).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. A copy of the existing by-laws of the trustee (Exhibit 4 to Form T-1 filed with Registration Statement
No. 333-229762).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6. The consent of the trustee required by Section 321(b) of the Act (Exhibit 6 to Form T-1 filed with Registration
Statement No. 333-152875).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7. A copy of the latest report of condition of the Trustee published pursuant to law or to the requirements
of its supervising or examining authority.

SIGNATURE

Pursuant to the requirements of the Act, the trustee, The Bank of New York Mellon Trust Company, N.A., a banking association organized and existing under the laws of the United States of America, has duly caused this statement of eligibility to be signed on its behalf by the undersigned, thereunto duly authorized, all in the City of Chicago, and State of Illinois, on the 22nd day of September, 2025.

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| | | |
|:---|:---|:---|
| THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. | THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. | THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. |
| By: | /s/ Ann Dolezal | /s/ Ann Dolezal |
|  | Name: | Ann M. Dolezal |
|  | Title: | Vice President |

---

**EXHIBIT 7**

Consolidated Report of Condition of

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.

of 333 South Hope Street, Suite 2525, Los Angeles, CA 90071

At the close of business June 30, 2025, published in accordance with Federal regulatory authority instructions.

---

| | |
|:---|:---|
|  | Dollar amounts <br> in thousands |
| <u>ASSETS</u> |  |
| Cash and balances due from depository institutions: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Noninterest-bearing balances and currency and coin | 9503 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest-bearing balances | 224982 |
| Securities: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Held-to-maturity securities | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Available-for-sale debt securities | 98650 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Equity securities with readily determinable fair values not held for trading | 0 |
| Federal funds sold and securities purchased under agreements to resell: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Federal funds sold in domestic offices | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Securities purchased under agreements to resell | 0 |
| Loans and lease financing receivables: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loans and leases held for sale | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loans and leases held for investment | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;LESS: Allowance for credit losses on loans and leases | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loans and leases held for investment, net of allowance | 0 |
| Trading assets | 0 |
| Premises and fixed assets (including right-of-use assets) | 8796 |
| Other real estate owned | 0 |
| Investments in unconsolidated subsidiaries and associated companies | 0 |
| Direct and indirect investments in real estate ventures | 0 |
| Intangible assets | 856313 |
| Other assets | 127415 |
| Total assets | $1325659 |

---

---

| | |
|:---|:---|
| LIABILITIES |  |
| Deposits: |  |
| &nbsp;&nbsp;&nbsp;In domestic offices | 797 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Noninterest-bearing | 797 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest-bearing | 0 |
| Federal funds purchased and securities sold under agreements to repurchase: |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Federal funds purchased in domestic offices | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Securities sold under agreements to repurchase | 0 |
| Trading liabilities | 0 |
| Other borrowed money: |  |
| (includes mortgage indebtedness) | 0 |
| Not applicable |  |
| Not applicable |  |
| Subordinated notes and debentures | 0 |
| Other liabilities | 258686 |
| Total liabilities | 259483 |
| Not applicable |  |
| EQUITY CAPITAL |  |
| Perpetual preferred stock and related surplus | 0 |
| Common stock | 1000 |
| Surplus (exclude all surplus related to preferred stock) | 107683 |
| Not available |  |
| &nbsp;&nbsp;&nbsp;Retained earnings | 957483 |
| &nbsp;&nbsp;&nbsp;Accumulated other comprehensive income | 10 |
| Other equity capital components | 0 |
| Not available |  |
| &nbsp;&nbsp;&nbsp;Total bank equity capital | 1066176 |
| &nbsp;&nbsp;&nbsp;Noncontrolling (minority) interests in consolidated subsidiaries | 0 |
| Total equity capital | 1066176 |
| Total liabilities and equity capital | 1325659 |

---

I, Janice Shell, CFO of the above-named bank do hereby declare that the Reports of Condition and Income (including the supporting schedules) for this report date have been prepared in conformance with the instructions issued by the appropriate Federal regulatory authority and are true to the best of my knowledge and belief.

Janice Shell) CFO

We, the undersigned directors (trustees), attest to the correctness of the Report of Condition (including the supporting schedules) for this report date and declare that it has been examined by us and to the best of our knowledge and belief has been prepared in conformance with the instructions issued by the appropriate Federal regulatory authority and is true and correct.

Elizabeth Lyndon, Managing Director) <br> Kevin C. Weeks, President) Directors (Trustees) <br> Fernando A. Costa, Managing Director)

## Ex-Filing

?xml version='1.0' encoding='ASCII'? EX-FILING FEES

---

| |
|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Calculation of Filing Fee Tables**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **S-3**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Duke Energy CORP**  |

---

---

| | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Security Type**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Security Class Title**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Fee Calculation or Carry Forward Rule**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Maximum Aggregate Offering Price**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Amount of Registration Fee**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Carry Forward Form Type**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Carry Forward File Number**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Carry Forward Initial Effective Date**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward**  |
| **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** |
| Fees to be Paid |  |  |  |  |  |  |  |  |  |  |
| Fees Previously Paid |  |  |  |  |  |  |  |  |  |  |
| **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** |
| Carry Forward Securities | 1 | Debt | Variable Denomination Floating Rate Demand Notes | 415(a)(6) | $2000000000.00 |  | S-3 | 333-267693 | 09/30/2022 | $46350.00 |
|  |  |  | Total Offering Amounts: | Total Offering Amounts: | $2000000000.00  | $0.00  |  |  |  |  |
|  |  |  | Total Fees Previously Paid:  | Total Fees Previously Paid:  |  | $0.00  |  |  |  |  |
|  |  |  | Total Fee Offsets:  | Total Fee Offsets:  |  | $0.00  |  |  |  |  |
|  |  |  | Net Fee Due:  | Net Fee Due:  |  | $0.00  |  |  |  |  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Offering Note** <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <sup>1</sup> (1) This registration statement covers all investments in the Variable Denomination Floating Rate Demand Notes ("Notes") up to $4.0 billion, with fees based on the net aggregate principal amount of Notes outstanding from this offering not exceeding $2.0 billion at a particular time. Registration fees for up to $2.0 billion net aggregate principal amount of Notes were paid previously by the registrant in connection with Registration Statement Nos. 333-267693, 333-173282, 333-186991, 333-192685, 333-214303 and 333-234348, each previously filed by the registrant on Form S 3. Pursuant to Rule 415(a)(6) under the Securities Act of 1933, such fees continue to apply to the $2.0 billion net aggregate principal amount of Notes previously registered. In accordance with Rule 415(a)(6), the effectiveness of this Registration Statement shall be deemed to terminate Registration Statement No. 333-267693 previously filed by the registrant on Form S-3.

---

| | |
|:---|:---|
| | |
| **Rules 457(b) and 0-11(a)(2)** | **Rules 457(b) and 0-11(a)(2)** |
| Fee Offset Claims | N/A |
| Fee Offset Sources | N/A |
| **Rule 457(p)** | **Rule 457(p)** |
| Fee Offset Claims | N/A |
| Fee Offset Sources | N/A |

---

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Security Type**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Security Class Title**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Amount of Securities Previously Registered**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Maximum Aggregate Offering Price of Securities Previously Registered**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Form Type**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **File Number**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Initial Effective Date**  |
| N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |

---