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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D. C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)February 15, 2024

Commission
File Number
Registrant,
State of Incorporation,
Address and Telephone Number
I.R.S. Employer
Identification No.
1-3526The Southern Company58-0690070
(A Delaware Corporation)
30 Ivan Allen Jr. Boulevard, N.W.
Atlanta, Georgia 30308
(404) 506-5000
1-3164Alabama Power Company63-0004250
(An Alabama Corporation)
600 North 18th Street
Birmingham, Alabama 35203
(205) 257-1000
1-6468Georgia Power Company58-0257110
(A Georgia Corporation)
241 Ralph McGill Boulevard, N.E.
Atlanta, Georgia 30308
(404) 506-6526
001-11229Mississippi Power Company64-0205820
(A Mississippi Corporation)
2992 West Beach Boulevard
Gulfport, Mississippi 39501
(228) 864-1211
001-37803Southern Power Company58-2598670
(A Delaware Corporation)
30 Ivan Allen Jr. Boulevard, N.W.
Atlanta, Georgia 30308
(404) 506-5000
1-14174Southern Company Gas58-2210952
(A Georgia Corporation)
Ten Peachtree Place, N.E.
Atlanta, Georgia 30309
(404) 584-4000

The names and addresses of the registrants have not changed since the last report.



This combined Form 8-K is furnished separately by six registrants: The Southern Company, Alabama Power Company, Georgia Power Company, Mississippi Power Company, Southern Power Company and Southern Company Gas. Information contained herein relating to each registrant is furnished by each registrant solely on its own behalf. Each registrant makes no representation as to information relating to the other registrants.

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

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

RegistrantTitle of each classTrading
Symbol(s)
Name of each exchange
on which registered
The Southern CompanyCommon Stock, par value $5 per shareSONew York Stock Exchange
The Southern CompanySeries 2017B 5.25% Junior Subordinated Notes due 2077SOJCNew York Stock Exchange
The Southern CompanySeries 2020A 4.95% Junior Subordinated Notes due 2080SOJDNew York Stock Exchange
The Southern Company
Series 2020C 4.20% Junior Subordinated Notes due 2060
SOJENew York Stock Exchange
The Southern CompanySeries 2021B 1.875% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due 2081SO 81New York Stock Exchange
Georgia Power CompanySeries 2017A 5.00% Junior Subordinated Notes due 2077GPJANew York Stock Exchange
Southern Power CompanySeries 2016B 1.850% Senior Notes due 2026SO/26ANew York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). (Response applicable to each registrant)
Emerging growth company  
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  



Item 2.02Results of Operations and Financial Condition
The information in this Current Report on Form 8-K, including the exhibits attached hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities under that Section. Furthermore, such information, including the exhibits attached hereto, shall not be deemed to be incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.
On February 15, 2024, The Southern Company (“Southern Company”) issued a press release regarding its earnings for the three-month and twelve-month periods ended December 31, 2023. A copy of this release is being furnished as Exhibit 99.01 to this Current Report on Form 8-K. In addition, certain additional information regarding the financial results for the three-month and twelve-month periods ended December 31, 2023 is being furnished as Exhibits 99.02 through 99.07 to this Current Report on Form 8-K.
Use of Non-GAAP Financial Measures
Exhibits 99.01, 99.02, 99.03 and 99.04 to this Current Report on Form 8-K include earnings and earnings per share in accordance with generally accepted accounting principles (“GAAP”) for the three-month and twelve-month periods ended December 31, 2023 and 2022. These exhibits also include earnings and earnings per share (1) for the three-month and twelve-month periods ended December 31, 2023 and 2022, excluding (a) charges and credits (net of salvage proceeds), associated legal expenses (net of insurance recoveries), and tax impacts related to plants under construction and (b) acquisition and disposition impacts, (2) for the twelve-month period ended December 31, 2023, excluding costs related to the extinguishment of debt at Southern Company, (3) for the three-month and twelve month periods ended December 31, 2023, excluding charges related to disallowances at Northern Illinois Gas Company, and (4) for the three-month and twelve-month periods ended December 31, 2022, excluding impairment charges associated with goodwill. The attached exhibits include additional information regarding these



