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LEASES (Tables)
12 Months Ended
Dec. 31, 2025
Leases [Abstract]  
Major categories of lease obligations The major categories of lease obligations are as follows:
Southern
Company
Alabama
Power
Georgia
Power
Mississippi
Power
Southern
Power
Southern
Company
Gas
 (in millions)
At December 31, 2025
Electric generating units(*)
$1,064 $53 $1,793 $ $ $ 
Real estate/land931 3 37 1 541 111 
Communication towers134 3 5   20 
Railcars74 39 26 9   
Other49 6 3 19   
Total$2,252 $104 $1,864 $29 $541 $131 
At December 31, 2024
Electric generating units(*)
$672 $56 $1,509 $— $— $— 
Real estate/land834 45 540 20 
Communication towers118 — — 21 
Railcars64 31 29 — — 
Other52 16 — — 
Total$1,740 $94 $1,589 $22 $540 $41 
(*)Amounts related to affiliate leases are eliminated in consolidation for Southern Company. See "Contracts that Contain a Lease" herein for additional information.
Balance sheet amounts recorded for operating and financing leases
Balance sheet amounts recorded for operating and finance leases were as follows:
Southern
Company
Alabama
Power
Georgia
Power
Mississippi
Power
Southern
Power
Southern
Company
Gas
 (in millions)
At December 31, 2025
Operating Leases
Operating lease ROU assets, net$1,358 $86 $1,120 $9 $479 $85 
Operating lease obligations - current$197 $14 $170 $4 $31 $8 
Operating lease obligations - non-current1,287 78 960 6 510 123 
Total operating lease obligations(*)
$1,484 $92 $1,130 $10 $541 $131 
Finance Leases
Finance lease ROU assets, net$742 $12 $710 $18 $ $ 
Finance lease obligations - current$16 $3 $29 $1 $ $ 
Finance lease obligations - non-current752 9 705 18   
Total finance lease obligations $768 $12 $734 $19 $ $ 
At December 31, 2024
Operating Leases
Operating lease ROU assets, net$1,386 $84 $1,331 $$484 $38 
Operating lease obligations - current$200 $14 $169 $$29 $11 
Operating lease obligations - non-current1,253 76 1,159 511 30 
Total operating lease obligations(*)
$1,453 $90 $1,328 $$540 $41 
Finance Leases
Finance lease ROU assets, net$254 $$227 $14 $— $— 
Finance lease obligations - current$$$20 $$— $— 
Finance lease obligations - non-current278 241 13 — — 
Total finance lease obligations$287 $$261 $14 $— $— 
(*)Includes operating lease obligations related to PPAs at Southern Company, Alabama Power, and Georgia Power totaling $486 million, $53 million, and $1.1 billion, respectively, at December 31, 2025 and $567 million, $55 million, and $1.3 billion, respectively, at December 31, 2024.
Lease costs and other information
Lease costs for 2025, 2024, and 2023, which includes both amounts recognized as operations and maintenance expense and amounts capitalized as part of the cost of another asset, were as follows:
Southern
Company
Alabama
Power
Georgia
Power
Mississippi
Power
Southern
Power
Southern
Company
Gas
 (in millions)
2025
Lease cost
Operating lease cost(*)
$271 $19 $248 $5 $34 $21 
Finance lease cost:
Amortization of ROU assets13 1 22 1   
Interest on lease obligations11  12    
Total finance lease cost24 1 34 1   
Short-term lease costs 45 22 15    
Variable lease cost52  79  6  
Total lease cost $392 $42 $376 $6 $40 $21 
2024
Lease cost
Operating lease cost(*)
$248 $19 $190 $$27 $12 
Finance lease cost:
Amortization of ROU assets20 23 — — 
Interest on lease obligations15 — 15 — — 
Total finance lease cost35 38 — — 
Short-term lease costs37 15 15 — — — 
Variable lease cost48 (1)77 — — 
Total lease cost$368 $35 $320 $$31 $12 
2023
Lease cost
Operating lease cost(*)
$252 $16 $192 $$34 $12 
Finance lease cost:
Amortization of ROU assets24 19 — — 
Interest on lease obligations14 — 17 — — — 
Total finance lease cost38 36 — — 
Short-term lease costs40 16 16 — — — 
Variable lease cost47 — 74 — — 
Total lease cost$377 $34 $318 $$38 $12 
(*)Includes operating lease costs related to PPAs at Southern Company, Alabama Power, and Georgia Power totaling $113 million, $5 million, and $222 million, respectively, in 2025, $108 million, $5 million, and $168 million, respectively, in 2024, and $112 million, $4 million, and $174 million, respectively, in 2023.
