ENTERGY MISSISSIPPI LLC

NOTE 13. ASSET RETIREMENT OBLIGATIONS (Entergy Corporation, Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy)

See Note 9 to the financial statements in the Form 10-K for a discussion of asset retirement obligations. The following is an update to that discussion.

Nuclear Plant Decommissioning

In first quarter 2024, Entergy Arkansas recorded a revision to its estimated decommissioning cost liabilities for ANO 1 and 2 as a result of a revised decommissioning cost study. The revised estimates resulted in a $14.4 million decrease in its decommissioning cost liabilities, along with corresponding decreases in the related asset retirement cost assets that will be depreciated over the remaining useful lives of the units.

NOTE 14. ACQUISITIONS (Entergy Corporation and Entergy Arkansas)

Acquisitions

Walnut Bend Solar

In June 2020, Entergy Arkansas signed an agreement for the purchase of an approximately 100 MW to-be-constructed solar photovoltaic energy facility, Walnut Bend Solar facility, to be sited on approximately 1,000 acres in Lee County, Arkansas. Acquisition of the Walnut Bend Solar facility was initially approved by the APSC in July 2021. The agreement was amended by the parties in February 2023 and the revised agreement was approved by the APSC in July 2023. In February 2024, Entergy Arkansas made an initial payment of approximately $170 million to acquire the facility. The project will achieve commercial operation once testing is completed and the project has achieved substantial completion. Entergy Arkansas currently expects the project to achieve commercial operation in second quarter 2024, at which time a substantial completion payment of approximately $20 million is expected.

In the opinion of the management of Entergy Corporation, Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy, the accompanying unaudited financial statements contain all adjustments (consisting primarily of normal recurring accruals and reclassification of previously reported amounts to conform to current classifications) necessary for a fair statement of the results for the interim periods presented. Entergy’s business is subject to seasonal fluctuations, however, with peak periods occurring typically during the first and third quarters. The results for the interim periods presented should not be used as a basis for estimating results of operations for a full year.

Part I, Item 3. Quantitative and Qualitative Disclosures About Market Risk

See the “Market and Credit Risk Sensitive Instruments” section of Entergy Corporation and Subsidiaries Management’s Financial Discussion and Analysis.

Part I, Item 4. Controls and Procedures

Disclosure Controls and Procedures

As of March 31, 2024, evaluations were performed under the supervision and with the participation of Entergy Corporation, Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, Entergy Texas, and System Energy (each individually a “Registrant” and collectively the “Registrants”) management, including their respective Principal Executive Officers (PEO) and Principal Financial Officers (PFO). The evaluations assessed the effectiveness of the Registrants’ disclosure controls and procedures. Based on the evaluations, each PEO and PFO has concluded that, as to the Registrant or Registrants for which they serve as PEO or PFO, the Registrant’s or Registrants’ disclosure controls and procedures are effective to ensure that information required to be disclosed by each Registrant in reports that it files or submits under the Securities Exchange Act of 1934 is recorded, processed, summarized, and reported within the time periods specified in Securities and Exchange Commission rules and forms; and that the Registrant’s or Registrants’ disclosure controls and procedures are also effective in reasonably assuring that such information is accumulated and communicated to the Registrant’s or Registrants’ management, including their respective PEOs and PFOs, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control over Financial Reporting

Under the supervision and with the participation of each Registrant’s management, including its respective PEO and PFO, each Registrant evaluated changes in internal control over financial reporting that occurred during the quarter ended March 31, 2024 and found no change that has materially affected, or is reasonably likely to materially affect, internal control over financial reporting.

ENTERGY ARKANSAS, LLC AND SUBSIDIARIES

Entergy Arkansas experienced a net loss of $32.3 million for the three months ended March 31, 2024 compared to net income of $59.4 million for the three months ended March 31, 2023 primarily due to a $131.8 million ($99.1 million net-of-tax) charge to reflect the write-off of a previously recorded regulatory asset as a result of an adverse decision in the opportunity sales proceeding in March 2024. Partially offsetting the charge to Entergy Arkansas’s earnings were higher retail electric price and higher volume/weather. See Note 2 to the financial statements herein and in the Form 10-K for discussion of theopportunity sales proceeding.

Entergy Arkansas’s results include revenues from rate mechanisms designed to recover fuel, purchased power, and other costs such that the revenues and expenses associated with these items generally offset and do not affect net income. “Fuel, rider, and other revenues that do not significantly affect net income” includes the revenue variance associated with these items.