excluded items, as well as reconciliations of each non-GAAP financial measure to the most comparable financial measure under GAAP. Southern Company believes the presentation of earnings and earnings per share, excluding these items, is useful to investors because it provides investors with additional information to evaluate the performance of Southern Company’s ongoing business activities.  Southern Company management also uses earnings and earnings per share, excluding the effect of these items, to evaluate the performance of Southern Company’s ongoing business activities.  The presentation of this additional information is not meant to be considered a substitute for financial measures prepared in accordance with GAAP.
Exhibits
The exhibits hereto contain business segment information for Alabama Power Company, Georgia Power Company, Mississippi Power Company, Southern Power Company and Southern Company Gas. Accordingly, this report is also being furnished on behalf of each such registrant.
The following exhibits relate to the three-month and twelve-month periods ended December 31, 2023:
Exhibit 99.01
Exhibit 99.02
Exhibit 99.03
Exhibit 99.04
Exhibit 99.05
Exhibit 99.06
Exhibit 99.07
Exhibit 104Cover Page Interactive Data File – The cover page iXBRL tags are embedded within the inline XBRL document.

2


SIGNATURES

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

Date:   February 15, 2024THE SOUTHERN COMPANY
By/s/David P. Poroch
David P. Poroch
Comptroller
ALABAMA POWER COMPANY
GEORGIA POWER COMPANY
MISSISSIPPI POWER COMPANY
SOUTHERN POWER COMPANY
SOUTHERN COMPANY GAS

By/s/Melissa K. Caen
Melissa K. Caen
Assistant Secretary

3

Exhibit 99.01
News
Media Contact:Southern Company Media Relations
404-506-5333 or 1-866-506-5333
www.southerncompany.com
Investor Relations Contact:
Scott Gammill
404-506-0901
[email protected]
February 15, 2024

Southern Company reports fourth-quarter and full-year 2023 earnings

ATLANTA – Southern Company today reported fourth-quarter earnings of $855 million, or 78 cents per share, in 2023 compared with a loss of $87 million, or 8 cents per share, in the fourth quarter of 2022. Southern Company also reported full-year 2023 earnings of $4.0 billion, or $3.64 per share, compared with $3.5 billion, or $3.28 per share, in 2022.

Excluding the items described under “Net Income – Excluding Items” in the table below, Southern Company earned $700 million, or 64 cents per share, during the fourth quarter of 2023, compared with $285 million, or 26 cents per share, during the fourth quarter of 2022. For the full-year 2023, excluding these items, Southern Company earned $4.0 billion, or $3.65 per share, compared with $3.9 billion, or $3.60 per share, for 2022.
Non-GAAP Financial Measures
Three Months Ended December
Year-to-Date December
Net Income - Excluding Items (in millions)2023202220232022
Net Income - As Reported$855 $(87)$3,976 $3,524 
Less:
Estimated Loss on Plants Under Construction222 (205)51 (199)
Tax Impact(56)52 (13)51 
Acquisition and Disposition Impacts1 (134)(1)(115)
Tax Impact32 34 33 32 
Loss on Extinguishment of Debt
 — (5)— 
Tax Impact — 1 — 
Estimated Loss on Qualifying Infrastructure Plant and Other Capital Investments
(58)— (96)— 
Tax Impact14 — 24 — 
Impairments (119) (119)
Tax Impact —  — 
Net Income - Excluding Items$700 $285 $3,982 $3,874 
Average Shares Outstanding - (in millions) 1,092 1,090 1,092 1,075 
Basic Earnings Per Share - Excluding Items$0.64 $0.26 $3.65 $3.60 

NOTE: For more information regarding these non-GAAP adjustments, see the footnotes accompanying the Financial Highlights page of the earnings package.




Adjusted earnings drivers for the full year 2023, as compared with 2022, were higher utility revenues, lower non-fuel operations and maintenance costs and income taxes, partially offset by increased depreciation and amortization and interest expense, and milder than normal weather at the company’s regulated electric utilities.

Fourth-quarter 2023 operating revenues were $6.0 billion, compared with $7.0 billion for the fourth quarter of 2022, a decrease of 14.2 percent. Operating revenues for the full year 2023 were $25.3 billion, compared with $29.3 billion in 2022, a decrease of 13.8 percent. These decreases were primarily due to lower fuel costs in 2023.

