# EDGAR Filing Document

**Accession Number:** 0000003153
**File Stem:** 0000092122-26-000034
**Filing Date:** 2026-4
**Character Count:** 509923
**Document Hash:** f892a25c5b0eb53b1a87ca940373f282
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000092122-26-000034.hdr.sgml**: 20260430

**ACCESSION NUMBER**: 0000092122-26-000034

**CONFORMED SUBMISSION TYPE**: 10-Q

**PUBLIC DOCUMENT COUNT**: 146

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260430

**DATE AS OF CHANGE**: 20260429

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOUTHERN CO
- **CENTRAL INDEX KEY:** 0000092122
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 580690070
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 10-Q
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-03526
- **FILM NUMBER:** 26918307

**BUSINESS ADDRESS:**
- **STREET 1:** 30 IVAN ALLEN JR. BLVD., N.W.
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308
- **BUSINESS PHONE:** 4045065000

**MAIL ADDRESS:**
- **STREET 1:** 30 IVAN ALLEN JR. BLVD., N.W.
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** GEORGIA POWER CO
- **CENTRAL INDEX KEY:** 0000041091
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 580257110
- **STATE OF INCORPORATION:** GA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 10-Q
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-06468
- **FILM NUMBER:** 26918310

**BUSINESS ADDRESS:**
- **STREET 1:** 241 RALPH MCGILL BOULEVARD
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308
- **BUSINESS PHONE:** 4045066526

**MAIL ADDRESS:**
- **STREET 1:** 241 RALPH MCGILL BOULEVARD
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOUTHERN POWER CO
- **CENTRAL INDEX KEY:** 0001160661
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 582598670

**FILING VALUES:**
- **FORM TYPE:** 10-Q
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-37803
- **FILM NUMBER:** 26918308

**BUSINESS ADDRESS:**
- **STREET 1:** 30 IVAN ALLEN JR. BLVD
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308
- **BUSINESS PHONE:** 4045065000

**MAIL ADDRESS:**
- **STREET 1:** 30 IVAN ALLEN JR. BLVD
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** SOUTHERN CO GAS
- **CENTRAL INDEX KEY:** 0001004155
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATURAL GAS DISTRIBUTION [4924]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 582210952
- **STATE OF INCORPORATION:** GA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 10-Q
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-14174
- **FILM NUMBER:** 26918311

**BUSINESS ADDRESS:**
- **STREET 1:** 30 IVAN ALLEN JR. BLVD
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308
- **BUSINESS PHONE:** 4045065000

**MAIL ADDRESS:**
- **STREET 1:** 30 IVAN ALLEN JR. BLVD
- **CITY:** ATLANTA
- **STATE:** GA
- **ZIP:** 30308

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** SOUTHERN Co GAS
- **DATE OF NAME CHANGE:** 20160711

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AGL RESOURCES INC
- **DATE OF NAME CHANGE:** 19951129
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ALABAMA POWER CO
- **CENTRAL INDEX KEY:** 0000003153
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 630004250
- **STATE OF INCORPORATION:** AL
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 10-Q
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-03164
- **FILM NUMBER:** 26918312

**BUSINESS ADDRESS:**
- **STREET 1:** 600 N 18TH ST
- **STREET 2:** P O BOX 2641
- **CITY:** BIRMINGHAM
- **STATE:** AL
- **ZIP:** 35291
- **BUSINESS PHONE:** 2052571000

**MAIL ADDRESS:**
- **STREET 1:** 600 N 18TH ST
- **CITY:** BIRMINGHAM
- **STATE:** AL
- **ZIP:** 35291
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MISSISSIPPI POWER CO
- **CENTRAL INDEX KEY:** 0000066904
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 640205820
- **STATE OF INCORPORATION:** MS
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 10-Q
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-11229
- **FILM NUMBER:** 26918309

**BUSINESS ADDRESS:**
- **STREET 1:** 2992 WEST BEACH
- **CITY:** GULFPORT
- **STATE:** MS
- **ZIP:** 39501
- **BUSINESS PHONE:** 2288641211

**MAIL ADDRESS:**
- **STREET 1:** 2992 WEST BEACH
- **CITY:** GULFPORT
- **STATE:** MS
- **ZIP:** 39501

?xml version='1.0' encoding='ASCII'? so-20260331

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM 10-Q**

☑ **QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)**

**OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the quarterly period ended March 31, 2026**

**OR**

☐ **TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)**

**OF THE SECURITIES EXCHANGE ACT OF 1934**

**For the transition period from <u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u> to<u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>**

---

| | | |
|:---|:---|:---|
| **Commission<br>File Number** | **Registrant,<br>State of Incorporation,<br>Address and Telephone Number** | **I.R.S. Employer<br>Identification No.** |

---

---

| | | |
|:---|:---|:---|
| 1-3526 | **The Southern Company** | 58-0690070 |

---

(A Delaware Corporation)

30 Ivan Allen Jr. Boulevard, N.W.

Atlanta, Georgia 30308

(404) 506-5000

---

| | | |
|:---|:---|:---|
| 1-3164 | **Alabama Power Company** | 63-0004250 |

---

(An Alabama Corporation)

600 North 18th Street

Birmingham, Alabama 35203

(205) 257-1000

---

| | | |
|:---|:---|:---|
| 1-6468 | **Georgia Power Company** | 58-0257110 |

---

(A Georgia Corporation)

241 Ralph McGill Boulevard, N.E.

Atlanta, Georgia 30308

(404) 506-6526

---

| | | |
|:---|:---|:---|
| 001-11229 | **Mississippi Power Company** | 64-0205820 |

---

(A Mississippi Corporation)

2992 West Beach Boulevard

Gulfport, Mississippi 39501

(228) 864-1211

---

| | | |
|:---|:---|:---|
| 001-37803 | **Southern Power Company** | 58-2598670 |

---

(A Delaware Corporation)

30 Ivan Allen Jr. Boulevard, N.W.

Atlanta, Georgia 30308

(404) 506-5000

---

| | | |
|:---|:---|:---|
| 1-14174 | **Southern Company Gas** | 58-2210952 |

---

(A Georgia Corporation)

Ten Peachtree Place, N.E.

Atlanta, Georgia 30309

(404) 584-4000

------

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*Securities registered pursuant to Section 12(b) of the Act:*

---

| | | | |
|:---|:---|:---|:---|
| **Registrant** | **Title of Each Class** | **Trading<br>Symbol(s)** | **Name of Each Exchange<br>on Which Registered** |
| The Southern Company | Common Stock, par value $5 per share | SO | New York Stock Exchange |
| The Southern Company | Common Stock, par value $5 per share | SO | (NYSE) |
| The Southern Company | Series 2017B 5.25% Junior Subordinated Notes due 2077 | SOJC | NYSE |
| The Southern Company | Series 2020A 4.95% Junior Subordinated Notes due 2080 | SOJD | NYSE |
| The Southern Company | Series 2020C 4.20% Junior Subordinated Notes due 2060 | SOJE | NYSE |
| The Southern Company | Series 2021B 1.875% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due 2081 | SO 81 | NYSE |
| The Southern Company | Series 2025A 6.50% Junior Subordinated Notes due 2085 | SOJF | NYSE |
| The Southern Company | 2025 Series A Corporate Units | SOMN | NYSE |
| Georgia Power Company | Series 2017A 5.00% Junior Subordinated Notes due 2077 | GPJA | NYSE |
| Southern Power Company | Series 2016B 1.850% Senior Notes due 2026 | SO/26A | NYSE |

---

Indicate by check mark whether the registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. Yes 🗹 No ◻

Indicate by check mark whether the registrants have submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrants were required to submit such files). Yes 🗹 No ◻

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Registrant** | **Large Accelerated Filer** | **Accelerated<br>Filer** | **Non-accelerated Filer** | **Smaller<br>Reporting<br>Company** | **Emerging<br>Growth<br>Company** |
| The Southern Company | X | | | | |
| Alabama Power Company | | | X | | |
| Georgia Power Company | | | X | | |
| Mississippi Power Company | | | X | | |
| Southern Power Company | | | X | | |
| Southern Company Gas | | | X | | |

---

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. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No 🗹 (Response applicable to all registrants.)

---

| | | |
|:---|:---|:---|
| **Registrant** | **Description of Common Stock** | **Shares Outstanding at**<br>**March 31, 2026** |
| The Southern Company | Par Value $5 Per Share | 1127301098 |
| Alabama Power Company | Par Value $40 Per Share | 30537500 |
| Georgia Power Company | Without Par Value | 9261500 |
| Mississippi Power Company | Without Par Value | 1121000 |
| Southern Power Company | Par Value $0.01 Per Share | 1000 |
| Southern Company Gas | Par Value $0.01 Per Share | 100 |

---

This combined Form 10-Q is separately filed by The Southern Company, Alabama Power Company, Georgia Power Company, Mississippi Power Company, Southern Power Company, and Southern Company Gas. Information contained herein relating to any individual registrant is filed by such registrant on its own behalf. Each registrant makes no representation as to information relating to the other registrants.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**TABLE OF CONTENTS**

---

| | | |
|:---|:---|:---|
| | | **<u>Page</u>** |
| | <u>[Definitions](#i505af990baee483db750d4302bd03c67_13)</u> | <u>[4](#i505af990baee483db750d4302bd03c67_13)</u> |
| | <u>[Cautionary Statement Regarding Forward-Looking Information](#i505af990baee483db750d4302bd03c67_16)</u> | <u>[7](#i505af990baee483db750d4302bd03c67_16)</u> |
| | **<u>PART I—FINANCIAL INFORMATION</u>** | |
| Item 1. | <u>[Financial Statements (Unaudited)](#i505af990baee483db750d4302bd03c67_22)</u> | <u>[9](#i505af990baee483db750d4302bd03c67_22)</u> |
| Item 2. | <u>[Management's Discussion and Analysis of Financial Condition and Results of Operations](#i505af990baee483db750d4302bd03c67_265)</u> | <u>[83](#i505af990baee483db750d4302bd03c67_265)</u> |
| Item 3. | <u>[Quantitative and Qualitative Disclosures about Market Risk](#i505af990baee483db750d4302bd03c67_433)</u> | <u>[122](#i505af990baee483db750d4302bd03c67_433)</u> |
| Item 4. | <u>[Controls and Procedures](#i505af990baee483db750d4302bd03c67_436)</u> | <u>[122](#i505af990baee483db750d4302bd03c67_436)</u> |
|  | **<u>PART II—OTHER INFORMATION</u>** |  |
| Item 1. | <u>[Legal Proceedings](#i505af990baee483db750d4302bd03c67_442)</u> | <u>[123](#i505af990baee483db750d4302bd03c67_442)</u> |
| Item 1A. | <u>[Risk Factors](#i505af990baee483db750d4302bd03c67_445)</u> | <u>[123](#i505af990baee483db750d4302bd03c67_445)</u> |
| Item 2. | Unregistered Sales of Equity Securities and Use of Proceeds | Inapplicable |
| Item 3. | Defaults Upon Senior Securities | Inapplicable |
| Item 4. | Mine Safety Disclosures | Inapplicable |
| Item 5. | <u>[Other Information](#i505af990baee483db750d4302bd03c67_448)</u> | <u>[123](#i505af990baee483db750d4302bd03c67_448)</u> |
| Item 6. | <u>[Exhibits](#i505af990baee483db750d4302bd03c67_454)</u> | <u>[123](#i505af990baee483db750d4302bd03c67_454)</u> |
|  | <u>[Signatures](#i505af990baee483db750d4302bd03c67_457)</u> | <u>[126](#i505af990baee483db750d4302bd03c67_457)</u> |

---

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**DEFINITIONS**

---

| | |
|:---|:---|
| **<u>Term</u>** | **<u>Meaning</u>** |
| 2022 ARP | Georgia Power's Alternate Rate Plan approved by the Georgia PSC in 2022 for the years 2023 through 2025 |
| 2023 IRP Update | Georgia Power's updated IRP filed in 2023 and approved by the Georgia PSC in 2024 as modified by a stipulation among Georgia Power, the staff of the Georgia PSC, and certain intervenors |
| AFUDC | Allowance for funds used during construction |
| AGL Services Company | AGL Services Company, Inc., the Southern Company Gas system service company and a wholly-owned subsidiary of Southern Company Gas |
| Alabama Power | Alabama Power Company |
| ARO | Asset retirement obligation |
| Atlanta Gas Light | Atlanta Gas Light Company, a wholly-owned subsidiary of Southern Company Gas |
| CAMT | Corporate alternative minimum tax |
| CCR | Coal combustion residuals |
| Chattanooga Gas | Chattanooga Gas Company, a wholly-owned subsidiary of Southern Company Gas |
| COD | Commercial operation date |
| CODM | Chief operating decision maker |
| CWIP | Construction work in progress |
| Dalton | City of Dalton, Georgia, an incorporated municipality in the state of Georgia, acting by and through its Board of Water, Light, and Sinking Fund Commissioners |
| Dalton Pipeline | A pipeline facility in Georgia in which Southern Company Gas has a 50% undivided ownership interest |
| DOE | U.S. Department of Energy |
| ECO Plan | Mississippi Power's environmental compliance overview plan |
| EPA | U.S. Environmental Protection Agency |
| EPS | Earnings per share |
| FCC | Federal Communications Commission |
| FERC | Federal Energy Regulatory Commission |
| FFB | Federal Financing Bank |
| Fitch | Fitch Ratings, Inc. |
| Form 10-K | Annual Report on Form 10-K of Southern Company, Alabama Power, Georgia Power, Mississippi Power, Southern Power, and Southern Company Gas for the year ended December 31, 2025, as applicable |
| GAAP | U.S. generally accepted accounting principles |
| Georgia Power | Georgia Power Company |
| Heating Degree Days | A measure of weather, calculated when the average daily temperatures are less than 65 degrees Fahrenheit |
| Heating Season | The period from November through March when Southern Company Gas' natural gas usage and operating revenues are generally higher |
| HLBV | Hypothetical liquidation at book value |
| IIC | Intercompany Interchange Contract |
| Internal Revenue Code | Internal Revenue Code of 1986, as amended |
| IRA | Inflation Reduction Act of 2022 |
| IRP | Integrated resource plan |
| ITC | Investment tax credit |
| KWH | Kilowatt-hour |
| LIFO | Last-in, first-out |
| LTSA | Long-term service agreement |
| MEAG Power | Municipal Electric Authority of Georgia |
| Mississippi Power | Mississippi Power Company |
| mmBtu | Million British thermal units |

---

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**DEFINITIONS**

**(continued)**

---

| | |
|:---|:---|
| **<u>Term</u>** | **<u>Meaning</u>** |
| Moody's | Moody's Investors Service, Inc. |
| MRA | Municipal and Rural Associations |
| MW | Megawatt |
| natural gas distribution utilities | Southern Company Gas' natural gas distribution utilities (Nicor Gas, Atlanta Gas Light, Virginia Natural Gas, and Chattanooga Gas) |
| NDR | Alabama Power's Natural Disaster Reserve |
| Nicor Gas | Northern Illinois Gas Company, a wholly-owned subsidiary of Southern Company Gas |
| N/M | Not meaningful |
| NRC | U.S. Nuclear Regulatory Commission |
| OBBB | One Big Beautiful Bill Act |
| OCI | Other comprehensive income |
| OPC | Oglethorpe Power Corporation (an electric membership corporation) |
| PEP | Mississippi Power's Performance Evaluation Plan |
| PowerSecure | PowerSecure, Inc., a wholly-owned subsidiary of Southern Company |
| PPA | Power purchase agreements, as well as, for Southern Power, contracts for differences that provide the owner of a renewable facility a certain fixed price for the electricity sold to the grid |
| PSC | Public Service Commission |
| PTC | Production tax credit |
| Rate CNP | Alabama Power's Rate Certificated New Plant, consisting of Rate CNP New Plant, Rate CNP Compliance, Rate CNP PPA, and Rate CNP Depreciation |
| Rate ECR | Alabama Power's Rate Energy Cost Recovery |
| Rate RSE | Alabama Power's Rate Stabilization and Equalization |
| Registrants | Southern Company, Alabama Power, Georgia Power, Mississippi Power, Southern Power Company, and Southern Company Gas |
| ROE | Return on equity |
| S&P | S&P Global Ratings, a division of S&P Global Inc. |
| SCS | Southern Company Services, Inc., the Southern Company system service company and a wholly-owned subsidiary of Southern Company |
| SEC | U.S. Securities and Exchange Commission |
| SEGCO | Southern Electric Generating Company, 50% owned by each of Alabama Power and Georgia Power |
| SNG | Southern Natural Gas Company, L.L.C., a pipeline system in which Southern Company Gas has a 50% ownership interest |
| SOFR | Secured Overnight Financing Rate |
| Southern Company | The Southern Company |
| Southern Company Gas | Southern Company Gas and its subsidiaries |
| Southern Company Gas Capital | Southern Company Gas Capital Corporation, a wholly-owned subsidiary of Southern Company Gas |
| Southern Company power pool | The operating arrangement whereby the integrated generating resources of the traditional electric operating companies and Southern Power (excluding subsidiaries) are subject to joint commitment and dispatch in order to serve their combined load obligations |
| Southern Company system | Southern Company, the traditional electric operating companies, Southern Power, Southern Company Gas, SEGCO, Southern Nuclear, SCS, Southern Linc, PowerSecure, and other subsidiaries |
| Southern Holdings | Southern Company Holdings, Inc., a wholly-owned subsidiary of Southern Company |
| Southern Linc | Southern Communications Services, Inc., a wholly-owned subsidiary of Southern Company,<br>doing business as Southern Linc |
| Southern Nuclear | Southern Nuclear Operating Company, Inc., a wholly-owned subsidiary of Southern Company |
| Southern Power | Southern Power Company and its subsidiaries |
| SouthStar | SouthStar Energy Services, LLC (a Marketer), a wholly-owned subsidiary of Southern Company Gas |

---

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**DEFINITIONS**

**(continued)**

---

| | |
|:---|:---|
| **<u>Term</u>** | **<u>Meaning</u>** |
| SP Solar | SP Solar Holdings I, LP, a limited partnership indirectly owning substantially all of Southern Power's solar and battery energy storage facilities, in which Southern Power has a 67% ownership interest |
| SP Wind | SP Wind Holdings II, LLC, a holding company owning a portfolio of eight operating wind facilities and wholly owned by Southern Power as of December 31, 2025, was previously in a tax equity arrangement where Southern Power was the controlling partner through December 31, 2025 |
| SRR | Mississippi Power's System Restoration Rider, a tariff for retail property damage cost recovery and reserve |
| Subsidiary Registrants | Alabama Power, Georgia Power, Mississippi Power, Southern Power, and Southern Company Gas |
| traditional electric operating companies | Alabama Power, Georgia Power, and Mississippi Power |
| U.S. Treasury | U.S. Department of the Treasury |
| VIE | Variable interest entity |
| Virginia Natural Gas | Virginia Natural Gas, Inc., a wholly-owned subsidiary of Southern Company Gas |
| Vogtle Owners | Georgia Power, OPC, MEAG Power, and Dalton |

---

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**CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION**

This Quarterly Report on Form 10-Q contains forward-looking statements. Forward-looking statements include, among other things, statements concerning regulated rates, the strategic goals for the business, customer and sales growth, economic conditions, including interest rates, tariffs, and inflation, cost recovery and other rate actions, current and proposed environmental regulations and related compliance plans and estimated expenditures, pending or potential litigation matters, access to sources of capital, financing activities, completion dates and costs of construction projects, filings with state and federal regulatory authorities, and estimated construction plans and expenditures. In some cases, forward-looking statements can be identified by terminology such as "may," "will," "could," "would," "should," "expects," "plans," "anticipates," "believes," "estimates," "projects," "predicts," "potential," or "continue" or the negative of these terms or other similar terminology. There are various factors that could cause actual results to differ materially from those suggested by the forward-looking statements; accordingly, there can be no assurance that such indicated results will be realized. These factors include:

• the impact of recent and future federal and state legal and regulatory changes, including tax, environmental, and other laws and regulations to which Southern Company and its subsidiaries are subject, as well as changes in application of existing laws, regulations, and guidance;

• the extent and timing of costs and legal requirements related to CCR;

• current and future litigation or regulatory investigations, proceedings, or inquiries;

• the effects, extent, and timing of the entry of additional competition in the markets in which Southern Company's subsidiaries operate, including from the development and deployment of alternative energy sources;

• variations in demand for electricity and natural gas, including uncertainties related to projected significant growth in electricity demand driven primarily by data centers and other large load customers, and the related requirement for substantial new generation and transmission investments, creating capital access and revenue recovery risks for the traditional electric operating companies;

• customer affordability matters;

• available sources and costs of natural gas and other fuels and commodities;

• the ability to complete necessary or desirable pipeline expansion or infrastructure projects, limits on pipeline capacity, public and policymaker support for such projects, and operational interruptions to natural gas distribution and transmission activities;

• transmission constraints;

• the ability to control costs and avoid cost and schedule overruns during the development, construction, and operation of facilities or other projects due to challenges which include, but are not limited to, changes in labor costs, availability, and productivity; challenges with the management of contractors or vendors; subcontractor performance; adverse weather conditions; shortages, delays, increased costs, or inconsistent quality of equipment, materials, and labor; contractor or supplier delay; the impacts of inflation and trade policies (including tariffs and other trade measures) of the United States and other countries; delays due to judicial or regulatory action; nonperformance under construction, operating, or other agreements; operational readiness, including specialized operator training and required site safety programs; engineering or design problems or any remediation related thereto; design and other licensing-based compliance matters; challenges with start-up activities, including major equipment failure, or system integration, and/or operational performance; challenges related to future epidemic or pandemic health events; continued public and policymaker support for projects; environmental and geological conditions; delays or increased costs to interconnect facilities to transmission grids; and increased financing costs as a result of changes in interest rates or as a result of project delays;

• legal proceedings and regulatory approvals and actions related to past, ongoing, and proposed construction projects, including state PSC or other applicable state regulatory agency approvals and FERC and NRC actions;

• the ability to construct facilities in accordance with the requirements of permits and licenses, to satisfy any environmental performance standards and the requirements of tax credits and other incentives, and to integrate facilities into the Southern Company system upon completion of construction;

• investment performance of the employee and retiree benefit plans and nuclear decommissioning trust funds and, with respect to retiree benefit plans, changes in actuarial assumptions and differences between the assumptions and actual values, any of the foregoing of which could cause additional funding requirements;

• advances in technology, including the pace and extent of development of low- to no-carbon energy and battery energy storage technologies and the impact of advancing technology on data center and other large load customer demand;

• performance of counterparties under ongoing renewable energy partnerships and development agreements;

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION**

&nbsp;&nbsp;&nbsp;&nbsp;**(continued)**

• state and federal rate regulations and the impact of pending and future rate cases and negotiations, including rate actions relating to ROE, equity ratios, additional generating capacity and transmission facilities, extension of retirement dates for fossil fuel plants, and fuel and other cost recovery mechanisms;

• the ability to successfully operate the traditional electric operating companies', SEGCO's, and Southern Power's generation, transmission, distribution, and battery energy storage facilities, as applicable, and Southern Company Gas' natural gas distribution and storage facilities and the successful performance of necessary corporate functions;

• the inherent risks involved in operating nuclear generating facilities;

• the inherent risks involved in generation, transmission, and distribution of electricity and transportation and storage of natural gas, including accidents, explosions, fires, mechanical problems, discharges or releases of toxic or hazardous substances or gases, and other environmental risks;

• the performance of projects undertaken by the non-utility businesses and the success of efforts to invest in and develop new opportunities;

• internal restructuring or other restructuring options that may be pursued;

• potential business strategies, including acquisitions or dispositions of assets or businesses, or interests therein, which cannot be assured to be completed or beneficial to Southern Company or its subsidiaries;

• the ability of counterparties of Southern Company and its subsidiaries to make payments as and when due and to perform as required;

• the ability to obtain new short- and long-term contracts with wholesale customers;

• the direct or indirect effect on the Southern Company system's business resulting from cyber intrusion or physical attack and the threat of cyber and physical attacks;

• global and U.S. economic conditions, including impacts from geopolitical conflicts, recession, inflation, changes in trade policies (including tariffs and other trade measures) of the United States and other countries, interest rate fluctuations, and financial market conditions, and the results of financing efforts;

• prolonged or recurring U.S. federal government shutdowns;

• access to capital markets and other financing sources;

• changes in Southern Company's and any of its subsidiaries' credit ratings;

• the ability of the traditional electric operating companies to obtain additional generating capacity (or sell excess generating capacity) at competitive prices;

• catastrophic events such as fires, including wildfires, land movement, earthquakes, explosions, floods, high winds, tornadoes, hurricanes and other storms, solar flares, droughts, future epidemic or pandemic health events, wars, political unrest, or other similar occurrences;

• the direct or indirect effects on the Southern Company system's business resulting from incidents affecting the U.S. electric grid, natural gas pipeline infrastructure, or operation of generating or storage resources;

• impairments of goodwill or long-lived assets;

• the effect of accounting pronouncements issued periodically by standard-setting bodies; and

• other factors discussed elsewhere herein and in other reports (including the Form 10-K) filed by the Registrants from time to time with the SEC.

**The Registrants expressly disclaim any obligation to update any forward-looking statements.**

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**PART I**

**Item 1. Financial Statements (Unaudited).**

---

| | |
|:---|:---|
| | **<u>Page</u>** |
| **<u>[The Southern Company and Subsidiary Companies:](#i505af990baee483db750d4302bd03c67_25)</u>** | |
| <u>[Condensed Consolidated Statements of Income](#i505af990baee483db750d4302bd03c67_28)</u> | <u>[10](#i505af990baee483db750d4302bd03c67_28)</u> |
| <u>[Condensed Consolidated Statements of Comprehensive Income](#i505af990baee483db750d4302bd03c67_31)</u> | <u>[11](#i505af990baee483db750d4302bd03c67_31)</u> |
| <u>[Condensed Consolidated Statements of Cash Flows](#i505af990baee483db750d4302bd03c67_34)</u> | <u>[12](#i505af990baee483db750d4302bd03c67_34)</u> |
| <u>[Condensed Consolidated Balance Sheets](#i505af990baee483db750d4302bd03c67_37)</u> | <u>[13](#i505af990baee483db750d4302bd03c67_37)</u> |
| <u>[Condensed Consolidated Statements of Stockholders' Equity](#i505af990baee483db750d4302bd03c67_40)</u> | <u>[15](#i505af990baee483db750d4302bd03c67_40)</u> |
| **<u>[Alabama Power Company:](#i505af990baee483db750d4302bd03c67_43)</u>** |  |
| <u>[Condensed Statements of Income](#i505af990baee483db750d4302bd03c67_46)</u> | <u>[16](#i505af990baee483db750d4302bd03c67_46)</u> |
| <u>[Condensed Statements of Comprehensive Income](#i505af990baee483db750d4302bd03c67_49)</u> | <u>[16](#i505af990baee483db750d4302bd03c67_49)</u> |
| <u>[Condensed Statements of Cash Flows](#i505af990baee483db750d4302bd03c67_52)</u> | <u>[17](#i505af990baee483db750d4302bd03c67_52)</u> |
| <u>[Condensed Balance Sheets](#i505af990baee483db750d4302bd03c67_55)</u> | <u>[18](#i505af990baee483db750d4302bd03c67_55)</u> |
| <u>[Condensed Statements of Common Stockholder's Equity](#i505af990baee483db750d4302bd03c67_58)</u> | <u>[20](#i505af990baee483db750d4302bd03c67_58)</u> |
| **<u>[Georgia Power Company:](#i505af990baee483db750d4302bd03c67_61)</u>** |  |
| <u>[Condensed Statements of Income](#i505af990baee483db750d4302bd03c67_64)</u> | <u>[21](#i505af990baee483db750d4302bd03c67_64)</u> |
| <u>[Condensed Statements of Comprehensive Income](#i505af990baee483db750d4302bd03c67_67)</u> | <u>[21](#i505af990baee483db750d4302bd03c67_67)</u> |
| <u>[Condensed Statements of Cash Flows](#i505af990baee483db750d4302bd03c67_70)</u> | <u>[22](#i505af990baee483db750d4302bd03c67_70)</u> |
| <u>[Condensed Balance Sheets](#i505af990baee483db750d4302bd03c67_73)</u> | <u>[23](#i505af990baee483db750d4302bd03c67_73)</u> |
| <u>[Condensed Statements of Common Stockholder's Equity](#i505af990baee483db750d4302bd03c67_76)</u> | <u>[25](#i505af990baee483db750d4302bd03c67_76)</u> |
| **<u>[Mississippi Power Company:](#i505af990baee483db750d4302bd03c67_79)</u>** |  |
| <u>[Condensed Statements of Income and Comprehensive Income](#i505af990baee483db750d4302bd03c67_82)</u> | <u>[26](#i505af990baee483db750d4302bd03c67_82)</u> |
| <u>[Condensed Statements of Cash Flows](#i505af990baee483db750d4302bd03c67_88)</u> | <u>[27](#i505af990baee483db750d4302bd03c67_88)</u> |
| <u>[Condensed Balance Sheets](#i505af990baee483db750d4302bd03c67_91)</u> | <u>[28](#i505af990baee483db750d4302bd03c67_91)</u> |
| <u>[Condensed Statements of Common Stockholder's Equity](#i505af990baee483db750d4302bd03c67_94)</u> | <u>[30](#i505af990baee483db750d4302bd03c67_94)</u> |
| **<u>[Southern Power Company and Subsidiary Companies:](#i505af990baee483db750d4302bd03c67_97)</u>** |  |
| <u>[Condensed Consolidated Statements of Income](#i505af990baee483db750d4302bd03c67_100)</u> | <u>[31](#i505af990baee483db750d4302bd03c67_100)</u> |
| <u>[Condensed Consolidated Statements of Comprehensive Income (Loss)](#i505af990baee483db750d4302bd03c67_103)</u> | <u>[31](#i505af990baee483db750d4302bd03c67_103)</u> |
| <u>[Condensed Consolidated Statements of Cash Flows](#i505af990baee483db750d4302bd03c67_106)</u> | <u>[32](#i505af990baee483db750d4302bd03c67_106)</u> |
| <u>[Condensed Consolidated Balance Sheets](#i505af990baee483db750d4302bd03c67_109)</u> | <u>[33](#i505af990baee483db750d4302bd03c67_109)</u> |
| <u>[Condensed Consolidated Statements of Stockholders' Equity](#i505af990baee483db750d4302bd03c67_112)</u> | <u>[35](#i505af990baee483db750d4302bd03c67_112)</u> |
| **<u>[Southern Company Gas and Subsidiary Companies:](#i505af990baee483db750d4302bd03c67_115)</u>** |  |
| <u>[Condensed Consolidated Statements of Income](#i505af990baee483db750d4302bd03c67_118)</u> | <u>[36](#i505af990baee483db750d4302bd03c67_118)</u> |
| <u>[Condensed Consolidated Statements of Comprehensive Income](#i505af990baee483db750d4302bd03c67_121)</u> | <u>[36](#i505af990baee483db750d4302bd03c67_121)</u> |
| <u>[Condensed Consolidated Statements of Cash Flows](#i505af990baee483db750d4302bd03c67_124)</u> | <u>[37](#i505af990baee483db750d4302bd03c67_124)</u> |
| <u>[Condensed Consolidated Balance Sheets](#i505af990baee483db750d4302bd03c67_127)</u> | <u>[38](#i505af990baee483db750d4302bd03c67_127)</u> |
| <u>[Condensed Consolidated Statements of Stockholder's Equity](#i505af990baee483db750d4302bd03c67_130)</u> | <u>[40](#i505af990baee483db750d4302bd03c67_130)</u> |
| **<u>[Combined Notes to the Condensed Financial Statements](#i505af990baee483db750d4302bd03c67_133)</u>** | <u>[41](#i505af990baee483db750d4302bd03c67_133)</u> |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

---

| | | |
|:---|:---|:---|
|  | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
|  | **2026** | 2025 |
|  | *(in millions)* | *(in millions)* |
| **Operating Revenues:** |  |  |
| Retail electric revenues | $**4640** | $4601 |
| Wholesale electric revenues | **965** | 744 |
| Other electric revenues | **265** | 242 |
| Natural gas revenues (includes alternative revenue programs of $(2) and $(19), respectively) | **2191** | 1839 |
| Other revenues | **336** | 349 |
| Total operating revenues | **8397** | 7775 |
| **Operating Expenses:** |  |  |
| Fuel | **1491** | 1292 |
| Purchased power | **244** | 250 |
| Cost of natural gas | **926** | 674 |
| Cost of other sales | **181** | 199 |
| Other operations and maintenance | **1653** | 1619 |
| Depreciation and amortization | **1420** | 1286 |
| Taxes other than income taxes | **464** | 445 |
| Total operating expenses | **6379** | 5765 |
| **Operating Income** | **2018** | 2010 |
| **Other Income and (Expense):** |  |  |
| Allowance for equity funds used during construction | **121** | 73 |
| Earnings from equity method investments | **50** | 32 |
| Interest expense, net of amounts capitalized | **(778)** | (714) |
| Other income (expense), net | **155** | 149 |
| Total other income and (expense) | **(452)** | (460) |
| **Earnings Before Income Taxes** | **1566** | 1550 |
| Income taxes | **228** | 280 |
| **Consolidated Net Income** | **1338** | 1270 |
| Net loss attributable to noncontrolling interests | **(18)** | (64) |
| **Consolidated Net Income Attributable to<br> Southern Company** | $**1356** | $1334 |
| **Common Stock Data:** |  |  |
| Earnings per share - |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Basic | $**1.21** | $1.21 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Diluted | $**1.20** | $1.21 |
| Average number of shares of common stock outstanding (in millions) |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Basic | **1124** | 1100 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Diluted | **1128** | 1105 |

---

The accompanying notes as they relate to Southern Company are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Consolidated Net Income** | $**1338** | $1270 |
| Other comprehensive income: |  |  |
| &nbsp;&nbsp;&nbsp;Qualifying hedges: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Changes in fair value, net of tax of $(1) and $5, respectively | **(3)** | 14 |
| &nbsp;&nbsp;&nbsp;&nbsp;Reclassification adjustment for amounts included in net income, <br>&nbsp;&nbsp;&nbsp;&nbsp;net of tax of $1 and $(4), respectively | **4** | (12) |
| &nbsp;&nbsp;&nbsp;Pension and other postretirement benefit plans: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Benefit plan net gain (loss), net of tax of $— and $—, respectively | **1** | 1 |
| Total other comprehensive income | **2** | 3 |
| **Comprehensive Income** | **1340** | 1273 |
| Comprehensive loss attributable to noncontrolling interests | **(18)** | (64) |
| **Consolidated Comprehensive Income Attributable to<br> Southern Company** | $**1358** | $1337 |

---

The accompanying notes as they relate to Southern Company are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Activities:** |  |  |
| Consolidated net income | $**1338** | $1270 |
| Adjustments to reconcile consolidated net income to net cash provided from operating activities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization, total | **1580** | 1411 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income taxes | **168** | 351 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Allowance for equity funds used during construction | **(121)** | (73) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pension, postretirement, and other employee benefits | **(149)** | (149) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Settlement of asset retirement obligations | **(133)** | (134) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Stock based compensation expense | **97** | 90 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Storm damage cost recovery – long-term | **(93)** | (173) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other, net | **(25)** | (1) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes in certain current assets and liabilities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Receivables | **124** | 7 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Retail fuel cost under recovery | **63** | 71 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Prepayments | **(98)** | (120) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Materials and supplies | **(85)** | 11 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Natural gas for sale, net of temporary LIFO liquidation | **355** | 365 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current assets | **(27)** | 66 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accounts payable | **(555)** | (394) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued taxes | **(408)** | (418) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued compensation | **(599)** | (537) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued interest | **(180)** | (82) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Customer refunds | **5** | (95) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Natural gas cost over recovery | **(27)** | (179) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current liabilities | **(4)** | (37) |
| Net cash provided from operating activities | **1226** | 1250 |
| **Investing Activities:** |  |  |
| Property additions | **(2944)** | (2437) |
| Nuclear decommissioning trust fund purchases | **(442)** | (361) |
| Nuclear decommissioning trust fund sales | **442** | 361 |
| Cost of removal, net of salvage | **(166)** | (168) |
| Change in construction payables, net | **(251)** | (161) |
| Other investing activities | **(60)** | (68) |
| Net cash used for investing activities | **(3421)** | (2834) |
| **Financing Activities:** |  |  |
| Increase (decrease) in notes payable, net | **653** | (841) |
| Proceeds — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Long-term debt | **2390** | 4567 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Short-term borrowings | **350** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Common stock | **535** | 30 |
| Redemptions and repurchases — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Long-term debt | **(1322)** | (35) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Short-term borrowings | **(50)** |  |
| Distributions to noncontrolling interests | **(47)** | (37) |
| Payment of common stock dividends | **(776)** | (736) |
| Other financing activities | **(191)** | (133) |
| Net cash provided from financing activities | **1542** | 2815 |
| **Net Change in Cash, Cash Equivalents, and Restricted Cash** | **(653)** | 1231 |
| **Cash, Cash Equivalents, and Restricted Cash at Beginning of Period** | **1640** | 1101 |
| **Cash, Cash Equivalents, and Restricted Cash at End of Period** | $**987** | $2332 |
| **Supplemental Cash Flow Information:** |  |  |
| Cash paid (received) during the period for — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest (net of $51 and $29 capitalized for 2026 and 2025, respectively) | $**901** | $756 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income taxes, net (excludes credit transfers) | **—** | (1) |
| Noncash transactions — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued property additions at end of period | **1049** | 940 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets obtained under operating leases | **41** | 87 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets obtained under finance leases | **2** | 13 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Issuance of common stock under dividend reinvestment plan | **54** | 55 |

---

The accompanying notes as they relate to Southern Company are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Assets** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Assets:** |  |  |
| Cash and cash equivalents | $**981** | $1639 |
| Receivables — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Customer accounts | **2405** | 2251 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unbilled revenues | **740** | 931 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under recovered fuel clause revenues | **299** | 316 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other accounts and notes | **524** | 655 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accumulated provision for uncollectible accounts | **(95)** | (84) |
| Materials and supplies | **2297** | 2202 |
| Fossil fuel for generation | **727** | 735 |
| Natural gas for sale | **145** | 396 |
| Prepaid expenses | **411** | 327 |
| Assets from risk management activities, net of collateral | **35** | 63 |
| Regulatory assets – asset retirement obligations | **353** | 353 |
| Other regulatory assets | **706** | 709 |
| Other current assets | **433** | 424 |
| Total current assets | **9961** | 10917 |
| **Property, Plant, and Equipment:** |  |  |
| In service | **149086** | 146114 |
| Less: Accumulated depreciation | **45186** | 43483 |
| Plant in service, net of depreciation | **103900** | 102631 |
| Other utility plant, net | **—** | 307 |
| Nuclear fuel, at amortized cost | **920** | 897 |
| Construction work in progress | **11282** | 10534 |
| Total property, plant, and equipment | **116102** | 114369 |
| **Other Property and Investments:** |  |  |
| Goodwill | **5161** | 5161 |
| Nuclear decommissioning trusts, at fair value | **2888** | 2947 |
| Equity investments in unconsolidated subsidiaries | **1365** | 1318 |
| Other intangible assets, net of amortization of $450 and $444, respectively | **294** | 300 |
| Miscellaneous property and investments | **706** | 714 |
| Total other property and investments | **10414** | 10440 |
| **Deferred Charges and Other Assets:** |  |  |
| Operating lease right-of-use assets, net of amortization | **1351** | 1358 |
| Deferred charges related to income taxes | **1026** | 948 |
| Prepaid pension costs | **3369** | 3257 |
| Unamortized loss on reacquired debt | **183** | 187 |
| Deferred under recovered fuel clause revenues | **210** | 252 |
| Regulatory assets – asset retirement obligations, deferred | **5198** | 5129 |
| Other regulatory assets, deferred | **7683** | 7427 |
| Other deferred charges and assets | **1534** | 1436 |
| Total deferred charges and other assets | **20554** | 19994 |
| **Total Assets** | $**157031** | $155720 |

---

The accompanying notes as they relate to Southern Company are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Liabilities and Stockholders' Equity** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Liabilities:** |  |  |
| Securities due within one year | $**5701** | $6220 |
| Notes payable | **1673** | 722 |
| Accounts payable | **2909** | 3710 |
| Customer deposits | **478** | 475 |
| Accrued taxes — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued income taxes | **66** | 22 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other accrued taxes | **557** | 982 |
| Accrued interest | **627** | 807 |
| Accrued compensation | **761** | 1418 |
| Asset retirement obligations | **659** | 662 |
| Liabilities from risk management activities, net of collateral | **134** | 118 |
| Operating lease obligations | **203** | 197 |
| Natural gas cost over recovery | **131** | 158 |
| Other regulatory liabilities | **228** | 240 |
| Other current liabilities | **1191** | 1157 |
| Total current liabilities | **15318** | 16888 |
| **Long-term Debt** | **67148** | 65649 |
| **Deferred Credits and Other Liabilities:** |  |  |
| Accumulated deferred income taxes | **12381** | 12133 |
| Deferred credits related to income taxes | **4648** | 4712 |
| Accumulated deferred ITCs | **2047** | 2002 |
| Employee benefit obligations | **941** | 980 |
| Operating lease obligations, deferred | **1280** | 1287 |
| Asset retirement obligations, deferred | **8907** | 8939 |
| Other cost of removal obligations | **2054** | 2036 |
| Other regulatory liabilities, deferred | **770** | 722 |
| Other deferred credits and liabilities | **1625** | 1505 |
| Total deferred credits and other liabilities | **34653** | 34316 |
| **Total Liabilities** | **117119** | 116853 |
| **Total Stockholders' Equity** (See accompanying statements) | **39912** | 38867 |
| **Total Liabilities and Stockholders' Equity** | $**157031** | $155720 |

---

The accompanying notes as they relate to Southern Company are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED)

