Form 8-K

8-K — Duke Energy CORP

Accession: 0001104659-26-091159

Filed: 2026-08-05

Period: 2026-08-05

CIK: 0001326160

SIC: 4931 (ELECTRIC & OTHER SERVICES COMBINED)

Item: Regulation FD Disclosure

Item: Financial Statements and Exhibits

Documents

8-K — tm2622337d1_8k.htm (Primary)

EX-99.1 — EXHIBIT 99.1 (tm2622337d1_ex99-1.htm)

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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):

August 5, 2026

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)

525 South Tryon Street

Charlotte,

North Carolina 28202

800-488-3853

20-2777218

1-3382

DUKE

ENERGY PROGRESS, LLC

(a North

Carolina limited liability company)

411

Fayetteville Street

Raleigh, North

Carolina 27601

800-488-3853

56-0165465

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:

Registrant

Title of each class

Trading

Symbol(s)

Name

of each exchange on

which registered

Duke Energy

Common Stock, $0.001 par value

DUK

New York Stock Exchange LLC

Duke Energy

5.625% Junior Subordinated Debentures due September 15, 2078

DUKB

New York Stock Exchange LLC

Duke Energy

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

Duke Energy

3.10% Senior Notes due 2028

DUK 28A

New York Stock Exchange LLC

Duke Energy

3.85% Senior Notes due 2034

DUK

New York Stock Exchange LLC

Duke Energy

3.75% Senior Notes due 2031

DUK31A

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 August 5, 2026, Duke Energy Progress, LLC (“DEP”)

filed a Comprehensive Revenue Requirement Settlement (the “Comprehensive Settlement”) with the Public Staff – North

Carolina Utilities Commission (the “Public Staff”) and other intervenors (together, “Intervening Parties”) in

connection with DEP's application for adjustment of rates and charges and for Performance Based Regulation (“PBR”) filed with

the North Carolina Utilities Commission (“NCUC”) on November 20, 2025. Testimony consistent with the Comprehensive Settlement

will be filed by the end of the week. The Comprehensive Settlement resolves all revenue requirement items in the case including, among

other things, (i) a return on equity of 9.8% based on a capital structure of 53% equity component in the capital structure, (ii) a

retail rate base of approximately $17.8 billion for the historic base case, (iii) approximately $3.4 billion of capital in the multi-year

rate plan (“MYRP”) along with an annual MYRP refund mechanism, and (iv) agreement to evaluate a one-year rate case stay

out under which DEP would not file a base rate case earlier than November 1, 2028, so long as the NCUC grants deferral of cost of

certain new generating assets.

The Comprehensive Settlement

is expected to result in one-time pre-tax accounting charges of approximately $30 million, to be recognized in 2026. These charges

are expected to be treated as special items and excluded from adjusted earnings.

An overview providing additional detail on the Comprehensive Settlement

is attached to this Form 8-K as Exhibit 99.1. The information in Exhibit 99.1 is being furnished pursuant to this Item

7.01 and shall not be deemed “filed” for purposes of Section 18 of the Securities and 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

Duke Energy Progress, LLC Fact Sheet Regarding 2026 Comprehensive Settlement.

104

Cover Page Interactive Data File (the cover page XBRL tags are embedded in the Inline XBRL document).

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: August 5, 2026

By:

/s/ David

S. Maltz

Name: David S. Maltz

Title: Vice President, Chief Governance Officer, Corporate Secretary and Mergers and Acquisitions

DUKE ENERGY PROGRESS, LLC

Date: August 5, 2026

By:

/s/ David S. Maltz

Name: David S. Maltz

Title: Vice President, Chief Governance Officer, Corporate Secretary and Mergers and Acquisitions

EX-99.1 — EXHIBIT 99.1

EX-99.1

Filename: tm2622337d1_ex99-1.htm · Sequence: 2

Exhibit 99.1

Duke Energy Progress, LLC

Updates Regarding the 2025 Rate Case Filings

in North Carolina

(Docket E-2 Sub 1380)

Background:

· On November 20, 2025, Duke Energy Progress (“DEP” or the

“Company”) filed a rate case with the North Carolina Utilities Commission (“NCUC”) seeking approval for increases

in retail revenues. The filing included requests for Performance Based Regulation (“PBR”) mechanisms, featuring a 2-year Multi-Year

Rate Plan (“MYRP”) as well as residential decoupling, performance incentive mechanisms (“PIMs”), and an earnings

sharing mechanism (“ESM”).

◦ The initial filing requested an approximately 15.1% overall increase in retail revenues over the two-year period, or approximately

$729 million.

◦ The rate case filing requested an overall rate of return of 7.92% based upon an ROE of 10.95% with a 53% equity component in the capital

structure1 as compared to the ROE approved in the last rate case of 9.8% with a 53% equity component in the capital structure.

◦ The historic base case in the initial filing is based on North Carolina retail rate base of approximately $17.9 billion as of December 31,

2024, adjusted for known and measurable changes projected through March 31, 2026.

◦ The MYRP includes impacts of approximately $3.9 billion (NC retail allocation) of capital projects that are projected to go in service

over the 2-year MYRP period.

· On July 24, 2026, the Company filed an updated revenue requirement request

as part of the Company’s rebuttal testimony, which reduced the requested increase to approximately $610 million over the two-year

period, which is an approximate 12.3% overall increase in retail revenues.

o As part of the revised revenue requirement request, the Company has requested a 10.48% ROE with a 53% equity component in the capital

structure and made certain other adjustments to reduce the requested increase.