“Last year was an exceptional year for Southern Company,” said Chairman, President and CEO Christopher C. Womack. “In 2023, we once again demonstrated that we can accomplish extraordinary things. In addition to delivering strong financial results in the face of unprecedented headwinds, we completed Plant Vogtle Unit 3 – the first newly-constructed nuclear unit in the United States in over three decades.”

Southern Company’s fourth-quarter and full-year earnings slides with supplemental financial information, including earnings guidance, are available at http://investor.southerncompany.com.

Southern Company’s financial analyst call will begin at 1 p.m. Eastern Time today, during which Womack and Chief Financial Officer Daniel S. Tucker will discuss earnings and provide a general business update. Investors, media and the public may listen to a live webcast of the call and view associated slides at http://investor.southerncompany.com. A replay of the webcast will be available on the site for 12 months.

About Southern Company
Southern Company (NYSE: SO) is a leading energy provider serving 9 million customers across the Southeast and beyond through its family of companies. Providing clean, safe, reliable and affordable energy with excellent service is our mission. The company has electric operating companies in three states, natural gas distribution companies in four states, a competitive generation company, a leading distributed energy distribution company with national capabilities, a fiber optics network and telecommunications services. Through an industry-leading commitment to innovation, resilience and sustainability, we are taking action to meet customers’ and communities’ needs while advancing our goal of net zero greenhouse gas emissions by 2050. Our uncompromising values ensure we put the needs of those we serve at the center of everything we do and are the key to our sustained success. We are transforming energy into economic, environmental and social progress for tomorrow. Our corporate culture and hiring practices have earned the company national awards and recognition from numerous organizations, including Forbes, The Military Times, DiversityInc, Black Enterprise, J.D. Power, Fortune, Human Rights Campaign and more. To learn more, visit www.southerncompany.com.

###



Exhibit 99.02
Page 1
Southern Company
Financial Highlights
(In Millions of Dollars Except Earnings Per Share)
 Three Months Ended DecemberYear-To-Date December
Net Income (Loss)–As Reported (See Notes)2023202220232022
  Traditional Electric Operating Companies$785 $62 $3,637 $3,318 
  Southern Power69 89 357 354 
Southern Company Gas140 56 615 572 
  Total994 207 4,609 4,244 
  Parent Company and Other(139)(294)(633)(720)
  Net Income (Loss)–As Reported$855 $(87)$3,976 $3,524 
  Basic Earnings (Loss) Per Share1
$0.78 $(0.08)$3.64 $3.28 
  Average Shares Outstanding (in millions)
1,092 1,090 1,092 1,075 
  End of Period Shares Outstanding (in millions)
1,091 1,089 
Non-GAAP Financial MeasuresThree Months Ended DecemberYear-To-Date December
Net Income–Excluding Items (See Notes)2023202220232022
  Net Income (Loss)–As Reported$855 $(87)$3,976 $3,524 
Less:
Estimated Loss on Plants Under Construction2
222 (205)51 (199)
Tax Impact(56)52 (13)51 
Acquisition and Disposition Impacts3
1 (134)(1)(115)
Tax Impact32 34 33 32 
Loss on Extinguishment of Debt4
 — (5)— 
Tax Impact — 1 — 
Estimated Loss on Qualifying Infrastructure Plant and Other Capital Investments5
(58)— (96)— 
Tax Impact14 — 24 — 
Impairments6
 (119) (119)
Tax Impact —  — 
  Net Income–Excluding Items$700 $285 $3,982 $3,874 
  Basic Earnings Per Share–Excluding Items$0.64 $0.26 $3.65 $3.60 
- See Notes on the following page.





