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SOUTHERN CO

For the period ended Dec 31, 2023. Filed Feb 15, 2024.

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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.

FY2023 · Filed Feb 15, 2024

SO$92.34-1.1%Stored close · as of Nov 6, 2026

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

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Contents

Leases

  1. LEASES

Lessee

The Registrants recognize leases with a term of greater than 12 months on the balance sheet as lease obligations, representing the discounted future fixed payments due, along with ROU assets that will be amortized over the term of each lease.

As lessee, the Registrants lease certain electric generating units (including renewable energy facilities), real estate/land, communication towers, railcars, and other equipment and vehicles. The major categories of lease obligations are as follows:

SouthernCompanyAlabamaPowerGeorgiaPowerMississippiPowerSouthern PowerSouthern Company Gas
(in millions)
Electric generating units(*)$670$58$1,028$—$—$—
Real estate/land871454254628
Communication towers12314——23
Railcars6432275——
Other603218——
Total$1,788$98$1,115$25$546$51
Electric generating units(*)$760$59$1,163$—$—$—
Real estate/land885454254236
Communication towers14124——23
Railcars3412183——
Other794121—1
Total$1,899$81$1,240$26$542$60

(*)Amounts related to affiliate leases are eliminated in consolidation for Southern Company. See "Contracts that Contain a Lease" herein for additional information.

Real estate/land leases primarily consist of commercial real estate leases at Southern Company, Georgia Power, and Southern Company Gas and various land leases primarily associated with renewable energy facilities at Southern Power. The commercial real estate leases have remaining terms of up to 27 years while the land leases have remaining terms of up to 44 years, including renewal periods.

Communication towers are leased for the installation of equipment to provide cellular phone service to customers and to support the automated meter infrastructure programs at the traditional electric operating companies and Nicor Gas. Communication tower leases have remaining terms of up to 17 years.

Renewal options exist in many of the leases. The expected term used in calculating the lease obligation generally reflects only the noncancelable period of the lease unless it is considered reasonably certain that the lease will be extended. Land leases associated with renewable energy facilities at Southern Power and communication tower leases for automated meter infrastructure at Nicor Gas include renewal periods reasonably certain of exercise resulting in an expected lease term at least equal to the expected life of the renewable energy facilities and the automated meter infrastructure, respectively.

Contracts that Contain a Lease

While not specifically structured as a lease, some of the PPAs at Alabama Power and Georgia Power are deemed to represent a lease of the underlying electric generating units when the terms of the PPA convey the right to control the use of the underlying assets. Amounts recorded for leases of electric generating units are generally based on the amount of scheduled capacity payments due over the remaining term of the PPA, which varies betweenone and 16 years. Georgia Power has several PPAs with Southern Power that Georgia Power accounts for as leases with a lease obligation of $416 million and $461 million at December 31, 2023 and 2022, respectively. The amount paid for energy under these affiliate PPAs reflects a price that would be paid in an arm's-length transaction as reviewed and approved by the Georgia PSC. Amounts related to the affiliate PPAs are eliminated in consolidation for Southern Company.

II-187

Short-term Leases

Leases with an initial term of 12 months or less are not recorded on the balance sheet; the Registrants generally recognize lease expense for these leases on a straight-line basis over the lease term.

Residual Value Guarantees

Residual value guarantees exist primarily in railcar leases at Alabama Power and Georgia Power and the amounts probable of being paid under those guarantees are included in the lease payments. All such amounts are immaterial at December 31, 2023 and 2022.

Lease and Nonlease Components

For all asset categories, with the exception of electric generating units, gas pipelines, and real estate leases, the Registrants combine lease payments and any nonlease components, such as asset maintenance, for purposes of calculating the lease obligation and the right-of-use asset.

Balance sheet amounts recorded for operating and finance leases are as follows:

Southern CompanyAlabamaPowerGeorgiaPowerMississippiPowerSouthern PowerSouthern Company Gas
(in millions)
Operating Leases
Operating lease ROU assets, net$1,432$87$884$9$488$47
Operating lease obligations - current$183$12$135$3$29$11
Operating lease obligations - non-current1,30781740651740
Total operating lease obligations(*)$1,490$93$875$9$546$51
Finance Leases
Finance lease ROU assets, net$272$5$203$15$—$—
Finance lease obligations - current$11$2$18$1$—$—
Finance lease obligations - non-current287322215——
Total finance lease obligations$298$5$240$16$—$—
Operating Leases
Operating lease ROU assets, net$1,531$71$1,007$9$489$57
Operating lease obligations - current$197$9$151$4$28$9
Operating lease obligations - non-current1,38867851551451
Total operating lease obligations(*)$1,585$76$1,002$9$542$60
Finance Leases
Finance lease ROU assets, net$292$5$205$16$—$—
Finance lease obligations - current$18$2$16$1$—$—
Finance lease obligations - non-current296322216——
Total finance lease obligations$314$5$238$17$—$—

(*)Includes operating lease obligations related to PPAs at Southern Company, Alabama Power, and Georgia Power totaling $566 million, $58 million, and $813 million, respectively, at December 31, 2023 and $652 million, $59 million, and $952 million, respectively, at December 31, 2022.

If not presented separately on the Registrants' balance sheets, amounts related to leases are presented as follows: operating lease ROU assets, net are included in "other deferred charges and assets"; operating lease obligations are included in "other current liabilities" and "other deferred credits and liabilities," as applicable; finance lease ROU assets, net are included in "plant in service"; and finance lease obligations are included in "securities due within one year" and "long-term debt," as applicable.

II-188

Lease costs for 2023, 2022, and 2021, which includes both amounts recognized as operations and maintenance expense and amounts capitalized as part of the cost of another asset, are as follows:

SouthernCompanyAlabamaPowerGeorgiaPowerMississippiPowerSouthern PowerSouthern Company Gas
(in millions)
Lease cost
Operating lease cost(*)$252$16$192$5$34$12
Finance lease cost:
Amortization of ROU assets242191——
Interest on lease obligations14—17———
Total finance lease cost382361——
Short-term lease costs401616———
Variable lease cost47—74—4—
Sublease income——————
Total lease cost$377$34$318$6$38$12
Lease cost
Operating lease cost(*)$297$59$198$5$32$15
Finance lease cost:
Amortization of ROU assets231151——
Interest on lease obligations13—171——
Total finance lease cost361322——
Short-term lease costs644413———
Variable lease cost12513105—5—
Sublease income(1)—————
Total lease cost$521$117$348$7$37$15
Lease cost
Operating lease cost(*)$313$58$208$2$33$19
Finance lease cost:
Amortization of ROU assets211111——
Interest on lease obligations11—161——
Total finance lease cost321272——
Short-term lease costs481524———
Variable lease cost96483—5—
Sublease income1—————
Total lease cost$490$78$342$4$38$19

(*)Includes operating lease costs related to PPAs at Southern Company, Alabama Power, and Georgia Power totaling $112 million, $4 million, and $174 million, respectively, in 2023, $162 million, $48 million, and $180 million, respectively, in 2022, and $165 million, $47 million, and $184 million, respectively, in 2021.

II-189

Georgia Power has variable lease payments that are based on the amount of energy produced by certain renewable generating facilities subject to PPAs, including $42 million, $45 million, and $41 million in 2023, 2022, and 2021, respectively, from finance leases which are included in purchased power on Georgia Power's statements of income, of which $21 million, $21 million, and $20 million was included in purchased power, affiliates in 2023, 2022, and 2021, respectively.

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:

SouthernCompanyAlabamaPowerGeorgiaPowerMississippiPowerSouthern PowerSouthern Company Gas
(in millions)
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