Item 16. FORM 10-K SUMMARY

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Item 16. FORM 10-K SUMMARY

None.

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Table of Contents Index to Financial Statements

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

FOR THE YEARS ENDED DECEMBER 31, 2023, 2022, AND 2021


			Additions
Description	Balance at Beginning of Period		Charged to Income		Charged to Other Accounts		Deductions(a)		Balance at End of Period
	(in millions)
Provision for uncollectible accounts:

Southern Company(b)
2023	$	71	$	87	$	3	$	93	$	68
2022	78		71		(1)		77		71
2021	118		51		(23)		68		78

Alabama Power
2023	$	14	$	16	$	—	$	14	$	16
2022	14		10		—		10		14
2021	43		(7)		—		22		14

Georgia Power(b)
2023	$	3	$	26	$	—	$	25	$	4
2022	2		21		—		20		3
2021	26		16		(23)		17		2

Mississippi Power
2023	$	1	$	2	$	—	$	2	$	1
2022	1		1		1		2		1
2021	1		1		—		1		1

Southern Power
2023	$	1	$	—	$	—	$	—	$	1
2022	5		(2)		—		2		1
2021	—		5		—		—		5

Southern Company Gas
2023	$	50	$	43	$	3	$	52	$	44
2022	39		55		—		44		50
2021	40		26		—		27		39

(a)Deductions represent write-offs of accounts considered to be uncollectible, less recoveries of amounts previously written off.

(b)During 2020, Georgia Power recorded $23 million of expected bad debt related to the COVID-19 pandemic to a regulatory asset in accordance with orders from the Georgia PSC. During 2021, based on a review of bad debt amounts under a Georgia PSC-approved methodology, Georgia Power reversed substantially all of the amount recorded in 2020.

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Table of Contents Index to Financial Statements

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS (CONTINUED)

FOR THE YEARS ENDED DECEMBER 31, 2023, 2022, AND 2021


			Additions
Description	Balance at Beginning of Period		Charged to Income		Charged to Other Accounts		Deductions		Balance at End of Period
	(in millions)
Tax valuation allowance (net state):

Southern Company(a)(b)
2023	$	207	$	(14)	$	(25)	$	—	$	168
2022	169		68		(30)		—		207
2021	112		57		—		—		169

Georgia Power(a)
2023	$	98	$	(15)	$	(23)	$	—	$	60
2022	58		70		(30)		—		98
2021	28		30		—		—		58

Mississippi Power(b)
2023	$	32	$	—	$	—	$	—	$	32
2022	32		—		—		—		32
2021	32		—		—		—		32

Southern Power(b)
2023	$	21	$	—	$	—	$	—	$	21
2022	21		—		—		—		21
2021	27		(6)		—		—		21

Southern Company Gas(b)
2023	$	7	$	—	$	(2)	$	—	$	5
2022	7		—		—		—		7
2021	4		3		—		—		7

(a)In 2018, Georgia Power established a valuation allowance for certain Georgia state tax credits expected to expire prior to being fully utilized, which has been adjusted in subsequent years as a result of changes in projected state taxable income.

(b)Associated with a state net operating loss carryforward expected to expire prior to being fully utilized.

See Note 10 to the financial statements in Item 8 herein for additional information.

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Table of Contents Index to Financial Statements

EXHIBIT INDEX

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 required to be identified as such by Item 15 of Form 10-K.



(3)	Articles of Incorporation and By-Laws
	Southern Company
		(a)	1	—	Restated Certificate of Incorporation of Southern Company, dated February 12, 2019. (Designated in Form 10-K for the year ended December 31, 2018, File No. 1-3526, as Exhibit 3(a)1.)
		(a)	2	—	Amended and Restated By-laws of Southern Company effective December 12, 2022, and as presently in effect. (Designated in Form 8-K dated December 12, 2022, File No. 1-3526, as Exhibit 3.1.)
	Alabama Power
		(b)	1	—	Charter of Alabama Power and amendments thereto through September 7, 2017. (Designated in Registration Nos. 2-59634 as Exhibit 2(b), 2-60209 as Exhibit 2(c), 2-60484 as Exhibit 2(b), 2-70838 as Exhibit 4(a)-2, 2-85987 as Exhibit 4(a)-2, 33-25539 as Exhibit 4(a)-2, 33-43917 as Exhibit 4(a)-2, in Form 8-K dated February 5, 1992, File No. 1-3164, as Exhibit 4(b)-3, in Form 8-K dated July 8, 1992, File No. 1-3164, as Exhibit 4(b)-3, in Form 8-K dated October 27, 1993, File No. 1-3164, as Exhibits 4(a) and 4(b), in Form 8-K dated November 16, 1993, File No. 1-3164, as Exhibit 4(a), in Certificate of Notification, File No. 70-8191, as Exhibit A, in Form 10-K for the year ended December 31, 1997, File No. 1-3164, as Exhibit 3(b)2, in Form 8-K dated August 10, 1998, File No. 1-3164, as Exhibit 4.4, in Form 10-K for the year ended December 31, 2000, File No. 1-3164, as Exhibit 3(b)2, in Form 10-K for the year ended December 31, 2001, File No. 1-3164, as Exhibit 3(b)2, in Form 8-K dated February 5, 2003, File No. 1-3164, as Exhibit 4.4, in Form 10-Q for the quarter ended March 31, 2003, File No 1-3164, as Exhibit 3(b)1, in Form 8-K dated February 5, 2004, File No. 1-3164, as Exhibit 4.4, in Form 10-Q for the quarter ended March 31, 2006, File No. 1-3164, as Exhibit 3(b)(1), in Form 8-K dated December 5, 2006, File No. 1-3164, as Exhibit 4.2, in Form 8-K dated September 12, 2007, File No. 1-3164, as Exhibit 4.5, in Form 8-K dated October 17, 2007, File No. 1-3164, as Exhibit 4.5, in Form 10-Q for the quarter ended March 31, 2008, File No. 1-3164, as Exhibit 3(b)1, and in Form 8-K dated September 5, 2017, File No. 1-3164, as Exhibit 4.1.)
		(b)	2	—	Amended and Restated By-laws of Alabama Power effective October 16, 2023, and as presently in effect. (Designated in Form 10 -Q for the quarter ended September 30, 2023 , File No 1-3164, as Exhibit 3 (b )1.)
	Georgia Power
		(c)	1	—	Charter of Georgia Power and amendments thereto through October 9, 2007. (Designated in Registration Nos. 2-63392 as Exhibit 2(a)-2, 2-78913 as Exhibits 4(a)-(2) and 4(a)-(3), 2-93039 as Exhibit 4(a)-(2), 2-96810 as Exhibit 4(a)-2, 33-141 as Exhibit 4(a)-(2), 33-1359 as Exhibit 4(a)(2), 33-5405 as Exhibit 4(b)(2), 33-14367 as Exhibits 4(b)-(2) and 4(b)-(3), 33-22504 as Exhibits 4(b)-(2), 4(b)-(3) and 4(b)-(4), in Form 10-K for the year ended December 31, 1991, File No. 1-6468, as Exhibits 4(a)(2) and 4(a)(3), in Registration No. 33-48895 as Exhibits 4(b)-(2) and 4(b)-(3), in Form 8-K dated December 10, 1992, File No. 1-6468 as Exhibit 4(b), in Form 8-K dated June 17, 1993, File No. 1-6468, as Exhibit 4(b), in Form 8-K dated October 20, 1993, File No. 1-6468, as Exhibit 4(b), in Form 10-K for the year ended December 31, 1997, File No. 1-6468, as Exhibit 3(c)2, in Form 10-K for the year ended December 31, 2000, File No. 1-6468, as Exhibit 3(c)2, in Form 8-K dated June 27, 2006, File No. 1-6468, as Exhibit 3.1, and in Form 8-K dated October 3, 2007, File No. 1-6468, as Exhibit 4.5.)
		(c)	2	—	By-laws of Georgia Power as amended effective November 9, 2016, and as presently in effect. (Designated in Form 8-K dated November 9, 2016, File No. 1-6468, as Exhibit 3.1.)
	Mississippi Power
		(d)	1	—	Amended and Restated Articles of Incorporation of Mississippi Power dated July 22, 2020. (Designated in Form 10-Q for the quarter ended June 30, 2020, File No. 001-11229, as Exhibit 3(d)1.)
		(d)	2	—	By-laws of Mississippi Power as amended effective July 22, 2020, and as presently in effect. (Designated in Form 10-Q for the quarter ended June 30, 2020, File No. 001-11229, as Exhibit 3(d)2.)