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Southern Company Common Stockholders' Equity** | **Southern Company Common Stockholders' Equity** | **Southern Company Common Stockholders' Equity** | **Southern Company Common Stockholders' Equity** | **Southern Company Common Stockholders' Equity** | **Southern Company Common Stockholders' Equity** | **Southern Company Common Stockholders' Equity** | | |
| | **Number of<br>Common Shares** | **Number of<br>Common Shares** | **Common Stock** | **Common Stock** | **Common Stock** | | **Accumulated<br>Other<br>Comprehensive Income <br>(Loss)** | | |
| | **Issued** | **Treasury** | **Par Value** | **Paid-In Capital** | **Treasury** |<br>**Retained Earnings** | **Accumulated<br>Other<br>Comprehensive Income <br>(Loss)** |<br>**Noncontrolling Interests** |<br>**Total** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Balance at December 31, 2024** | 1098 | (1) | $5446 | $14149 | $(59) | $13750 | $(78) | $3466 | $36674 |
| Consolidated net income (loss) |  |  |  |  |  | 1334 |  | (64) | 1270 |
| Other comprehensive income |  |  |  |  |  |  | 3 |  | 3 |
| Stock issued | 2 |  | 7 | 78 |  |  |  |  | 85 |
| Stock-based compensation |  |  |  | 5 |  |  |  |  | 5 |
| Dividends of $0.72 per share |  |  |  |  |  | (791) |  |  | (791) |
| Capital contributions from<br> noncontrolling interests |  |  |  |  |  |  |  | 19 | 19 |
| Distributions to noncontrolling interests |  |  |  |  |  |  |  | (37) | (37) |
| Other |  |  |  | (1) | (2) | (2) |  |  | (5) |
| **Balance at March 31, 2025** | 1100 | (1) | $5453 | $14231 | $(61) | $14291 | $(75) | $3384 | $37223 |

---

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Balance at December 31, 2025** | **1120** | **(1)** | $**5554** | $**15740** | $**(59)** | $**14856** | $**(75)** | $**2851** | $**38867** |
| Consolidated net income (loss) | **—** | **—** | **—** | **—** | **—** | **1356** | **—** | **(18)** | **1338** |
| Other comprehensive income | **—** | **—** | **—** | **—** | **—** | **—** | **2** | **—** | **2** |
| Stock issued | **8** | **—** | **34** | **555** | **—** | **—** | **—** | **—** | **589** |
| Stock-based compensation | **—** | **—** | **—** | **(9)** | **—** | **—** | **—** | **—** | **(9)** |
| Dividends of $0.74 per share | **—** | **—** | **—** | **—** | **—** | **(830)** | **—** | **—** | **(830)** |
| Capital contributions from<br> noncontrolling interests | **—** | **—** | **—** | **—** | **—** | **—** | **—** | **4** | **4** |
| Distributions to noncontrolling interests | **—** | **—** | **—** | **—** | **—** | **—** | **—** | **(46)** | **(46)** |
| Other | **—** | **—** | **—** | **(1)** | **(1)** | **—** | **—** | **(1)** | **(3)** |
| **Balance at March 31, 2026** | **1128** | **(1)** | $**5588** | $**16285** | $**(60)** | $**15382** | $**(73)** | $**2790** | $**39912** |

---

The accompanying notes as they relate to Southern Company are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**ALABAMA POWER COMPANY**

CONDENSED STATEMENTS OF INCOME (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Revenues:** |  |  |
| Retail revenues | $**1728** | $1723 |
| Wholesale revenues, non-affiliates | **117** | 91 |
| Wholesale revenues, affiliates | **119** | 69 |
| Other revenues | **128** | 129 |
| Total operating revenues | **2092** | 2012 |
| **Operating Expenses:** |  |  |
| Fuel | **428** | 386 |
| Purchased power, non-affiliates | **73** | 69 |
| Purchased power, affiliates | **73** | 55 |
| Other operations and maintenance | **393** | 463 |
| Depreciation and amortization | **381** | 370 |
| Taxes other than income taxes | **133** | 131 |
| Total operating expenses | **1481** | 1474 |
| **Operating Income** | **611** | 538 |
| **Other Income and (Expense):** |  |  |
| Allowance for equity funds used during construction | **19** | 18 |
| Interest expense, net of amounts capitalized | **(115)** | (108) |
| Other income (expense), net | **39** | 38 |
| Total other income and (expense) | **(57)** | (52) |
| **Earnings Before Income Taxes** | **554** | 486 |
| Income taxes | **129** | 111 |
| **Net Income** | $**425** | $375 |

---

CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Net Income** | $**425** | $375 |
| Other comprehensive income: |  |  |
| &nbsp;&nbsp;&nbsp;Qualifying hedges: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reclassification adjustment for amounts included in net income, <br>&nbsp;&nbsp;&nbsp;&nbsp;net of tax of $— and $—, respectively | **—** | 1 |
| **Total other comprehensive income** | **—** | 1 |
| **Comprehensive Income** | $**425** | $376 |

---

The accompanying notes as they relate to Alabama Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**ALABAMA POWER COMPANY**

CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Activities:** |  |  |
| Net income | $**425** | $375 |
| Adjustments to reconcile net income to net cash provided from operating activities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization, total | **431** | 404 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income taxes | **62** | 81 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pension, postretirement, and other employee benefits | **(59)** | (52) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Settlement of asset retirement obligations | **(57)** | (61) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other, net | **(63)** | (30) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes in certain current assets and liabilities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Receivables | **101** | 41 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Prepayments | **(84)** | (103) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current assets | **(25)** | 25 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accounts payable | **(356)** | (244) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued taxes | **105** | 116 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued compensation | **(135)** | (112) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Customer refunds | **3** | (95) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current liabilities | **(47)** | (118) |
| Net cash provided from operating activities | **301** | 227 |
| **Investing Activities:** |  |  |
| Property additions | **(470)** | (512) |
| Nuclear decommissioning trust fund purchases | **(125)** | (115) |
| Nuclear decommissioning trust fund sales | **125** | 115 |
| Cost of removal, net of salvage | **(39)** | (41) |
| Change in construction payables, net of joint owner portion | **14** | (29) |
| Other investing activities | **(14)** | (9) |
| Net cash used for investing activities | **(509)** | (591) |
| **Financing Activities:** |  |  |
| Increase in notes payable, net | **30** |  |
| Proceeds — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Senior notes | **—** | 500 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other long-term debt | **—** | 2 |
| Redemptions — Other long-term debt | **(45)** |  |
| Capital contributions from parent company | **225** | 525 |
| Payment of common stock dividends | **(301)** | (305) |
| Other financing activities | **8** | (4) |
| Net cash provided from (used for) financing activities | **(83)** | 718 |
| **Net Change in Cash, Cash Equivalents, and Restricted Cash** | **(291)** | 354 |
| **Cash, Cash Equivalents, and Restricted Cash at Beginning of Period** | **566** | 585 |
| **Cash, Cash Equivalents, and Restricted Cash at End of Period** | $**275** | $939 |
| **Supplemental Cash Flow Information:** |  |  |
| Cash paid during the period for — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest (net of $6 and $5 capitalized for 2026 and 2025, respectively) | $**153** | $139 |
| Noncash transactions — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued property additions at end of period | **115** | 119 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets obtained under operating leases | **9** | 1 |

---

The accompanying notes as they relate to Alabama Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**ALABAMA POWER COMPANY**

CONDENSED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Assets** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Assets:** |  |  |
| Cash and cash equivalents | $**275** | $566 |
| Receivables — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Customer accounts | **460** | 470 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unbilled revenues | **158** | 189 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Affiliated | **142** | 126 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other accounts and notes | **54** | 113 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accumulated provision for uncollectible accounts | **(25)** | (23) |
| Fossil fuel stock | **289** | 303 |
| Materials and supplies | **745** | 732 |
| Prepaid expenses | **170** | 86 |
| Other regulatory assets | **353** | 344 |
| Other current assets | **85** | 80 |
| Total current assets | **2706** | 2986 |
| **Property, Plant, and Equipment:** |  |  |
| In service | **40185** | 38915 |
| Less: Accumulated provision for depreciation | **13754** | 12816 |
| Plant in service, net of depreciation | **26431** | 26099 |
| Other utility plant, net | **—** | 307 |
| Nuclear fuel, at amortized cost | **285** | 290 |
| Construction work in progress | **1550** | 1441 |
| Total property, plant, and equipment | **28266** | 28137 |
| **Other Property and Investments:** |  |  |
| Nuclear decommissioning trusts, at fair value | **1510** | 1542 |
| Equity investments in unconsolidated subsidiaries | **49** | 48 |
| Miscellaneous property and investments | **123** | 123 |
| Total other property and investments | **1682** | 1713 |
| **Deferred Charges and Other Assets:** |  |  |
| Operating lease right-of-use assets, net of amortization | **91** | 86 |
| Deferred charges related to income taxes | **262** | 261 |
| Prepaid pension and other postretirement benefit costs | **1046** | 1016 |
| Regulatory assets – asset retirement obligations | **1572** | 1518 |
| Other regulatory assets, deferred | **2070** | 1982 |
| Other deferred charges and assets | **456** | 425 |
| Total deferred charges and other assets | **5497** | 5288 |
| **Total Assets** | $**38151** | $38124 |

---

The accompanying notes as they relate to Alabama Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**ALABAMA POWER COMPANY**

CONDENSED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Liabilities and Stockholder's Equity** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Liabilities:** |  |  |
| Securities due within one year | $**462** | $625 |
| Notes payable | **30** |  |
| Accounts payable — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Affiliated | **200** | 294 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | **351** | 576 |
| Customer deposits | **114** | 113 |
| Accrued taxes | **211** | 105 |
| Accrued interest | **96** | 134 |
| Accrued compensation | **153** | 275 |
| Asset retirement obligations | **258** | 256 |
| Other regulatory liabilities | **70** | 89 |
| Other current liabilities | **131** | 135 |
| Total current liabilities | **2076** | 2602 |
| **Long-term Debt** | **11507** | 11388 |
| **Deferred Credits and Other Liabilities:** |  |  |
| Accumulated deferred income taxes | **4313** | 4209 |
| Deferred credits related to income taxes | **1560** | 1585 |
| Accumulated deferred ITCs | **113** | 115 |
| Employee benefit obligations | **149** | 152 |
| Operating lease obligations | **81** | 78 |
| Asset retirement obligations, deferred | **3404** | 3423 |
| Other regulatory liabilities, deferred | **239** | 252 |
| Other deferred credits and liabilities | **365** | 326 |
| Total deferred credits and other liabilities | **10224** | 10140 |
| **Total Liabilities** | **23807** | 24130 |
| **Common Stockholder's Equity** (See accompanying statements) | **14344** | 13994 |
| **Total Liabilities and Stockholder's Equity** | $**38151** | $38124 |

---

The accompanying notes as they relate to Alabama Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**ALABAMA POWER COMPANY**

CONDENSED STATEMENTS OF COMMON STOCKHOLDER'S EQUITY (UNAUDITED)

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Number of<br>Common<br>Shares<br>Issued** | **Common<br>Stock** | **Paid-In<br>Capital** | **Retained<br>Earnings** | **Accumulated<br>Other<br>Comprehensive<br>Income (Loss)** | **Total** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Balance at December 31, 2024** | 31 | $1222 | $7657 | $4214 | $(5) | $13088 |
| Net income |  |  |  | 375 |  | 375 |
| Capital contributions from parent company |  |  | 527 |  |  | 527 |
| Other comprehensive income |  |  |  |  | 1 | 1 |
| Cash dividends on common stock |  |  |  | (305) |  | (305) |
| Other |  |  |  |  | (1) | (1) |
| **Balance at March 31, 2025** | 31 | $1222 | $8184 | $4284 | $(5) | $13685 |
| **Balance at December 31, 2025** | **31** | $**1222** | $**8263** | $**4512** | $**(3)** | $**13994** |
| Net income | **—** | **—** | **—** | **425** | **—** | **425** |
| Capital contributions from parent company | **—** | **—** | **226** | **—** | **—** | **226** |
| Cash dividends on common stock | **—** | **—** | **—** | **(301)** | **—** | **(301)** |
| **Balance at March 31, 2026** | **31** | $**1222** | $**8489** | $**4636** | $**(3)** | $**14344** |

---

The accompanying notes as they relate to Alabama Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**GEORGIA POWER COMPANY**

CONDENSED STATEMENTS OF INCOME (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Revenues:** |  |  |
| Retail revenues | $**2638** | $2630 |
| Wholesale revenues | **227** | 144 |
| Other revenues | **277** | 263 |
| Total operating revenues | **3142** | 3037 |
| **Operating Expenses:** |  |  |
| Fuel | **601** | 524 |
| Purchased power, non-affiliates | **158** | 161 |
| Purchased power, affiliates | **289** | 264 |
| Other operations and maintenance | **672** | 634 |
| Depreciation and amortization | **484** | 503 |
| Taxes other than income taxes | **176** | 170 |
| Total operating expenses | **2380** | 2256 |
| **Operating Income** | **762** | 781 |
| **Other Income and (Expense):** |  |  |
| Allowance for equity funds used during construction | **97** | 48 |
| Interest expense, net of amounts capitalized | **(204)** | (187) |
| Other income (expense), net | **58** | 52 |
| Total other income and (expense) | **(49)** | (87) |
| **Earnings Before Income Taxes** | **713** | 694 |
| Income taxes | **85** | 98 |
| **Net Income** | $**628** | $596 |

---

CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Net Income** | $**628** | $596 |
| Other comprehensive income (loss): |  |  |
| &nbsp;&nbsp;&nbsp;Qualifying hedges: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes in fair value, net of tax of $— and $(1), respectively | **—** | (1) |
| **Total other comprehensive income (loss)** | **—** | (1) |
| **Comprehensive Income** | $**628** | $595 |

---

The accompanying notes as they relate to Georgia Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**GEORGIA POWER COMPANY**

CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Activities:** |  |  |
| Net income | $**628** | $596 |
| Adjustments to reconcile net income to net cash provided from operating activities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization, total | **556** | 577 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income taxes | **95** | 91 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Allowance for equity funds used during construction | **(97)** | (48) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pension, postretirement, and other employee benefits | **(78)** | (74) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Settlement of asset retirement obligations | **(67)** | (66) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Storm damage cost recovery – long-term | **(93)** | (173) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other, net | **(27)** | (38) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes in certain current assets and liabilities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Receivables | **140** | 94 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Retail fuel cost under recovery | **78** | 83 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Prepaid income taxes | **(55)** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current assets | **(90)** | (23) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accounts payable | **(131)** | (325) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued taxes | **(352)** | (355) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued compensation | **(75)** | (68) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current liabilities | **(52)** | 34 |
| Net cash provided from operating activities | **380** | 305 |
| **Investing Activities:** |  |  |
| Property additions | **(1906)** | (1429) |
| Nuclear decommissioning trust fund purchases | **(316)** | (246) |
| Nuclear decommissioning trust fund sales | **316** | 246 |
| Cost of removal, net of salvage | **(100)** | (103) |
| Change in construction payables, net of joint owner portion | **(271)** | (160) |
| Other investing activities | **(12)** | (27) |
| Net cash used for investing activities | **(2289)** | (1719) |
| **Financing Activities:** |  |  |
| Decrease in notes payable, net | **(135)** |  |
| Proceeds — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Senior notes | **—** | 1600 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Short-term borrowings | **250** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FFB loan | **1016** |  |
| Redemptions and repurchases — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Short-term borrowings | **(50)** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;FFB loan | **(21)** | (21) |
| Capital contributions from parent company | **1500** | 700 |
| Payment of common stock dividends | **(644)** | (552) |
| Other financing activities | **(42)** | (48) |
| Net cash provided from financing activities | **1874** | 1679 |
| **Net Change in Cash, Cash Equivalents, and Restricted Cash** | **(35)** | 265 |
| **Cash, Cash Equivalents, and Restricted Cash at Beginning of Period** | **59** | 118 |
| **Cash, Cash Equivalents, and Restricted Cash at End of Period** | $**24** | $383 |
| **Supplemental Cash Flow Information:** |  |  |
| Cash paid during the period for — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest (net of $31 and $16 capitalized for 2026 and 2025, respectively) | $**218** | $188 |
| Noncash transactions — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued property additions at end of period | **753** | 551 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets obtained under operating leases | **6** | 2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets obtained under finance leases | **2** | 13 |

---

The accompanying notes as they relate to Georgia Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**GEORGIA POWER COMPANY**

CONDENSED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Assets** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Assets:** |  |  |
| Cash and cash equivalents | $**24** | $59 |
| Receivables — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Customer accounts, net | **929** | 993 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unbilled revenues | **302** | 346 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Under recovered retail fuel clause revenues | **234** | 310 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Joint owner accounts | **98** | 195 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Affiliated | **82** | 96 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other accounts and notes | **69** | 61 |
| Fossil fuel stock | **368** | 362 |
| Materials and supplies | **1042** | 994 |
| Regulatory assets – asset retirement obligations | **222** | 222 |
| Other regulatory assets | **336** | 335 |
| Other current assets | **371** | 285 |
| Total current assets | **4077** | 4258 |
| **Property, Plant, and Equipment:** |  |  |
| In service | **60443** | 59458 |
| Less: Accumulated provision for depreciation | **16236** | 15957 |
| Plant in service, net of depreciation | **44207** | 43501 |
| Nuclear fuel, at amortized cost | **635** | 606 |
| Construction work in progress | **7623** | 6764 |
| Total property, plant, and equipment | **52465** | 50871 |
| **Other Property and Investments:** |  |  |
| Nuclear decommissioning trusts, at fair value | **1378** | 1405 |
| Equity investments in unconsolidated subsidiaries | **37** | 40 |
| Miscellaneous property and investments | **231** | 231 |
| Total other property and investments | **1646** | 1676 |
| **Deferred Charges and Other Assets:** |  |  |
| Operating lease right-of-use assets, net of amortization | **1083** | 1120 |
| Deferred charges related to income taxes | **738** | 660 |
| Prepaid pension costs | **1142** | 1099 |
| Deferred under recovered retail fuel clause revenues | **210** | 212 |
| Regulatory assets – asset retirement obligations, deferred | **3397** | 3382 |
| Other regulatory assets, deferred | **4166** | 4032 |
| Other deferred charges and assets | **796** | 767 |
| Total deferred charges and other assets | **11532** | 11272 |
| **Total Assets** | $**69720** | $68077 |

---

The accompanying notes as they relate to Georgia Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**GEORGIA POWER COMPANY**

CONDENSED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Liabilities and Stockholder's Equity** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Liabilities:** |  |  |
| Securities due within one year | $**2266** | $1370 |
| Notes payable | **225** | 160 |
| Accounts payable — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Affiliated | **778** | 992 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | **1512** | 1728 |
| Customer deposits | **273** | 267 |
| Accrued taxes | **326** | 678 |
| Accrued interest | **207** | 234 |
| Accrued compensation | **177** | 327 |
| Operating lease obligations | **174** | 170 |
| Asset retirement obligations | **355** | 360 |
| Other regulatory liabilities | **35** | 52 |
| Other current liabilities | **268** | 332 |
| Total current liabilities | **6596** | 6670 |
| **Long-term Debt** | **20169** | 20122 |
| **Deferred Credits and Other Liabilities:** |  |  |
| Accumulated deferred income taxes | **4920** | 4811 |
| Deferred credits related to income taxes | **2198** | 2225 |
| Accumulated deferred ITCs | **417** | 354 |
| Employee benefit obligations | **177** | 189 |
| Operating lease obligations, deferred | **924** | 960 |
| Asset retirement obligations, deferred | **5158** | 5167 |
| Other deferred credits and liabilities | **642** | 545 |
| Total deferred credits and other liabilities | **14436** | 14251 |
| **Total Liabilities** | **41201** | 41043 |
| **Common Stockholder's Equity** (See accompanying statements) | **28519** | 27034 |
| **Total Liabilities and Stockholder's Equity** | $**69720** | $68077 |

---

The accompanying notes as they relate to Georgia Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**GEORGIA POWER COMPANY**

CONDENSED STATEMENTS OF COMMON STOCKHOLDER'S EQUITY (UNAUDITED)

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Number of<br>Common<br>Shares<br>Issued** | **Common<br>Stock** | **Paid-In<br>Capital** | **Retained<br>Earnings** | **Accumulated<br>Other<br>Comprehensive<br>Income (Loss)** | **Total** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Balance at December 31, 2024** | 9 | $398 | $19708 | $3562 | $13 | $23681 |
| Net income |  |  |  | 596 |  | 596 |
| Capital contributions from parent company |  |  | 702 |  |  | 702 |
| Other comprehensive income (loss) |  |  |  |  | (1) | (1) |
| Cash dividends on common stock |  |  |  | (552) |  | (552) |
| **Balance at March 31, 2025** | 9 | $398 | $20410 | $3606 | $12 | $24426 |
| **Balance at December 31, 2025** | **9** | $**398** | $**22416** | $**4204** | $**16** | $**27034** |
| Net income | **—** | **—** | **—** | **628** | **—** | **628** |
| Capital contributions from parent company | **—** | **—** | **1500** | **—** | **—** | **1500** |
| Cash dividends on common stock | **—** | **—** | **—** | **(644)** | **—** | **(644)** |
| Other | **—** | **—** | **—** | **1** | **—** | **1** |
| **Balance at March 31, 2026** | **9** | $**398** | $**23916** | $**4189** | $**16** | $**28519** |

---

The accompanying notes as they relate to Georgia Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MISSISSIPPI POWER COMPANY**

CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Revenues:** |  |  |
| Retail revenues | $**273** | $248 |
| Wholesale revenues, non-affiliates | **87** | 71 |
| Wholesale revenues, affiliates | **97** | 81 |
| Other revenues | **15** | 20 |
| Total operating revenues | **472** | 420 |
| **Operating Expenses:** |  |  |
| Fuel and purchased power | **205** | 166 |
| Other operations and maintenance | **88** | 84 |
| Depreciation and amortization | **55** | 52 |
| Taxes other than income taxes | **36** | 33 |
| Total operating expenses | **384** | 335 |
| **Operating Income** | **88** | 85 |
| **Other Income and (Expense):** |  |  |
| Interest expense, net of amounts capitalized | **(20)** | (20) |
| Other income (expense), net | **10** | 6 |
| Total other income and (expense) | **(10)** | (14) |
| **Earnings Before Income Taxes** | **78** | 71 |
| Income taxes | **18** | 16 |
| **Net Income and Comprehensive Income** | $**60** | $55 |

---

The accompanying notes as they relate to Mississippi Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MISSISSIPPI POWER COMPANY**

CONDENSED STATEMENTS OF CASH FLOWS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Activities:** |  |  |
| Net income | $**60** | $55 |
| Adjustments to reconcile net income to net cash provided from operating activities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization, total | **61** | 56 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income taxes | **10** | (7) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pension, postretirement, and other employee benefits | **(5)** | (5) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Settlement of asset retirement obligations | **(4)** | (4) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other, net | **(5)** | 7 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes in certain current assets and liabilities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Receivables | **(9)** | (16) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Retail fuel cost under recovery | **(15)** | (13) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Fossil fuel stock | **(1)** | 13 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current assets | **(2)** | 10 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accounts payable | **(28)** | (4) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued taxes | **(73)** | (64) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued interest | **(12)** | (11) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued compensation | **(26)** | (23) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current liabilities | **—** | (5) |
| Net cash used for operating activities | **(49)** | (11) |
| **Investing Activities:** |  |  |
| Property additions | **(92)** | (72) |
| Contributions in aid of construction | **2** | 57 |
| Cost of removal, net of salvage | **(9)** | (8) |
| Change in construction payables, net | **(1)** | (14) |
| Payments pursuant to LTSAs | **(6)** | (6) |
| Other investing activities | **—** | (1) |
| Net cash used for investing activities | **(106)** | (44) |
| **Financing Activities:** |  |  |
| Increase (decrease) in notes payable, net | **32** | (14) |
| Proceeds — Senior notes | **75** | 100 |
| Capital contributions from parent company | **90** | 50 |
| Payment of common stock dividends | **(48)** | (48) |
| Other financing activities | **(1)** | (1) |
| Net cash provided from financing activities | **148** | 87 |
| **Net Change in Cash, Cash Equivalents, and Restricted Cash** | **(7)** | 32 |
| **Cash, Cash Equivalents, and Restricted Cash at Beginning of Period** | **26** | 13 |
| **Cash, Cash Equivalents, and Restricted Cash at End of Period** | $**19** | $45 |
| **Supplemental Cash Flow Information:** |  |  |
| Cash paid during the period for — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest | $**32** | $30 |
| Noncash transactions — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued property additions at end of period | **37** | 22 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets obtained under operating leases | **3** |  |

---

The accompanying notes as they relate to Mississippi Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MISSISSIPPI POWER COMPANY**

CONDENSED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Assets** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Assets:** |  |  |
| Cash and cash equivalents | $**19** | $26 |
| Receivables — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Customer accounts, net | **113** | 50 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unbilled revenues | **39** | 44 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Affiliated | **31** | 26 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other accounts and notes | **24** | 22 |
| Fossil fuel stock | **48** | 46 |
| Materials and supplies | **103** | 101 |
| Other regulatory assets | **52** | 49 |
| Other current assets | **7** | 10 |
| Total current assets | **436** | 374 |
| **Property, Plant, and Equipment:** |  |  |
| In service | **6057** | 5972 |
| Less: Accumulated provision for depreciation | **1990** | 1922 |
| Plant in service, net of depreciation | **4067** | 4050 |
| Construction work in progress | **248** | 238 |
| Total property, plant, and equipment | **4315** | 4288 |
| **Other Property and Investments** | **142** | 143 |
| **Deferred Charges and Other Assets:** |  |  |
| Deferred charges related to income taxes | **25** | 25 |
| Prepaid pension costs | **157** | 151 |
| Deferred under recovered retail fuel clause revenues | **—** | 40 |
| Regulatory assets – asset retirement obligations | **228** | 229 |
| Other regulatory assets, deferred | **259** | 255 |
| Accumulated deferred income taxes | **62** | 66 |
| Other deferred charges and assets | **79** | 66 |
| Total deferred charges and other assets | **810** | 832 |
| **Total Assets** | $**5703** | $5637 |

---

The accompanying notes as they relate to Mississippi Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MISSISSIPPI POWER COMPANY**

CONDENSED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Liabilities and Stockholder's Equity** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Liabilities:** |  |  |
| Securities due within one year | $**65** | $66 |
| Notes payable | **32** |  |
| Accounts payable — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Affiliated | **64** | 70 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | **60** | 77 |
| Accrued taxes | **52** | 125 |
| Accrued compensation | **25** | 49 |
| Asset retirement obligations | **19** | 21 |
| Other regulatory liabilities | **12** | 20 |
| Other current liabilities | **87** | 92 |
| Total current liabilities | **416** | 520 |
| **Long-term Debt** | **1795** | 1720 |
| **Deferred Credits and Other Liabilities:** |  |  |
| Accumulated deferred income taxes | **499** | 491 |
| Deferred credits related to income taxes | **209** | 211 |
| Employee benefit obligations | **65** | 67 |
| Asset retirement obligations, deferred | **100** | 103 |
| Other cost of removal obligations | **110** | 115 |
| Other regulatory liabilities, deferred | **140** | 141 |
| Other deferred credits and liabilities | **78** | 80 |
| Total deferred credits and other liabilities | **1201** | 1208 |
| **Total Liabilities** | **3412** | 3448 |
| **Common Stockholder's Equity** (See accompanying statements) | **2291** | 2189 |
| **Total Liabilities and Stockholder's Equity** | $**5703** | $5637 |

---

The accompanying notes as they relate to Mississippi Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MISSISSIPPI POWER COMPANY**

CONDENSED STATEMENTS OF COMMON STOCKHOLDER'S EQUITY (UNAUDITED)

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Number of<br>Common<br>Shares<br>Issued** | **Common<br>Stock** | **Paid-In<br>Capital** | **Retained<br>Earnings (Accumulated Deficit)** | **Accumulated<br>Other<br>Comprehensive<br>Income (Loss)** | **Total** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Balance at December 31, 2024** | 1 | $38 | $4791 | $(2745) | $5 | $2089 |
| Net income |  |  |  | 55 |  | 55 |
| Capital contributions from parent company |  |  | 51 |  |  | 51 |
| Cash dividends on common stock |  |  |  | (48) |  | (48) |
| Other |  |  |  |  | (1) | (1) |
| **Balance at March 31, 2025** | 1 | $38 | $4842 | $(2738) | $4 | $2146 |
| **Balance at December 31, 2025** | **1** | $**38** | $**4871** | $**(2724)** | $**4** | $**2189** |
| Net income | **—** | **—** | **—** | **60** | **—** | **60** |
| Capital contributions from parent company | **—** | **—** | **90** | **—** | **—** | **90** |
| Cash dividends on common stock | **—** | **—** | **—** | **(48)** | **—** | **(48)** |
| **Balance at March 31, 2026** | **1** | $**38** | $**4961** | $**(2712)** | $**4** | $**2291** |

---

The accompanying notes as they relate to Mississippi Power are an integral part of these condensed financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Revenues:** |  |  |
| Wholesale revenues, non-affiliates | $**577** | $447 |
| Wholesale revenues, affiliates | **100** | 116 |
| Other revenues | **4** | 4 |
| Total operating revenues | **681** | 567 |
| **Operating Expenses:** |  |  |
| Fuel | **254** | 207 |
| Purchased power | **58** | 28 |
| Other operations and maintenance | **137** | 123 |
| Depreciation and amortization | **278** | 152 |
| Taxes other than income taxes | **13** | 12 |
| Total operating expenses | **740** | 522 |
| **Operating Income** | **(59)** | 45 |
| **Other Income and (Expense):** |  |  |
| Interest expense, net of amounts capitalized | **(27)** | (26) |
| Other income (expense), net | **2** | 3 |
| Total other income and (expense) | **(25)** | (23) |
| **Earnings (Loss) Before Income Taxes** | **(84)** | 22 |
| Income taxes (benefit) | **(70)** | (1) |
| **Net Income (Loss)** | **(14)** | 23 |
| Net loss attributable to noncontrolling interests | **(18)** | (64) |
| **Net Income Attributable to Southern Power** | $**4** | $87 |

---

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Net Income (Loss)** | $**(14)** | $23 |
| Other comprehensive income: |  |  |
| &nbsp;&nbsp;&nbsp;Qualifying hedges: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Changes in fair value, net of tax of $(2) and $5, respectively | **(8)** | 16 |
| &nbsp;&nbsp;&nbsp;&nbsp;Reclassification adjustment for amounts included in net income, <br>&nbsp;&nbsp;&nbsp;&nbsp;net of tax of $3 and $(5), respectively | **10** | (14) |
| Total other comprehensive income | **2** | 2 |
| **Comprehensive Income (Loss)** | **(12)** | 25 |
| Comprehensive loss attributable to noncontrolling interests | **(18)** | (64) |
| **Comprehensive Income Attributable to Southern Power** | $**6** | $89 |

---

The accompanying notes as they relate to Southern Power are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Activities:** |  |  |
| Net income | $**(14)** | $23 |
| Adjustments to reconcile net income to net cash provided from operating activities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization, total | **283** | 158 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income taxes | **(27)** | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Amortization of ITCs | **(15)** | (15) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Loss on damaged equipment | **20** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other, net | **—** | 1 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes in certain current assets and liabilities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Receivables | **23** | (5) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Income taxes receivable | **(43)** | (6) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current assets | **14** | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accounts payable | **(46)** | (27) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued compensation | **(15)** | (15) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current liabilities | **13** | 22 |
| Net cash provided from operating activities | **193** | 146 |
| **Investing Activities:** |  |  |
| Property additions | **(119)** | (187) |
| Change in construction payables | **2** | 39 |
| Payments pursuant to LTSAs | **(14)** | (13) |
| Other investing activities | **2** |  |
| Net cash used for investing activities | **(129)** | (161) |
| **Financing Activities:** |  |  |
| Increase in notes payable, net | **23** |  |
| Capital contributions from parent company | **—** | 130 |
| Capital contributions from noncontrolling interests | **4** | 19 |
| Distributions to noncontrolling interests | **(47)** | (37) |
| Payment of common stock dividends | **(72)** | (70) |
| Other financing activities | **(5)** | (3) |
| Net cash provided from (used for) financing activities | **(97)** | 39 |
| **Net Change in Cash, Cash Equivalents, and Restricted Cash** | **(33)** | 24 |
| **Cash, Cash Equivalents, and Restricted Cash at Beginning of Period** | **105** | 168 |
| **Cash, Cash Equivalents, and Restricted Cash at End of Period** | $**72** | $192 |
| **Supplemental Cash Flow Information:** |  |  |
| Cash paid during the period for — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest (net of $10 and $3 capitalized for 2026 and 2025, respectively) | $**13** | $22 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income taxes, net (excludes credit transfers) | **1** |  |
| Noncash transactions — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued property additions at end of period | **55** | 99 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets obtained under operating leases | **—** | 2 |

---

The accompanying notes as they relate to Southern Power are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Assets** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Assets:** |  |  |
| Cash and cash equivalents | $**72** | $105 |
| Receivables — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Customer accounts, net | **141** | 151 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Affiliated | **22** | 35 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | **62** | 16 |
| Materials and supplies | **135** | 132 |
| Other current assets | **77** | 89 |
| Total current assets | **509** | 528 |
| **Property, Plant, and Equipment:** |  |  |
| In service | **15342** | 15034 |
| Less: Accumulated provision for depreciation | **5488** | 5214 |
| Plant in service, net of depreciation | **9854** | 9820 |
| Construction work in progress | **867** | 1080 |
| Total property, plant, and equipment | **10721** | 10900 |
| **Other Property and Investments:** |  |  |
| Intangible assets, net of amortization of $193 and $188, respectively | **199** | 203 |
| Net investment in sales-type leases | **135** | 137 |
| Total other property and investments | **334** | 340 |
| **Deferred Charges and Other Assets:** |  |  |
| Operating lease right-of-use assets, net of amortization | **477** | 479 |
| Prepaid LTSAs | **183** | 170 |
| Other deferred charges and assets | **250** | 240 |
| Total deferred charges and other assets | **910** | 889 |
| **Total Assets** | $**12474** | $12657 |

---

The accompanying notes as they relate to Southern Power are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Liabilities and Stockholders' Equity** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Liabilities:** |  |  |
| Securities due within one year | $**575** | $587 |
| Notes payable | **160** | 138 |
| Accounts payable — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Affiliated | **58** | 88 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | **78** | 93 |
| Accrued taxes | **13** | 9 |
| Accrued interest | **46** | 38 |
| Operating lease obligations | **31** | 31 |
| Other current liabilities | **77** | 92 |
| Total current liabilities | **1038** | 1076 |
| **Long-term Debt** | **2353** | 2353 |
| **Deferred Credits and Other Liabilities:** |  |  |
| Accumulated deferred income taxes | **571** | 579 |
| Accumulated deferred ITCs | **1368** | 1383 |
| Operating lease obligations, deferred | **508** | 510 |
| Other deferred credits and liabilities | **242** | 235 |
| Total deferred credits and other liabilities | **2689** | 2707 |
| **Total Liabilities** | **6080** | 6136 |
| **Total Stockholders' Equity** (See accompanying statements) | **6394** | 6521 |
| **Total Liabilities and Stockholders' Equity** | $**12474** | $12657 |

---

The accompanying notes as they relate to Southern Power are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED)

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Paid-In<br>Capital** | **Retained<br>Earnings** | **Accumulated<br>Other<br>Comprehensive<br>Income (Loss)** | **Total Common**<br>**Stockholder's Equity** | **Noncontrolling Interests** | **Total** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Balance at December 31, 2024** | $1306 | $1912 | $(2) | $3216 | $3466 | $6682 |
| Net income (loss) |  | 87 |  | 87 | (64) | 23 |
| Capital contributions from parent company | 130 |  |  | 130 |  | 130 |
| Other comprehensive income |  |  | 2 | 2 |  | 2 |
| Cash dividends on common stock |  | (70) |  | (70) |  | (70) |
| Capital contributions from<br> noncontrolling interests |  |  |  |  | 19 | 19 |
| Distributions to noncontrolling interests |  |  |  |  | (37) | (37) |
| **Balance at March 31, 2025** | $1436 | $1929 | $— | $3365 | $3384 | $6749 |

---

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Balance at December 31, 2025** | $**1912** | $**1758** | $**—** | $**3670** | $**2851** | $**6521** |
| Net income (loss) | **—** | **4** | **—** | **4** | **(18)** | **(14)** |
| Other comprehensive income | **—** | **—** | **2** | **2** | **—** | **2** |
| Cash dividends on common stock | **—** | **(72)** | **—** | **(72)** | **—** | **(72)** |
| Capital contributions from<br> noncontrolling interests | **—** | **—** | **—** | **—** | **4** | **4** |
| Distributions to noncontrolling interests | **—** | **—** | **—** | **—** | **(46)** | **(46)** |
| Other | **(1)** | **1** | **—** | **—** | **(1)** | **(1)** |
| **Balance at March 31, 2026** | $**1911** | $**1691** | $**2** | $**3604** | $**2790** | $**6394** |

---

The accompanying notes as they relate to Southern Power are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN COMPANY GAS AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Revenues:** |  |  |
| Natural gas revenues (includes revenue taxes of $70 and $63, respectively) | $**2191** | $1839 |
| Total operating revenues | **2191** | 1839 |
| **Operating Expenses:** |  |  |
| Cost of natural gas | **926** | 674 |
| Other operations and maintenance | **343** | 316 |
| Depreciation and amortization | **183** | 169 |
| Taxes other than income taxes | **105** | 97 |
| Total operating expenses | **1557** | 1256 |
| **Operating Income** | **634** | 583 |
| **Other Income and (Expense):** |  |  |
| Earnings from equity method investments | **46** | 39 |
| Interest expense, net of amounts capitalized | **(105)** | (92) |
| Other income (expense), net | **17** | 18 |
| Total other income and (expense) | **(42)** | (35) |
| **Earnings Before Income Taxes** | **592** | 548 |
| Income taxes | **145** | 130 |
| **Net Income** | $**447** | $418 |

---

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Net Income** | $**447** | $418 |
| Other comprehensive income (loss): |  |  |
| &nbsp;&nbsp;&nbsp;Qualifying hedges: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes in fair value, net of tax of $2 and $5, respectively | **6** | 11 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reclassification adjustment for amounts included in net income,<br>&nbsp;&nbsp;&nbsp;&nbsp;net of tax of $(3) and $—, respectively | **(7)** | 1 |
| &nbsp;&nbsp;&nbsp;Pension and other postretirement benefit plans: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reclassification adjustment for amounts included in net income, <br>&nbsp;&nbsp;&nbsp;&nbsp;net of tax of $— and $—, respectively | **(1)** |  |
| **Total other comprehensive income (loss)** | **(2)** | 12 |
| **Comprehensive Income** | $**445** | $430 |

---

The accompanying notes as they relate to Southern Company Gas are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN COMPANY GAS AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| | For the Three Months Ended March 31, | For the Three Months Ended March 31, |
| | **2026** | 2025 |
| | *(in millions)* | *(in millions)* |
| **Operating Activities:** |  |  |
| Net income | $**447** | $418 |
| Adjustments to reconcile net income to net cash provided from operating activities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Depreciation and amortization, total | **183** | 167 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Deferred income taxes | **60** | 42 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other, net | **21** | (5) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Changes in certain current assets and liabilities — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Receivables | **(51)** | (115) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Natural gas for sale, net of temporary LIFO liquidation | **355** | 365 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current assets | **30** | 74 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accounts payable | **(201)** | (95) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued taxes | **70** | 73 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Accrued compensation | **(56)** | (60) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Natural gas cost over recovery | **(27)** | (179) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-Other current liabilities | **(23)** | 2 |
| Net cash provided from operating activities | **808** | 687 |
| **Investing Activities:** |  |  |
| Property additions | **(323)** | (281) |
| Cost of removal, net of salvage | **(16)** | (16) |
| Change in construction payables, net | **6** | (6) |
| Capital contributions to unconsolidated subsidiaries | **(27)** | (19) |
| Other investing activities | **—** | 1 |
| Net cash used for investing activities | **(360)** | (321) |
| **Financing Activities:** |  |  |
| Decrease in notes payable, net | **(170)** | (141) |
| Return of capital to parent company | **—** | (23) |
| Payment of common stock dividends | **(141)** | (149) |
| Other financing activities | **(10)** | (10) |
| Net cash used for financing activities | **(321)** | (323) |
| **Net Change in Cash, Cash Equivalents, and Restricted Cash** | **127** | 43 |
| **Cash, Cash Equivalents, and Restricted Cash at Beginning of Period** | **15** | 44 |
| **Cash, Cash Equivalents, and Restricted Cash at End of Period** | $**142** | $87 |
| **Supplemental Cash Flow Information:** |  |  |
| Cash paid (received) during the period for — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Interest (net of $4 and $5 capitalized for 2026 and 2025, respectively) | $**129** | $111 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Income taxes, net | **(1)** | (1) |
| Noncash transactions — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accrued property additions at end of period | **118** | 104 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Right-of-use assets obtained under operating leases | **1** | 60 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return of capital to parent company | **—** | 33 |

---

The accompanying notes as they relate to Southern Company Gas are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN COMPANY GAS AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Assets** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Assets:** |  |  |
| Cash and cash equivalents | $**137** | $15 |
| Receivables — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Customer accounts | **660** | 490 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unbilled revenues | **229** | 341 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other accounts and notes | **60** | 57 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accumulated provision for uncollectible accounts | **(59)** | (50) |
| Materials and supplies | **62** | 62 |
| Natural gas for sale | **145** | 396 |
| Prepaid expenses | **27** | 26 |
| Other regulatory assets | **96** | 114 |
| Other current assets | **44** | 66 |
| Total current assets | **1401** | 1517 |
| **Property, Plant, and Equipment:** |  |  |
| In service | **24391** | 24098 |
| Less: Accumulated depreciation | **6386** | 6273 |
| Plant in service, net of depreciation | **18005** | 17825 |
| Construction work in progress | **865** | 863 |
| Total property, plant, and equipment | **18870** | 18688 |
| **Other Property and Investments:** |  |  |
| Goodwill | **5015** | 5015 |
| Equity investments in unconsolidated subsidiaries | **1224** | 1182 |
| Other intangible assets, net of amortization of $180 and $179, respectively | **2** | 3 |
| Miscellaneous property and investments | **25** | 24 |
| Total other property and investments | **6266** | 6224 |
| **Deferred Charges and Other Assets:** |  |  |
| Operating lease right-of-use assets, net of amortization | **82** | 85 |
| Prepaid pension and other postretirement benefit costs | **248** | 229 |
| Other regulatory assets, deferred | **555** | 517 |
| Other deferred charges and assets | **129** | 127 |
| Total deferred charges and other assets | **1014** | 958 |
| **Total Assets** | $**27551** | $27387 |

---

The accompanying notes as they relate to Southern Company Gas are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN COMPANY GAS AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)

---

| | | |
|:---|:---|:---|
| **Liabilities and Stockholder's Equity** | **At March 31, 2026** | At December 31, 2025 |
|  | *(in millions)* | *(in millions)* |
| **Current Liabilities:** |  |  |
| Securities due within one year | $**531** | $531 |
| Notes payable | **255** | 425 |
| Accounts payable — |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Affiliated | **57** | 70 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | **383** | 553 |
| Customer deposits | **72** | 75 |
| Accrued taxes | **177** | 107 |
| Accrued interest | **77** | 100 |
| Accrued compensation | **81** | 137 |
| Temporary LIFO liquidation | **104** |  |
| Natural gas cost over recovery | **131** | 158 |
| Other regulatory liabilities | **69** | 36 |
| Other current liabilities | **109** | 110 |
| Total current liabilities | **2046** | 2302 |
| **Long-term Debt** | **8738** | 8743 |
| **Deferred Credits and Other Liabilities:** |  |  |
| Accumulated deferred income taxes | **2033** | 1971 |
| Deferred credits related to income taxes | **672** | 681 |
| Employee benefit obligations | **84** | 78 |
| Operating lease obligations | **122** | 123 |
| Other cost of removal obligations | **1944** | 1921 |
| Accrued environmental remediation | **201** | 207 |
| Other deferred credits and liabilities | **278** | 234 |
| Total deferred credits and other liabilities | **5334** | 5215 |
| **Total Liabilities** | **16118** | 16260 |
| **Common Stockholder's Equity** (See accompanying statements) | **11433** | 11127 |
| **Total Liabilities and Stockholder's Equity** | $**27551** | $27387 |

---

The accompanying notes as they relate to Southern Company Gas are an integral part of these condensed consolidated financial statements.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN COMPANY GAS AND SUBSIDIARY COMPANIES**

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDER'S EQUITY (UNAUDITED)

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Paid-In<br>Capital** | **Retained**<br>**Earnings** | **Accumulated<br>Other<br>Comprehensive<br>Income (Loss)** | **Total** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Balance at December 31, 2024** | $10863 | $85 | $48 | $10996 |
| Net income |  | 418 |  | 418 |
| Return of capital to parent company | (56) |  |  | (56) |
| Capital contributions from parent company | 3 |  |  | 3 |
| Other comprehensive income |  |  | 12 | 12 |
| Cash dividends on common stock |  | (149) |  | (149) |
| Other |  | 1 |  | 1 |
| **Balance at March 31, 2025** | $10810 | $355 | $60 | $11225 |
| **Balance at December 31, 2025** | $**10854** | $**222** | $**51** | $**11127** |
| Net income | **—** | **447** | **—** | **447** |
| Capital contributions from parent company | **1** | **—** | **—** | **1** |
| Other comprehensive income (loss) | **—** | **—** | **(2)** | **(2)** |
| Cash dividends on common stock | **—** | **(141)** | **—** | **(141)** |
| Other | **—** | **1** | **—** | **1** |
| **Balance at March 31, 2026** | $**10855** | $**529** | $**49** | $**11433** |

---

The accompanying notes as they relate to Southern Company Gas are an integral part of these condensed consolidated financial statements.

