Duke Energy issues 4.95% (2035) and 5.70% (2055) senior notes to refinance 2025 maturities

Q: What securities is Duke Energy (DUK) offering in this prospectus supplement?

Duke Energy is offering $1.0 billion of 4.95% Senior Notes due 2035 and $750 million of 5.70% Senior Notes due 2055 .

Q: How will Duke Energy use the net proceeds from the offering?

Net proceeds of approximately $1.7 billion will be used to repay at maturity $650 million of 0.90% Senior Notes due Sept 15, 2025, $500 million of 5.00% Senior Notes due Dec 8, 2025, to repay a portion of commercial paper and for general corporate purposes.

Q: When will interest on the new notes be paid and when do they mature?

Interest on both series is payable semi-annually on March 15 and September 15 , beginning March 15, 2026. The 2035 Notes mature on Sept 15, 2035 and the 2055 Notes mature on Sept 15, 2055 .

Q: Do the Notes have any collateral or sinking fund?

No. The Notes are unsecured , have no sinking fund and rank equally with Duke Energy’s other unsecured and unsubordinated indebtedness.

Q: Will the Notes trade on an exchange?

No. The Notes are a new issue with no established trading market and will not be listed on any securities exchange or included in any automated quotation system.

Q: Are there any conflicts of interest disclosed in the offering?

Yes. Certain underwriters or their affiliates may hold commercial paper or the senior notes being repaid and thus could receive proceeds of the offering.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

424B5

Rhea-AI Filing Summary

Duke Energy Corporation is offering $1.75 billion of senior unsecured notes in two series: $1.0 billion of 4.95% notes due September 15, 2035 and $750 million of 5.70% notes due September 15, 2055. Interest is payable semi-annually beginning March 15, 2026. Net proceeds are expected to be approximately $1.7 billion and will be used to repay $650 million of 0.90% senior notes maturing September 15, 2025, $500 million of 5.00% senior notes maturing December 8, 2025, to repay a portion of commercial paper and for general corporate purposes. The notes are unsecured, rank pari passu with other unsecured indebtedness, have no sinking fund and will be issued in book-entry form through DTC.

Positive

Proceeds allocation is explicit: approximately $1.7 billion net proceeds will repay $650 million and $500 million of near-term senior notes and reduce commercial paper, lowering short-term refinancing pressure
Extended maturities (2035 and 2055) shift debt out beyond the near-term maturities being repaid
Full disclosure of ranking, use of proceeds, underwriting conflicts and book-entry arrangements is provided

Negative

Unsecured obligations — the Notes are direct, unsecured and unsubordinated obligations and are structurally subordinated to subsidiary liabilities
No sinking fund and no listing — there is no sinking fund and the Notes will not be listed on any exchange, which may limit liquidity
Potential conflicts of interest — certain underwriters or affiliates may hold debt being repaid and would receive proceeds, as disclosed

Insights

TL;DR: Duke is refinancing near-term maturities and commercial paper with a $1.75B senior note issuance, increasing medium- and long-term debt outstanding.

The offering creates two new series totaling $1.75 billion with coupons of 4.95% (2035) and 5.70% (2055). Net proceeds (~$1.7 billion) will retire specified 2025 maturities totaling $1.15 billion and reduce short-term commercial paper balances; at August 21, 2025 commercial paper outstanding was ~$3.0 billion at a ~4.54% weighted average rate. The notes are unsecured, rank equally with existing unsecured debt, and are structurally subordinated to subsidiary liabilities. The lack of a listing and initial absence of an established trading market may limit secondary-market liquidity.

TL;DR: The issuance is a routine corporate refinancing with specified use of proceeds and standard market protections and call provisions.

The prospectus specifies optional redemption mechanics tied to Treasury rates, no sinking fund, and fungibility provisions for additional issuances. The Indenture contains no limitation on additional indebtedness under it. The document discloses potential conflicts of interest where underwriters or affiliates may hold debt being repaid. These disclosures are standard and provide investors with information on ranking, trustee relationships, and book-entry procedures.

09/09/2025 - 04:23 PM

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Filed Pursuant to Rule 424(b)(5)
Registration No. 333-267583

PROSPECTUS SUPPLEMENT
(To Prospectus dated September 23, 2022)

$1,750,000,000

$1,000,000,000 4.95% Senior Notes due 2035
$750,000,000 5.70% Senior Notes due 2055

Duke Energy Corporation is offering $1,750,000,000 aggregate principal amount of Senior Notes in two new series. We are offering (i) $1,000,000,000 aggregate principal amount of 4.95% Senior Notes due 2035 (the “2035 Notes”) and (ii) $750,000,000 aggregate principal amount of 5.70% Senior Notes due 2055 (the “2055 Notes” and together with the 2035 Notes, the “Notes”).

The per annum interest rate on the 2035 Notes will be 4.95% and the per annum interest rate on the 2055 Notes will be 5.70%. We will pay interest on the 2035 Notes and the 2055 Notes semi-annually in arrears on March 15 and September 15 of each year, beginning on March 15, 2026.

The 2035 Notes will mature as to principal on September 15, 2035 and the 2055 Notes will mature as to principal on September 15, 2055.

We may redeem the Notes of any series at our option at any time and from time to time, in whole or in part, as described in this prospectus supplement under the caption “Description of the Notes — Optional Redemption.” The Notes will not have the benefit of any sinking fund. The Notes will be our direct, unsecured and unsubordinated obligations, ranking equally in priority with all of our existing and future unsecured and unsubordinated indebtedness and senior in right of payment to all of our existing and future subordinated debt.

The Notes of each series are a new issue of securities with no established trading market. The Notes will not be listed on any securities exchange or included in any automated quotation system. Please read the information provided under the caption “Description of the Notes” in this prospectus supplement and “Description of Debt Securities” in the accompanying prospectus for a more detailed description of the Notes.

Investing in the Notes involves risks. See “Risk Factors” beginning on page S-7 of this prospectus supplement.

	Price to the Public(1)			Underwriting Discount(2)			Proceeds to Duke Energy Corporation Before Expenses
Per 2035 Note			99.672%			0.650%			99.022%
Total 2035 Notes		$	996,720,000		$	6,500,000		$	990,220,000
Per 2055 Note			99.757%			0.875%			98.882%
Total 2055 Notes		$	748,177,500		$	6,562,500		$	741,615,000

(1)

Plus accrued interest from September 11, 2025, if settlement occurs after that date.

(2)

The underwriters have agreed to make a payment to us in an amount equal to $2,937,500, including in respect of expenses incurred by us in connection with these offerings. See “Underwriting (Conflicts of Interest).”

Neither the Securities and Exchange Commission (the “SEC”) nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus supplement or the accompanying prospectus. Any representation to the contrary is a criminal offense.

We expect the Notes to be ready for delivery only in book-entry form through the facilities of The Depository Trust Company (“DTC”) for the accounts of its participants, including Clearstream Banking S.A. (“Clearstream, Luxembourg”) and Euroclear Bank SA/NV, as operator of the Euroclear System (“Euroclear System”) on or about September 11, 2025.

Joint Book-Running Managers

Citigroup

Goldman Sachs & Co. LLC

Mizuho

MUFG

PNC Capital Markets LLC

Truist Securities

Wells Fargo Securities

Barclays

BMO Capital Markets

BofA Securities

US Bancorp

Co-Managers

	Loop Capital Markets
	BNY Capital Markets			Huntington Capital Markets			Regions Securities LLC			WauBank Securities LLC

The date of this prospectus supplement is September 8, 2025.

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You should rely only on the information contained in or incorporated by reference in this prospectus supplement, the accompanying prospectus and any free writing prospectus authorized by us. We have not, and the underwriters have not, authorized anyone to provide you with information that is different. If anyone provides you with different or inconsistent information, you should not rely on it. We are not, and the underwriters are not, making an offer to sell these securities in any jurisdiction where the offer is not permitted. You should not assume that the information contained in or incorporated by reference in this prospectus supplement, the accompanying prospectus or any free writing prospectus authorized by us is accurate as of any date other than the date of the document containing the information or such other date as may be specified therein. Our business, financial condition, liquidity, results of operations and prospects may have changed since those respective dates.

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Prospectus Supplement

	Page
About this Prospectus Supplement		S-1
Prospectus Supplement Summary		S-3
Risk Factors		S-7
Cautionary Statement Regarding Forward-Looking Information		S-8
Use of Proceeds		S-11
Description of the Notes		S-12
Certain U.S. Federal Income Tax Considerations for Non-U.S. Holders		S-16
Book-Entry System		S-19
Underwriting (Conflicts of Interest)		S-23
Legal Matters		S-29
Where You Can Find More Information		S-29

Prospectus

	Page
References to Additional Information		ii
About this Prospectus		ii
Forward-Looking Statements		ii
The Company		1
Risk Factors		1
Use of Proceeds		2
Description of Common Stock		2
Description of Preferred Stock		2
Description of Depositary Shares		3
Description of Stock Purchase Contracts and Stock Purchase Units		4
Description of Debt Securities		4
Plan of Distribution		10
Experts		11
Validity of the Securities		11
Where You Can Find More Information		11

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ABOUT THIS PROSPECTUS SUPPLEMENT

This document is in two parts. The first part is this prospectus supplement, which describes the specific terms of these offerings. The second part, the accompanying prospectus, gives more general information, some of which does not apply to these offerings.

If the description of the offerings varies between this prospectus supplement and the accompanying prospectus, you should rely on the information contained in or incorporated by reference in this prospectus supplement.

It is important for you to read and consider all information contained in or incorporated by reference in this prospectus supplement and the accompanying prospectus in making your investment decision. You should also read and consider the information contained in the documents to which we have referred you in “Where You Can Find More Information” in this prospectus supplement and the accompanying prospectus.

Unless we have indicated otherwise, or the context otherwise requires, references in this prospectus supplement and the accompanying prospectus to “Duke Energy,” “we,” “us” and “our” or similar terms are to Duke Energy Corporation and its subsidiaries.

Notice to Prospective Investors in the European Economic Area

None of this prospectus supplement, the accompanying prospectus or any related free writing prospectus is a prospectus for the purposes of Regulation (EU) 2017/1129, as amended (the “Prospectus Regulation”). This prospectus supplement, the accompanying prospectus and any related free writing prospectus have been prepared on the basis that any offer of Notes in any Member State of the European Economic Area (the “EEA”) will only be made to a legal entity which is a qualified investor under the Prospectus Regulation (each, an “EEA Qualified Investor”). Accordingly, any person making or intending to make an offer in any Member State of the EEA of Notes which are the subject of the offering contemplated in this prospectus supplement, the accompanying prospectus and any related free writing prospectus may only do so with respect to EEA Qualified Investors. Neither Duke Energy Corporation nor the underwriters have authorized, nor do they authorize, the making of any offer of Notes in the EEA other than to EEA Qualified Investors.

PROHIBITION OF SALES TO EEA RETAIL INVESTORS — The Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the EEA. For these purposes, a “retail investor” means a person who is one (or more) of: (i) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU, as amended (“MiFID II”); or (ii) a customer within the meaning of Directive (EU) 2016/97, as amended (the “Insurance Distribution Directive”), where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (iii) not an EEA Qualified Investor. Consequently, no key information document required by Regulation (EU) No 1286/2014, as amended (the “PRIIPs Regulation”) for offering or selling the Notes or otherwise making them available to retail investors in the EEA has been prepared and therefore offering or selling the Notes or otherwise making them available to any retail investor in the EEA may be unlawful under the PRIIPs Regulation.

Notice to Prospective Investors in the United Kingdom

None of this prospectus supplement, the accompanying prospectus or any related free writing prospectus is a prospectus for the purposes of Regulation (EU) 2017/1129 as it forms part of domestic law in the United Kingdom (the “UK Prospectus Regulation”). This prospectus supplement, the accompanying prospectus and any related free writing prospectus have been prepared on the basis that any offer of Notes in the United Kingdom will only be made to a legal entity which is a qualified investor under the UK Prospectus Regulation (each, a “UK Qualified Investor”). Accordingly, any person making or intending to make an offer in the United Kingdom of Notes which are the subject of the offering contemplated in this prospectus supplement, the accompanying prospectus and any related free writing prospectus may only do so with respect to UK Qualified Investors. Neither Duke Energy Corporation nor the underwriters have authorized, nor do they authorize, the making of any offer of Notes in the United Kingdom other than to UK Qualified Investors.

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PROHIBITION OF SALES TO UNITED KINGDOM RETAIL INVESTORS — The Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the United Kingdom. For these purposes, a “retail investor” means a person who is one (or more) of: (i) a retail client, as defined in point (8) of Article 2 of Regulation (EU) No 2017/565 as it forms part of domestic law in the United Kingdom; or (ii) a customer within the meaning of the provisions of the United Kingdom’s Financial Services and Markets Act 2000, as amended (the “FSMA”) and any rules or regulations made under the FSMA to implement Directive (EU) 2016/97, where that customer would not qualify as a professional client, as defined in point (8) of Article 2(1) of Regulation (EU) No 600/2014 as it forms part of domestic law in the United Kingdom (“UK MiFIR”); or (iii) not a UK Qualified Investor. Consequently, no key information document required by Regulation (EU) No 1286/2014 as it forms part of domestic law in the United Kingdom (the “UK PRIIPs Regulation”) for offering or selling the Notes or otherwise making them available to retail investors in the United Kingdom has been prepared and therefore offering or selling the Notes or otherwise making them available to any retail investor in the United Kingdom may be unlawful under the UK PRIIPs Regulation.