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	Southern Power
		(e)	1	—	Certificate of Incorporation of Southern Power Company dated January 8, 2001. (Designated in Registration No. 333-98553 as Exhibit 3.1.)
		(e)	2	—	By-laws of Southern Power Company effective January 8, 2001. (Designated in Registration No. 333-98553 as Exhibit 3.2.)
	Southern Company Gas
		(f)	1	—	Amended and Restated Articles of Incorporation of Southern Company Gas dated July 11, 2016. (Designated in Form 8-K dated July 8, 2016, File No. 1-14174, as Exhibit 3.1.)
		(f)	2	—	Amended and Restated By-laws of Southern Company Gas effective October 23, 2018. (Designated in Form 10-Q for the quarter ended June 30, 2019, File No. 1-14174, as Exhibit 3(e).)

(4)	Instruments Describing Rights of Security Holders, Including Indentures
	With respect to each of Southern Company, Alabama Power, Georgia Power, Mississippi Power, Southern Power Company, and Southern Company Gas, such Registrant has excluded certain instruments with respect to long-term debt that does not exceed 10% of the total assets of such Registrant and its subsidiaries. Each such Registrant agrees, upon request of the SEC, to furnish copies of any or all such instruments to the SEC.
	Southern Company
		(a)	1	—	Senior Note Indenture dated as of January 1, 2007, between Southern Company and Computershare Trust Company, N.A., as successor Trustee, and certain indentures supplemental thereto through September 8, 2023. (Designated in Form 8-K dated January 11, 2007, File No. 1-3526, as Exhibit 4.1, in Form 8-K dated May 19, 2016, File No. 1-3526, as Exhibit 4.2(e), in Form 8-K dated May 19, 2016, File No. 1-3526, as Exhibit 4.2(f), in Form 8-K dated May 19, 2016, File No. 1-3526, as Exhibit 4.2(g), in Form 8-K dated April 1, 2020, File No. 1-3526, as Exhibit 4.2, in Form 8-K dated February 23, 2021, File No. 1-3526, as Exhibit 4.4(a), in Form 8-K dated February 23, 2021, File No. 1-3526, as Exhibit 4.4(b), in Form 8-K dated October 3, 2022, File No. 1-3526, as Exhibit 4.4(a), in Form 8-K dated October 3, 2022, File No. 1-3526, as Exhibit 4.4(b), in Form 8-K dated February 28, 2023, File No. 1-3526, as Exhibit 4.2, in Form 8-K dated May 15, 2023, File No. 1-3526, as Exhibit 4.4(a), in Form 8-K dated May 15, 2023, File No. 1-3526, as Exhibit 4.4(b), in Form 8-K dated September 5, 2023, File No. 1-3526, as Exhibit 4.4(a), and in Form 8-K dated September 5, 2023, File No. 1-3526, as Exhibit 4.4(b).)
		(a)	2	—	Subordinated Note Indenture dated as of October 1, 2015, between The Southern Company and Computershare Trust Company, N.A., as successor Trustee, and certain indentures supplemental thereto through May 1, 2022. (Designated in Form 8-K dated October 1, 2015, File No. 1-3526, as Exhibit 4.3, in Form 10-Q for the quarter ended June 30, 2017, File No. 1-3526 as Exhibit 4(a)1, in Form 8-K dated November 17, 2017, File No. 1-3526, as Exhibit 4.4, in Form 8-K dated August 13, 2019, File No. 1-3526, as Exhibit 4.4(a), in Form 8-K dated August 13, 2019, File No. 1-3526, as Exhibit 4.4(b), in Form 8-K dated January 6, 2020, File No. 1-3526 as Exhibit 4.4, in Form 8-K dated September 15, 2020, File No. 1-3526, as Exhibit 4.4(a), in Form 8-K dated September 15, 2020, File No. 1-3526, as Exhibit 4.4(b), in Form 8-K dated May 3, 2021, File No. 1-3526, as Exhibit 4.4, in Form 8-K dated September 13, 2021, File No. 1-3526, as Exhibit 4.4, in Form 8-K dated May 9, 2022, File No. 1-3526, as Exhibit 4.4(a), and in Form 8-K dated May 9, 2022, File No. 1-3526, as Exhibit 4.4(b).)
		(a)	3	—	Description of securities registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended. (Designated in Form 10-K for the year ended Dec ember 31, 2022, File No. 1-3526, as Exhibit 4(a)3.)