Exhibit 99.02
Page 2
Southern Company
Financial Highlights

Notes
(1)Dilution is not material in any period presented. Diluted earnings (loss) per share was $0.78 and $3.62 for the three and twelve months ended December 31, 2023, respectively, and was $(0.08) and $3.26 for the three and twelve months ended December 31, 2022, respectively.
(2)Earnings for the three and twelve months ended December 31, 2023 include a credit of $228 million pre tax ($170 million after tax) and a net credit of $68 million pre tax ($50 million after tax), respectively, and earnings for the three and twelve months ended December 31, 2022 include a charge of $201 million pre tax ($150 million after tax) and net charges of $183 million pre tax ($137 million after tax), respectively, for estimated probable losses on Georgia Power Company's construction of Plant Vogtle Units 3 and 4. Further charges may occur; however, the amount and timing of any such charges are uncertain. Earnings for the three and twelve months ended December 31, 2023 and 2022 also include charges (net of salvage proceeds), associated legal expenses (net of insurance recoveries), and tax impacts related to Mississippi Power Company's integrated coal gasification combined cycle facility project in Kemper County, Mississippi. Mississippi Power Company expects to incur additional pre-tax period costs to complete dismantlement of the abandoned gasifier-related assets and site restoration activities, including related costs for compliance and safety, asset retirement obligation accretion, and property taxes, net of salvage, totaling approximately $15 million annually through 2025.
(3)Earnings for the three and twelve months ended December 31, 2023 include a $35 million favorable tax impact related to a reversal of an uncertain tax position associated with the 2019 sale of Gulf Power Company. Earnings for the three and twelve months ended December 31, 2022 include impairment charges totaling $131 million pre-tax ($99 million after-tax) and other disposition impacts associated with the sales of Southern Company Gas' natural gas storage facilities. Earnings for the twelve months ended December 31, 2022 also include a $14 million pre-tax ($11 million after-tax) gain as a result of the early termination of the transition services agreement related to the 2019 sale of Gulf Power Company. Further impacts may result from future acquisition and disposition activities; however, the amount and timing of any such impacts are uncertain.
(4)Earnings for the twelve months ended December 31, 2023 include costs associated with the extinguishment of debt at Southern Company. Similar transaction costs may occur in the future at Southern Company or one of its unregulated subsidiaries; however, the amount and timing of any such costs are uncertain.
(5)Earnings for the three and twelve months ended December 31, 2023 include a charge of $58 million pre tax ($44 million after tax) and charges totaling $96 million pre tax ($72 million after tax), respectively, for estimated losses at Southern Company Gas associated with the Illinois Commerce Commission disallowances related to (1) its review of the Qualifying Infrastructure Plant (QIP) capital investments by Nicor Gas under the QIP rider, or Investing in Illinois program and (2) Nicor Gas' general base rate case proceeding. Further charges may occur; however, the amount and timing of any such charges are uncertain.
(6)Earnings for the three and twelve months ended December 31, 2022 include an impairment charge of $119 million (pre tax and after tax) associated with goodwill at PowerSecure, Inc. Impairment charges may occur in the future; however, the amount and timing of any such charges are uncertain.


Exhibit 99.03
Page 1
Southern Company
Significant Factors Impacting EPS
 Three Months Ended DecemberYear-To-Date December
 20232022Change20232022Change
Earnings (Loss) Per Share–
As Reported1 (See Notes)
$0.78 $(0.08)$0.86 $3.64 $3.28 $0.36 
  Significant Factors: 
  Traditional Electric Operating Companies$0.66 $0.30 
Southern Power(0.02) 
Southern Company Gas0.08 0.04 
Parent Company and Other0.14 0.08 
Increase in Shares (0.06)
  Total–As Reported$0.86 $0.36 
Three Months Ended DecemberYear-To-Date December
Non-GAAP Financial Measures20232022Change20232022Change
Earnings Per Share–
Excluding Items (See Notes)$0.64 $0.26 $0.38 $3.65 $3.60 $0.05 
  Total–As Reported$0.86 $0.36 
Less:
Estimated Loss on Plants Under Construction2
0.29 0.17 
Acquisition and Disposition Impacts3
0.12 0.10 
Loss on Extinguishment of Debt4
  
Estimated Loss on Qualifying Infrastructure Plant and Other Capital Investments5
(0.04)(0.07)
Impairments6
0.11 0.11 
  Total–Excluding Items$0.38 $0.05 
- See Notes on the following page.




