ALABAMA POWER CO

For the period ended Dec 31, 2025. Filed Feb 19, 2026.

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 19, 2026

SO$93.57+1.3%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

See the whole filing, with its images and exhibits

Contents

Item 16. FORM 10-K SUMMARY

None.

IV-1

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS

FOR THE YEARS ENDED DECEMBER 31, 2025, 2024, AND 2023

Additions
Description	Balance at Beginning of Period	Charged to Income	Charged to Other Accounts	Deductions(*)	Balance at End of Period
(in millions)
Provision for uncollectible accounts:
Southern Company
2025	$74	$127	$7	$124	$84
2024	68	119	(1)	112	74
2023	71	87	3	93	68
Alabama Power
2025	$22	$22	$—	$21	$23
2024	16	26	—	20	22
2023	14	16	—	14	16
Georgia Power
2025	$15	$52	$—	$60	$7
2024	4	51	—	40	15
2023	3	26	—	25	4
Mississippi Power
2025	$1	$2	$—	$2	$1
2024	1	2	—	2	1
2023	1	2	—	2	1
Southern Power
2025	$—	$—	$—	$—	$—
2024	1	(1)	—	—	—
2023	1	—	—	—	1
Southern Company Gas
2025	$33	$50	$7	$40	$50
2024	44	39	(1)	49	33
2023	50	43	3	52	44

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

IV-2

SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS (CONTINUED)

FOR THE YEARS ENDED DECEMBER 31, 2025, 2024, AND 2023

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)(c)
2025	$268	$128	$—	$39	$357
2024	168	97	3	—	268
2023	207	(14)	(25)	—	168
Georgia Power(b)
2025	$124	$126	$—	$39	$211
2024	60	97	(33)	—	124
2023	98	(15)	(23)	—	60
Mississippi Power(c)
2025	$32	$—	$—	$—	$32
2024	32	—	—	—	32
2023	32	—	—	—	32
Southern Power(c)
2025	$21	$2	$—	$—	$23
2024	21	—	—	—	21
2023	21	—	—	—	21
Southern Company Gas(c)
2025	$4	$—	$—	$—	$4
2024	5	—	(1)	—	4
2023	7	—	(2)	—	5

(a)In 2024, Southern Company established a valuation allowance for certain Georgia state tax credits expected to expire prior to being fully utilized.

(b)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.

(c)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.

IV-3

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 and amendments thereto through May 27, 2025. (Designated in Form 10-K for the year ended December 31, 2018, File No. 1-3526, as Exhibit 3(a)1 and in Form 8-K dated May 21, 2025. File No. 1-3526, as Exhibit 3.1.)
(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 4.5, 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 4.5.)
(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.)

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 November 6, 2025. (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(b), 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), in Form 8-K dated September 5, 2023, File No. 1-3526, as Exhibit 4.4(b), in Form 8-K dated May 9, 2024, File No. 1-3526, as Exhibit 4.2, in Form 8-K dated September 4, 2024, File No. 1-3526, as Exhibit 4.2, in Form 8-K dated May 20, 2025, File No. 1-3526, as Exhibit 4.2, in Form 8-K dated November 3, 2025, File No, 1-3526, as Exhibit 4.2(a), and in Form 8-K dated November 3, 2025, File No. 1-3526, as Exhibit 4.2(b).)
		(a)	2	—	Subordinated Note Indenture dated as of October 1, 2015, between Southern Company and Computershare Trust Company, N.A., as successor Trustee, and certain indentures supplemental thereto through February 28, 2025. (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(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(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(b), in Form 8-K dated January 8, 2025, File No. 1-3526, as Exhibit 4.4, and in Form 8-K dated February 25, 2025, File No. 1-3526, as Exhibit 4.4.)
		(a)	3	—	Purchase Contract and Pledge Agreement, dated as of November 6, 2025, between Southern Company and U.S. Bank Trust Company, National Association, as Purchase Contract Agent, Collateral Agent, Custodial Agent, and Securities Intermediary. (Designated in Form 8-K dated November 3, 2025, File No. 1-3526, as Exhibit 4.9.)
	*	(a)	4	—	Description of securities registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended.

