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Item 6. Exhibits.

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Item 6. Exhibits.

The exhibits below with an asterisk (*) preceding the exhibit number are filed herewith. The remaining exhibits have previously been filed with the SEC and are incorporated herein by reference. The exhibits marked with a pound sign (#) are management contracts or compensatory plans or arrangements.

(3) Articles of Incorporation and By-Laws
Southern Company
(a)1-Certificate of Amendment of Restated Certificate of Incorporation of Southern Company, effective May 13, 2026. (Designated in Form 8-K dated May 13, 2026, File No. 1-3526, as Exhibit 3.1.)
(a)2-Restated Certificate of Incorporation of Southern Company dated May 13, 2026. (Designated in Form 8-K dated May 13, 2026, File No. 1-3526, as Exhibit 3.2.)
(4) Instruments Describing Rights of Security Holders, Including Indentures
Georgia Power
(c)1-Senior Note Indenture dated as of December 1, 2025, between Georgia Power and U.S. Bank Trust Company, National Association, as Senior Note Indenture Trustee. (Designated in Form 8-K dated May 19, 2026, File No. 1-6468 as Exhibit 4.2.)

Table of Contents Index to Financial Statements

(c)2-First Supplemental Indenture dated as of May 22, 2026 to Senior Note Indenture dated as of December 1, 2025, providing for the issuance of the Series 2026A Floating Rate Senior Notes due November 22, 2027. (Designated in Form 8-K dated May 19, 2026, File No. 1-6468 as Exhibit 4.3(b).)
(c)3-Second Supplemental Indenture dated as of May 22, 2026 to Senior Note Indenture dated as of December 1, 2025, providing for the issuance of the Series 2026B 4.60% Senior Notes due June 15, 2029. (Designated in Form 8-K dated May 19, 2026, File No. 1-6468 as Exhibit 4.3(c).)
Southern Power
(e)-Third Supplemental Indenture dated as of June 4, 2026 to Senior Note Indenture dated as of August 1, 2025, providing for the issuance of the Series 2026A 4.80% Senior Notes due June 15, 2031. (Designated in Form 8-K dated June 1, 2026, File No. 1-37803, as Exhibit 4.6.)
Southern Company Gas
(f)1-Subordinated Note Indenture dated as of May 1, 2026, among Southern Company Gas Capital, Southern Company Gas, and U.S. Bank Trust Company, National Association, as Subordinated Note Indenture Trustee. (Designated in Form 8-K dated May 20, 2026, File No. 1-14174 as Exhibit 4.5.)
(f)2-First Supplemental Indenture dated as of May 22, 2026 to Subordinated Note Indenture dated as of May 1, 2026, providing for the issuance of the Series 2026A 6.05% Fixed-to-Fixed Reset Rate Junior Subordinated Notes due September 15, 2056. (Designated in Form 8-K dated May 20, 2026, File No. 1-14174 as Exhibit 4.7.)
(24) Power of Attorney and Resolutions
Southern Company
(a)-Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2025, File No. 1-3526 as Exhibit 24(a)1.)
Alabama Power
(b)-Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2025, File No. 1-3164 as Exhibit 24(b)1.)
Georgia Power
(c)-Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2025, File No. 1-6468 as Exhibit 24(c)1.)
Mississippi Power
(d)-Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2025, File No. 001-11229 as Exhibit 24(d)1.)
Southern Power
(e)-Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2025, File No. 001-37803 as Exhibit 24(e)1.)
Southern Company Gas
(f)-Power of Attorney and resolution. (Designated in the Form 10-K for the year ended December 31, 2025, File No. 1-14174 as Exhibit 24(f)1.)

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.

Table of Contents Index to Financial Statements

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.
(101) Interactive Data Files
*INS-Inline XBRL Instance Document – The instance document does not appear in the interactive data file because its XBRL tags are embedded within the inline XBRL document.
*SCH-Inline XBRL Taxonomy Extension Schema Document
*CAL-Inline XBRL Taxonomy Calculation Linkbase Document
*DEF-Inline XBRL Definition Linkbase Document
*LAB-Inline XBRL Taxonomy Label Linkbase Document
*PRE-Inline XBRL Taxonomy Presentation Linkbase Document
(104) Cover Page Interactive Data File
*Formatted as inline XBRL with applicable taxonomy extension information contained in Exhibits 101.

Table of Contents Index to Financial Statements

THE SOUTHERN COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

THE SOUTHERN COMPANY
ByChristopher C. Womack
Chairman, President, and Chief Executive Officer
(Principal Executive Officer)
ByDavid P. Poroch
Executive Vice President and Chief Financial Officer
(Principal Financial Officer)
By/s/ Melissa K. Caen
(Melissa K. Caen, Attorney-in-fact)

Date: July 29, 2026

Table of Contents Index to Financial Statements

ALABAMA POWER COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

ALABAMA POWER COMPANY
ByJ. Jeffrey Peoples
Chairman, President, and Chief Executive Officer
(Principal Executive Officer)
ByMoses H. Feagin
Executive Vice President, Chief Financial Officer, and Treasurer
(Principal Financial Officer)
By/s/ Melissa K. Caen
(Melissa K. Caen, Attorney-in-fact)

Date: July 29, 2026

Table of Contents Index to Financial Statements

GEORGIA POWER COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

GEORGIA POWER COMPANY
ByKimberly S. Greene
Chairman, President, and Chief Executive Officer
(Principal Executive Officer)
ByTyler M. Cook
Senior Vice President, Chief Financial Officer, and Treasurer
(Principal Financial Officer)
By/s/ Melissa K. Caen
(Melissa K. Caen, Attorney-in-fact)

Date: July 29, 2026

Table of Contents Index to Financial Statements

MISSISSIPPI POWER COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

MISSISSIPPI POWER COMPANY
ByPedro P. Cherry
Chairman, President, and Chief Executive Officer
(Principal Executive Officer)
ByMatthew P. Grice
Vice President, Chief Financial Officer, and Treasurer
(Principal Financial Officer)
By/s/ Melissa K. Caen
(Melissa K. Caen, Attorney-in-fact)

Date: July 29, 2026

Table of Contents Index to Financial Statements

SOUTHERN POWER COMPANY

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

SOUTHERN POWER COMPANY
ByChristopher Cummiskey
Chairman and Chief Executive Officer
(Principal Executive Officer)
ByGary Kerr
Senior Vice President, Chief Financial Officer, and Treasurer
(Principal Financial Officer)
By/s/ Melissa K. Caen
(Melissa K. Caen, Attorney-in-fact)

Date: July 29, 2026

Table of Contents Index to Financial Statements

SOUTHERN COMPANY GAS

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. The signature of the undersigned company shall be deemed to relate only to matters having reference to such company and any subsidiaries thereof included in such company's report.

SOUTHERN COMPANY GAS
ByJames Y. Kerr II
Chairman, President, and Chief Executive Officer
(Principal Executive Officer)
ByGrace A. Kolvereid
Executive Vice President, Chief Financial Officer, and Treasurer
(Principal Financial Officer)
By/s/ Melissa K. Caen
(Melissa K. Caen, Attorney-in-fact)

Date: July 29, 2026

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