The communication of this prospectus supplement, the accompanying prospectus, any related free writing prospectus and any other document or materials relating to the issue of the Notes offered hereby is not being made, and this prospectus supplement, the accompanying prospectus, any related free writing prospectus and such other documents and/or materials have not been approved, by an authorized person for the purposes of Section 21 of the FSMA. Accordingly, this prospectus supplement, the accompanying prospectus, any related free writing prospectus and such other documents and/or materials are not being distributed to, and must not be passed on to, the general public in the United Kingdom. This prospectus supplement, the accompanying prospectus, any related free writing prospectus and such other documents and/or materials are for distribution only to persons who (i) have professional experience in matters relating to investments and who fall within the definition of investment professionals (as defined in Article 19(5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the “Financial Promotion Order”)), (ii) fall within Article 49(2)(a) to (d) of the Financial Promotion Order, (iii) are outside the United Kingdom, or (iv) are other persons to whom it may otherwise lawfully be communicated or distributed under the Financial Promotion Order (all such persons together being referred to as “relevant persons”). This prospectus supplement, the accompanying prospectus, any related free writing prospectus and any such other documents and/ or materials are directed only at relevant persons and must not be acted on or relied on by persons who are not relevant persons. Any investment or investment activity to which this prospectus supplement, the accompanying prospectus, any related free writing prospectus and any such other documents and/or materials relate will be engaged in only with relevant persons. Any person in the United Kingdom that is not a relevant person should not act or rely on this prospectus supplement, the accompanying prospectus, any related free writing prospectus or any other documents and/or materials relating to the issue of the Notes offered hereby or any of their contents.

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PROSPECTUS SUPPLEMENT SUMMARY

The following summary is qualified in its entirety by, and should be read together with, the more detailed information that is included elsewhere in this prospectus supplement and the accompanying prospectus, as well as the information that is incorporated or deemed to be incorporated by reference in this prospectus supplement and the accompanying prospectus. See “Where You Can Find More Information” in this prospectus supplement for information about how you can obtain the information that is incorporated or deemed to be incorporated by reference in this prospectus supplement and the accompanying prospectus. Investing in the Notes involves risks. See “Risk Factors” in this prospectus supplement.

Duke Energy Corporation

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 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 28202-1803 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.”

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The Offerings

Issuer

Duke Energy Corporation

Securities Offered

We are offering $1,000,000,000 aggregate principal amount of the 2035 Notes and $750,000,000 aggregate principal amount of the 2055 Notes.

Maturity Dates

The 2035 Notes will mature on September 15, 2035.

The 2055 Notes will mature on September 15, 2055.

Interest Rates

The per annum interest rate on the 2035 Notes will be 4.95%.

The per annum interest rate on the 2055 Notes will be 5.70%.

Interest Payment Dates

Interest on the 2035 Notes and the 2055 Notes will be payable semi-annually in arrears on March 15 and September 15 of each year, beginning on March 15, 2026.

Ranking

The Notes will be two new series of our direct, unsecured and unsubordinated obligations, ranking equally in priority with all of our existing and future unsecured and unsubordinated indebtedness and senior in right of payment to all of our existing and future subordinated debt. At June 30, 2025, we 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. Our Indenture (as defined herein) contains no restrictions on the amount of additional indebtedness that we may issue under it.

The Notes will be structurally subordinated to all liabilities and any preferred stock of our subsidiaries. At June 30, 2025, our subsidiaries had approximately $57.8 billion of indebtedness, payment upon approximately $650 million of which is guaranteed by Duke Energy Corporation. All of such guarantees were granted to the holders of certain unsecured debt of our subsidiary Duke Energy Carolinas, LLC, in connection with changes in our corporate structure relating to the closing of our merger with Cinergy Corp. in 2006.

Further Issuance

We may from time to time, without the consent of existing holders, create and issue further notes having the same terms and conditions as the 2035 Notes or the 2055 Notes being offered hereby in all respects, except for the issue date, the price to the public and, if applicable, the initial interest accrual date and the first interest payment date; provided, however, that any such additional notes must be fungible with the then outstanding 2035 Notes or the then outstanding 2055 Notes, as the case may be, for U.S. federal income tax purposes, and any such additional notes, together with the then outstanding notes of such series, will be taken to constitute the same series of notes under the Indenture.

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Optional Redemption

Prior to June 15, 2035 (the date that is three months prior to the maturity date of the 2035 Notes (the “2035 Par Call Date”)), we may redeem the 2035 Notes at our option, in whole or in part, at any time and from time to time, on any date, at a redemption price (expressed as a percentage of principal amount and rounded to three decimal places) equal to the greater of:

•

(a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date (assuming the 2035 Notes matured on the 2035 Par Call Date) on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined herein) applicable to the 2035 Notes plus 15 basis points less (b) interest accrued to the redemption date; and

•

100% of the principal amount of the 2035 Notes to be redeemed,

plus, in either case, accrued and unpaid interest thereon to, but excluding, the redemption date.

On or after the 2035 Par Call Date, we may redeem the 2035 Notes at our option, in whole or in part, at any time and from time to time, at a redemption price equal to 100% of the principal amount of the 2035 Notes to be redeemed plus accrued and unpaid interest thereon to, but excluding, the redemption date.

Prior to March 15, 2055 (the date that is six months prior to the maturity date of the 2055 Notes (the “2055 Par Call Date”)), we may redeem the 2055 Notes at our option, in whole or in part, at any time and from time to time, on any date, at a redemption price (expressed as a percentage of principal amount and rounded to three decimal places) equal to the greater of:

•

(a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date (assuming the 2055 Notes matured on the 2055 Par Call Date) on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate applicable to the 2055 Notes plus 20 basis points less (b) interest accrued to the redemption date; and

•

100% of the principal amount of the 2055 Notes to be redeemed,

plus, in either case, accrued and unpaid interest thereon to, but excluding, the redemption date.

On or after the 2055 Par Call Date, we may redeem the 2055 Notes at our option, in whole or in part, at any time and from time to time, at a redemption price equal to 100% of the principal amount of the 2055 Notes to be redeemed plus accrued and unpaid interest thereon to, but excluding, the redemption date. See “Description of the Notes — Optional Redemption.”

No Sinking Fund

There will not be any sinking fund for the Notes.

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Use of Proceeds

The aggregate net proceeds from the sale of the Notes, after deducting the respective underwriting discounts and related offering expenses and giving effect to the underwriters’ payment to us, will be approximately $1.7 billion. We intend to use the aggregate net proceeds from the sale of the Notes (i) to repay at maturity $650 million aggregate principal amount of our outstanding 0.90% Senior Notes due September 15, 2025 (the “0.90% Senior Notes”), (ii) to repay at maturity $500 million aggregate principal amount of our outstanding 5.000% Senior Notes due December 8, 2025 (the “5.000% Senior Notes”), (iii) to repay a portion of our outstanding commercial paper and (iv) for general corporate purposes. At August 21, 2025, we had approximately $3.0 billion of commercial paper outstanding with a weighted average interest rate of approximately 4.54% per year. We issue commercial paper from time to time to fund our working capital and other needs and those of our subsidiaries. A portion of the aggregate net proceeds may be invested temporarily in short-term interest-bearing accounts, securities or similar investments until they are used for their intended purposes. See “Use of Proceeds.”

We expect that the sale of each series of the Notes will take place concurrently. However, the sales of the 2035 Notes and the 2055 Notes are not conditioned upon each other, and we may consummate the sales of one or more series of Notes and not any of the other series of Notes, or consummate the sales at different times.

Conflicts of Interest

Certain of the underwriters or their affiliates may own our outstanding commercial paper, some of the 0.90% Senior Notes or some of the 5.000% Senior Notes described above, the repayment of which will be funded with a portion of the aggregate net proceeds from the sale of the Notes. See “Underwriting (Conflicts of Interest) — Conflicts of Interest.”

Book-Entry

Each series of the Notes will be represented by one or more global securities registered in the name of and deposited with or on behalf of DTC or its nominee. Beneficial interests in each series of the Notes will be represented through book-entry accounts of financial institutions acting on behalf of beneficial owners as direct and indirect participants in DTC. Investors may elect to hold interests in the global securities through either DTC in the United States or Clearstream, Luxembourg or the Euroclear System, in Europe if they are participants in those systems, or indirectly through organizations which are participants in those systems. This means that you will not receive a certificate for your Notes and Notes will not be registered in your name, except under certain limited circumstances described under the caption “Book-Entry System.”

Trustee

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

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RISK FACTORS

You should carefully consider the risk factors in our Annual Report on Form 10-K for the year ended December 31, 2024 and our Quarterly Reports on Form 10-Q for the quarterly periods ended March 31, 2025 and June 30, 2025 which have been filed with the SEC and are incorporated by reference in this prospectus supplement and the accompanying prospectus, as well as all of the other information included or incorporated by reference in this prospectus supplement and the accompanying prospectus, before making an investment decision.

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CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION

This prospectus supplement, the accompanying prospectus, and the information incorporated by reference herein and therein, include forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”) and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements are based on management’s beliefs and assumptions and can often be 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. These factors include, but are not limited to:

•

The ability to implement our business strategy, including meeting forecasted load growth demand, grid and fleet modernization objectives, and our carbon emission reduction goals, while balancing customer reliability and affordability;

•

State, federal and foreign legislative and regulatory initiatives, including costs of compliance with existing and future environmental requirements and/or uncertainty of applicability or changes to such legislative and regulatory initiatives, including those related to climate change, as well as rulings that affect cost and investment recovery or have an impact on rate structures or market prices;

•

The extent and timing of costs and liabilities to comply with federal and state laws, regulations and legal requirements related to coal ash remediation, including amounts for required closure of certain ash impoundments, are uncertain and difficult to estimate;

•

The ability to timely recover eligible costs, including amounts associated with coal ash impoundment retirement obligations, asset retirement and construction costs related to carbon emissions reductions, and costs related to significant weather events, and to earn an adequate return on investment through rate case proceedings and the regulatory process;

•

The costs of decommissioning nuclear facilities could prove to be more extensive than amounts estimated and all costs may not be fully recoverable through the regulatory process;

•

The impact of extraordinary external events, such as a global pandemic or military conflict, and their collateral consequences, including the disruption of global supply chains or the economic activity in our service territories;

•

Costs and effects of legal and administrative proceedings, settlements, investigations and claims;

•

Industrial, commercial and residential decline in service territories or customer bases resulting from sustained downturns of the economy, storm damage, reduced customer usage due to cost pressures from inflation, tariffs, or fuel costs, worsening economic health of our service territories, reductions in customer usage patterns, or lower than anticipated load growth, particularly if usage of electricity by data centers is less than currently projected, energy efficiency efforts, natural gas building and appliance electrification, and use of alternative energy sources, such as self-generation and distributed generation technologies;

•

Federal and state regulations, laws and other efforts designed to promote and expand the use of energy efficiency measures, natural gas electrification, and distributed generation technologies, such as private solar and battery storage, in Duke Energy service territories could result in a reduced number of customers, excess generation resources as well as stranded costs;

•

Advancements in technology, including artificial intelligence;

•

Additional competition in electric and natural gas markets and continued industry consolidation;

•

The influence of weather and other natural phenomena on operations, financial position, and cash flows, including the economic, operational and other effects of severe storms, hurricanes, droughts, earthquakes and tornadoes, including extreme weather associated with climate change;

•

Changing or conflicting investor, customer and other stakeholder expectations and demands, particularly regarding environmental, social and governance matters and costs related thereto;

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•

The ability to successfully operate electric generating facilities and deliver electricity to customers including direct or indirect effects to the Company resulting from an incident that affects the United States electric grid or generating resources;

•

Operational interruptions to our natural gas distribution and transmission activities;

•

The availability of adequate interstate pipeline transportation capacity and natural gas supply;

•

The impact on facilities and business from a terrorist or other attack, war, vandalism, cybersecurity threats, data security breaches, operational events, information technology failures or other catastrophic events, such as severe storms, fires, explosions, pandemic health events or other similar occurrences;

•

The inherent risks associated with the operation of nuclear facilities, including environmental, health, safety, regulatory and financial risks, including the financial stability of third-party service providers;

•

The timing and extent of changes in commodity prices, including any impact from increased tariffs and interest rates, and the ability to timely recover such costs through the regulatory process, where appropriate, and their impact on liquidity positions and the value of underlying assets;

•

The results of financing efforts, including the ability to obtain financing on favorable terms, which can be affected by various factors, including credit ratings, interest rate fluctuations, compliance with debt covenants and conditions, an individual utility’s generation portfolio, and general market and economic conditions;

•

Credit ratings of Duke Energy or its subsidiaries may be different from what is expected;

•

Declines in the market prices of equity and fixed-income securities and resultant cash funding requirements for defined benefit pension plans, other post-retirement benefit plans and nuclear decommissioning trust funds;

•

Construction and development risks associated with the completion of Duke Energy’s or its subsidiaries capital investment projects, including risks related to financing, timing and receipt of necessary regulatory approvals, obtaining and complying with terms of permits, meeting construction budgets and schedules and satisfying operating and environmental performance standards, as well as the ability to recover costs from customers in a timely manner, or at all;

•

Changes in rules for regional transmission organizations, including changes in rate designs and new and evolving capacity markets, and risks related to obligations created by the default of other participants;

•

The ability to control operation and maintenance costs;

•

The level of creditworthiness of counterparties to transactions;

•

The ability to obtain adequate insurance at acceptable costs and recover on claims made;

•

Employee workforce factors, including the potential inability to attract and retain key personnel;

•

The ability of our subsidiaries to pay dividends or distributions to Duke Energy;

•

The performance of projects undertaken by our businesses and the success of efforts to invest in and develop new opportunities;

•

The effect of accounting and reporting pronouncements issued periodically by accounting standard-setting bodies and the SEC;

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The impact of United States tax legislation to our financial condition, results of operations or cash flows and our credit ratings;

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The impacts from potential impairments of goodwill or investment carrying values;

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Asset or business acquisitions and dispositions may not yield the anticipated benefits, which could adversely affect our financial condition, credit metrics or ability to execute strategic and capital plans; and

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•

The actions of activist shareholders could disrupt our operations, impact our ability to execute on our business strategy, or cause fluctuations in the trading price of our common stock.

Additional risks and uncertainties are identified and discussed in our reports filed with the SEC and are available at the SEC’s website. In light of these risks, uncertainties and assumptions, the events described in the forward-looking statements included or incorporated by reference in this prospectus supplement and the accompanying 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.