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Alabama Power
	(b)	1	—	Senior Note Indenture dated as of December 1, 1997, between Alabama Power and Regions Bank, as Successor Trustee, and certain indentures supplemental thereto through November 9, 2023. (Designated in Form 8-K dated December 4, 1997, File No. 1-3164, as Exhibit 4.1, bit 4.2, in Form 8-K dated February 11, 2003, File No. 1-3164, as Exhibit 4.2(a), in Form 8-K dated March 12, 2003, File No. 1-3164, as Exhibit 4.2, in Form 8-K dated May 8, 2008, File No. 1-3164, as Exhibit 4.2, in Form 8-K dated February 26, 2009, File No. 1-3164 as Exhibit 4.2, in Form 8-K dated March 3, 2011, File No. 1-3164, as Exhibit 4.2, in Form 8-K dated May 18, 2011, File No. 1-3164, as Exhibit 4.2(b), in Form 8-K dated January 10, 2012, File No. 1-3164, as Exhibit 4.2, in Form 8-K dated November 27, 2012, File No. 1-3164, as Exhibit 4.2, in Form 8-K dated August 20, 2014, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated March 5, 2015, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated April 9, 2015, File No. 1-3164, as Exhibit 4.6(b), in Form 8-K dated January 8, 2016, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated November 2, 2017, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated June 21, 2018, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated September 12, 2019, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated August 24, 2020, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated June 7, 2021, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated November 15, 2021, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated March 2, 2022, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated August 9, 2022, File No. 1-3164, as Exhibit 4.6(a), in Form 8-K dated August 9, 2022, File No. 1-3164, as Exhibit 4.6(b), in Form 8-K dated May 3, 2023, File No. 1-3164 , as Exhibit 4.6, and in Form 8-K dated November 6, 2023, File No. 1-3164 , as Exhibit 4.6. )
Georgia Power
	(c)	1	—	Senior Note Indenture dated as of January 1, 1998, between Georgia Power and Computershare Trust Company, N.A., as Successor Trustee, and certain indentures supplemental thereto through November 8, 2023. (Designated in Form 8-K dated January 21, 1998, File No. 1-6468, as Exhibits 4.1, in Form 8-K dated March 6, 2007, File No. 1-6468, as Exhibit 4.2, in Form 8-K dated February 4, 2009, File No. 1-6468, as Exhibit 4.2, in Form 8-K dated May 24, 2010, File No. 1-6468, as Exhibit 4.2, in Form 8-K dated August 26, 2010, File No. 1-6468, as Exhibit 4.2, in Form 8-K dated February 29, 2012, File No. 1-6468, as Exhibit 4.2, in Form 8-K dated March 12, 2013, File No. 1-6468, as Exhibit 4.2(a), in Form 8-K dated March 2, 2016, File No. 1-6468, as Exhibit 4.2(a), in Form 8-K dated February 28, 2017, File No. 1-6468, as Exhibit 4.2(b), in Form 8-K dated September 4, 2019, File No. 1-6468, as Exhibit 4.2(a), in Form 8-K dated September 4, 2019, File No. 1-6468, as Exhibit 4.2(b), in Form 8-K dated January 8, 2020, File No. 1-6468, as Exhibit 4.2(c), in Form 8-K dated February 22, 2021, File No. 1-6468, as Exhibit 4.2 in Form 8-K dated May 2, 2022, File No. 1-6468, as Exhibit 4.2(a), in Form 8-K dated May 2, 2022, File No. 1-6468, as Exhibit 4.2(b), in Form 8-K dated May 1, 2023 , File No. 1-6468, as Exhibi t 4.2(a), in Form 8-K dated May 1, 2023, File No. 1 -6468 , as Exhibit 4.2(b), and in Form 8-K d ated November 3, 2023 , File No.1-6468, as Exhibit 4.2.)
	(c)	2	—	Subordinated Note Indenture, dated as of September 1, 2017, between Georgia Power and Computershare Trust Company, N.A., as Successor Trustee, and First Supplemental Indenture thereto dated as of September 21, 2017. (Designated in Form 8-K dated September 18, 2017, File No. 1-6468, as Exhibit 4.3, and in Form 8-K dated September 18, 2017, File No. 1-6468, as Exhibit 4.4.)
	(c)	3	—	Amended and Restated Loan Guarantee Agreement, dated as of March 22, 2019, between Georgia Power and the DOE. (Designated in Form 8-K dated March 22, 2019, File No. 1-6468, as Exhibit 4.1.)
	(c)	4	—	Note Purchase Agreement among Georgia Power, the DOE, and the Federal Financing Bank dated as of February 20, 2014. (Designated in Form 8-K dated February 20, 2014, File No. 1-6468, as Exhibit 4.2.)
	(c)	5	—	Future Advance Promissory Note dated February 20, 2014 made by Georgia Power to the FFB. (Designated in Form 8-K dated February 20, 2014, File No. 1-6468, as Exhibit 4.3.)
	(c)	6	—	Amended and Restated Deed to Secure Debt, Security Agreement and Fixture Filing, dated as of March 22, 2019, by Georgia Power to PNC Bank, National Association, doing business as Midland Loan Services Inc., a division of PNC Bank, National Association. (Designated in Form 8-K dated March 22, 2019, File No. 1-6468, as Exhibit 4.4.)
	(c)	7	—	Amended and Restated Owners Consent to Assignment and Direct Agreement and Amendment to Plant Alvin W. Vogtle Additional Units Ownership Participation Agreement, dated as of March 22, 2019, among Georgia Power, the other Vogtle Owners, the DOE, and PNC Bank, National Association, doing business as Midland Loan Services Inc., a division of PNC Bank, National Association. (Designated in Form 8-K dated March 22, 2019, File No. 1-6468, as Exhibit 4.5.)

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	(c)	8	—	Note Purchase Agreement, dated as of March 22, 2019, between Georgia Power, the DOE, and the FFB. (Designated in Form 8-K dated March 22, 2019, File No. 1-6468, as Exhibit 4.2.)
	(c)	9	—	Promissory Note of Georgia Power, dated as of March 22, 2019. (Designated in Form 8-K dated March 22, 2019, File No. 1-6468, as Exhibit 4.3.)
	(c)	10	—	Description of securities registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended. (Designated in Form 10-K for the year ended December 31, 2019, File No. 1-6468, as Exhibit 4(c)10.)
Mississippi Power
	(d)	1	—	Senior Note Indenture dated as of May 1, 1998, between Mississippi Power and Computershare Trust Company, N.A., as Successor Trustee, and certain indentures supplemental thereto through June 29, 2021. (Designated in Form 8-K dated May 14, 1998, File No. 001-11229, as Exhibit 4.1, in Form 8-K dated October 11, 2011, File No. 001-11229, as Exhibit 4.2(b), in Form 8-K dated March 5, 2012, File No. 001-11229, as Exhibit 4.2(b), in Form 8-K dated March 22, 2018, File No. 001-11229, as Exhibit 4.2(b), in Form 8-K dated June 24, 2021, File No. 001-11229, as Exhibit 4.2(a), and in Form 8-K dated June 24, 2021, File No. 001-11229, as Exhibit 4.2(b).)
	(d)	2	—	Senior Note Indenture dated as of June 1, 2023, between Mississippi Power and Regions Bank, as Trustee, and certain indentures supplemental thereto through June 28, 2023. (Designated in Form 10-Q f or the quarter ended June 30, 2023, File No. 001-11229, as Exhibit 4(d)1, in Form 10-Q for the quarter ended June 30, 2023, File No. 001-11229, as Exhibit 4(d)2, and in Form 10-Q for the quarter ended June 30, 2023, file No. 001-11229, as Exhibit 4(d)3.)
Southern Power
	(e)	1	—	Senior Note Indenture dated as of June 1, 2002, between Southern Power Company and Computershare Trust Company, N.A., as Successor Trustee, and certain indentures supplemental thereto through January 8, 2021. (Designated in Registration No. 333-98553 as Exhibit 4.1, in Form 8-K dated September 14, 2011, File No. 333-98553, as Exhibit 4.4, in Form 8-K dated July 10, 2013, File No. 333-98553, as Exhibit 4.4, in Form 8-K dated November 12, 2015, File No. 333-98553, as Exhibit 4.4(a), in Form 8-K dated June 13, 2016, File No. 001-37803, as Exhibit 4.4(b), in Form 10-Q for the quarter ended September 30, 2016, File No. 001-37803, as Exhibit 4(f)1, in Form 8-K dated November 10, 2016, File No. 001-37803, as Exhibit 4.4(c), and in Form 8-K dated January 5, 2021, File No. 001-37803, as Exhibit 4.4.)
	(e)	2	—	Description of securities registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended. (Designated in Form 10-K for the year ended December 31, 2022, File No. 001-37803, as Exhibit 4 (e )2.)
Southern Company Gas
	(f)	1	—	Indenture dated February 20, 2001 between AGL Capital Corporation, AGL Resources Inc., and Computershare Trust Company, N.A., as Successor Trustee and First Supplemental Indenture thereto dated as of September 9, 2021. (Designated in Form S-3, File No. 333-69500, as Exhibit 4.2, and in Form 8-K dated September 7, 2021, File No. 1-14174, as Exhibit 4.2.)
	(f)	2	—	Southern Company Gas Capital Corporation's 6.00% Senior Notes due 2034, 5.875% Senior Notes due 2041, 4.40% Senior Notes due 2043, 3.875% Senior Notes due 2025, 3.250% Senior Notes due 2026, Form of 3.950% Senior Note due October 1, 2046, Form of Series 2017A 4.400% Senior Note due May 30, 2047, Form of 2020A 1.750% Senior Note due January 15, 2031, Form of Series 2021A 3.15% Senior Note due September 30, 2051, Form of Series 2022A 5.15% Senior Note due September 30, 2032, and Form of Series 2023A 5.75% Senior Note due September 15, 2033. (Designated in Form 8-K dated September 22, 2004, File No. 1-14174, as Exhibit 4.1, in Form 8-K dated March 16, 2011, File No. 1-14174, as Exhibit 4.1, in Form 8-K dated May 13, 2013, File No. 1-14174, as Exhibit 4.2, in Form 8-K dated November 13, 2015, File No. 1-14174, as Exhibit 4.2, in Form 8-K dated May 13, 2016, File No. 1-14174, as Exhibit 4.2, in Form 8-K dated September 8, 2016, File No. 1-14174, as Exhibit 4.1(b), in Form 8-K dated May 5, 2017, File No. 1-14174, as Exhibit 4.1, in Form 8-K dated August 17, 2020, File No. 1-14174, as Exhibit 4.1, in Form 8-K dated September 9, 2021, File No. 1-14174, as Exhibit 4.1, in Form 8-K dated September 6, 2022, File No. 1-14174, as Exhibit 4.1, and in Form 8-K dated September 11, 2023, File No. 1-14174, as Exhibit 4.1, respectively.)