------

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS**

**FOR**

**THE SOUTHERN COMPANY AND SUBSIDIARY COMPANIES**

**ALABAMA POWER COMPANY**

**GEORGIA POWER COMPANY**

**MISSISSIPPI POWER COMPANY**

**SOUTHERN POWER COMPANY AND SUBSIDIARY COMPANIES**

**SOUTHERN COMPANY GAS AND SUBSIDIARY COMPANIES**

**(UNAUDITED)**

INDEX TO THE NOTES TO THE CONDENSED FINANCIAL STATEMENTS

---

| | | |
|:---|:---|:---|
| **<u>Note</u>** | | **<u>Page</u>** |
| A | <u>[Introduction](#i505af990baee483db750d4302bd03c67_136)</u> | <u>[42](#i505af990baee483db750d4302bd03c67_136)</u> |
| B | <u>[Regulatory Matters](#i505af990baee483db750d4302bd03c67_142)</u> | <u>[45](#i505af990baee483db750d4302bd03c67_142)</u> |
| C | <u>[Contingencies](#i505af990baee483db750d4302bd03c67_160)</u> | <u>[48](#i505af990baee483db750d4302bd03c67_160)</u> |
| D | <u>[Revenue from Contracts with Customers and Lease Income](#i505af990baee483db750d4302bd03c67_178)</u> | <u>[50](#i505af990baee483db750d4302bd03c67_178)</u> |
| E | <u>[Consolidated Entities and Equity Method Investments](#i505af990baee483db750d4302bd03c67_190)</u> | <u>[54](#i505af990baee483db750d4302bd03c67_190)</u> |
| F | <u>[Financing](#i505af990baee483db750d4302bd03c67_202)</u> | <u>[56](#i505af990baee483db750d4302bd03c67_202)</u> |
| G | <u>[Income Taxes](#i505af990baee483db750d4302bd03c67_217)</u> | <u>[60](#i505af990baee483db750d4302bd03c67_217)</u> |
| H | <u>[Retirement Benefits](#i505af990baee483db750d4302bd03c67_220)</u> | <u>[61](#i505af990baee483db750d4302bd03c67_220)</u> |
| I | <u>[Fair Value Measurements](#i505af990baee483db750d4302bd03c67_223)</u> | <u>[63](#i505af990baee483db750d4302bd03c67_223)</u> |
| J | <u>[Derivatives](#i505af990baee483db750d4302bd03c67_229)</u> | <u>[67](#i505af990baee483db750d4302bd03c67_229)</u> |
| K | <u>[Acquisitions and Dispositions](#i505af990baee483db750d4302bd03c67_235)</u> | <u>[76](#i505af990baee483db750d4302bd03c67_235)</u> |
| L | <u>[Segment and Related Information](#i505af990baee483db750d4302bd03c67_247)</u> | <u>[78](#i505af990baee483db750d4302bd03c67_247)</u> |

---

INDEX TO APPLICABLE NOTES TO FINANCIAL STATEMENTS BY REGISTRANT

The following unaudited notes to the condensed financial statements are a combined presentation; however, information contained herein relating to any individual Registrant is filed by such Registrant on its own behalf and each Registrant makes no representation as to information related to the other Registrants. The table below indicates the Registrants to which each note applies.

---

| | | | | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Applicable Notes** | **Applicable Notes** | **Applicable Notes** | **Applicable Notes** | **Applicable Notes** | **Applicable Notes** | **Applicable Notes** | **Applicable Notes** | **Applicable Notes** | **Applicable Notes** | **Applicable Notes** | **Applicable Notes** |
| **Registrant** | **A** | **B** | **C** | **D** | **E** | **F** | **G** | **H** | **I** | **J** | **K** | **L** |
| Southern Company | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
| Alabama Power | ● | ● | ● | ● | | ● | ● | ● | ● | ● | | ● |
| Georgia Power | ● | ● | ● | ● | | ● | ● | ● | ● | ● | | ● |
| Mississippi Power | ● | ● | ● | ● | | ● | ● | ● | ● | ● | | ● |
| Southern Power | ● | | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
| Southern Company Gas | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | | ● |

---

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS**

**(UNAUDITED)**

(A) INTRODUCTION

The condensed quarterly financial statements of each Registrant included herein have been prepared by such Registrant, without audit, pursuant to the rules and regulations of the SEC. The Condensed Balance Sheets at December 31, 2025 have been derived from the audited financial statements of each Registrant. In the opinion of each Registrant's management, the information regarding such Registrant furnished herein reflects all adjustments, which, except as otherwise disclosed, are of a normal recurring nature, necessary to present fairly the results of operations for the periods ended March 31, 2026 and 2025. Certain information and disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations, although each Registrant believes that the disclosures regarding such Registrant are adequate to make the information presented not misleading. Disclosures which would substantially duplicate the disclosures in the Form 10-K and details which have not changed significantly in amount or composition since the filing of the Form 10-K are generally omitted from this Quarterly Report on Form 10-Q unless specifically required by GAAP. Therefore, these Condensed Financial Statements should be read in conjunction with the financial statements and the notes thereto included in the Form 10-K. Due to the seasonal variations in the demand for energy and other factors, operating results for the periods presented are not necessarily indicative of the operating results to be expected for the full year.

The preparation of financial statements in conformity with GAAP requires the use of estimates, and the actual results may differ from those estimates. Certain prior year data presented in the financial statements have been reclassified to conform to the current year presentation. These reclassifications had no impact on the overall results of operations, financial position, or cash flows of any Registrant.

**Goodwill and Other Intangible Assets**

Goodwill at both March 31, 2026 and December 31, 2025 was as follows:

---

| | |
|:---|:---|
| | **Goodwill** |
| | *(in millions)* |
| Southern Company | $5161 |
| Southern Company Gas: |  |
| &nbsp;&nbsp;&nbsp;Gas distribution operations | $4034 |
| &nbsp;&nbsp;&nbsp;Gas marketing services | 981 |
| Southern Company Gas total | $5015 |

---

Goodwill is not amortized but is subject to an annual impairment test during the fourth quarter of each year, or more frequently if goodwill impairment indicators exist.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

Other intangible assets were as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **At March 31, 2026** | **At March 31, 2026** | **At March 31, 2026** | **At December 31, 2025** | **At December 31, 2025** | **At December 31, 2025** |
| | **Gross<br>Carrying<br>Amount** | **Accumulated<br>Amortization** | **Other<br>Intangible<br>Assets,<br>Net** | **Gross<br>Carrying<br>Amount** | **Accumulated<br>Amortization** | **Other<br>Intangible<br>Assets,<br>Net** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Southern Company** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Subject to amortization: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Customer relationships | $**212** | $**(190)** | $**22** | $212 | $(189) | $23 |
| &nbsp;&nbsp;&nbsp;&nbsp;Trade names | **64** | **(64)** | **—** | 64 | (64) |  |
| &nbsp;&nbsp;&nbsp;&nbsp;PPA fair value adjustments | **390** | **(193)** | **197** | 390 | (188) | 202 |
| &nbsp;&nbsp;&nbsp;&nbsp;Other | **3** | **(3)** | **—** | 3 | (3) |  |
| &nbsp;&nbsp;&nbsp;Total subject to amortization | $**669** | $**(450)** | $**219** | $669 | $(444) | $225 |
| &nbsp;&nbsp;&nbsp;Not subject to amortization: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;FCC licenses | **75** | **—** | **75** | 75 |  | 75 |
| &nbsp;&nbsp;&nbsp;**Total other intangible assets** | $**744** | $**(450)** | $**294** | $744 | $(444) | $300 |
| **Southern Power**<sup>(\*)</sup> |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;PPA fair value adjustments | $**390** | $**(193)** | $**197** | $390 | $(188) | $202 |
| **Southern Company Gas**<sup>(\*)</sup> |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Gas marketing services |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Customer relationships | $**156** | $**(154)** | $**2** | $156 | $(153) | $3 |
| &nbsp;&nbsp;&nbsp;&nbsp;Trade names | **26** | **(26)** | **—** | 26 | (26) |  |
| &nbsp;&nbsp;&nbsp;**Total other intangible assets** | $**182** | $**(180)** | $**2** | $182 | $(179) | $3 |

---

(\*)All subject to amortization.

Amortization associated with other intangible assets was as follows:

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2026** | **2025** |
| | *(in millions)* | *(in millions)* |
| Southern Company<sup>(a)</sup> | $**7** | $8 |
| Southern Power<sup>(b)</sup> | **5** | 5 |
| Southern Company Gas |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Gas marketing services | **1** | 2 |

---

(a)Includes $5 million for the three months ended March 31, 2026 and 2025 recorded as a reduction to operating revenues.

(b)Recorded as a reduction to operating revenues.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

**Cash, Cash Equivalents, and Restricted Cash**

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed balance sheets that total to the amount shown in the condensed statements of cash flows for the applicable Registrants:

---

| | | |
|:---|:---|:---|
| | **Southern Company** | **Southern<br>Company Gas** |
| | *(in millions)* | *(in millions)* |
| **At March 31, 2026** |  |  |
| Cash and cash equivalents | $**981** | $**137** |
| Restricted cash<sup>(\*)</sup>: |  |  |
| &nbsp;&nbsp;Other current assets | **6** | **5** |
| Total cash, cash equivalents, and restricted cash | $**987** | $**142** |
| **At December 31, 2025** |  |  |
| Cash and cash equivalents | $1639 | $15 |
| Restricted cash<sup>(\*)</sup>: |  |  |
| &nbsp;&nbsp;Other current assets | 1 |  |
| Total cash, cash equivalents, and restricted cash | $1640 | $15 |

---

(\*)For Southern Company Gas, reflects funds held to support letters of credit. For Southern Company, also reflects collateral of $1 million for life insurance and long-term disability insurance, which was included at Southern Holdings.

**Natural Gas for Sale**

With the exception of Nicor Gas, Southern Company Gas records natural gas inventories on a weighted average cost basis. For any declines in market prices below the weighted average cost considered to be non-temporary, an adjustment is recorded to reduce the value of natural gas inventories to market value. Nicor Gas' natural gas inventory is carried at cost on a LIFO basis. Inventory decrements occurring during the year that are restored prior to year-end are charged to cost of natural gas at the estimated annual replacement cost. Inventory decrements that are not restored prior to year-end are charged to cost of natural gas at the actual LIFO cost of the inventory layers liquidated.

Southern Company Gas recorded no material adjustments to natural gas inventories for either period presented. Nicor Gas' inventory decrement at March 31, 2026 is expected to be restored prior to year end.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

(B) REGULATORY MATTERS

See Note 2 to the financial statements in Item 8 of the Form 10-K for additional information relating to regulatory matters.

The recovery balances for retail fuel and storm/property damage for the traditional electric operating companies and natural gas cost for Southern Company Gas at March 31, 2026 and December 31, 2025 were as follows:

---

| | | | |
|:---|:---|:---|:---|
| **Recovery/Regulatory Clause** | **Balance Sheet Location** | **At March 31, 2026** | **At December 31, 2025** |
| | | *(in millions)* | *(in millions)* |
| **Alabama Power** |  |  |  |
| Rate ECR | Other regulatory assets, deferred | $**200** | $146 |
| NDR | Other regulatory liabilities, deferred | **52** | 60 |
| **Georgia Power** |  |  |  |
| Fuel cost recovery | Receivables – under recovered retail fuel clause revenues | $**234** | $310 |
|  | Deferred under recovered retail fuel clause revenues | **210** | 212 |
| Storm damage recovery | Other regulatory assets, current | **31** | 31 |
|  | Other regulatory assets, deferred | **962** | 880 |
| **Mississippi Power** |  |  |  |
| Fuel cost recovery<sup>(\*)</sup> | Receivables – customer accounts, net | $**55** | $— |
|  | Deferred under recovered retail fuel clause revenues | **—** | 40 |
| Property damage reserve | Other regulatory liabilities, deferred | **57** | 57 |
| **Southern Company Gas** |  |  |  |
| Natural gas cost recovery | Natural gas cost over recovery | $**131** | $158 |

---

(\*)Mississippi Power also has wholesale MRA and Market Based (MB) fuel cost recovery factors. At March 31, 2026 and December 31, 2025, wholesale MRA fuel cost under recovery was $9 million and $6 million, respectively, and was included in customer accounts receivable, net on Mississippi Power's balance sheets. The wholesale MB fuel cost recovery was immaterial for both periods presented.

**Alabama Power**

***Power to the People Act***

In December 2025, the Alabama PSC issued a consent order to keep retail rates stable through 2027. On April 2, 2026, the State of Alabama enacted legislation providing that retail base rates established and in place on October 1, 2026 may not be increased before January 1, 2029 for utilities that are regulated by the Alabama PSC and that provide retail electric service. The ultimate outcome of this matter cannot be determined at this time.

***Reliability Reserve Accounting Order***

In accordance with the notification provided to the Alabama PSC through its annual Rate RSE filing indicating plans to use $60 million of the reliability reserve, Alabama Power utilized $21 million of its reliability reserve during the first quarter 2026 for reliability-related transmission, distribution, and generation expenses. At March 31, 2026, Alabama Power's reliability reserve balance was $163 million.

***Environmental Accounting Order***

As a result of the planned conversion of Plant Barry Unit 5 from coal to natural gas, the unit's net book value no longer meets the criteria to be considered probable of abandonment, and, in the first quarter 2026, approximately $307 million was reclassified from other utility plant, net to plant in service on Alabama Power's and Southern Company's balance sheets.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

**Georgia Power**

***Integrated Resource Plans***

*Certification Requests*

On March 25, 2026, Georgia Interfaith Power & Light, Park Avenue Baptist Church, Unitarian Universalist Church of Savannah, Sierra Club, Adrien Webber, and Southern Alliance for Clean Energy filed a petition with the Fulton County Superior Court appealing the Georgia PSC's December 19, 2025 approval of Georgia Power's request for certification of resources totaling 9,885 MWs (2025 All-Source Certification). The petition requests a reversal of the 2025 All-Source Certification, including a decertification of at least 757 MWs of resources. Georgia Power believes the appeal has no merit; however, the ultimate outcome of this matter cannot be determined at this time.

*2025 IRP*

On April 23, 2026, pursuant to the final order for Georgia Power's 2025 IRP, Georgia Power filed for approval to issue a request for proposals seeking 2,000 MWs to 6,000 MWs of resources to meet capacity needs in 2032 and 2033. Georgia Power projects a decision from the Georgia PSC regarding issuance in the second quarter 2026. The ultimate outcome of this matter cannot be determined at this time.

***Fuel Cost Recovery***

On each of March 13, 2026 and April 15, 2026, Georgia Power filed an Interim Fuel Rider (IFR) notification and plan informing the Georgia PSC that Georgia Power's under recovered fuel balance accumulated since May 31, 2023 exceeded $200 million (IFR Threshold), as established in a Georgia PSC stipulation approved in 2023, as of February 28, 2026 and March 31, 2026, respectively. Georgia Power did not propose a fuel cost recovery rate change pursuant to these IFR notifications and plans and is required to monitor and report to the Georgia PSC monthly as long as the under recovered fuel balance is above the IFR Threshold. Georgia Power expects the Georgia PSC to make a final decision on its February 2026 fuel case on May 28, 2026. The ultimate outcome of this matter cannot be determined at this time.

***Construction***

At March 31, 2026, Georgia Power had recorded approximately $3.7 billion of combined capital costs, excluding AFUDC, for the projects reflected in the table below approved by the Georgia PSC through the 2023 IRP Update and certification requests in September and December 2025 authorized through its 2022 IRP. The total certified

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

amounts related to these projects are approximately $19.5 billion, excluding AFUDC. The ultimate outcome of these matters cannot be determined at this time.

---

| | | |
|:---|:---|:---|
| **Resource/Project** | **Approximate Nameplate Capacity**<br>***(MW)*** | **Actual/Projected COD** |
| **Projects Under Construction at March 31, 2026** | **Projects Under Construction at March 31, 2026** | |
| ***Battery Energy Storage*** | | |
| &nbsp;&nbsp;&nbsp;&nbsp;McGrau Ford Phase 1 | 265 | Fourth quarter 2026 |
| &nbsp;&nbsp;&nbsp;&nbsp;Twiggs County | 200 | Fourth quarter 2027 |
| &nbsp;&nbsp;&nbsp;&nbsp;Wadley | 260 | Fourth quarter 2027 |
| &nbsp;&nbsp;&nbsp;&nbsp;Bowen Phase 1 | 250 | Fourth quarter 2028 |
| &nbsp;&nbsp;&nbsp;&nbsp;Bowen Phase 2 | 250 | Fourth quarter 2029 |
| &nbsp;&nbsp;&nbsp;&nbsp;South Hall | 250 | Fourth quarter 2028 |
| &nbsp;&nbsp;&nbsp;&nbsp;Wansley | 500 | Fourth quarter 2028 |
| &nbsp;&nbsp;&nbsp;&nbsp;Yates Phase 1  | 320 | Fourth quarter 2028 |
| &nbsp;&nbsp;&nbsp;&nbsp;Yates Phase 2  | 250 | Fourth quarter 2028 |
| &nbsp;&nbsp;&nbsp;&nbsp;Thomson | 500 | Fourth quarter 2029 |
| &nbsp;&nbsp;&nbsp;&nbsp;Hammond Phase 2 | 193 | Fourth quarter 2030 |
| &nbsp;&nbsp;&nbsp;&nbsp;McIntosh | 250 | Fourth quarter 2030 |
| &nbsp;&nbsp;&nbsp;&nbsp;Various facilities<sup>(a)</sup> | 372 | Second quarter 2026 through<br>fourth quarter 2026 |
| ***Solar with Battery Energy Storage*** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Laurens County | 200 | Fourth quarter 2028 |
| &nbsp;&nbsp;&nbsp;&nbsp;Plant Mitchell | 150 | Fourth quarter 2028 |
| ***Combined Cycle*** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Plant Bowen Unit 7 | 741 | Fourth quarter 2029 |
| &nbsp;&nbsp;&nbsp;&nbsp;Plant Bowen Unit 8 | 741 | Second quarter 2030 |
| &nbsp;&nbsp;&nbsp;&nbsp;Plant McIntosh Unit 12 | 757 | Fourth quarter 2030 |
| &nbsp;&nbsp;&nbsp;&nbsp;Plant Wansley Unit 10 | 727 | Fourth quarter 2029 |
| &nbsp;&nbsp;&nbsp;&nbsp;Plant Wansley Unit 11 | 727 | Second quarter 2030 |
| ***Combustion Turbine*** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Plant Yates Unit 8<sup>(b)</sup> | 442 | Fourth quarter 2026 |
| &nbsp;&nbsp;&nbsp;&nbsp;Plant Yates Unit 9<sup>(b)</sup> | 442 | Second quarter 2027 |
| &nbsp;&nbsp;&nbsp;&nbsp;Plant Yates Unit 10<sup>(b)</sup> | 442 | Third quarter 2027 |
| **Projects Completed During the Three Months Ended March 31, 2026** | **Projects Completed During the Three Months Ended March 31, 2026** |  |
| ***Battery Energy Storage*** |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Robins | 128 | March 2026 |

---

(a)Subsequent to March 31, 2026, Georgia Power completed construction of the 50-MW Moody battery energy storage facility.

(b)Pursuant to the 2023 IRP Update, cost recovery over the certified amount is limited.

**Mississippi Power**

***Performance Evaluation Plan***

On March 16, 2026, Mississippi Power submitted its annual retail PEP Evaluation Report for 2026 to the Mississippi PSC, which affirmed its request filed in November 2025 for a 1.8%, or $20 million, annual increase in revenues, primarily due to increases in investment and depreciation. In accordance with the PEP rate schedule, the increase became effective with the first billing cycle of January 2026, subject to refund. The Mississippi PSC is expected to render a final decision in the second quarter 2026. The ultimate outcome of this matter cannot be determined at this time.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

***Integrated Resource Plans***

On March 9, 2026, in compliance with its IRP requirements, Mississippi Power submitted its mid-point update to its 2024 IRP to the Mississippi PSC, indicating that the retirement dates of Plant Daniel Unit 2 and Plant Watson Unit 4 will extend beyond 2028.

The remaining net book value of Plant Daniel Unit 1 was approximately $124 million at March 31, 2026, and Mississippi Power is continuing to depreciate Plant Daniel Unit 1 using approved rates. Mississippi Power expects to reclassify the net book value remaining at retirement to a regulatory asset to be amortized over a period to be determined by the Mississippi PSC in future proceedings, consistent with a 2020 order. The ultimate outcome of this matter cannot be determined at this time.

***Environmental Compliance Overview Plan***

On April 14, 2026, the Mississippi PSC approved Mississippi Power's annual ECO Plan filing for 2026, resulting in a $2 million annual increase in revenues effective with the first billing cycle of May 2026.

***System Restoration Rider***

On March 2, 2026, Mississippi Power submitted its annual SRR filing for 2026 to the Mississippi PSC, indicating no change in retail rates. The filing includes a request to increase the minimum annual SRR accrual from $13.5 million to $13.7 million. The ultimate outcome of this matter cannot be determined at this time.

***Reliability Reserve Accounting Order***

On March 16, 2026, through its annual PEP Evaluation Report, Mississippi Power notified the Mississippi PSC of its intent to use approximately $8 million of its retail reliability reserve balance during 2026. During the first quarter 2026, Mississippi Power utilized the retail reliability reserve in the amount of $6 million for reliability-related generation, transmission, and distribution expenses. At March 31, 2026, Mississippi Power's retail reliability reserve balance was $52 million. See "Performance Evaluation Plan" herein for information regarding Mississippi Power's annual PEP filing.

(C) CONTINGENCIES

See Note 3 to the financial statements in Item 8 of the Form 10-K for information relating to various lawsuits and other contingencies.

**General Litigation Matters**

The Registrants are involved in various matters being litigated and regulatory matters. The ultimate outcome of such pending or potential litigation or regulatory matters against each Registrant and any subsidiaries cannot be determined at this time; however, for current proceedings not specifically reported herein, management does not anticipate that the ultimate liabilities, if any, arising from such current proceedings would have a material effect on such Registrant's financial statements.

The Registrants intend to dispute the allegations raised in and vigorously defend against the pending legal challenges discussed below; however, the ultimate outcome of each of these matters cannot be determined at this time.

***Southern Company***

In July 2025, a purported class action complaint was filed in the U.S. District Court for the District of Maryland against two nuclear consulting companies and all U.S. commercial nuclear power operators, or affiliated entities, including Southern Company. The purported class of plaintiffs includes all persons employed in nuclear power generation by the defendants, including nuclear operators, nuclear engineers, and nuclear technicians, from May 1, 2003 to the present. The complaint alleges that, since at least May 2003, the nuclear power industry conspired to fix and suppress employee compensation for nuclear power generation employees in violation of federal antitrust law.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

Although not named as defendants, other entities are accused of having participated in the plaintiffs' alleged conspiracy. The plaintiffs seek to recover, among other relief, unspecified monetary damages, including treble damages and attorneys' fees, and injunctive relief. In October 2025, Southern Company moved to dismiss the complaint. In November 2025, the plaintiffs filed an amended complaint naming Southern Nuclear, among others, as a defendant. In December 2025, Southern Company and Southern Nuclear filed a motion to dismiss the amended complaint. An adverse outcome could have a material impact on Southern Company's financial statements.

***Alabama Power***

In 2022, Mobile Baykeeper filed a citizen suit in the U.S. District Court for the Southern District of Alabama alleging that Alabama Power's plan to close the Plant Barry surface impoundment utilizing a closure-in-place methodology violates the Resource Conservation and Recovery Act (RCRA) and regulations governing CCR. Among other relief requested, Mobile Baykeeper sought a declaratory judgment that RCRA and regulations governing CCR were being violated, preliminary and injunctive relief to prevent implementation of Alabama Power's closure plan, and the development of a closure plan that satisfies regulations governing CCR requirements. Later in 2022, Alabama Power filed a motion to dismiss the case. In 2024, the lawsuit was dismissed without prejudice by the U.S. District Court judge. Later in 2024, the U.S. District Court judge denied a motion to reconsider filed by the plaintiff, and the plaintiff filed a notice of appeal in the U.S. Court of Appeals for the Eleventh Circuit challenging the denial of the motion to reconsider the order of dismissal.

In 2023, the EPA issued a Notice of Potential Violations (NOPV) associated with Alabama Power's plan to close the Plant Barry surface impoundment. In 2024, Alabama Power reached a settlement with the EPA resolving two of the three allegations in the NOPV related to the groundwater monitoring system and the emergency action plan at the Plant Barry surface impoundment. The settlement did not resolve the EPA's allegation relating to Alabama Power's plan to close the Plant Barry surface impoundment. Alabama Power has affirmed to the EPA its position that it is in compliance with CCR requirements.

In July 2025, Coosa Riverkeeper filed a citizen suit in the U.S. District Court for the Northern District of Alabama alleging that Alabama Power's closure of the Plant Gadsden surface impoundment utilizing a closure-in-place methodology violates RCRA and regulations governing CCR. Among other relief requested, Coosa Riverkeeper seeks declaratory judgment that Alabama Power is in violation of RCRA and regulations governing CCR, and preliminary and injunctive relief to require Alabama Power to close the CCR unit and operate a groundwater monitoring system in a different manner to satisfy RCRA and the regulations governing CCR requirements. In September 2025, Alabama Power filed a motion to dismiss the citizen suit.

These matters could have a material impact on Alabama Power's and Southern Company's financial statements, including ARO estimates and cash flows. See Note 6 to the financial statements in Item 8 of the Form 10-K for a discussion of Alabama Power's ARO liabilities.

**Environmental Remediation**

The Southern Company system must comply with environmental laws and regulations governing the handling and disposal of waste and releases of hazardous substances. Under these various laws and regulations, the Southern Company system could incur substantial costs to clean up affected sites. The traditional electric operating companies and the natural gas distribution utilities in Illinois and Georgia have each received authority from their respective state PSCs or other applicable state regulatory agencies to recover approved environmental remediation costs through regulatory mechanisms. These regulatory mechanisms are adjusted annually or as necessary within limits approved by the state PSCs or other applicable state regulatory agencies.

Georgia Power's environmental remediation liability was $14 million at both March 31, 2026 and December 31, 2025. Georgia Power has been designated or identified as a potentially responsible party at sites governed by the Georgia Hazardous Site Response Act and/or by the federal Comprehensive Environmental Response, Compensation, and Liability Act, and assessment and potential cleanup of such sites is expected.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

Southern Company Gas' environmental remediation liability was $219 million and $227 million at March 31, 2026 and December 31, 2025, respectively, based on the estimated cost of environmental investigation and remediation at known former manufactured gas plant operating sites.

The ultimate outcome of these matters cannot be determined at this time; however, as a result of the regulatory treatment for environmental remediation expenses described above, the final disposition of these matters is not expected to have a material impact on the financial statements of the applicable Registrants.

(D) REVENUE FROM CONTRACTS WITH CUSTOMERS AND LEASE INCOME

**Revenue from Contracts with Customers**

The Registrants generate revenues from a variety of sources, some of which are not accounted for as revenue from contracts with customers, such as leases, derivatives, and certain cost recovery mechanisms. Included in the wholesale electric revenues of the traditional electric operating companies and Southern Power are revenues associated with affiliate transactions. These revenues are generated through long-term PPAs or short-term energy sales made in accordance with the IIC, as approved by the FERC. Amounts related to these affiliate revenues are eliminated in consolidation for Southern Company. See Note 1 to the financial statements under "Affiliate Transactions" and "Revenues" in Item 8 of the Form 10-K for additional information. See "Lease Income" herein and Note (J) for additional information on revenue accounted for under lease and derivative accounting guidance, respectively.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

The following table disaggregates revenue from contracts with customers for the three months ended March 31, 2026 and 2025:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Southern<br>Company** | **Alabama<br>Power** | **Georgia<br>Power** | **Mississippi<br>Power** | **Southern<br>Power** | **Southern<br>Company<br>Gas** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Three Months Ended March 31, 2026** |  |  |  |  |  |  |
| ***Operating revenues*** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Retail electric revenues |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Residential | $**2003** | $**773** | $**1150** | $**80** | $**—** | $**—** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Commercial | **1663** | **477** | **1104** | **82** | **—** | **—** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Industrial | **942** | **414** | **438** | **90** | **—** | **—** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | **31** | **3** | **25** | **3** | **—** | **—** |
| &nbsp;&nbsp;&nbsp;***Total retail electric revenues*** | **4639** | **1667** | **2717** | **255** | **—** | **—** |
| &nbsp;&nbsp;&nbsp;Natural gas distribution revenues |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Residential | **1028** | **—** | **—** | **—** | **—** | **1028** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Commercial | **253** | **—** | **—** | **—** | **—** | **253** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Transportation | **440** | **—** | **—** | **—** | **—** | **440** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Industrial | **24** | **—** | **—** | **—** | **—** | **24** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | **145** | **—** | **—** | **—** | **—** | **145** |
| &nbsp;&nbsp;&nbsp;***Total natural gas distribution revenues*** | **1890** | **—** | **—** | **—** | **—** | **1890** |
| &nbsp;&nbsp;&nbsp;Wholesale electric revenues |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PPA energy revenues | **496** | **46** | **64** | **4** | **392** | **—** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PPA capacity revenues | **149** | **18** | **44** | **21** | **83** | **—** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-PPA revenues | **89** | **119** | **44** | **169** | **44** | **—** |
| &nbsp;&nbsp;&nbsp;***Total wholesale electric revenues*** | **734** | **183** | **152** | **194** | **519** | **—** |
| &nbsp;&nbsp;&nbsp;Other natural gas revenues |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gas marketing services | **281** | **—** | **—** | **—** | **—** | **281** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | **3** | **—** | **—** | **—** | **—** | **3** |
| &nbsp;&nbsp;***Total other natural gas revenues*** | **284** | **—** | **—** | **—** | **—** | **284** |
| &nbsp;&nbsp;&nbsp;Other revenues | **493** | **78** | **236** | **15** | **4** | **—** |
| ***Total revenue from contracts with customers*** | **8040** | **1928** | **3105** | **464** | **523** | **2174** |
| &nbsp;&nbsp;Other revenue sources<sup>(\*)</sup> | **357** | **164** | **37** | **8** | **158** | **17** |
| ***Total operating revenues*** | $**8397** | $**2092** | $**3142** | $**472** | $**681** | $**2191** |

---

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Southern<br>Company** | **Alabama<br>Power** | **Georgia<br>Power** | **Mississippi<br>Power** | **Southern<br>Power** | **Southern<br>Company<br>Gas** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Three Months Ended March 31, 2025** |  |  |  |  |  |  |
| ***Operating revenues*** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Retail electric revenues |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Residential | $2065 | $805 | $1186 | $74 | $— | $— |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Commercial | 1612 | 482 | 1055 | 75 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Industrial | 915 | 390 | 444 | 81 |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | 31 | 3 | 26 | 2 |  |  |
| &nbsp;&nbsp;&nbsp;***Total retail electric revenues*** | 4623 | 1680 | 2711 | 232 |  |  |
| &nbsp;&nbsp;&nbsp;Natural gas distribution revenues |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Residential | 845 |  |  |  |  | 845 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Commercial | 199 |  |  |  |  | 199 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Transportation | 406 |  |  |  |  | 406 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Industrial | 18 |  |  |  |  | 18 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | 112 |  |  |  |  | 112 |
| &nbsp;&nbsp;&nbsp;***Total natural gas distribution revenues*** | 1580 |  |  |  |  | 1580 |
| &nbsp;&nbsp;&nbsp;Wholesale electric revenues |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PPA energy revenues | 415 | 54 | 84 | 3 | 284 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PPA capacity revenues | 149 | 28 | 39 | 17 | 82 |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-PPA revenues | 71 | 69 | 9 | 134 | 62 |  |
| &nbsp;&nbsp;&nbsp;***Total wholesale electric revenues*** | 635 | 151 | 132 | 154 | 428 |  |
| &nbsp;&nbsp;&nbsp;Other natural gas revenues |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Gas marketing services | 256 |  |  |  |  | 256 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | 4 |  |  |  |  | 4 |
| &nbsp;&nbsp;***Total other natural gas revenues*** | 260 |  |  |  |  | 260 |
| &nbsp;&nbsp;&nbsp;Other revenues | 493 | 83 | 230 | 20 | 4 |  |
| ***Total revenue from contracts with customers*** | 7591 | 1914 | 3073 | 406 | 432 | 1840 |
| &nbsp;&nbsp;Other revenue sources<sup>(\*)</sup> | 184 | 98 | (36) | 14 | 135 | (1) |
| ***Total operating revenues*** | $7775 | $2012 | $3037 | $420 | $567 | $1839 |

---

(\*)Other revenue sources relate to revenues from customers accounted for as derivatives and leases, alternative revenue programs primarily at Southern Company Gas, and cost recovery mechanisms and revenues (including those related to fuel costs) that meet other scope exceptions for revenues from contracts with customers at the traditional electric operating companies.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

***Contract Balances***

The following table reflects the closing balances of receivables, contract assets, and contract liabilities related to revenues from contracts with customers at March 31, 2026 and December 31, 2025:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Southern<br>Company** | **Alabama<br>Power** | **Georgia<br>Power** | **Mississippi<br>Power** | **Southern<br>Power** | **Southern<br>Company<br>Gas** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| ***Accounts Receivable*** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;At March 31, 2026 | $**3083** | $**649** | $**1179** | $**119** | $**94** | $**925** |
| &nbsp;&nbsp;&nbsp;&nbsp;At December 31, 2025 | 3139 | 716 | 1278 | 115 | 132 | 864 |
| ***Contract Assets*** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;At March 31, 2026 | $**338** | $**5** | $**196** | $**—** | $**—** | $**67** |
| &nbsp;&nbsp;&nbsp;&nbsp;At December 31, 2025 | 294 | 3 | 160 |  |  | 67 |
| ***Contract Liabilities*** |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;At March 31, 2026 | $**257** | $**9** | $**76** | $**2** | $**1** | $**—** |
| &nbsp;&nbsp;&nbsp;&nbsp;At December 31, 2025 | 213 | 6 | 75 |  | 2 |  |

---

Contract assets for Georgia Power primarily relate to unregulated service agreements, where payment is contingent on project completion, and retail customer fixed bill programs, where payment is contingent upon Georgia Power's continued performance and the customer's continued participation in the program over a one-year contract term. Contract liabilities for Georgia Power primarily relate to cash collections recognized in advance of revenue for unregulated service agreements. Southern Company Gas' contract assets relate to work performed on an energy efficiency enhancement and upgrade contract with the U.S. General Services Administration. Southern Company Gas received cash advances totaling approximately $68 million from a third-party financial institution to fund work performed. These advances have been accounted for as long-term debt on the balance sheets. See Note 1 to the financial statements under "Affiliate Transactions" in Item 8 of the Form 10-K for additional information regarding the construction contract. At March 31, 2026 and December 31, 2025, Southern Company's unregulated distributed generation business had contract assets of $69 million and $63 million, respectively, and contract liabilities of $170 million and $132 million, respectively, for outstanding performance obligations, all of which are expected to be satisfied within one year.

Revenues recognized in the three months ended March 31, 2026, which were included in contract liabilities at December 31, 2025, were $55 million for Southern Company, $11 million for Georgia Power, and immaterial for the other Registrants. Contract liabilities are primarily classified as current on the balance sheets as the corresponding revenues are generally expected to be recognized within one year.

***Remaining Performance Obligations***

Southern Company's subsidiaries may enter into long-term contracts with customers in which revenues are recognized as performance obligations are satisfied over the contract term. For the traditional electric operating companies and Southern Power, these contracts primarily relate to PPAs whereby electricity and generation capacity are provided to a customer. The revenue recognized for the delivery of electricity is variable; however, certain PPAs include a fixed payment for fixed generation capacity over the term of the contract. Southern Company's unregulated distributed generation business also has partially satisfied performance obligations related

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

to certain fixed price contracts. Revenues from contracts with customers related to these performance obligations remaining at March 31, 2026 are expected to be recognized as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **2026 (remaining)** | **2027** | **2028** | **2029** | **2030** | **Thereafter** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| Southern Company | $875 | $679 | $452 | $412 | $416 | $3130 |
| Alabama Power | 8 | 5 | 4 | 2 | 1 | 6 |
| Georgia Power | 48 | 60 | 43 | 22 | 22 | 146 |
| Mississippi Power<sup>(\*)</sup> | 49 | 69 | 73 | 12 |  |  |
| Southern Power<sup>(\*)</sup> | 270 | 349 | 389 | 393 | 393 | 2978 |
| Southern Company Gas | 31 | 21 |  |  |  |  |

---

(\*)Includes performance obligations related to affiliate PPAs with Georgia Power. See Note 1 to the financial statements under "Affiliate Transactions" in Item 8 of the Form 10-K for additional information.

**Lease Income**

Lease income for the three months ended March 31, 2026 and 2025 was as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Southern<br>Company** | **Alabama<br>Power** | **Georgia<br>Power** | **Mississippi<br>Power** | **Southern<br>Power** | **Southern<br>Company<br>Gas** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** |
| Lease income - interest income on sales-type leases | $**5** | $**—** | $**—** | $**3** | $**2** | $**—** |
| Lease income - operating leases | **34** | **3** | **7** | **1** | **37** | **9** |
| Variable lease income | **79** | **—** | **—** | **—** | **87** | **—** |
| Total lease income | $**118** | $**3** | $**7** | $**4** | $**126** | $**9** |
| **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** |
| Lease income - interest income on sales-type leases | $6 | $— | $— | $4 | $2 | $— |
| Lease income - operating leases | 33 | 2 | 7 | 1 | 37 | 9 |
| Variable lease income | 81 |  |  |  | 89 |  |
| Total lease income | $120 | $2 | $7 | $5 | $128 | $9 |

---

Lease payments received under tolling arrangements and PPAs consist of either scheduled payments or variable payments based on the amount of energy produced by the underlying electric generating units. Lease income related to PPAs is included in wholesale revenues for Alabama Power, Georgia Power, and Southern Power.

(E) CONSOLIDATED ENTITIES AND EQUITY METHOD INVESTMENTS

See Note 7 to the financial statements in Item 8 of the Form 10-K for additional information.

**Southern Company**

At March 31, 2026 and December 31, 2025, Southern Holdings had equity method investments totaling $125 million and $124 million, respectively, primarily related to investments in venture capital funds focused on energy and utility investments. Earnings/losses from these investments were immaterial for all periods presented.

**Southern Power**

***Variable Interest Entities***

Southern Power has certain subsidiaries that are determined to be VIEs. Southern Power is considered the primary beneficiary of these VIEs because it controls the most significant activities of the VIEs, including operating and

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

maintaining the respective assets, and has the obligation to absorb expected losses of these VIEs to the extent of its equity interests.

*SP Solar*

At March 31, 2026 and December 31, 2025, SP Solar had total assets of $5.1 billion and $5.2 billion, respectively, total liabilities of $361 million and $360 million, respectively, and noncontrolling interests of $899 million and $918 million, respectively. Cash distributions from SP Solar are allocated 67% to Southern Power and 33% to the limited partner in accordance with their partnership interest percentage. Under the terms of the limited partnership agreement, distributions without limited partner consent are limited to available cash and SP Solar is obligated to distribute all such available cash to its partners each quarter. Available cash includes all cash generated in the quarter subject to the maintenance of appropriate operating reserves.