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USE OF PROCEEDS

The aggregate net proceeds from the sale of the Notes, after deducting the respective underwriting discounts and related offering expenses and giving effect to the underwriters’ payment to us, will be approximately $1.7 billion. We intend to use the aggregate net proceeds from the sale of the Notes (i) to repay at maturity $650 million aggregate principal amount of our outstanding 0.90% Senior Notes, (ii) to repay at maturity $500 million aggregate principal amount of our outstanding 5.000% Senior Notes, (iii) to repay a portion of our outstanding commercial paper and (iv) for general corporate purposes. At August 21, 2025, we had approximately $3.0 billion of commercial paper outstanding with a weighted average interest rate of approximately 4.54% per year. We issue commercial paper from time to time to fund our working capital and other needs and those of our subsidiaries. A portion of the aggregate net proceeds may be invested temporarily in short-term interest-bearing accounts, securities or similar investments until they are used for their intended purposes.

Certain of the underwriters or their affiliates may own our outstanding commercial paper, some of the 0.90% Senior Notes or some of the 5.000% Senior Notes described above, the repayment of each of which will be funded with a portion of the aggregate net proceeds from the sale of the Notes. See “Underwriting (Conflicts of Interest) — Conflicts of Interest.”

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DESCRIPTION OF THE NOTES

General

The following description of the terms of the Notes summarizes certain general terms that will apply to the Notes. The Notes will be issued as two new series of senior debt securities under an Indenture between us and The Bank of New York Mellon Trust Company, N.A. (formerly known as The Bank of New York Trust Company, N.A.), as Trustee, dated as of June 3, 2008, as supplemented from time to time, including by the Thirty-fifth Supplemental Indenture, dated as of September 11, 2025, relating to the Notes, collectively referred to as the “Indenture.”

Please read the following information concerning the Notes in conjunction with the statements under “Description of Debt Securities” in the accompanying prospectus, which the following information supplements and, in the event of any inconsistencies, supersedes. Capitalized terms not defined in this prospectus supplement are used as defined in the Indenture or as otherwise provided in the accompanying prospectus.

The Notes are issuable in denominations of $2,000 or any integral multiple of $1,000 in excess thereof.

The 2035 Notes will be issued in an initial aggregate principal amount of $1,000,000,000 and the 2055 Notes will be issued in an initial aggregate principal amount of $750,000,000.

As used in this prospectus supplement, “business day” means, with respect to the Notes, any day other than a Saturday or Sunday that is neither a legal holiday in New York, New York nor a day on which banking institutions in New York, New York are authorized or required by law, regulation or executive order to close, or a day on which the Corporate Trust Office is closed for business.

Ranking

The Notes will be our direct, unsecured and unsubordinated obligations, ranking equally in priority with all of our existing and future unsecured and unsubordinated indebtedness and senior in right of payment to all of our existing and future subordinated debt. At June 30, 2025, we 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. The Indenture contains no restrictions on the amount of additional indebtedness that we may issue under it.

Maturity, Interest and Payment

The 2035 Notes will mature on September 15, 2035 and will bear interest at a rate of 4.95% per annum from September 11, 2025 or from the most recent interest payment date to which interest on the 2035 Notes has been paid or duly provided for.

The 2055 Notes will mature on September 15, 2055 and will bear interest at a rate of 5.70% per annum from September 11, 2025 or from the most recent interest payment date to which interest on the 2055 Notes has been paid or duly provided for.

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Interest on the 2035 Notes and the 2055 Notes shall be payable semi-annually in arrears on March 15 and September 15 of each year, commencing on March 15, 2026.

If an interest payment date falls on a day that is not a business day, interest will be payable on the next succeeding business day (and without any interest or payment in respect of any such delay) with the same force and effect as if made on such interest payment date. If a due date for the payment of interest or principal on the Notes falls on a day that is not a business day, then the payment will be made on the next succeeding business day, and no interest will accrue on the amounts payable for the period from and after the original due date and until the next business day. Interest will be paid to the person in whose name each Note is registered at the close of business on the record date for the applicable interest payment date, which will be the close of business on (i) the business day immediately preceding such interest payment date so long as all of the Notes of such series remain in book-entry only form or (ii) the fifteenth calendar day next preceding such interest payment date (whether or not a business day) if any of the Notes of such series do not remain in book-entry only form. Interest on the Notes will be calculated on the basis of a 360-day year, consisting of twelve 30-day months.

Optional Redemption

2035 Notes

•

(a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date (assuming the 2035 Notes matured on the 2035 Par Call Date) on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate applicable to the 2035 Notes plus 15 basis points less (b) interest accrued to the redemption date; and

•

100% of the principal amount of the 2035 Notes to be redeemed,

plus, in either case, accrued and unpaid interest thereon to, but excluding, the redemption date.

2055 Notes

•

100% of the principal amount of the 2055 Notes to be redeemed,

plus, in either case, accrued and unpaid interest thereon to, but excluding, the redemption date.

For purposes of these optional redemption provisions, the following term has the following meaning:

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“Treasury Rate” means, with respect to any redemption date for the 2035 Notes or the 2055 Notes, as applicable, the yield determined by us in accordance with the following two paragraphs.

The Treasury Rate shall be determined by us after 4:15 p.m., New York City time (or after such time as yields on U.S. government securities are posted daily by the Board of Governors of the Federal Reserve System), on the third business day preceding the redemption date based upon the yield or yields for the most recent day that appear after such time on such day in the most recent statistical release published by the Board of Governors of the Federal Reserve System designated as “Selected Interest Rates (Daily) — H.15” (or any successor designation or publication) (“H.15”) under the caption “U.S. government securities — Treasury constant maturities — Nominal” (or any successor caption or heading) (“H.15 TCM”). In determining the Treasury Rate, we shall select, as applicable:

•

the yield for the Treasury constant maturity on H.15 exactly equal to the period from the applicable redemption date to the 2035 Par Call Date or the 2055 Par Call Date, as applicable (the “Remaining Life”); or

•

if there is no such Treasury constant maturity on H.15 exactly equal to the applicable Remaining Life, the two yields — one yield corresponding to the Treasury constant maturity on H.15 immediately shorter than and one yield corresponding to the Treasury constant maturity on H.15 immediately longer than such Remaining Life — and shall interpolate to the 2035 Par Call Date or the 2055 Par Call Date, as applicable, on a straight-line basis (using the actual number of days) using such yields and rounding the result to three decimal places; or

•

if there is no such Treasury constant maturity on H.15 shorter than or longer than the applicable Remaining Life, the yield for the single Treasury constant maturity on H.15 closest to such Remaining Life. For purposes of this clause, the applicable Treasury constant maturity or maturities on H.15 shall be deemed to have a maturity date equal to the relevant number of months or years, as applicable, of such Treasury constant maturity from the redemption date.

If on the third business day preceding the redemption date H.15 TCM is no longer published, we shall calculate the Treasury Rate based on the rate per annum equal to the semi-annual equivalent yield to maturity at 11:00 a.m., New York City time, on the second business day preceding such redemption date of the United States Treasury security maturing on, or with a maturity that is closest to, the 2035 Par Call Date or the 2055 Par Call Date, as applicable. If there is no United States Treasury security maturing on the 2035 Par Call Date or the 2055 Par Call Date, as applicable, but there are two or more United States Treasury securities with a maturity date equally distant from the 2035 Par Call Date or the 2055 Par Call Date, as applicable, one with a maturity date preceding such 2035 Par Call Date or the 2055 Par Call Date, as applicable, and one with a maturity date following such 2035 Par Call Date or the 2055 Par Call Date, as applicable, we shall select the United States Treasury security with a maturity date preceding the 2035 Par Call Date or the 2055 Par Call Date, as applicable. If there are two or more United States Treasury securities maturing on the 2035 Par Call Date or the 2055 Par Call Date, as applicable, or two or more United States Treasury securities meeting the criteria of the preceding sentence, we shall select from among these two or more United States Treasury securities the United States Treasury security that is trading closest to par based upon the average of the bid and asked prices for such United States Treasury securities at 11:00 a.m., New York City time. In determining the Treasury Rate in accordance with the terms of this paragraph, the semi-annual yield to maturity of the applicable United States Treasury security shall be based upon the average of the bid and asked prices (expressed as a percentage of principal amount) at 11:00 a.m., New York City time, of such United States Treasury security, and rounded to three decimal places.

Our actions and determinations in determining the redemption price shall be conclusive and binding for all purposes, absent manifest error.

The Trustee shall have no obligation or duty whatsoever to determine, or to verify our calculations of, the redemption price.

Redemption Procedures

We will provide not less than 10 nor more than 60 days’ notice mailed (or, as long as the Notes of such series are represented by one or more global securities, transmitted in accordance with DTC’s procedures)

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to each registered holder of the Notes of such series to be redeemed. If the redemption notice is given and funds deposited as required, then interest will cease to accrue from and after the redemption date on the Notes of such series or portions of such Notes called for redemption. In the event that any redemption date is not a business day, we will pay the redemption price on the next business day without any interest or other payment due to the delay. If less than all of the Notes of any series are being redeemed, the Notes or portions of the Notes of such series being redeemed shall be selected for redemption in accordance with DTC’s standard procedures.

Sinking Fund

There is no provision for a sinking fund applicable to the Notes.

Reports

We will provide the Trustee any information, documents or reports required to be filed by us with the SEC under Section 13 or Section 15(d) of the Exchange Act within 15 days after the same is filed with the SEC. See “Where You Can Find More Information.”

Concerning the Trustee

The Bank of New York Mellon Trust Company, N.A. is the Trustee. We and some of our affiliates have banking relationships with The Bank of New York Mellon Trust Company, N.A. and its affiliates. The Bank of New York Mellon Trust Company, N.A. or its affiliate also serves as trustee or agent under other indentures and agreements pursuant to which our securities and securities of some of our affiliates are outstanding. BNY Mellon Capital Markets, LLC, one of the underwriters participating in the offerings, is an affiliate of the Trustee.

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CERTAIN U.S. FEDERAL INCOME TAX CONSIDERATIONS FOR NON-U.S. HOLDERS

The following discussion summarizes certain U.S. federal income tax considerations relevant to the acquisition, ownership and disposition of the Notes, and does not purport to be a complete analysis of all potential U.S. federal income tax considerations. This discussion only applies to Notes that are held as capital assets, within the meaning of Section 1221 of the Internal Revenue Code of 1986, as amended (the “Code”), and that are purchased in the initial offering at the initial offering price by Non-U.S. Holders (as defined below).

This summary is based on the Code, administrative pronouncements, judicial decisions and regulations of the Treasury Department, changes to any of which subsequent to the date of this prospectus supplement may affect the tax consequences described herein. This discussion does not describe all of the U.S. federal income tax considerations that may be relevant to Non-U.S. Holders in light of their particular circumstances or to Non-U.S. Holders subject to special rules, such as certain financial institutions, tax-exempt organizations, insurance companies, traders or dealers in securities or commodities, persons holding Notes as part of a hedge or other integrated transaction, accrual method taxpayers subject to special tax accounting rules as a result of their use of certain financial statements under Section 451(b) of the Code, or certain former citizens or residents of the United States. This discussion does not address any U.S. federal income tax consequences for U.S. taxpayers who purchase Notes. Persons considering the purchase of Notes are urged to consult their tax advisors with regard to the application of the U.S. federal income tax laws to their particular situations as well as any tax consequences arising under the laws of any state, local or foreign taxing jurisdiction. Furthermore, this discussion does not describe the effect of U.S. federal estate and gift tax laws or the effect of any applicable foreign, state or local laws.

We have not and will not seek any rulings or opinions from the Internal Revenue Service (the “IRS”) with respect to the matters discussed below. There can be no assurance that the IRS will not take a different position concerning the tax consequences of the acquisition, ownership or disposition of the Notes or that any such position would not be sustained.

Prospective investors should consult their own tax advisors with regard to the application of the U.S. federal income tax considerations discussed below to their particular situations as well as the application of any state, local, foreign or other tax laws, including gift and estate tax laws.

For purposes of this summary, a “Non-U.S. Holder” means a beneficial owner of a Note that, for U.S. federal income tax purposes, is neither a partnership (including an entity or arrangement treated as a partnership for U.S. federal income tax purposes) nor (i) an individual that is a citizen or resident of the United States; (ii) a corporation or other entity treated as a corporation for U.S. federal income tax purposes that is created or organized under the laws of the United States, any state thereof or the District of Columbia; (iii) an estate the income of which is subject to U.S. federal income taxation regardless of its source; or (iv) a trust if (A) a court within the United States is able to exercise primary supervision over its administration and one or more United States persons (as defined in the Code) have the authority to control all substantial decisions of such trust, or (B) the trust has made an election under the applicable Treasury regulations to be treated as a United States person.

If a partnership, or other entity or arrangement treated as a partnership for U.S. federal income tax purposes, holds Notes, the tax treatment of a partner in such a partnership will generally depend upon the status of the partner and the activities of the partnership. Partners in a partnership holding Notes should consult their tax advisor as to the particular U.S. federal income tax considerations relevant to the acquisition, ownership and disposition of the Notes applicable to them.

Interest

It is anticipated, and this discussion assumes, that the Notes will not be issued with more than a de minimis amount of original issue discount. Except if interest on the Notes is effectively connected with the conduct by a Non-U.S. Holder of a trade or business within the United States, and subject to the discussions below under “Information Reporting and Backup Withholding” and “Foreign Account Tax Compliance Act,” a Non-U.S. Holder generally will not be subject to U.S. federal income or withholding tax on payments of interest on the Notes provided that such Non-U.S. Holder (A) does not directly or indirectly, actually or

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constructively, own 10% or more of the total combined voting power of all classes of our stock entitled to vote, (B) is not a controlled foreign corporation that is related to us directly or constructively through stock ownership, (C) is not a bank receiving such interest on an extension of credit made pursuant to a loan agreement entered into in the ordinary course of its trade or business, and (D) satisfies certain certification requirements. Such certification requirements will be met if (x) the Non-U.S. Holder provides its name and address, and certifies on an IRS Form W-8BEN or IRS Form W-8BEN-E (or a substantially similar form), under penalties of perjury, that it is not a United States person or (y) a securities clearing organization or certain other financial institutions holding the Notes on behalf of the Non-U.S. Holder certifies on IRS Form W-8IMY, under penalties of perjury, that such certification has been received by it and furnishes us or our paying agent with a copy thereof. In addition, we or our paying agent must not have actual knowledge or reason to know that the beneficial owner of the Notes is a United States person.