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 September 5, 2025. (Designated in Form 8-K dated December 4, 1997, File No. 1-3164, as Exhibit 4.1, 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 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, in Form 8-K dated November 6, 2023, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated March 20, 2025, File No. 1-3164, as Exhibit 4.6, in Form 8-K dated June 11, 2025, File No. 1-3164, as Exhibit 4.6, and in Form 8-K dated September 2, 2025, 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 September 29, 2025. (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(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 Exhibit 4.2(a), in Form 8-K dated May 1, 2023, File No. 1-6468, as Exhibit 4.2(b), in Form 8-K dated February 20, 2024, File No. 1-6468, as Exhibit 4.2(a), in Form 8-K dated February 20, 2024, File No. 1-6468, as Exhibit 4.2(b), in Form 8-K dated November 8, 2024, File No. 1-6468, as Exhibit 4.2, in Form 8-K dated December 2, 2024, File No. 1-6468, as Exhibit 4.2, in Form 8-K dated February 24, 2025, File No. 1-6468, as Exhibit 4.3(a), in Form 8-K dated February 24, 2025, File No. 1-6468, as Exhibit 4.3(b), in Form 8-K dated February 24, 2025, File No. 1-6468, as Exhibit 4.3(c), in Form 8-K dated September 24, 2025, File No. 1-6468, as Exhibit 4.3(b), and in Form 8-K dated September 24, 2025, File No. 1-6468, as Exhibit 4.3(c).)
(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.)

Mississippi Power
(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.)
(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.)
(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 March 28, 2025. (Designated in Form 10-Q for 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, in Form 10-Q for the quarter ended June 30, 2023, File No. 001-11229, as Exhibit 4(d)3, in Form 10-Q for the quarter ended March 31, 2024, File No. 001-11229, as Exhibit 4(d)1, in Form 10-Q for the quarter ended March 31, 2024, File No. 001-11229, as Exhibit 4(d)2, in Form 10-Q for the quarter ended June 30, 2024, File No. 001-11229, as Exhibit 4(d)1, in Form 10-Q for the quarter ended March 31, 2025, File No. 001-11229, as Exhibit 4(d)1, and in Form 10-Q for the quarter ended March 31, 2025, File No. 001-11229, as Exhibit 4(d)2.)
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 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, and in Form 8-K dated November 10, 2016, File No. 001-37803, as Exhibit 4.4(c).)
(e)	2	—	Senior Note Indenture dated as of August 1, 2025 between Southern Power Company and U.S. Bank Trust Company, National Association, as Trustee, and certain indentures supplemental thereto through September 19, 2025. (Designated in Registration No. 333-289172 as Exhibit 4.5, in Form 8-K dated September 16, 2025, File No.001-37803 as Exhibit 4.6(a), and in Form 8-K dated September 16, 2025, File No. 001-37803 as Exhibit 4.6(b).)
(e)	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 December 31, 2022, File No. 001-37803, as Exhibit 4(e)2.)
Southern Company Gas
(f)	1	—	Indenture dated February 20, 2001 among 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, 3.250% 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, Form of Series 2023A 5.75% Senior Note due September 15, 2033, and Form of Series 2024A 4.95% Senior Note due September 15, 2034. (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 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, in Form 8-K dated September 11, 2023, File No. 1-14174, as Exhibit 4.1, and in Form 8-K dated September 3, 2024, File No. 1-14174, as Exhibit 4.1, respectively.)
(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 3.250% 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, Form of Guarantee related to the Series 2023A 5.75% Senior Notes Due September 15, 2033, and Form of Guarantee related to the Series 2024A 4.95% Senior Notes due September 15, 2034. (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 May 13, 2016, File No. 1-14174, as Exhibit 4.3, 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 September 11, 2023, File No. 1-14174, as Exhibit 4.3, and in Form 8-K dated September 3, 2024, File No. 1-14174, as Exhibit 4.3, respectively.)
(f)	4	—	Indenture dated as of February 1, 2025 among Southern Company Gas Capital Corporation, Southern Company Gas, and U.S. Bank Trust Company, National Association, as Trustee. (Designated in Registration No. 333-285115, as Exhibit 4.2.)
(f)	5	—	Southern Company Gas Capital Corporation's Form of Series 2025A 4.05% Senior Notes due September 15, 2028 and Form of Series 2025B 5.10% Senior Notes due September 15, 2035. (Designated in Form 8-K dated September 3, 2025, File No. 1-14174, as Exhibit 4.1(a) and in Form 8-K dated September 3, 2025, File No. 1-14174, as Exhibit 4.1(b), respectively.)
(f)	6	—	Southern Company Gas' Form of Guarantee related to the Series 2025A 4.05% Senior Notes due September 15, 2028 and Form of Guarantee related to the Series 2025B 5.10% Senior Notes due September 15, 2035. (Designated in Form 8-K dated September 3, 2025, File No. 1-14174, as Exhibit 4.3(a) and in Form 8-K dated September 3, 2025, File No. 1-14174, as Exhibit 4.3(b), respectively.)
(f)	7	—	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).)