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		(f)	3	—	Southern Company Gas' Guarantee related to the 6.00% Senior Notes due 2034, Guarantee related to the 5.875% Senior Notes due 2041, Guarantee related to the 4.40% Senior Notes due 2043, Guarantee related to the 3.875% Senior Notes due 2025, Guarantee related to the 3.250% Senior Notes due 2026, Form of Guarantee related to the 3.950% Senior Notes due October 1, 2046, Form of Guarantee related to the Series 2017A 4.400% Senior Notes due May 30, 2047, Form of Guarantee related to the Series 2020A 1.750% Senior Notes due January 15, 2031, Form of Guarantee related to the Series 2021A 3.15% Senior Note due September 30, 2051, Form of Guarantee related to the Series 2022A 5.15% Senior Notes due September 30, 2032, and Form of Guarantee related to the Series 2023A 5.75% Senior Notes Due September 15, 2033. (Designated in Form 8-K dated September 22, 2004, File No. 1-14174, as Exhibit 4.3, in Form 8-K dated March 16, 2011, File No. 1-14174, as Exhibit 4.1, in Form 8-K dated May 13, 2013, File No. 1-14174, as Exhibit 4.3, in Form 8-K dated November 13, 2015, File No. 1-14174, as Exhibit 4.3, in Form 8-K dated May 13, 2016, File No. 1-14174, as Exhibit 4.3, in in Form 8-K dated September 8, 2016, File No. 1-14174, as Exhibit 4.3(b), in Form 8-K dated May 5, 2017, File No. 1-14174, as Exhibit 4.3, in Form 8-K dated August 17, 2020, File No. 1-14174, as Exhibit 4.3, in Form 8-K dated September 9, 2021, File No. 1-14174, as Exhibit 4.3, in Form 8-K dated September 6, 2022, File No. 1-14174, as Exhibit 4.3, and in Form 8-K dated Septembe r 11 , 2023, File No. 1-14174 , as Exhibit 4.3, respectively.)
		(f)	4	—	Indenture dated December 1, 1989 of Atlanta Gas Light Company and First Supplemental Indenture thereto dated March 16, 1992. (Designated in Form S-3, File No. 33-32274, as Exhibit 4(a) and in Form S-3, File No. 33-46419, as Exhibit 4(a).)
		(f)	5	—	Indenture of Commonwealth Edison Company to Continental Illinois National Bank and Trust Company of Chicago, Trustee, dated as of January 1, 1954, Indenture of Adoption of Northern Illinois Gas Company to Continental Illinois National Bank and Trust Company of Chicago, Trustee, dated February 9, 1954, and certain indentures supplemental thereto. (Designated in Form 10-K for the year ended December 31, 1995, File No. 1-7296, as Exhibit 4.01, in Form 10-K for the year ended December 31, 1995, File No. 1-7296, as Exhibit 4.02, in Registration No. 2-56578 as Exhibits 2.21 and 2.25, in Form 10-Q for the quarter ended June 30, 1996, File No. 1-7296, as Exhibit 4.01, in Form 10-K for the year ended December 31, 1997, File No. 1-7296, as Exhibit 4.19, in Form 10-K for the year ended December 31, 2003, File No. 1-7296, as Exhibit 4.09, in Form 10-K for the year ended December 31, 2003, File No. 1-7296, as Exhibit 4.10, in Form 10-K for the year ended December 31, 2006, File No. 1-7296, as Exhibit 4.11, in Form 10-Q for the quarter ended September 30, 2008, File No. 1-7296, as Exhibit 4.01, in Form 10-Q for the quarter ended September 30, 2012, File No. 1-7296, as Exhibit 4, in Form 10-K for the year ended December 31, 2016, File No. 1-14174, as Exhibit 4(g)6, in Form 10-K for the year ended December 31, 2017, File No. 1-14174, as Exhibit 4(g)6, in Form 10-Q for the quarter ended September 30, 2018, File No. 1-14174, as Exhibit 4(g)1, in Form 10-K for the year ended December 31, 2019, File No. 1-14174, as Exhibit 4(f)6, in Form 10-K for the year ended December 31, 2020, File No. 1-14174, as Exhibit 4(f)6, in Form 10-Q for the quarter ended September 30, 2021, File No. 1-4174, as Exhibit 4(f)4, and in For m 10-Q for the quarter ended September 30, 2023, File No. 1-4174, as Exhibit 4(f)3.)