If interest on the Notes is not effectively connected with the conduct by the Non-U.S. Holder of a trade or business within the United States, but such Non-U.S. Holder does not satisfy the other requirements outlined in the preceding paragraph, interest on the Notes generally will be subject to U.S. withholding tax at a 30% rate (or a lower applicable treaty rate).

If interest on the Notes is effectively connected with the conduct by a Non-U.S. Holder of a trade or business within the United States, and, if certain tax treaties apply, is attributable to a permanent establishment or fixed base within the United States, the Non-U.S. Holder generally will be subject to U.S. federal income tax on a net income basis at the rate applicable to United States persons generally (and, with respect to corporate holders, may also be subject to a 30% branch profits tax or a lower applicable treaty branch profits tax rate). If interest on the Notes is effectively connected with the conduct by a Non-U.S. Holder of a trade or business within the United States, such interest payments will not be subject to U.S. withholding tax so long as the Non-U.S. Holder provides us or our paying agent with the appropriate documentation (generally an IRS Form W-8ECI).

Sale, Redemption, or Other Taxable Disposition of the Notes

Subject to the discussions below under “Information Reporting and Backup Withholding” and “Foreign Account Tax Compliance Act,” a Non-U.S. Holder generally will not be subject to U.S. federal withholding tax with respect to gain, if any, recognized on the sale, redemption, or other taxable disposition of the Notes. A Non-U.S. Holder will also generally not be subject to U.S. federal income tax with respect to such gain, unless (i) the gain is effectively connected with the conduct by such Non-U.S. Holder of a trade or business within the United States, and, if certain tax treaties apply, is attributable to a permanent establishment or fixed base within the United States, or (ii) in the case of a Non-U.S. Holder that is a nonresident alien individual, such Non-U.S. Holder is present in the United States for 183 or more days in the taxable year of the disposition and certain other conditions are satisfied. In the case described in (i) above, gain or loss recognized on the disposition of such Notes generally will be subject to U.S. federal income taxation in the same manner as if such gain or loss were recognized by a United States person, and, in the case of a Non-U.S. Holder that is a foreign corporation, may also be subject to the branch profits tax at a rate of 30% (or a lower applicable treaty branch profits tax rate). In the case described in (ii) above, the Non-U.S. Holder will be subject to a 30% tax (or a lower applicable treaty rate) on any capital gain recognized on the disposition of the Notes (after being offset by certain U.S. source capital losses).

Information Reporting and Backup Withholding

Information returns will be filed annually with the IRS in connection with payments we make on the Notes. Copies of these information returns may also be made available under the provisions of a specific tax treaty or other agreement to the tax authorities of the country in which the Non-U.S. Holder resides. Unless the Non-U.S. Holder complies with certification procedures to establish that it is not a United States person, information returns may be filed with the IRS in connection with the proceeds from a sale, redemption, or other disposition of the Notes, and the Non-U.S. Holder may be subject to backup withholding (currently at a rate of 24%) on payments on the Notes or on the proceeds from a sale, redemption, or other disposition of the Notes. The certification procedures required to claim the exemption from withholding on interest described above will satisfy the certification requirements necessary to avoid the backup withholding as well. Backup withholding is not an additional tax. The amount of any backup

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withholding from a payment to a Non-U.S. Holder generally will be allowed as a credit against the Non-U.S. Holder’s U.S. federal income tax liability and may entitle the Non-U.S. Holder to a refund, provided that the required information is furnished to the IRS in a timely manner.

Foreign Account Tax Compliance Act

Under the Foreign Account Tax Compliance Act and related IRS guidance concerning foreign account tax compliance rules (“FATCA”), a 30% U.S. withholding tax is imposed on certain payments (which include interest payments on the Notes) made to a non-United States entity that fails to take required steps to provide information regarding its “United States accounts” or its direct or indirect “substantial United States owners,” as applicable, or to make a required certification that it has no such accounts or owners. Although withholding under FATCA would have applied to payments of gross proceeds from the taxable disposition (including redemption) of the Notes, proposed Treasury Regulations eliminate FATCA withholding on payments of gross proceeds entirely. Taxpayers generally may rely on these proposed Treasury Regulations until final Treasury Regulations are issued. We will not be obligated to make any “gross up” or additional payments in respect of amounts withheld on the Notes if we determine that we must so withhold in order to comply with FATCA in respect of the amounts described above.

Prospective investors should consult their own tax advisors regarding FATCA and whether it may be relevant to the ownership and disposition of the Notes.

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BOOK-ENTRY SYSTEM

We have obtained the information in this section concerning DTC and its book-entry system and procedures from sources that we believe to be reliable, but we take no responsibility for the accuracy of this information.

Each series of the Notes initially will be represented by one or more fully registered global securities. Each global security will be deposited with, or on behalf of, DTC or any successor thereto and registered in the name of Cede & Co., DTC’s nominee.

Investors may elect to hold interests in each global security through either DTC in the United States or Clearstream, Luxembourg or the Euroclear System in Europe if they are participants of such systems, or indirectly through organizations which are participants in such systems. Clearstream, Luxembourg and the Euroclear System will hold interests on behalf of their participants through customers’ securities accounts in Clearstream, Luxembourg’s and the Euroclear System’s names on the books of their respective depositaries, which in turn will hold such interests in customers’ securities accounts in the depositaries’ names on the books of DTC. Citibank, N.A. will act as depositary for Clearstream, Luxembourg and JPMorgan Chase Bank, N.A. will act as depositary for the Euroclear System (in such capacities, the “U.S. Depositaries”).

You may hold your interests in a global security in the United States through DTC, either as a participant in such system or indirectly through organizations which are participants in such system. So long as DTC or its nominee is the registered owner of the global securities representing the Notes, DTC or such nominee will be considered the sole owner and holder of the Notes for all purposes of the Notes and the Indenture. Except as provided below, owners of beneficial interests in the Notes will not be entitled to have the Notes registered in their names, will not receive or be entitled to receive physical delivery of the Notes in definitive form and will not be considered the owners or holders of the Notes under the Indenture, including for purposes of receiving any reports that we or the Trustee deliver pursuant to the Indenture. Accordingly, each person owning a beneficial interest in a Note must rely on the procedures of DTC or its nominee and, if such person is not a participant, on the procedures of the participant through which such person owns its interest, in order to exercise any rights of a holder of Notes.

Unless and until we issue the Notes in fully certificated form under the limited circumstances described below under the heading “— Certificated Notes”:

•

you will not be entitled to receive physical delivery of a certificate representing your interest in the Notes;

•

all references in this prospectus supplement or in the accompanying prospectus to actions by holders will refer to actions taken by DTC upon instructions from its direct participants; and

•

all references in this prospectus supplement or the accompanying prospectus to payments and notices to holders will refer to payments and notices to DTC or Cede & Co., as the registered holder of the Notes, for distribution to you in accordance with DTC procedures.

The Depository Trust Company

DTC will act as securities depositary for the Notes. The Notes will be issued as fully registered securities registered in the name of Cede & Co. DTC is:

•

a limited-purpose trust company organized under the New York Banking Law;

•

a “banking organization” within the meaning of the New York Banking Law;

•

a member of the Federal Reserve System;

•

a “clearing corporation” within the meaning of the New York Uniform Commercial Code; and

•

a “clearing agency” registered pursuant to the provisions of Section 17A of the Exchange Act.

DTC holds securities that its direct participants deposit with DTC. DTC also facilitates the post-trade settlement among direct participants of sales and other securities transactions in deposited securities, through

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electronic computerized book-entry transfers and pledges between direct participants’ accounts, thereby eliminating the need for physical movement of securities certificates.

Direct participants include securities brokers and dealers, banks, trust companies, clearing corporations and certain other organizations. DTC is a wholly-owned subsidiary of The Depository Trust & Clearing Corporation (“DTCC”). DTCC is the holding company for DTC, National Securities Clearing Corporation and Fixed Income Clearing Corporation, all of which are registered clearing agencies. DTCC is owned by the users of its regulated subsidiaries. Access to the DTC system is also available to indirect participants such as securities brokers and dealers, banks, trust companies, and clearing corporations that clear through or maintain a custodial relationship with a direct participant, either directly or indirectly. The rules applicable to DTC and its participants are on file with the SEC. More information about DTC can be found at www.dtcc.com. The contents of such website do not constitute part of this prospectus supplement.

If you are not a direct participant or an indirect participant and you wish to purchase, sell or otherwise transfer ownership of, or other interests in the Notes, you must do so through a direct participant or an indirect participant. DTC agrees with and represents to DTC participants that it will administer its book-entry system in accordance with its rules and by-laws and requirements of law. The SEC has on file a set of the rules applicable to DTC and its direct participants.

Purchases of the Notes under DTC’s system must be made by or through direct participants, which will receive a credit for the Notes on DTC’s records. The ownership interest of each beneficial owner is in turn to be recorded on the records of direct participants and indirect participants. Beneficial owners will not receive written confirmation from DTC of their purchase, but beneficial owners are expected to receive written confirmations providing details of the transaction, as well as periodic statements of their holdings, from the direct or indirect participants through which such beneficial owners entered into the transaction. Transfers of ownership interests in the Notes are to be accomplished by entries made on the books of direct and indirect participants acting on behalf of beneficial owners. Beneficial owners will not receive physical delivery of certificates representing their ownership interests in the Notes, except as provided below in “— Certificated Notes.”

To facilitate subsequent transfers, all Notes deposited by direct participants with DTC are registered in the name of DTC’s partnership nominee, Cede & Co., or such other name as may be requested by an authorized representative of DTC. The deposit of Notes with DTC and their registration in the name of Cede & Co. or such other DTC nominee has no effect on beneficial ownership. DTC has no knowledge of the actual beneficial owners of the Notes. DTC’s records reflect only the identity of the direct participants to whose accounts such Notes are credited, which may or may not be the beneficial owners. The direct and indirect participants will remain responsible for keeping account of their holdings on behalf of their customers.

Conveyance of notices and other communications by DTC to direct participants, by direct participants to indirect participants and by direct and indirect participants to beneficial owners will be governed by arrangements among them, subject to any statutory or regulatory requirements as may be in effect from time to time.

Book-Entry Format

Under the book-entry format, the Trustee will pay interest and principal payments to Cede & Co., as nominee of DTC. DTC will forward the payment to the direct participants, who will then forward the payment to the indirect participants or to the beneficial owners. You may experience some delay in receiving your payments under this system.

DTC is required to make book-entry transfers on behalf of its direct participants and is required to receive and transmit payments of principal, premium, if any, and interest on the Notes. Any direct participant or indirect participant with which you have an account is similarly required to make book-entry transfers and to receive and transmit payments with respect to Notes on your behalf. We and the Trustee have no responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests in the Notes or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests.

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The Trustee will not recognize you as a holder of any Notes under the Indenture and you can only exercise the rights of a holder indirectly through DTC and its direct participants. DTC has advised us that it will only take action regarding a Note if one or more of the direct participants to whom the Note is credited direct DTC to take such action. DTC can only act on behalf of its direct participants. Your ability to pledge Notes to indirect participants, and to take other actions, may be limited because you will not possess a physical certificate that represents your Notes.

Certificated Notes

Unless and until they are exchanged, in whole or in part, for Notes in definitive form in accordance with the terms of the Notes, the Notes may not be transferred except as a whole by DTC to a nominee of DTC; as a whole by a nominee of DTC to DTC or another nominee of DTC; or as a whole by DTC or a nominee of DTC to a successor of DTC or a nominee of such successor.

We will issue Notes to you or your nominees, in fully certificated registered form, rather than to DTC or its nominees, only if:

•

DTC notifies us that it is no longer willing or able to discharge its responsibilities properly or DTC is no longer a registered clearing agency under the Exchange Act, and we are unable to locate a qualified successor within 90 days;

•

an event of default has occurred and is continuing under the Indenture and beneficial owners representing a majority in aggregate principal amount of the Notes represented by global securities advise DTC to cease acting as depositary; or

•

we, at our option, and subject to DTC’s procedures, elect to terminate use of the book-entry system through DTC.

If any of the above events occurs, DTC is required to notify all direct participants that Notes in fully certificated registered form are available through DTC. DTC will then surrender each global security representing the Notes along with instructions for re-registration. The Trustee will re-issue the Notes in fully certificated registered form and will recognize the registered holders of the certificated Notes as holders under the Indenture.

Global Clearance and Settlement Procedures

Initial settlement for the Notes will be made in immediately available funds. Secondary market trading between DTC participants will occur in the ordinary way in accordance with DTC rules and will be settled in immediately available funds using DTC’s Same-Day Funds Settlement System. Secondary market trading between Clearstream, Luxembourg participants and/or Euroclear System participants will occur in the ordinary way in accordance with the applicable rules and operating procedures of Clearstream, Luxembourg and the Euroclear System, as applicable.

Cross-market transfers between persons holding directly or indirectly through DTC on the one hand, and directly or indirectly through Clearstream, Luxembourg participants or Euroclear System participants on the other, will be effected through DTC in accordance with DTC rules on behalf of the relevant European international clearing system by its U.S. Depositary; however, such cross-market transactions will require delivery of instructions to the relevant European international clearing system by the counterparty in such system in accordance with its rules and procedures and within its established deadlines (European time). The relevant European international clearing system will, if the transaction meets its settlement requirements, deliver instructions to its U.S. Depositary to take action to effect final settlement on its behalf by delivering or receiving securities in DTC, and making or receiving payment in accordance with normal procedures for same-day funds settlement applicable to DTC. Clearstream, Luxembourg participants and Euroclear System participants may not deliver instructions directly to their respective U.S. Depositaries.

Because of time-zone differences, credits of Notes received in Clearstream, Luxembourg or the Euroclear System as a result of a transaction with a DTC participant will be made during subsequent securities settlement processing and dated the business day following the DTC settlement date. Such credits or any transactions in such Notes settled during such processing will be reported to the relevant Euroclear

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System participant or Clearstream, Luxembourg participant on such business day. Cash received in Clearstream, Luxembourg or the Euroclear System as a result of sales of the Notes by or through a Clearstream, Luxembourg participant or a Euroclear System participant to a DTC participant will be received with value on the DTC settlement date but will be available in the relevant Clearstream, Luxembourg or the Euroclear System cash account only as of the business day following settlement in DTC.

