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Organization and Basis of Presentation
 3 Months Ended
Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Organization and Basis of Presentation ORGANIZATION AND BASIS OF PRESENTATION
BASIS OF PRESENTATION
These Condensed Consolidated Financial Statements have been prepared in accordance with GAAP for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, these Condensed Consolidated Financial Statements do not include all information and notes required by GAAP for annual financial statements and should be read in conjunction with the Consolidated Financial Statements in the Duke Energy's Annual Report on Form 10-K for the year ended December 31, 2022.
The information in these combined notes relates to each of the Duke Energy Registrants as noted in the Index to Combined Notes to Condensed Consolidated Financial Statements. However, none of the registrants make any representations as to information related solely to Duke Energy or the subsidiaries of Duke Energy other than itself.
These Condensed Consolidated Financial Statements, in the opinion of the respective companies’ management, reflect all normal recurring adjustments necessary to fairly present the financial position and results of operations of each of the Duke Energy Registrants. Amounts reported in Duke Energy’s interim Condensed Consolidated Statements of Operations and each of the Subsidiary Registrants’ interim Condensed Consolidated Statements of Operations and Comprehensive Income are not necessarily indicative of amounts expected for the respective annual periods due to effects of seasonal temperature variations on energy consumption, regulatory rulings, timing of maintenance on electric generating units, changes in mark-to-market valuations, changing commodity prices and other factors.
In preparing financial statements that conform to GAAP, management must make estimates and assumptions that affect the reported amounts of assets and liabilities, the reported amounts of revenues and expenses and the disclosure of contingent assets and liabilities at the date of the financial statements. Actual results could differ from those estimates.
BASIS OF CONSOLIDATION
These Condensed Consolidated Financial Statements include, after eliminating intercompany transactions and balances, the accounts of the Duke Energy Registrants and subsidiaries or VIEs where the respective Duke Energy Registrants have control. See Note 12 for additional information on VIEs. These Condensed Consolidated Financial Statements also reflect the Duke Energy Registrants’ proportionate share of certain jointly owned generation and transmission facilities.
Discontinued Operations
Duke Energy has elected to present cash flows of discontinued operations combined with cash flows of continuing operations. Unless otherwise noted, the notes to these condensed consolidated financial statements exclude amounts related to discontinued operations for all periods presented. For the three months ended March 31, 2023, and 2022, the Loss From Discontinued Operations, net of tax on Duke Energy's Condensed Consolidated Statements of Operations includes amounts related to noncontrolling interests. A portion of Noncontrolling interests on Duke Energy's Condensed Consolidated Balance Sheets relates to discontinued operations for the periods presented. See Note 2 for discussion of discontinued operations related to the Commercial Renewables Disposal Groups.
NONCONTROLLING INTEREST
Duke Energy maintains a controlling financial interest in certain less than wholly owned nonregulated subsidiaries. As a result, Duke Energy consolidates these subsidiaries and presents the third-party investors' portion of Duke Energy's net income (loss), net assets and comprehensive income (loss) as noncontrolling interest. Noncontrolling interest is included as a component of equity on the Condensed Consolidated Balance Sheets. Operating agreements of Duke Energy's subsidiaries with noncontrolling interest allocate profit and loss based on their pro rata shares of the ownership interest in the respective subsidiary. Therefore, Duke Energy allocates net income or loss and other comprehensive income or loss of these subsidiaries to the owners based on their pro rata shares.
CASH, CASH EQUIVALENTS AND RESTRICTED CASH
Duke Energy, Duke Energy Carolinas, Progress Energy, Duke Energy Progress and Duke Energy Florida have restricted cash balances related primarily to collateral assets, escrow deposits and VIEs. See Notes 10 and 12 for additional information. Restricted cash amounts are included in Other within Current Assets and Other Noncurrent Assets on the Condensed Consolidated Balance Sheets. The following table presents the components of cash, cash equivalents and restricted cash included in the Condensed Consolidated Balance Sheets.