Southern Company
		(f)	8	—	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 4.10, 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, in Form 10-Q for the quarter ended September 30, 2023, File No. 1-4174, as Exhibit 4(f)3, in Form 10-Q for the quarter ended September 30, 2024, File No. 1-4174, as Exhibit 4(f)3, and in Form 10-Q for the quarter ended September 30, 2025, File No. 1-4174, as Exhibit 4(f)6.)
(10)	Material Contracts
	#	(a)	1	—	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.)
	#	(a)	2	—	Southern Company Deferred Compensation Plan, Amended and Restated as of January 1, 2025. (Designated in Form 10-K for the year ended December 31, 2024, File No. 1-3526 as Exhibit 10(a)2.)
	#	(a)	3	—	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)	4	—	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)	5	—	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.)

	Alabama Power
	#	(a)	6	—	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)	7	—	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)	8	—	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)	9	—	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)	10	—	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.)
	#	(a)	11	—	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)	12	—	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, Sixth Amendment thereto effective July 1, 2021, Seventh Amendment thereto dated December 23, 2022, Eighth Amendment thereto dated December 13, 2023, and Ninth Amendment thereto dated December 16, 2024. (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, in Form 10-K for the year ended December 31, 2022, File No. 1-3526, as Exhibit 10(a)17, in Form 10-K for the year ended December 31, 2023, File No. 1-3526, as Exhibit 10(a)17, and in Form 10-K for the year ended December 31, 2024, File No. 1-3526, as Exhibit 10(a)13.)
*		(a)	13	—	Tenth amendment to the Southern Company Employee Savings Plan, dated December 12, 2025.
	#	(a)	14	—	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)	15	—	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.)
*	#	(a)	16	—	Consulting Agreement between SCS and Daniel S. Tucker dated August 11, 2025.
*	#	(a)	17	—	Deferred Compensation Agreement among Southern Company, SCS, and David P. Poroch effective January 4, 2012.
		(b)	1	—	Intercompany Interchange Contract as revised effective May 1, 2007, among Alabama Power, Georgia Power, Gulf Power Company, 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 Company, 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).)
Mississippi Power
		(d)	1	—	Intercompany Interchange Contract as revised effective May 1, 2007, among Alabama Power, Georgia Power, Gulf Power Company, Mississippi Power, Southern Power Company, and SCS and Appendix A thereto dated as of January 1, 2019. See Exhibit 10(b)1 herein.
Southern Power
		(e)	1	—	Intercompany Interchange Contract as revised effective May 1, 2007, among Alabama Power, Georgia Power, Gulf Power Company, 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.)
(19)	Insider Trading Policies and Procedures
Southern Company
		(a)		—	Prohibition of Securities Trading Policy. (Designated in Form 10-K for the year ended December 31, 2024, File No. 1-3526, as Exhibit 19(a).)
Alabama Power
		(b)		—	Prohibition of Securities Trading Policy. (Designated in Form 10-K for the year ended December 31, 2024, File No. 1-3526, as Exhibit 19(b).)
Georgia Power
		(c)		—	Prohibition of Securities Trading Policy. (Designated in Form 10-K for the year ended December 31, 2024, File No. 1-3526, as Exhibit 19(c).)
Mississippi Power
		(d)		—	Prohibition of Securities Trading Policy. (Designated in Form 10-K for the year ended December 31, 2024, File No. 1-3526, as Exhibit 19(d).)
Southern Power
		(e)		—	Prohibition of Securities Trading Policy. (Designated in Form 10-K for the year ended December 31, 2024, File No. 1-3526, as Exhibit 19(e).)
Southern Company Gas
		(f)		—	Prohibition of Securities Trading Policy. (Designated in Form 10-K for the year ended December 31, 2024, File No. 1-3526, as Exhibit 19(f).)
(21)	Subsidiaries of Registrants
Southern Company
	*	(a)		—	Subsidiaries of Registrant.
Alabama Power
Georgia Power

Mississippi Power
Southern Power
Southern Company Gas
(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.
(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.
(97)	Policy Relating to Recovery of Erroneously Awarded Compensation
Southern Company
			(a)		—	The Southern Company and Covered Subsidiaries Compensation Recoupment Policy, effective December 1, 2023. (Designated in Form 10-K for the year ended December 31, 2023, File No. 1-3526, as Exhibit 97(a).)
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.

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