Although DTC, Clearstream, Luxembourg and the Euroclear System have agreed to the foregoing procedures in order to facilitate transfers of Notes among participants of DTC, Clearstream, Luxembourg and the Euroclear System, they are under no obligation to perform or continue to perform such procedures and such procedures may be discontinued or changed at any time.

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UNDERWRITING (CONFLICTS OF INTEREST)

We have entered into an underwriting agreement with respect to the Notes with the underwriters listed below, for whom Citigroup Global Markets Inc., Goldman Sachs & Co. LLC, Mizuho Securities USA LLC, MUFG Securities Americas Inc., PNC Capital Markets LLC, Truist Securities, Inc. and Wells Fargo Securities, LLC are acting as representatives. Subject to certain conditions, each of the underwriters has severally, and not jointly, agreed to purchase the principal amount of Notes indicated in the following table:

Name	Principal Amount of 2035 Notes			Principal Amount of 2055 Notes
Citigroup Global Markets Inc.		$	90,000,000		$	67,500,000
Goldman Sachs & Co. LLC			90,000,000			67,500,000
Mizuho Securities USA LLC			90,000,000			67,500,000
MUFG Securities Americas Inc.			90,000,000			67,500,000
PNC Capital Markets LLC			90,000,000			67,500,000
Truist Securities, Inc.			90,000,000			67,500,000
Wells Fargo Securities, LLC			90,000,000			67,500,000
Barclays Capital Inc.			51,500,000			38,625,000
BMO Capital Markets Corp.			51,500,000			38,625,000
BofA Securities, Inc.			51,500,000			38,625,000
U.S. Bancorp Investments, Inc.			51,500,000			38,625,000
Loop Capital Markets LLC			34,000,000			25,500,000
BNY Mellon Capital Markets, LLC			32,500,000			24,375,000
Huntington Securities, Inc.			32,500,000			24,375,000
Regions Securities LLC			32,500,000			24,375,000
WauBank Securities LLC			32,500,000			24,375,000
Total		$	1,000,000,000		$	750,000,000

The underwriting agreement provides that the obligations of the several underwriters to pay for and accept delivery of the Notes are subject to certain conditions, including the receipt of legal opinions relating to certain matters. The underwriters must purchase all of the 2035 Notes or the 2055 Notes, respectively, if they purchase any of the 2035 Notes or the 2055 Notes. However, the sales of the 2035 Notes and the 2055 Notes are not conditioned upon each other, and we may consummate the sales of one or more series of Notes and not any of the other series of Notes, or consummate the sales at different times. If an underwriter defaults, the underwriting agreement provides that the purchase commitments of the non-defaulting underwriters may be increased or the underwriting agreement may be terminated.

We have agreed to indemnify the several underwriters against certain liabilities, including liabilities under the Securities Act, or to contribute to payments the underwriters may be required to make in respect of any of these liabilities.

The underwriters are offering the Notes subject to prior sale, when, as and if issued to and accepted by them, subject to approval of legal matters by their counsel, including the validity of the Notes, and other conditions contained in the underwriting agreement, such as the receipt by the underwriters of officers’ certificates and legal opinions. The underwriters reserve the right to withdraw, cancel or modify offers to the public and to reject orders in whole or in part.

Commissions and Discounts

The Notes sold by the underwriters to the public will initially be offered at the applicable price to the public set forth on the cover of this prospectus supplement and may be offered to certain dealers at such price less a concession not in excess of (i) 0.390% of the aggregate principal amount of the 2035 Notes or

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(ii) 0.525% of the aggregate principal amount of the 2055 Notes. The underwriters may allow, and those dealers may reallow, a discount not in excess of (i) 0.250% of the aggregate principal amount of the 2035 Notes or (ii) 0.250% of the aggregate principal amount of the 2055 Notes, to certain other dealers. If all of the 2035 Notes or the 2055 Notes are not sold at the applicable price to the public, the underwriters may change such price to the public and the other selling terms.

The expenses of the offerings, not including the respective underwriting discounts, are estimated to be approximately $1,747,000. The underwriters have agreed to make a payment to us in an amount equal to $2,937,500, including in respect of expenses incurred by us in connection with the offerings.

Settlement

It is expected that delivery of the Notes will be made against payment for the Notes on or about the date specified on the cover page of this prospectus supplement, which is the third business day following the date of this prospectus supplement (such settlement cycle being referred to as “T+3”). Under Rule 15c6-1 under the Exchange Act, trades in the secondary market generally are required to settle in one business day unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade the Notes prior to the date that is one business day preceding the settlement date will be required, by virtue of the fact that the Notes initially will settle in T+3, to specify an alternative settlement cycle at the time of any such trade to prevent a failed settlement. Purchasers of the Notes who wish to trade the Notes prior to the date that is one business day preceding the settlement date should consult their own advisors.

New Issue of Notes

Each series of the Notes is a new issue of securities with no established trading market. The Notes will not be listed on any securities exchange or included in any automated quotation system. We have been advised by the underwriters that the underwriters intend to make a market in each series of the Notes, but they are not obligated to do so and may discontinue market making at any time without notice. No assurance can be given as to the liquidity of any trading markets for the Notes.

Price Stabilization and Short Positions

In connection with the offerings, the underwriters may engage in transactions that stabilize, maintain, or otherwise affect the prices of the Notes. These transactions may include short sales, stabilizing transactions and purchases to cover positions created by short sales. Short sales involve the sale by the underwriters of a greater aggregate principal amount of each series of Notes than they are required to purchase in the offerings. Stabilizing transactions consist of certain bids or purchases made for the purpose of preventing or retarding a decline in the market price of each series of the Notes while the offerings are in process.

These activities by the underwriters may stabilize, maintain or otherwise affect the market prices of the Notes. As a result, the price of each series of the Notes may be higher than the price that otherwise might exist in the open market. If these activities are commenced, they may be discontinued by the underwriters at any time. These transactions may be effected in the over-the-counter market or otherwise.

Other Relationships

The underwriters and their respective affiliates are full service financial institutions engaged in various activities, which may include, among other activities, securities trading and underwriting, commercial and investment banking, financial advisory, corporate trust, investment management, investment research, principal investment, hedging, financing and brokerage activities. In the ordinary course of their respective businesses, some of the underwriters and/or their affiliates have in the past and may in the future provide us and our affiliates with commercial banking, investment banking, financial advisory and other services for which they have received and in the future will receive customary fees. In particular, BNY Mellon Capital Markets, LLC, one of the underwriters participating in the offerings, is an affiliate of the Trustee.

In addition, in the ordinary course of their respective business activities, the underwriters and their respective affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for their own

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account and for the accounts of their customers. Such investments and securities activities may involve securities and/or instruments of ours or our affiliates.

Certain of the underwriters or their affiliates have a lending relationship with us and our affiliates. Certain of those underwriters or their affiliates routinely hedge, and certain other of those underwriters or their affiliates may hedge, their credit exposure to us and our affiliates consistent with their customary risk management policies. Typically, such underwriters and their affiliates would hedge such exposure by entering into transactions which consist of either the purchase of credit default swaps or the creation of short positions in our securities, including potentially the Notes offered hereby. Any such credit default swaps or short positions could adversely affect future trading prices of the Notes offered hereby.

The underwriters and their respective affiliates may also make investment recommendations and/or publish or express independent research views in respect of such securities or financial instruments and may hold, or recommend to clients that they acquire, long and/or short positions in such securities and instruments.

Theodore F. Craver, Jr., who serves as a member of Duke Energy Corporation’s Board of Directors, serves as a member of Wells Fargo & Company’s Board of Directors, which is an affiliate of Wells Fargo Securities, LLC, one of the underwriters in these offerings.

Conflicts of Interest

A portion of the aggregate net proceeds from the sale of the Notes will be used (i) to repay a portion of our outstanding commercial paper, (ii) to repay at maturity $650 million aggregate principal amount of our outstanding 0.90% Senior Notes and (iii) to repay at maturity $500 million aggregate principal amount of our outstanding 5.000% Senior Notes. To the extent that any of the underwriters or their affiliates hold our commercial paper, some of the 0.90% Senior Notes or some of the 5.000% Senior Notes, such party would receive a portion of the aggregate net proceeds from the sale of the Notes used to repay a portion of our outstanding commercial paper. Accordingly, any such underwriters may have a conflict of interest, in that they have an interest in the offerings beyond the underwriting discounts they will receive in connection with the offerings.

Selling Restrictions

Notice to Prospective Investors in the EEA

Prohibition of Sales to EEA Retail Investors

The Notes may not be offered, sold or otherwise made available to any retail investor in the EEA. For the purposes of this provision:

(a) the expression “retail investor” means a person who is one (or more) of the following:

(i)

a retail client as defined in point (11) of Article 4(1) of MiFID II; or

(ii)

a customer within the meaning of the Insurance Distribution Directive, where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or

(iii)

not an EEA Qualified Investor; and

(b)

the expression “offer” includes the communication in any form and by any means of sufficient information on the terms of the offer and the Notes to be offered so as to enable an investor to decide to purchase or subscribe for the Notes.

Notice to Prospective Investors in the United Kingdom

Prohibition of Sales to United Kingdom Retail Investors

The Notes may not be offered, sold or otherwise made available to any retail investor in the United Kingdom. For the purposes of this provision:

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(a) the expression “retail investor” means a person who is one (or more) of the following:

(i)

a retail client, as defined in point (8) of Article 2 of Regulation (EU) No 2017/565 as it forms part of domestic law in the United Kingdom; or

(ii)

a customer within the meaning of the provisions of the FSMA and any rules or regulations made under the FSMA to implement Directive (EU) 2016/97, where that customer would not qualify as a professional client, as defined in point (8) of Article 2(1) of UK MiFIR; or

(iii)

not a UK Qualified Investor; and

(b)

Other Regulatory Restrictions in the United Kingdom

Any invitation or inducement to engage in investment activity (within the meaning of Section 21 of the FSMA) in connection with the issue or sale of the Notes may only be communicated or caused to be communicated in circumstances in which Section 21(1) of the FSMA does not apply to Duke Energy Corporation.

All applicable provisions of the FSMA must be complied with in respect to anything done by any person in relation to the Notes in, from or otherwise involving the United Kingdom.

Notice to Prospective Investors in Canada

The Notes may be sold only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument 45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the Notes must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws.

Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus supplement and the accompanying prospectus (including any amendment thereto) contains a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.

Pursuant to section 3A.3 of National Instrument 33-105 Underwriting Conflicts (NI 33-105), the underwriters are not required to comply with the disclosure requirements of NI 33-105 regarding underwriter conflicts of interest in connection with this offering.

Notice to Prospective Investors in Singapore

This prospectus supplement has not been and will not be registered as a prospectus under the Securities and Futures Act 2001 (the “SFA”) by the Monetary Authority of Singapore, and the offer of the notes in Singapore is made primarily pursuant to the exemptions under Sections 274 and 275 of the SFA. Accordingly, this prospectus supplement and any other document or material in connection with the offer or sale, or invitation for subscription or purchase, of the notes may not be circulated or distributed, nor may the notes be offered or sold, or be made the subject of an invitation for subscription or purchase, whether directly or indirectly, to any person in Singapore other than:

(a)

to an institutional investor (as defined in Section 4A of the SFA) (an “Institutional Investor”) pursuant to Section 274 of the SFA;

(b)

to an accredited investor (as defined in Section 4A of the SFA) (an “Accredited Investor”) or

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other relevant person (as defined in Section 275(2) of the SFA) (a “Relevant Person”) and pursuant to Section 275(1) of the SFA, or to any person pursuant to an offer referred to in Section 275(1A) of the SFA, and in accordance with the conditions specified in Section 275 of the SFA and (where applicable) Regulation 3 of the Securities and Futures (Classes of Investors) Regulations 2018; or

(c)

otherwise pursuant to, and in accordance with the conditions of, any other applicable exemption or provision of the SFA.

It is a condition of the offer that where the notes are subscribed for or acquired pursuant to an offer made in reliance on Section 275 of the SFA by a Relevant Person which is:

(a)

a corporation (which is not an Accredited Investor) the sole business of which is to hold investments and the entire share capital of which is owned by one or more individuals, each of whom is an Accredited Investor; or

(b)

a trust (where the trustee is not an Accredited Investor), the sole purpose of which is to hold investments and each beneficiary of the trust is an individual who is an Accredited Investor,

securities or securities-based derivatives contracts (each term as defined in Section 2(1) of the SFA) of that corporation and the beneficiaries’ rights and interest (howsoever described) in that trust shall not be transferred within six months after that corporation or that trust has subscribed for or acquired the notes except:

(i)

to an Institutional Investor, an Accredited Investor, a Relevant Person, or which arises from an offer referred to in Section 275(1A) of the SFA (in the case of that corporation) or Section 276(4)(c)(ii) of the SFA (in the case of that trust);

(ii)

where no consideration is or will be given for the transfer;

(iii)

where the transfer is by operation of law; or

(iv)

as specified in Section 276(7) of the SFA.

Notice to Prospective Investors in Japan

The Notes have not been and will not be registered under the Financial Instruments and Exchange Law of Japan (Law No. 25 of 1948, as amended) (the “Financial Instruments and Exchange Law”), and accordingly, the Notes have not been offered or sold and will not be offered or sold, directly or indirectly, in Japan or to, or for the account or benefit of, any resident of Japan (which term as used herein means any person resident in Japan, including any corporation or other entity organized under the laws of Japan), or to, for the account or benefit of, others for re-offering or resale, directly or indirectly, in Japan or to, for the account or benefit of, any resident of Japan, except pursuant to an exemption from the registration requirements of, and otherwise in compliance with, the Financial Instruments and Exchange Law and any other applicable laws, regulations and guidelines promulgated by the relevant Japanese governmental and regulatory authorities and in effect at the relevant time.