(10)	Material Contracts
	Southern Company
	#	(a)	1	—	Southern Company 2011 Omnibus Incentive Compensation Plan effective May 25, 2011. (Designated in Form 8-K dated May 25, 2011, File No. 1-3526, as Exhibit 10.1.)
	#	(a)	2	—	Form of Stock Option Award Agreement for Executive Officers of Southern Company under the Southern Company Omnibus Incentive Compensation Plan. (Designated in Form 10-Q for the quarter ended March 31, 2011, File No. 1-3526, as Exhibit 10(a)3.)
	#	(a)	3	—	Deferred Compensation Plan for Outside Directors of The Southern Company, Amended and Restated effective June 1, 2021 and First Amendment thereto effective as of June 1, 2021. (Designated in Form 10-Q for the quarter ended June 30, 2021, File No. 1-3526, as Exhibit 10(a)2, and in Form 10-K for the year ended December 31, 2021, File No. 1-3526, as Exhibit 10(a)25.)

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Table of Contents Index to Financial Statements


#	(a)	4	—	Southern Company Deferred Compensation Plan, Amended and Restated as of January 1, 2018, First Amendment thereto dated as of December 7, 2018, Second Amendment thereto dated as of January 29, 2019, Third Amendment thereto effective January 1, 2018 and Fourth Amendment thereto dated as of December 1, 2021. (Designated in Form 10-K for the year ended December 31, 2017, File No. 1-3526, as Exhibit 10(a)4, in Form 10-K for the year ended December 31, 2018, File No. 1-3526, as Exhibit 10(a)21, in Form 10-K for the year ended December 31, 2018, File No. 1-3526, as Exhibit 10(a)22, in Form 10-K for the year ended December 31, 2020, File No.1-3526, as Exhibit 10(a)24, and in Form 10-Q for the quarter ended March 31, 2022, File No. 1-3536, as Exhibit 10(a)4.)
#	(a)	5	—	The Southern Company Supplemental Executive Retirement Plan, Amended and Restated effective June 30, 2016, Amendment No. 1 thereto effective January 1, 2017, Amendment No. 2 thereto effective January 1, 2018, Amendment No. 3 thereto effective April 1, 2018, Amendment No. 4 thereto effective December 4, 2018, Amendment No. 5 thereto effective January 1, 2019 and Amendment No. 6 thereto effective January 1, 2019. (Designated in Form 10-Q for the quarter ended June 30, 2016, File No. 1-3526, as Exhibit 10(a)1, in Form 10-K for the year ended December 31, 2016, File No. 1-3526, as Exhibit 10(a)18, in Form 10-K for the year ended December 31, 2017, File No. 1-3526, as Exhibit 10(a)16, in Form 10-Q for the quarter ended March 31, 2018, File No. 1-3526, as Exhibit 10(a)1, in Form 10-K for the year ended December 31, 2018, File No. 1-3526, as Exhibit 10(a)23, in Form 10-K for the year ended December 31, 2018, File No. 1-3526, as Exhibit 10(a)24, and in Form 10-K for the year ended December 31, 2019, File No. 1-3526, as Exhibit 10(a)24.)
#	(a)	6	—	The Southern Company Supplemental Benefit Plan, Amended and Restated effective as of June 30, 2016, Amendment No. 1 thereto effective January 1, 2017, Amendment No. 2 thereto effective January 1, 2018, Amendment No. 3 thereto effective April 1, 2018, Amendment No. 4 thereto dated December 14, 2018, Amendment No. 5 thereto effective January 1, 2019, Amendment No. 6 thereto effective January 1, 2019, Amendment No. 7 thereto effective June 30, 2016, and Amendment No. 8 thereto effective July 1, 2021. (Designated in Form 10-Q for the quarter ended June 30, 2016, File No. 1-3526, as Exhibit 10(a)2, in Form 10-K for the year ended December 31, 2016, File No. 1-3526, as Exhibit 10(a)19, in Form 10-K for the year ended December 31, 2017, File No. 1-3526, as Exhibit 10(a)17, in Form 10-Q for the quarter ended March 31, 2018, File No. 1-3526, as Exhibit 10(a)2, in Form 10-K for the year ended December 31, 2018, File No. 1-3526, as Exhibit 10(a)25, in Form 10-K for the year ended December 31, 2018, File No. 1-3526, as Exhibit 10(a)26 in Form 10-K for the year ended December 31, 2019, File No. 1-3526, as Exhibit 10(a)23, in Form 10-K for the year ended December 31, 2020, File No. 1-3526, as Exhibit 10(a) 25, and in Form 10-Q for the quarter ended March 31, 2022, File No. 1-3526, as Exhibit 10(a)5.)
#	(a)	7	—	Amended and Restated Southern Company Change in Control Benefits Protection Plan effective August 15, 2022. (Designated in Form 8-K dated August 15, 2022, File No. 1-3526, as Exhibit 10.1.)
#	(a)	8	—	Deferred Compensation Trust Agreement for Directors of Southern Company and its Subsidiaries, Amended and Restated effective January 1, 2001, between Delaware Charter Guarantee & Trust Company, Southern Company, SCS, Alabama Power, Georgia Power, Mississippi Power, Southern Linc, Southern Company Energy Solutions, LLC, and Southern Nuclear and First Amendment thereto effective January 1, 2009. (Designated in Form 10-K for the year ended December 31, 2000, File No. 1-3526, as Exhibit 10(a)103 and in Form 10-K for the year ended December 31, 2008, File No. 1-3526, as Exhibit 10(a)16.)
#	(a)	9	—	Amended and Restated Deferred Stock Trust Agreement for Directors of Southern Company and its Subsidiaries, Amended and Restated effective December 16, 2020, by and between Southern Company and Delaware Charter Guarantee & Trust Company. (Designated in Form 10-K for the year ended December 31, 2020, File No. 1-3526, as Exhibit 10(a)9.)
#	(a)	10	—	Amended and Restated Deferred Cash Compensation Trust Agreement for Directors of Southern Company and its Subsidiaries, Amended and Restated effective December 16, 2020, by and between Southern Company and Delaware Charter Guarantee & Trust Company. (Designated in Form 10-K for the year ended December 31, 2020, File No. 1-3526, as Exhibit 10(a)10.)
#	(a)	11	—	Southern Company Senior Executive Change in Control Severance Plan, Amended and Restated effective August 15, 2022. (Designated in Form 8-K dated August 15, 2022, File No. 1-3526, as Exhibit 10.2.)
#	(a)	12	—	Southern Company Executive Change in Control Severance Plan, Amended and Restated effective August 15, 2022. (Designated in Form 10-Q for the quarter ended September 30, 2022, File No. 1-3526, as Exhibit 10(a)3.)