Southern Power consolidates SP Solar, as the primary beneficiary, since it controls the most significant activities of the entity, including operating and maintaining its assets. Certain transfers and sales of the assets in the VIE are subject to partner consent, and the liabilities are non-recourse to the general credit of Southern Power. Liabilities consist of customary working capital items and do not include any long-term debt.

*Other Variable Interest Entities*

Southern Power has other consolidated VIEs that relate to certain subsidiaries that have either sold noncontrolling interests to tax equity investors or acquired less than a 100% interest from facility developers. These entities are considered VIEs because the arrangements are structured similar to a limited partnership and the noncontrolling members do not have substantive kick-out rights.

At March 31, 2026 and December 31, 2025, the other VIEs had total assets of $1.6 billion, total liabilities of $246 million and $236 million, respectively, and noncontrolling interests of $590 million and $617 million, respectively. Under the terms of the partnership agreements, distributions of all available cash are required each month or quarter and additional distributions require partner consent.

**Southern Company Gas**

The carrying amounts of Southern Company Gas' equity method investments at March 31, 2026 and December 31, 2025 were as follows:

---

| | | |
|:---|:---|:---|
| **Investment Balance** | **At March 31, 2026** | **At December 31, 2025** |
| | *(in millions)* | *(in millions)* |
| SNG | $**1190** | $1148 |
| Other | **34** | 34 |
| Total | $**1224** | $1182 |

---

The earnings from Southern Company Gas' equity method investment in SNG were $46 million and $39 million for the three months ended March 31, 2026 and 2025, respectively. The earnings from Southern Company Gas' other equity method investments were immaterial for all periods presented.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

(F) FINANCING

**Bank Credit Arrangements**

See Note 8 to the financial statements under "Bank Credit Arrangements" in Item 8 of the Form 10-K for additional information.

At March 31, 2026, committed credit arrangements with banks were as follows:

---

| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Expires** | **Expires** | **Expires** | **Expires** | **Expires** | | | |
|<br>**Company** | **2026** | **2028** | **2029** | **2030** | **2031** | **Total** | **Unused** |<br>**Expires within<br>One Year** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| Southern Company parent<sup>(a)</sup> | $— | $500 | $— | $— | $2500 | $3000 | $2999 | $— |
| Alabama Power<sup>(b)</sup> | 15 |  | 650 | 700 |  | 1365 | 1365 | 15 |
| Georgia Power<sup>(c)</sup> |  |  |  |  | 2050 | 2050 | 2042 |  |
| Mississippi Power<sup>(a)</sup> |  |  | 125 |  | 150 | 275 | 275 |  |
| Southern Power<sup>(a)(d)</sup> |  |  |  |  | 600 | 600 | 600 |  |
| Southern Company Gas<sup>(e)</sup> |  |  |  | 1600 |  | 1600 | 1598 |  |
| SEGCO | 30 |  |  |  |  | 30 | 30 | 30 |
| Southern Company | $45 | $500 | $775 | $2300 | $5300 | $8920 | $8909 | $45 |

---

(a)Arrangement expiring in 2031 represents a $3.25 billion combined arrangement for Southern Company, Mississippi Power, and Southern Power allowing for flexible sublimits. Pursuant to the combined facility, the allocations among Southern Company, Mississippi Power, and Southern Power may be adjusted.

(b)Includes $15 million expiring in 2026 at Alabama Property Company, a wholly-owned subsidiary of Alabama Power, of which $15 million was unused at March 31, 2026. Alabama Power is not party to this arrangement.

(c)Georgia Power had $26 million of letters of credit outstanding under an uncommitted letter of credit facility at March 31, 2026.

(d)Does not include Southern Power Company's $75 million and $100 million continuing letter of credit facilities for standby letters of credit, expiring in 2027 and 2028, respectively, of which $17 million and $4 million, respectively, was unused at March 31, 2026. In addition, Southern Power Company had $23 million of letters of credit outstanding under an uncommitted letter of credit facility at March 31, 2026. Southern Power's subsidiaries are not parties to its bank credit arrangements or letter of credit facilities.

(e)Southern Company Gas, as the parent entity, guarantees the obligations of Southern Company Gas Capital, which is the borrower of $800 million of the credit arrangement expiring in 2030. Southern Company Gas' committed credit arrangement expiring in 2030 also includes $800 million for which Nicor Gas is the borrower and which is restricted for working capital needs of Nicor Gas. Pursuant to the multi-year credit arrangement expiring in 2030, the allocations between Southern Company Gas Capital and Nicor Gas may be adjusted.

As reflected in the table above, in March 2026, (i) Southern Company, Mississippi Power, and Southern Power extended the maturity date of their $3.25 billion combined multi-year credit arrangement from 2030 to 2031, (ii) Southern Company extended the maturity date of its multi-year credit agreement from 2027 to 2028, (iii) Georgia Power extended the maturity date of its multi-year credit arrangement from 2030 to 2031, and (iv) Mississippi Power extended the maturity date of its multi-year credit agreement from 2027 to 2029.

Subject to applicable market conditions, Southern Company and its subsidiaries expect to renew or replace their bank credit arrangements as needed, prior to expiration. In connection therewith, Southern Company and its subsidiaries may extend the maturity dates and/or increase or decrease the lending commitments thereunder.

These bank credit arrangements, as well as the term loan arrangements of the Registrants, Nicor Gas, and SEGCO, contain covenants that limit debt levels and contain cross-acceleration provisions to other indebtedness (including guarantee obligations) that are restricted only to the indebtedness of the individual company. The cross-acceleration provisions to other indebtedness would trigger an event of default if the applicable borrower defaulted on indebtedness, the payment of which was then accelerated. At March 31, 2026, the Registrants, Nicor Gas, and SEGCO were in compliance with all such covenants. None of the bank credit arrangements contain material adverse change clauses at the time of borrowings.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

A portion of the unused credit with banks is allocated to provide liquidity support to certain revenue bonds of the traditional electric operating companies and the commercial paper programs of the Registrants, Nicor Gas, and SEGCO. At March 31, 2026, outstanding variable rate demand revenue bonds of the traditional electric operating companies with allocated liquidity support totaled approximately $1.5 billion (comprised of approximately $796 million at Alabama Power, $667 million at Georgia Power, and $58 million at Mississippi Power). In addition, at March 31, 2026, Alabama Power and Georgia Power had approximately $160 million and $325 million, respectively, of fixed rate revenue bonds outstanding that are required to be remarketed within the next 12 months. Alabama Power's $160 million of fixed rate revenue bonds are classified as securities due within one year on its balance sheets as they are not covered by long-term committed credit. All other variable rate demand revenue bonds and fixed rate revenue bonds required to be remarketed within the next 12 months are classified as long-term debt on the balance sheets as a result of available long-term committed credit.

**DOE Loan Guarantee Borrowings**

On February 20, 2026, pursuant to the loan guarantee program (DOE Loan Guarantee Program) established under Title XVII of the Energy Policy Act of 2005, as amended (Title XVII), Alabama Power entered into (i) a loan guarantee agreement, dated as of February 20, 2026 (Alabama Power LGA), between Alabama Power and the DOE, as guarantor, (ii) a note purchase agreement, dated as of February 20, 2026 (Alabama Power NPA), among Alabama Power, the FFB, and the Secretary of Energy, acting through the DOE, and (iii) future advance promissory notes, each dated February 20, 2026, made by Alabama Power to the FFB (each an Alabama Power FFB Note and, together with the Alabama Power NPA, the Alabama Power FFB Credit Facility Documents). The Alabama Power LGA and the Alabama Power FFB Credit Facility Documents are referred to herein together as the Alabama Power Loan Documents.

In addition, on February 20, 2026, pursuant to the DOE Loan Guarantee Program, Georgia Power entered into (i) a loan guarantee agreement, dated as of February 20, 2026 (Georgia Power LGA and, together with the Alabama Power LGA, the Loan Guarantee Agreements), between Georgia Power and the DOE, as guarantor, (ii) a note purchase agreement, dated as of February 20, 2026 (Georgia Power NPA), among Georgia Power, the FFB, and the Secretary of Energy, acting through the DOE, and (iii) future advance promissory notes, each dated February 20, 2026, made by Georgia Power to the FFB (each a Georgia Power FFB Note and, together with the Georgia Power NPA, the Georgia Power FFB Credit Facility Documents). The Georgia Power LGA and the Georgia Power FFB Credit Facility Documents are referred to herein together as the Georgia Power Loan Documents.

The Alabama Power FFB Credit Facility Documents provide for a multi-advance term loan facility under which Alabama Power may make term loan borrowings through the FFB (Alabama Power Credit Facility). The Georgia Power FFB Credit Facility Documents provide for a multi-advance term loan facility under which Georgia Power may make term loan borrowings through the FFB (Georgia Power Credit Facility and, together with the Alabama Power Credit Facility, the Credit Facilities). Each of Alabama Power and Georgia Power is referred to herein as a Borrower in connection with its applicable Credit Facility.

Proceeds of advances made under each Credit Facility must be used for the purpose of reimbursing the applicable Borrower for a portion (up to 80%) of "eligible project costs" (as defined in the applicable Loan Guarantee Agreement) incurred by such Borrower for projects that are eligible for financing under the terms of the applicable Loan Guarantee Agreement and the DOE Loan Guarantee Program (Eligible Projects). Eligible Projects may include new gas generating units and upgrades associated with existing gas generating units; new transmission lines, substations, and transmission system upgrades; new stand-alone battery energy storage systems; hydropower refurbishment and upgrades; upgrades, uprates, and license extensions for existing nuclear facilities; coal-to-gas conversions; and grid enhancements.

The aggregate amount of advances under the Alabama Power Credit Facility may not exceed approximately $4.1 billion (Alabama Power Maximum Facility Amount). The aggregate amount of advances under the Georgia Power Credit Facility may not exceed approximately $22.4 billion (Georgia Power Maximum Facility Amount and, together with the Alabama Power Maximum Facility Amount, the Maximum Facility Amounts). Each Borrower may request advances under its applicable Credit Facility during an availability period (with respect to each

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

Borrower, the "availability period") that will continue until the earliest of (i) September 15, 2033, (ii) the date total advances reach the applicable Maximum Facility Amount, or (iii) the termination of the obligation to fund further advances following an event of default under the applicable Loan Guarantee Agreement. In addition, the FFB's obligation to fund advances to Alabama Power will terminate if Alabama Power has failed to request an initial advance by February 20, 2031.

In March 2026, Georgia Power received initial advances under the Georgia Power Credit Facility in an amount of approximately $1.0 billion at an interest rate of 5.041% through the final maturity date of December 10, 2055.

Future advances under each of the Credit Facilities are subject to confirmation of investment grade credit ratings and satisfaction of customary conditions, as well as certification of compliance with the requirements of Title XVII, including accuracy of project-related representation and warranties, delivery of updated project-related information, and evidence of compliance with the prevailing wage requirements of the Davis-Bacon Act of 1931, as amended (DOE Program Requirements), compliance with the Cargo Preference Act of 1954, and certification from the DOE's consulting engineer that proceeds of the advances are used to reimburse for eligible project costs.

All borrowings under each of the Credit Facilities will be full recourse, senior unsecured obligations of the respective Borrower. Alabama Power is not a party to, and has no obligations with respect to, the Georgia Power Credit Facility. Georgia Power is not a party to, and has no obligations with respect to, the Alabama Power Credit Facility.

The final scheduled maturity date for all borrowings under each Credit Facility is December 10, 2055. Each advance will bear interest at a rate equal to the applicable U.S. Treasury rate plus a spread of 0.375%, which rate will be determined at the time of the advance. Principal payments for the Alabama Power Credit Facility are payable in three equal annual installments, beginning on December 10, 2053. Principal payments for the Georgia Power Credit Facility are payable in seven equal annual installments, beginning on December 10, 2049.

Under each of the Loan Guarantee Agreements, the DOE agreed to provide guarantees with respect to the obligations of Alabama Power and Georgia Power under the Alabama Power FFB Credit Facility Documents and Georgia Power FFB Credit Facility Documents, respectively. Under their respective Loan Guarantee Agreements, Alabama Power and Georgia Power are obligated to reimburse the DOE for any amounts the DOE is required to pay with respect to such guarantees. Alabama Power's and Georgia Power's reimbursement obligations to the DOE are full recourse, senior unsecured obligations of the respective Borrower.

Under each Loan Guarantee Agreement, the applicable Borrower is subject to customary affirmative and negative covenants and events of default. In addition, Alabama Power and Georgia Power are subject to project-related reporting requirements and other project-specific covenants and events of default.

Under each Loan Guarantee Agreement, the applicable Borrower will be required to prepay certain amounts outstanding under the applicable Credit Facility if (i) the applicable Borrower takes any action that causes an Eligible Project to cease to be an Eligible Project, (ii) certain "termination events" (as defined in the applicable Loan Guarantee Agreement) occur with respect to any Eligible Project of the applicable Borrower, (iii) eligible project costs recoverable in customer rates of the applicable Borrower are less than 95% of total advances made to the applicable Borrower under the applicable Credit Facility, with such amount tested on the third anniversary of the termination of the applicable availability period, or (iv) the applicable Borrower receives advances for certain preliminary costs and fails to satisfy the DOE Program Requirements. Any mandatory prepayment will be made in quarterly installments and, depending on the size of the required mandatory prepayment, will be payable over a period of one to three years (in the case of Alabama Power) or one to five years (in the case of Georgia Power). Any such mandatory prepayment will be at a prepayment price equal to 100% of the principal amount to be prepaid, plus accrued and unpaid interest to the date of prepayment.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

In addition, if a "change of control" (as defined in the applicable Loan Guarantee Agreement) occurs with respect to the applicable Borrower, such Borrower will be required to offer to prepay all outstanding advances under its Credit Facility. Any such prepayment will be made with a make-whole premium or discount, as applicable.

Each Borrower will be permitted to voluntarily prepay all or a portion of any outstanding advances. Any such prepayment will be made with a make-whole premium or discount, as applicable.

**Equity Distribution Agreement**

See Note 8 to the financial statements under "Equity Distribution Agreement" in Item 8 of the Form 10-K for additional information.

The table below reflects shares of Southern Company common stock sold and settled under separate forward sale contracts with forward purchasers during the three months ended March 31, 2026.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Shares Sold** | **Initial Forward Price per Share** | **To be Settled On or Before** | **Forward Price Per Share Settled** | **Shares Issued to Settle** | **Settlement Date** |
| **Sold during 2025** | **Sold during 2025** | **Sold during 2025** | **Sold during 2025** | **Sold during 2025** | **Sold during 2025** |
| 3255866 | $89.4692 | December 31, 2026 | $89.2443 | 3255866 | March 2, 2026 |
| 2314487 | $92.7805 | June 30, 2027 | $92.8723 | 2314487 | March 2, 2026 |
| **Sold during 2026** | **Sold during 2026** | **Sold during 2026** | **Sold during 2026** | **Sold during 2026** | **Sold during 2026** |
| 1467305 | $96.3883 | March 31, 2028 | N/A | N/A | N/A |
| 1896549 | $97.5815 | March 31, 2028 | N/A | N/A | N/A |
| 1903317 | $95.5086 | March 31, 2028 | N/A | N/A | N/A |

---

As of March 31, 2026, Southern Company had entered into separate forward sale contracts with forward purchasers for a total of 49,885,779 shares of common stock, all of which had been sold by the forward sellers. Of these shares, 5,570,353 shares were settled during the three months ended March 31, 2026 in the form of shares at the initial forward price adjusted for interest earned and dividends paid from the forward sale date to the settlement date. The net proceeds from the shares settled during the three months ended March 31, 2026 were approximately $506 million.

The total number of shares sold remaining under the forward sale contracts subject to settlement at a future date is 27,398,371. Each initial forward price is subject to adjustment under certain circumstances as specified in the respective forward sales contracts. Southern Company may settle each of the forward transactions in shares, cash, or net shares.

**Earnings per Share**

For Southern Company, the difference in computing basic and diluted EPS is attributable to awards outstanding under stock-based compensation plans, forward sale contracts pursuant to the equity distribution agreement, convertible senior notes, and equity units. EPS dilution resulting from stock-based compensation plans and the forward sale contracts is determined using the treasury stock method. EPS dilution resulting from the convertible senior notes is determined using the net share settlement method. See "Equity Distribution Agreement" herein and Note 8 to the financial statements under "Convertible Senior Notes," "Equity Distribution Agreement," and "Equity

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

Units" and Note 12 to the financial statements in Item 8 of the Form 10-K for additional information. Shares used to compute diluted EPS were as follows:

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| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2026** | **2025** |
|  | *(in millions)* | *(in millions)* |
| As reported shares | **1124** | 1100 |
| Effect of stock-based compensation | **4** | 5 |
| Diluted shares | **1128** | 1105 |

---

For both periods presented, an immaterial number of stock-based compensation awards was excluded from the diluted EPS calculation because the awards were anti-dilutive.

For both periods presented, dilution resulting from convertible senior notes and forward sale contracts was immaterial.

(G) INCOME TAXES

See Note 10 to the financial statements in Item 8 of the Form 10-K for additional tax information.

**Cash Paid for Income Taxes**

Alabama Power, Georgia Power, and Southern Power have entered into transferability agreements with non-affiliated parties to sell ITCs and PTCs at a discount to the generated credit value in 2024, 2025, and 2026. The discount is recorded as a reduction in tax credits recognized in the financial statements and does not have a material impact on results of operations. Subsequent to March 31, 2026, Alabama Power, Georgia Power, and Southern Power received cash of $6 million, $33 million, and $12 million, respectively, from credits transferred. The Southern Company system continues to explore the ability to efficiently monetize its tax credits through third-party transfer agreements.

During the first three months of 2026, pursuant to certain joint ownership agreements, Georgia Power paid $45 million to the other Vogtle Owners for advanced nuclear PTCs for Plant Vogtle Units 3 and 4. The gain was recognized as an income tax benefit and was immaterial.

**Effective Tax Rate**

Southern Company's effective tax rate is typically lower than the statutory rate due to employee stock plans' dividend deduction, non-taxable AFUDC equity at the traditional electric operating companies, flowback of excess deferred income taxes at the regulated utilities, and federal income tax benefits from ITCs and PTCs.

Details of significant changes in the effective tax rate for the applicable Registrants are provided herein.

***Southern Company***

Southern Company's effective tax rate was 14.5% for the three months ended March 31, 2026 compared to 18.1% for the corresponding period in 2025. The effective tax rate decrease was primarily due to an increase in federal PTCs at Southern Power and an increase in amortization of federal PTCs at Georgia Power.

***Georgia Power***

Georgia Power's effective tax rate was 11.9% for the three months ended March 31, 2026 compared to 14.2% for the corresponding period in 2025. The effective tax rate decrease was primarily due to an increase in amortization of federal PTCs.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

***Southern Power***

Southern Power's effective tax rate benefit was (82.6)% for the three months ended March 31, 2026 compared to (5.3)% for the corresponding period in 2025. The effective tax rate benefit increase was primarily due to an increase in federal PTCs resulting from Southern Power's purchase of the noncontrolling membership interests in the SP Wind tax equity partnership, as well as a change in pre-tax earnings attributable to Southern Power, including the impact of accelerated depreciation related to wind repowering projects. See Note (K) under "Southern Power – Wind Repowering Projects" and Notes 5 and 15 to the financial statement under "Depreciation and Amortization – Southern Power" and "Southern Power – Purchase of Renewable Facility Interests," respectively, in Item 8 of the Form 10-K for additional information.

(H) RETIREMENT BENEFITS

The Southern Company system has a qualified defined benefit, trusteed, pension plan covering substantially all employees, with the exception of employees at PowerSecure. The qualified pension plan is funded in accordance with requirements of the Employee Retirement Income Security Act of 1974, as amended. No mandatory contributions to the qualified pension plan are anticipated for the year ending December 31, 2026. The Southern Company system also provides certain non-qualified defined benefits for a select group of management and highly compensated employees, which are funded on a cash basis. In addition, the Southern Company system provides certain medical care and life insurance benefits for retired employees through other postretirement benefit plans. The traditional electric operating companies fund other postretirement trusts to the extent required by their respective regulatory commissions.

See Note 11 to the financial statements in Item 8 of the Form 10-K for additional information.

On each Registrant's condensed statements of income, the service cost component of net periodic benefit costs is included in other operations and maintenance expenses and all other components of net periodic benefit costs are included in other income (expense), net. Components of the net periodic benefit costs for the three months ended March 31, 2026 and 2025 are presented in the following tables.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Southern<br>Company** | **Alabama<br>Power** | **Georgia<br>Power** | **Mississippi<br>Power** | **Southern<br>Power** | **Southern<br>Company<br>Gas** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** |  |  |  |  |  |
| ***Pension Plans*** | ***Pension Plans*** | ***Pension Plans*** | ***Pension Plans*** | ***Pension Plans*** | ***Pension Plans*** | ***Pension Plans*** |
| Service cost | $**69** | $**15** | $**17** | $**3** | $**2** | $**7** |
| Interest cost | **162** | **38** | **47** | **7** | **2** | **11** |
| Expected return on plan assets | **(322)** | **(79)** | **(99)** | **(15)** | **(4)** | **(21)** |
| Amortization: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Prior service costs | **—** | **—** | **—** | **—** | **—** | **(1)** |
| &nbsp;&nbsp;&nbsp;Regulatory asset | **—** | **—** | **—** | **—** | **—** | **3** |
| &nbsp;&nbsp;&nbsp;Net loss | **18** | **5** | **6** | **1** | **—** | **—** |
| Net periodic pension income | $**(73)** | $**(21)** | $**(29)** | $**(4)** | $**—** | $**(1)** |
| ***Postretirement Benefits*** | ***Postretirement Benefits*** | ***Postretirement Benefits*** | ***Postretirement Benefits*** | ***Postretirement Benefits*** | ***Postretirement Benefits*** | ***Postretirement Benefits*** |
| Service cost | $**3** | $**1** | $**1** | $**—** | $**—** | $**—** |
| Interest cost | **16** | **4** | **6** | **1** | **—** | **2** |
| Expected return on plan assets | **(23)** | **(9)** | **(8)** | **(1)** | **—** | **(2)** |
| Amortization: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Prior service costs | **1** | **—** | **—** | **—** | **—** | **—** |
| &nbsp;&nbsp;&nbsp;Net gain | **(2)** | **—** | **—** | **—** | **—** | **(2)** |
| Net periodic postretirement benefit income | $**(5)** | $**(4)** | $**(1)** | $**—** | $**—** | $**(2)** |

---

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Southern<br>Company** | **Alabama<br>Power** | **Georgia<br>Power** | **Mississippi<br>Power** | **Southern<br>Power** | **Southern<br>Company<br>Gas** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** |  |  |  |  |  |
| ***Pension Plans*** | ***Pension Plans*** | ***Pension Plans*** | ***Pension Plans*** | ***Pension Plans*** | ***Pension Plans*** | ***Pension Plans*** |
| Service cost | $66 | $15 | $16 | $3 | $1 | $7 |
| Interest cost | 166 | 39 | 49 | 7 | 2 | 11 |
| Expected return on plan assets | (320) | (78) | (99) | (15) | (4) | (22) |
| Amortization: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Prior service costs |  |  |  |  |  | (1) |
| &nbsp;&nbsp;&nbsp;Regulatory asset |  |  |  |  |  | 4 |
| &nbsp;&nbsp;&nbsp;Net loss | 9 | 2 | 4 | 1 | 1 |  |
| Net periodic pension income | $(79) | $(22) | $(30) | $(4) | $— | $(1) |
| ***Postretirement Benefits*** | ***Postretirement Benefits*** | ***Postretirement Benefits*** | ***Postretirement Benefits*** | ***Postretirement Benefits*** | ***Postretirement Benefits*** | ***Postretirement Benefits*** |
| Service cost | $3 | $1 | $1 | $— | $— | $— |
| Interest cost | 17 | 4 | 6 | 1 |  | 2 |
| Expected return on plan assets | (23) | (9) | (8) |  |  | (2) |
| Amortization: |  |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Prior service costs | 1 |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Regulatory asset |  |  |  |  |  | 2 |
| &nbsp;&nbsp;&nbsp;Net gain | (3) |  |  | (1) |  | (2) |
| Net periodic postretirement benefit income | $(5) | $(4) | $(1) | $— | $— | $— |

---

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

(I) FAIR VALUE MEASUREMENTS

At March 31, 2026, assets and liabilities measured at fair value on a recurring basis during the period, together with their associated level of the fair value hierarchy, were as follows:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Fair Value Measurements Using** | **Fair Value Measurements Using** | **Fair Value Measurements Using** | **Fair Value Measurements Using** | |
|<br>**At March 31, 2026** | **Quoted Prices<br>in Active<br>Markets for<br>Identical<br>Assets<br>(Level 1)** | **Significant<br>Other<br>Observable<br>Inputs<br>(Level 2)** | **Significant<br>Unobservable<br>Inputs<br>(Level 3)** | **Net Asset<br>Value as a<br>Practical<br>Expedient<br>(NAV)** |<br>**Total** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Southern Company** |  |  |  |  |  |
| Assets: |  |  |  |  |  |
| &nbsp;&nbsp;Energy-related derivatives<sup>(a)</sup> | $2 | $76 | $— | $— | $78 |
| &nbsp;&nbsp;&nbsp;Interest rate derivatives |  | 7 |  |  | 7 |
| &nbsp;&nbsp;&nbsp;Foreign currency derivatives |  | 5 |  |  | 5 |
| &nbsp;&nbsp;Investments in trusts:<sup>(b)</sup> |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Domestic equity | 884 | 259 |  |  | 1143 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Foreign equity | 177 | 231 |  |  | 408 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;U.S. Treasury and government agency securities |  | 390 |  |  | 390 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Municipal bonds |  | 50 |  |  | 50 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pooled funds – fixed income |  | 4 |  |  | 4 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Corporate bonds |  | 529 |  |  | 529 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mortgage- and asset-backed securities |  | 108 |  |  | 108 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Private equity |  |  |  | 195 | 195 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents | 1 |  |  |  | 1 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | 63 | 3 |  | 9 | 75 |
| &nbsp;&nbsp;&nbsp;Investments, available-for-sale: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;U.S. Treasury and government agency securities | 2 | 12 |  |  | 14 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Municipal bonds |  | 1 |  |  | 1 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Corporate bonds |  | 3 |  |  | 3 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mortgage- and asset-backed securities |  | 4 |  |  | 4 |
| &nbsp;&nbsp;&nbsp;Cash equivalents | 486 | 15 |  |  | 501 |
| &nbsp;&nbsp;&nbsp;Other investments | 10 | 39 | 8 |  | 57 |
| &nbsp;&nbsp;&nbsp;Other |  |  | 10 |  | 10 |
| &nbsp;&nbsp;&nbsp;Total | $1625 | $1736 | $18 | $204 | $3583 |
| Liabilities: |  |  |  |  |  |
| &nbsp;&nbsp;Energy-related derivatives<sup>(a)</sup> | $9 | $151 | $— | $— | $160 |
| &nbsp;&nbsp;&nbsp;Interest rate derivatives |  | 191 |  |  | 191 |
| &nbsp;&nbsp;&nbsp;Foreign currency derivatives |  | 50 |  |  | 50 |
| &nbsp;&nbsp;&nbsp;Contingent consideration |  |  | 11 |  | 11 |
| &nbsp;&nbsp;&nbsp;Other |  | 13 | 11 |  | 24 |
| &nbsp;&nbsp;&nbsp;Total | $9 | $405 | $22 | $— | $436 |

---

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Fair Value Measurements Using** | **Fair Value Measurements Using** | **Fair Value Measurements Using** | **Fair Value Measurements Using** | |
|<br>**At March 31, 2026** | **Quoted Prices<br>in Active<br>Markets for<br>Identical<br>Assets<br>(Level 1)** | **Significant<br>Other<br>Observable<br>Inputs<br>(Level 2)** | **Significant<br>Unobservable<br>Inputs<br>(Level 3)** | **Net Asset<br>Value as a<br>Practical<br>Expedient<br>(NAV)** |<br>**Total** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Alabama Power** |  |  |  |  |  |
| Assets: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives | $— | $25 | $— | $— | $25 |
| &nbsp;&nbsp;Nuclear decommissioning trusts:<sup>(b)</sup> |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Domestic equity | 502 | 248 |  |  | 750 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Foreign equity | 177 |  |  |  | 177 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;U.S. Treasury and government agency securities |  | 15 |  |  | 15 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Municipal bonds |  | 1 |  |  | 1 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Corporate bonds |  | 317 |  |  | 317 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mortgage- and asset-backed securities |  | 30 |  |  | 30 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Private equity |  |  |  | 195 | 195 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | 13 | 1 |  | 9 | 23 |
| &nbsp;&nbsp;&nbsp;Cash equivalents | 9 | 15 |  |  | 24 |
| &nbsp;&nbsp;&nbsp;Other investments |  | 39 |  |  | 39 |
| &nbsp;&nbsp;&nbsp;Total | $701 | $691 | $— | $204 | $1596 |
| Liabilities: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives | $— | $48 | $— | $— | $48 |
| **Georgia Power** |  |  |  |  |  |
| Assets: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives | $— | $25 | $— | $— | $25 |
| &nbsp;&nbsp;Nuclear decommissioning trusts:<sup>(b)</sup> |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Domestic equity | 382 | 1 |  |  | 383 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Foreign equity |  | 229 |  |  | 229 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;U.S. Treasury and government agency securities |  | 375 |  |  | 375 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Municipal bonds |  | 49 |  |  | 49 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Corporate bonds |  | 212 |  |  | 212 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mortgage- and asset-backed securities |  | 78 |  |  | 78 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Other | 50 | 2 |  |  | 52 |
| &nbsp;&nbsp;&nbsp;Cash equivalents | 8 |  |  |  | 8 |
| &nbsp;&nbsp;&nbsp;Total | $440 | $971 | $— | $— | $1411 |
| Liabilities: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives | $— | $49 | $— | $— | $49 |
| **Mississippi Power** |  |  |  |  |  |
| Assets: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives | $— | $19 | $— | $— | $19 |
| Liabilities: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives | $— | $38 | $— | $— | $38 |

---

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Fair Value Measurements Using** | **Fair Value Measurements Using** | **Fair Value Measurements Using** | **Fair Value Measurements Using** | |
|<br>**At March 31, 2026** | **Quoted Prices<br>in Active<br>Markets for<br>Identical<br>Assets<br>(Level 1)** | **Significant<br>Other<br>Observable<br>Inputs<br>(Level 2)** | **Significant<br>Unobservable<br>Inputs<br>(Level 3)** | **Net Asset<br>Value as a<br>Practical<br>Expedient<br>(NAV)** |<br>**Total** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Southern Power** |  |  |  |  |  |
| Assets: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives | $— | $4 | $— | $— | $4 |
| &nbsp;&nbsp;&nbsp;Foreign currency derivatives |  | 5 |  |  | 5 |
| &nbsp;&nbsp;Other |  |  | 10 |  | 10 |
| &nbsp;&nbsp;&nbsp;Total | $— | $9 | $10 | $— | $19 |
| Liabilities: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives | $— | $3 | $— | $— | $3 |
| &nbsp;&nbsp;&nbsp;Contingent consideration |  |  | 11 |  | 11 |
| &nbsp;&nbsp;&nbsp;Other |  | 13 | 11 |  | 24 |
| &nbsp;&nbsp;&nbsp;Total | $— | $16 | $22 | $— | $38 |
| **Southern Company Gas** |  |  |  |  |  |
| Assets: |  |  |  |  |  |
| &nbsp;&nbsp;Energy-related derivatives<sup>(a)</sup> | $2 | $3 | $— | $— | $5 |
| &nbsp;&nbsp;&nbsp;Non-qualified deferred compensation trusts: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Domestic equity |  | 10 |  |  | 10 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Foreign equity |  | 2 |  |  | 2 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pooled funds – fixed income |  | 4 |  |  | 4 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cash and cash equivalents | 1 |  |  |  | 1 |
| &nbsp;&nbsp;&nbsp;Cash equivalents | 121 |  |  |  | 121 |
| &nbsp;&nbsp;&nbsp;Total | $124 | $19 | $— | $— | $143 |
| Liabilities: |  |  |  |  |  |
| &nbsp;&nbsp;Energy-related derivatives<sup>(a)</sup> | $9 | $13 | $— | $— | $22 |
| &nbsp;&nbsp;&nbsp;Interest rate derivatives |  | 55 |  |  | 55 |
| &nbsp;&nbsp;&nbsp;Total | $9 | $68 | $— | $— | $77 |

---

(a)Excludes cash collateral of $22 million.

(b)Excludes receivables related to investment income, pending investment sales, payables related to pending investment purchases, and currencies. See Note 6 to the financial statements under "Nuclear Decommissioning" in Item 8 of the Form 10-K for additional information.

Southern Company, Alabama Power, and Georgia Power continue to elect the option to fair value investment securities held in the nuclear decommissioning trust funds. The fair value of the funds, including reinvested interest and dividends and excluding the funds' expenses, increased (decreased) by the amounts shown in the table below for

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

the three months ended March 31, 2026 and 2025. The changes were recorded as a change to the regulatory assets and liabilities related to AROs for Georgia Power and Alabama Power, respectively.

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
|<br>**Fair value increases (decreases)** | **2026** | **2025** |
| | *(in millions)* | *(in millions)* |
| Southern Company | $**(44)** | $(6) |
| Alabama Power | **(30)** | (13) |
| Georgia Power | **(14)** | 7 |

---

**Valuation Methodologies**

The energy-related derivatives primarily consist of exchange-traded and over-the-counter financial products for natural gas and physical power products, including, from time to time, basis swaps. These are standard products used within the energy industry and are valued using the market approach. The inputs used are mainly from observable market sources, such as forward natural gas prices, power prices, implied volatility, and overnight index swap interest rates. Interest rate derivatives are also standard over-the-counter products that are valued using observable market data and assumptions commonly used by market participants. The fair value of interest rate derivatives reflects the net present value of expected payments and receipts under the swap agreement based on the market's expectation of future interest rates. Additional inputs to the net present value calculation may include the contract terms, counterparty credit risk, and occasionally, implied volatility of interest rate options. The fair value of cross-currency swaps reflects the net present value of expected payments and receipts under the swap agreement based on the market's expectation of future foreign currency exchange rates. Additional inputs to the net present value calculation may include the contract terms, counterparty credit risk, and discount rates. The interest rate derivatives and cross-currency swaps are categorized as Level 2 under Fair Value Measurements as these inputs are based on observable data and valuations of similar instruments. See Note (J) for additional information on how these derivatives are used.

For fair value measurements of the investments within the nuclear decommissioning trusts and the non-qualified deferred compensation trusts, external pricing vendors are designated for each asset class with each security specifically assigned a primary pricing source. For investments held within commingled funds, fair value is determined at the end of each business day through the net asset value, which is established by obtaining the underlying securities' individual prices from the primary pricing source. A market price secured from the primary source vendor is then evaluated by management in its valuation of the assets within the trusts. As a general approach, fixed income market pricing vendors gather market data (including indices and market research reports) and integrate relative credit information, observed market movements, and sector news into proprietary pricing models, pricing systems, and mathematical tools. Dealer quotes and other market information, including live trading levels and pricing analysts' judgments, are also obtained when available.

The NRC requires licensees of commissioned nuclear power reactors to establish a plan for providing reasonable assurance of funds for future decommissioning. See Note 6 to the financial statements under "Nuclear Decommissioning" in Item 8 of the Form 10-K for additional information.

Southern Company's investments, available for sale relate to a wholly-owned subsidiary that insures various risk exposures of Southern Company and its subsidiaries. Corporate and municipal bonds, government agency securities, and commercial paper are valued using pricing models maximizing the use of observable inputs for similar securities, including basing value on yields currently available on comparable securities of issues with similar credit ratings. Mortgage- and asset-backed securities are valued through an analysis of the underlying assets and a review of the documentation, including financials, the manager's valuation methodology in valuing their underlying assets, the types of assets and risks involved, and the investor's exit and termination parameters.

Southern Power has contingent payment obligations related to two of its acquisitions whereby it is primarily obligated to make generation-based payments to the seller, commencing at the commercial operation of each facility

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

and continuing through 2026 and 2036, respectively. The obligations are primarily categorized as Level 3 under Fair Value Measurements as the fair value is determined using significant unobservable inputs for the forecasted facility's generation in MW-hours, as well as other inputs such as a fixed dollar amount per MW-hour, and a discount rate. The fair value of the obligations reflects the net present value of expected payments and any periodic change arising from forecasted generation is expected to be immaterial.

Southern Power also has payment obligations through 2040 whereby it must reimburse the transmission owners for interconnection facilities and network upgrades constructed to support connection of a Southern Power generating facility to the transmission system. The obligations are categorized as Level 2 under Fair Value Measurements as the fair value is determined using observable inputs for the contracted amounts and reimbursement period, as well as a discount rate. The fair value of the obligations reflects the net present value of expected payments.

"Other investments" primarily includes investments traded in the open market that have maturities greater than 90 days, which are categorized as Level 2 under Fair Value Measurements and are comprised of corporate bonds, bank certificates of deposit, treasury bonds, and/or agency bonds.

At March 31, 2026, the fair value measurements of private market investments held in Alabama Power's nuclear decommissioning trusts that are calculated at net asset value per share (or its equivalent) as a practical expedient totaled $204 million and unfunded commitments related to the private market investments totaled $73 million. Private market investments include high-quality private equity funds across several market sectors, funds that invest in real estate assets, and a private credit fund. Private market funds do not have redemption rights. Distributions from these funds will be received as the underlying investments in the funds are liquidated.

At March 31, 2026, other financial instruments for which the carrying amount did not equal fair value were as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **Southern**<br>&nbsp;&nbsp;&nbsp;&nbsp;**Company**<sup>(\*)</sup> | **Alabama<br>Power** | **Georgia<br>Power** | **Mississippi<br>Power** | **Southern<br>Power** | **Southern**<br>**Company**<br>&nbsp;&nbsp;&nbsp;&nbsp;**Gas**<sup>(\*)</sup> |
|  | *(in billions)* | *(in billions)* | *(in billions)* | *(in billions)* | *(in billions)* | *(in billions)* |
| **Long-term debt, including securities due within one year:** | **Long-term debt, including securities due within one year:** | **Long-term debt, including securities due within one year:** | **Long-term debt, including securities due within one year:** |  |  |  |
| Carrying amount | $72.1 | $12.0 | $21.7 | $1.8 | $2.9 | $9.3 |
| Fair value | 66.5 | 10.7 | 20.2 | 1.7 | 2.8 | 8.3 |

---

(\*)The carrying amount of Southern Company Gas' long-term debt includes fair value adjustments from the effective date of the 2016 merger with Southern Company. Southern Company Gas amortizes the fair value adjustments over the remaining lives of the respective bonds, the latest being through 2043.

The fair values are determined using Level 2 measurements and are based on quoted market prices for the same or similar issues or on the current rates available to the Registrants.

(J) DERIVATIVES

The Registrants are exposed to market risks, including commodity price risk, interest rate risk, weather risk, and occasionally foreign currency exchange rate risk. To manage the volatility attributable to these exposures, each company nets its exposures, where possible, to take advantage of natural offsets and enters into various derivative transactions for the remaining exposures pursuant to each company's policies in areas such as counterparty exposure and risk management practices. Each company's policy is that derivatives are to be used primarily for hedging purposes and mandates strict adherence to all applicable risk management policies. Derivative positions are monitored using techniques including, but not limited to, market valuation, value at risk, stress testing, and sensitivity analysis. Derivative instruments are recognized at fair value in the balance sheets as either assets or liabilities and are presented on a net basis. See Note (I) for additional fair value information. In the statements of cash flows, any cash impacts of settled energy-related and interest rate derivatives are recorded as operating activities. Any cash impacts of settled foreign currency derivatives are classified as operating or financing activities to correspond with the classification of the hedged interest or principal, respectively. See Note 1 to the financial statements under "Financial Instruments" in Item 8 of the Form 10-K for additional information.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

**Energy-Related Derivatives**

The Subsidiary Registrants enter into energy-related derivatives to hedge exposures to electricity, natural gas, and other fuel price changes. However, due to cost-based rate regulations and other various cost recovery mechanisms, the traditional electric operating companies and the natural gas distribution utilities have limited exposure to market volatility in energy-related commodity prices. Each of the traditional electric operating companies and certain of the natural gas distribution utilities manage fuel-hedging programs, implemented per the guidelines of their respective state PSCs or other applicable state regulatory agencies, through the use of financial derivative contracts, which are expected to continue to mitigate price volatility. The traditional electric operating companies (with respect to wholesale generating capacity) and Southern Power have limited exposure to market volatility in energy-related commodity prices because their long-term sales contracts shift substantially all fuel cost responsibility to the purchaser. However, the traditional electric operating companies and Southern Power may be exposed to market volatility in energy-related commodity prices to the extent any uncontracted capacity is used to sell electricity. Southern Company Gas retains exposure to price changes that can, in a volatile energy market, be material and can adversely affect its results of operations.

Southern Company Gas also enters into weather derivative contracts as economic hedges in the event of warmer-than-normal weather. Exchange-traded options are carried at fair value, with changes reflected in natural gas revenues. Non-exchange-traded options are accounted for using the intrinsic value method. Changes in the intrinsic value for non-exchange-traded contracts are reflected in natural gas revenues.

Energy-related derivative contracts are accounted for under one of three methods:

• *Regulatory Hedges* – Energy-related derivative contracts designated as regulatory hedges relate primarily to the traditional electric operating companies' and the natural gas distribution utilities' fuel-hedging programs, where gains and losses are initially recorded as regulatory liabilities and assets, respectively, and then are included in fuel expense as the underlying fuel is used in operations and ultimately recovered through an approved cost recovery mechanism.

• *Cash Flow Hedges* – Gains and losses on energy-related derivatives designated as cash flow hedges (which are mainly used to hedge anticipated purchases and sales) are initially deferred in accumulated OCI before being recognized in the statements of income in the same period and in the same income statement line item as the earnings effect of the hedged transactions.

• *Not Designated* – Gains and losses on energy-related derivative contracts that are not designated or fail to qualify as hedges are recognized in the statements of income as incurred.