The retail electric price variance is primarily due to an increase in formula rate plan rates effective January 2024. See Note 2 to the financial statements in the Form 10-K for discussion of the 2023 formula rate plan filing.

The volume/weather variance is primarily due to the effect of more favorable weather on residential sales and an increase in industrial usage. The increase in industrial usage is primarily due to an increase in demand from large industrial customers, primarily in the technology industry, and an increase in demand from small industrial customers. The increased usage from these industrial customers has a relatively smaller effect on operating revenues because a larger portion of the revenues from those customers comes from fixed charges.

Total electric energy sales for Entergy Arkansas for the three months ended March 31, 2024 and 2023 are as follows:

See Note 12 to the financial statements herein for additional discussion of Entergy Arkansas’s operating revenues.

Fuel, fuel-related expenses, and gas purchased for resale includes a credit of $9 million, recorded in first quarter 2024, for costs related to net metering. The costs were incurred in 2023 and included within Entergy Arkansas’s annual redetermination of its energy cost recovery rider filed in March 2024 due to a change in law in the state of Arkansas. See Note 2 to the financial statements herein for discussion of the March 2024 energy cost recovery rider filing.

•the effects of recording a final judgment in first quarter 2023 to resolve claims in the ANO damages case against the DOE related to spent nuclear fuel storage costs. The damages awarded included the reimbursement of approximately $10.3 million of spent nuclear fuel storage costs previously recorded as other operation and maintenance expenses. See Note 8 to the financial statements in the Form 10-K for discussion of the spent nuclear fuel litigation;

•an increase of $3.8 million in energy efficiency expenses primarily due tothe timing of recovery from customers;

•an increase of $2.5 million in power delivery expenses primarily due to higher vegetation maintenance costs due to timing;

•an increase of $2.3 million in compensation and benefits costs primarily due to higher healthcare claims activity in 2024; and

•an increase of $2.2 million in contract costs related to operational performance, customer service, and organizational health initiatives.

Asset write-offs includes a $131.8 million ($99.1 million net-of-tax) charge to reflect the write-off of a previously recorded regulatory asset as a result of an adverse decision in the opportunity sales proceeding in March 2024. See Note 2 to the financial statements herein and in the Form 10-K for discussion of the opportunity sales proceeding.

Depreciation and amortization expenses increased primarily due to additions to plant in service.

Entergy Arkansas records a regulatory charge or credit for the difference between asset retirement obligation-related expenses and nuclear decommissioning trust earnings plus asset retirement obligation-related costs collected in revenue.

Other income increased primarily due to changes in decommissioning trust fund activity, including portfolio rebalancing of the decommissioning trust funds in first quarter 2024.

The effective income tax rate was 24.8% for the first quarter 2024. The difference in the effective income tax rate for the first quarter 2024 versus the federal statutory rate of 21% was primarily due to certain book and tax differences related to utility plant items and the accrual for state income taxes, partially offset by the amortization of state accumulated deferred income taxes as a result of tax rate changes.

The effective income tax rate was 14.9% for the first quarter 2023. The difference in the effective income tax rate for the first quarter 2023 versus the federal statutory rate of 21% was primarily due to the amortization of state accumulated deferred income taxes as a result of tax rate changes and certain book and tax differences related to utility plant items, partially offset by the accrual for state income taxes.

Net cash flow provided by operating activities increased $13.2 million for the three months ended March 31, 2024 compared to the three months ended March 31, 2023 primarily due to higher collections from customers. The increase was partially offset by:

•the timing of recovery of fuel and purchased power costs. See Note 2 to the financial statements herein and in the Form 10-K for a discussion of fuel and purchased power cost recovery;

•the refund of $41.7 million received from System Energy in January 2023 related to the sale-leaseback renewal costs and depreciation litigation as calculated in System Energy’s January 2023 compliance report filed with the FERC. The refund was subsequently applied to the under-recovered deferred fuel balance. See Note 2 to the financial statements in the Form 10-K for further discussion of the refund and the related proceedings;

•the timing of payments to vendors;

•an increase of $23 million in interest paid; and

•an increase of $5.6 million in pension contributions in 2024. See “MANAGEMENT’S FINANCIAL DISCUSSION AND ANALYSIS -Critical Accounting Estimates” in the Form 10-K and Note 6 to the financial statements herein for a discussion of qualified pension and other postretirement benefits funding.