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	#	(a)	13	—	Form of Terms for Named Executive Officer Equity Awards Granted under the Southern Company 2021 Equity and Incentive Compensation Plan. (Designated in Form 10-Q for the quarter ended March 31, 2022, File No. 1-3526, as Exhibit 10(a)1).
	#	(a)	14	—	Deferred Compensation Agreement between Southern Company, SCS, Alabama Power, and Mark A. Crosswhite, effective July 30, 2008. (Designated in Form 10-K for the year ended December 31, 2016, File No. 1-3526, as Exhibit 10(a)17.)
	#	(a)	15	—	Consulting Agreement between SCS and Mark A. Crosswhite dated December 7, 2022. (Designated in Form 10-K for the year ended De cember 31, 2022, File No. 1-3526 , as Exhibi t 10(a)15.)
		(a)	16	—	The Southern Company Employee Savings Plan, Amended and Restated effective January 1, 2018, First Amendment thereto dated December 7, 2018, Second Amendment thereto dated January 29, 2019, Third Amendment thereto dated December 4, 2019, Fourth Amendment thereto dated November 27, 2020, Fifth Amendment thereto effective July 1, 2021, and Sixth Amendment thereto effective July 1, 2021. (Designated in Post-Effective Amendment No. 1 to Form S-8, File No. 333-212783 as Exhibit 4.3, in Form 10-K for the year ended December 31, 2019, File No. 1-3526, as Exhibit 10(a)25, in Form 10-K for the year ended December 31, 2019, File No. 1-3526, as Exhibit 10(a)26, in Form 10-K for the year ended December 31, 2019, File No. 1-3526, as Exhibit 10(a)27, in Form 10-K for the year ended December 31, 2020, File No. 1-3526, as Exhibit 10(a)26, in Form 10-Q for the quarter ended March 31, 2022, File No. 1-3526, as Exhibit 10(a)2, in Form 10-Q for the quarter ended March 31, 2022, File No. 1-3526, as Exhibit 10(a)3, and in Form 10-K for the year ended December 31, 2022, File No. 1-3526, as Exhibit 10(a)17.)
*	#	(a)	17	—	Eighth Amendment to the Southern Company Employee Savings Plan, dated December 13, 2023.
	#	(a)	18	—	Deferred Compensation Agreement between Southern Company, SCS, Georgia Power, and Christopher C. Womack, effective December 10, 2008. (Designated in Form 10-Q for the quarter ended September 30, 2022, File No. 1-3526, as Exhibit 10(a)4.)
*	#	(a)	19	—	Consul ting Ag reement between SCS and Thomas A. Fanning dated Decem ber 13, 2023.
	#	(a)	20	—	The Southern Company Equity and Incentive Compensation Plan, effective May 26, 2021. (Designated in Form 8-K dated May 26, 2021, File No. 1-3526, as Exhibit 10.1.)
	Alabama Power
		(b)	1	—	Intercompany Interchange Contract as revised effective May 1, 2007, among Alabama Power, Georgia Power, Gulf Power, Mississippi Power, Southern Power Company, and SCS and Appendix A thereto dated as of January 1, 2019. (Designated in Form 10-Q for the quarter ended March 31, 2007, File No. 1-3164, as Exhibit 10(b)5 and in Form 10-K for the year ended December 31, 2018, File No. 1-3164, as Exhibit 10(b)2.)
	Georgia Power
		(c)	1	—	Intercompany Interchange Contract as revised effective May 1, 2007, among Alabama Power, Georgia Power, Gulf Power, Mississippi Power, Southern Power Company, and SCS and Appendix A thereto dated as of January 1, 2019. See Exhibit 10(b)1 herein.
		(c)	2	—	Revised and Restated Integrated Transmission System Agreement dated as of November 12, 1990, between Georgia Power and OPC. (Designated in Form 10-K for the year ended December 31, 1990, File No. 1-6468, as Exhibit 10(g).)
		(c)	3	—	Revised and Restated Integrated Transmission System Agreement between Georgia Power and Dalton dated as of December 7, 1990. (Designated in Form 10-K for the year ended December 31, 1990, File No. 1-6468, as Exhibit 10(gg).)
		(c)	4	—	Revised and Restated Integrated Transmission System Agreement between Georgia Power and MEAG Power dated as of December 7, 1990. (Designated in Form 10-K for the year ended December 31, 1990, File No. 1-6468, as Exhibit 10(hh).)
		(c)	5	—	Settlement Agreement dated as of June 9, 2017, by and among Georgia Power, OPC, MEAG Power, Dalton, and Toshiba and Amendment No. 1 thereto dated as of December 8, 2017. (Designated in Form 8-K dated June 16, 2017, File No. 1-6468, as Exhibit 10.1 and in Form 8-K dated December 8, 2017, File No. 1-6468, as Exhibit 10.1.)
		(c)	6	—	Amended and Restated Services Agreement dated as of June 20, 2017, by and among Georgia Power, for itself and as agent for OPC, MEAG Power, MEAG Power SPVJ, LLC, MEAG Power SPVM, LLC, MEAG Power SPVP, LLC, and Dalton, and Westinghouse and WECTEC Global Project Services, Inc. (Pursuant to Item 601(b)(10) of Regulation S-K, certain identified information has been omitted from this exhibit because it is both not material and is the type that Georgia Power treats as private or confidential.) (Designated in Form 8-K dated February 1, 2024, Fi le No . 1-6468, as Exhibit 10.1.)

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		(c)	7	—	Construction Completion Agreement dated as of October 23, 2017, between Georgia Power, for itself and as agent for OPC, MEAG Power, MEAG Power SPVJ, LLC, MEAG Power SPVM, LLC, MEAG Power SPVP, LLC, and Dalton, and Bechtel, Amendment No. 1 thereto dated as of October 12, 2018, and Amendment No. 2 thereto dated as of November 8, 2019. (Georgia Power has requested confidential treatment for certain portions of these documents pursuant to applications for confidential treatment sent to the SEC. Georgia Power omitted such portions from the filings and filed them separately with the SEC.) (Designated in Form 10-K for the year ended December 31, 2017, File No. 1-6468, as Exhibit 10(c)8 and in Form 10-K for the year ended December 31, 2018, File No. 1-6468, as Exhibit 10(c)10, and in Form 10-K for the year ended December 31, 2019, File No. 1-6468, as Exhibit 10(c)8.)
		(c)	8	—	Plant Alvin W. Vogtle Additional Units Ownership Participation Agreement dated as of April 21, 2006, among Georgia Power, OPC, MEAG Power, and The City of Dalton, Georgia, Amendment 1 thereto dated as of April 8, 2008, Amendment 2 thereto dated as of February 20, 2014, Agreement Regarding Additional Participating Party Rights and Amendment 3 thereto dated as of November 2, 2017, and First Amendment to Agreement Regarding Additional Participating Party Rights and Amendment No. 3 to Plant Alvin W. Vogtle Additional Units Ownership Participation Agreement, dated as of August 31, 2018. (Designated in Form 8-K dated April 21, 2006, File No. 33-7591, as Exhibit 10.4.4, in Form 10-K for the year ended December 31, 2013, File No. 000-53908, as Exhibit 10.3.2(a), in Form 10-K for the year ended December 31, 2013, File No. 000-53908, as Exhibit 10.3.2(b), in Form 10-Q for the quarter ended September 30, 2017, File No. 000-53908, as Exhibit 10.1, and in Form 8-K dated August 31, 2018, File No. 1-6468, as Exhibit 10.1.)
		(c)	9	—	Global Amendments to Vogtle Additional Units Agreements, dated as of February 18, 2019, among Georgia Power, OPC, MEAG Power, MEAG Power SPVJ, LLC, MEAG Power SPVM, LLC, MEAG Power SPVP, LLC, and Dalton. (Designated in Form 10-K for the year ended December 31, 2018, File No. 1-6468, as Exhibit 10(c)12.)
	Mississippi Power
		(d)	1	—	Intercompany Interchange Contract as revised effective May 1, 2007, among Alabama Power, Georgia Power, Gulf Power, Mississippi Power, Southern Power Company, and SCS and Appendix A thereto dated as of January 1, 2019. See Exhibit 10(b)1 herein.
		(d)	2	—	Transmission Facilities Agreement dated February 25, 1982, Amendment No. 1 dated May 12, 1982 and Amendment No. 2 dated December 6, 1983, between Entergy Corporation (formerly Gulf States) and Mississippi Power. (Designated in Form 10-K for the year ended December 31, 1981, File No. 001-11229, as Exhibit 10(f), in Form 10-K for the year ended December 31, 1982, File No. 001-11229, as Exhibit 10(f)(2), and in Form 10-K for the year ended December 31, 1983, File No. 001-11229, as Exhibit 10(f)(3).)
	Southern Power
		(e)	1	—	Intercompany Interchange Contract as revised effective May 1, 2007, among Alabama Power, Georgia Power, Gulf Power, Mississippi Power, Southern Power Company, and SCS and Appendix A thereto dated as of January 1, 2019. See Exhibit 10(b)1 herein.
	Southern Company Gas
		(f)	1	—	Final Allocation Agreement dated January 3, 2008. (Designated in Form 10-K for the year ended December 31, 2007, File No. 1-7296, as Exhibit 10.15.)