Some energy-related derivative contracts require physical delivery as opposed to financial settlement, and this type of derivative is both common and prevalent within the electric and natural gas industries. When an energy-related derivative contract is settled physically, any cumulative unrealized gain or loss is reversed and the contract price is recognized in the respective line item representing the actual price of the underlying goods being delivered.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

At March 31, 2026, the net volume of energy-related derivative contracts for natural gas positions, together with the longest hedge date over which the respective entity is hedging its exposure to the variability in future cash flows for forecasted transactions and the longest non-hedge date for derivatives not designated as hedges, were as follows:

---

| | | | |
|:---|:---|:---|:---|
| | **Net<br>Purchased<br>mmBtu** | **Longest<br>Hedge<br>Date** | **Longest<br>Non-Hedge<br>Date** |
| | *(in millions)* | | |
| Southern Company<sup>(\*)</sup> | 469 | 2030 | 2029 |
| Alabama Power | 145 | 2029 | 2026 |
| Georgia Power | 132 | 2028 | 2026 |
| Mississippi Power | 112 | 2030 | 2026 |
| Southern Power | 7 | 2030 | 2026 |
| Southern Company Gas<sup>(\*)</sup> | 73 | 2028 | 2029 |

---

(\*)Southern Company Gas' derivative instruments include both long and short natural gas positions. A long position is a contract to purchase natural gas and a short position is a contract to sell natural gas. Southern Company Gas' volume represents the net of 80 million mmBtu long natural gas positions and 7 million mmBtu short natural gas positions at March 31, 2026, which is also included in Southern Company's total volume.

In addition to the volumes discussed above, the traditional electric operating companies and Southern Power enter into physical natural gas supply contracts that provide the option to sell back excess natural gas due to operational constraints. The maximum expected volume of natural gas subject to such a feature is 13 million mmBtu for Southern Company, which includes 3 million mmBtu for Alabama Power, 5 million mmBtu for Georgia Power, 2 million mmBtu for Mississippi Power, and 3 million mmBtu for Southern Power.

For cash flow hedges of energy-related derivatives, the estimated pre-tax gains (losses) expected to be reclassified from accumulated OCI to earnings for the 12-month period ending March 31, 2027 are immaterial for Southern Company, Southern Power, and Southern Company Gas.

**Interest Rate Derivatives**

Southern Company and certain subsidiaries may enter into interest rate derivatives to hedge exposure to changes in interest rates. Derivatives related to existing variable rate securities or forecasted transactions are accounted for as cash flow hedges where the derivatives' fair value gains or losses are recorded in OCI and are reclassified into earnings at the same time and presented on the same income statement line item as the earnings effect of the hedged transactions. Derivatives related to existing fixed rate securities are accounted for as fair value hedges, where the derivatives' fair value gains or losses and hedged items' fair value gains or losses are both recorded directly to earnings on the same income statement line item. Fair value gains or losses on derivatives that are not designated or fail to qualify as hedges are recognized in the statements of income as incurred.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

At March 31, 2026, the following interest rate derivatives were outstanding:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Notional<br>Amount** | **Weighted<br>Average Interest<br>Rate Paid** | **Interest<br>Rate<br>Received** | **Hedge<br>Maturity<br>Date** | **Fair Value**<br>**Gain (Loss) at**<br>**March 31, 2026** |
| | *(in millions)* | | | | *(in millions)* |
| ***Fair Value Hedges of Existing Debt*** | ***Fair Value Hedges of Existing Debt*** |  |  |  |  |
| Southern Company parent | $400 | 1-day SOFR + 0.80% | 1.75% | March 2028 | $(20) |
| Southern Company parent | 1000 | 1-day SOFR + 2.48% | 3.70% | April 2030 | (103) |
| Southern Company parent | 565 | 1-day SOFR + 1.56% | 6.50% | March 2045 | (6) |
| Southern Company Gas | 500 | 1-day SOFR + 0.49% | 1.75% | January 2031 | (55) |
| Southern Company | $2465 |  |  |  | $(184) |

---

For cash flow hedges of interest rate derivatives, the estimated pre-tax gains (losses) expected to be reclassified from accumulated OCI to interest expense for the 12-month period ending March 31, 2027 are immaterial for Southern Company, the traditional electric operating companies, and Southern Company Gas. Deferred gains and losses related to interest rate derivatives are expected to be amortized into earnings through 2054 for Southern Company, Georgia Power, and Mississippi Power, 2052 for Alabama Power, and 2046 for Southern Company Gas.

**Foreign Currency Derivatives**

Southern Company and certain subsidiaries, including Southern Power, may enter into foreign currency derivatives to hedge exposure to changes in foreign currency exchange rates, such as that arising from the issuance of debt denominated in a currency other than U.S. dollars. Derivatives related to forecasted transactions are accounted for as cash flow hedges where the derivatives' fair value gains or losses are recorded in OCI and are reclassified into earnings at the same time and on the same income statement line as the earnings effect of the hedged transactions, including foreign currency gains or losses arising from changes in the U.S. currency exchange rates. Derivatives related to existing fixed rate securities are accounted for as fair value hedges, where the derivatives' fair value gains or losses and hedged items' fair value gains or losses are both recorded directly to earnings on the same income statement line item, including foreign currency gains or losses arising from changes in the U.S. currency exchange rates. Southern Company has elected to exclude the cross-currency basis spread from the assessment of effectiveness in the fair value hedges of its foreign currency risk and record any difference between the change in the fair value of the excluded components and the amounts recognized in earnings as a component of OCI.

At March 31, 2026, the following foreign currency derivatives were outstanding:

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Pay<br>Notional** | **Pay<br>Rate** | **Receive<br>Notional** | **Receive<br>Notional** | **Receive<br>Rate** | **Hedge<br>Maturity Date** | **Fair Value**<br>**Gain (Loss) at**<br>**March 31, 2026** |
| | *(in millions)* | | *(in millions)* | *(in millions)* | | | *(in millions)* |
| ***Cash Flow Hedges of Existing Debt*** | ***Cash Flow Hedges of Existing Debt*** |  |  |  |  |  |  |
| Southern Power | $564 | 3.78% | € | 500 | 1.85% | June 2026 | $5 |
| ***Fair Value Hedges of Existing Debt*** | ***Fair Value Hedges of Existing Debt*** |  |  |  |  |  |  |
| Southern Company parent | 1476 | 3.39% | 1250 | 1250 | 1.88% | September 2027 | (50) |
| Southern Company | $2040 |  | € | 1750 |  |  | $(45) |

---

For cash flow hedges of foreign currency derivatives, the estimated pre-tax gains expected to be reclassified from accumulated OCI to earnings for the 12-month period ending March 31, 2027 are immaterial for Southern Power.

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**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

**Derivative Financial Statement Presentation and Amounts**

The Registrants enter into derivative contracts that may contain certain provisions that permit intra-contract netting of derivative receivables and payables for routine billing and offsets related to events of default and settlements. Southern Company and certain subsidiaries also utilize master netting agreements to mitigate exposure to counterparty credit risk. The fair value amounts of derivative assets and liabilities on the balance sheets are presented net to the extent that there are netting arrangements or similar agreements with the counterparties.

The fair value of energy-related derivatives, interest rate derivatives, and foreign currency derivatives was reflected as either assets or liabilities in the balance sheets (included in "Other" or shown separately as "Risk Management Activities") as follows:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **At March 31, 2026** | **At March 31, 2026** | **At December 31, 2025** | **At December 31, 2025** |
|<br>**Derivative Category and Balance Sheet Location** | **Assets** | **Liabilities** | **Assets** | **Liabilities** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Southern Company** |  |  |  |  |
| **Energy-related derivatives designated as hedging instruments for regulatory purposes** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | $**35** | $**91** | $24 | $64 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-current | **34** | **56** | 31 | 35 |
| **Total derivatives designated as hedging instruments for regulatory purposes** | **69** | **147** | 55 | 99 |
| **Derivatives designated as hedging instruments in cash flow and fair value hedges** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | **2** | **8** | 1 | 6 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-current | **2** | **—** | 2 | 1 |
| &nbsp;&nbsp;&nbsp;Interest rate derivatives: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | **7** | **49** | 8 | 48 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-current | **—** | **142** |  | 139 |
| &nbsp;&nbsp;&nbsp;Foreign currency derivatives: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | **5** | **22** | 17 | 22 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-current | **—** | **28** | 4 |  |
| **Total derivatives designated as hedging instruments in cash flow and fair value hedges** | **16** | **249** | 32 | 216 |
| **Energy-related derivatives not designated as hedging instruments** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | **5** | **5** | 6 | 6 |
| **Gross amounts recognized** | **90** | **401** | 93 | 321 |
| **Gross amounts offset**<sup>(a)</sup> | **(53)** | **(75)** | (21) | (54) |
| **Net amounts recognized in the Balance Sheets**<sup>(b)</sup> | $**37** | $**326** | $72 | $267 |
| **Alabama Power** |  |  |  |  |
| **Energy-related derivatives designated as hedging instruments for regulatory purposes** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | $**12** | $**26** | $9 | $18 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-current | **13** | **22** | 10 | 13 |
| **Total derivatives designated as hedging instruments for regulatory purposes** | **25** | **48** | 19 | 31 |
| **Gross amounts offset** | **(23)** | **(23)** | (13) | (13) |
| **Net amounts recognized in the Balance Sheets** | $**2** | $**25** | $6 | $18 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **At March 31, 2026** | **At March 31, 2026** | **At December 31, 2025** | **At December 31, 2025** |
|<br>**Derivative Category and Balance Sheet Location** | **Assets** | **Liabilities** | **Assets** | **Liabilities** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Georgia Power** |  |  |  |  |
| **Energy-related derivatives designated as hedging instruments for regulatory purposes** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | $**13** | $**32** | $7 | $23 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-current | **9** | **17** | 10 | 10 |
| **Total derivatives designated as hedging instruments for regulatory purposes** | **22** | **49** | 17 | 33 |
| **Energy-related derivatives not designated as hedging instruments** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | **3** | **—** | 1 |  |
| **Gross amounts recognized** | **25** | **49** | 18 | 33 |
| **Gross amounts offset** | **(21)** | **(21)** | (14) | (14) |
| **Net amounts recognized in the Balance Sheets** | $**4** | $**28** | $4 | $19 |
| **Mississippi Power** |  |  |  |  |
| **Energy-related derivatives designated as hedging instruments for regulatory purposes** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | $**7** | $**21** | $3 | $15 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-current | **12** | **17** | 11 | 12 |
| **Total derivatives designated as hedging instruments for regulatory purposes** | **19** | **38** | 14 | 27 |
| **Gross amounts offset** | **(18)** | **(18)** | (13) | (13) |
| **Net amounts recognized in the Balance Sheets** | $**1** | $**20** | $1 | $14 |
| **Southern Power** |  |  |  |  |
| **Derivatives designated as hedging instruments in cash flow hedges** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | $**1** | $**2** | $1 | $1 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-current | **2** | **—** | 2 |  |
| &nbsp;&nbsp;&nbsp;Foreign currency derivatives: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | **5** | **—** | 17 |  |
| **Total derivatives designated as hedging instruments in cash flow hedges** | **8** | **2** | 20 | 1 |
| **Energy-related derivatives not designated as hedging instruments** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | **1** | **1** | 1 |  |
| **Gross amounts recognized** | **9** | **3** | 21 | 1 |
| **Gross amounts offset** | **(1)** | **(1)** |  |  |
| **Net amounts recognized in the Balance Sheets** | $**8** | $**2** | $21 | $1 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **At March 31, 2026** | **At March 31, 2026** | **At December 31, 2025** | **At December 31, 2025** |
|<br>**Derivative Category and Balance Sheet Location** | **Assets** | **Liabilities** | **Assets** | **Liabilities** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Southern Company Gas** |  |  |  |  |
| **Energy-related derivatives designated as hedging instruments for regulatory purposes** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | $**3** | $**12** | $5 | $8 |
| **Derivatives designated as hedging instruments in cash flow and fair value hedges** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Energy-related derivatives: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | **1** | **6** |  | 5 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-current | **—** | **—** |  | 1 |
| &nbsp;&nbsp;&nbsp;Interest rate derivatives: |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | **—** | **12** |  | 13 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Non-current | **—** | **43** |  | 46 |
| **Total derivatives designated as hedging instruments in cash flow and fair value hedges** | **1** | **61** |  | 65 |
| **Energy-related derivatives not designated as hedging instruments** |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Current | **1** | **4** | 4 | 6 |
| **Gross amounts recognized** | **5** | **77** | 9 | 79 |
| **Gross amounts offset**<sup>(a)</sup> | **10** | **(12)** | 19 | (14) |
| **Net amounts recognized in the Balance Sheets**<sup>(b)</sup> | $**15** | $**65** | $28 | $65 |

---

(a)Gross amounts offset includes cash collateral held on deposit in broker margin accounts of $22 million and $33 million at March 31, 2026 and December 31, 2025, respectively.

(b)Net amounts of derivative instruments outstanding exclude immaterial premium and intrinsic value associated with weather derivatives at March 31, 2026 and December 31, 2025.

At March 31, 2026 and December 31, 2025, the pre-tax effects of unrealized derivative gains (losses) arising from energy-related derivative instruments designated as regulatory hedging instruments and deferred were as follows:

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Regulatory Hedge Unrealized Gain (Loss) Recognized in the Balance Sheets** | **Regulatory Hedge Unrealized Gain (Loss) Recognized in the Balance Sheets** | **Regulatory Hedge Unrealized Gain (Loss) Recognized in the Balance Sheets** | **Regulatory Hedge Unrealized Gain (Loss) Recognized in the Balance Sheets** | **Regulatory Hedge Unrealized Gain (Loss) Recognized in the Balance Sheets** | **Regulatory Hedge Unrealized Gain (Loss) Recognized in the Balance Sheets** |
| **Derivative Category and Balance Sheet<br>Location** | **Southern<br>Company** | **Alabama<br>Power** | **Georgia<br>Power** | **Mississippi<br>Power** | **Southern Company Gas** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **At March 31, 2026:** |  |  |  |  |  |
| Energy-related derivatives: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Other regulatory assets, current | $**(60)** | $**(16)** | $**(20)** | $**(14)** | $**(10)** |
| &nbsp;&nbsp;&nbsp;Other regulatory assets, deferred | **(23)** | **(10)** | **(8)** | **(5)** | **—** |
| &nbsp;&nbsp;&nbsp;Other regulatory liabilities, current | **4** | **2** | **1** | **—** | **1** |
| &nbsp;&nbsp;&nbsp;Other regulatory liabilities, deferred | **1** | **1** | **—** | **—** | **—** |
| **Total energy-related derivative gains (losses)** | $**(78)** | $**(23)** | $**(27)** | $**(19)** | $**(9)** |
| **At December 31, 2025:** |  |  |  |  |  |
| Energy-related derivatives: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Other regulatory assets, current | $(48) | $(13) | $(17) | $(12) | $(6) |
| &nbsp;&nbsp;&nbsp;Other regulatory assets, deferred | (8) | (5) | (1) | (2) |  |
| &nbsp;&nbsp;&nbsp;Other regulatory liabilities, current | 7 | 4 | 1 |  | 2 |
| &nbsp;&nbsp;&nbsp;Other regulatory liabilities, deferred | 4 | 2 | 1 | 1 |  |
| **Total energy-related derivative gains (losses)** | $(45) | $(12) | $(16) | $(13) | $(4) |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

For the three months ended March 31, 2026 and 2025, the pre-tax effects of cash flow and fair value hedge accounting on accumulated OCI for the applicable Registrants were as follows:

---

| | | |
|:---|:---|:---|
| **Gain (Loss) From Derivatives Recognized in OCI** | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| **Gain (Loss) From Derivatives Recognized in OCI** | **2026** | **2025** |
| | *(in millions)* | *(in millions)* |
| **Southern Company** |  |  |
| &nbsp;&nbsp;Cash flow hedges: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Energy-related derivatives | $**10** | $19 |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest rate derivatives | **—** | (2) |
| &nbsp;&nbsp;&nbsp;&nbsp;Foreign currency derivatives | **(12)** | 19 |
| &nbsp;&nbsp;Fair value hedges<sup>(\*)</sup>: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Foreign currency derivatives | **(1)** | (16) |
| &nbsp;&nbsp;&nbsp;Total | $**(3)** | $20 |
| **Georgia Power** |  |  |
| &nbsp;&nbsp;Cash flow hedges: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Interest rate derivatives | $**—** | $(2) |
| **Southern Power** |  |  |
| &nbsp;&nbsp;&nbsp;Cash flow hedges: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Energy-related derivatives | $**2** | $3 |
| &nbsp;&nbsp;&nbsp;&nbsp;Foreign currency derivatives | **(12)** | 19 |
| &nbsp;&nbsp;&nbsp;Total | $**(10)** | $22 |
| **Southern Company Gas** |  |  |
| &nbsp;&nbsp;&nbsp;Cash flow hedges: |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Energy-related derivatives | $**8** | $16 |

---

(\*)Represents amounts excluded from the assessment of effectiveness for which the difference between changes in fair value and periodic amortization is recorded in OCI.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

For the three months ended March 31, 2026 and 2025, the pre-tax effects of cash flow and fair value hedge accounting on income were as follows:

---

| | | | |
|:---|:---|:---|:---|
| | | **Gain (Loss)** | **Gain (Loss)** |
| **Statements of Income Location** | **Derivative Category** | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| **Statements of Income Location** | **Derivative Category** | **2026** | **2025** |
| | | *(in millions)* | *(in millions)* |
| **Southern Company** |  |  |  |
| Fuel | Energy-related cash flow hedges | $**3** | $1 |
| Cost of natural gas | Energy-related cash flow hedges | **10** | (1) |
| Interest expense, net of amounts capitalized | Interest rate cash flow hedges | **(2)** | (2) |
|  | Foreign currency cash flow hedges | **(3)** | (3) |
|  | Interest rate fair value hedges | **20** | 40 |
| Other income (expense), net | Foreign currency cash flow hedges | **(13)** | 21 |
|  | Foreign currency fair value hedges | **(32)** | 40 |
|  | Amount excluded from effectiveness testing recognized in earnings | **1** | 16 |
| **Southern Power** |  |  |  |
| Fuel | Energy-related cash flow hedges | $**3** | $1 |
| Interest expense, net of amounts capitalized | Foreign currency cash flow hedges | **(3)** | (3) |
| Other income (expense), net | Foreign currency cash flow hedges | **(13)** | 21 |
| **Southern Company Gas** |  |  |  |
| Cost of natural gas | Energy-related cash flow hedges | $**10** | $(1) |
| Interest expense, net of amounts capitalized | Interest rate fair value hedges | **29** | 17 |

---

At March 31, 2026 and December 31, 2025, the following amounts were recorded on the balance sheets related to cumulative basis adjustments for fair value hedges:

---

| | | | | |
|:---|:---|:---|:---|:---|
| | **Carrying Amount of the Hedged<br>Item** | **Carrying Amount of the Hedged<br>Item** | **Cumulative Amount of Fair Value<br>Hedging Adjustment included in<br>Carrying Amount of the Hedged<br>Item** | **Cumulative Amount of Fair Value<br>Hedging Adjustment included in<br>Carrying Amount of the Hedged<br>Item** |
|<br>**Balance Sheet Location of Hedged Items** | **At March 31, 2026** | **At December 31, 2025** | **At March 31, 2026** | **At December 31, 2025** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Southern Company** |  |  |  |  |
| Long-term debt | $**(3710)** | $(3742) | $**158** | $156 |
| **Southern Company Gas** |  |  |  |  |
| Long-term debt | $**(446)** | $(446) | $**52** | $51 |

---

**Contingent Features**

The Registrants do not have any credit arrangements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade. There are certain derivatives that could require collateral, but not accelerated payment, in the event of various credit rating changes of certain Southern Company subsidiaries. Generally, collateral may be provided by a Southern Company guaranty, letter of credit, or cash. At March 31, 2026, the Registrants had no collateral posted with derivative counterparties to satisfy these arrangements.

For Southern Company, the fair value of foreign currency derivative liabilities and interest rate derivative liabilities with contingent features, and the maximum potential collateral requirements arising from the credit-risk-related contingent features at a rating below BBB- and/or Baa3, was $26 million at March 31, 2026. For Southern Power,

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

there were no foreign currency derivative liabilities with contingent features or associated collateral requirements arising from the credit-risk-related contingent features at a rating below BBB- and/or Baa3 at March 31, 2026. For the traditional electric operating companies and Southern Power, energy-related derivative liabilities with contingent features and the maximum potential collateral requirements arising from the credit-risk-related contingent features, at a rating below BBB- and/or Baa3, were immaterial at March 31, 2026. The maximum potential collateral requirements arising from the credit-risk-related contingent features for the traditional electric operating companies and Southern Power include certain agreements that could require collateral in the event that one or more Southern Company power pool participants has a credit rating change to below investment grade.

Alabama Power and Southern Power maintain accounts with certain regional transmission organizations to facilitate financial derivative transactions and they may be required to post collateral based on the value of the positions in these accounts and the associated margin requirements. At March 31, 2026, cash collateral posted in these accounts was immaterial for Alabama Power and Southern Power. Southern Company Gas maintains accounts with brokers or the clearing houses of certain exchanges to facilitate financial derivative transactions. Based on the value of the positions in these accounts and the associated margin requirements, Southern Company Gas may be required to deposit cash into these accounts, which are netted with energy-related derivatives recognized in the balance sheets.

The Registrants are exposed to losses related to financial instruments in the event of counterparties' nonperformance. The Registrants generally enter into agreements and material transactions with counterparties that have investment grade credit ratings by Moody's, S&P, or Fitch or with counterparties who have posted collateral to cover potential credit exposure. The Registrants have also established risk management policies and controls to determine and monitor the creditworthiness of counterparties in order to mitigate their exposure to counterparty credit risk.

Southern Company Gas uses established credit policies to determine and monitor the creditworthiness of counterparties, including requirements to post collateral or other credit security, as well as the quality of pledged collateral. Collateral or credit security is most often in the form of cash or letters of credit from an investment-grade financial institution, but may also include cash or U.S. government securities held by a trustee. Prior to entering a physical transaction, Southern Company Gas assigns its counterparties an internal credit rating and credit limit based on the counterparties' Moody's, S&P, and Fitch ratings, commercially available credit reports, and audited financial statements. Southern Company Gas may require counterparties to pledge additional collateral when deemed necessary.

The Registrants do not anticipate a material adverse effect on their respective financial statements as a result of counterparty nonperformance.

(K) ACQUISITIONS AND DISPOSITIONS

See Note 15 to the financial statements in Item 8 of the Form 10-K for additional information.

**Southern Power**

***Construction Projects***

During the three months ended March 31, 2026, Southern Power completed construction of and placed in service the 200-MW first phase and continued construction of the 180-MW second phase and 132-MW third phase of the Millers Branch solar facility. At March 31, 2026, the total cost of construction incurred for the Millers Branch

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

project was $692 million, of which $387 million remains in CWIP. The ultimate outcome of these matters cannot be determined at this time.

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Project<br>Facility** | **Resource** | **Approximate**<br>**Nameplate Capacity**<br>**(*MW*)** | **Location** | **Actual/Projected<br>COD** | **PPA<br>Contract<br>Period** |
| **Projects Under Construction at March 31, 2026** | **Projects Under Construction at March 31, 2026** | **Projects Under Construction at March 31, 2026** | **Projects Under Construction at March 31, 2026** | **Projects Under Construction at March 31, 2026** | **Projects Under Construction at March 31, 2026** |
| Millers Branch |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Phase II | Solar | 180 | Haskell County, TX | Second quarter 2026 | 15 years |
| &nbsp;&nbsp;&nbsp;&nbsp;Phase III | Solar | 132 | Haskell County, TX | Fourth quarter 2026 | 15 years |
| **Projects Completed During the Three Months Ended March 31, 2026** | **Projects Completed During the Three Months Ended March 31, 2026** | **Projects Completed During the Three Months Ended March 31, 2026** | **Projects Completed During the Three Months Ended March 31, 2026** | **Projects Completed During the Three Months Ended March 31, 2026** | **Projects Completed During the Three Months Ended March 31, 2026** |
| Millers Branch |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;&nbsp;Phase I | Solar | 200 | Haskell County, TX | February 2026 | 20 years |

---

***Wind Repowering Projects***

During the three months ended March 31, 2026, Southern Power continued the development projects to repower the Kay, Grant, Grant Plains, Wake, and Bethel wind facilities. At March 31, 2026, the total cost of construction incurred related to the projects was $432 million, which is primarily included in CWIP. The repowered output of the facilities is contracted under new and amended PPAs. The ultimate outcome of these matters cannot be determined at this time.

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Project Facility** | **Resource** | **Approximate Nameplate**<br>**Capacity**<br>**(*MW*)** | **Location** | **Projected**<br>**Completion Date** |
| **Projects Under Construction at March 31, 2026** | **Projects Under Construction at March 31, 2026** | **Projects Under Construction at March 31, 2026** | **Projects Under Construction at March 31, 2026** | **Projects Under Construction at March 31, 2026** |
| Kay<sup>(\*)</sup> | Wind | 200 | Kay County, OK | Third quarter 2026 |
| Grant | Wind | 152 | Grant County, OK | Fourth quarter 2026 |
| Grant Plains | Wind | 147 | Grant County, OK | Fourth quarter 2026 |
| Wake | Wind | 257 | Crosby & Floyd Counties, TX | Second quarter 2027 |
| Bethel | Wind | 276 | Castro County, TX | Third quarter 2027 |

---

(\*)The facility has a total capacity of 299 MWs, of which 200 MWs is projected to be repowered and is contracted under a PPA. During the first quarter 2026 and subsequent to March 31, 2026, Southern Power placed 51 MWs of repowered capacity in service.

***Natural Gas Turbine Upgrade Projects***

During the three months ended March 31, 2026, Southern Power committed to projects to upgrade certain turbines at its existing Franklin and Wansley natural gas facilities, located in Lee County, Alabama and Heard County, Georgia, respectively. The upgrades are projected to add up to 400 MWs of incremental capacity, with commercial operations projected to begin between the second quarter 2029 and the first quarter 2031. At March 31, 2026, the total cost of construction incurred related to the projects was immaterial. The ultimate outcome of these matters cannot be determined at this time.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

(L) SEGMENT AND RELATED INFORMATION

See Note 16 to the financial statements in Item 8 of the Form 10-K for additional information.

**Southern Company**

The primary businesses of the Southern Company system are electricity sales by the traditional electric operating companies and Southern Power and the distribution of natural gas by Southern Company Gas. The traditional electric operating companies are vertically integrated utilities providing electric service in three Southeastern states. Southern Power develops, constructs, acquires, owns, operates, and manages power generation assets, including battery energy storage projects, and sells electricity at market-based rates in the wholesale market. Southern Company Gas distributes natural gas through its natural gas distribution utilities and is involved in several other complementary businesses including gas pipeline investments and gas marketing services.

Southern Company's reportable business segments are the sale of electricity by the traditional electric operating companies, the sale of electricity in the competitive wholesale market by Southern Power, and the distribution of natural gas and other complementary products and services by Southern Company Gas. While the traditional electric operating companies represent three separate operating segments, they are vertically integrated utilities providing electric service to retail customers, as well as wholesale customers, in the Southeast and have been aggregated into one reportable segment. The "All Other" presentation includes the Southern Company parent entity, which does not allocate operating expenses to business segments, and operating segments below the quantitative threshold for separate disclosure. These operating segments include providing distributed energy and resilience solutions and deploying microgrids for commercial, industrial, governmental, and utility customers, as well as investments in telecommunications. Revenues from sales by Southern Power to the traditional electric operating companies were $100 million and $116 million for the three months ended March 31, 2026 and 2025, respectively. All other inter-segment revenues were immaterial for both periods presented.

Southern Company's CODM utilizes segment net income, including variances to budget and forecasts, to assess performance and is not provided with segment expense information. To achieve the consolidated net income goal, Southern Company's CODM sets net income expectations for each operating segment, which is expected to monitor its expenses in order to achieve its assigned net income target. Therefore, Southern Company has no reportable significant segment expenses.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

Financial data for business segments for the three months ended March 31, 2026 and 2025 was as follows:

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Electric Utilities** | **Electric Utilities** | **Electric Utilities** | **Electric Utilities** | | | | | |
| | **Traditional<br>Electric Operating<br>Companies** | **Southern<br>Power** | **Eliminations** | **Total** |<br>**Southern Company Gas** |<br>**Total Reportable Segments** |<br>**All<br>Other** |<br>**Eliminations** |<br>**Consolidated** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** |  |  |  |  |  |  |
| Operating revenues | $**5482** | $**681** | $**(141)** | $**6022** | $**2191** | $**8213** | $**218** | $**(34)** | $**8397** |
| Other segment items<sup>(a)</sup> | **2857** | **442** | **(141)** | **3158** | **1357** | **4515** | **190** | **(40)** | **4665** |
| Depreciation and amortization<sup>(b)</sup> | **942** | **278** | **—** | **1220** | **183** | **1403** | **17** | **—** | **1420** |
| Earnings from equity method investments | **(1)** | **—** | **—** | **(1)** | **46** | **45** | **5** | **—** | **50** |
| Interest expense<sup>(c)</sup> | **339** | **27** | **—** | **366** | **105** | **471** | **307** | **—** | **778** |
| Income taxes (benefit) | **230** | **(70)** | **—** | **160** | **145** | **305** | **(77)** | **—** | **228** |
| Segment net income (loss)<sup>(b)(c)(d)</sup> | $**1113** | $**4** | $**—** | $**1117** | $**447** | $**1564** | $**(214)** | $**6** | $**1356** |
| **At March 31, 2026** |  |  |  |  |  |  |  |  |  |
| Goodwill | $**—** | $**2** | $**—** | $**2** | $**5015** | $**5017** | $**144** | $**—** | $**5161** |
| Total assets | **115965** | **12474** | **(849)** | **127590** | **27551** | **155141** | **2684** | **(794)** | **157031** |
| **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** |  |  |  |  |  |  |
| Operating revenues | $5311 | $567 | $(123) | $5755 | $1839 | $7594 | $229 | $(48) | $7775 |
| Other segment items<sup>(a)</sup> | 2794 | 303 | (123) | 2974 | 1069 | 4043 | 208 | (58) | 4193 |
| Depreciation and amortization<sup>(b)</sup> | 947 | 152 |  | 1099 | 169 | 1268 | 18 |  | 1286 |
| Earnings from equity method investments | (2) |  |  | (2) | 39 | 37 | (4) | (1) | 32 |
| Interest expense | 316 | 26 |  | 342 | 92 | 434 | 280 |  | 714 |
| Income taxes (benefit) | 226 | (1) |  | 225 | 130 | 355 | (75) |  | 280 |
| Segment net income (loss)<sup>(b)(d)</sup> | $1026 | $87 | $— | $1113 | $418 | $1531 | $(206) | $9 | $1334 |
| **At December 31, 2025** |  |  |  |  |  |  |  |  |  |
| Goodwill | $— | $2 | $— | $2 | $5015 | $5017 | $144 | $— | $5161 |
| Total assets | 114287 | 12657 | (915) | 126029 | 27387 | 153416 | 2829 | (525) | 155720 |

---

(a)Primarily consists of fuel, purchased power, cost of natural gas, cost of other sales, other operations and maintenance, taxes other than income taxes, AFUDC equity, non-service cost-related retirement benefits income, and net income (loss) attributable to noncontrolling interests.

(b)For Southern Power, includes accelerated depreciation related to the repowering of multiple wind facilities of $154 million ($120 million after tax) and $27 million ($20 million after tax, net of noncontrolling interest impacts) for the three months ended March 31, 2026 and 2025, respectively. See Note (K) under "Southern Power – Wind Repowering Projects" and Notes 5 and 15 to the financial statements under "Depreciation and Amortization – Southern Power" and "Southern Power – Wind Repowering Projects," respectively, in Item 8 of the Form 10-K for additional information.

(c)For All Other, includes a pre-tax loss of $11 million ($8 million after tax) associated with the extinguishment of debt at the parent company.

(d)Attributable to Southern Company.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

**Traditional Electric Operating Companies**

Each of the traditional electric operating companies' single reportable business segment is the sale of electricity.

Alabama Power and Georgia Power have identified utility operations and maintenance expenses as significant segment expenses provided to their CODMs. Utility operations and maintenance expenses is calculated as other operations and maintenance, as reflected on the statements of income, less expenses from unregulated products and services, losses (gains) on asset dispositions, impairment charges, and amortization of cloud software. Alabama Power's utility operations and maintenance expenses are disaggregated into expenses related to Rate RSE and Rate CNP Compliance. See Note 2 to the financial statements under "Alabama Power" in Item 8 of the Form 10-K for additional information.

During the third and fourth quarters of 2025, Mississippi Power updated the information provided to its CODM. As a result, Mississippi Power identified certain operational and environmental compliance expenses as significant segment expenses and has recast prior period information to conform to the current period presentation.

Financial data for significant segment expenses and other segment information for the three months ended March 31, 2026 and 2025 was as follows:

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2026** | **2025** |
| | *(in millions)* | *(in millions)* |
| **Alabama Power** |  |  |
| Operating revenues | $**2092** | $2012 |
| Utility operations and maintenance |  |  |
| &nbsp;&nbsp;Rate RSE expenses | **301** | 365 |
| &nbsp;&nbsp;Rate CNP Compliance expenses | **74** | 75 |
| Total utility operations and maintenance | **375** | 440 |
| Other segment items<sup>(a)</sup> | **667** | 608 |
| Depreciation and amortization | **381** | 370 |
| Interest expense | **115** | 108 |
| Income taxes | **129** | 111 |
| Segment net income | $**425** | $375 |
| Capital expenditures | $**519** | $560 |
| **Georgia Power** |  |  |
| Operating revenues | $**3142** | $3037 |
| Utility operations and maintenance | **578** | 536 |
| Other segment items<sup>(a)</sup> | **1163** | 1117 |
| Depreciation and amortization | **484** | 503 |
| Interest expense | **204** | 187 |
| Income taxes | **85** | 98 |
| Segment net income | $**628** | $596 |
| Capital expenditures | $**2070** | $1637 |

---

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2026** | **2025** |
| | *(in millions)* | *(in millions)* |
| **Mississippi Power** |  |  |
| Operating revenues | $**472** | $420 |
| Operational expenses<sup>(b)</sup> | **64** | 57 |
| Environmental compliance expenses<sup>(c)</sup> | **4** | 2 |
| Other segment items<sup>(a)</sup> | **251** | 218 |
| Depreciation and amortization | **55** | 52 |
| Interest expense | **20** | 20 |
| Income taxes | **18** | 16 |
| Segment net income | $**60** | $55 |
| Capital expenditures | $**82** | $73 |

---

(a)Primarily consists of fuel, purchased power, expenses from unregulated products and services, losses (gains) on asset dispositions, amortization of cloud software, taxes other than income taxes, AFUDC equity, and non-service cost-related retirement benefits income. For Mississippi Power, includes employee benefit expenses. Also includes earnings from equity method investments, which were immaterial for all periods presented.

(b)Consists of certain operations and maintenance expenses related to PEP and the MRA tariff, including labor costs, materials, contract services, and other normal operational costs. See Note (B) under "Mississippi Power" and Note 2 to the financial statements under "Mississippi Power" in Item 8 of the Form 10-K for additional information regarding PEP and the MRA tariff.

(c)Consists of environmental compliance expenses related to ECO Plan and the MRA tariff. See Note (B) under "Mississippi Power" and Note 2 to the financial statements under "Mississippi Power" in Item 8 of the Form 10-K for additional information regarding ECO Plan and the MRA tariff.

**Southern Power**

Southern Power's single reportable business segment is the sale of electricity in the competitive wholesale market. Southern Power's CODM utilizes segment expense information in the form of variances to budget to assess performance; therefore, Southern Power has no reportable significant segment expenses.

Financial data for segment information for the three months ended March 31, 2026 and 2025 was as follows:

---

| | | |
|:---|:---|:---|
| | **Three Months Ended March 31,** | **Three Months Ended March 31,** |
| | **2026** | **2025** |
| | *(in millions)* | *(in millions)* |
| Operating revenues | $**681** | $567 |
| Other segment items<sup>(a)</sup> | **442** | 303 |
| Depreciation and amortization<sup>(b)</sup> | **278** | 152 |
| Interest expense | **27** | 26 |
| Income taxes (benefit) | **(70)** | (1) |
| Segment net income<sup>(b)(c)</sup> | $**4** | $87 |

---

(a)Primarily consists of fuel, purchased power, other operations and maintenance, taxes other than income taxes, and net income (loss) attributable to noncontrolling interests.

(b)For the three months ended March 31, 2026 and 2025, includes accelerated depreciation of $154 million ($120 million after tax) and $27 million ($20 million after tax, net of noncontrolling interest impacts), respectively, related to the repowering of the multiple wind facilities. See Note (K) under "Southern Power – Wind Repowering Projects" and Notes 5 and 15 to the financial statements under "Depreciation and Amortization – Southern Power" and "Southern Power – Wind Repowering Projects," respectively, in Item 8 of the Form 10-K for additional information.

(c)Southern Power had no earnings from equity method investments for any period presented.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**NOTES TO THE CONDENSED FINANCIAL STATEMENTS (Continued)**

**(UNAUDITED)**

**Southern Company Gas**

Southern Company Gas manages its business through three reportable segments – gas distribution operations, gas pipeline investments, and gas marketing services. The non-reportable segments are combined and presented as "All Other."

The gas distribution operations segment is the largest component of Southern Company Gas' business and includes natural gas local distribution utilities that construct, manage, and maintain intrastate natural gas pipelines and gas distribution facilities in four states.

The gas pipeline investments segment consists of joint ventures in natural gas pipeline investments including a 50% interest in SNG and a 50% joint ownership interest in the Dalton Pipeline. These natural gas pipelines enable the provision of diverse sources of natural gas supplies to the customers of Southern Company Gas. See Note 7 to the financial statements under "Southern Company Gas" in Item 8 of the Form 10-K for additional information.

The gas marketing services segment provides natural gas marketing to end-use customers primarily in Georgia through SouthStar.

The "All Other" presentation includes operating segments and subsidiaries that fall below the quantitative threshold for separate disclosure.

Southern Company Gas' CODM utilizes segment expense information in the form of variances to budget to assess performance; therefore, Southern Company Gas has no reportable significant segment expenses.

Financial data for business segments for the three months ended March 31, 2026 and 2025 was as follows:

---

| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | **Gas Distribution Operations** | **Gas<br>Pipeline Investments** | **Gas Marketing Services** | **Total Reportable Segments** | **All**<br>**Other** | **Eliminations** | **Consolidated** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** |  |  |  |  |  |
| Operating revenues | $**1900** | $**8** | $**285** | $**2193** | $**2** | $**(4)** | $**2191** |
| Other segment items<sup>(\*)</sup> | **1177** | **—** | **183** | **1360** | **1** | **(4)** | **1357** |
| Depreciation and amortization | **179** | **1** | **2** | **182** | **1** | **—** | **183** |
| Earnings from equity method investments | **—** | **46** | **—** | **46** | **—** | **—** | **46** |
| Interest expense | **91** | **9** | **1** | **101** | **4** | **—** | **105** |
| Income taxes (benefit) | **116** | **11** | **28** | **155** | **(10)** | **—** | **145** |
| Segment net income | $**337** | $**33** | $**71** | $**441** | $**6** | $**—** | $**447** |
| **Total assets at March 31, 2026** | $**26111** | $**1517** | $**1768** | $**29396** | $**11276** | $**(13121)** | $**27551** |
| **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** |  |  |  |  |  |  |
| Operating revenues | $1570 | $8 | $261 | $1839 | $4 | $(4) | $1839 |
| Other segment items<sup>(\*)</sup> | 905 | 1 | 166 | 1072 | 1 | (4) | 1069 |
| Depreciation and amortization | 164 | 1 | 3 | 168 | 1 |  | 169 |
| Earnings from equity method investments |  | 39 |  | 39 |  |  | 39 |
| Interest expense | 82 | 9 | 1 | 92 |  |  | 92 |
| Income taxes (benefit) | 104 | 9 | 26 | 139 | (9) |  | 130 |
| Segment net income | $315 | $27 | $65 | $407 | $11 | $— | $418 |
| **Total assets at December 31, 2025** | $25391 | $1475 | $1749 | $28615 | $10643 | $(11871) | $27387 |

---

(\*)Primarily consists of cost of natural gas, other operations and maintenance, taxes other than income taxes, AFUDC equity, and non-service cost-related retirement benefits income.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations.**

---

| | |
|:---|:---|
| | **<u>Page</u>** |
| Combined Management's Discussion and Analysis of Financial Condition and Results of Operations |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Overview](#i505af990baee483db750d4302bd03c67_268)</u> | <u>[84](#i505af990baee483db750d4302bd03c67_268)</u> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Results of Operations](#i505af990baee483db750d4302bd03c67_289)</u> | <u>[85](#i505af990baee483db750d4302bd03c67_289)</u> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Southern Company](#i505af990baee483db750d4302bd03c67_292)</u> | <u>[85](#i505af990baee483db750d4302bd03c67_292)</u> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Alabama Power](#i505af990baee483db750d4302bd03c67_295)</u> | <u>[91](#i505af990baee483db750d4302bd03c67_295)</u> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Georgia Power](#i505af990baee483db750d4302bd03c67_298)</u> | <u>[94](#i505af990baee483db750d4302bd03c67_298)</u> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Mississippi Power](#i505af990baee483db750d4302bd03c67_310)</u> | <u>[97](#i505af990baee483db750d4302bd03c67_310)</u> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Southern Power](#i505af990baee483db750d4302bd03c67_316)</u> | <u>[100](#i505af990baee483db750d4302bd03c67_316)</u> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Southern Company Gas](#i505af990baee483db750d4302bd03c67_328)</u> | <u>[104](#i505af990baee483db750d4302bd03c67_328)</u> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Future Earnings Potential](#i505af990baee483db750d4302bd03c67_331)</u> | <u>[108](#i505af990baee483db750d4302bd03c67_331)</u> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Accounting Policies](#i505af990baee483db750d4302bd03c67_352)</u> | <u>[112](#i505af990baee483db750d4302bd03c67_352)</u> |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Financial Condition and Liquidity](#i505af990baee483db750d4302bd03c67_355)</u> | <u>[112](#i505af990baee483db750d4302bd03c67_355)</u> |

---

The following Management's Discussion and Analysis of Financial Condition and Results of Operations is a combined presentation; however, information contained herein relating to any individual Registrant is filed by such Registrant on its own behalf and each Registrant makes no representation as to information related to the other Registrants.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS**

**OVERVIEW**

Southern Company is a holding company that owns all of the common stock of three traditional electric operating companies (Alabama Power, Georgia Power, and Mississippi Power), Southern Power, and Southern Company Gas and owns other direct and indirect subsidiaries. The primary businesses of the Southern Company system are electricity sales by the traditional electric operating companies and Southern Power and the distribution of natural gas by Southern Company Gas. Southern Company's reportable segments are the sale of electricity by the traditional electric operating companies, the sale of electricity in the competitive wholesale market by Southern Power, and the distribution of natural gas and sale of other complementary products and services by Southern Company Gas. Alabama Power, Georgia Power, and Mississippi Power each operate with one reportable business segment, since substantially all of their business is providing electric service to customers. Southern Power also operates its business with one reportable business segment, the sale of electricity in the competitive wholesale market. Southern Company Gas' reportable segments are gas distribution operations, gas pipeline investments, and gas marketing services. See Note (L) to the Condensed Financial Statements herein for additional information on segment reporting. For additional information on the Registrants' primary business activities, see BUSINESS – "The Southern Company System" in Item 1 of the Form 10-K.