· On August 5, 2026, DEP and the Public Staff, as well as other intervening

parties (together, the “Intervening Parties”), filed a Comprehensive Revenue Requirement Settlement (“Comprehensive

Settlement”) with the NCUC resolving all remaining revenue requirement issues in the case.

Major Components of the Comprehensive Settlement

· The Comprehensive Settlement resolves all revenue requirement issues between

the Company and the Intervening Parties in the case, including agreement on 9.8% ROE and 53% equity component in the capital structure

and various accounting and plant items.

· The historic base case is based on North Carolina retail rate base of approximately

$17.8 billion

· The MYRP will include approximately $3.4 billion of capital (NC retail allocation)

projected to go in service over the 2-year MYRP period, along with an annual MYRP refund mechanism (based upon both the number of projects

and amount of capital placed in service in a rate year compared to what was approved for that rate year).

· The Comprehensive Settlement resolves issues related to the mechanics of

the decoupling mechanism and ESM.

· DEP will extend the amortization of deferred coal ash costs from five years

to eight years.

1 Overall rate of return includes the provisions of the

CCR settlement which includes a 150 basis point reduction in the ROE with a 52% equity component for the capital structure allowed for

coal ash deferrals during the amortization period.

· DEP will increase the flow back of production tax credits (PTC) to customers

from $40 million annually in the Company’s original request to $120 million annually for 2027 and 2028.

· DEP agrees to a $10 million shareholder contribution to support bill assistance

through the Share the Light Fund and health and safety repairs through the Helping Home Fund.

· The Company will evaluate the potential to delay its next base rate case

filing until no earlier than November 1, 2028. The Company has indicated that it can agree to this delay if permitted to defer costs

directly associated with the Commission-approved Person County CC1 and Marshall CTs, from the time each plant is placed in service until

such costs can be reflected in new base rates with a full Weighted Average Cost of Capital (“WACC”) during the deferral period.

· The parties agree to support a separate proceeding to evaluate a large load

tariff, with the intention to complete that proceeding prior to new rates going into effect.

· The Comprehensive Settlement results in a revised revenue requirement increase

of $338 million over the two-year period, an average annual rate increase of 3.4% over two years.

Additional Information:

· The Comprehensive Settlement is subject to the review and approval of the

NCUC.

· An evidentiary hearing to review the Comprehensive Settlement and other issues

in the case is scheduled to begin on August 11, 2026.

· Subject to NCUC approval, DEP has requested total Year 1 rates to be in effect

no later than January 1, 2027.

· The Comprehensive Settlement is expected to result in one-time pre-tax accounting

charges of approximately $30 million, to be recognized by DEP in 2026. These charges are expected to be treated as special items and excluded

from adjusted earnings.

Reconciliation of Company Request to Reflect the Comprehensive Settlement

($ in millions)

Historic

Base

Case

Year 1 -

MYRP

Year 1

Total

Year 2 –

MYRP

Combined

Total

Original requested revenue requirement increase

$ 401

$ 127

$ 528

$ 200

$ 729

Post-filing adjustments by Company

(82 )

(17 )

(99 )

(19 )

(119 )

Revised Company requested revenue requirement increase

$ 319

$ 110

$ 429

$ 181

$ 610

Reduced ROE (10.48% to 9.8%)

(84 )

(4 )

(87 )

(6 )

(93 )

MYRP adjustments

(12 )

(22 )

(34 )

Extended amortization of deferred coal ash costs

(28 )

Increased PTC giveback

(80 )

Other stipulated adjustments

(37 )

Revised revenue requirement increase after Comprehensive Settlement

$ 90

$ 94

$ 185

$ 153

$ 338

Net annualized customer rate increase

1.8 %

1.9 %

3.7 %

3.1 %

6.8 %

Note: Totals may not add due to rounding

Cautionary Statement Regarding Forward-Looking

Statements

This document includes forward-looking statements within the meaning

of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements

are based on management’s beliefs and assumptions. These forward-looking statements are identified by terms and phrases such as

"anticipate," "believe," "intend," "estimate," "expect," "continue," "should,"

"could," "may," "plan," "project," "predict," "will," "potential,"

"forecast," "target," "outlook," "guidance," and similar expressions. 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 risks and uncertainties are identified and discussed in Duke Energy’s Form 10-K

for the year ended December 31, 2025, and subsequent quarterly reports filed with the Securities and Exchange Commission (“SEC”)

and available at the SEC’s website at www.sec.gov. In light of these risks, uncertainties and assumptions, the events described

in the forward-looking statements might not occur or might occur to a different extent or at a different time than Duke Energy has described.

Duke Energy expressly disclaims 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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Cover

Aug. 05, 2026

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Entity File Number

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Entity Registrant Name

DUKE

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Entity Central Index Key

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Entity Tax Identification Number

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Entity Incorporation, State or Country Code

Entity Address, Address Line One

525 South Tryon Street

Entity Address, City or Town

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Entity Address, State or Province

Entity Address, Postal Zip Code

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City Area Code

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Local Phone Number

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Progress Energy [Member]

Document Information [Line Items]

Entity File Number

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Entity Registrant Name

DUKE

ENERGY PROGRESS, LLC

Entity Tax Identification Number

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Entity Incorporation, State or Country Code

Entity Address, Address Line One

411

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Entity Address, City or Town

Raleigh

Entity Address, State or Province

Entity Address, Postal Zip Code

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City Area Code

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Local Phone Number

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Common Stock [Member]

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Trading Symbol

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Security Exchange Name

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Document Information [Line Items]

Title of 12(b) Security

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Security Exchange Name

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Trading Symbol

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Security Exchange Name

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Trading Symbol

DUK

Security Exchange Name

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