March 31, 2023December 31, 2022
DukeDukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyDukeEnergyProgressEnergyEnergy
EnergyCarolinasEnergyProgressFlorida
Energy(a)
CarolinasEnergyProgressFlorida
Current Assets
Cash and cash equivalents$451 $24 $93 $50 $26 $409 $44 $108 $49 $45 
Other42 5 37 14 18 82 8 74 28 41 
Other Noncurrent Assets
Other11 1 4 4 — 11 1 2 2 — 
Total cash, cash equivalents and restricted cash$504 $30 $134 $68 $44 $502 $53 $184 $79 $86 
(a)    Certain prior year balances have been adjusted for held for sale presentation. See Note 2 for additional information.
INVENTORY
Provisions for inventory write-offs were not material at March 31, 2023, and December 31, 2022. The components of inventory are presented in the tables below.
 March 31, 2023
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions) EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Materials and supplies $2,739 $948 $1,273 $842 $431 $116 $355 $12 
Coal772 309 233 128 105 29 202 — 
Natural gas, oil and other fuel354 46 206 112 94 12 3 87 
Total inventory $3,865 $1,303 $1,712 $1,082 $630 $157 $560 $99 
 December 31, 2022
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions) EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Materials and supplies $2,604 $876 $1,232 $819 $413 $105 $342 $12 
Coal620 253 190 99 91 34 144 — 
Natural gas, oil and other fuel360 35 157 88 69 5 3 160 
Total inventory $3,584 $1,164 $1,579 $1,006 $573 $144 $489 $172 
OTHER NONCURRENT ASSETS
Duke Energy, through a nonregulated subsidiary, was the winner of the Carolina Long Bay offshore wind auction in May 2022 and recorded an asset of $150 million related to the arrangement in Other within Other noncurrent assets. In November 2022, Duke Energy committed to a plan to sell the Commercial Renewables business segment, excluding the offshore wind contract for Carolina Long Bay, which was moved to the Electric Utilities and Infrastructure (EU&I) segment. See Notes 2 and 3 for further information.
ACCOUNTS PAYABLE
Duke Energy maintains a supply chain finance program (the “program”) with a global financial institution. The program is voluntary and allows Duke Energy suppliers, at their sole discretion, to sell their receivables from Duke Energy to the financial institution at a rate that leverages Duke Energy’s credit rating and which may result in favorable terms compared to the rate available to the supplier on their own credit rating. Suppliers participating in the program determine at their sole discretion which invoices they will sell to the financial institution. Duke Energy confirms invoices sold by suppliers under the program to the financial institution and pays the financial institution based on commercial terms negotiated between Duke Energy and the supplier regardless of program participation. Suppliers’ decisions on which invoices are sold do not impact Duke Energy’s payment terms. The commercial terms negotiated between Duke Energy and its suppliers are consistent regardless of whether the supplier elects to participate in the program. Duke Energy does not issue any guarantees with respect to the program and does not participate in negotiations between suppliers and the financial institution. Duke Energy does not have an economic interest in the supplier’s decision to participate in the program and receives no interest, fees or other benefit from the financial institution based on supplier participation in the program.
The following table represents the changes in confirmed obligations outstanding for the three months ended March 31, 2023, and 2022.
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Confirmed obligations outstanding at the December 31, 2021$19 $— $9 $— $9 $6 $— $4 
Invoices confirmed during the period31 2 11 2 9 6 2 11 
Confirmed invoices paid during the period(31)(1)(11)(1)(10)(8)(1)(10)
Confirmed obligations outstanding at March 31, 2022$19 $1 $9 $1 $8 $4 $1 $5 
Confirmed obligations outstanding at the December 31, 2022$87 $6 $19 $8 $11 $5 $— $57 
Invoices confirmed during the period59 10 22 11 11 1 — 25 
Confirmed invoices paid during the period(94)(9)(26)(13)(13)(6)— (53)
Confirmed obligations outstanding at March 31, 2023$52 $7 $15 $6 $9 $— $— $29 
NEW ACCOUNTING STANDARDS
No new accounting standards were adopted by the Duke Energy Registrants in 2023.