Notice to Prospective Investors in the Republic of Korea

The Notes may not be offered, sold and delivered directly or indirectly, or offered or sold to any person for reoffering or resale, directly or indirectly, in the Republic of Korea or to any resident of the Republic of Korea except pursuant to the applicable laws and regulations of the Republic of Korea, including the Korea Securities and Exchange Act and the Foreign Exchange Transaction Law and the decrees and regulations thereunder. The Notes have not been and will not be registered with the Financial Services Commission of Korea for public offering in the Republic of Korea. Furthermore, the Notes may not be resold to residents of the Republic of Korea unless the purchaser of the Notes complies with all applicable regulatory requirements (including but not limited to government approval requirements under the Foreign Exchange Transaction Law and its subordinate decrees and regulations) in connection with the purchase of the Notes.

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Notice to Prospective Investors in Taiwan

The Notes have not been and will not be registered with the Financial Supervisory Commission of Taiwan, the Republic of China (“Taiwan”), pursuant to relevant securities laws and regulations and may not be offered or sold in Taiwan through a public offering or in any manner which would constitute an offer within the meaning of the Securities and Exchange Act of Taiwan or would otherwise require registration with or the approval of the Financial Supervisory Commission of Taiwan. No person or entity in Taiwan has been authorized to offer, sell, give advice regarding or otherwise intermediate the offering or sale of the Notes in Taiwan.

Notice to Prospective Investors in Switzerland

This prospectus supplement and the accompanying prospectus are not intended to constitute an offer or solicitation to purchase or invest in the Notes. The Notes may not be publicly offered, directly or indirectly, in Switzerland within the meaning of the Swiss Financial Services Act (“FinSA”) and no application has or will be made to admit the Notes to trading on any trading venue (exchange or multilateral trading facility) in Switzerland. Neither this prospectus supplement, the accompanying prospectus nor any other offering or marketing material relating to the Notes constitutes a prospectus pursuant to the FinSA, and neither this prospectus supplement, the accompanying prospectus nor any other offering or marketing material relating to the Notes may be publicly distributed or otherwise made publicly available in Switzerland.

Notice to Prospective Investors in the United Arab Emirates

This prospectus supplement and the accompanying prospectus have not been reviewed, approved or licensed by the Central Bank of the United Arab Emirates (the “UAE”), the Emirates Securities and Commodities Authority (the “SCA”) or any other relevant licensing authority in the UAE including any licensing authority incorporated under the laws and regulations of any of the free zones established and operating in the UAE including, without limitation, the Dubai Financial Services Authority, a regulatory authority of the Dubai International Financial Centre.

This prospectus supplement and the accompanying prospectus are not intended to, and do not, constitute an offer, sale or delivery of shares or other securities under the laws of the UAE. Accordingly, the Notes have not been and will not be registered with the SCA or the UAE Central Bank, the Dubai Financial Market, the Abu Dhabi Securities Market or any other UAE regulatory authority or exchange.

The issue and/or sale of the Notes has not been approved or licensed by the SCA, the UAE Central Bank or any other relevant licensing authority in the UAE and does not constitute a public offer of securities in the UAE in accordance with the Commercial Companies Law, Federal Law No. 1 of 2015 (as amended) or otherwise, does not constitute an offer in the UAE in accordance with the Board Decision No. 37 of 2012 Concerning the Regulation of Investment Funds (whether by a Foreign Fund, as defined therein, or otherwise) and further does not constitute the brokerage of securities in the UAE in accordance with the Board Decision No. 27 of 2014 Concerning Brokerage in Securities.

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LEGAL MATTERS

The validity of the Notes will be passed upon for Duke Energy Corporation by Elizabeth H. Jones, Esq., who is Deputy General Counsel of Duke Energy Business Services LLC, the service company affiliate of Duke Energy Corporation. Certain legal matters with respect to the offerings of the Notes will be passed upon for Duke Energy Corporation by Hunton Andrews Kurth LLP, New York, New York. Sidley Austin LLP, New York, New York, has acted as counsel to the underwriters. Sidley Austin LLP acts and, in the past has acted, as counsel to Duke Energy Corporation and certain of its subsidiaries in connection with various matters.

WHERE YOU CAN FIND MORE INFORMATION

We are subject to the informational requirements of the Exchange Act, and, in accordance therewith, file annual, quarterly and current reports, proxy statements and other information with the SEC. Our filings with the SEC, as well as additional information about us, are available to the public through our 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 supplement or the accompanying prospectus. Our filings are also available to the public through the SEC’s website at http://www.sec.gov.

The SEC allows us to “incorporate by reference” into this prospectus supplement 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 supplement, and information that we file later with the SEC will automatically update and supersede this information. This prospectus supplement incorporates by reference the documents incorporated in the accompanying prospectus at the time the registration statement became effective and all later documents filed with the SEC, in all cases as updated and superseded by later filings with the SEC. We incorporate by reference the documents listed below and any future documents filed by us with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Exchange Act, until the offerings are completed:

•

Annual Report on Form 10-K for the year ended December 31, 2024;

•

Quarterly Reports on Form 10-Q for the quarterly periods ended March 31, 2025 and June 30, 2025; and

•

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, February 3, 2025, March 17, 2025, May 5, 2025, July 29, 2025 and August 5, 2025 (Item 1.01).

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 supplement the stand alone information relating to our subsidiaries, and we make no representation as to such stand along information relating to any of our subsidiaries contained in such combined reports.

We will provide you without charge a copy of these filings, other than any exhibits unless the exhibits are specifically incorporated by reference into this prospectus supplement. 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
(800) 488-3853 (toll-free)

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Prospectus

Duke Energy Corporation

Common Stock
Preferred Stock
Depositary Shares
Debt Securities
Stock Purchase Contracts
Stock Purchase Units

From time to time, we may offer the securities described in this prospectus separately or together in any combination, in one or more classes or series, in amounts, at prices and on terms that we will determine at the time of the offering.

We will provide specific terms of these offerings and securities in supplements to this prospectus. You should read carefully this prospectus, the information incorporated by reference in this prospectus and any prospectus supplement before you invest. This prospectus may not be used to offer or sell any securities unless accompanied by a prospectus supplement.

Our common stock is listed on the New York Stock Exchange, or NYSE, under the trading symbol “DUK.”

Investing in our securities involves risks. You should carefully consider the information in the section entitled “Risk Factors” on page 1 of this prospectus before you invest in any of our securities.

We may offer and sell the securities directly, through agents we select from time to time or to or through underwriters or dealers we select. If we use any agents, underwriters or dealers to sell the securities, we will name them and describe their compensation in a prospectus supplement. The price to the public of those securities and the net proceeds we expect to receive from that sale will also be set forth in a prospectus supplement.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is September 23, 2022.

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Prospectus

	REFERENCES TO ADDITIONAL INFORMATION					ii
	ABOUT THIS PROSPECTUS					ii
	FORWARD-LOOKING STATEMENTS					ii
	THE COMPANY					1
	RISK FACTORS					1
	USE OF PROCEEDS					2
	DESCRIPTION OF COMMON STOCK					2
	DESCRIPTION OF PREFERRED STOCK					2
	DESCRIPTION OF DEPOSITARY SHARES					3
	DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASE UNITS					4
	DESCRIPTION OF DEBT SECURITIES					4
	PLAN OF DISTRIBUTION					10
	EXPERTS					11
	VALIDITY OF THE SECURITIES					11
	WHERE YOU CAN FIND MORE INFORMATION					11

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REFERENCES TO ADDITIONAL INFORMATION

This prospectus incorporates important business and financial information about us from other documents that are not included in or delivered with this prospectus. This information is available for you to review through the Securities and Exchange Commission’s, or SEC’s, website, www.sec.gov. You can also obtain those documents incorporated by reference in this prospectus by requesting them in writing or by telephone from us at the following address and telephone number:

Investor Relations Department
Duke Energy Corporation
P.O. Box 1005
Charlotte, North Carolina 28201
(704) 382-3853 or (800) 488-3853 (toll-free)

See “Where You Can Find More Information” in this prospectus.

ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that Duke Energy filed with the SEC utilizing a “shelf” registration process. Under the shelf registration process, we are registering an unspecified amount of our common stock, preferred stock, depositary shares, stock purchase contracts, stock purchase units and debt securities, and may issue any of such securities in one or more offerings.

This prospectus provides general descriptions of the securities we may offer. Each time securities are sold, a prospectus supplement will provide specific information about the terms of that offering. The prospectus supplement may also add, update or change information contained in this prospectus. The registration statement filed with the SEC includes exhibits that provide more details about the matters discussed in this prospectus. You should read this prospectus, the related exhibits filed with the SEC and any prospectus supplement, together with the additional information described under the caption “Where You Can Find More Information.”

Unless we have indicated otherwise, or the context otherwise requires, references in this prospectus to “Duke Energy,” “we,” “us” and “our” or similar terms are to Duke Energy Corporation and its subsidiaries.

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, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Forward-looking statements are based on our management’s beliefs and assumptions and can often be 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 any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

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THE COMPANY

Duke Energy, together with its subsidiaries, is a diversified energy company with both regulated and unregulated utility operations. We conduct business through the following operating business segments: Electric Utilities and Infrastructure, Gas Utilities and Infrastructure, and Commercial Renewables.

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 8.2 million customers within the Southeast and Midwest regions of the U.S. The service territory is approximately 91,000 square miles across six states with a total estimated population of 26 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. During 2021, Duke Energy executed an agreement providing for an investment by an affiliate of GIC Private Limited, Singapore’s sovereign wealth fund (“GIC”), in Duke Energy Indiana, LLC (“Duke Energy Indiana”) in exchange for a 19.9% minority interest in Duke Energy Indiana. The transaction will be completed following two closings. The first closing occurred on September 8, 2021, and resulted in GIC acquiring an 11.05% interest in Duke Energy Indiana. The second closing is expected to occur no later than January 2023.

Duke Energy’s Gas Utilities and Infrastructure segment conducts natural gas operations primarily through the regulated public utilities of Piedmont Natural Gas Company, Inc. and Duke Energy Ohio, 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 1.6 million customers, including 1.1 million customers located in North Carolina, South Carolina and Tennessee, and an additional 550,000 customers located within southwestern Ohio and northern Kentucky.

Duke Energy’s Commercial Renewables segment primarily acquires, develops, builds, operates and owns wind and solar renewable generation throughout the continental U.S. Duke Energy’s Commercial Renewables segment also enters into strategic transactions including minority ownership and tax equity structures in wind and solar generation. The portfolio includes nonregulated renewable energy and energy storage businesses. Duke Energy’s Commercial Renewables segment’s renewable energy includes utility-scale wind and solar generation assets, distributed solar generation assets, distributed fuel cell assets and battery storage projects, which total 3,554 megawatts across 22 states from 23 wind facilities, 178 solar projects, 71 fuel cell locations and two battery storage facilities. On August 4, 2022 Duke Energy announced a strategic review of the Commercial Renewables segment.

Duke Energy is a Delaware corporation. The address of Duke Energy’s principal executive offices is 526 South Church Street, Charlotte, North Carolina 28202-1803 and its telephone number is (704) 382-3853. 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.

RISK FACTORS

Investing in our securities involves risks. Before purchasing any securities we offer, you should carefully consider the risk factors that are incorporated by reference herein 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 prospectus supplement and any other information that we have incorporated by reference, including filings made with the SEC subsequent to the date hereof. Any of these risks, as well as other risks and uncertainties, could harm our financial condition, results of operations or cash flows.

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USE OF PROCEEDS

Unless otherwise set forth in a prospectus supplement, we intend to use the net proceeds of any offering of securities sold by us for general corporate purposes, which may include acquisitions, repayment of debt, capital expenditures and working capital. When a particular series of securities is offered, the prospectus supplement relating to that offering will set forth our intended use of the net proceeds received from the sale of those securities. The net proceeds may be invested temporarily in short-term marketable securities or applied to repay short-term debt until they are used for their stated purpose.

DESCRIPTION OF COMMON STOCK

The following summary of our capital stock is subject in all respects to the applicable provisions of the Delaware General Corporation Law, or the DGCL, and our amended and restated certificate of incorporation. The following discussion is a summary of our amended and restated certificate of incorporation and by-laws and is qualified in its entirety by reference to those documents.

Our total number of authorized shares of capital stock consists of 2 billion shares of common stock, par value $0.001 per share, and 44 million shares of preferred stock, par value $0.001 per share.

Except as otherwise required by law and subject to the rights of the holders of any class or series of preferred stock, with respect to all matters upon which shareholders are entitled to vote or to which shareholders are entitled to give consent, the holders of any outstanding shares of common stock vote together as a class, and every holder of common stock is entitled to cast one vote in person or by proxy for each share of common stock standing in such holder’s name on our books. We do not have a classified board of directors nor do we permit cumulative voting.

Holders of common stock are not entitled to any preemptive rights to subscribe for additional shares of common stock nor are they liable to further capital calls or to assessments by us.

Subject to applicable law and the rights, if any, of the holders of any class or series of preferred stock having a preference over the rights to participate with the common stock with respect to the payment of dividends, holders of our common stock are entitled to receive dividends or other distributions as declared by our board of directors at its discretion.

The board of directors may create a class or series of preferred stock with dividends the rate of which is calculated by reference to, and payment of which is concurrent with, dividends on shares of common stock.

DESCRIPTION OF PREFERRED STOCK

Our board of directors has the full authority permitted by law, at any time and from time to time, to divide the authorized and unissued shares of preferred stock into one or more classes or series and, with respect to each such class or series, to determine by resolution or resolutions the number of shares constituting such class or series and the designation of such class or series, the voting powers, if any, of the shares of such class or series, and the preferences and relative, participating, optional or other special rights, if any, and any qualifications, limitations or restrictions thereof, of the shares of any such class or series of preferred stock to the full extent now or as may in the future be permitted by the law of the State of Delaware. The powers, preferences and relative, participating, optional and other special rights of each class or series of preferred stock and the qualifications, limitations or restrictions thereof, if any, may differ from those of any and all other classes or series at any time outstanding. Except as otherwise required by law, as provided in the certificate of incorporation or as determined by our board of directors, holders of preferred stock will not have any voting rights and will not be entitled to any notice of shareholder meetings.