The Registrants continue to focus on several key performance indicators. For the traditional electric operating companies and Southern Company Gas, these indicators include, but are not limited to, customer satisfaction, plant availability, electric and natural gas system reliability, and execution of major construction projects. Southern Company Gas also continues to focus on several operating metrics, including customer count and volumes of natural gas sold. For Southern Power, key performance indicators include, but are not limited to, the equivalent forced outage rate and contract availability to evaluate operating results and help ensure its ability to meet its contractual commitments to customers. In addition, Southern Company and the Subsidiary Registrants focus on earnings per share and net income, respectively, as a key performance indicator.

**Recent Developments**

***Alabama Power***

In December 2025, the Alabama PSC issued a consent order to keep retail rates stable through 2027. On April 2, 2026, the State of Alabama enacted legislation providing that retail base rates established and in place on October 1, 2026 may not be increased before January 1, 2029 for utilities that are regulated by the Alabama PSC and that provide retail electric service. The ultimate outcome of this matter cannot be determined at this time. See Note 2 to the financial statements under "Alabama Power" in Item 8 of the Form 10-K for additional information.

***Southern Power***

During the three months ended March 31, 2026, Southern Power committed to development projects to upgrade certain turbines at its existing Franklin and Wansley natural gas facilities, which are projected to add up to 400 MWs of incremental capacity. Commercial operations for the incremental capacity at the natural gas facilities are projected to occur between the second quarter 2029 and the first quarter 2031. The ultimate outcome of these matters cannot be determined at this time. In addition, in the first quarter 2026 and subsequent to March 31, 2026, Southern Power placed in service 51 MWs of the 200-MW repowering project at the Kay wind facility. See Note (K) to the Condensed Financial Statements under "Southern Power" herein for additional information.

At March 31, 2026, Southern Power's average investment coverage ratio for its generating assets, including those owned with various partners, based on the ratio of investment under contract to total investment using the respective facilities' net book value (or expected in-service value for facilities under construction) as the investment amount was 97% through 2030 and 88% through 2035, with an average remaining contract duration of approximately 12 years.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

**RESULTS OF OPERATIONS**

**Southern Company**

***Net Income***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $22 | 1.6 |

---

Consolidated net income attributable to Southern Company in the first quarter 2026 was $1.36 billion ($1.21 per share) compared to $1.33 billion ($1.21 per share) for the corresponding period in 2025. The increase was primarily due to increases in retail electric revenues associated with sales growth, higher natural gas revenues associated with base rate increases, higher non-fuel-related wholesale electric revenues, and an increase in AFUDC equity, partially offset by an increase in depreciation and amortization, decreases in retail electrics revenues associated with weather impacts, and an increase in interest expense.

***Retail Electric Revenues***

In the first quarter 2026, retail electric revenues were $4.64 billion compared to $4.60 billion for the corresponding period in 2025. Details of the changes in retail electric revenues were as follows:

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs.<br> First Quarter 2025 | First Quarter 2026 vs.<br> First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Rates and pricing | $(21) | (0.5)% |
| Sales growth | 81 | 1.8 |
| Weather | (69) | (1.5) |
| Fuel and other cost recovery | 48 | 1.0 |
| Retail electric revenues | $39 | 0.8% |

---

Changes in rates and pricing resulted in a decrease in revenues in the first quarter 2026 when compared to the corresponding period in 2025 primarily due to lower contributions from commercial and industrial customers with variable demand-driven pricing at Georgia Power, partially offset by increases in PEP rates at Mississippi Power. See Note 2 to the financial statements under "Mississippi Power – Performance Evaluation Plan" in Item 8 of the Form 10-K for additional information.

Changes in sales resulted in an increase in revenues in the first quarter 2026 when compared to the corresponding period in 2025. Weather-adjusted residential KWH sales increased 0.9% in the first quarter 2026 primarily due to customer growth. Weather-adjusted commercial KWH sales increased 4.6% in the first quarter 2026 primarily due to increased customer usage, largely driven by data centers at Georgia Power. Industrial KWH sales increased 1.5% in the first quarter 2026 primarily due to increases in the primary metals, pipeline, and stone, clay, and glass sectors, partially offset by decreases in the paper and chemicals sectors.

Fuel and other cost recovery revenues increased $48 million in the first quarter 2026 compared to the corresponding period in 2025 primarily due to higher recoverable fuel costs. Electric rates for the traditional electric operating companies include provisions to adjust billings for fluctuations in fuel costs, including the energy component of purchased power costs. Under these provisions, fuel revenues generally equal fuel expenses, including the energy component of PPA costs, and do not affect net income. The traditional electric operating companies each have one or more regulatory mechanisms to recover other costs such as environmental and other compliance costs, storm damage, new plants, and PPA capacity costs. See Note 2 to the financial statements in Item 8 of the Form 10-K and Note (B) to the Condensed Financial Statements herein for additional information.

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Wholesale Electric Revenues***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $221 | 29.7 |

---

In the first quarter 2026, wholesale electric revenues were $965 million compared to $744 million for the corresponding period in 2025. The increase was primarily due to an increase in energy revenues associated with a $145 million increase related to the average cost per KWH sold primarily resulting from higher fuel and purchased power prices and a $76 million increase related to the volume of KWHs sold resulting from higher demand.

Wholesale electric revenues consist of revenues from PPAs and short-term opportunity sales. Wholesale electric revenues from PPAs (other than solar and wind PPAs) have both capacity and energy components. Capacity revenues generally represent the greatest contribution to net income and are designed to provide recovery of fixed costs plus a return on investment. Energy revenues will vary depending on fuel prices, the market prices of wholesale energy compared to the Southern Company system's generation, demand for energy within the Southern Company system's electric service territory, and the availability of the Southern Company system's generation. Increases and decreases in energy revenues that are driven by fuel prices are accompanied by an increase or decrease in fuel costs and do not have a significant impact on net income. Energy sales from solar and wind PPAs do not have a capacity charge and customers either purchase the energy output of a dedicated renewable facility through an energy charge or through a fixed price related to the energy. As a result, the ability to recover fixed and variable operations and maintenance expenses is dependent upon the level of energy generated from these facilities, which can be impacted by weather conditions, equipment performance, transmission constraints, and other factors. Wholesale electric revenues at Mississippi Power include FERC-regulated municipal and rural association sales under cost-based tariffs as well as market-based sales. Short-term opportunity sales are made at market-based rates that generally provide a margin above the Southern Company system's variable cost to produce the energy.

***Other Electric Revenues***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $23 | 9.5 |

---

In the first quarter 2026, other electric revenues were $265 million compared to $242 million for the corresponding period in 2025. The increase was primarily due to increases of $15 million in open access transmission tariff sales at the traditional electric operating companies and $8 million in realized gains associated with price stability products for retail customers on variable demand-driven pricing tariffs at Georgia Power.

***Natural Gas Revenues***

In the first quarter 2026, natural gas revenues were $2.2 billion compared to $1.8 billion for the corresponding period in 2025. Details of the changes in natural gas revenues were as follows:

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs. <br>First Quarter 2025 | First Quarter 2026 vs. <br>First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Rates | $76 | 4.1% |
| Gas costs and other cost recovery | 245 | 13.3 |
| Gas marketing services | 32 | 1.8 |
| Other | (1) | (0.1) |
| Natural gas revenues | $352 | 19.1% |

---

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

Changes in rates resulted in an increase in revenues in the first quarter 2026 compared to the corresponding period in 2025 primarily due to base rate increases at Nicor Gas and Atlanta Gas Light. See Note 2 to the financial statements under "Southern Company Gas – Rate Proceedings" in Item 8 of the Form 10-K for additional information.

Revenues associated with gas costs and other cost recovery increased in the first quarter 2026 compared to the corresponding period in 2025 primarily due to higher cost of natural gas driven by higher natural gas prices, as well as increases in other expenses passed through to customers. See "Cost of Natural Gas" herein for additional information. Natural gas distribution rates include provisions to adjust billings for fluctuations in natural gas costs. Therefore, gas costs recovered through natural gas revenues generally equal the amount expensed in cost of natural gas and do not affect net income from the natural gas distribution utilities.

Revenues from gas marketing services increased in the first quarter 2026 compared to the corresponding period in 2025 primarily due to higher commodity prices, partially offset by weather impacts.

***Other Revenues***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $(13) | (3.7) |

---

In the first quarter 2026, other revenues were $336 million compared to $349 million for the corresponding period in 2025. The decrease was primarily due to a decrease of $18 million in unregulated sales associated with energy conservation projects at Georgia Power and $7 million in customer charges related to contributions in aid of construction included in rates in 2025 at Mississippi Power, partially offset by an increase of $13 million in unregulated sales associated with power delivery construction and maintenance projects at Georgia Power.

***Fuel and Purchased Power Expenses***

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs. <br>First Quarter 2025 | First Quarter 2026 vs. <br>First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Fuel | $199 | 15.4% |
| Purchased power | (6) | (2.4) |
| Total fuel and purchased power expenses | $193 |  |

---

In the first quarter 2026, total fuel and purchased power expenses were $1.7 billion compared to $1.5 billion for the corresponding period in 2025. The increase was due to a $99 million increase related to the average cost of fuel and purchased power and a $94 million net increase related to the volume of KWHs generated and purchased.

Fuel and purchased power energy transactions at the traditional electric operating companies are generally offset by fuel revenues and do not have a significant impact on net income. See Note 2 to the financial statements in Item 8 of the Form 10-K for additional information. Fuel expenses incurred under Southern Power's PPAs are generally the responsibility of the counterparties and do not significantly impact net income.

Energy purchases will vary depending on demand for energy within the Southern Company system's electric service territory, the market prices of wholesale energy as compared to the cost of the Southern Company system's generation, and the availability of the Southern Company system's generation.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

Details of the Southern Company system's generation and purchased power and the related costs were as follows:

---

| | | |
|:---|:---|:---|
| | **First Quarter 2026** | First Quarter 2025 |
| Total generation *(in billions of KWHs)* | **47** | 46 |
| Total purchased power *(in billions of KWHs)* | **4** | 5 |
| Sources of generation *(percent)* — |  |  |
| &nbsp;&nbsp;&nbsp;Gas | **50** | 50 |
| &nbsp;&nbsp;&nbsp;Coal | **20** | 19 |
| &nbsp;&nbsp;Nuclear | **20** | 20 |
| &nbsp;&nbsp;&nbsp;Hydro | **2** | 3 |
| &nbsp;&nbsp;&nbsp;Wind, Solar, and Other | **8** | 8 |
| Cost of fuel, generated *(in cents per net KWH)*— |  |  |
| &nbsp;&nbsp;Gas | **4.71** | 4.17 |
| &nbsp;&nbsp;&nbsp;Coal | **3.56** | 4.02 |
| &nbsp;&nbsp;Nuclear | **0.79** | 0.84 |
| Average cost of fuel, generated *(in cents per net KWH)* | **3.56** | 3.35 |
| Average cost of purchased power *(in cents per net KWH)*<sup>(\*)</sup> | **6.09** | 5.50 |

---

(\*)Average cost of purchased power includes fuel purchased by the Southern Company system for tolling agreements where power is generated by the provider.

***Cost of Natural Gas***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $252 | 37.4 |

---

Excluding Atlanta Gas Light, which does not sell natural gas to end-use customers, the natural gas distribution utilities' rates include provisions to adjust billings for fluctuations in natural gas costs. Therefore, gas costs recovered through natural gas revenues generally equal the amount expensed in cost of natural gas and do not affect net income from the natural gas distribution utilities. See Note 2 to the financial statements under "Southern Company Gas – Natural Gas Cost Recovery" in Item 8 of the Form 10-K for additional information. Cost of natural gas at the natural gas distribution utilities represented 84.2% of the total cost of natural gas in the first quarter 2026.

In the first quarter 2026, cost of natural gas was $926 million compared to $674 million for the corresponding period in 2025. The increase reflects higher gas cost recovery as a result of a 38.0% increase in natural gas prices.

***Cost of Other Sales***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $(18) | (9.0) |

---

In the first quarter 2026, cost of other sales was $181 million compared to $199 million for the corresponding period in 2025. The decrease was primarily related to a decrease of $25 million in expenses at PowerSecure primarily related to distributed infrastructure and energy efficiency projects, partially offset by an increase of $11 million in expenses associated with unregulated power delivery construction and maintenance projects at Georgia Power.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Other Operations and Maintenance Expenses***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $34 | 2.1 |

---

In the first quarter 2026, other operations and maintenance expenses were $1.65 billion compared to $1.62 billion for the corresponding period in 2025. The increase was primarily due to a $24 million increase in certain employee compensation and benefit expenses, $20 million in weather-related damage at a Southern Power solar project, and increases of $15 million in transmission and distribution expenses at the traditional electric operating companies, $14 million in customer education and assistance expenses at Georgia Power, $13 million in technology infrastructure and application production costs, $10 million in expenses at PowerSecure primarily related to distributed infrastructure projects, and $7 million related to certain deferred expenses at Southern Company Gas. Partially offsetting the increase was a $21 million decrease associated with utilization of the reliability reserve to offset reliability-related transmission, distribution, and generation expenses at Alabama Power, a $21 million increase in nuclear property insurance refunds at Alabama Power and Georgia Power, an $18 million decrease in planned outages at the traditional electric operating companies, and an $18 million decrease in legal expenses at Southern Company Gas.

***Depreciation and Amortization***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $134 | 10.4 |

---

In the first quarter 2026, depreciation and amortization was $1.4 billion compared to $1.3 billion for the corresponding period in 2025. The increase was primarily due to increases of $127 million in accelerated depreciation related to wind repowering projects at Southern Power and $102 million associated with additional plant in service, partially offset by a decrease of $98 million resulting from the extension of Georgia Power's 2022 ARP. See Note 2 to the financial statements under "Georgia Power – Rate Plans" for additional information related to Georgia Power's 2022 ARP. Also see Note (K) to the Condensed Financial Statements under "Southern Power – Wind Repowering Projects" herein and Notes 5 and 15 to the financial statements under "Depreciation and Amortization – Southern Power" and "Southern Power – Wind Repowering Projects," respectively, in Item 8 of the Form 10-K for additional information regarding Southern Power's wind repowering projects.

***Taxes Other Than Income Taxes***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $19 | 4.3 |

---

In the first quarter 2026, taxes other than income taxes were $464 million compared to $445 million for the corresponding period in 2025. The increase was primarily due to increases of $7 million in property taxes primarily related to an increase in the assessed value of property and $6 million in revenue taxes at Nicor Gas as a result of higher natural gas revenues.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Allowance for Equity Funds Used During Construction***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $48 | 65.8 |

---

In the first quarter 2026, allowance for equity funds used during construction was $121 million compared to $73 million for the corresponding period in 2025. The increase was primarily associated with an increase in capital expenditures subject to AFUDC at Georgia Power.

***Earnings from Equity Method Investments***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $18 | 56.3 |

---

In the first quarter 2026, earnings from equity method investments were $50 million compared to $32 million for the corresponding period in 2025. The increase was primarily due to an increase of $10 million at Southern Holdings related to investment gains and losses and a $7 million increase at Southern Company Gas related to SNG. See Note 7 to the financial statements in Item 8 of the Form 10-K and Note (E) to the Condensed Financial Statements under "Southern Company" and "Southern Company Gas" herein for additional information.

***Interest Expense, Net of Amounts Capitalized***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $64 | 9.0 |

---

In the first quarter 2026, interest expense, net of amounts capitalized was $778 million compared to $714 million for the corresponding period in 2025. The increase primarily reflects approximately $56 million related to higher average outstanding borrowings, an $11 million loss associated with the extinguishment of debt at the parent company, and a $7 million increase in interest associated with PPAs accounted for as finance leases at Georgia Power, partially offset by an increase of $23 million in capitalized interest and AFUDC debt associated with increased capital expenditures. See FINANCIAL CONDITION AND LIQUIDITY – "Sources of Capital" and "Financing Activities" herein for additional information.

***Income Taxes***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $(52) | (18.6) |

---

In the first quarter 2026, income taxes were $228 million compared to $280 million for the corresponding period in 2025. The decrease was primarily due to an increase of $35 million related to higher wind PTCs resulting from the purchase of the noncontrolling membership interest in the SP Wind tax equity partnership at Southern Power and an increase of $16 million in amortization of federal PTCs at Georgia Power. See Note (G) to the Condensed Financial Statements herein and Note 15 to the financial statements under "Southern Power – Purchase of Renewable Facility Interests" in Item 8 of the Form 10-K for additional information.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Net Loss Attributable to Noncontrolling Interests***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $46 | 71.9 |

---

Substantially all noncontrolling interests relate to renewable projects at Southern Power. In the first quarter 2026, net loss attributable to noncontrolling interests was $18 million compared to $64 million for the corresponding period in 2025. The decrease was primarily due to $41 million in lower HLBV loss allocations to Southern Power's tax equity partners, primarily resulting from Southern Power's purchase of the noncontrolling membership interests in the SP Wind tax equity partnership, and $5 million in higher income allocations to Southern Power's equity partners. See Note 15 to the financial statements under "Southern Power – Purchase of Renewable Facility Interests" in Item 8 of the Form 10-K for additional information.

**Alabama Power**

***Net Income***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $50 | 13.3 |

---

Alabama Power's net income in the first quarter 2026 was $425 million compared to $375 million for the corresponding period in 2025. The increase was primarily due to a decrease in other operations and maintenance expenses and an increase in retail revenues associated with sales growth, partially offset by weather impacts.

***Retail Revenues***

In the first quarter 2026, retail revenues were $1.73 billion compared to $1.72 billion for the corresponding period in 2025. Details of the changes in retail revenues were as follows:

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs.<br>First Quarter 2025 | First Quarter 2026 vs.<br>First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Rates and pricing | $3 | 0.2% |
| Sales growth | 34 | 2.0 |
| Weather | (39) | (2.3) |
| Fuel and other cost recovery | 7 | 0.4 |
| Retail revenues | $5 | 0.3% |

---

Changes in rates and pricing resulted in an increase in revenues in the first quarter 2026 as compared to the corresponding period in 2025 primarily due to an increase in Rate CNP Compliance revenues.

Changes in sales resulted in an increase in revenues in the first quarter 2026 as compared to the corresponding period in 2025. Weather-adjusted residential KWH sales increased 2.2% primarily due to increased customer usage and customer growth. Weather-adjusted commercial KWH sales increased 0.3% primarily due to customer growth. Industrial KWH sales increased 4.0% primarily due to an increase in the primary metals sector.

Fuel and other cost recovery revenues increased in the first quarter 2026 as compared to the corresponding period in 2025 primarily as a result of higher recoverable fuel costs. Electric rates include provisions to recognize the recovery of fuel costs, purchased power costs, PPAs certificated by the Alabama PSC, and costs associated with the NDR. Under these provisions, fuel and other cost recovery revenues generally equal fuel and other cost recovery expenses and do not affect net income. See Note 2 to the financial statements under "Alabama Power" in Item 8 of the Form 10-K for additional information.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Wholesale Revenues* – *Non-Affiliates***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $26 | 28.6 |

---

In the first quarter 2026, wholesale revenues from sales to non-affiliates were $117 million compared to $91 million for the corresponding period in 2025. The increase consisted of a $36 million increase in energy revenues due to increases of $31 million related to the average cost per KWH sold due to higher Southern Company system fuel and purchased power prices and $5 million related to the volume of KWH sales associated with higher market demand, partially offset by a $10 million decrease in non-fuel revenues from wholesale capacity contracts. The decrease in capacity revenues was primarily due to the expiration of a power sales agreement in December 2025, partially offset by the commencement of a new power sales agreement in October 2025 associated with the acquisition of the Lindsay Hill Generating Station. See Note 15 to the financial statements under "Alabama Power" in Item 8 of the Form 10-K for additional information.

***Wholesale Revenues* – *Affiliates***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $50 | 72.5 |

---

In the first quarter 2026, wholesale revenues from sales to affiliates were $119 million compared to $69 million for the corresponding period in 2025. The increase was primarily due to increases of 35.9% in the volume of KWH sales due to affiliated company energy needs and 26.3% in the price of energy due to an increase in natural gas prices.

Wholesale revenues from sales to affiliated companies will vary depending on demand and the availability and cost of generating resources at each company. These affiliate sales are made in accordance with the IIC, as approved by the FERC. Energy revenues related to these transactions do not have a significant impact on earnings since this energy is generally sold at marginal cost and energy purchases are generally offset by energy revenues through Alabama Power's energy cost recovery clause.

***Fuel and Purchased Power Expenses***

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs.<br>First Quarter 2025 | First Quarter 2026 vs.<br>First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Fuel | $42 | 10.9% |
| Purchased power – non-affiliates | 4 | 5.8 |
| Purchased power – affiliates | 18 | 32.7 |
| Total fuel and purchased power expenses | $64 |  |

---

In the first quarter 2026, total fuel and purchased power expenses were $574 million compared to $510 million for the corresponding period in 2025. The increase was due to a $53 million increase related to the average cost of fuel and purchased power and an $11 million net increase related to the volume of KWHs generated and purchased.

Fuel and purchased power energy transactions do not have a significant impact on earnings since energy expenses are generally offset by energy revenues through Alabama Power's energy cost recovery clause. See Note 2 to the financial statements under "Alabama Power – Rate ECR" in Item 8 of the Form 10-K for additional information.

Energy purchases from non-affiliates will vary depending on the market prices of wholesale energy as compared to the cost of the Southern Company system's generation, demand for energy within the Southern Company system's electric service territory, and the availability of the Southern Company system's generation.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

Energy purchases from affiliates will vary depending on demand for energy and the availability and cost of generating resources at each company within the Southern Company system. These purchases are made in accordance with the IIC or other contractual agreements, as approved by the FERC.

Details of Alabama Power's generation and purchased power and the related costs were as follows:

---

| | | |
|:---|:---|:---|
| | **First Quarter 2026** | First Quarter 2025 |
| Total generation *(in billions of KWHs)* | **16** | 15 |
| Total purchased power *(in billions of KWHs)* | **2** | 2 |
| Sources of generation *(percent)* — |  |  |
| &nbsp;&nbsp;Coal | **35** | 35 |
| &nbsp;&nbsp;Gas | **33** | 33 |
| &nbsp;&nbsp;&nbsp;Nuclear | **26** | 24 |
| &nbsp;&nbsp;&nbsp;Hydro | **6** | 8 |
| Cost of fuel, generated *(in cents per net KWH)* — |  |  |
| &nbsp;&nbsp;Coal | **3.37** | 3.43 |
| &nbsp;&nbsp;Gas | **3.99** | 3.58 |
| &nbsp;&nbsp;&nbsp;Nuclear | **0.72** | 0.70 |
| Average cost of fuel, generated *(in cents per net KWH)* | **2.87** | 2.76 |
| Average cost of purchased power *(in cents per net KWH)*<sup>(\*)</sup> | **9.65** | 7.52 |

---

(\*)Average cost of purchased power includes fuel, energy, and transmission purchased by Alabama Power for tolling agreements where power is generated by the provider.

***Other Operations and Maintenance Expenses***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $(70) | (15.1) |

---

In the first quarter 2026, other operations and maintenance expenses were $393 million compared to $463 million for the corresponding period in 2025. The decrease was primarily due to decreases of $28 million in planned outages, $21 million associated with utilization of the reliability reserve to offset reliability-related transmission, distribution, and generation expenses, and $11 million associated with higher nuclear property insurance refunds and $10 million of deferred costs related to the Jurisdictional Separation Study Order. See Note (B) to the Condensed Financial Statements under "Alabama Power – Reliability Reserve Accounting Order" herein and Note 2 to the financial statements under "Alabama Power – Jurisdictional Separation Study Order" in Item 8 of the Form 10-K for additional information.

***Income Taxes***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $18 | 16.2 |

---

In the first quarter 2026, income taxes were $129 million compared to $111 million for the corresponding period in 2025. The increase was primarily due to higher pre-tax earnings.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

**Georgia Power**

***Net Income***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $32 | 5.4 |

---

Georgia Power's net income in the first quarter 2026 was $628 million compared to $596 million for the corresponding period in 2025. The increase was primarily due to an increase in AFUDC equity and higher non-fuel-related wholesale revenues, partially offset by an increase in other operations and maintenance expenses.

***Retail Revenues***

In the first quarter 2026, retail revenues were $2.64 billion compared to $2.63 billion for the corresponding period in 2025. Details of the changes in retail revenues were as follows:

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs.<br>First Quarter 2025 | First Quarter 2026 vs.<br>First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Rates and pricing | $(43) | (1.6)% |
| Sales growth | 47 | 1.8 |
| Weather | (27) | (1.0) |
| Fuel cost recovery | 31 | 1.1 |
| Retail revenues | $8 | 0.3% |

---

Changes in rates and pricing resulted in a decrease in revenues in the first quarter 2026 as compared to the corresponding period in 2025 primarily due to lower contributions from commercial and industrial customers with variable demand-driven pricing.

Changes in sales resulted in an increase in revenues in the first quarter 2026 as compared to the corresponding period in 2025. Weather-adjusted residential KWH sales increased 0.4% primarily due to customer growth, partially offset by decreased customer usage. Weather-adjusted commercial KWH sales increased 6.4% primarily due to additional sales from data centers. Weather-adjusted industrial KWH sales were flat primarily due to increases in the electronics and stone, clay, and glass sectors, offset by a decrease in the paper sector.

Fuel revenues and costs are allocated between retail and wholesale jurisdictions. Retail fuel cost recovery revenues increased in the first quarter 2026 as compared to the corresponding period in 2025 due to higher recoverable fuel costs. Electric rates include provisions to adjust billings for fluctuations in fuel costs, including the energy component of purchased power costs. Under these fuel cost recovery provisions, fuel revenues generally equal fuel expenses and do not affect net income. See Note (B) to the Condensed Financial Statements under "Georgia Power – Fuel Cost Recovery" herein and Note 2 to the financial statements under "Georgia Power – Fuel Cost Recovery" in Item 8 of the Form 10-K for additional information.

***Wholesale Revenues***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $83 | 57.6 |

---

In the first quarter 2026, wholesale revenues were $227 million compared to $144 million for the corresponding period in 2025. The increase was due to a $74 million increase in energy revenues due to increases of $41 million related to the average cost per KWH sold due to higher Southern Company system fuel and purchased power prices, $25 million in non-fuel-related energy revenues from wholesale contracts, and $8 million related to the volume of

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

KWH sales associated with higher market demand, as well as a $9 million increase in capacity revenues from new and existing power sales agreements.

Wholesale revenues from sales to non-affiliates consist of PPAs and short-term opportunity sales. Wholesale revenues from PPAs have both capacity and energy components. Wholesale capacity revenues from PPAs are recognized in amounts billable under the contract terms and provide for recovery of fixed costs and a return on investment. Wholesale revenues from sales to non-affiliates will vary depending on fuel prices, the market prices of wholesale energy compared to the cost of Georgia Power's and the Southern Company system's generation, demand for energy within the Southern Company system's electric service territory, and the availability of the Southern Company system's generation. Increases and decreases in energy revenues that are driven by fuel prices are accompanied by an increase or decrease in fuel costs and do not have a significant impact on net income. Short-term opportunity sales are made at market-based rates that generally provide a margin above Georgia Power's variable cost of energy.

Wholesale revenues from sales to affiliated companies will vary depending on demand and the availability and cost of generating resources at each company. These affiliate sales are made in accordance with the IIC, as approved by the FERC. Energy revenues related to these transactions do not have a significant impact on earnings since this energy is generally sold at marginal cost.

***Other Revenues***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $14 | 5.3 |

---

In the first quarter 2026, other revenues were $277 million compared to $263 million for the corresponding period in 2025. The increase was primarily due to increases of $13 million in unregulated sales associated with power delivery construction and maintenance projects, $13 million in open access transmission tariff sales, and $8 million in realized gains associated with price stability products for retail customers on variable demand-driven pricing tariffs, partially offset by a decrease of $18 million in unregulated sales associated with energy conservation projects.

***Fuel and Purchased Power Expenses***

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs.<br>First Quarter 2025 | First Quarter 2026 vs.<br>First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Fuel | $77 | 14.7% |
| Purchased power – non-affiliates | (3) | (1.9) |
| Purchased power – affiliates | 25 | 9.5 |
| Total fuel and purchased power expenses | $99 |  |

---

In the first quarter 2026, total fuel and purchased power expenses were $1.0 billion compared to $0.9 billion for the corresponding period in 2025. The increase was due to a $68 million increase related to the average cost of fuel and purchased power and a $31 million net increase related to the volume of KWHs generated and purchased.

Fuel and purchased power energy transactions do not have a significant impact on earnings since these fuel expenses are generally offset by fuel revenues through Georgia Power's fuel cost recovery mechanism. See Note 2 to the financial statements under "Georgia Power – Fuel Cost Recovery" in Item 8 of the Form 10-K for additional information.

Energy purchases from non-affiliates will vary depending on the market prices of wholesale energy as compared to the cost of the Southern Company system's generation, demand for energy within the Southern Company system's electric service territory, and the availability of the Southern Company system's generation.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

Energy purchases from affiliates will vary depending on demand for energy and the availability and cost of generating resources at each company within the Southern Company system. These purchases are made in accordance with the IIC or other contractual agreements, all as approved by the FERC.

Details of Georgia Power's generation and purchased power and the related costs were as follows:

---

| | | |
|:---|:---|:---|
| | **First Quarter 2026** | First Quarter 2025 |
| Total generation *(in billions of KWHs)* | **16** | 15 |
| Total purchased power *(in billions of KWHs)* | **9** | 9 |
| Sources of generation *(percent)* — |  |  |
| &nbsp;&nbsp;&nbsp;Gas | **42** | 40 |
| &nbsp;&nbsp;&nbsp;Nuclear | **33** | 36 |
| &nbsp;&nbsp;&nbsp;Coal | **23** | 21 |
| &nbsp;&nbsp;&nbsp;Hydro and other | **2** | 3 |
| Cost of fuel, generated *(in cents per net KWH)* — |  |  |
| &nbsp;&nbsp;&nbsp;Gas | **4.75** | 4.09 |
| &nbsp;&nbsp;&nbsp;Nuclear | **0.84** | 0.92 |
| &nbsp;&nbsp;&nbsp;Coal | **3.76** | 4.72 |
| Average cost of fuel, generated *(in cents per net KWH)* | **3.21** | 3.06 |
| Average cost of purchased power *(in cents per net KWH)*<sup>(\*)</sup> | **5.96** | 5.24 |

---

(\*)Average cost of purchased power includes fuel purchased by Georgia Power for tolling agreements where power is generated by the provider.

***Other Operations and Maintenance Expenses***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $38 | 6.0 |

---

In the first quarter 2026, other operations and maintenance expenses were $672 million compared to $634 million for the corresponding period in 2025. The increase was primarily due to increases of $14 million in customer education and assistance expenses, $11 million in certain generation expenses primarily due to planned outages, $6 million in certain employee compensation and benefit expenses, and $5 million in technology infrastructure and application production costs, partially offset by a $10 million increase in nuclear property insurance refunds.

***Depreciation and Amortization***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $(19) | (3.8) |

---

In the first quarter 2026, depreciation and amortization was $484 million compared to $503 million for the corresponding period in 2025. The decrease was primarily due to a decrease of $98 million resulting from the extension of the 2022 ARP, partially offset by an increase of $72 million from additional plant in service. See Note 2 to the financial statements under "Georgia Power – Rate Plans" in Item 8 of the Form 10-K for additional information.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Allowance for Equity Funds Used During Construction***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $49 | 102.1 |

---

In the first quarter 2026, allowance for equity funds used during construction was $97 million compared to $48 million for the corresponding period in 2025. The increase was primarily due to an increase in capital expenditures subject to AFUDC.

***Interest Expense, Net of Amounts Capitalized***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $17 | 9.1 |

---

In the first quarter 2026, interest expense, net of amounts capitalized was $204 million compared to $187 million for the corresponding period in 2025. The increase was primarily associated with increases of approximately $25 million related to higher average outstanding borrowings and $7 million in interest associated with PPAs accounted for as finance leases, partially offset by an increase of $16 million in AFUDC debt related to increased capital expenditures. See FINANCIAL CONDITION AND LIQUIDITY – "Sources of Capital" and "Financing Activities" herein for additional information.

***Income Taxes***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $(13) | (13.3) |

---

In the first quarter 2026, income taxes were $85 million compared to $98 million for the corresponding period in 2025. The decrease was primarily due to an increase of $16 million in amortization of federal PTCs. See Note (G) to the Condensed Financial Statements herein for additional information.

**Mississippi Power**

***Net Income***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $5 | 9.1 |

---

Mississippi Power's net income in the first quarter 2026 was $60 million compared to $55 million for the corresponding period in 2025. The increase was primarily due to higher retail revenues associated with changes in rates and pricing, partially offset by a decrease in other revenues and an increase in other operations and maintenance expenses.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Retail Revenues***

In the first quarter 2026, retail revenues were $273 million compared to $248 million for the corresponding period in 2025. Details of the changes in retail revenues were as follows:

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs.<br>First Quarter 2025 | First Quarter 2026 vs.<br>First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Rates and pricing | $18 | 7.3% |
| Sales decline |  |  |
| Weather | (3) | (1.2) |
| Fuel and other cost recovery | 10 | 4.0 |
| Retail revenues | $25 | 10.1% |

---

Changes in rates and pricing resulted in an increase in revenues in the first quarter 2026 as compared to the corresponding period in 2025 primarily due to increases in PEP rates. See Note 2 to the financial statements under "Mississippi Power – Performance Evaluation Plan" in Item 8 of the Form 10-K and Note (B) to the Condensed Financial Statements under "Mississippi Power – Performance Evaluation Plan" herein for additional information.

Changes in sales resulted in an immaterial change in revenues in the first quarter 2026 as compared to the corresponding period in 2025. Weather-adjusted residential KWH sales decreased 1.8% primarily due to decreased customer usage. Weather-adjusted commercial KWH sales increased 1.5% primarily due to increased customer usage. Industrial KWH sales decreased 1.5% primarily due to decreases in the chemicals and oil and gas extraction sectors.

Fuel and other cost recovery revenues increased in the first quarter 2026 as compared to the corresponding period in 2025 primarily as a result of higher recoverable fuel costs. Recoverable fuel costs include fuel and purchased power expenses reduced by the fuel and emissions portion of wholesale revenues from energy sold to customers outside Mississippi Power's service territory. Electric rates include provisions to adjust billings for fluctuations in fuel costs, including the energy component of purchased power costs. Under these provisions, fuel revenues generally equal fuel expenses, including the energy component of purchased power costs, and do not affect net income. See Note 2 to the financial statements in Item 8 of the Form 10-K for additional information.

***Wholesale Revenues – Non-Affiliates***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $16 | 22.5 |

---

In the first quarter 2026, wholesale revenues from sales to non-affiliates were $87 million compared to $71 million for the corresponding period in 2025. The increase was due to a $9 million increase in opportunity sales, a $4 million increase associated with MRA customers primarily due to pricing and higher recoverable fuel costs, partially offset by milder weather, and a $3 million increase associated with new and existing power supply agreements.

Wholesale revenues from sales to non-affiliates will vary depending on fuel prices, the market prices of wholesale energy compared to the cost of Mississippi Power's and the Southern Company system's generation, demand for energy within the Southern Company system's electric service territory, and the availability of the Southern Company system's generation. Increases and decreases in energy revenues that are driven by fuel prices are accompanied by an increase or decrease in fuel costs and do not have a significant impact on net income. In addition, Mississippi Power provides service under long-term contracts with rural electric cooperative associations and municipalities located in southeastern Mississippi under cost-based electric tariffs which are subject to regulation by the FERC. Short-term opportunity energy sales are also included in sales for resale to non-affiliates. These opportunity sales are made at market-based rates that generally provide a margin above Mississippi Power's

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

variable cost to produce the energy. See Note 2 to the financial statements under "Mississippi Power – Municipal and Rural Associations Tariff" in Item 8 of the Form 10-K for additional information.

***Wholesale Revenues – Affiliates***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $16 | 19.8 |

---

In the first quarter 2026, wholesale revenues from sales to affiliates were $97 million compared to $81 million for the corresponding period in 2025. The increase was primarily due to increases of $13 million related to the price of energy driven by natural gas prices and $3 million related to the volume of KWH sales.

Wholesale revenues from sales to affiliated companies will vary depending on demand and the availability and cost of generating resources at each company. These affiliate sales are made in accordance with the IIC or other contractual agreements, as approved by the FERC. Energy revenues related to these transactions do not have a significant impact on earnings since this energy is generally sold at marginal cost.

***Other Revenues***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $(5) | (25.0) |

---

In the first quarter 2026, other revenues were $15 million compared to $20 million for the corresponding period in 2025. The decrease was primarily due to customer charges related to contributions in aid of construction included in rates in 2025.

***Fuel and Purchased Power Expenses***

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs.<br>First Quarter 2025 | First Quarter 2026 vs.<br>First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Fuel | $29 | 18.7% |
| Purchased power | 10 | 90.9 |
| Total fuel and purchased power expenses | $39 |  |

---

In the first quarter 2026, total fuel and purchased power expenses were $205 million compared to $166 million for the corresponding period in 2025. The increase was primarily due to a $37 million increase related to the average cost of fuel and purchased power, of which $7 million is related to capacity.

Fuel and purchased power energy transactions do not have a significant impact on earnings since energy expenses are generally offset by energy revenues through Mississippi Power's fuel cost recovery clause.

Energy purchases will vary depending on the market prices of wholesale energy as compared to the cost of the Southern Company system's generation, demand for energy within the Southern Company system's electric service territory, and the availability of the Southern Company system's generation. These purchases are made in accordance with the IIC or other contractual agreements, as approved by the FERC.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

Details of Mississippi Power's generation and purchased power and the related costs were as follows:

---

| | | |
|:---|:---|:---|
| | **First Quarter 2026** | First Quarter 2025 |
| Total generation *(in millions of KWHs)* | **4554** | 4538 |
| Total purchased power *(in millions of KWHs)* | **241** | 188 |
| Sources of generation *(percent)* – |  |  |
| &nbsp;&nbsp;&nbsp;Gas | **94** | 91 |
| &nbsp;&nbsp;&nbsp;Coal | **6** | 9 |
| Cost of fuel, generated *(in cents per net KWH)* – |  |  |
| &nbsp;&nbsp;&nbsp;Gas | **4.30** | 3.50 |
| &nbsp;&nbsp;&nbsp;Coal | **4.47** | 4.94 |
| Average cost of fuel, generated *(in cents per net KWH)* | **4.31** | 3.65 |
| Average cost of purchased power *(in cents per net KWH)* | **8.67** | 5.78 |

---

***Other Operations and Maintenance Expenses***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $4 | 4.8 |

---

For first quarter 2026, other operations and maintenance expenses were $88 million compared to $84 million for the corresponding period in 2025. The increase was primarily due to increases of $5 million in generation expenses primarily associated with non-outage costs, $2 million in expenses associated with unregulated products and services, and $2 million related to distribution expenses, partially offset by a decrease of $6 million due to utilization of the retail reliability reserve to offset generation, transmission, and distribution expenses. See Note (B) to the Condensed Financial Statements under "Mississippi Power – Reliability Reserve Accounting Order" herein for additional information.

**Southern Power**

***Net Income Attributable to Southern Power***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $(83) | (95.4) |

---

Net income attributable to Southern Power in the first quarter 2026 was $4 million compared to $87 million for the corresponding period in 2025. The decrease was primarily due to higher accelerated depreciation related to wind repowering projects and an increase in other operations and maintenance expenses associated with hail damage to solar panels at the Millers Branch solar project, partially offset by higher revenues due to higher market prices and increased demand for energy related to weather impacts. See Note (K) to the Condensed Financial Statements under "Southern Power – Wind Repowering Projects" herein and Notes 5 and 15 to the financial statements under "Depreciation and Amortization – Southern Power" and "Southern Power," respectively, in Item 8 of the Form 10-K for additional information.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Operating Revenues***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $114 | 20.1 |

---

Total operating revenues include PPA capacity revenues derived primarily from long-term contracts associated with natural gas facilities and PPA energy revenues derived from long-term contracts associated with Southern Power's generation facilities. To the extent Southern Power has capacity not contracted under a PPA, it may sell power into an accessible wholesale market, or, to the extent those generation assets are part of the FERC-approved IIC, it may sell power into the Southern Company power pool.

*Natural Gas Capacity and Energy Revenue*

Capacity revenues generally represent the greatest contribution to operating income and are designed to provide recovery of fixed costs plus a return on investment.

Energy is generally sold at variable cost or is indexed to published natural gas indices. Energy revenues will vary depending on the energy demand of Southern Power's customers and their generation capacity, as well as the market prices of wholesale energy compared to the cost of Southern Power's energy. Energy revenues also include fees for support services, fuel storage, and unit start charges. Increases and decreases in energy revenues under PPAs that are driven by fuel or purchased power prices are accompanied by an increase or decrease in fuel and purchased power costs and do not have a significant impact on net income.

*Solar and Wind Energy Revenue*

Southern Power's energy sales from solar and wind generating facilities are predominantly through long-term PPAs that do not have capacity revenue. Customers either purchase the energy output of a dedicated renewable facility through an energy charge or pay a fixed price related to the energy generated from the respective facility and sold to the grid. As a result, Southern Power's ability to recover fixed and variable operations and maintenance expenses is dependent upon the level of energy generated from these facilities, which can be impacted by weather conditions, equipment performance, transmission constraints, and other factors.