Other information with respect to cash and noncash activities related to leases, as well as weighted-average lease terms and discount rates, is as follows:
Southern
Company
Alabama
Power
Georgia
Power
Mississippi
Power
Southern
Power
Southern
Company
Gas
 (in millions)
2025
Other information
Cash paid for amounts included in the measurements of lease obligations:
Operating cash flows from operating leases$270 $19 $257 $4 $33 $13 
Operating cash flows from finance leases11  17    
Financing cash flows from finance leases21 2 32 1   
ROU assets obtained under operating leases168 16 18 6 2 61 
ROU assets obtained under finance leases509 10 513 6   
2024
Other information
Cash paid for amounts included in the measurements of lease obligations:
Operating cash flows from operating leases$243 $19 $186 $$33 $12 
Operating cash flows from finance leases15 — 21 — — — 
Financing cash flows from finance leases11 23 — — 
ROU assets obtained under operating leases146 11 609 — 10 
Reassessment of ROU assets under operating leases(7)— — — (7)— 
ROU assets obtained under finance leases— 44 — — — 
2023
Other information
Cash paid for amounts included in the measurements of lease obligations:
Operating cash flows from operating leases$253 $17 $199 $$33 $12 
Operating cash flows from finance leases15 — 22 — — — 
Financing cash flows from finance leases18 16 — — 
ROU assets obtained under operating leases100 30 26 
ROU assets obtained under finance leases18 — — — 
Southern
Company
Alabama
Power
Georgia
Power
Mississippi
Power
Southern
Power
Southern
Company
Gas
At December 31, 2025
Weighted-average remaining lease term in years:
Operating leases16.09.77.04.631.410.9
Finance leases19.83.418.110.1N/AN/A
Weighted-average discount rate:
Operating leases 4.88 %5.07 %4.82 %4.58 %4.96 %5.30 %
Finance leases5.38 %4.38 %5.68 %3.78 %N/AN/A
At December 31, 2024
Weighted-average remaining lease term in years:
Operating leases16.410.27.94.332.36.8
Finance leases16.02.710.110.9N/AN/A
Weighted-average discount rate:
Operating leases4.73 %5.04 %4.73 %3.83 %4.88 %3.84 %
Finance leases4.86 %4.05 %5.8 %2.74 %N/AN/A
Maturities of operating lease liabilities
Maturities of lease liabilities are as follows:
At December 31, 2025
Southern
Company
Alabama
Power
Georgia
Power
Mississippi
Power
Southern
Power
Southern
Company
Gas
 (in millions)
Maturity Analysis
Operating leases:
2026$233 $18 $221 $$33 $
2027217 15 218 29 15 
2028202 11 216 30 16 
2029168 195 30 15 
2030118 111 30 16 
Thereafter1,294 56 378 954 110 
Total2,232 118 1,339 11 1,106 181 
Less: Present value discount 748 26 209 565 50 
Operating lease obligations $1,484 $92 $1,130 $10 $541 $131 
Finance leases:
2026$33 $$47 $$— $— 
202732 47 — — 
202844 59 — — 
202965 82 — — 
203067 63 — — 
Thereafter1,130 985 14 — — 
Total1,371 15 1,283 24 — — 
Less: Present value discount603 549 — — 
Finance lease obligations$768 $12 $734 $19 $— $— 
Maturities of finance lease liabilities
Maturities of lease liabilities are as follows:
At December 31, 2025
Southern
Company
Alabama
Power
Georgia
Power
Mississippi
Power
Southern
Power
Southern
Company
Gas
 (in millions)
Maturity Analysis
Operating leases:
2026$233 $18 $221 $$33 $
2027217 15 218 29 15 
2028202 11 216 30 16 
2029168 195 30 15 
2030118 111 30 16 
Thereafter1,294 56 378 954 110 
Total2,232 118 1,339 11 1,106 181 
Less: Present value discount 748 26 209 565 50 
Operating lease obligations $1,484 $92 $1,130 $10 $541 $131 