(14)	Code of Ethics
	Southern Company
		(a)		—	The Southern Company Code of Ethics. (Designated in Form 10-K for the year ended December 31, 2016, File No. 1-3526, as Exhibit 14(a).)
	Alabama Power
		(b)		—	The Southern Company Code of Ethics. See Exhibit 14(a) herein.
	Georgia Power
		(c)		—	The Southern Company Code of Ethics. See Exhibit 14(a) herein.
	Mississippi Power
		(d)		—	The Southern Company Code of Ethics. See Exhibit 14(a) herein.
	Southern Power
		(e)		—	The Southern Company Code of Ethics. See Exhibit 14(a) herein.

E-8

Table of Contents Index to Financial Statements


	Southern Company Gas
		(f)		—	The Southern Company Code of Ethics. See Exhibit 14(a) herein.

(21)	Subsidiaries of Registrants
	Southern Company
	*	(a)		—	Subsidiaries of Registrant.
	Alabama Power
		Omitted pursuant to General Instruction I(2)(b) of Form 10-K.
	Georgia Power
		Omitted pursuant to General Instruction I(2)(b) of Form 10-K.
	Mississippi Power
		Omitted pursuant to General Instruction I(2)(b) of Form 10-K.
	Southern Power
		Omitted pursuant to General Instruction I(2)(b) of Form 10-K.
	Southern Company Gas
		Omitted pursuant to General Instruction I(2)(b) of Form 10-K.

(23)	Consents of Experts and Counsel
	Southern Company
	*	(a)	1	—	Consent of Deloitte & Touche LLP.
	Alabama Power
	*	(b)	1	—	Consent of Deloitte & Touche LLP.
	Georgia Power
	*	(c)	1	—	Consent of Deloitte & Touche LLP.
	Mississippi Power
	*	(d)	1	—	Consent of Deloitte & Touche LLP.
	Southern Power
	*	(e)	1	—	Consent of Deloitte & Touche LLP.
	Southern Company Gas
	*	(f)	1	—	Consent of Deloitte & Touche LLP.
	*	(f)	2	—	Consent of BDO USA, P.C.

(24)	Powers of Attorney and Resolutions
	Southern Company
	*	(a)	1	—	Power of Attorney and resolution.
	Alabama Power
	*	(b)	1	—	Power of Attorney and resolution.
	Georgia Power
	*	(c)	1	—	Power of Attorney and resolution.
	Mississippi Power
	*	(d)	1	—	Power of Attorney and resolution.
	Southern Power
	*	(e)	1	—	Power of Attorney and resolution.
	Southern Company Gas
	*	(f)	1	—	Power of Attorney and resolution.

E-9

Table of Contents Index to Financial Statements


(31)	Section 302 Certifications
	Southern Company
	*	(a)	1	—	Certificate of Southern Company's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	*	(a)	2	—	Certificate of Southern Company's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	Alabama Power
	*	(b)	1	—	Certificate of Alabama Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	*	(b)	2	—	Certificate of Alabama Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	Georgia Power
	*	(c)	1	—	Certificate of Georgia Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	*	(c)	2	—	Certificate of Georgia Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	Mississippi Power
	*	(d)	1	—	Certificate of Mississippi Power's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	*	(d)	2	—	Certificate of Mississippi Power's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	Southern Power
	*	(e)	1	—	Certificate of Southern Power Company's Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	*	(e)	2	—	Certificate of Southern Power Company's Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	Southern Company Gas
	*	(f)	1	—	Certificate of Southern Company Gas' Chief Executive Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.
	*	(f)	2	—	Certificate of Southern Company Gas' Chief Financial Officer required by Section 302 of the Sarbanes-Oxley Act of 2002.

(32)	Section 906 Certifications
	Southern Company
	*	(a)		—	Certificate of Southern Company's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.
	Alabama Power
	*	(b)		—	Certificate of Alabama Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.
	Georgia Power
	*	(c)		—	Certificate of Georgia Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.
	Mississippi Power
	*	(d)		—	Certificate of Mississippi Power's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.
	Southern Power
	*	(e)		—	Certificate of Southern Power Company's Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.
	Southern Company Gas
	*	(f)		—	Certificate of Southern Company Gas' Chief Executive Officer and Chief Financial Officer required by Section 906 of the Sarbanes-Oxley Act of 2002.

E-10

Table of Contents Index to Financial Statements


(97)	Policy Relating to Recovery of Erroneously Awarded Compensation
	Southern Company
	*	(a)	—	T he Southern Company and Covered Subsidiaries C ompensation R ecoupment Policy, effective December 1, 2023.
	Georgia Power
		(c)	—	The Southern Company and Covered Subsidiaries Compensation Recoupment Policy, effective December 1, 2023. See Exhibit 97(a) herein.
	Southern Power
		(e)	—	The Southern Company and Covered Subsidiaries Compensation Recoupment Policy, effective December 1, 2023. See Exhibit 97(a) herein.

(101)	Interactive Data Files
	*	INS	—	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	—	XBRL Taxonomy Extension Schema Document
	*	CAL	—	XBRL Taxonomy Calculation Linkbase Document
	*	DEF	—	XBRL Definition Linkbase Document
	*	LAB	—	XBRL Taxonomy Label Linkbase Document
	*	PRE	—	XBRL Taxonomy Presentation Linkbase Document

(104)	Cover Page Interactive Data File
	*		—	Formatted as inline XBRL with applicable taxonomy extension information contained in Exhibits 101.

E-11

Table of Contents Index to Financial Statements

THE SOUTHERN COMPANY

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) 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.


THE SOUTHERN COMPANY

By:			Christopher C. Womack
			Chairman, President, and
			Chief Executive Officer

By:			/s/ Melissa K. Caen
			(Melissa K. Caen, Attorney-in-fact)

Date:			February 14, 2024

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. The signature of each of the undersigned shall be deemed to relate only to matters having reference to the above-named company and any subsidiaries thereof.