See FUTURE EARNINGS POTENTIAL – "Southern Power's Power Sales Agreements" in Item 7 of the Form 10-K for additional information regarding Southern Power's PPAs.

*Operating Revenues Details*

Details of Southern Power's operating revenues were as follows:

---

| | | |
|:---|:---|:---|
| | **First Quarter 2026** | First Quarter 2025 |
| | *(in millions)* | *(in millions)* |
| PPA capacity revenues | $**122** | $121 |
| PPA energy revenues | **479** | 373 |
| Total PPA revenues | **601** | 494 |
| Non-PPA revenues | **76** | 69 |
| Other revenues | **4** | 4 |
| Total operating revenues | $**681** | $567 |

---

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

In the first quarter 2026, total operating revenues were $681 million, reflecting a $114 million, or 20.1%, increase from the corresponding period in 2025. The change in operating revenues was primarily due to the following:

• PPA energy revenues increased $106 million, or 28.4%, primarily due to an increase of $70 million related to the volume of KWHs sold under natural gas PPAs and an increase of $38 million driven by fuel and purchased power prices.

• Non-PPA revenues increased $7 million, or 10.1%, primarily due to an increase of $11 million driven by the market price of energy, partially offset by a decrease of $2 million related to the volume of KWHs sold through short-term sales.

***Fuel and Purchased Power Expenses***

Details of Southern Power's generation and purchased power were as follows:

---

| | | |
|:---|:---|:---|
| | **First Quarter 2026** | First Quarter 2025 |
|  | *(in billions of KWHs)* | *(in billions of KWHs)* |
| Generation | **10.7** | 10.9 |
| Purchased power | **0.9** | 0.5 |
| Total generation and purchased power | **11.6** | 11.4 |
| Total generation and purchased power<br>(excluding solar, wind, fuel cells, and tolling agreements) | **5.8** | 5.4 |

---

Southern Power's PPAs for natural gas generation generally provide that the purchasers are responsible for either procuring the fuel (tolling agreements) or reimbursing Southern Power for substantially all of the cost of fuel relating to the energy delivered under such PPAs. Consequently, changes in such fuel costs are generally accompanied by a corresponding change in related fuel revenues and do not have a significant impact on net income. Southern Power is responsible for the cost of fuel for generating units that are not covered under PPAs. Power from these generating units is sold into the wholesale market or into the Southern Company power pool for capacity owned directly by Southern Power.

Purchased power expenses will vary depending on demand, availability, and the cost of generating resources throughout the Southern Company system and other contract resources. Load requirements are submitted to the Southern Company power pool on an hourly basis and are fulfilled with the lowest cost alternative, whether that is generation owned by Southern Power, an affiliate company, or external parties. Such purchased power costs are generally recovered through PPA revenues.

Details of Southern Power's fuel and purchased power expenses were as follows:

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs.<br>First Quarter 2025 | First Quarter 2026 vs.<br>First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Fuel | $47 | 22.7% |
| Purchased power | 30 | 107.1 |
| Total fuel and purchased power expenses | $77 |  |

---

In the first quarter 2026, total fuel and purchased power expenses increased $77 million, or 32.8%, as compared to the corresponding period in 2025. Fuel expense increased $47 million primarily due to an increase of $49 million associated with the average cost of fuel. Purchased power expense increased $30 million due to an increase of $26 million related to the volume of KWHs purchased and an increase of $4 million associated with the average cost of purchased power.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Other Operations and Maintenance Expenses***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $14 | 11.4 |

---

In the first quarter 2026, other operations and maintenance expenses were $137 million compared to $123 million for the corresponding period in 2025. The increase was primarily due to hail damage to solar panels at the Millers Branch solar project, partially offset by a decrease in generation expenses related to planned outages.

***Depreciation and Amortization***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $126 | 82.9 |

---

In the first quarter 2026, depreciation and amortization was $278 million compared to $152 million for the corresponding period in 2025. The increase was primarily due to a $127 million increase in accelerated depreciation related to wind repowering projects. See Note (K) to the Condensed Financial Statements under "Southern Power – Wind Repowering Projects" herein and Notes 5 and 15 to the financial statements under "Depreciation and Amortization – Southern Power" and "Southern Power – Wind Repowering Projects," respectively, in Item 8 of the Form 10-K for additional information.

***Income Taxes (Benefit)***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $(69) | N/M |

---

In the first quarter 2026, income tax benefit was $70 million compared to $1 million for the corresponding period in 2025. The increase was primarily due to higher wind PTCs resulting from Southern Power's purchase of the noncontrolling membership interests in the SP Wind tax equity partnership, as well as a change in pre-tax earnings attributable to Southern Power, including the impact of accelerated depreciation related to wind repowering projects. See Note (G) to the Condensed Financial Statements and Note (K) to the Condensed Financial Statements under "Southern Power – Wind Repowering Projects" herein and Notes 5 and 15 to the financial statements under "Depreciation and Amortization – Southern Power" and "Southern Power," respectively, in Item 8 of the Form 10-K for additional information.

***Net Loss Attributable to Noncontrolling Interests***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $46 | 71.9 |

---

In the first quarter 2026, net loss attributable to noncontrolling interests was $18 million compared to $64 million for the corresponding period in 2025. The decrease was due to $41 million in lower HLBV loss allocations to tax equity partners, primarily resulting from Southern Power's purchase of the noncontrolling membership interests in the SP Wind tax equity partnership, and $5 million in higher income allocations to equity partners. See Note 15 to the financial statements under "Southern Power – Purchase of Renewable Facility Interests" in Item 8 of the Form 10-K for additional information.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

**Southern Company Gas**

Southern Company Gas uses Heating Degree Days to measure weather and the operational effects on its business. Generally, increased Heating Degree Days result in higher demand for natural gas on Southern Company Gas' distribution system. However, Southern Company Gas has various regulatory mechanisms, such as weather and revenue normalization and straight-fixed-variable rate design, which limit positive or negative impacts to income from exposure to weather changes within typical ranges in each of its utility's respective service territory. Southern Company Gas also utilizes weather hedges to limit the negative income impacts in the event of warmer-than-normal weather in Illinois and Georgia for gas marketing services. Therefore, weather typically does not have a significant net income impact.

During the Heating Season, more customers are connected to the gas distribution systems and natural gas usage is higher in periods of colder weather. Southern Company Gas' base operating expenses, excluding cost of natural gas and bad debt expense, are incurred relatively evenly throughout the year. Seasonality also affects the comparison of certain balance sheet items across quarters, including receivables, unbilled revenues, natural gas for sale, and notes payable. However, these items are comparable when reviewing Southern Company Gas' annual results. Thus, Southern Company Gas' operating results for the interim periods presented are not necessarily indicative of annual results and can vary significantly from quarter to quarter as a result of seasonality.

***Net Income***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $29 | 6.9 |

---

Southern Company Gas' net income in the first quarter 2026 was $447 million compared to $418 million for the corresponding period in 2025. The increase was primarily due to a $22 million increase in net income at gas distribution operations.

***Natural Gas Revenues***

In the first quarter 2026, natural gas revenues were $2.2 billion compared to $1.8 billion for the corresponding period in 2025. Details of the changes in natural gas revenues were as follows:

---

| | | |
|:---|:---|:---|
| | First Quarter 2026 vs.<br> First Quarter 2025 | First Quarter 2026 vs.<br> First Quarter 2025 |
|  | *(change in millions)* | *(% change)* |
| Rates | $76 | 4.1% |
| Gas costs and other cost recovery | 245 | 13.3 |
| Gas marketing services | 32 | 1.8 |
| Other | (1) | (0.1) |
| Natural gas revenues | $352 | 19.1% |

---

Changes in rates resulted in an increase in revenues in the first quarter 2026 as compared to the corresponding period in 2025 primarily due to base rate increases at Nicor Gas and Atlanta Gas Light. See Note 2 to the financial statements under "Southern Company Gas – Rate Proceedings" in Item 8 of the Form 10-K for additional information.

Revenues associated with gas costs and other cost recovery increased in the first quarter 2026 as compared to the corresponding period in 2025 primarily due to higher cost of natural gas driven by higher natural gas prices, as well as increases in other expenses passed through to customers. See "Cost of Natural Gas" herein for additional information.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

Revenues from gas marketing services increased in the first quarter 2026 as compared to the corresponding period in 2025 primarily due to higher commodity prices, partially offset by weather impacts.

***Cost of Natural Gas***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $252 | 37.4 |

---

Excluding Atlanta Gas Light, which does not sell natural gas to end-use customers, natural gas distribution rates include provisions to adjust billings for fluctuations in natural gas costs. Therefore, gas costs recovered through natural gas revenues generally equal the amount expensed in cost of natural gas and do not affect net income from gas distribution operations. Cost of natural gas at gas distribution operations represented 84.2% of the total cost of natural gas in the first quarter 2026. See MANAGEMENT'S DISCUSSION AND ANALYSIS – RESULTS OF OPERATIONS – "Southern Company Gas – Cost of Natural Gas" in Item 7 of the Form 10-K and "Natural Gas Revenues" herein for additional information.

In the first quarter 2026, cost of natural gas was $926 million compared to $674 million for the corresponding period in 2025. The increase reflects higher gas cost recovery as a result of a 38.0% increase in natural gas prices.

The following table details the volumes of natural gas sold during all periods presented:

---

| | | | |
|:---|:---|:---|:---|
| | **First Quarter** | **First Quarter** | **First Quarter** |
| | **2026** | **2025** | **2026 vs. 2025** |
| Gas distribution operations *(mmBtu in millions)* |  |  |  |
| &nbsp;&nbsp;Firm | **282** | 302 | **(6.6)%** |
| &nbsp;&nbsp;Interruptible | **23** | 23 | **—** |
| &nbsp;&nbsp;Total | **305** | 325 | **(6.2)%** |
| Gas marketing services *(mmBtu in millions)* |  |  |  |
| &nbsp;&nbsp;Firm | **27** | 29 | **(6.9)%** |
| &nbsp;&nbsp;Interruptible large commercial and industrial | **3** | 4 | **(25.0)** |
| &nbsp;&nbsp;Total | **30** | 33 | **(9.1)%** |

---

***Other Operations and Maintenance Expenses***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $27 | 8.5 |

---

In the first quarter 2026, other operations and maintenance expenses were $343 million compared to $316 million for the corresponding period in 2025. The increase was primarily due to a $20 million increase related to employee compensation and benefit expenses, a $7 million increase related to certain deferred expenses, a $7 million increase in expenses passed through to customers at gas distribution operations, and a $4 million increase related to expenses for gas mains, partially offset by an $18 million decrease in legal expenses.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Depreciation and Amortization***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $14 | 8.3 |

---

In the first quarter 2026, depreciation and amortization was $183 million compared to $169 million for the corresponding period in 2025. The increase was primarily due to additional plant in service related to continued investments at the natural gas distribution utilities.

***Taxes Other Than Income Taxes***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $8 | 8.2 |

---

In the first quarter 2026, taxes other than income taxes were $105 million compared to $97 million for the corresponding period in 2025. The increase was primarily due to an increase in revenue taxes as a result of higher natural gas revenues at Nicor Gas. Revenue taxes imposed on Nicor Gas are recoverable from its customers.

***Earnings from Equity Method Investments***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $7 | 17.9 |

---

In the first quarter 2026, earnings from equity method investments were $46 million compared to $39 million for the corresponding period in 2025. The increase was primarily due to higher revenue from short-term natural gas storage and borrowing services and prior period customer refunds, both at SNG. See Note 7 to the financial statements under "Southern Company Gas" in Item 8 of the Form 10-K and Note (E) to the Condensed Financial Statements under "Southern Company Gas" herein for additional information.

***Interest Expense, Net of Amounts Capitalized***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $13 | 14.1 |

---

In the first quarter 2026, interest expense, net of amounts capitalized was $105 million compared to $92 million for the corresponding period in 2025. The increase was primarily associated with higher average outstanding borrowings and an interest rate adjustment. See FINANCIAL CONDITION AND LIQUIDITY – "Sources of Capital" herein for additional information on borrowings.

***Income Taxes***

---

| | |
|:---|:---|
| First Quarter 2026 vs. First Quarter 2025 | First Quarter 2026 vs. First Quarter 2025 |
| *(change in millions)* | *(% change)* |
| $15 | 11.5 |

---

In the first quarter 2026, income taxes were $145 million compared to $130 million for the corresponding period in 2025. The increase was primarily due to higher pre-tax earnings.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Segment Information***

Operating revenues, operating expenses, and net income for each segment are provided in the table below. See Note (L) to the Condensed Financial Statements under "Southern Company Gas" herein for additional information.

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| | **2026** | **2026** | **2026** | **2025** | **2025** | **2025** |
| | **Operating<br>Revenues** | **Operating<br>Expenses** | **Net Income** | **Operating<br>Revenues** | **Operating<br>Expenses** | **Net Income** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **First Quarter** | **First Quarter** | **First Quarter** | **First Quarter** | **First Quarter** | **First Quarter** | **First Quarter** |
| &nbsp;&nbsp;Gas distribution operations | $**1900** | $**1368** | $**337** | $1570 | $1082 | $315 |
| &nbsp;&nbsp;Gas pipeline investments | **8** | **2** | **33** | 8 | 3 | 27 |
| &nbsp;&nbsp;Gas marketing services | **285** | **186** | **71** | 261 | 170 | 65 |
| &nbsp;&nbsp;All other | **2** | **3** | **6** | 4 | 2 | 11 |
| &nbsp;&nbsp;Intercompany eliminations | **(4)** | **(2)** | **—** | (4) | (1) |  |
| Consolidated | $**2191** | $**1557** | $**447** | $1839 | $1256 | $418 |

---

*Gas Distribution Operations*

The gas distribution operations segment is the largest component of Southern Company Gas' business and is subject to regulation and oversight by regulatory agencies in each of the states it serves. These agencies approve natural gas rates designed to provide Southern Company Gas with the opportunity to generate revenues to recover the cost of natural gas delivered to its customers and its fixed and variable costs, including depreciation, interest expense, operations and maintenance, taxes, and overhead costs, and to earn a reasonable return on its investments.

With the exception of Atlanta Gas Light, Southern Company Gas' second largest utility that operates in a deregulated natural gas market and has a straight-fixed-variable rate design that minimizes the variability of its revenues based on consumption, the earnings of the natural gas distribution utilities can be affected by customer consumption patterns that are a function of price levels for natural gas and general economic conditions that may impact customers' ability to pay for natural gas consumed. Southern Company Gas has various regulatory and other mechanisms, such as weather and revenue normalization mechanisms, that limit its exposure to changes in customer consumption, including weather changes within typical ranges in its natural gas distribution utilities' service territories. See Note 2 to the financial statements under "Southern Company Gas" in Item 8 of the Form 10-K for additional information.

In the first quarter 2026, net income increased $22 million, or 7.0%, as compared to the corresponding period in 2025, as described further below:

• Operating revenues increased $330 million primarily due to higher gas cost recovery and base rate increases. Gas costs recovered through natural gas revenues generally equal the amount expensed in cost of natural gas.

*•* Operating expenses increased $286 million primarily due to a $239 million increase in cost of natural gas as a result of higher natural gas prices compared to 2025, a $16 million increase related to employee compensation and benefit expenses, a $15 million increase in depreciation primarily due to additional plant in service related to continued investments at the natural gas distribution utilities, and a $7 million increase related to certain deferred expenses, partially offset by a $19 million decrease in legal expenses.

• Interest expense, net of amounts capitalized increased $9 million primarily due to higher average outstanding borrowings and an interst rate adjustment.

• Income taxes increased $12 million primarily as a result of higher pre-tax earnings.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

*Gas Pipeline Investments*

The gas pipeline investments segment consists primarily of joint ventures in natural gas pipeline investments including SNG and Dalton Pipeline. See Note (E) to the Condensed Financial Statements under "Southern Company Gas" herein for additional information.

*Gas Marketing Services*

The gas marketing services segment provides energy-related products and services to natural gas markets and participants in customer choice programs that were approved in various states to increase competition. These programs allow customers to choose their natural gas supplier while the local distribution utility continues to provide distribution and transportation services. Gas marketing services is weather sensitive and uses a variety of hedging strategies, such as weather derivative instruments and other risk management tools, to partially mitigate potential weather impacts.

*All Other*

All other includes a renewable natural gas business, AGL Services Company, and Southern Company Gas Capital, as well as various corporate operating expenses that are not allocated to the reportable segments and interest income (expense) associated with affiliate financing arrangements. See Note 15 to the financial statements in Item 8 of the Form 10-K for additional information.

**FUTURE EARNINGS POTENTIAL**

Each Registrant's results of operations are not necessarily indicative of its future earnings potential. The level of the Registrants' future earnings depends on numerous factors that affect the opportunities, challenges, and risks of the Registrants' primary businesses of selling electricity and/or distributing natural gas, as described further herein. The Registrants are unable to predict changes in law, regulations, regulatory guidance, legal interpretations, policy positions, and implementation actions that may occur in the future.

For the traditional electric operating companies, these factors include the ability to maintain constructive regulatory environments that allow for the timely recovery of prudently-incurred costs during a time of increasing customer affordability concerns and costs, including those related to projected long-term demand growth, stringent environmental standards, including CCR rules, safety, system reliability and resiliency, fuel, restoration following major storms, and capital expenditures, including constructing new electric generating plants, extending the retirement dates of certain fossil fuel plants, and expanding and improving the transmission and distribution systems; continued customer growth; and the trends of an uncertain inflationary environment and reduced electricity usage per customer, especially in residential and commercial markets.

Earnings in the electricity business will also depend upon maintaining and growing sales and pricing of large customers such that incremental costs are met with adequate incremental revenues, considering, among other things, recent trends driving projected growth in electricity consumption including the increasing digitization of the economy and growth in data centers, an increase in industrial activity in the Southern Company system's electric service territory, and continued electrification of transportation. Historically, the traditional electric operating companies have entered into large load contracts that support economic development and benefit existing customers; since 2023, the traditional electric operating companies have contracts with new data centers and other large load customers covering approximately 11 gigawatts of electric load, with each contract individually representing a maximum electric load greater than 100 MWs, that have been signed by the parties without material contingencies and/or reviewed by the state regulatory commissions. These new contracts fully ramp up over several years after commencement of service. Some of these contracts are already in effect. Service under the contracts is expected to begin through 2028. The contracts contain various terms and conditions, such as minimum duration, minimum bill provisions, contribution by the customer to local construction costs, termination payment requirements, and financial security, designed to generate adequate incremental revenues associated with incremental costs to serve these customers. These growth opportunities may be affected by a variety of factors, such as energy efficiency, changes in technology, reliability and operational factors, customer demand, and government

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

policies, which could increase or decrease the pace of growth associated with these opportunities. In addition, these opportunities present risks such as capital access and cost recovery risks. See Note 2 to the financial statements under "Georgia Power – Integrated Resource Plans" in Item 8 of the Form 10-K for additional information regarding Georgia Power's related regulatory proceedings.

The level of future earnings for Southern Power's competitive wholesale electric business depends on numerous factors including the parameters of the wholesale market and the efficient operation of its wholesale generating assets; Southern Power's ability to execute its growth strategy through the development, construction, or acquisition of generating facilities and other energy projects while containing costs; regulatory matters; customer creditworthiness; total electric generating capacity available in Southern Power's market areas; Southern Power's ability to successfully remarket capacity as current contracts expire; renewable portfolio standards; continued availability of federal and state ITCs and PTCs under current and future tax legislation and U.S. Treasury guidance; transmission constraints; cost of generation from units within the Southern Company power pool; and operational limitations. See MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Income Tax Matters" in Item 7 of the Form 10-K for information regarding the IRA's expansion of the availability of federal ITCs and PTCs and the OBBB's restrictions on federal ITCs and PTCs. Also see Note (K) to the Condensed Financial Statements under "Southern Power" herein for information regarding construction projects.

The level of future earnings for Southern Company Gas' primary business of distributing natural gas and its complementary businesses in the gas pipeline investments and gas marketing services sectors depends on numerous factors. These factors include the natural gas distribution utilities' ability to maintain constructive regulatory environments that allow for the timely recovery of prudently-incurred costs, including those related to projected long-term demand growth, safety, system reliability and resiliency, natural gas, and capital expenditures, including expanding and improving the natural gas distribution systems; the completion and subsequent operation of ongoing infrastructure and other construction projects; customer creditworthiness; and certain policies to limit the use of natural gas, such as the potential in Illinois and across certain other parts of the United States for state or municipal bans on the use of natural gas or policies designed to promote electrification. The volatility of natural gas prices has an impact on Southern Company Gas' customer rates, its long-term competitive position against other energy sources, and the ability of Southern Company Gas' gas marketing services business to capture value from locational and seasonal spreads. Additionally, changes in commodity prices, primarily driven by tight gas supplies, geopolitical events, and diminished gas production, subject a portion of Southern Company Gas' operations to earnings variability and may result in higher natural gas prices. Additional economic factors may contribute to this environment. The demand for natural gas may increase, including from large customers, which may cause natural gas prices to rise and drive higher volatility in the natural gas markets on a longer-term basis. Alternatively, a significant drop in oil and natural gas prices could lead to a consolidation of natural gas producers or reduced levels of natural gas production.

Earnings for both the electricity and natural gas businesses are subject to a variety of other factors. These factors include weather; competition; developing new and maintaining existing energy contracts and associated load requirements with wholesale customers; demand growth from data centers and other large load customers and associated load and operating requirements; customer energy conservation practices; the use of alternative energy sources by customers; government incentives to reduce overall energy usage; fuel, labor, and material prices in an environment of heightened inflation and material and labor supply chain disruptions; and the price elasticity of demand. Demand for electricity and natural gas in the Registrants' service territories is primarily driven by the pace of economic growth or decline that may be affected by changes in regional and global economic conditions and could be influenced by changes in technology, public policy, utility efficiency programs, and customer behavior. Geopolitical conflicts (such as the current Middle East conflict) and significant changes in fiscal, monetary, or trade policies could affect actual economic activity and historical economic relationships in ways not anticipated in economic outlooks or Southern Company system plans. Additionally, changes in inflation, interest rates, and credit market conditions could affect the cost of doing business. All of these factors may impact future earnings. See RESULTS OF OPERATIONS herein for information on energy sales in the Southern Company system's service territory during the first three months of 2026.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

As part of its ongoing effort to adapt to changing market conditions, Southern Company continues to evaluate and consider a wide array of potential business strategies. These strategies may include business combinations, partnerships, joint ventures, and acquisitions involving other utility or non-utility businesses or properties, disposition of, or the sale of interests in, certain assets or businesses, internal restructuring, or some combination thereof. Furthermore, Southern Company may engage in new business ventures that arise from competitive and regulatory changes in the utility industry. Pursuit of any of the above strategies, or any combination thereof, may significantly affect the business operations, risks, and financial condition of Southern Company. In addition, Southern Power and Southern Company Gas regularly consider and evaluate joint development arrangements as well as acquisitions and/or dispositions of businesses and assets as part of their business strategies. See Note 15 to the financial statements in Item 8 of the Form 10-K, Note (K) to the Condensed Financial Statements herein, and "Construction Programs" herein for additional information.

For additional information relating to these issues, see RISK FACTORS in Item 1A and MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL in Item 7 of the Form 10-K.

**Environmental Matters**

See MANAGEMENT'S DISCUSSION AND ANALYSIS *–* FUTURE EARNINGS POTENTIAL *–* "Environmental Matters" and – FINANCIAL CONDITION AND LIQUIDITY *–* "Cash Requirements" in Item 7 and Note 3 to the financial statements under "Environmental Remediation" and Note 6 to the financial statements in Item 8 of the Form 10-K, as well as Note (C) to the Condensed Financial Statements under "General Litigation Matters" and "Environmental Remediation" herein, for additional information.

***Environmental Laws and Regulations***

*Coal Combustion Residuals*

On April 13, 2026, the EPA published a proposed rule that, if finalized, would make several revisions to the existing federal CCR regulations, including rescinding CCR management unit provisions. The proposal also provides additional clarity around the scope of beneficial use and provides for site-specific groundwater, closure, and corrective action flexibilities under federal or state CCR permits. The ultimate outcome of this matter cannot be determined at this time.

Based on compliance requirements for closure and monitoring of landfills and surface impoundments pursuant to state and federal CCR rules, the traditional electric operating companies have periodically updated, and expect to continue periodically updating, their related cost estimates and ARO liabilities for each CCR unit as additional information related to compliance monitoring, closure methodologies and strategies, schedules, and/or costs becomes available. Some of these updates have been, and future updates may be, material. The cost estimates for Alabama Power are based on closure-in-place for all surface impoundments. The cost estimates for Georgia Power and Mississippi Power are based on a combination of closure-in-place for some surface impoundments and closure by removal for others. Additionally, the closure designs and plans in the States of Alabama and Georgia are subject to approval by environmental regulatory agencies. Absent continued recovery of ARO costs through regulated rates, results of operations, cash flows, and financial condition for Southern Company and the traditional electric operating companies could be materially impacted.

**Regulatory Matters**

See Note 2 to the financial statements in Item 8 of the Form 10-K, OVERVIEW – "Recent Developments" herein, and Note (B) to the Condensed Financial Statements herein for a discussion of regulatory matters related to Alabama Power, Georgia Power, Mississippi Power, and Southern Company Gas, including items that could impact the applicable Registrants' future earnings, cash flows, and/or financial condition.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

**Construction Programs**

The Southern Company system strategy continues to include developing and constructing new electric generating and battery energy storage facilities, expanding and improving the electric transmission and electric and natural gas distribution systems, and undertaking projects to comply with environmental laws and regulations.

The traditional electric operating companies are engaged in continuous construction programs to accommodate existing and estimated future loads on their respective systems. Major generation construction projects are subject to state PSC approval in order to be included in retail rates, through which the traditional electric operating companies recover their approved investment and a return on investment. See Note 2 to the financial statements under "Georgia Power – Integrated Resource Plans" in Item 8 of the Form 10-K and Note (B) to the Condensed Financial Statements under "Georgia Power – Construction" herein for information regarding Georgia Power's current construction projects.

Southern Power's construction program includes the Millers Branch solar project, the Kay, Grant, Grant Plains, Wake, and Bethel wind repowering projects, and the incremental capacity upgrade projects at the Franklin and Wansley natural gas facilities. The repowering projects result in accelerated depreciation related to the equipment being replaced that will continue until the projects' completion dates, which are projected to occur through the third quarter 2027. At March 31, 2026, the remaining pre-tax accelerated depreciation is projected to total approximately $335 million in 2026 and $100 million in 2027. The ultimate impact of these matters cannot be determined at this time. See Note (K) to the Condensed Financial Statements under "Southern Power" herein and Note 5 to the financial statements under "Depreciation and Amortization – Southern Power" in Item 8 of the Form 10-K for additional information.

Southern Company Gas is engaged in various infrastructure improvement programs designed to update or expand the natural gas distribution systems of the natural gas distribution utilities to improve reliability and resiliency, reduce emissions, and meet operational flexibility and growth. The natural gas distribution utilities recover their approved investment and a return on investment associated with these infrastructure programs through their regulated rates, as approved by their applicable state regulatory agency. See Note 2 to the financial statements under "Southern Company Gas – Infrastructure Replacement Programs and Capital Projects" in Item 8 of the Form 10-K for additional information on Southern Company Gas' construction program.

See FINANCIAL CONDITION AND LIQUIDITY – "Cash Requirements" herein for additional information regarding the Registrants' capital requirements for their construction programs.

**Income Tax Matters**

See Note (G) to the Condensed Financial Statements herein and MANAGEMENT'S DISCUSSION AND ANALYSIS – FUTURE EARNINGS POTENTIAL – "Income Tax Matters" in Item 7 of the Form 10-K for additional information.

***Federal Tax Legislation***

The OBBB modified certain renewable energy tax incentives and added eligibility restrictions for certain credits related to renewable facilities that are controlled or influenced by, or that receive material assistance from, a prohibited foreign entity.

The U.S. Treasury issued a notice on February 12, 2026, which provides interim safe harbors related to the evaluation of material assistance from a prohibited foreign entity. Southern Company is assessing this guidance and its potential implications for eligibility of technology-neutral tax credits for renewable projects for which construction begins in 2026. The U.S. Treasury has indicated that additional guidance and regulations are expected later in 2026. The ultimate outcome of this matter cannot be determined at this time.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Corporate Alternative Minimum Tax***

On February 18, 2026, the U.S. Treasury issued guidance regarding the calculation of the CAMT. The CAMT, enacted as part of the IRA, generally imposes a 15% minimum tax on a corporation's adjusted financial statement income (AFSI) for taxable years beginning after December 31, 2022, subject to applicable thresholds and adjustments under the Internal Revenue Code. The guidance includes provisions that, in certain circumstances, would permit taxpayers to reflect certain repair-related tax deductions as reductions to AFSI for purposes of computing CAMT.

Regulated utilities industry participants have engaged with the U.S. Treasury regarding the interaction of repair-related costs, regulatory accounting, and the CAMT framework. Southern Company is evaluating the guidance, including its applicability to Southern Company's specific facts and circumstances. If applicable, the guidance could reduce Southern Company's potential CAMT exposure by permitting the inclusion of certain repair-related deductions in the computation of AFSI, which could affect Southern Company's income tax expense and cash tax position in future periods. Southern Company will continue to assess the impact of the guidance and any further administrative guidance or regulatory developments.

**General Litigation and Other Matters**

The Registrants are involved in various matters being litigated and/or regulatory and other matters that could affect future earnings, cash flows, and/or financial condition. The ultimate outcome of such pending or potential litigation against each Registrant and any subsidiaries or regulatory and other matters cannot be determined at this time; however, for current proceedings and/or matters not specifically reported herein or in Notes (B) and (C) to the Condensed Financial Statements herein, management does not anticipate that the ultimate liabilities, if any, arising from such current proceedings and/or matters would have a material effect on such Registrant's financial statements. See Notes (B) and (C) to the Condensed Financial Statements for a discussion of various contingencies, including matters being litigated, regulatory matters, and other matters which may affect future earnings potential.

**ACCOUNTING POLICIES**

See MANAGEMENT'S DISCUSSION AND ANALYSIS – ACCOUNTING POLICIES in Item 7 of the Form 10-K for a complete discussion of the Registrants' critical accounting policies and estimates, as well as recently issued accounting standards.

**Application of Critical Accounting Policies and Estimates**

The Registrants prepare their financial statements in accordance with GAAP. Significant accounting policies are described in the notes to the financial statements in Item 8 of the Form 10-K. In the application of these policies, certain estimates are made that may have a material impact on the Registrants' results of operations and related disclosures. Different assumptions and measurements could produce estimates that are significantly different from those recorded in the financial statements.

**FINANCIAL CONDITION AND LIQUIDITY**

**Overview**

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY *–* "Overview" in Item 7 of the Form 10-K for additional information. The financial condition of each Registrant remained stable at March 31, 2026. The Registrants intend to continue to monitor their access to short-term and long-term capital markets as well as their bank credit arrangements to meet future capital and liquidity needs. See "Cash Requirements," "Sources of Capital," and "Financing Activities" herein for additional information.

At the end of the first quarter 2026, the market price of Southern Company's common stock was $96.52 per share (based on the closing price as reported on the NYSE) and the book value was $32.93 per share, representing a market-to-book ratio of 293%, compared to $87.20, $32.18, and 271%, respectively, at the end of 2025. Southern

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

Company's common stock dividend for the first quarter 2026 was $0.74 per share compared to $0.72 per share in the first quarter 2025.

**Cash Requirements**

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Cash Requirements" in Item 7 of the Form 10-K for a description of the Registrants' significant cash requirements.

The Registrants' significant cash requirements include estimated capital expenditures associated with their construction programs. The construction programs are subject to periodic review and revision, and actual construction costs may vary from these estimates because of numerous factors. These factors include: changes in business conditions; changes in load projections; changes in environmental laws and regulations; the outcome of any legal challenges to environmental rules; changes in electric generating plants, including unit retirements and replacements and adding or changing fuel sources at existing electric generating units or extending the retirement dates of certain generating plants, to meet regulatory requirements; changes in FERC rules and regulations; state regulatory agency approvals; changes in the expected environmental compliance program; changes in legislation, regulation, and/or tariff policy; the cost, availability, and efficiency of construction labor, equipment, and materials; project scope and design changes; abnormal weather; delays in construction due to judicial or regulatory action; storm impacts; and the cost of capital. In addition, with respect to the traditional electric operating companies and the natural gas distribution utilities, there can be no assurance that any costs related to capital expenditures and AROs will be fully recovered. Additionally, expenditures associated with Southern Power's planned acquisitions may vary due to market opportunities and the execution of its growth strategy.

During the first quarter 2026, Southern Power committed to development projects to upgrade certain turbines at the Franklin and Wansley natural gas facilities. The aggregate construction costs for these projects are expected to be between $660 million and $725 million. See Note (K) to the Condensed Financial Statements under "Southern Power – Natural Gas Turbine Upgrade Projects" herein for additional information regarding Southern Power's construction projects.

Long-term debt maturities and the interest payable on long-term debt each represent a significant cash requirement for the Registrants. See "Financing Activities" herein for information on changes in the Registrants' long-term debt balances since December 31, 2025.

Fuel and purchased power costs represent a significant component of funding ongoing operations for the traditional electric operating companies and Southern Power. Fuel costs include purchases of coal (for the traditional electric operating companies) and natural gas (for the traditional electric operating companies and Southern Power), as well as the related transportation and storage. Since December 31, 2025, Georgia Power has entered into additional commitments for natural gas primarily related to its construction of generation projects. As a result, Southern Company's and Georgia Power's estimated costs for fuel commitments at March 31, 2026 increased by approximately $25 million for 2027, $150 million per year for 2028 through 2030, and $2.5 billion thereafter. See Note (B) to the Condensed Financial Statements under "Georgia Power – Construction" herein for additional information regarding Georgia Power's current construction projects.

**Sources of Capital**

See MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Sources of Capital" in Item 7 of the Form 10-K for additional information. Southern Company intends to meet its future capital needs through operating cash flows, borrowings from financial institutions, and debt, hybrid, and/or equity issuances. Equity capital can be provided from any combination of Southern Company's stock plans, private placements, or public offerings.

The Subsidiary Registrants plan to obtain the funds to meet their future capital needs from sources similar to those they used in the past, which were primarily from operating cash flows, external securities issuances, borrowings from financial institutions, and equity contributions from Southern Company. In addition, Alabama Power and Georgia Power plan to utilize borrowings from the FFB. Operating cash flows provide a substantial portion of the

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

Registrants' cash needs. See Note (F) to the Condensed Financial Statements under "DOE Loan Guarantee Borrowings" herein for additional information.

The amount, type, and timing of any financings in 2026, as well as in subsequent years, will be contingent on investment opportunities and the Registrants' capital requirements and will depend upon prevailing market conditions, regulatory approvals (for certain of the Subsidiary Registrants), and other factors. See "Cash Requirements" and "Financing Activities" herein for additional information.

By regulation, Nicor Gas is restricted, up to its retained earnings balance, in the amount it can dividend or loan to affiliates and is not permitted to make money pool loans to affiliates. At March 31, 2026, the amount of subsidiary retained earnings restricted to dividend totaled $2.0 billion. This restriction did not impact Southern Company Gas' ability to meet its cash obligations, nor does management expect such restriction to materially impact Southern Company Gas' ability to meet its currently anticipated cash obligations.

Certain Registrants' current liabilities frequently exceed their current assets because of long-term debt maturities and the periodic use of short-term debt as a funding source, as well as significant seasonal fluctuations in cash needs. The Registrants generally plan to refinance long-term debt as it matures. The following table shows the amount by which current liabilities exceeded current assets at March 31, 2026 for the applicable Registrants:

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| | | | | |
|:---|:---|:---|:---|:---|
| **At March 31, 2026** | **Southern<br>Company** | **Georgia<br>Power** | **Southern<br>Power** | **Southern<br>Company<br>Gas** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| Current liabilities in excess of current assets | $5357 | $2519 | $529 | $645 |

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The Registrants believe the need for working capital can be adequately met by utilizing operating cash flows, as well as commercial paper, lines of credit, and short-term bank notes, as market conditions permit. In addition, under certain circumstances, the Subsidiary Registrants may utilize equity contributions and/or loans from Southern Company.

***Bank Credit Arrangements***

At March 31, 2026, unused committed credit arrangements with banks were as follows:

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| | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **At March 31, 2026** | **Southern<br>Company<br>parent** | **Alabama**<br>&nbsp;&nbsp;&nbsp;&nbsp;**Power**<sup>(a)</sup> | **Georgia**<br>&nbsp;&nbsp;&nbsp;&nbsp;**Power**<sup>(b)</sup> | **Mississippi<br>Power** | **Southern**<br>&nbsp;&nbsp;&nbsp;&nbsp;**Power**<sup>(c)</sup> | **Southern**<br>**Company**<br>&nbsp;&nbsp;&nbsp;&nbsp;**Gas**<sup>(d)</sup> | **SEGCO** | **Southern<br>Company** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| Unused committed credit | $2999 | $1365 | $2042 | $275 | $600 | $1598 | $30 | $8909 |

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(a)Includes $15 million at Alabama Property Company, a wholly-owned subsidiary of Alabama Power. Alabama Power is not party to this arrangement.

(b)Georgia Power had $26 million of letters of credit outstanding under an uncommitted letter of credit facility at March 31, 2026.

(c)At March 31, 2026, Southern Power also had two continuing letters of credit facilities for standby letters of credit, of which $21 million was unused. In addition, Southern Power Company had $23 million of letters of credit outstanding under an uncommitted letter of credit facility at March 31, 2026. Southern Power's subsidiaries are not parties to its bank credit arrangements or letter of credit facilities.

(d)Includes $798 million and $800 million at Southern Company Gas Capital and Nicor Gas, respectively.

Subject to applicable market conditions, the Registrants, Nicor Gas, and SEGCO expect to renew or replace their bank credit arrangements as needed, prior to expiration. In connection therewith, the Registrants, Nicor Gas, and SEGCO may extend the maturity dates and/or increase or decrease the lending commitments thereunder.

A portion of the unused credit with banks is allocated to provide liquidity support to certain revenue bonds of the traditional electric operating companies and the commercial paper programs of the Registrants, Nicor Gas, and SEGCO. At March 31, 2026, outstanding variable rate demand revenue bonds of the traditional electric operating companies with allocated liquidity support totaled approximately $1.5 billion (comprised of approximately $796 million at Alabama Power, $667 million at Georgia Power, and $58 million at Mississippi Power). In addition, at

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

March 31, 2026, Alabama Power and Georgia Power had approximately $160 million and $325 million, respectively, of fixed rate revenue bonds outstanding that are required to be remarketed within the next 12 months. Alabama Power's $160 million of fixed rate revenue bonds are classified as securities due within one year on its balance sheets as they are not covered by long-term committed credit. All other variable rate demand revenue bonds and fixed rate revenue bonds required to be remarketed within the next 12 months are classified as long-term debt on the balance sheets as a result of available long-term committed credit.

See Note 8 to the financial statements in Item 8 of the Form 10-K and Note (F) to the Condensed Financial Statements under "Bank Credit Arrangements" herein for additional information.

***Short-term Borrowings***

The Registrants, Nicor Gas, and SEGCO make short-term borrowings primarily through commercial paper programs that have the liquidity support of the committed bank credit arrangements described above. Southern Power's subsidiaries are not issuers or obligors under its commercial paper program. Commercial paper and short-term bank term loans are included in notes payable in the balance sheets. Details of the Registrants' short-term borrowings were as follows:

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| | | | | | |
|:---|:---|:---|:---|:---|:---|
| | **Short-term Debt at**<br>**March 31, 2026** | **Short-term Debt at**<br>**March 31, 2026** | **Short-term Debt During the Period**<sup>(\*)</sup> | **Short-term Debt During the Period**<sup>(\*)</sup> | **Short-term Debt During the Period**<sup>(\*)</sup> |
| | **Amount<br>Outstanding** | **Weighted<br>Average<br>Interest<br>Rate** | **Average<br>Amount<br>Outstanding** | **Weighted<br>Average<br>Interest<br>Rate** | **Maximum<br>Amount<br>Outstanding** |
| | *(in millions)* | | *(in millions)* | | *(in millions)* |
| Southern Company | $1673 | 4.1% | $2022 | 3.9% | $3291 |
| Alabama Power | 30 | 3.8 | 10 | 3.8 | 75 |
| Georgia Power | 225 | 4.2 | 586 | 4.0 | 1000 |
| Mississippi Power | 32 | 4.0 | 15 | 3.9 | 64 |
| Southern Power | 160 | 4.1 | 149 | 3.9 | 225 |
| Southern Company Gas: |  |  |  |  |  |
| &nbsp;&nbsp;&nbsp;Southern Company Gas Capital | $255 | 4.1% | $220 | 3.9% | $358 |
| &nbsp;&nbsp;&nbsp;Nicor Gas |  |  | 72 | 3.8 | 216 |
| Southern Company Gas Total | $255 | 4.1% | $292 | 3.9% |  |

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(\*)Average and maximum amounts are based upon daily balances during the three-month period ended March 31, 2026.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

**Analysis of Cash Flows**

Net cash flows provided from (used for) operating, investing, and financing activities for the three months ended March 31, 2026 and 2025 are presented in the following table:

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| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Net cash provided from<br>(used for):** | **Southern<br>Company** | **Alabama<br>Power** | **Georgia<br>Power** | **Mississippi<br>Power** | **Southern<br>Power** | **Southern<br>Company<br>Gas** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| **Three Months Ended March 31, 2026** | **Three Months Ended March 31, 2026** |  |  |  |  |  |
| Operating activities | $**1226** | $**301** | $**380** | $**(49)** | $**193** | $**808** |
| Investing activities | **(3421)** | **(509)** | **(2289)** | **(106)** | **(129)** | **(360)** |
| Financing activities | **1542** | **(83)** | **1874** | **148** | **(97)** | **(321)** |
| **Three Months Ended March 31, 2025** | **Three Months Ended March 31, 2025** |  |  |  |  |  |
| Operating activities | $1250 | $227 | $305 | $(11) | $146 | $687 |
| Investing activities | (2834) | (591) | (1719) | (44) | (161) | (321) |
| Financing activities | 2815 | 718 | 1679 | 87 | 39 | (323) |

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Fluctuations in cash flows from financing activities vary from year to year based on capital needs and the maturity or redemption of securities.

***Southern Company***

Net cash provided from operating activities decreased $24 million for the three months ended March 31, 2026 as compared to the corresponding period in 2025 primarily due to the timing of vendor payments, partially offset by higher natural gas cost recovery.