Exhibit 99.03
Page 2
Southern Company
Significant Factors Impacting EPS

Notes
(1)Dilution is not material in any period presented. Diluted earnings (loss) per share was $0.78 and $3.62 for the three and twelve months ended December 31, 2023, respectively, and was $(0.08) and $3.26 for the three and twelve months ended December 31, 2022, respectively.
(2)Earnings for the three and twelve months ended December 31, 2023 include a credit of $228 million pre tax ($170 million after tax) and a net credit of $68 million pre tax ($50 million after tax), respectively, and earnings for the three and twelve months ended December 31, 2022 include a charge of $201 million pre tax ($150 million after tax) and net charges of $183 million pre tax ($137 million after tax), respectively, for estimated probable losses on Georgia Power Company's construction of Plant Vogtle Units 3 and 4. Further charges may occur; however, the amount and timing of any such charges are uncertain. Earnings for the three and twelve months ended December 31, 2023 and 2022 also include charges (net of salvage proceeds), associated legal expenses (net of insurance recoveries), and tax impacts related to Mississippi Power Company's integrated coal gasification combined cycle facility project in Kemper County, Mississippi. Mississippi Power Company expects to incur additional pre-tax period costs to complete dismantlement of the abandoned gasifier-related assets and site restoration activities, including related costs for compliance and safety, asset retirement obligation accretion, and property taxes, net of salvage, totaling approximately $15 million annually through 2025.
(3)Earnings for the three and twelve months ended December 31, 2023 include a $35 million favorable tax impact related to a reversal of an uncertain tax position associated with the 2019 sale of Gulf Power Company. Earnings for the three and twelve months ended December 31, 2022 include impairment charges totaling $131 million pre-tax ($99 million after-tax) and other disposition impacts associated with the sales of Southern Company Gas' natural gas storage facilities. Earnings for the twelve months ended December 31, 2022 also include a $14 million pre-tax ($11 million after-tax) gain as a result of the early termination of the transition services agreement related to the 2019 sale of Gulf Power Company. Further impacts may result from future acquisition and disposition activities; however, the amount and timing of any such impacts are uncertain.
(4)Earnings for the twelve months ended December 31, 2023 include costs associated with the extinguishment of debt at Southern Company. Similar transaction costs may occur in the future at Southern Company or one of its unregulated subsidiaries; however, the amount and timing of any such costs are uncertain.
(5)Earnings for the three and twelve months ended December 31, 2023 include a charge of $58 million pre tax ($44 million after tax) and charges totaling $96 million pre tax ($72 million after tax), respectively, for estimated losses at Southern Company Gas associated with the Illinois Commerce Commission disallowances related to (1) its review of the Qualifying Infrastructure Plant (QIP) capital investments by Nicor Gas under the QIP rider, or Investing in Illinois program and (2) Nicor Gas' general base rate case proceeding. Further charges may occur; however, the amount and timing of any such charges are uncertain.
(6)Earnings for the three and twelve months ended December 31, 2022 include an impairment charge of $119 million (pre tax and after tax) associated with goodwill at PowerSecure, Inc. Impairment charges may occur in the future; however, the amount and timing of any such charges are uncertain.


Exhibit 99.04
Page 1
Southern Company
EPS Earnings Analysis
Description
Three Months Ended December 2023 vs. 2022
Year-To-Date December
2023 vs. 2022
Retail Sales—¢(2)¢
Retail Revenue Impacts2630
Weather(2)(16)
Wholesale & Other Operating Revenues110
Non-Fuel O&M(*)
2035
Depreciation and Amortization(15)(59)
Interest Expense and Other(2)(10)
Income Taxes925
Total Traditional Electric Operating Companies37¢13¢
Southern Power(2)
Southern Company Gas32
Parent Company and Other(4)
Increase in Shares(6)
Total Change in EPS (Excluding Items)38¢
Estimated Loss on Plants Under Construction1
2917
Acquisition and Disposition Impacts2
1210
Loss on Extinguishment of Debt3
Estimated Loss on Qualifying Infrastructure Plant and Other Capital Investments4
(4)(7)
Impairments5
1111
Total Change in EPS (As Reported)86¢36¢
(*) Includes non-service cost-related benefits income.
- See additional Notes on the following page.
 