Net cash flow used in investing activities increased $65.4 million for the three months ended March 31, 2024 compared to the three months ended March 31, 2023 primarily due to the initial payment of approximately $169.7 million in February 2024 for the purchase of the Walnut Bend Solar facility. The increase was partially offset by:

•a decrease of $53 million in distribution construction expenditures primarily due to lower capital expenditures for storm restoration in 2024;

•a decrease of $27.2 million as a result of fluctuations in nuclear fuel activity due to variations from year to year in the timing and pricing of fuel reload requirements, materials and services deliveries, and the timing of cash payments during the nuclear fuel cycle;

•a decrease of $8.1 million in nuclear construction expenditures primarily due to decreased spending on various nuclear projects in 2024; and

•a decrease of $5.8 million in non-nuclear generation construction expenditures primarily due to a lower scope of work, including during plant outages, performed in 2024 as compared to 2023.

See Note 14 to the financial statements herein for discussion of the Walnut Bend Solar facility purchase.

Net cash flow provided by financing activities decreased $60.2 million for the three months ended March 31, 2024 compared to the three months ended March 31, 2023 primarily due to the issuance of $425 million of 5.15% Series mortgage bonds in January 2023 and net repayments of $70.2 million in 2024 compared to net borrowings of $31.5 million in 2023 on the nuclear fuel company variable interest entity’s credit facility. The decrease was partially offset by:

•a capital contribution of approximately $275 million received from Entergy Corporation in 2024 in anticipation of upcoming expenditures, including the acquisition of the Walnut Bend Solar facility;

•$80 million in common equity distributions paid in 2023 in order to maintain Entergy Arkansas’s capital structure;

•the issuance of $70 million of 5.54% Series O notes by the Entergy Arkansas nuclear fuel company variable interest entity in March 2024; and

Decreases in Entergy Arkansas’s payable to the money pool are a use of cash flow, and Entergy Arkansas’s payable to the money pool decreased $145.4 million for the three months ended March 31, 2024 compared to decreasing by $180.8 million for the three months ended March 31, 2023. The money pool is an intercompany cash management program that makes possible intercompany borrowing and lending arrangements, and the money pool and other borrowing arrangements are designed to reduce the Registrant Subsidiaries’ dependence on external short-term borrowings.

See Note 4 to the financial statements herein and Note 5 to the financial statements in the Form 10-K for more details on long-term debt.

Entergy Arkansas’s debt to capital ratio is shown in the following table. The decrease in the debt to capital ratio for Entergy Arkansas is primarily due to the capital contribution of $275 million received from Entergy Corporation in 2024.

Net debt consists of debt less cash and cash equivalents. Debt consists of short-term borrowings, finance lease obligations, and long-term debt, including the currently maturing portion. Capital consists of debt and equity. Net capital consists of capital less cash and cash equivalents. Entergy Arkansas uses the debt to capital ratio in analyzing its financial condition and believes it provides useful information to its investors and creditors in evaluating Entergy Arkansas’s financial condition. The net debt to net capital ratio is a non-GAAP measure. Entergy Arkansas also uses the net debt to net capital ratio in analyzing its financial condition and believes it provides useful information to its investors and creditors in evaluating Entergy Arkansas’s financial condition because net debt indicates Entergy Arkansas’s outstanding debt position that could not be readily satisfied by cash and cash equivalents on hand.

See “MANAGEMENT’S FINANCIAL DISCUSSION AND ANALYSIS -Liquidity and Capital Resources” in the Form 10-K for a discussion of Entergy Arkansas’s uses and sources of capital. The following are updates to the information provided in the Form 10-K.

Entergy Arkansas’s receivables from or (payables to) the money pool were as follows:

Entergy Arkansas has a credit facility in the amount of $150 million scheduled to expire in June 2028. Entergy Arkansas also has a $25 million credit facility scheduled to expire in April 2026. The $150 million credit facility includes fronting commitments for the issuance of letters of credit against $5 million of the borrowing capacity of the facility. As of March 31, 2024, there were no cash borrowings and no letters of credit outstanding under the credit facilities. In addition, Entergy Arkansas is a party to an uncommitted letter of credit facility as a means to post collateral to support its obligations to MISO. As of March 31, 2024, $2.1 million in letters of credit were outstanding under Entergy Arkansas’s uncommitted letter of credit facility. See Note 4 to the financial statements herein for discussion of the credit facilities.