The net cash used for investing activities for the three months ended March 31, 2026 was primarily related to the Subsidiary Registrants' construction programs.

The net cash provided from financing activities for the three months ended March 31, 2026 was primarily related to net issuances of long-term debt, an increase in notes payable, and issuances of common stock through the settlement of forward sale contracts, partially offset by common stock dividend payments. See Note (F) to the Condensed Financial Statements under "Equity Distribution Agreement" herein for additional information.

***Alabama Power***

Net cash provided from operating activities increased $74 million for the three months ended March 31, 2026 as compared to the corresponding period in 2025 primarily due to customer refunds in 2025 associated with a nuclear fuel disposal cost award and the timing of customer receivable collections, partially offset by the timing of vendor payments. See Note 3 to the financial statements under "Nuclear Fuel Disposal Costs" in Item 8 of the Form 10-K for additional information.

The net cash used for investing activities for the three months ended March 31, 2026 was primarily related to gross property additions.

The net cash used for financing activities for the three months ended March 31, 2026 was primarily related to common stock dividend payments and repayment of bank term loans, partially offset by capital contributions from Southern Company and an increase in commercial paper borrowings.

***Georgia Power***

Net cash provided from operating activities increased $75 million for the three months ended March 31, 2026 as compared to the corresponding period in 2025 primarily due to the timing of vendor payments and storm restoration costs, partially offset by an increase in charitable donations and the timing of materials and supplies purchases. See

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

Note 2 to the financial statements under "Georgia Power – Storm Damage Recovery" in Item 8 of the Form 10-K for additional information relating to storm restoration costs.

The net cash used for investing activities for the three months ended March 31, 2026 was primarily related to gross property additions.

The net cash provided from financing activities for the three months ended March 31, 2026 was primarily related to borrowings from the FFB and capital contributions from Southern Company, partially offset by common stock dividend payments. See Note (F) to the Condensed Financial Statements under "DOE Loan Guarantee Borrowings" herein for additional information.

***Mississippi Power***

Net cash used for operating activities increased $38 million for the three months ended March 31, 2026 as compared to the corresponding period in 2025 primarily due to the timing of vendor payments and the timing of fossil fuel stock purchases.

The net cash used for investing activities for the three months ended March 31, 2026 was primarily related to gross property additions.

The net cash provided from financing activities for the three months ended March 31, 2026 was primarily related to capital contributions from Southern Company, the issuance of senior notes, and an increase in commercial paper borrowings, partially offset by common stock dividend payments.

***Southern Power***

Net cash provided from operating activities increased $47 million for the three months ended March 31, 2026 as compared to the corresponding period in 2025 primarily due to an increase in wholesale revenues, driven by higher market prices of energy, and the timing of customer receivable collections, partially offset by the timing of vendor payments.

The net cash used for investing activities for the three months ended March 31, 2026 was primarily related to ongoing construction activities. See Note (K) to the Condensed Financial Statements under "Southern Power" herein for additional information.

The net cash used for financing activities for the three months ended March 31, 2026 was primarily related to common stock dividend payments and net distributions to noncontrolling interests, partially offset by an increase in commercial paper borrowings.

***Southern Company Gas***

Net cash provided from operating activities increased $121 million for the three months ended March 31, 2026 as compared to the corresponding period in 2025 primarily due to higher natural gas cost recovery and timing of customer receivable collections as a result of weather impacts, partially offset by lower natural gas volumes and prices and the timing of vendor payments.

The net cash used for investing activities for the three months ended March 31, 2026 was primarily related to construction of transmission and distribution assets recovered through base rates.

The net cash used for financing activities for the three months ended March 31, 2026 was primarily related to a reduction in commercial paper borrowings and common stock dividend payments.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

**Significant Balance Sheet Changes**

***Southern Company***

Significant balance sheet changes for the three months ended March 31, 2026 included:

• an increase of $1.7 billion in total property, plant, and equipment primarily related to the Subsidiary Registrants' construction programs;

• an increase of $1.0 billion in total stockholders' equity primarily related to net income and issuances of common stock largely through the settlement of forward sale contracts, partially offset by common stock dividend payments;

• an increase of $980 million in long-term debt (including securities due within one year) primarily due to the issuance of senior notes and borrowings from the FFB, partially offset by the redemption of junior subordinated notes;

• an increase of $951 million in notes payable primarily due to increases in commercial paper borrowings and short-term bank debt;

• a decrease of $801 million in accounts payable primarily related to the timing of vendor payments;

• a decrease of $658 million in cash and cash equivalents, as reflected in the statements of cash flows and discussed further under "Analysis of Cash Flows – Southern Company" herein; and

• a decrease of $657 million in accrued compensation primarily due to the timing of payments.

See "Financing Activities" and Note (F) to the Condensed Financial Statements under "Equity Distribution Agreement" and "DOE Loan Guarantee Borrowings" herein for additional information.

***Alabama Power***

Significant balance sheet changes for the three months ended March 31, 2026 included:

• an increase of $350 million in common stockholder's equity primarily due to net income and capital contributions from Southern Company, partially offset by dividends paid to Southern Company;

• a decrease of $291 million in cash and cash equivalents, as reflected in the statements of cash flows and discussed further under "Analysis of Cash Flows – Alabama Power" herein; and

• a decrease of $225 million in other accounts payable primarily due to the timing of vendor payments.

***Georgia Power***

Significant balance sheet changes for the three months ended March 31, 2026 included:

• an increase of $1.6 billion in total property, plant, and equipment primarily related to the construction of generation, transmission, and distribution facilities;

• an increase of $1.5 billion in common stockholder's equity primarily due to capital contributions from Southern Company and net income, partially offset by dividends paid to Southern Company;

• an increase of $943 million in long-term debt (including securities due within one year) primarily due to net borrowings from the FFB;

• a decrease of $430 million in accounts payable primarily related to the timing of vendor payments; and

• a decrease of $352 million in accrued taxes primarily due to payments for municipal franchise fees and property taxes.

See "Financing Activities – Georgia Power" and Notes (B) and (F) to the Condensed Financial Statements under "Georgia Power – Construction" and "DOE Loan Guarantee Borrowings," respectively, herein for additional information.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Mississippi Power***

Significant balance sheet changes for the three months ended March 31, 2026 included:

• an increase of $102 million in common stockholder's equity related to capital contributions from Southern Company and net income, partially offset by dividends paid to Southern Company;

• an increase of $74 million in long-term debt (including securities due within one year) primarily due to the issuance of senior notes;

• a decrease of $73 million in accrued taxes primarily due to the payment of ad valorem taxes;

• an increase of $32 million in notes payable primarily due to commercial paper borrowings; and

• an increase of $27 million in total property, plant, and equipment primarily related to the construction of transmission and distribution facilities.

See "Financing Activities – Mississippi Power" herein for additional information.

***Southern Power***

Significant balance sheet changes for the three months ended March 31, 2026 included:

• a decrease of $179 million in total property, plant, and equipment primarily due to the continued depreciation of assets, partially offset by the continued construction of the wind repowering projects;

• a decrease of $127 million in total stockholders' equity primarily due to dividends paid to Southern Company, net distributions to noncontrolling interests, and net loss; and

• an increase of $46 million in other receivables primarily related to the transfer of tax credits generated in the first quarter 2026, which were previously allocated to the SP Wind tax equity partners in 2025.

See Note (K) to the Condensed Financial Statements under "Southern Power – Wind Repowering Projects" herein and Note 15 to the financial statements under "Southern Power – Purchase of Renewable Facility Interests" in Item 8 of the Form 10-K for additional information.

***Southern Company Gas***

Significant balance sheet changes for the three months ended March 31, 2026 included:

• an increase of $306 million in common stockholder's equity primarily related to net income, partially offset by dividends paid to Southern Company;

• a decrease of $251 million in natural gas for sale primarily due to seasonality;

• a decrease of $183 million in total accounts payable primarily due to lower natural gas volumes and prices and the timing of vendor payments;

• an increase of $182 million in total property, plant, and equipment primarily related to the construction of transmission and distribution assets;

• a decrease of $170 million in notes payable due to a reduction in commercial paper borrowings;

• an increase of $122 million in cash and cash equivalents, as reflected in the statements of cash flows and discussed further under "Analysis of Cash Flows – Southern Company Gas" herein; and

• an increase of $104 million in temporary LIFO liquidation due to use of stored natural gas.

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

**Financing Activities**

The following table outlines long-term debt financing activities for the first three months of 2026:

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| | | | |
|:---|:---|:---|:---|
| | **Issuances and Reofferings** | **Issuances and Reofferings** | **Maturities and Redemptions** |
|<br>**Company** | **Senior<br>Notes** | **Other Long-<br>Term Debt** | **Other Long-**<br>&nbsp;&nbsp;&nbsp;&nbsp;**Term Debt**<sup>(a)</sup> |
| | *(in millions)* | *(in millions)* | *(in millions)* |
| Southern Company parent | $— | $1300 | $1250 |
| Alabama Power |  |  | 46 |
| Georgia Power |  | 1016 | 28 |
| Mississippi Power | 75 |  |  |
| Other |  |  | 1 |
| Elimination<sup>(b)</sup> |  |  | (3) |
| Southern Company | $75 | $2316 | $1322 |

---

(a)Includes reductions in finance lease obligations resulting from cash payments under finance leases and, for Georgia Power, principal amortization payments totaling $21 million for FFB borrowings. See Note 8 to the financial statements under "Long-term Debt – DOE Loan Guarantee Borrowings" in Item 8 of the Form 10-K for additional information.

(b)Represents reductions in affiliate finance lease obligations at Georgia Power, which are eliminated in Southern Company's consolidated financial statements.

Except as otherwise described herein, the Registrants used the proceeds of debt issuances for their redemptions and maturities shown in the table above, to repay short-term indebtedness, and for general corporate purposes, including working capital. The Subsidiary Registrants also used the proceeds for their construction programs.

In addition to any financings that may be necessary to meet capital requirements and contractual obligations, the Registrants plan to continue, when economically feasible, a program to retire higher-cost securities and replace these obligations with lower-cost capital if market conditions permit.

***Southern Company***

During the first three months of 2026, Southern Company issued approximately 8.1 million shares of common stock primarily through forward sale contract settlements and employee equity compensation plans. Proceeds from settlements of the forward sale contracts totaled approximately $506 million. Also during the first three months of 2026, Southern Company entered into additional forward sale contracts for the issuance of shares of common stock that may be settled through March 2028. See Note (F) to the Condensed Financial Statements under "Equity Distribution Agreement" herein for additional information.

In January 2026, Southern Company redeemed all $1.25 billion aggregate principal amount of its Series 2020B 4.00% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due January 15, 2051.

In January 2026, Southern Company borrowed $100 million pursuant to a short-term uncommitted bank credit arrangement bearing interest at a floating rate.

In March 2026, Southern Company issued $1.3 billion aggregate principal amount of Series 2026A 6.00% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due April 1, 2058.

***Alabama Power***

In March 2026, Alabama Power repaid at maturity its three bank term loan agreements with an aggregate principal amount of $45 million.

------

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**MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION**

**AND RESULTS OF OPERATIONS (Continued)**

***Georgia Power***

In February 2026, Georgia Power borrowed $250 million pursuant to a short-term uncommitted bank credit arrangement which is payable on demand, following specified notice by the bank, and bears interest at a rate agreed upon by Georgia Power and the bank from time to time. In both March 2026 and subsequent to March 31, 2026, Georgia Power repaid $50 million of the short-term uncommitted bank credit arrangement, resulting in $150 million outstanding.

In March 2026, Georgia Power made initial borrowings under a multi-advance term loan facility with the FFB in an aggregate principal amount of approximately $1.0 billion at an interest rate of 5.041% through the final maturity date of December 10, 2055. The proceeds were used to reimburse Georgia Power for eligible costs relating to certain generation, battery energy storage, and transmission facilities. See Note (F) to the Condensed Financial Statements under "DOE Loan Guarantee Borrowings" herein for additional information.

Subsequent to March 31, 2026, Georgia Power repaid at maturity $325 million aggregate principal amount of its Series 2016A 3.25% Senior Notes.

***Mississippi Power***

In March 2026, Mississippi Power issued approximately $75 million aggregate principal amount of Series 2026A Floating Rate Senior Notes due May 15, 2076.

**Credit Rating Risk**

At March 31, 2026, the Registrants did not have any credit arrangements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade.

There are certain contracts that could require collateral, but not accelerated payment, in the event of a credit rating change of certain Registrants to BBB and/or Baa2 or below. These contracts are primarily for physical electricity and natural gas purchases and sales, fuel purchases, fuel transportation and storage, energy price risk management, transmission, interest rate management, and equipment purchases related to construction of facilities.

The maximum potential collateral requirements under these contracts at March 31, 2026 were as follows:

---

| | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|
| **Credit Ratings** | **Southern**<br>&nbsp;&nbsp;&nbsp;&nbsp;**Company**<sup>(\*)</sup> | **Alabama<br>Power** | **Georgia<br>Power** | **Mississippi<br>Power** | **Southern**<br>&nbsp;&nbsp;&nbsp;&nbsp;**Power**<sup>(\*)</sup> | **Southern<br>Company<br>Gas** |
| | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* | *(in millions)* |
| At BBB and/or Baa2 | $32 | $1 | $— | $— | $31 | $— |
| At BBB- and/or Baa3 | 463 | 2 | 36 |  | 424 |  |
| At BB+ and/or Ba1 or below | 3837 | 425 | 2496 | 280 | 1409 | 33 |

---

(\*)Southern Power has PPAs that could require collateral, but not accelerated payment, in the event of a downgrade of Southern Power's credit. The PPAs require credit assurances without stating a specific credit rating. The amount of collateral required would depend upon actual losses resulting from a credit downgrade. Southern Power had $106 million of cash collateral posted related to PPA requirements at March 31, 2026.

The amounts in the previous table for the traditional electric operating companies and Southern Power include certain agreements that could require collateral if either Alabama Power or Georgia Power has a credit rating change to below investment grade. Generally, collateral may be provided by a Southern Company guaranty, letter of credit, or cash. Additionally, a credit rating downgrade could impact the ability of the Registrants to access capital markets and would be likely to impact the cost at which they do so.

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**Item 3. Quantitative and Qualitative Disclosures About Market Risk.**

During the three months ended March 31, 2026, there were no material changes to Southern Company's, Alabama Power's, Georgia Power's, Mississippi Power's, Southern Power's, or Southern Company Gas' disclosures about market risk. For an in-depth discussion of each Registrant's market risks, see MANAGEMENT'S DISCUSSION AND ANALYSIS – FINANCIAL CONDITION AND LIQUIDITY – "Market Price Risk" in Item 7 of the Form 10-K and Note 1 to the financial statements under "Financial Instruments" and Notes 13 and 14 to the financial statements in Item 8 of the Form 10-K, as well as Notes (I) and (J) to the Condensed Financial Statements herein.

**Item 4. Controls and Procedures.**

&nbsp;&nbsp;&nbsp;&nbsp;(a)Evaluation of disclosure controls and procedures.

As of the end of the period covered by this Quarterly Report on Form 10-Q, Southern Company, Alabama Power, Georgia Power, Mississippi Power, Southern Power, and Southern Company Gas conducted separate evaluations under the supervision and with the participation of each company's management, including the Chief Executive Officer and the Chief Financial Officer, of the effectiveness of the design and operation of the disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended). Based upon these evaluations, the Chief Executive Officer and the Chief Financial Officer, in each case, concluded that the disclosure controls and procedures are effective.

&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;&nbsp;&nbsp;&nbsp;Changes in internal control over financial reporting.

There have been no changes in Southern Company's, Alabama Power's, Georgia Power's, Mississippi Power's, Southern Power's, or Southern Company Gas' internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended) during the first quarter 2026 that have materially affected or are reasonably likely to materially affect Southern Company's, Alabama Power's, Georgia Power's, Mississippi Power's, Southern Power's, or Southern Company Gas' internal control over financial reporting.

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**PART II — OTHER INFORMATION**

**Item 1. Legal Proceedings.**

See the Notes to the Condensed Financial Statements herein for information regarding certain legal and administrative proceedings in which the Registrants are involved. The Registrants' threshold for disclosing material environmental legal proceedings involving a governmental authority where potential monetary sanctions are involved is $1 million.

**Item 1A. Risk Factors.**

See RISK FACTORS in Item 1A of the Form 10-K for a discussion of the risk factors of the Registrants. There have been no material changes to these risk factors from those previously disclosed in the Form 10-K.

**Item 5. Other Information.**

There were no adoptions, modifications, or terminations of "Rule 10b5-1 trading arrangements" or "non-Rule 10b5-1 trading arrangements," as defined in Item 408(a) of Regulation S-K, during the three months ended March 31, 2026 by the Registrants' directors and "officers," as defined in Rule 16a-1(f) under the Securities Exchange Act of 1934, as amended.

**Item 6. Exhibits.**

The exhibits below with an asterisk (\*) preceding the exhibit number are filed herewith. The remaining exhibits have previously been filed with the SEC and are incorporated herein by reference. The exhibits marked with a pound sign (#) are management contracts or compensatory plans or arrangements.

---

| | |
|:---|:---|
| **(4) Instruments Describing Rights of Security Holders, Including Indentures** | **(4) Instruments Describing Rights of Security Holders, Including Indentures** |
| **Southern Company** | **Southern Company** |
| (a) | Seventeenth Supplemental Indenture to Subordinated Note Indenture dated as of March 19, 2026, providing for the issuance of the Series 2026A 6.00% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due April 1, 2058. (<u>[Designated in Form 8-K dated](https://www.sec.gov/Archives/edgar/data/92122/000009212226000018/ex44so2026ausdjsns17thsupp.htm)[March 16, 202](https://www.sec.gov/Archives/edgar/data/92122/000009212226000018/ex44so2026ausdjsns17thsupp.htm)[6](https://www.sec.gov/Archives/edgar/data/92122/000009212226000018/ex44so2026ausdjsns17thsupp.htm)[, File No. 1-](https://www.sec.gov/Archives/edgar/data/92122/000009212226000018/ex44so2026ausdjsns17thsupp.htm)[3526](https://www.sec.gov/Archives/edgar/data/92122/000009212226000018/ex44so2026ausdjsns17thsupp.htm)[as Exhibit 4.](https://www.sec.gov/Archives/edgar/data/92122/000009212226000018/ex44so2026ausdjsns17thsupp.htm)[4](https://www.sec.gov/Archives/edgar/data/92122/000009212226000018/ex44so2026ausdjsns17thsupp.htm)</u>.) |
| **Mississippi Power** | **Mississippi Power** |
| (d) | Eighth Supplemental Indenture to Senior Note Indenture dated as of March 3, 2026, providing for the issuance of the Series 2026A Floating Rate Senior Notes due May 15, 2076. (<u>[Designated in Form 8-K dated](https://www.sec.gov/Archives/edgar/data/66904/000006690426000008/ex4-2mpcx8thsupplementalin.htm)[February 27, 2026](https://www.sec.gov/Archives/edgar/data/66904/000006690426000008/ex4-2mpcx8thsupplementalin.htm)[, File No. 1-](https://www.sec.gov/Archives/edgar/data/66904/000006690426000008/ex4-2mpcx8thsupplementalin.htm)[11229](https://www.sec.gov/Archives/edgar/data/66904/000006690426000008/ex4-2mpcx8thsupplementalin.htm)[, as Exhibit 4.](https://www.sec.gov/Archives/edgar/data/66904/000006690426000008/ex4-2mpcx8thsupplementalin.htm)[2](https://www.sec.gov/Archives/edgar/data/66904/000006690426000008/ex4-2mpcx8thsupplementalin.htm)</u>.) |
| **(10) Material Contracts** | **(10) Material Contracts** |
| **Alabama Power** | **Alabama Power** |
| (b)1 | Loan Guarantee Agreement, dated as of February 20, 2026, between Alabama Power and the DOE, as guarantor. (<u>[Designated in Form 8-K dated February 20, 2026, File No](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-1xapcloanguarant.htm)[. 1-3164 as Exhibit 10.1](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-1xapcloanguarant.htm)</u>.) |
| (b)2 | Note Purchase Agreement, dated as of February 20, 2026, among Alabama Power, the FFB, and the Secretary of Energy, acting through the DOE. (<u>[Designated in Form 8-K dated February 20, 2026, File No. 1-3164 as Exhibit 10.](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-2xapcnpa.htm)[2](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-2xapcnpa.htm)</u>.)  |
| (b)3 | Form of Promissory Note of Alabama Power to the FFB. (<u>[Designated in Form 8-K dated February 20, 2026, File No. 1-3164 as Exhibit 10.](https://www.sec.gov/Archives/edgar/data/92122/000009212226000010/exhibit10-3xformofapcnote.htm)[3](https://www.sec.gov/Archives/edgar/data/92122/000009212226000010/exhibit10-3xformofapcnote.htm)</u>.)  |
| **Georgia Power** | **Georgia Power** |
| (c)1 | Loan Guarantee Agreement, dated as of February 20, 2026, between Georgia Power and the DOE, as guarantor. (<u>[Designated in Form 8-K dated February 20, 2026, File No. 1-](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-4xgpcloanguarant.htm)[6468](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-4xgpcloanguarant.htm)[as Exhibit 10.](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-4xgpcloanguarant.htm)[4](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-4xgpcloanguarant.htm)</u>.) |

---

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&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

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| | | |
|:---|:---|:---|
| | (c)2 | Note Purchase Agreement, dated as of February 20, 2026, among Georgia Power, the FFB, and the Secretary of Energy, acting through the DOE. (<u>[Designated in Form 8-K dated February 20, 2026, File No. 1-6468 as Exhibit 10.](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-5xgpcnpa.htm)[5](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-5xgpcnpa.htm)</u>.) |
| | (c)3 | Form of Promissory Note of Georgia Power to the FFB. (<u>[Designated in Form 8-K dated February 20, 2026, File No. 1-6468 as Exhibit 10.](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-6formofgpcnote.htm)[6](https://www.sec.gov/Archives/edgar/data/3153/000009212226000010/exhibit10-6formofgpcnote.htm)</u>.) |
| | **(24) Power of Attorney and Resolutions** | **(24) Power of Attorney and Resolutions** |
| | **Southern Company** | **Southern Company** |
| | (a) | Power of Attorney and resolution. (<u>[Designated in the Form 10-K for the year ended December 31, 202](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24a1-q42025xsopoa.htm)[5](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24a1-q42025xsopoa.htm)[, File No. 1-3526 as Exhibit 24(a)1](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24a1-q42025xsopoa.htm)</u>.) |
| | **Alabama Power** | **Alabama Power** |
| | (b) | Power of Attorney and resolution. (<u>[Designated in the Form 10-K for the year ended December 31, 202](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24b1q42025-apcpoa.htm)[5](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24b1q42025-apcpoa.htm)[, File No. 1-3164 as Exhibit 24(b)1](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24b1q42025-apcpoa.htm)</u>.) |
| | **Georgia Power** | **Georgia Power** |
| | (c) | Power of Attorney and resolution. (<u>[Designated in the Form 10-K for the year ended December 31, 202](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24c1-q42025xgpcpoa.htm)[5](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24c1-q42025xgpcpoa.htm)[, File No. 1-6468 as Exhibit 24(c)1](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24c1-q42025xgpcpoa.htm)</u>.) |
| | **Mississippi Power** | **Mississippi Power** |
| | (d) | Power of Attorney and resolution. (<u>[Designated in the Form 10-K for the year ended December 31, 202](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24d1-q42025xmpcpoa.htm)[5](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24d1-q42025xmpcpoa.htm)[, File No. 001-11229 as Exhibit 24(d)1](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24d1-q42025xmpcpoa.htm)</u>.) |
| | **Southern Power** | **Southern Power** |
| | (e) | Power of Attorney and resolution. (<u>[Designated in the Form 10-K for the year ended December 31, 202](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24e1-q42025xspcpoa.htm)[5](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24e1-q42025xspcpoa.htm)[, File No. 001-37803 as Exhibit 24(e)1](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24e1-q42025xspcpoa.htm)</u>.) |
| | **Southern Company Gas** | **Southern Company Gas** |
| | (f) | Power of Attorney and resolution. (<u>[Designated in the Form 10-K for the year ended December 31, 202](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24f1-q42025xgaspoa.htm)[5](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24f1-q42025xgaspoa.htm)[, File No. 1-14174 as Exhibit 24(f)1](https://www.sec.gov/Archives/edgar/data/92122/000009212226000006/x24f1-q42025xgaspoa.htm)</u>.) |
| | **(31) Section 302 Certifications** | **(31) Section 302 Certifications** |
| | **Southern Company** | **Southern Company** |
| \* | (a)1 | <u>[Certificate of Southern Company's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31a1-q12026so.htm)</u>. |
| \* | (a)2 | <u>[Certificate of Southern Company's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31a2-q12026so.htm)</u>. |
|  | **Alabama Power** | **Alabama Power** |
| \* | (b)1 | <u>[Certificate of Alabama Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31b1-q12026apc.htm)</u>. |
| \* | (b)2 | <u>[Certificate of Alabama Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31b2-q12026apc.htm)</u>. |
|  | **Georgia Power** | **Georgia Power** |
| \* | (c)1 | <u>[Certificate of Georgia Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31c1-q12026gpc.htm)</u>. |
| \* | (c)2 | <u>[Certificate of Georgia Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31c2-q12026gpc.htm)</u>. |
|  | **Mississippi Power** | **Mississippi Power** |
| \* | (d)1 | <u>[Certificate of Mississippi Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31d1-q12026mpc.htm)</u>. |

---

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| | | |
|:---|:---|:---|
| \* | (d)2 | <u>[Certificate of Mississippi Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31d2-q12026mpc.htm)</u>. |
|  | **Southern Power** | **Southern Power** |
| \* | (e)1 | <u>[Certificate of Southern Power Company's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31e1-q12026spc.htm)</u>. |
| \* | (e)2 | <u>[Certificate of Southern Power Company's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31e2-q12026spc.htm)</u>. |
|  | **Southern Company Gas** | **Southern Company Gas** |
| \* | (f)1 | <u>[Certificate of Southern Company Gas' Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31f1-q12026gas.htm)</u>. |
| \* | (f)2 | <u>[Certificate of Southern Company Gas' Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002](x31f2-q12026gas.htm)</u>. |
|  | **(32) Section 906 Certifications** | **(32) Section 906 Certifications** |
|  | **Southern Company** | **Southern Company** |
| \* | (a) | <u>[Certificate of Southern Company's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002](x32a-q12026so.htm)</u>. |
|  | **Alabama Power** | **Alabama Power** |
| \* | (b) | <u>[Certificate of Alabama Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002](x32b-q12026apc.htm)</u>. |
|  | **Georgia Power** | **Georgia Power** |
| \* | (c) | <u>[Certificate of Georgia Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002](x32c-q12026gpc.htm)</u>. |
|  | **Mississippi Power** | **Mississippi Power** |
| \* | (d) | <u>[Certificate of Mississippi Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002](x32d-q12026mpc.htm)</u>. |
|  | **Southern Power** | **Southern Power** |
| \* | (e) | <u>[Certificate of Southern Power Company's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002](x32e-q12026spc.htm)</u>. |
|  | **Southern Company Gas** | **Southern Company Gas** |
| \* | (f) | <u>[Certificate of Southern Company Gas' Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002](x32f-q12026gas.htm)</u>. |
|  | **(101) Interactive Data Files** | **(101) Interactive Data Files** |
| \* | INS | Inline XBRL Instance Document – The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document. |
| \* | SCH | Inline XBRL Taxonomy Extension Schema Document |
| \* | CAL | Inline XBRL Taxonomy Calculation Linkbase Document |
| \* | DEF | Inline XBRL Definition Linkbase Document |
| \* | LAB | Inline XBRL Taxonomy Label Linkbase Document |
| \* | PRE | Inline XBRL Taxonomy Presentation Linkbase Document |
|  | **(104) Cover Page Interactive Data File** | **(104) Cover Page Interactive Data File** |
| \* |  | Formatted as inline XBRL with applicable taxonomy extension information contained in Exhibits 101. |

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**THE SOUTHERN COMPANY**

**SIGNATURES**

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 thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

---

| | |
|:---|:---|
| | THE SOUTHERN COMPANY |
| &nbsp;&nbsp;&nbsp;By | *Christopher C. Womack* |
| | *Chairman, President, and Chief Executive Officer* |
| | *(Principal Executive Officer)* |
| &nbsp;&nbsp;&nbsp;By | *David P. Poroch* |
| | *Executive Vice President and Chief Financial Officer* |
| | *(Principal Financial Officer)* |
| &nbsp;&nbsp;&nbsp;By | */s/ Melissa K. Caen* |
| | *(Melissa K. Caen, Attorney-in-fact)* |

---

Date: April 29, 2026

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**ALABAMA POWER COMPANY**

**SIGNATURES**

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 thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

---

| | |
|:---|:---|
| | ALABAMA POWER COMPANY |
| &nbsp;&nbsp;&nbsp;By | *J. Jeffrey Peoples* |
| | *Chairman, President, and Chief Executive Officer* |
| | *(Principal Executive Officer)* |
| &nbsp;&nbsp;&nbsp;By | *Moses H. Feagin* |
| | *Executive Vice President, Chief Financial Officer, and Treasurer* |
| | *(Principal Financial Officer)* |
| &nbsp;&nbsp;&nbsp;By | */s/ Melissa K. Caen* |
| | *(Melissa K. Caen, Attorney-in-fact)* |

---

Date: April 29, 2026

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**GEORGIA POWER COMPANY**

**SIGNATURES**

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 thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

---

| | |
|:---|:---|
| | GEORGIA POWER COMPANY |
| &nbsp;&nbsp;&nbsp;By | *Kimberly S. Greene* |
| | *Chairman, President, and Chief Executive Officer* |
| | *(Principal Executive Officer)* |
| &nbsp;&nbsp;&nbsp;By | *Tyler M. Cook* |
| | *Senior Vice President, Chief Financial Officer, and Treasurer* |
| | *(Principal Financial Officer)* |
| &nbsp;&nbsp;&nbsp;By | */s/ Melissa K. Caen* |
| | *(Melissa K. Caen, Attorney-in-fact)* |

---

Date: April 29, 2026

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**MISSISSIPPI POWER COMPANY**

**SIGNATURES**

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 thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

---

| | |
|:---|:---|
| | MISSISSIPPI POWER COMPANY |
| &nbsp;&nbsp;&nbsp;By | *Pedro P. Cherry* |
| | *Chairman, President, and Chief Executive Officer* |
| | *(Principal Executive Officer)* |
| &nbsp;&nbsp;&nbsp;By | *Matthew P. Grice* |
| | *Vice President, Chief Financial Officer, and Treasurer* |
| | *(Principal Financial Officer)* |
| &nbsp;&nbsp;&nbsp;By | */s/ Melissa K. Caen* |
| | *(Melissa K. Caen, Attorney-in-fact)* |

---

Date: April 29, 2026

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN POWER COMPANY**

**SIGNATURES**

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 thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

---

| | |
|:---|:---|
| | SOUTHERN POWER COMPANY |
| &nbsp;&nbsp;&nbsp;By | *Christopher Cummiskey* |
| | *Chairman and Chief Executive Officer* |
| | *(Principal Executive Officer)* |
| &nbsp;&nbsp;&nbsp;By | *Gary Kerr* |
| | *Senior Vice President, Chief Financial Officer, and Treasurer* |
| | *(Principal Financial Officer)* |
| &nbsp;&nbsp;&nbsp;By | */s/ Melissa K. Caen* |
| | *(Melissa K. Caen, Attorney-in-fact)* |

---

Date: April 29, 2026

------

&nbsp;&nbsp;&nbsp;&nbsp;<u>[**Table of Contents**](#i505af990baee483db750d4302bd03c67_10)</u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<u>[Index to Financial Statements](#i505af990baee483db750d4302bd03c67_22)</u>

**SOUTHERN COMPANY GAS**

**SIGNATURES**

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 thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

---

| | |
|:---|:---|
| | SOUTHERN COMPANY GAS |
| &nbsp;&nbsp;&nbsp;By | *James Y. Kerr II* |
| | *Chairman, President, and Chief Executive Officer* |
| | *(Principal Executive Officer)* |
| &nbsp;&nbsp;&nbsp;By | *Grace A. Kolvereid* |
| | *Executive Vice President, Chief Financial Officer, and Treasurer* |
| | *(Principal Financial Officer)* |
| &nbsp;&nbsp;&nbsp;By | */s/ Melissa K. Caen* |
| | *(Melissa K. Caen, Attorney-in-fact)* |

---

Date: April 29, 2026

## Ex-31.A1

Exhibit 31(a)1

**THE SOUTHERN COMPANY**

**CERTIFICATION OF CHIEF EXECUTIVE OFFICER**

I, Christopher C. Womack, certify that:

1. I have reviewed this quarterly report on Form 10-Q of The Southern Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/Christopher C. Womack |
| Christopher C. Womack |
| Chairman, President and<br>Chief Executive Officer |

---

## Ex-31.A2

Exhibit 31(a)2

**THE SOUTHERN COMPANY**

**CERTIFICATION OF CHIEF FINANCIAL OFFICER**

I, David P. Poroch, certify that:

1. I have reviewed this quarterly report on Form 10-Q of The Southern Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/David P. Poroch |
| David P. Poroch |
| Executive Vice President and<br> Chief Financial Officer |

---

## Ex-31.B1

Exhibit 31(b)1

**ALABAMA POWER COMPANY**

**CERTIFICATION OF CHIEF EXECUTIVE OFFICER**

I, J. Jeffrey Peoples, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Alabama Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/J. Jeffrey Peoples |
| J. Jeffrey Peoples |
| Chairman, President and Chief Executive Officer |

---

## Ex-31.B2

Exhibit 31(b)2

**ALABAMA POWER COMPANY**

**CERTIFICATION OF CHIEF FINANCIAL OFFICER**

I, Moses H. Feagin, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Alabama Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/Moses H. Feagin |
| Moses H. Feagin |
| Executive Vice President, Chief Financial Officer<br>and Treasurer |

---

## Ex-31.C1

Exhibit 31(c)1

**GEORGIA POWER COMPANY**

**CERTIFICATION OF CHIEF EXECUTIVE OFFICER**

I, Kimberly S. Greene, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Georgia Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/Kimberly S. Greene |
| Kimberly S. Greene |
| Chairman, President and Chief Executive Officer |

---

## Ex-31.C2

Exhibit 31(c)2

**GEORGIA POWER COMPANY**

**CERTIFICATION OF CHIEF FINANCIAL OFFICER**

I, Tyler M. Cook, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Georgia Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/Tyler M. Cook |
| Tyler M. Cook |
| Senior Vice President, Chief Financial Officer and Treasurer |

---

## Ex-31.D1

Exhibit 31(d)1

**MISSISSIPPI POWER COMPANY**

**CERTIFICATION OF CHIEF EXECUTIVE OFFICER**

I, Pedro P. Cherry, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Mississippi Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/Pedro P. Cherry |
| Pedro P. Cherry |
| Chairman, President and Chief Executive Officer |

---

## Ex-31.D2

Exhibit 31(d)2

**MISSISSIPPI POWER COMPANY**

**CERTIFICATION OF CHIEF FINANCIAL OFFICER**

I, Matthew P. Grice, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Mississippi Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/Matthew P. Grice |
| Matthew P. Grice |
| Vice President, Treasurer and<br>Chief Financial Officer |

---

## Ex-31.E1

Exhibit 31(e)1

**SOUTHERN POWER COMPANY** 

**CERTIFICATION OF CHIEF EXECUTIVE OFFICER** 

I, Christopher Cummiskey, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Southern Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/Christopher Cummiskey |
| Christopher Cummiskey |
| Chairman and Chief Executive Officer |

---

## Ex-31.E2

Exhibit 31(e)2

**SOUTHERN POWER COMPANY**

**CERTIFICATION OF CHIEF FINANCIAL OFFICER**

I, Gary Kerr, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Southern Power Company;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/Gary Kerr |
| Gary Kerr |
| Senior Vice President, Chief<br>Financial Officer and Treasurer |

---

## Ex-31.F1

Exhibit 31(f)1

**SOUTHERN COMPANY GAS**

**CERTIFICATION OF CHIEF EXECUTIVE OFFICER**

I, James Y. Kerr II, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Southern Company Gas;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/James Y. Kerr II |
| James Y. Kerr II |
| Chairman, President and Chief<br> Executive Officer |

---

## Ex-31.F2

Exhibit 31(f)2

**SOUTHERN COMPANY GAS**

**CERTIFICATION OF CHIEF FINANCIAL OFFICER**

I, Grace A. Kolvereid, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Southern Company Gas;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c.Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;d.Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: April 29, 2026

---

| |
|:---|
| /s/Grace A. Kolvereid |
| Grace A. Kolvereid |
| Executive Vice President, Chief Financial<br>Officer and Treasurer |

---

## Ex-32.A

Exhibit 32(a)

**CERTIFICATION**

**18 U.S.C. SECTION 1350**

**AS ADOPTED PURSUANT TO SECTION 906 OF THE**

**SARBANES-OXLEY ACT OF 2002**

In connection with the accompanying Quarterly Report on Form 10-Q of The Southern Company for the quarter ended March 31, 2026, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)such Quarterly Report on Form 10-Q of The Southern Company for the quarter ended March 31, 2026, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)the information contained in such Quarterly Report on Form 10-Q of The Southern Company for the quarter ended March 31, 2026, fairly presents, in all material respects, the financial condition and results of operations of The Southern Company.

---

| |
|:---|
| /s/Christopher C. Womack |
| Christopher C. Womack |
| Chairman, President and<br>Chief Executive Officer |
| /s/David P. Poroch |
| David P. Poroch |
| Executive Vice President and Chief Financial<br> Officer |

---

April 29, 2026

## Ex-32.B

Exhibit 32(b)

**CERTIFICATION**

**18 U.S.C. SECTION 1350**

**AS ADOPTED PURSUANT TO SECTION 906 OF THE**

**SARBANES-OXLEY ACT OF 2002**

In connection with the accompanying Quarterly Report on Form 10-Q of Alabama Power Company for the quarter ended March 31, 2026, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)such Quarterly Report on Form 10-Q of Alabama Power Company for the quarter ended March 31, 2026, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)the information contained in such Quarterly Report on Form 10-Q of Alabama Power Company for the quarter ended March 31, 2026, fairly presents, in all material respects, the financial condition and results of operations of Alabama Power Company.

---

| |
|:---|
| /s/J. Jeffrey Peoples |
| J. Jeffrey Peoples |
| Chairman, President and Chief Executive Officer |
| /s/Moses H. Feagin |
| Moses H. Feagin |
| Executive Vice President,<br>Chief Financial Officer and Treasurer |

---

April 29, 2026

## Ex-32.C

Exhibit 32(c)

**CERTIFICATION**

**18 U.S.C. SECTION 1350**

**AS ADOPTED PURSUANT TO SECTION 906 OF THE**

**SARBANES-OXLEY ACT OF 2002**

In connection with the accompanying Quarterly Report on Form 10-Q of Georgia Power Company for the quarter ended March 31, 2026, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)such Quarterly Report on Form 10-Q of Georgia Power Company for the quarter ended March 31, 2026, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)the information contained in such Quarterly Report on Form 10-Q of Georgia Power Company for the quarter ended March 31, 2026, fairly presents, in all material respects, the financial condition and results of operations of Georgia Power Company.

---

| |
|:---|
| /s/Kimberly S. Greene |
| Kimberly S. Greene |
| Chairman, President and Chief Executive Officer |
| /s/Tyler M. Cook |
| Tyler M. Cook |
| Senior Vice President, Chief Financial Officer and Treasurer |

---

April 29, 2026

## Ex-32.D

Exhibit 32(d)

**CERTIFICATION**

**18 U.S.C. SECTION 1350**

**AS ADOPTED PURSUANT TO SECTION 906 OF THE**

**SARBANES-OXLEY ACT OF 2002**

In connection with the accompanying Quarterly Report on Form 10-Q of Mississippi Power Company for the quarter ended March 31, 2026, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)such Quarterly Report on Form 10-Q of Mississippi Power Company for the quarter ended March 31, 2026, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)the information contained in such Quarterly Report on Form 10-Q of Mississippi Power Company for the quarter ended March 31, 2026, fairly presents, in all material respects, the financial condition and results of operations of Mississippi Power Company.

---

| |
|:---|
| /s/Pedro P. Cherry |
| Pedro P. Cherry |
| Chairman, President and Chief Executive Officer |
| /s/Matthew P. Grice |
| Matthew P. Grice |
| Vice President, Treasurer and<br>Chief Financial Officer |

---

April 29, 2026

## Ex-32.E

Exhibit 32(e)

CERTIFICATION

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002

In connection with the accompanying Quarterly Report on Form 10-Q of Southern Power Company for the quarter ended March 31, 2026, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)such Quarterly Report on Form 10-Q of Southern Power Company for the quarter ended March 31, 2026, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)the information contained in such Quarterly Report on Form 10-Q of Southern Power Company for the quarter ended March 31, 2026, fairly presents, in all material respects, the financial condition and results of operations of Southern Power Company.

---

| |
|:---|
| /s/Christopher Cummiskey |
| Christopher Cummiskey |
| Chairman and Chief Executive Officer |
| /s/Gary Kerr |
| Gary Kerr |
| Senior Vice President, Chief Financial Officer and Treasurer |

---

April 29, 2026

## Ex-32.F

Exhibit 32(f)

**CERTIFICATION**

**18 U.S.C. SECTION 1350**

**AS ADOPTED PURSUANT TO SECTION 906 OF THE**

**SARBANES-OXLEY ACT OF 2002**

In connection with the accompanying Quarterly Report on Form 10-Q of Southern Company Gas for the quarter ended March 31, 2026, we, the undersigned, hereby certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of our individual knowledge and belief, that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)such Quarterly Report on Form 10-Q of Southern Company Gas for the quarter ended March 31, 2026, which this statement accompanies, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)the information contained in such Quarterly Report on Form 10-Q of Southern Company Gas for the quarter ended March 31, 2026, fairly presents, in all material respects, the financial condition and results of operations of Southern Company Gas.

---

| |
|:---|
| /s/James Y. Kerr II |
| James Y. Kerr II |
| Chairman, President and Chief Executive Officer |
| /s/Grace A. Kolvereid |
| Grace A. Kolvereid |
| Executive Vice President, Chief Financial <br>Officer and Treasurer |

---

April 29, 2026

<br>