Christopher C. Womack
Chairman, President, and Chief Executive Officer (Principal Executive Officer)

Daniel S. Tucker
Executive Vice President and Chief Financial Officer (Principal Financial Officer)

David P. Poroch
Comptroller and Chief Accounting Officer (Principal Accounting Officer)
Directors:
Janaki Akella Henry A. Clark III Shantella E. Cooper Anthony F. Earley, Jr. David J. Grain Donald M. James John D. Johns			Dale E. Klein David E. Meador Ernest J. Moniz William G. Smith, Jr. Kristine L. Svinicki Lizanne Thomas E. Jenner Wood III


By:						/s/ Melissa K. Caen
						(Melissa K. Caen, Attorney-in-fact)

Date: February 14, 2024

Table of Contents Index to Financial Statements

ALABAMA POWER COMPANY

SIGNATURES


ALABAMA POWER COMPANY

By:			J. Jeffrey Peoples
			Chairman, President, and Chief Executive Officer

By:			/s/ Melissa K. Caen
			(Melissa K. Caen, Attorney-in-fact)

Date:			February 14, 2024


J. Jeffrey Peoples
Chairman, President, and Chief Executive Officer (Principal Executive Officer)

Moses H. Feagin
Executive Vice President, Chief Financial Officer, and Treasurer (Principal Financial Officer)

Anita Allcorn-Walker
Senior Vice President and Comptroller (Principal Accounting Officer)
Directors:
Angus R. Cooper, III O. B. Grayson Hall, Jr. Anthony A. Joseph Barbara J. Knight Catherine J. Randall			Kevin B. Savoy R. Mitchell Shackleford, III Charisse D. Stokes Phillip M. Webb


By:						/s/ Melissa K. Caen
						(Melissa K. Caen, Attorney-in-fact)

Date: February 14, 2024

Supplemental Information to be Furnished with Reports Filed Pursuant to Section 15(d) of the Act by Registrants Which Have Not Registered Securities Pursuant to Section 12 of the Act:

Alabama Power is not required to send an annual report or proxy statement to its sole shareholder and parent company, The Southern Company, and will not prepare such a report after filing this Annual Report on Form 10-K for fiscal year 2023. Accordingly, Alabama Power will not file an annual report with the Securities and Exchange Commission.

Table of Contents Index to Financial Statements

GEORGIA POWER COMPANY

SIGNATURES


GEORGIA POWER COMPANY

By:			Kimberly S. Greene
			Chairman, President, and Chief Executive Officer

By:			/s/ Melissa K. Caen
			(Melissa K. Caen, Attorney-in-fact)

Date:			February 14, 2024


Kimberly S. Greene
Chairman, President, and Chief Executive Officer (Principal Executive Officer)

Aaron P. Abramovitz
Executive Vice President, Chief Financial Officer, and Treasurer (Principal Financial and Accounting Officer)

Adam D. Houston
Vice President and Comptroller (Principal Accounting Officer)
Directors:
Mark L. Burns Jill Campbell Andrew W. Evans Steven R. Ewing			Thomas M. Holder Kessel D. Stelling, Jr. Charles K. Tarbutton Clyde C. Tuggle


By:						/s/ Melissa K. Caen
						(Melissa K. Caen, Attorney-in-fact)

Date: February 14, 2024

Table of Contents Index to Financial Statements

MISSISSIPPI POWER COMPANY

SIGNATURES


MISSISSIPPI POWER COMPANY

By:			Anthony L. Wilson
			Chairman, President, and Chief Executive Officer

By:			/s/ Melissa K. Caen
			(Melissa K. Caen, Attorney-in-fact)

Date:			February 14, 2024


Anthony L. Wilson
Chairman, President, and Chief Executive Officer (Principal Executive Officer)

Matthew P. Grice
Vice President, Treasurer, and Chief Financial Officer (Principal Financial Officer)

Pascal B. Gill
Comptroller (Principal Accounting Officer)
Directors:
Augustus Leon Collins Thomas M. Duff Mary S. Graham			Mark E. Keenum Kari R. Wilkinson Camille Scales Young


By:						/s/ Melissa K. Caen
						(Melissa K. Caen, Attorney-in-fact)

Date: February 14, 2024

Supplemental Information to be Furnished with Reports Filed Pursuant to Section 15(d) of the Act by Registrants Which Have Not Registered Securities Pursuant to Section 12 of the Act:

Mississippi Power is not required to send an annual report or proxy statement to its sole shareholder and parent company, The Southern Company, and will not prepare such a report after filing this Annual Report on Form 10-K for fiscal year 2023. Accordingly, Mississippi Power will not file an annual report with the Securities and Exchange Commission.

Table of Contents Index to Financial Statements

SOUTHERN POWER COMPANY

SIGNATURES


SOUTHERN POWER COMPANY

By:			Christopher Cummiskey
			Chairman and Chief Executive Officer

By:			/s/ Melissa K. Caen
			(Melissa K. Caen, Attorney-in-fact)

Date:			February 14, 2024


Christopher Cummiskey
Chairman and Chief Executive Officer (Principal Executive Officer)

Gary Kerr
Senior Vice President, Chief Financial Officer, and Treasurer (Principal Financial Officer)

Jelena Andrin
Vice President and Comptroller (Principal Accounting Officer)
Directors:
Bryan D. Anderson Stan W. Connally Martin B. Davis Sloane N. Drake			James Y. Kerr, II Sterling A. Spainhour Daniel S. Tucker Christopher C. Womack


By:						/s/ Melissa K. Caen
						(Melissa K. Caen, Attorney-in-fact)

Date: February 14, 2024

Table of Contents Index to Financial Statements

SOUTHERN COMPANY GAS

SIGNATURES


SOUTHERN COMPANY GAS

By:			James Y. Kerr II
			Chairman, President, and Chief Executive Officer

By:			/s/ Melissa K. Caen
			(Melissa K. Caen, Attorney-in-fact)

Date:			February 14, 2024


James Y. Kerr II
Chairman, President, and Chief Executive Officer (Principal Executive Officer)

Grace A. Kolvereid
Executive Vice President, Chief Financial Officer, and Treasurer (Principal Financial Officer)

Sarah P. Adams
Senior Vice President and Comptroller (Principal Accounting Officer)
Directors:
Sandra N. Bane Thomas D. Bell, Jr. Brenda J. Gaines Bradley J. Henderson			Norman G. Holmes J. Bret Lane John E. Rau Eric S. Smith


By:						/s/ Melissa K. Caen
						(Melissa K. Caen, Attorney-in-fact)

Date: February 14, 2024

Supplemental Information to be Furnished with Reports Filed Pursuant to Section 15(d) of the Act by Registrants Which Have Not Registered Securities Pursuant to Section 12 of the Act:

Southern Company Gas is not required to send an annual report or proxy statement to its sole shareholder and parent company, The Southern Company, and will not prepare such a report after filing this Annual Report on Form 10-K for fiscal year 2023. Accordingly, Southern Company Gas will not file an annual report with the Securities and Exchange Commission.

Previous: Item 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES