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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 9, 2020

Commission file number | Registrant, State of Incorporation or Organization, Address of Principal Executive Offices, and Telephone Number | IRS Employer Identification No.
1-32853 | DUKE ENERGY CORPORATION (a Delaware corporation) 550 South Tryon Street Charlotte, North Carolina 28202-1803 704-382-3853 | 20-2777218

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240. 13e-4(c))

SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:

Title of each class | Trading Symbol(s) | Name of each exchange on which registered
Common stock, $0.001 par value | DUK | New York Stock Exchange LLC
5.125% Junior Subordinated Debentures due January 15, 2073 | DUKH | New York Stock Exchange LLC
5.625% Junior Subordinated Debentures due September 15, 2078 | DUKB | New York Stock Exchange LLC
Depositary Shares, each representing a 1/1,000th interest in a share of 5.75% Series A Cumulative Redeemable Perpetual Preferred Stock, par value $0.001 per share | DUK PR A | New York Stock Exchange LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Item 7.01. Regulation FD Disclosure.

On September 9, 2020, Duke Energy Corporation posted an investor presentation to its website at www.duke-energy.com/our-company/investors. A copy of these slides is attached hereto as Exhibit 99.1. The information in Exhibit 99.1 is being furnished pursuant to this Item 7.01. In accordance with General Instruction B.2 of Form 8-K, the information in Item 7.01 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section.

Item 9.01 Financial Statements and Exhibits.

(d) | Exhibits
99.1 | September 2020 Investor Update of Duke Energy Corporation dated September 9, 2020 (furnished pursuant to Item 7.01)
104 | Cover Page Interactive Data File (embedded within the Inline XBRL document).

2

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

| DUKE ENERGY CORPORATION
Date: September 9, 2020 | By: | /s/ David S. Maltz
| Name: | David S. Maltz
| Title: | Vice President, Legal, Chief Governance Officer and Assistant Corporate Secretary