Exhibit 99.04
Page 2
Southern Company
EPS Earnings Analysis

Notes
(1)Earnings for the three and twelve months ended December 31, 2023 include a credit of $228 million pre tax ($170 million after tax) and a net credit of $68 million pre tax ($50 million after tax), respectively, and earnings for the three and twelve months ended December 31, 2022 include a charge of $201 million pre tax ($150 million after tax) and net charges of $183 million pre tax ($137 million after tax), respectively, for estimated probable losses on Georgia Power Company's construction of Plant Vogtle Units 3 and 4. Further charges may occur; however, the amount and timing of any such charges are uncertain. Earnings for the three and twelve months ended December 31, 2023 and 2022 also include charges (net of salvage proceeds), associated legal expenses (net of insurance recoveries), and tax impacts related to Mississippi Power Company's integrated coal gasification combined cycle facility project in Kemper County, Mississippi. Mississippi Power Company expects to incur additional pre-tax period costs to complete dismantlement of the abandoned gasifier-related assets and site restoration activities, including related costs for compliance and safety, asset retirement obligation accretion, and property taxes, net of salvage, totaling approximately $15 million annually through 2025.
(2)Earnings for the three and twelve months ended December 31, 2023 include a $35 million favorable tax impact related to a reversal of an uncertain tax position associated with the 2019 sale of Gulf Power Company. Earnings for the three and twelve months ended December 31, 2022 include impairment charges totaling $131 million pre-tax ($99 million after-tax) and other disposition impacts associated with the sales of Southern Company Gas' natural gas storage facilities. Earnings for the twelve months ended December 31, 2022 also include a $14 million pre-tax ($11 million after-tax) gain as a result of the early termination of the transition services agreement related to the 2019 sale of Gulf Power Company. Further impacts may result from future acquisition and disposition activities; however, the amount and timing of any such impacts are uncertain.
(3)Earnings for the twelve months ended December 31, 2023 include costs associated with the extinguishment of debt at Southern Company. Similar transaction costs may occur in the future at Southern Company or one of its unregulated subsidiaries; however, the amount and timing of any such costs are uncertain.
(4)Earnings for the three and twelve months ended December 31, 2023 include a charge of $58 million pre tax ($44 million after tax) and charges totaling $96 million pre tax ($72 million after tax), respectively, for estimated losses at Southern Company Gas associated with the Illinois Commerce Commission disallowances related to (1) its review of the Qualifying Infrastructure Plant (QIP) capital investments by Nicor Gas under the QIP rider, or Investing in Illinois program and (2) Nicor Gas' general base rate case proceeding. Further charges may occur; however, the amount and timing of any such charges are uncertain.
(5)Earnings for the three and twelve months ended December 31, 2022 include an impairment charge of $119 million (pre tax and after tax) associated with goodwill at PowerSecure, Inc. Impairment charges may occur in the future; however, the amount and timing of any such charges are uncertain.


Exhibit 99.05
Southern Company
Consolidated Earnings
As Reported
(In Millions of Dollars)
 Three Months Ended DecemberYear-To-Date December
 20232022Change20232022Change
Retail Electric Revenues-
Fuel$1,018 $1,460 $(442)$4,430 $6,402 $(1,972)
Non-Fuel2,728 2,374 354 11,913 11,795 118 
Wholesale Electric Revenues537 843 (306)2,467 3,641 (1,174)
Other Electric Revenues190 193 (3)792 747 45 
Natural Gas Revenues1,285 1,964 (679)4,702 5,962 (1,260)
Other Revenues287 213 74 949 732 217 
Total Operating Revenues6,045 7,047 (1,002)25,253 29,279 (4,026)
Fuel and Purchased Power1,192 1,894 (702)5,248 8,428 (3,180)
Cost of Natural Gas445 1,164 (719)1,644 3,004 (1,360)
Cost of Other Sales179 121 58 560 396 164 
Non-Fuel O&M1,741 2,005 (264)6,093 6,573 (480)
Depreciation and Amortization1,160 935 225 4,525 3,663 862 
Taxes Other Than Income Taxes349 338 11 1,425 1,411 14 
Estimated Loss on Plant Vogtle Units 3 and 4(228)201 (429)(68)183 (251)
Impairment Charges 251 (251) 251 (251)
Total Operating Expenses4,838 6,909 (2,071)19,427 23,909 (4,482)
Operating Income1,207 138 1,069 5,826 5,370 456 
Allowance for Equity Funds Used During Construction68 61 268 224 44 
Earnings from Equity Method Investments34 42 (8)144 151 (7)
Interest Expense, Net of Amounts Capitalized634 561 73 2,446 2,022 424 
Other Income (Expense), net125 86 39 553 500 53 
Income Taxes (Benefit)4 (96)100 496 795 (299)
Net Income (Loss)796 (138)934 3,849 3,428 421 
Dividends on Preferred Stock of Subsidiaries (1) 11 (11)
Net Loss Attributable to Noncontrolling Interests(59)(52)(7)(127)(107)(20)
NET INCOME (LOSS) ATTRIBUTABLE TO SOUTHERN COMPANY$855 $(87)$942 $3,976 $3,524 $452 
Notes
- Certain prior year data may have been reclassified to conform with current year presentation.