The Entergy Arkansas nuclear fuel company variable interest entity has a credit facility in the amount of $80 million scheduled to expire in June 2025. As of March 31, 2024, there were no loans outstanding under the credit facility for the Entergy Arkansas nuclear fuel company variable interest entity. See Note 4 to the financial statements herein for discussion of the nuclear fuel company variable interest entity credit facility.

See “MANAGEMENT’S FINANCIAL DISCUSSION AND ANALYSIS – State and Local Rate Regulation and Fuel-Cost Recovery” in the Form 10-K for a discussion of state and local rate regulation and fuel-cost recovery. The following are updates to that discussion.

Fuel and purchased power cost recovery

Energy Cost Recovery Rider

In March 2024 Entergy Arkansas filed its annual redetermination of its energy cost rate pursuant to the energy cost recovery rider, which reflected a decrease in the rate from $0.01883 per kWh to $0.00882 per kWh. Due to a change in law in the state of Arkansas, the annual redetermination included $9 million, recorded as a credit to fuel expense in first quarter 2024, for recovery attributed to net metering costs in 2023. The primary reason for the rate decrease is a large over-recovered balance as a result of lower natural gas prices in 2023. To mitigate the effect of projected increases in natural gas prices in 2024, Entergy Arkansas adjusted the over-recovered balance included in the March 2024 annual redetermination filing by $43.7 million. This adjustment is expected to reduce the rate change that will be reflected in the 2025 energy cost rate redetermination. The redetermined rate of $0.00882 per kWh became effective with the first billing cycle in April 2024 through the normal operation of the tariff.

Opportunity Sales Proceeding

See Note 2 to the financial statements in the Form 10-K for discussion of the Entergy Arkansas opportunity sales proceeding. As discussed in the Form 10-K, in September 2020, Entergy Arkansas filed a complaint in the U.S. District Court for the Eastern District of Arkansas challenging the APSC’s denial of recovery of $135 million of payments to other Utility operating companies in December 2018 relating to off-system sales of electricity from 2002-2009, as ordered by the FERC. The complaint also involved a challenge to the $13.7 million, plus interest, of related refunds ordered by the APSC and paid by Entergy Arkansas in August 2020. The trial was held in February 2023. Following the trial, Entergy Arkansas filed a motion with the United States Court of Appeals for the Eighth District to expedite the appeal filed by Arkansas Electric Energy Consumers, Inc. The United States Court of Appeals for the Eighth District granted Entergy Arkansas’s request, and oral arguments were held in June 2023. In August 2023 the United States Court of Appeals for the Eighth District affirmed the order of the court denying Arkansas Electric Energy Consumers, Inc.’s motion to intervene.

In March 2024 the U.S. District Court for the Eastern District of Arkansas issued a judgment in favor of the APSC and against Entergy Arkansas. In March 2024 Entergy Arkansas filed a notice of appeal and a motion to expedite oral arguments with the United States Court of Appeals for the Eighth District and the court granted the motion to expedite and issued an order establishing that the briefing will occur in May 2024 through July 2024. As a result of the adverse decision by the U.S. District Court for the Eastern District of Arkansas, Entergy Arkansas concluded that it could no longer support the recognition of its $131.8 million regulatory asset reflecting the previously-expected recovery of a portion of the costs at issue in the opportunity sales proceeding and recorded a $131.8 million ($99.1 million net-of-tax) charge to earnings in first quarter 2024.

See “MANAGEMENT’S FINANCIAL DISCUSSION AND ANALYSIS – Nuclear Matters” in the Form 10-K for a discussion of nuclear matters.

See “MANAGEMENT’S FINANCIAL DISCUSSION AND ANALYSIS - Critical Accounting Estimates” in the Form 10-K for a discussion of the estimates and judgments necessary in Entergy Arkansas’s accounting for nuclear decommissioning costs, utility regulatory accounting, taxation and uncertain tax positions, qualified pension and other postretirement benefits, and other contingencies.

See the “New Accounting Pronouncements” section of Note 1 to the financial statements in the Form 10-K for a discussion of new accounting pronouncements and the “New Accounting Pronouncements” section of Entergy Corporation and Subsidiaries Management’s Financial Discussion and Analysis herein for updates to the discussion of new accounting pronouncements.