Provisions that Have or May Have the Effect of Delaying or Prohibiting a Change in Control

Under our certificate of incorporation, the board of directors has the full authority permitted by Delaware law to determine the voting rights, if any, and designations, preferences, limitations and special rights of any class or any series of any class of the preferred stock.

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The certificate of incorporation also provides that a director may be removed from office with or without cause. However, subject to applicable law, any director elected by the holders of any series of preferred stock may be removed without cause only by the holders of a majority of the shares of such series of preferred stock.

Our certificate of incorporation requires an affirmative vote of the holders of at least 80% of the combined voting power of the then outstanding shares of stock of all our classes entitled to vote generally in the election of directors, voting together as a single class, to amend, alter or repeal provisions in the certificate of incorporation which relate to the number of directors and vacancies and newly created directorships.

Our certificate of incorporation provides that certain actions required or permitted to be taken at an annual or special meeting of shareholders may be effected without a meeting by written consent of the holders of our common stock, but only if such action is taken in accordance with our certificate of incorporation, our by-laws and applicable law.

Our by-laws provide that, except as expressly required by the certificate of incorporation or by applicable law, and subject to the rights of the holders of any series of preferred stock, special meetings of the shareholders or of any series entitled to vote may be called for any purpose or purposes only by the Chairman of the board of directors or by the board of directors. In addition, special meetings of the shareholders or of any class or series entitled to vote may also be called by our Secretary upon the written request by the holders of record at the time such request is delivered representing at least fifteen percent (15%) of the outstanding shares of our common stock.

The provisions of our certificate of incorporation and by-laws conferring on our board of directors the full authority to issue preferred stock, the restrictions on removing directors elected by holders of preferred stock, the supermajority voting requirements relating to the amendment, alteration or repeal of the provisions governing the number of directors and filling of vacancies and newly created directorships, and the requirement that shareholders act at a meeting unless all shareholders agree in writing, in certain instances could have the effect of delaying, deferring or preventing a change in control or the removal of existing management.

DESCRIPTION OF DEPOSITARY SHARES

We may issue depositary shares representing fractional interests in shares of our preferred stock of any series. In connection with the issuance of any depositary shares, we will enter into a deposit agreement with a depositary. The following description sets forth certain general terms and provisions of the depositary shares to which any prospectus supplement may relate. The particular terms of the depositary shares to which any prospectus supplement may relate and the extent, if any, to which the general terms and provisions may apply to the depositary shares so offered will be described in the applicable prospectus supplement. To the extent that any particular terms of the depositary shares, deposit agreements and depositary receipts described in a prospectus supplement differ from any of the terms described below, then the terms described below will be deemed to have been superseded by that prospectus supplement. We encourage you to read the applicable deposit agreement and depositary receipts for additional information before you decide whether to purchase any of our depositary shares.

In connection with the issuance of any depositary shares, we will enter into a deposit agreement with a bank or trust company, as depositary, which will be named in the applicable prospectus supplement. Depositary shares will be evidenced by depositary receipts issued pursuant to the related deposit agreement. Immediately following our issuance of the security related to the depositary shares, we will deposit the shares of our preferred stock with the relevant depositary and will cause the depositary to issue, on our behalf, the related depositary receipts. Subject to the terms of the deposit agreement, each owner of a depositary receipt will be entitled, in proportion to the fractional interest in the share of preferred stock represented by the related depositary share, to all the rights, preferences and privileges of, and will be subject to all of the limitations and restrictions on, the preferred stock represented by the depositary receipt (including, if applicable, dividend, voting, conversion, exchange, redemption, sinking fund, subscription and liquidation rights). To the extent appropriate, the applicable prospectus supplement will describe the specific terms of the depositary shares offered thereby. The terms of any offered depositary shares will be described in a supplement to this prospectus.

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DESCRIPTION OF STOCK PURCHASE CONTRACTS AND STOCK PURCHASE UNITS

We may issue stock purchase contracts, including contracts obligating holders to purchase from us, and obligating us to sell to the holders, shares of our common stock at a future date or dates. We may fix the price and the number of shares of common stock subject to the stock purchase contract at the time we issue the stock purchase contracts or we may provide that the price and number of shares of common stock will be determined by reference to a specific formula set forth in the stock purchase contracts. The stock purchase contracts may be issued separately or as part of units, often known as stock purchase units, consisting of a stock purchase contract and beneficial interests in either:

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our senior debt securities or subordinated debt securities or our preferred stock, or

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debt securities of third parties, including, but not limited to, U.S. treasury securities, securing the holders’ obligations to purchase the common stock under the stock purchase contracts.

The applicable prospectus supplement will describe the terms of the stock purchase contracts or stock purchase units, including, if applicable, collateral or depositary arrangements. The description in the applicable prospectus supplement will not contain all of the information you may find useful and reference will be made to the stock purchase contracts or stock purchase units and, if applicable, the collateral or depository arrangement relating to the stock purchase contracts or stock purchase units.

DESCRIPTION OF DEBT SECURITIES

Duke Energy will issue the debt securities, whether senior or subordinated, in one or more series under its Indenture, dated as of June 3, 2008, as supplemented from time to time. Unless otherwise specified in the applicable prospectus supplement, the trustee under the Indenture, or the Indenture Trustee, will be The Bank of New York Mellon Trust Company, N.A. A copy of the Indenture is an exhibit to the registration statement, of which this prospectus is a part.

Duke Energy conducts its business through subsidiaries. Accordingly, its ability to meet its obligations under the debt securities 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 operations and expansion of their businesses, and Duke Energy anticipates that certain of its subsidiaries will do so in the future.

Holders of debt securities 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. Unless otherwise specified in a prospectus supplement, the Indenture will not limit the amount of indebtedness or preferred stock issuable by our subsidiaries.

The following description of the debt securities is only a summary and is not intended to be comprehensive. For additional information you should refer to the Indenture.

General

The Indenture does not limit the amount of debt securities that Duke Energy may issue under it. Duke Energy may issue debt securities from time to time under the Indenture in one or more series by entering into supplemental indentures or by its board of directors or a duly authorized committee authorizing the issuance.

The debt securities of a series need not be issued at the same time, bear interest at the same rate or mature on the same date.

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Provisions Applicable to Particular Series

The prospectus supplement for a particular series of debt securities being offered will disclose the specific terms related to the offering, including the price or prices at which the debt securities to be offered will be issued. Those terms may include some or all of the following:

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the title of the series;

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the total principal amount of the debt securities of the series;

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the date or dates on which principal is payable or the method for determining the date or dates, and any right that Duke Energy has to change the date on which principal is payable;

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the interest rate or rates, if any, or the method for determining the rate or rates, and the date or dates from which interest will accrue;

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any interest payment dates and the regular record date for the interest payable on each interest payment date, if any;

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whether Duke Energy may extend the interest payment periods and, if so, the terms of the extension;

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the place or places where payments will be made;

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whether Duke Energy has the option to redeem the debt securities and, if so, the terms of its redemption option;

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any obligation that Duke Energy has to redeem the debt securities through a sinking fund or to purchase the debt securities through a purchase fund or at the option of the holder;

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whether the provisions described under “Satisfaction and Discharge; Defeasance and Covenant Defeasance” will not apply to the debt securities;

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the currency in which payments will be made if other than U.S. dollars, and the manner of determining the equivalent of those amounts in U.S. dollars;

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if payments may be made, at Duke Energy’s election or at the holder’s election, in a currency other than that in which the debt securities are stated to be payable, then the currency in which those payments may be made, the terms and conditions of the election and the manner of determining those amounts;

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the portion of the principal payable upon acceleration of maturity, if other than the entire principal;

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whether the debt securities will be issuable as global securities and, if so, the securities depositary;

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any changes in the events of default or covenants with respect to the debt securities;

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any index or formula used for determining principal, premium or interest;

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the terms of the subordination of any series of subordinated debt;

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if the principal payable on the maturity date will not be determinable on one or more dates prior to the maturity date, the amount which will be deemed to be such principal amount or the manner of determining it;

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the person to whom any interest shall be payable if other than the person in whose name the debt security is registered on the regular record date for such interest payment; and

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any other terms.

Unless Duke Energy states otherwise in the applicable prospectus supplement, Duke Energy will issue the debt securities only in fully registered form without coupons, and there will be no service charge for any registration of transfer or exchange of the debt securities. Duke Energy may, however, require payment to cover any tax or other governmental charge payable in connection with any transfer or exchange (excluding certain exchanges not constituting a transfer as set forth in the Indenture). Subject to the terms of the Indenture and the limitations applicable to global securities, transfers and exchanges of the debt securities may be made at The Bank of New York Mellon Trust Company, N.A., 240 Greenwich Street, New York, New York 10286 or at any other office maintained by Duke Energy for such purpose.

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The debt securities will be issuable in denominations of $1,000 and any integral multiples of $1,000, unless Duke Energy states otherwise in the applicable prospectus supplement. Duke Energy may at any time deliver executed debt securities to the Indenture Trustee for authentication, and the Indenture Trustee shall authenticate such debt securities upon the written request of Duke Energy and satisfaction of certain other conditions set forth in the Indenture.

Duke Energy may offer and sell the debt securities, including original issue discount debt securities, at a substantial discount below their principal amount. The applicable prospectus supplement will describe special United States federal income tax and any other considerations applicable to those securities. In addition, the applicable prospectus supplement may describe certain special United States federal income tax or other considerations, if any, applicable to any debt securities that are denominated in a currency other than U.S. dollars.

Global Securities

We may issue some or all of the Debt Securities as book-entry securities. Any such book-entry securities will be represented by one or more fully registered global certificates. We will register each global security with or on behalf of a securities depositary identified in the applicable prospectus supplement. Each global security will be deposited with the securities depositary or its nominee or a custodian for the securities depositary.

As long as the securities depositary or its nominee is the registered holder of a global security representing Debt Securities, that person will be considered the sole owner and holder of the global security and the securities it represents for all purposes. Except in limited circumstances, owners of beneficial interests in a global security:

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may not have the global security or any Debt Securities registered in their names;

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may not receive or be entitled to receive physical delivery of certificated Debt Securities in exchange for the global security; and

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will not be considered the owners or holders of the global security or any Debt Securities for any purposes under the applicable securities or the related mortgage or indenture.

We will make all payments of principal and any premium and interest on a global security to the securities depositary or its nominee as the holder of the global security. The laws of some jurisdictions require that certain purchasers of securities take physical delivery of securities in definitive form. These laws may impair the ability to transfer beneficial interests in a global security.

Ownership of beneficial interests in a global security will be limited to institutions having accounts with the securities depositary or its nominee, which are called “participants” in this discussion, and to persons that hold beneficial interests through participants. When a global security representing Debt Securities is issued, the securities depositary will credit on its book-entry, registration and transfer system the principal amounts of Debt Securities the global security represents to the accounts of its participants. Ownership of beneficial interests in a global security will be shown only on, and the transfer of those ownership interests will be effected only through, records maintained by:

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the securities depositary, with respect to participants’ interests; and

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any participant, with respect to interests the participant holds on behalf of other persons.

Payments participants make to owners of beneficial interests held through those participants will be the responsibility of those participants. The securities depositary may from time to time adopt various policies and procedures governing payments, transfers, exchanges and other matters relating to beneficial interests in a global security. None of the following will have any responsibility or liability for any aspect of the securities depositary’s or any participant’s records relating to beneficial interests in a global security representing Debt Securities, for payments made on account of those beneficial interests or for maintaining, supervising or reviewing any records relating to those beneficial interests:

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Duke Energy Corporation;

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the applicable trustee; or

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any agent of either of them.

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Redemption

Provisions relating to the redemption of debt securities will be set forth in the applicable prospectus supplement. Unless Duke Energy states otherwise in the applicable prospectus supplement, Duke Energy may redeem debt securities only upon notice mailed at least thirty (30), but not more than sixty (60) days before the date fixed for redemption. Unless Duke Energy states otherwise in the applicable prospectus supplement, that notice may state that the redemption will be conditional upon the Indenture Trustee, or the applicable paying agent, receiving sufficient funds to pay the principal, premium and interest on those debt securities on the date fixed for redemption and that if the Indenture Trustee or the applicable paying agent does not receive those funds, the redemption notice will not apply, and Duke Energy will not be required to redeem those debt securities. If less than all the debt securities of a series are to be redeemed, the particular debt securities to be redeemed shall be selected by the Indenture Trustee by such method as the Indenture Trustee shall deem fair and appropriate.

Duke Energy will not be required to:

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issue, register the transfer of, or exchange any debt securities of a series during the fifteen (15) day period before the date the notice is mailed identifying the debt securities of that series that have been selected for redemption; or

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register the transfer of or exchange any debt security of that series selected for redemption except the unredeemed portion of a debt security being partially redeemed.

Consolidation, Merger, Conveyance or Transfer

The Indenture provides that Duke Energy may consolidate or merge with or into, or convey or transfer all or substantially all of its properties and assets to, another corporation or other entity. Any successor must, however, assume Duke Energy’s obligations under the Indenture and the debt securities issued under it, and Duke Energy must deliver to the Indenture Trustee a statement by certain of its officers and an opinion of counsel that affirm compliance with all conditions in the Indenture relating to the transaction. When those conditions are satisfied, the successor will succeed to and be substituted for Duke Energy under the Indenture, and Duke Energy will be relieved of its obligations under the Indenture and the debt securities.

Modification; Waiver

Duke Energy may modify the Indenture with the consent of the holders of a majority in principal amount of the outstanding debt securities of all series of debt securities that are affected by the modification, voting as one class. The consent of the holder of each outstanding debt security affected is, however, required to:

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change the maturity date of the principal or any installment of principal or interest on that debt security;

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reduce the principal amount, the interest rate or any premium payable upon redemption of that debt security;

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reduce the amount of principal due and payable upon acceleration of maturity;

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change the currency of payment of principal, premium or interest on that debt security;

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impair the right to institute suit to enforce any such payment on or after the maturity date or redemption date;

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reduce the percentage in principal amount of debt securities of any series required to modify the Indenture, waive compliance with certain restrictive provisions of the Indenture or waive certain defaults; or

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with certain exceptions, modify the provisions of the Indenture governing modifications of the Indenture or governing waiver of covenants or past defaults.