Exhibit 99.06
Southern Company
Kilowatt-Hour Sales and Customers
(In Millions of KWHs)
 Three Months Ended DecemberYear-To-Date December
20232022ChangeWeather Adjusted Change20232022ChangeWeather Adjusted Change
Kilowatt-Hour Sales-
Total Sales45,351 47,398 (4.3)%195,507 204,273 (4.3)%
Total Retail Sales-33,817 34,264 (1.3)%(0.3)%144,531 147,981 (2.3)%(0.4)%
Residential10,622 11,000 (3.4)%(1.0)%47,080 49,633 (5.1)%(0.5)%
Commercial11,294 11,219 0.7 %1.4 %48,343 48,279 0.1 %1.3 %
Industrial11,765 11,899 (1.1)%(1.1)%48,556 49,474 (1.9)%(1.9)%
Other136 146 (6.2)%(5.9)%552 595 (7.2)%(6.8)%
Total Wholesale Sales11,534 13,134 (12.2)%N/A50,976 56,292 (9.4)%N/A
(In Thousands of Customers)
Period Ended December
20232022Change
Regulated Utility Customers-
Total Utility Customers-8,8618,7950.8%
Total Traditional Electric4,4874,4371.1%
Southern Company Gas4,3744,3580.4%






Exhibit 99.07
Southern Company
Financial Overview
As Reported
(In Millions of Dollars)
Three Months Ended DecemberYear-To-Date December
20232022% Change20232022% Change
Southern Company –
Operating Revenues$6,045 $7,047 (14.2)%$25,253 $29,279 (13.8)%
Earnings (Loss) Before Income Taxes800 (234)N/M4,345 4,223 2.9 %
Net Income (Loss) Available to Common855 (87)N/M3,976 3,524 12.8 %
Alabama Power –
Operating Revenues$1,630 $1,794 (9.1)%$7,050 $7,817 (9.8)%
Earnings Before Income Taxes216 114 89.5 %1,451 1,774 (18.2)%
Net Income Available to Common238 84 183.3 %1,370 1,340 2.2 %
Georgia Power –
Operating Revenues$2,313 $2,366 (2.2)%$10,118 $11,584 (12.7)%
Earnings (Loss) Before Income Taxes636 (89)N/M2,528 2,183 15.8 %
Net Income (Loss) Available to Common533 (38)N/M2,080 1,813 14.7 %
Mississippi Power –
Operating Revenues$337 $415 (18.8)%$1,474 $1,694 (13.0)%
Earnings Before Income Taxes16 13 23.1 %224 201 11.4 %
Net Income Available to Common15 14 7.1 %188 164 14.6 %
Southern Power –
Operating Revenues$503 $751 (33.0)%$2,189 $3,369 (35.0)%
Earnings (Loss) Before Income Taxes(16)N/M242 267 (9.4)%
Net Income Available to Common69 89 (22.5)%357 354 0.8 %
Southern Company Gas –
Operating Revenues$1,285 $1,964 (34.6)%$4,702 $5,962 (21.1)%
Earnings Before Income Taxes191 75 154.7 %826 752 9.8 %
Net Income Available to Common140 56 150.0 %615 572 7.5 %
N/M - Not Meaningful
Notes
- See Financial Highlights pages for discussion of certain significant items occurring during the periods.