Finance leases:
2026$33 $$47 $$— $— 
202732 47 — — 
202844 59 — — 
202965 82 — — 
203067 63 — — 
Thereafter1,130 985 14 — — 
Total1,371 15 1,283 24 — — 
Less: Present value discount603 549 — — 
Finance lease obligations$768 $12 $734 $19 $— $— 
Lease income, operating leases
Lease income for 2025, 2024, and 2023 was as follows:
Southern
Company
Alabama
Power
Georgia
Power
Mississippi
Power
Southern
Power
Southern
Company
Gas
 (in millions)
2025
Lease income - interest income on sales-type leases$23 $ $ $14 $9 $ 
Lease income - operating leases145 7 29 3 148 36 
Variable lease income408 1   442  
Total lease income$576 $8 $29 $17 $599 $36 
2024
Lease income - interest income on sales-type leases$24 $— $— $15 $$— 
Lease income - operating leases136 28 88 36 
Variable lease income417 — — 450 — 
Total lease income$577 $10 $28 $18 $547 $36 
2023
Lease income - interest income on sales-type leases$24 $— $— $14 $10 $— 
Lease income - operating leases164 35 29 85 37 
Variable lease income406 — — 437 — 
Total lease income$594 $36 $29 $16 $532 $37 
Lease income, sales-type leases and Power Purchase Agreements
Lease income for 2025, 2024, and 2023 was as follows:
Southern
Company
Alabama
Power
Georgia
Power
Mississippi
Power
Southern
Power
Southern
Company
Gas
 (in millions)
2025
Lease income - interest income on sales-type leases$23 $ $ $14 $9 $ 
Lease income - operating leases145 7 29 3 148 36 
Variable lease income408 1   442  
Total lease income$576 $8 $29 $17 $599 $36 
2024
Lease income - interest income on sales-type leases$24 $— $— $15 $$— 
Lease income - operating leases136 28 88 36 
Variable lease income417 — — 450 — 
Total lease income$577 $10 $28 $18 $547 $36 
2023
Lease income - interest income on sales-type leases$24 $— $— $14 $10 $— 
Lease income - operating leases164 35 29 85 37 
Variable lease income406 — — 437 — 
Total lease income$594 $36 $29 $16 $532 $37 
Undiscounted cash flows to be received under tolling arrangements accounted for as sales-type leases
The undiscounted cash flows expected to be received for in-service leased assets under the leases are as follows:
At December 31, 2025
Southern
Company
Mississippi
Power
Southern
Power
 (in millions)
2026$39 $23 $15 
202738 22 15 
202837 21 15 
202936 20 15 
203034 19 15 
Thereafter270 114 155 
Total undiscounted cash flows$454 $219 $230 
Net investment in sales-type lease(*)
286 130 152 
Difference between undiscounted cash flows and discounted cash flows$168 $89 $78 
(*)For Mississippi Power, included in other current assets ($10 million and $10 million at December 31, 2025 and 2024, respectively) and other property and investments ($120 million and $129 million at December 31, 2025 and 2024, respectively) on the balance sheets. For Southern Power, included in other current assets ($15 million and $15 million at December 31, 2025 and 2024, respectively) and net investment in sales-type leases ($137 million and $143 million at December 31, 2025 and 2024, respectively) on the balance sheets.
Undiscounted cash flows to be received under PPAs accounted for as operating leases
The undiscounted cash flows to be received under operating leases and contracts accounted for as operating leases are as follows:
At December 31, 2025
Southern
Company
Alabama
Power
Southern
Power
Southern
Company Gas
 (in millions)
2026$119 $$148 $35 
2027111 150 28 
2028111 161 28 
2029116 164 28 
2030115 103 28 
Thereafter554 34 400 299 
Total$1,126 $56 $1,126 $446