In addition, Duke Energy may modify the Indenture for certain other purposes, without the consent of any holders of debt securities.

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Unless Duke Energy states otherwise in the applicable prospectus supplement, the holders of a majority in principal amount of the outstanding debt securities of any series may waive, for that series, Duke Energy’s compliance with certain restrictive provisions of the Indenture. The holders of a majority in principal amount of the outstanding debt securities of all series under the Indenture with respect to which a default has occurred and is continuing, voting as one class, may waive that default for all those series, except a default in the payment of principal or any premium or interest on any debt security or a default with respect to a covenant or provision which cannot be modified without the consent of the holder of each outstanding debt security of the series affected.

Events of Default

The following are events of default under the Indenture with respect to any series of debt securities, unless Duke Energy states otherwise in the applicable prospectus supplement:

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failure to pay principal of or any premium on any debt security of that series when due;

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failure to pay when due any interest on any debt security of that series that continues for sixty (60) days; for this purpose, the date on which interest is due is the date on which Duke Energy is required to make payment following any deferral of interest payments by it under the terms of debt securities that permit such deferrals;

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failure to make any sinking fund payment when required for any debt security of that series that continues for sixty (60) days;

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failure to perform any other covenant in the Indenture (other than a covenant expressly included solely for the benefit of other series) that continues for ninety (90) days after the Indenture Trustee or the holders of at least 33% of the outstanding debt securities of that series give Duke Energy and, if such notice is given by the holders, the Indenture Trustee written notice of the default; and

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certain bankruptcy, insolvency or reorganization events with respect to Duke Energy.

In the case of the fourth event of default listed above, the Indenture Trustee may extend the grace period. In addition, if holders of a particular series have given a notice of default, then holders of at least the same percentage of debt securities of that series, together with the Indenture Trustee, may also extend the grace period. The grace period will be automatically extended if Duke Energy has initiated and is diligently pursuing corrective action within the original grace period.

Duke Energy may establish additional events of default for a particular series and, if established, any such events of default will be described in the applicable prospectus supplement.

If an event of default with respect to debt securities of a series occurs and is continuing, then the Indenture Trustee or the holders of at least 33% in principal amount of the outstanding debt securities of that series may declare the principal amount of all debt securities of that series to be immediately due and payable. However, that event of default will be considered waived at any time after the declaration, but before a judgment or decree for payment of the money due has been obtained if:

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Duke Energy has paid or deposited with the Indenture Trustee all overdue interest, the principal and any premium due otherwise than by the declaration and any interest on such amounts, and any interest on overdue interest, to the extent legally permitted, in each case with respect to that series, and all amounts due to the Indenture Trustee; and

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all events of default with respect to that series, other than the nonpayment of the principal that became due solely by virtue of the declaration, have been cured or waived.

The Indenture Trustee is under no obligation to exercise any of its rights or powers at the request or direction of any holders of debt securities unless those holders have offered the Indenture Trustee security or indemnity against the costs, expenses and liabilities which it might incur as a result. The holders of a majority in principal amount of the outstanding debt securities of any series have, with certain exceptions, the right to direct the time, method and place of conducting any proceedings for any remedy available to the Indenture Trustee or the exercise of any power of the Indenture Trustee with respect to those debt securities. The Indenture Trustee may withhold notice of any default, except a default in the payment of principal or

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interest, or in the payment of any sinking or purchase fund installment, from the holders of any series if the Indenture Trustee in good faith considers it in the interest of the holders to do so.

The holder of any debt security will have an absolute and unconditional right to receive payment of the principal, any premium and, within certain limitations, any interest on that debt security on its maturity date or redemption date and to enforce those payments.

Duke Energy is required to furnish each year to the Indenture Trustee a statement by certain of its officers to the effect that it is not in default under the Indenture or, if there has been a default, specifying the default and its status.

Payments; Paying Agent

The paying agent will pay the principal of any debt securities only if those debt securities are surrendered to it. The paying agent will pay interest on debt securities issued as global securities by wire transfer to the holder of those global securities. Unless Duke Energy states otherwise in the applicable prospectus supplement, the paying agent will pay interest on debt securities that are not in global form at its office or, at Duke Energy’s option:

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by wire transfer to an account at a banking institution in the United States that is designated in writing to the Indenture Trustee at least sixteen (16) days prior to the date of payment by the person entitled to that interest; or

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by check mailed to the address of the person entitled to that interest as that address appears in the security register for those debt securities.

Unless Duke Energy states otherwise in the applicable prospectus supplement, the Indenture Trustee will act as paying agent for that series of debt securities, and the principal corporate trust office of the Indenture Trustee will be the office through which the paying agent acts. Duke Energy may, however, change or add paying agents or approve a change in the office through which a paying agent acts.

Any money that Duke Energy has paid to the Indenture Trustee or a paying agent for principal, any premium or interest on any debt securities which remains unclaimed at the end of two years after that principal, premium or interest has become due will be repaid to Duke Energy at its request. After repayment to Duke Energy, holders should look only to Duke Energy for those payments.

Satisfaction and Discharge, Defeasance and Covenant Defeasance

Upon the written request of Duke Energy, the Indenture shall be satisfied and discharged (except as to certain surviving rights and obligations specified in the Indenture) when:

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either all debt securities have been delivered to the Indenture Trustee for cancellation or all debt securities not delivered to the Indenture Trustee for cancellation are due and payable within one year (at maturity or due to redemption) and Duke Energy has deposited with the Indenture Trustee money or government obligations sufficient to pay and discharge such debt securities to the applicable maturity or redemption date (including principal, any premium and interest thereon);

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Duke Energy has paid or caused to be paid all other sums payable under the Indenture by Duke Energy; and

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Duke Energy has delivered to the Indenture Trustee an officers’ certificate and an opinion of counsel stating that all conditions precedent relating to the satisfaction and discharge of the Indenture have been complied with.

The Indenture provides that Duke Energy may be:

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discharged from its obligations, with certain limited exceptions, with respect to any series of debt securities, as described in the Indenture, such a discharge being called a “defeasance” in this prospectus; and

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released from its obligations under certain restrictive covenants especially established with respect to any series of debt securities, as described in the Indenture, such a release being called a “covenant defeasance” in this prospectus.

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Duke Energy must satisfy certain conditions to effect a defeasance or covenant defeasance. Those conditions include the irrevocable deposit with the Indenture Trustee, in trust, of money or government obligations which through their scheduled payments of principal and interest would provide sufficient money to pay the principal and any premium and interest on those debt securities on the maturity dates of those payments or upon redemption.

Following a defeasance, payment of the debt securities defeased may not be accelerated because of an event of default under the Indenture. Following a covenant defeasance, the payment of debt securities may not be accelerated by reference to the covenants from which Duke Energy has been released. A defeasance may occur after a covenant defeasance.

Under current United States federal income tax laws, a defeasance would be treated as an exchange of the relevant debt securities in which holders of those debt securities might recognize gain or loss. In addition, the amount, timing and character of amounts that holders would thereafter be required to include in income might be different from that which would be includible in the absence of that defeasance. Duke Energy urges investors to consult their own tax advisors as to the specific consequences of a defeasance, including the applicability and effect of tax laws other than United States federal income tax laws.

Under current United States federal income tax law, unless accompanied by other changes in the terms of the debt securities, a covenant defeasance should not be treated as a taxable exchange.

Concerning the Indenture Trustee

The Bank of New York Mellon Trust Company, N.A., is the Indenture Trustee. Duke Energy and certain of its affiliates maintain deposit accounts and banking relationships with the Indenture Trustee or its affiliates. The Indenture Trustee 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.

The Indenture Trustee will perform only those duties that are specifically set forth in the Indenture unless an event of default under the Indenture occurs and is continuing. In case an event of default occurs and is continuing, the Indenture Trustee will exercise the same degree of care as a prudent individual would exercise in the conduct of his or her own affairs.

Upon any application by Duke Energy to the Indenture Trustee to take any action under any provision of the Indenture, Duke Energy is required to furnish to the Indenture Trustee such certificates and opinions as may be required under the Trust Indenture Act of 1939, as amended.

PLAN OF DISTRIBUTION

We may sell securities to one or more underwriters or dealers for public offering and sale by them, or we may sell the securities to investors directly or through agents. The prospectus supplement relating to the securities being offered will set forth the terms of the offering and the method of distribution and will identify any firms acting as underwriters, dealers or agents in connection with the offering, including:

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the name or names of any underwriters;

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the purchase price of the securities and the proceeds to us from the sale;

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any underwriting discounts and other items constituting underwriters’ compensation;

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any public offering price;

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any discounts or concessions allowed or reallowed or paid to dealers; and

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any securities exchange or market on which the securities may be listed.

Only those underwriters identified in the prospectus supplement are deemed to be underwriters in connection with the securities offered in the prospectus supplement.

We may distribute the securities from time to time in one or more transactions at a fixed price or prices, which may be changed, or at prices determined as the prospectus supplement specifies. We may sell securities through forward contracts or similar arrangements. In connection with the sale of securities, underwriters,

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dealers or agents may be deemed to have received compensation from us in the form of underwriting discounts or commissions and also may receive commissions from securities purchasers for whom they may act as agent. Underwriters may sell the securities to or through dealers, and such dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters or commissions from the purchasers for whom they may act as agent.

We may sell the securities directly or through agents we designate from time to time. Any agent involved in the offer or sale of the securities covered by this prospectus will be named in a prospectus supplement relating to such securities. Commissions payable by us to agents will be set forth in a prospectus supplement relating to the securities being offered. Unless otherwise indicated in a prospectus supplement, any such agents will be acting on a best-efforts basis for the period of their appointment.

Some of the underwriters, dealers or agents and some of their affiliates who participate in the securities distribution may engage in other transactions with, and perform other services for, us and our subsidiaries or affiliates in the ordinary course of business.

Any underwriting or other compensation which we pay to underwriters or agents in connection with the securities offering, and any discounts, concessions or commissions which underwriters allow to dealers, will be set forth in the applicable prospectus supplement. Underwriters, dealers and agents participating in the securities distribution may be deemed to be underwriters, and any discounts and commissions they receive and any profit they realize on the resale of the securities may be deemed to be underwriting discounts and commissions under the Securities Act of 1933, as amended. Underwriters, and their controlling persons, and agents may be entitled, under agreements we enter into with them, to indemnification against certain civil liabilities, including liabilities under the Securities Act of 1933, as amended.

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.

VALIDITY OF THE SECURITIES

Robert T. Lucas III, Esq., who is Deputy General Counsel of Duke Energy Business Services LLC, the service company affiliate of Duke Energy Corporation, and/or counsel named in the applicable prospectus supplement, will issue an opinion about the validity of the securities we are offering in the applicable prospectus supplement. Counsel named in the applicable prospectus supplement will pass upon certain legal matters on behalf of any underwriters.

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 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 became effective and all later documents filed with the SEC, in all cases as updated and superseded by later

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filings with the SEC. Duke Energy incorporates by reference the documents listed below and any future documents filed by Duke Energy Corporation 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:

•

Annual Report on Form 10-K for the year ended December 31, 2021, including the portions of our definitive proxy statement filed on Schedule 14A on March 21, 2022 that are incorporated by reference therein;

•

Quarterly Reports on Form 10-Q for the quarterly periods ended March 31, 2022 and June 30, 2022; and

•

Current Reports on Form 8-K filed on February 24, 2022, March 15, 2022 (only Item 2.06), March 21, 2022, March 22, 2022, May 11, 2022, June 15, 2022, August 1, 2022 and August 11, 2022.

We will provide you 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
(704) 382-3853 or (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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Source: View Original Filing on SEC EDGAR

FAQ

What securities is Duke Energy (DUK) offering in this prospectus supplement?

Duke Energy is offering $1.0 billion of 4.95% Senior Notes due 2035 and $750 million of 5.70% Senior Notes due 2055.

How will Duke Energy use the net proceeds from the offering?

Net proceeds of approximately $1.7 billion will be used to repay at maturity $650 million of 0.90% Senior Notes due Sept 15, 2025, $500 million of 5.00% Senior Notes due Dec 8, 2025, to repay a portion of commercial paper and for general corporate purposes.

When will interest on the new notes be paid and when do they mature?

Interest on both series is payable semi-annually on March 15 and September 15, beginning March 15, 2026. The 2035 Notes mature on Sept 15, 2035 and the 2055 Notes mature on Sept 15, 2055.

Do the Notes have any collateral or sinking fund?

No. The Notes are unsecured, have no sinking fund and rank equally with Duke Energy’s other unsecured and unsubordinated indebtedness.

Will the Notes trade on an exchange?

No. The Notes are a new issue with no established trading market and will not be listed on any securities exchange or included in any automated quotation system.

Are there any conflicts of interest disclosed in the offering?

Yes. Certain underwriters or their affiliates may hold commercial paper or the senior notes being repaid and thus could receive proceeds of the offering.

Duke Energy issues 4.95% (2035) and 5.70% (2055) senior notes to refinance 2025 maturities

Rhea-AI Filing Summary

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Negative

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FAQ

What securities is Duke Energy (DUK) offering in this prospectus supplement?

How will Duke Energy use the net proceeds from the offering?

When will interest on the new notes be paid and when do they mature?

Do the Notes have any collateral or sinking fund?

Will the Notes trade on an exchange?

Are there any conflicts of interest disclosed in the offering?

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Duke Energy issues 4.95% (2035) and 5.70% (2055) senior notes to refinance 2025 maturities

Rhea-AI Filing Summary

Positive

Negative

Insights

Debt Capital Markets Analyst neutral

Corporate Governance / Treasury Specialist neutral

FAQ

What securities is Duke Energy (DUK) offering in this prospectus supplement?

How will Duke Energy use the net proceeds from the offering?

When will interest on the new notes be paid and when do they mature?

Do the Notes have any collateral or sinking fund?

Will the Notes trade on an exchange?

Are there any conflicts of interest disclosed in the offering?

NASDAQ:DUKH

DUKH Rankings

DUKH Latest News

DUKH Latest SEC Filings

DUKH Stock Data